diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/platform')
41 files changed, 0 insertions, 10224 deletions
diff --git a/ANDROID_3.4.5/arch/x86/platform/Makefile b/ANDROID_3.4.5/arch/x86/platform/Makefile deleted file mode 100644 index 8d874396..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/Makefile +++ /dev/null @@ -1,11 +0,0 @@ -# Platform specific code goes here -obj-y += ce4100/ -obj-y += efi/ -obj-y += geode/ -obj-y += iris/ -obj-y += mrst/ -obj-y += olpc/ -obj-y += scx200/ -obj-y += sfi/ -obj-y += visws/ -obj-y += uv/ diff --git a/ANDROID_3.4.5/arch/x86/platform/ce4100/Makefile b/ANDROID_3.4.5/arch/x86/platform/ce4100/Makefile deleted file mode 100644 index 91fc9297..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/ce4100/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_X86_INTEL_CE) += ce4100.o diff --git a/ANDROID_3.4.5/arch/x86/platform/ce4100/ce4100.c b/ANDROID_3.4.5/arch/x86/platform/ce4100/ce4100.c deleted file mode 100644 index 4c61b521..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/ce4100/ce4100.c +++ /dev/null @@ -1,146 +0,0 @@ -/* - * Intel CE4100 platform specific setup code - * - * (C) Copyright 2010 Intel Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. - */ -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/irq.h> -#include <linux/module.h> -#include <linux/serial_reg.h> -#include <linux/serial_8250.h> - -#include <asm/ce4100.h> -#include <asm/prom.h> -#include <asm/setup.h> -#include <asm/i8259.h> -#include <asm/io.h> -#include <asm/io_apic.h> - -static int ce4100_i8042_detect(void) -{ - return 0; -} - -#ifdef CONFIG_SERIAL_8250 - -static unsigned int mem_serial_in(struct uart_port *p, int offset) -{ - offset = offset << p->regshift; - return readl(p->membase + offset); -} - -/* - * The UART Tx interrupts are not set under some conditions and therefore serial - * transmission hangs. This is a silicon issue and has not been root caused. The - * workaround for this silicon issue checks UART_LSR_THRE bit and UART_LSR_TEMT - * bit of LSR register in interrupt handler to see whether at least one of these - * two bits is set, if so then process the transmit request. If this workaround - * is not applied, then the serial transmission may hang. This workaround is for - * errata number 9 in Errata - B step. -*/ - -static unsigned int ce4100_mem_serial_in(struct uart_port *p, int offset) -{ - unsigned int ret, ier, lsr; - - if (offset == UART_IIR) { - offset = offset << p->regshift; - ret = readl(p->membase + offset); - if (ret & UART_IIR_NO_INT) { - /* see if the TX interrupt should have really set */ - ier = mem_serial_in(p, UART_IER); - /* see if the UART's XMIT interrupt is enabled */ - if (ier & UART_IER_THRI) { - lsr = mem_serial_in(p, UART_LSR); - /* now check to see if the UART should be - generating an interrupt (but isn't) */ - if (lsr & (UART_LSR_THRE | UART_LSR_TEMT)) - ret &= ~UART_IIR_NO_INT; - } - } - } else - ret = mem_serial_in(p, offset); - return ret; -} - -static void ce4100_mem_serial_out(struct uart_port *p, int offset, int value) -{ - offset = offset << p->regshift; - writel(value, p->membase + offset); -} - -static void ce4100_serial_fixup(int port, struct uart_port *up, - unsigned short *capabilites) -{ -#ifdef CONFIG_EARLY_PRINTK - /* - * Over ride the legacy port configuration that comes from - * asm/serial.h. Using the ioport driver then switching to the - * PCI memmaped driver hangs the IOAPIC - */ - if (up->iotype != UPIO_MEM32) { - up->uartclk = 14745600; - up->mapbase = 0xdffe0200; - set_fixmap_nocache(FIX_EARLYCON_MEM_BASE, - up->mapbase & PAGE_MASK); - up->membase = - (void __iomem *)__fix_to_virt(FIX_EARLYCON_MEM_BASE); - up->membase += up->mapbase & ~PAGE_MASK; - up->iotype = UPIO_MEM32; - up->regshift = 2; - } -#endif - up->iobase = 0; - up->serial_in = ce4100_mem_serial_in; - up->serial_out = ce4100_mem_serial_out; - - *capabilites |= (1 << 12); -} - -static __init void sdv_serial_fixup(void) -{ - serial8250_set_isa_configurator(ce4100_serial_fixup); -} - -#else -static inline void sdv_serial_fixup(void) {}; -#endif - -static void __init sdv_arch_setup(void) -{ - sdv_serial_fixup(); -} - -#ifdef CONFIG_X86_IO_APIC -static void __cpuinit sdv_pci_init(void) -{ - x86_of_pci_init(); - /* We can't set this earlier, because we need to calibrate the timer */ - legacy_pic = &null_legacy_pic; -} -#endif - -/* - * CE4100 specific x86_init function overrides and early setup - * calls. - */ -void __init x86_ce4100_early_setup(void) -{ - x86_init.oem.arch_setup = sdv_arch_setup; - x86_platform.i8042_detect = ce4100_i8042_detect; - x86_init.resources.probe_roms = x86_init_noop; - x86_init.mpparse.get_smp_config = x86_init_uint_noop; - x86_init.mpparse.find_smp_config = x86_init_noop; - x86_init.pci.init = ce4100_pci_init; - -#ifdef CONFIG_X86_IO_APIC - x86_init.pci.init_irq = sdv_pci_init; - x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc_nocheck; -#endif -} diff --git a/ANDROID_3.4.5/arch/x86/platform/ce4100/falconfalls.dts b/ANDROID_3.4.5/arch/x86/platform/ce4100/falconfalls.dts deleted file mode 100644 index ce874f87..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/ce4100/falconfalls.dts +++ /dev/null @@ -1,433 +0,0 @@ -/* - * CE4100 on Falcon Falls - * - * (c) Copyright 2010 Intel Corporation - * - * This program is free software; you can redistribute it and/or modify it - * under the terms of the GNU General Public License as published by the - * Free Software Foundation; version 2 of the License. - */ -/dts-v1/; -/ { - model = "intel,falconfalls"; - compatible = "intel,falconfalls"; - #address-cells = <1>; - #size-cells = <1>; - - cpus { - #address-cells = <1>; - #size-cells = <0>; - - cpu@0 { - device_type = "cpu"; - compatible = "intel,ce4100"; - reg = <0>; - lapic = <&lapic0>; - }; - }; - - soc@0 { - #address-cells = <1>; - #size-cells = <1>; - compatible = "intel,ce4100-cp"; - ranges; - - ioapic1: interrupt-controller@fec00000 { - #interrupt-cells = <2>; - compatible = "intel,ce4100-ioapic"; - interrupt-controller; - reg = <0xfec00000 0x1000>; - }; - - timer@fed00000 { - compatible = "intel,ce4100-hpet"; - reg = <0xfed00000 0x200>; - }; - - lapic0: interrupt-controller@fee00000 { - compatible = "intel,ce4100-lapic"; - reg = <0xfee00000 0x1000>; - }; - - pci@3fc { - #address-cells = <3>; - #size-cells = <2>; - compatible = "intel,ce4100-pci", "pci"; - device_type = "pci"; - bus-range = <0 0>; - ranges = <0x2000000 0 0xbffff000 0xbffff000 0 0x1000 - 0x2000000 0 0xdffe0000 0xdffe0000 0 0x1000 - 0x0000000 0 0x0 0x0 0 0x100>; - - /* Secondary IO-APIC */ - ioapic2: interrupt-controller@0,1 { - #interrupt-cells = <2>; - compatible = "intel,ce4100-ioapic"; - interrupt-controller; - reg = <0x100 0x0 0x0 0x0 0x0>; - assigned-addresses = <0x02000000 0x0 0xbffff000 0x0 0x1000>; - }; - - pci@1,0 { - #address-cells = <3>; - #size-cells = <2>; - compatible = "intel,ce4100-pci", "pci"; - device_type = "pci"; - bus-range = <1 1>; - reg = <0x0800 0x0 0x0 0x0 0x0>; - ranges = <0x2000000 0 0xdffe0000 0x2000000 0 0xdffe0000 0 0x1000>; - - interrupt-parent = <&ioapic2>; - - display@2,0 { - compatible = "pci8086,2e5b.2", - "pci8086,2e5b", - "pciclass038000", - "pciclass0380"; - - reg = <0x11000 0x0 0x0 0x0 0x0>; - interrupts = <0 1>; - }; - - multimedia@3,0 { - compatible = "pci8086,2e5c.2", - "pci8086,2e5c", - "pciclass048000", - "pciclass0480"; - - reg = <0x11800 0x0 0x0 0x0 0x0>; - interrupts = <2 1>; - }; - - multimedia@4,0 { - compatible = "pci8086,2e5d.2", - "pci8086,2e5d", - "pciclass048000", - "pciclass0480"; - - reg = <0x12000 0x0 0x0 0x0 0x0>; - interrupts = <4 1>; - }; - - multimedia@4,1 { - compatible = "pci8086,2e5e.2", - "pci8086,2e5e", - "pciclass048000", - "pciclass0480"; - - reg = <0x12100 0x0 0x0 0x0 0x0>; - interrupts = <5 1>; - }; - - sound@6,0 { - compatible = "pci8086,2e5f.2", - "pci8086,2e5f", - "pciclass040100", - "pciclass0401"; - - reg = <0x13000 0x0 0x0 0x0 0x0>; - interrupts = <6 1>; - }; - - sound@6,1 { - compatible = "pci8086,2e5f.2", - "pci8086,2e5f", - "pciclass040100", - "pciclass0401"; - - reg = <0x13100 0x0 0x0 0x0 0x0>; - interrupts = <7 1>; - }; - - sound@6,2 { - compatible = "pci8086,2e60.2", - "pci8086,2e60", - "pciclass040100", - "pciclass0401"; - - reg = <0x13200 0x0 0x0 0x0 0x0>; - interrupts = <8 1>; - }; - - display@8,0 { - compatible = "pci8086,2e61.2", - "pci8086,2e61", - "pciclass038000", - "pciclass0380"; - - reg = <0x14000 0x0 0x0 0x0 0x0>; - interrupts = <9 1>; - }; - - display@8,1 { - compatible = "pci8086,2e62.2", - "pci8086,2e62", - "pciclass038000", - "pciclass0380"; - - reg = <0x14100 0x0 0x0 0x0 0x0>; - interrupts = <10 1>; - }; - - multimedia@8,2 { - compatible = "pci8086,2e63.2", - "pci8086,2e63", - "pciclass048000", - "pciclass0480"; - - reg = <0x14200 0x0 0x0 0x0 0x0>; - interrupts = <11 1>; - }; - - entertainment-encryption@9,0 { - compatible = "pci8086,2e64.2", - "pci8086,2e64", - "pciclass101000", - "pciclass1010"; - - reg = <0x14800 0x0 0x0 0x0 0x0>; - interrupts = <12 1>; - }; - - localbus@a,0 { - compatible = "pci8086,2e65.2", - "pci8086,2e65", - "pciclassff0000", - "pciclassff00"; - - reg = <0x15000 0x0 0x0 0x0 0x0>; - }; - - serial@b,0 { - compatible = "pci8086,2e66.2", - "pci8086,2e66", - "pciclass070003", - "pciclass0700"; - - reg = <0x15800 0x0 0x0 0x0 0x0>; - interrupts = <14 1>; - }; - - pcigpio: gpio@b,1 { - #gpio-cells = <2>; - #interrupt-cells = <2>; - compatible = "pci8086,2e67.2", - "pci8086,2e67", - "pciclassff0000", - "pciclassff00"; - - reg = <0x15900 0x0 0x0 0x0 0x0>; - interrupts = <15 1>; - interrupt-controller; - gpio-controller; - intel,muxctl = <0>; - }; - - i2c-controller@b,2 { - #address-cells = <2>; - #size-cells = <1>; - compatible = "pci8086,2e68.2", - "pci8086,2e68", - "pciclass,ff0000", - "pciclass,ff00"; - - reg = <0x15a00 0x0 0x0 0x0 0x0>; - interrupts = <16 1>; - ranges = <0 0 0x02000000 0 0xdffe0500 0x100 - 1 0 0x02000000 0 0xdffe0600 0x100 - 2 0 0x02000000 0 0xdffe0700 0x100>; - - i2c@0 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "intel,ce4100-i2c-controller"; - reg = <0 0 0x100>; - }; - - i2c@1 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "intel,ce4100-i2c-controller"; - reg = <1 0 0x100>; - - gpio@26 { - #gpio-cells = <2>; - compatible = "ti,pcf8575"; - reg = <0x26>; - gpio-controller; - }; - }; - - i2c@2 { - #address-cells = <1>; - #size-cells = <0>; - compatible = "intel,ce4100-i2c-controller"; - reg = <2 0 0x100>; - - gpio@26 { - #gpio-cells = <2>; - compatible = "ti,pcf8575"; - reg = <0x26>; - gpio-controller; - }; - }; - }; - - smard-card@b,3 { - compatible = "pci8086,2e69.2", - "pci8086,2e69", - "pciclass070500", - "pciclass0705"; - - reg = <0x15b00 0x0 0x0 0x0 0x0>; - interrupts = <15 1>; - }; - - spi-controller@b,4 { - #address-cells = <1>; - #size-cells = <0>; - compatible = - "pci8086,2e6a.2", - "pci8086,2e6a", - "pciclass,ff0000", - "pciclass,ff00"; - - reg = <0x15c00 0x0 0x0 0x0 0x0>; - interrupts = <15 1>; - - dac@0 { - compatible = "ti,pcm1755"; - reg = <0>; - spi-max-frequency = <115200>; - }; - - dac@1 { - compatible = "ti,pcm1609a"; - reg = <1>; - spi-max-frequency = <115200>; - }; - - eeprom@2 { - compatible = "atmel,at93c46"; - reg = <2>; - spi-max-frequency = <115200>; - }; - }; - - multimedia@b,7 { - compatible = "pci8086,2e6d.2", - "pci8086,2e6d", - "pciclassff0000", - "pciclassff00"; - - reg = <0x15f00 0x0 0x0 0x0 0x0>; - }; - - ethernet@c,0 { - compatible = "pci8086,2e6e.2", - "pci8086,2e6e", - "pciclass020000", - "pciclass0200"; - - reg = <0x16000 0x0 0x0 0x0 0x0>; - interrupts = <21 1>; - }; - - clock@c,1 { - compatible = "pci8086,2e6f.2", - "pci8086,2e6f", - "pciclassff0000", - "pciclassff00"; - - reg = <0x16100 0x0 0x0 0x0 0x0>; - interrupts = <3 1>; - }; - - usb@d,0 { - compatible = "pci8086,2e70.2", - "pci8086,2e70", - "pciclass0c0320", - "pciclass0c03"; - - reg = <0x16800 0x0 0x0 0x0 0x0>; - interrupts = <22 1>; - }; - - usb@d,1 { - compatible = "pci8086,2e70.2", - "pci8086,2e70", - "pciclass0c0320", - "pciclass0c03"; - - reg = <0x16900 0x0 0x0 0x0 0x0>; - interrupts = <22 1>; - }; - - sata@e,0 { - compatible = "pci8086,2e71.0", - "pci8086,2e71", - "pciclass010601", - "pciclass0106"; - - reg = <0x17000 0x0 0x0 0x0 0x0>; - interrupts = <23 1>; - }; - - flash@f,0 { - compatible = "pci8086,701.1", - "pci8086,701", - "pciclass050100", - "pciclass0501"; - - reg = <0x17800 0x0 0x0 0x0 0x0>; - interrupts = <13 1>; - }; - - entertainment-encryption@10,0 { - compatible = "pci8086,702.1", - "pci8086,702", - "pciclass101000", - "pciclass1010"; - - reg = <0x18000 0x0 0x0 0x0 0x0>; - }; - - co-processor@11,0 { - compatible = "pci8086,703.1", - "pci8086,703", - "pciclass0b4000", - "pciclass0b40"; - - reg = <0x18800 0x0 0x0 0x0 0x0>; - interrupts = <1 1>; - }; - - multimedia@12,0 { - compatible = "pci8086,704.0", - "pci8086,704", - "pciclass048000", - "pciclass0480"; - - reg = <0x19000 0x0 0x0 0x0 0x0>; - }; - }; - - isa@1f,0 { - #address-cells = <2>; - #size-cells = <1>; - compatible = "isa"; - reg = <0xf800 0x0 0x0 0x0 0x0>; - ranges = <1 0 0 0 0 0x100>; - - rtc@70 { - compatible = "intel,ce4100-rtc", "motorola,mc146818"; - interrupts = <8 3>; - interrupt-parent = <&ioapic1>; - ctrl-reg = <2>; - freq-reg = <0x26>; - reg = <1 0x70 2>; - }; - }; - }; - }; -}; diff --git a/ANDROID_3.4.5/arch/x86/platform/efi/Makefile b/ANDROID_3.4.5/arch/x86/platform/efi/Makefile deleted file mode 100644 index 73b8be0f..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/efi/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_EFI) += efi.o efi_$(BITS).o efi_stub_$(BITS).o diff --git a/ANDROID_3.4.5/arch/x86/platform/efi/efi.c b/ANDROID_3.4.5/arch/x86/platform/efi/efi.c deleted file mode 100644 index 92660eda..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/efi/efi.c +++ /dev/null @@ -1,946 +0,0 @@ -/* - * Common EFI (Extensible Firmware Interface) support functions - * Based on Extensible Firmware Interface Specification version 1.0 - * - * Copyright (C) 1999 VA Linux Systems - * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> - * Copyright (C) 1999-2002 Hewlett-Packard Co. - * David Mosberger-Tang <davidm@hpl.hp.com> - * Stephane Eranian <eranian@hpl.hp.com> - * Copyright (C) 2005-2008 Intel Co. - * Fenghua Yu <fenghua.yu@intel.com> - * Bibo Mao <bibo.mao@intel.com> - * Chandramouli Narayanan <mouli@linux.intel.com> - * Huang Ying <ying.huang@intel.com> - * - * Copied from efi_32.c to eliminate the duplicated code between EFI - * 32/64 support code. --ying 2007-10-26 - * - * All EFI Runtime Services are not implemented yet as EFI only - * supports physical mode addressing on SoftSDV. This is to be fixed - * in a future version. --drummond 1999-07-20 - * - * Implemented EFI runtime services and virtual mode calls. --davidm - * - * Goutham Rao: <goutham.rao@intel.com> - * Skip non-WB memory and ignore empty memory ranges. - */ - -#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/efi.h> -#include <linux/export.h> -#include <linux/bootmem.h> -#include <linux/memblock.h> -#include <linux/spinlock.h> -#include <linux/uaccess.h> -#include <linux/time.h> -#include <linux/io.h> -#include <linux/reboot.h> -#include <linux/bcd.h> - -#include <asm/setup.h> -#include <asm/efi.h> -#include <asm/time.h> -#include <asm/cacheflush.h> -#include <asm/tlbflush.h> -#include <asm/x86_init.h> - -#define EFI_DEBUG 1 - -int efi_enabled; -EXPORT_SYMBOL(efi_enabled); - -struct efi __read_mostly efi = { - .mps = EFI_INVALID_TABLE_ADDR, - .acpi = EFI_INVALID_TABLE_ADDR, - .acpi20 = EFI_INVALID_TABLE_ADDR, - .smbios = EFI_INVALID_TABLE_ADDR, - .sal_systab = EFI_INVALID_TABLE_ADDR, - .boot_info = EFI_INVALID_TABLE_ADDR, - .hcdp = EFI_INVALID_TABLE_ADDR, - .uga = EFI_INVALID_TABLE_ADDR, - .uv_systab = EFI_INVALID_TABLE_ADDR, -}; -EXPORT_SYMBOL(efi); - -struct efi_memory_map memmap; - -bool efi_64bit; -static bool efi_native; - -static struct efi efi_phys __initdata; -static efi_system_table_t efi_systab __initdata; - -static int __init setup_noefi(char *arg) -{ - efi_enabled = 0; - return 0; -} -early_param("noefi", setup_noefi); - -int add_efi_memmap; -EXPORT_SYMBOL(add_efi_memmap); - -static int __init setup_add_efi_memmap(char *arg) -{ - add_efi_memmap = 1; - return 0; -} -early_param("add_efi_memmap", setup_add_efi_memmap); - - -static efi_status_t virt_efi_get_time(efi_time_t *tm, efi_time_cap_t *tc) -{ - unsigned long flags; - efi_status_t status; - - spin_lock_irqsave(&rtc_lock, flags); - status = efi_call_virt2(get_time, tm, tc); - spin_unlock_irqrestore(&rtc_lock, flags); - return status; -} - -static efi_status_t virt_efi_set_time(efi_time_t *tm) -{ - unsigned long flags; - efi_status_t status; - - spin_lock_irqsave(&rtc_lock, flags); - status = efi_call_virt1(set_time, tm); - spin_unlock_irqrestore(&rtc_lock, flags); - return status; -} - -static efi_status_t virt_efi_get_wakeup_time(efi_bool_t *enabled, - efi_bool_t *pending, - efi_time_t *tm) -{ - unsigned long flags; - efi_status_t status; - - spin_lock_irqsave(&rtc_lock, flags); - status = efi_call_virt3(get_wakeup_time, - enabled, pending, tm); - spin_unlock_irqrestore(&rtc_lock, flags); - return status; -} - -static efi_status_t virt_efi_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm) -{ - unsigned long flags; - efi_status_t status; - - spin_lock_irqsave(&rtc_lock, flags); - status = efi_call_virt2(set_wakeup_time, - enabled, tm); - spin_unlock_irqrestore(&rtc_lock, flags); - return status; -} - -static efi_status_t virt_efi_get_variable(efi_char16_t *name, - efi_guid_t *vendor, - u32 *attr, - unsigned long *data_size, - void *data) -{ - return efi_call_virt5(get_variable, - name, vendor, attr, - data_size, data); -} - -static efi_status_t virt_efi_get_next_variable(unsigned long *name_size, - efi_char16_t *name, - efi_guid_t *vendor) -{ - return efi_call_virt3(get_next_variable, - name_size, name, vendor); -} - -static efi_status_t virt_efi_set_variable(efi_char16_t *name, - efi_guid_t *vendor, - u32 attr, - unsigned long data_size, - void *data) -{ - return efi_call_virt5(set_variable, - name, vendor, attr, - data_size, data); -} - -static efi_status_t virt_efi_query_variable_info(u32 attr, - u64 *storage_space, - u64 *remaining_space, - u64 *max_variable_size) -{ - if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION) - return EFI_UNSUPPORTED; - - return efi_call_virt4(query_variable_info, attr, storage_space, - remaining_space, max_variable_size); -} - -static efi_status_t virt_efi_get_next_high_mono_count(u32 *count) -{ - return efi_call_virt1(get_next_high_mono_count, count); -} - -static void virt_efi_reset_system(int reset_type, - efi_status_t status, - unsigned long data_size, - efi_char16_t *data) -{ - efi_call_virt4(reset_system, reset_type, status, - data_size, data); -} - -static efi_status_t virt_efi_update_capsule(efi_capsule_header_t **capsules, - unsigned long count, - unsigned long sg_list) -{ - if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION) - return EFI_UNSUPPORTED; - - return efi_call_virt3(update_capsule, capsules, count, sg_list); -} - -static efi_status_t virt_efi_query_capsule_caps(efi_capsule_header_t **capsules, - unsigned long count, - u64 *max_size, - int *reset_type) -{ - if (efi.runtime_version < EFI_2_00_SYSTEM_TABLE_REVISION) - return EFI_UNSUPPORTED; - - return efi_call_virt4(query_capsule_caps, capsules, count, max_size, - reset_type); -} - -static efi_status_t __init phys_efi_set_virtual_address_map( - unsigned long memory_map_size, - unsigned long descriptor_size, - u32 descriptor_version, - efi_memory_desc_t *virtual_map) -{ - efi_status_t status; - - efi_call_phys_prelog(); - status = efi_call_phys4(efi_phys.set_virtual_address_map, - memory_map_size, descriptor_size, - descriptor_version, virtual_map); - efi_call_phys_epilog(); - return status; -} - -static efi_status_t __init phys_efi_get_time(efi_time_t *tm, - efi_time_cap_t *tc) -{ - unsigned long flags; - efi_status_t status; - - spin_lock_irqsave(&rtc_lock, flags); - efi_call_phys_prelog(); - status = efi_call_phys2(efi_phys.get_time, virt_to_phys(tm), - virt_to_phys(tc)); - efi_call_phys_epilog(); - spin_unlock_irqrestore(&rtc_lock, flags); - return status; -} - -int efi_set_rtc_mmss(unsigned long nowtime) -{ - int real_seconds, real_minutes; - efi_status_t status; - efi_time_t eft; - efi_time_cap_t cap; - - status = efi.get_time(&eft, &cap); - if (status != EFI_SUCCESS) { - pr_err("Oops: efitime: can't read time!\n"); - return -1; - } - - real_seconds = nowtime % 60; - real_minutes = nowtime / 60; - if (((abs(real_minutes - eft.minute) + 15)/30) & 1) - real_minutes += 30; - real_minutes %= 60; - eft.minute = real_minutes; - eft.second = real_seconds; - - status = efi.set_time(&eft); - if (status != EFI_SUCCESS) { - pr_err("Oops: efitime: can't write time!\n"); - return -1; - } - return 0; -} - -unsigned long efi_get_time(void) -{ - efi_status_t status; - efi_time_t eft; - efi_time_cap_t cap; - - status = efi.get_time(&eft, &cap); - if (status != EFI_SUCCESS) - pr_err("Oops: efitime: can't read time!\n"); - - return mktime(eft.year, eft.month, eft.day, eft.hour, - eft.minute, eft.second); -} - -/* - * Tell the kernel about the EFI memory map. This might include - * more than the max 128 entries that can fit in the e820 legacy - * (zeropage) memory map. - */ - -static void __init do_add_efi_memmap(void) -{ - void *p; - - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - efi_memory_desc_t *md = p; - unsigned long long start = md->phys_addr; - unsigned long long size = md->num_pages << EFI_PAGE_SHIFT; - int e820_type; - - switch (md->type) { - case EFI_LOADER_CODE: - case EFI_LOADER_DATA: - case EFI_BOOT_SERVICES_CODE: - case EFI_BOOT_SERVICES_DATA: - case EFI_CONVENTIONAL_MEMORY: - if (md->attribute & EFI_MEMORY_WB) - e820_type = E820_RAM; - else - e820_type = E820_RESERVED; - break; - case EFI_ACPI_RECLAIM_MEMORY: - e820_type = E820_ACPI; - break; - case EFI_ACPI_MEMORY_NVS: - e820_type = E820_NVS; - break; - case EFI_UNUSABLE_MEMORY: - e820_type = E820_UNUSABLE; - break; - default: - /* - * EFI_RESERVED_TYPE EFI_RUNTIME_SERVICES_CODE - * EFI_RUNTIME_SERVICES_DATA EFI_MEMORY_MAPPED_IO - * EFI_MEMORY_MAPPED_IO_PORT_SPACE EFI_PAL_CODE - */ - e820_type = E820_RESERVED; - break; - } - e820_add_region(start, size, e820_type); - } - sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); -} - -int __init efi_memblock_x86_reserve_range(void) -{ - unsigned long pmap; - -#ifdef CONFIG_X86_32 - /* Can't handle data above 4GB at this time */ - if (boot_params.efi_info.efi_memmap_hi) { - pr_err("Memory map is above 4GB, disabling EFI.\n"); - return -EINVAL; - } - pmap = boot_params.efi_info.efi_memmap; -#else - pmap = (boot_params.efi_info.efi_memmap | - ((__u64)boot_params.efi_info.efi_memmap_hi<<32)); -#endif - memmap.phys_map = (void *)pmap; - memmap.nr_map = boot_params.efi_info.efi_memmap_size / - boot_params.efi_info.efi_memdesc_size; - memmap.desc_version = boot_params.efi_info.efi_memdesc_version; - memmap.desc_size = boot_params.efi_info.efi_memdesc_size; - memblock_reserve(pmap, memmap.nr_map * memmap.desc_size); - - return 0; -} - -#if EFI_DEBUG -static void __init print_efi_memmap(void) -{ - efi_memory_desc_t *md; - void *p; - int i; - - for (p = memmap.map, i = 0; - p < memmap.map_end; - p += memmap.desc_size, i++) { - md = p; - pr_info("mem%02u: type=%u, attr=0x%llx, " - "range=[0x%016llx-0x%016llx) (%lluMB)\n", - i, md->type, md->attribute, md->phys_addr, - md->phys_addr + (md->num_pages << EFI_PAGE_SHIFT), - (md->num_pages >> (20 - EFI_PAGE_SHIFT))); - } -} -#endif /* EFI_DEBUG */ - -void __init efi_reserve_boot_services(void) -{ - void *p; - - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - efi_memory_desc_t *md = p; - u64 start = md->phys_addr; - u64 size = md->num_pages << EFI_PAGE_SHIFT; - - if (md->type != EFI_BOOT_SERVICES_CODE && - md->type != EFI_BOOT_SERVICES_DATA) - continue; - /* Only reserve where possible: - * - Not within any already allocated areas - * - Not over any memory area (really needed, if above?) - * - Not within any part of the kernel - * - Not the bios reserved area - */ - if ((start+size >= virt_to_phys(_text) - && start <= virt_to_phys(_end)) || - !e820_all_mapped(start, start+size, E820_RAM) || - memblock_is_region_reserved(start, size)) { - /* Could not reserve, skip it */ - md->num_pages = 0; - memblock_dbg("Could not reserve boot range " - "[0x%010llx-0x%010llx]\n", - start, start+size-1); - } else - memblock_reserve(start, size); - } -} - -static void __init efi_free_boot_services(void) -{ - void *p; - - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - efi_memory_desc_t *md = p; - unsigned long long start = md->phys_addr; - unsigned long long size = md->num_pages << EFI_PAGE_SHIFT; - - if (md->type != EFI_BOOT_SERVICES_CODE && - md->type != EFI_BOOT_SERVICES_DATA) - continue; - - /* Could not reserve boot area */ - if (!size) - continue; - - free_bootmem_late(start, size); - } -} - -static int __init efi_systab_init(void *phys) -{ - if (efi_64bit) { - efi_system_table_64_t *systab64; - u64 tmp = 0; - - systab64 = early_ioremap((unsigned long)phys, - sizeof(*systab64)); - if (systab64 == NULL) { - pr_err("Couldn't map the system table!\n"); - return -ENOMEM; - } - - efi_systab.hdr = systab64->hdr; - efi_systab.fw_vendor = systab64->fw_vendor; - tmp |= systab64->fw_vendor; - efi_systab.fw_revision = systab64->fw_revision; - efi_systab.con_in_handle = systab64->con_in_handle; - tmp |= systab64->con_in_handle; - efi_systab.con_in = systab64->con_in; - tmp |= systab64->con_in; - efi_systab.con_out_handle = systab64->con_out_handle; - tmp |= systab64->con_out_handle; - efi_systab.con_out = systab64->con_out; - tmp |= systab64->con_out; - efi_systab.stderr_handle = systab64->stderr_handle; - tmp |= systab64->stderr_handle; - efi_systab.stderr = systab64->stderr; - tmp |= systab64->stderr; - efi_systab.runtime = (void *)(unsigned long)systab64->runtime; - tmp |= systab64->runtime; - efi_systab.boottime = (void *)(unsigned long)systab64->boottime; - tmp |= systab64->boottime; - efi_systab.nr_tables = systab64->nr_tables; - efi_systab.tables = systab64->tables; - tmp |= systab64->tables; - - early_iounmap(systab64, sizeof(*systab64)); -#ifdef CONFIG_X86_32 - if (tmp >> 32) { - pr_err("EFI data located above 4GB, disabling EFI.\n"); - return -EINVAL; - } -#endif - } else { - efi_system_table_32_t *systab32; - - systab32 = early_ioremap((unsigned long)phys, - sizeof(*systab32)); - if (systab32 == NULL) { - pr_err("Couldn't map the system table!\n"); - return -ENOMEM; - } - - efi_systab.hdr = systab32->hdr; - efi_systab.fw_vendor = systab32->fw_vendor; - efi_systab.fw_revision = systab32->fw_revision; - efi_systab.con_in_handle = systab32->con_in_handle; - efi_systab.con_in = systab32->con_in; - efi_systab.con_out_handle = systab32->con_out_handle; - efi_systab.con_out = systab32->con_out; - efi_systab.stderr_handle = systab32->stderr_handle; - efi_systab.stderr = systab32->stderr; - efi_systab.runtime = (void *)(unsigned long)systab32->runtime; - efi_systab.boottime = (void *)(unsigned long)systab32->boottime; - efi_systab.nr_tables = systab32->nr_tables; - efi_systab.tables = systab32->tables; - - early_iounmap(systab32, sizeof(*systab32)); - } - - efi.systab = &efi_systab; - - /* - * Verify the EFI Table - */ - if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) { - pr_err("System table signature incorrect!\n"); - return -EINVAL; - } - if ((efi.systab->hdr.revision >> 16) == 0) - pr_err("Warning: System table version " - "%d.%02d, expected 1.00 or greater!\n", - efi.systab->hdr.revision >> 16, - efi.systab->hdr.revision & 0xffff); - - return 0; -} - -static int __init efi_config_init(u64 tables, int nr_tables) -{ - void *config_tables, *tablep; - int i, sz; - - if (efi_64bit) - sz = sizeof(efi_config_table_64_t); - else - sz = sizeof(efi_config_table_32_t); - - /* - * Let's see what config tables the firmware passed to us. - */ - config_tables = early_ioremap(tables, nr_tables * sz); - if (config_tables == NULL) { - pr_err("Could not map Configuration table!\n"); - return -ENOMEM; - } - - tablep = config_tables; - pr_info(""); - for (i = 0; i < efi.systab->nr_tables; i++) { - efi_guid_t guid; - unsigned long table; - - if (efi_64bit) { - u64 table64; - guid = ((efi_config_table_64_t *)tablep)->guid; - table64 = ((efi_config_table_64_t *)tablep)->table; - table = table64; -#ifdef CONFIG_X86_32 - if (table64 >> 32) { - pr_cont("\n"); - pr_err("Table located above 4GB, disabling EFI.\n"); - early_iounmap(config_tables, - efi.systab->nr_tables * sz); - return -EINVAL; - } -#endif - } else { - guid = ((efi_config_table_32_t *)tablep)->guid; - table = ((efi_config_table_32_t *)tablep)->table; - } - if (!efi_guidcmp(guid, MPS_TABLE_GUID)) { - efi.mps = table; - pr_cont(" MPS=0x%lx ", table); - } else if (!efi_guidcmp(guid, ACPI_20_TABLE_GUID)) { - efi.acpi20 = table; - pr_cont(" ACPI 2.0=0x%lx ", table); - } else if (!efi_guidcmp(guid, ACPI_TABLE_GUID)) { - efi.acpi = table; - pr_cont(" ACPI=0x%lx ", table); - } else if (!efi_guidcmp(guid, SMBIOS_TABLE_GUID)) { - efi.smbios = table; - pr_cont(" SMBIOS=0x%lx ", table); -#ifdef CONFIG_X86_UV - } else if (!efi_guidcmp(guid, UV_SYSTEM_TABLE_GUID)) { - efi.uv_systab = table; - pr_cont(" UVsystab=0x%lx ", table); -#endif - } else if (!efi_guidcmp(guid, HCDP_TABLE_GUID)) { - efi.hcdp = table; - pr_cont(" HCDP=0x%lx ", table); - } else if (!efi_guidcmp(guid, UGA_IO_PROTOCOL_GUID)) { - efi.uga = table; - pr_cont(" UGA=0x%lx ", table); - } - tablep += sz; - } - pr_cont("\n"); - early_iounmap(config_tables, efi.systab->nr_tables * sz); - return 0; -} - -static int __init efi_runtime_init(void) -{ - efi_runtime_services_t *runtime; - - /* - * Check out the runtime services table. We need to map - * the runtime services table so that we can grab the physical - * address of several of the EFI runtime functions, needed to - * set the firmware into virtual mode. - */ - runtime = early_ioremap((unsigned long)efi.systab->runtime, - sizeof(efi_runtime_services_t)); - if (!runtime) { - pr_err("Could not map the runtime service table!\n"); - return -ENOMEM; - } - /* - * We will only need *early* access to the following - * two EFI runtime services before set_virtual_address_map - * is invoked. - */ - efi_phys.get_time = (efi_get_time_t *)runtime->get_time; - efi_phys.set_virtual_address_map = - (efi_set_virtual_address_map_t *) - runtime->set_virtual_address_map; - /* - * Make efi_get_time can be called before entering - * virtual mode. - */ - efi.get_time = phys_efi_get_time; - early_iounmap(runtime, sizeof(efi_runtime_services_t)); - - return 0; -} - -static int __init efi_memmap_init(void) -{ - /* Map the EFI memory map */ - memmap.map = early_ioremap((unsigned long)memmap.phys_map, - memmap.nr_map * memmap.desc_size); - if (memmap.map == NULL) { - pr_err("Could not map the memory map!\n"); - return -ENOMEM; - } - memmap.map_end = memmap.map + (memmap.nr_map * memmap.desc_size); - - if (add_efi_memmap) - do_add_efi_memmap(); - - return 0; -} - -void __init efi_init(void) -{ - efi_char16_t *c16; - char vendor[100] = "unknown"; - int i = 0; - void *tmp; - -#ifdef CONFIG_X86_32 - if (boot_params.efi_info.efi_systab_hi || - boot_params.efi_info.efi_memmap_hi) { - pr_info("Table located above 4GB, disabling EFI.\n"); - efi_enabled = 0; - return; - } - efi_phys.systab = (efi_system_table_t *)boot_params.efi_info.efi_systab; - efi_native = !efi_64bit; -#else - efi_phys.systab = (efi_system_table_t *) - (boot_params.efi_info.efi_systab | - ((__u64)boot_params.efi_info.efi_systab_hi<<32)); - efi_native = efi_64bit; -#endif - - if (efi_systab_init(efi_phys.systab)) { - efi_enabled = 0; - return; - } - - /* - * Show what we know for posterity - */ - c16 = tmp = early_ioremap(efi.systab->fw_vendor, 2); - if (c16) { - for (i = 0; i < sizeof(vendor) - 1 && *c16; ++i) - vendor[i] = *c16++; - vendor[i] = '\0'; - } else - pr_err("Could not map the firmware vendor!\n"); - early_iounmap(tmp, 2); - - pr_info("EFI v%u.%.02u by %s\n", - efi.systab->hdr.revision >> 16, - efi.systab->hdr.revision & 0xffff, vendor); - - if (efi_config_init(efi.systab->tables, efi.systab->nr_tables)) { - efi_enabled = 0; - return; - } - - /* - * Note: We currently don't support runtime services on an EFI - * that doesn't match the kernel 32/64-bit mode. - */ - - if (!efi_native) - pr_info("No EFI runtime due to 32/64-bit mismatch with kernel\n"); - else if (efi_runtime_init()) { - efi_enabled = 0; - return; - } - - if (efi_memmap_init()) { - efi_enabled = 0; - return; - } -#ifdef CONFIG_X86_32 - if (efi_native) { - x86_platform.get_wallclock = efi_get_time; - x86_platform.set_wallclock = efi_set_rtc_mmss; - } -#endif - -#if EFI_DEBUG - print_efi_memmap(); -#endif -} - -void __init efi_set_executable(efi_memory_desc_t *md, bool executable) -{ - u64 addr, npages; - - addr = md->virt_addr; - npages = md->num_pages; - - memrange_efi_to_native(&addr, &npages); - - if (executable) - set_memory_x(addr, npages); - else - set_memory_nx(addr, npages); -} - -static void __init runtime_code_page_mkexec(void) -{ - efi_memory_desc_t *md; - void *p; - - /* Make EFI runtime service code area executable */ - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - md = p; - - if (md->type != EFI_RUNTIME_SERVICES_CODE) - continue; - - efi_set_executable(md, true); - } -} - -/* - * This function will switch the EFI runtime services to virtual mode. - * Essentially, look through the EFI memmap and map every region that - * has the runtime attribute bit set in its memory descriptor and update - * that memory descriptor with the virtual address obtained from ioremap(). - * This enables the runtime services to be called without having to - * thunk back into physical mode for every invocation. - */ -void __init efi_enter_virtual_mode(void) -{ - efi_memory_desc_t *md, *prev_md = NULL; - efi_status_t status; - unsigned long size; - u64 end, systab, addr, npages, end_pfn; - void *p, *va, *new_memmap = NULL; - int count = 0; - - efi.systab = NULL; - - /* - * We don't do virtual mode, since we don't do runtime services, on - * non-native EFI - */ - - if (!efi_native) - goto out; - - /* Merge contiguous regions of the same type and attribute */ - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - u64 prev_size; - md = p; - - if (!prev_md) { - prev_md = md; - continue; - } - - if (prev_md->type != md->type || - prev_md->attribute != md->attribute) { - prev_md = md; - continue; - } - - prev_size = prev_md->num_pages << EFI_PAGE_SHIFT; - - if (md->phys_addr == (prev_md->phys_addr + prev_size)) { - prev_md->num_pages += md->num_pages; - md->type = EFI_RESERVED_TYPE; - md->attribute = 0; - continue; - } - prev_md = md; - } - - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - md = p; - if (!(md->attribute & EFI_MEMORY_RUNTIME) && - md->type != EFI_BOOT_SERVICES_CODE && - md->type != EFI_BOOT_SERVICES_DATA) - continue; - - size = md->num_pages << EFI_PAGE_SHIFT; - end = md->phys_addr + size; - - end_pfn = PFN_UP(end); - if (end_pfn <= max_low_pfn_mapped - || (end_pfn > (1UL << (32 - PAGE_SHIFT)) - && end_pfn <= max_pfn_mapped)) - va = __va(md->phys_addr); - else - va = efi_ioremap(md->phys_addr, size, md->type); - - md->virt_addr = (u64) (unsigned long) va; - - if (!va) { - pr_err("ioremap of 0x%llX failed!\n", - (unsigned long long)md->phys_addr); - continue; - } - - if (!(md->attribute & EFI_MEMORY_WB)) { - addr = md->virt_addr; - npages = md->num_pages; - memrange_efi_to_native(&addr, &npages); - set_memory_uc(addr, npages); - } - - systab = (u64) (unsigned long) efi_phys.systab; - if (md->phys_addr <= systab && systab < end) { - systab += md->virt_addr - md->phys_addr; - efi.systab = (efi_system_table_t *) (unsigned long) systab; - } - new_memmap = krealloc(new_memmap, - (count + 1) * memmap.desc_size, - GFP_KERNEL); - memcpy(new_memmap + (count * memmap.desc_size), md, - memmap.desc_size); - count++; - } - - BUG_ON(!efi.systab); - - status = phys_efi_set_virtual_address_map( - memmap.desc_size * count, - memmap.desc_size, - memmap.desc_version, - (efi_memory_desc_t *)__pa(new_memmap)); - - if (status != EFI_SUCCESS) { - pr_alert("Unable to switch EFI into virtual mode " - "(status=%lx)!\n", status); - panic("EFI call to SetVirtualAddressMap() failed!"); - } - - /* - * Thankfully, it does seem that no runtime services other than - * SetVirtualAddressMap() will touch boot services code, so we can - * get rid of it all at this point - */ - efi_free_boot_services(); - - /* - * Now that EFI is in virtual mode, update the function - * pointers in the runtime service table to the new virtual addresses. - * - * Call EFI services through wrapper functions. - */ - efi.get_time = virt_efi_get_time; - efi.set_time = virt_efi_set_time; - efi.get_wakeup_time = virt_efi_get_wakeup_time; - efi.set_wakeup_time = virt_efi_set_wakeup_time; - efi.get_variable = virt_efi_get_variable; - efi.get_next_variable = virt_efi_get_next_variable; - efi.set_variable = virt_efi_set_variable; - efi.get_next_high_mono_count = virt_efi_get_next_high_mono_count; - efi.reset_system = virt_efi_reset_system; - efi.set_virtual_address_map = NULL; - efi.query_variable_info = virt_efi_query_variable_info; - efi.update_capsule = virt_efi_update_capsule; - efi.query_capsule_caps = virt_efi_query_capsule_caps; - if (__supported_pte_mask & _PAGE_NX) - runtime_code_page_mkexec(); - -out: - early_iounmap(memmap.map, memmap.nr_map * memmap.desc_size); - memmap.map = NULL; - kfree(new_memmap); -} - -/* - * Convenience functions to obtain memory types and attributes - */ -u32 efi_mem_type(unsigned long phys_addr) -{ - efi_memory_desc_t *md; - void *p; - - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - md = p; - if ((md->phys_addr <= phys_addr) && - (phys_addr < (md->phys_addr + - (md->num_pages << EFI_PAGE_SHIFT)))) - return md->type; - } - return 0; -} - -u64 efi_mem_attributes(unsigned long phys_addr) -{ - efi_memory_desc_t *md; - void *p; - - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - md = p; - if ((md->phys_addr <= phys_addr) && - (phys_addr < (md->phys_addr + - (md->num_pages << EFI_PAGE_SHIFT)))) - return md->attribute; - } - return 0; -} diff --git a/ANDROID_3.4.5/arch/x86/platform/efi/efi_32.c b/ANDROID_3.4.5/arch/x86/platform/efi/efi_32.c deleted file mode 100644 index 40e44694..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/efi/efi_32.c +++ /dev/null @@ -1,69 +0,0 @@ -/* - * Extensible Firmware Interface - * - * Based on Extensible Firmware Interface Specification version 1.0 - * - * Copyright (C) 1999 VA Linux Systems - * Copyright (C) 1999 Walt Drummond <drummond@valinux.com> - * Copyright (C) 1999-2002 Hewlett-Packard Co. - * David Mosberger-Tang <davidm@hpl.hp.com> - * Stephane Eranian <eranian@hpl.hp.com> - * - * All EFI Runtime Services are not implemented yet as EFI only - * supports physical mode addressing on SoftSDV. This is to be fixed - * in a future version. --drummond 1999-07-20 - * - * Implemented EFI runtime services and virtual mode calls. --davidm - * - * Goutham Rao: <goutham.rao@intel.com> - * Skip non-WB memory and ignore empty memory ranges. - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/ioport.h> -#include <linux/efi.h> - -#include <asm/io.h> -#include <asm/desc.h> -#include <asm/page.h> -#include <asm/pgtable.h> -#include <asm/tlbflush.h> -#include <asm/efi.h> - -/* - * To make EFI call EFI runtime service in physical addressing mode we need - * prelog/epilog before/after the invocation to disable interrupt, to - * claim EFI runtime service handler exclusively and to duplicate a memory in - * low memory space say 0 - 3G. - */ - -static unsigned long efi_rt_eflags; - -void efi_call_phys_prelog(void) -{ - struct desc_ptr gdt_descr; - - local_irq_save(efi_rt_eflags); - - load_cr3(initial_page_table); - __flush_tlb_all(); - - gdt_descr.address = __pa(get_cpu_gdt_table(0)); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); -} - -void efi_call_phys_epilog(void) -{ - struct desc_ptr gdt_descr; - - gdt_descr.address = (unsigned long)get_cpu_gdt_table(0); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - - load_cr3(swapper_pg_dir); - __flush_tlb_all(); - - local_irq_restore(efi_rt_eflags); -} diff --git a/ANDROID_3.4.5/arch/x86/platform/efi/efi_64.c b/ANDROID_3.4.5/arch/x86/platform/efi/efi_64.c deleted file mode 100644 index ac3aa54e..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/efi/efi_64.c +++ /dev/null @@ -1,99 +0,0 @@ -/* - * x86_64 specific EFI support functions - * Based on Extensible Firmware Interface Specification version 1.0 - * - * Copyright (C) 2005-2008 Intel Co. - * Fenghua Yu <fenghua.yu@intel.com> - * Bibo Mao <bibo.mao@intel.com> - * Chandramouli Narayanan <mouli@linux.intel.com> - * Huang Ying <ying.huang@intel.com> - * - * Code to convert EFI to E820 map has been implemented in elilo bootloader - * based on a EFI patch by Edgar Hucek. Based on the E820 map, the page table - * is setup appropriately for EFI runtime code. - * - mouli 06/14/2007. - * - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/types.h> -#include <linux/spinlock.h> -#include <linux/bootmem.h> -#include <linux/ioport.h> -#include <linux/module.h> -#include <linux/efi.h> -#include <linux/uaccess.h> -#include <linux/io.h> -#include <linux/reboot.h> - -#include <asm/setup.h> -#include <asm/page.h> -#include <asm/e820.h> -#include <asm/pgtable.h> -#include <asm/tlbflush.h> -#include <asm/proto.h> -#include <asm/efi.h> -#include <asm/cacheflush.h> -#include <asm/fixmap.h> - -static pgd_t save_pgd __initdata; -static unsigned long efi_flags __initdata; - -static void __init early_code_mapping_set_exec(int executable) -{ - efi_memory_desc_t *md; - void *p; - - if (!(__supported_pte_mask & _PAGE_NX)) - return; - - /* Make EFI service code area executable */ - for (p = memmap.map; p < memmap.map_end; p += memmap.desc_size) { - md = p; - if (md->type == EFI_RUNTIME_SERVICES_CODE || - md->type == EFI_BOOT_SERVICES_CODE) - efi_set_executable(md, executable); - } -} - -void __init efi_call_phys_prelog(void) -{ - unsigned long vaddress; - - early_code_mapping_set_exec(1); - local_irq_save(efi_flags); - vaddress = (unsigned long)__va(0x0UL); - save_pgd = *pgd_offset_k(0x0UL); - set_pgd(pgd_offset_k(0x0UL), *pgd_offset_k(vaddress)); - __flush_tlb_all(); -} - -void __init efi_call_phys_epilog(void) -{ - /* - * After the lock is released, the original page table is restored. - */ - set_pgd(pgd_offset_k(0x0UL), save_pgd); - __flush_tlb_all(); - local_irq_restore(efi_flags); - early_code_mapping_set_exec(0); -} - -void __iomem *__init efi_ioremap(unsigned long phys_addr, unsigned long size, - u32 type) -{ - unsigned long last_map_pfn; - - if (type == EFI_MEMORY_MAPPED_IO) - return ioremap(phys_addr, size); - - last_map_pfn = init_memory_mapping(phys_addr, phys_addr + size); - if ((last_map_pfn << PAGE_SHIFT) < phys_addr + size) { - unsigned long top = last_map_pfn << PAGE_SHIFT; - efi_ioremap(top, size - (top - phys_addr), type); - } - - return (void __iomem *)__va(phys_addr); -} diff --git a/ANDROID_3.4.5/arch/x86/platform/efi/efi_stub_32.S b/ANDROID_3.4.5/arch/x86/platform/efi/efi_stub_32.S deleted file mode 100644 index fbe66e62..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/efi/efi_stub_32.S +++ /dev/null @@ -1,123 +0,0 @@ -/* - * EFI call stub for IA32. - * - * This stub allows us to make EFI calls in physical mode with interrupts - * turned off. - */ - -#include <linux/linkage.h> -#include <asm/page_types.h> - -/* - * efi_call_phys(void *, ...) is a function with variable parameters. - * All the callers of this function assure that all the parameters are 4-bytes. - */ - -/* - * In gcc calling convention, EBX, ESP, EBP, ESI and EDI are all callee save. - * So we'd better save all of them at the beginning of this function and restore - * at the end no matter how many we use, because we can not assure EFI runtime - * service functions will comply with gcc calling convention, too. - */ - -.text -ENTRY(efi_call_phys) - /* - * 0. The function can only be called in Linux kernel. So CS has been - * set to 0x0010, DS and SS have been set to 0x0018. In EFI, I found - * the values of these registers are the same. And, the corresponding - * GDT entries are identical. So I will do nothing about segment reg - * and GDT, but change GDT base register in prelog and epilog. - */ - - /* - * 1. Now I am running with EIP = <physical address> + PAGE_OFFSET. - * But to make it smoothly switch from virtual mode to flat mode. - * The mapping of lower virtual memory has been created in prelog and - * epilog. - */ - movl $1f, %edx - subl $__PAGE_OFFSET, %edx - jmp *%edx -1: - - /* - * 2. Now on the top of stack is the return - * address in the caller of efi_call_phys(), then parameter 1, - * parameter 2, ..., param n. To make things easy, we save the return - * address of efi_call_phys in a global variable. - */ - popl %edx - movl %edx, saved_return_addr - /* get the function pointer into ECX*/ - popl %ecx - movl %ecx, efi_rt_function_ptr - movl $2f, %edx - subl $__PAGE_OFFSET, %edx - pushl %edx - - /* - * 3. Clear PG bit in %CR0. - */ - movl %cr0, %edx - andl $0x7fffffff, %edx - movl %edx, %cr0 - jmp 1f -1: - - /* - * 4. Adjust stack pointer. - */ - subl $__PAGE_OFFSET, %esp - - /* - * 5. Call the physical function. - */ - jmp *%ecx - -2: - /* - * 6. After EFI runtime service returns, control will return to - * following instruction. We'd better readjust stack pointer first. - */ - addl $__PAGE_OFFSET, %esp - - /* - * 7. Restore PG bit - */ - movl %cr0, %edx - orl $0x80000000, %edx - movl %edx, %cr0 - jmp 1f -1: - /* - * 8. Now restore the virtual mode from flat mode by - * adding EIP with PAGE_OFFSET. - */ - movl $1f, %edx - jmp *%edx -1: - - /* - * 9. Balance the stack. And because EAX contain the return value, - * we'd better not clobber it. - */ - leal efi_rt_function_ptr, %edx - movl (%edx), %ecx - pushl %ecx - - /* - * 10. Push the saved return address onto the stack and return. - */ - leal saved_return_addr, %edx - movl (%edx), %ecx - pushl %ecx - ret -ENDPROC(efi_call_phys) -.previous - -.data -saved_return_addr: - .long 0 -efi_rt_function_ptr: - .long 0 diff --git a/ANDROID_3.4.5/arch/x86/platform/efi/efi_stub_64.S b/ANDROID_3.4.5/arch/x86/platform/efi/efi_stub_64.S deleted file mode 100644 index 4c07ccab..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/efi/efi_stub_64.S +++ /dev/null @@ -1,116 +0,0 @@ -/* - * Function calling ABI conversion from Linux to EFI for x86_64 - * - * Copyright (C) 2007 Intel Corp - * Bibo Mao <bibo.mao@intel.com> - * Huang Ying <ying.huang@intel.com> - */ - -#include <linux/linkage.h> - -#define SAVE_XMM \ - mov %rsp, %rax; \ - subq $0x70, %rsp; \ - and $~0xf, %rsp; \ - mov %rax, (%rsp); \ - mov %cr0, %rax; \ - clts; \ - mov %rax, 0x8(%rsp); \ - movaps %xmm0, 0x60(%rsp); \ - movaps %xmm1, 0x50(%rsp); \ - movaps %xmm2, 0x40(%rsp); \ - movaps %xmm3, 0x30(%rsp); \ - movaps %xmm4, 0x20(%rsp); \ - movaps %xmm5, 0x10(%rsp) - -#define RESTORE_XMM \ - movaps 0x60(%rsp), %xmm0; \ - movaps 0x50(%rsp), %xmm1; \ - movaps 0x40(%rsp), %xmm2; \ - movaps 0x30(%rsp), %xmm3; \ - movaps 0x20(%rsp), %xmm4; \ - movaps 0x10(%rsp), %xmm5; \ - mov 0x8(%rsp), %rsi; \ - mov %rsi, %cr0; \ - mov (%rsp), %rsp - -ENTRY(efi_call0) - SAVE_XMM - subq $32, %rsp - call *%rdi - addq $32, %rsp - RESTORE_XMM - ret -ENDPROC(efi_call0) - -ENTRY(efi_call1) - SAVE_XMM - subq $32, %rsp - mov %rsi, %rcx - call *%rdi - addq $32, %rsp - RESTORE_XMM - ret -ENDPROC(efi_call1) - -ENTRY(efi_call2) - SAVE_XMM - subq $32, %rsp - mov %rsi, %rcx - call *%rdi - addq $32, %rsp - RESTORE_XMM - ret -ENDPROC(efi_call2) - -ENTRY(efi_call3) - SAVE_XMM - subq $32, %rsp - mov %rcx, %r8 - mov %rsi, %rcx - call *%rdi - addq $32, %rsp - RESTORE_XMM - ret -ENDPROC(efi_call3) - -ENTRY(efi_call4) - SAVE_XMM - subq $32, %rsp - mov %r8, %r9 - mov %rcx, %r8 - mov %rsi, %rcx - call *%rdi - addq $32, %rsp - RESTORE_XMM - ret -ENDPROC(efi_call4) - -ENTRY(efi_call5) - SAVE_XMM - subq $48, %rsp - mov %r9, 32(%rsp) - mov %r8, %r9 - mov %rcx, %r8 - mov %rsi, %rcx - call *%rdi - addq $48, %rsp - RESTORE_XMM - ret -ENDPROC(efi_call5) - -ENTRY(efi_call6) - SAVE_XMM - mov (%rsp), %rax - mov 8(%rax), %rax - subq $48, %rsp - mov %r9, 32(%rsp) - mov %rax, 40(%rsp) - mov %r8, %r9 - mov %rcx, %r8 - mov %rsi, %rcx - call *%rdi - addq $48, %rsp - RESTORE_XMM - ret -ENDPROC(efi_call6) diff --git a/ANDROID_3.4.5/arch/x86/platform/geode/Makefile b/ANDROID_3.4.5/arch/x86/platform/geode/Makefile deleted file mode 100644 index 5b51194f..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/geode/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -obj-$(CONFIG_ALIX) += alix.o -obj-$(CONFIG_NET5501) += net5501.o -obj-$(CONFIG_GEOS) += geos.o diff --git a/ANDROID_3.4.5/arch/x86/platform/geode/alix.c b/ANDROID_3.4.5/arch/x86/platform/geode/alix.c deleted file mode 100644 index 90e23e76..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/geode/alix.c +++ /dev/null @@ -1,200 +0,0 @@ -/* - * System Specific setup for PCEngines ALIX. - * At the moment this means setup of GPIO control of LEDs - * on Alix.2/3/6 boards. - * - * - * Copyright (C) 2008 Constantin Baranov <const@mimas.ru> - * Copyright (C) 2011 Ed Wildgoose <kernel@wildgooses.com> - * and Philip Prindeville <philipp@redfish-solutions.com> - * - * TODO: There are large similarities with leds-net5501.c - * by Alessandro Zummo <a.zummo@towertech.it> - * In the future leds-net5501.c should be migrated over to platform - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/string.h> -#include <linux/module.h> -#include <linux/leds.h> -#include <linux/platform_device.h> -#include <linux/gpio.h> -#include <linux/input.h> -#include <linux/gpio_keys.h> -#include <linux/dmi.h> - -#include <asm/geode.h> - -#define BIOS_SIGNATURE_TINYBIOS 0xf0000 -#define BIOS_SIGNATURE_COREBOOT 0x500 -#define BIOS_REGION_SIZE 0x10000 - -static bool force = 0; -module_param(force, bool, 0444); -/* FIXME: Award bios is not automatically detected as Alix platform */ -MODULE_PARM_DESC(force, "Force detection as ALIX.2/ALIX.3 platform"); - -static struct gpio_keys_button alix_gpio_buttons[] = { - { - .code = KEY_RESTART, - .gpio = 24, - .active_low = 1, - .desc = "Reset button", - .type = EV_KEY, - .wakeup = 0, - .debounce_interval = 100, - .can_disable = 0, - } -}; -static struct gpio_keys_platform_data alix_buttons_data = { - .buttons = alix_gpio_buttons, - .nbuttons = ARRAY_SIZE(alix_gpio_buttons), - .poll_interval = 20, -}; - -static struct platform_device alix_buttons_dev = { - .name = "gpio-keys-polled", - .id = 1, - .dev = { - .platform_data = &alix_buttons_data, - } -}; - -static struct gpio_led alix_leds[] = { - { - .name = "alix:1", - .gpio = 6, - .default_trigger = "default-on", - .active_low = 1, - }, - { - .name = "alix:2", - .gpio = 25, - .default_trigger = "default-off", - .active_low = 1, - }, - { - .name = "alix:3", - .gpio = 27, - .default_trigger = "default-off", - .active_low = 1, - }, -}; - -static struct gpio_led_platform_data alix_leds_data = { - .num_leds = ARRAY_SIZE(alix_leds), - .leds = alix_leds, -}; - -static struct platform_device alix_leds_dev = { - .name = "leds-gpio", - .id = -1, - .dev.platform_data = &alix_leds_data, -}; - -static struct __initdata platform_device *alix_devs[] = { - &alix_buttons_dev, - &alix_leds_dev, -}; - -static void __init register_alix(void) -{ - /* Setup LED control through leds-gpio driver */ - platform_add_devices(alix_devs, ARRAY_SIZE(alix_devs)); -} - -static bool __init alix_present(unsigned long bios_phys, - const char *alix_sig, - size_t alix_sig_len) -{ - const size_t bios_len = BIOS_REGION_SIZE; - const char *bios_virt; - const char *scan_end; - const char *p; - char name[64]; - - if (force) { - printk(KERN_NOTICE "%s: forced to skip BIOS test, " - "assume system is ALIX.2/ALIX.3\n", - KBUILD_MODNAME); - return true; - } - - bios_virt = phys_to_virt(bios_phys); - scan_end = bios_virt + bios_len - (alix_sig_len + 2); - for (p = bios_virt; p < scan_end; p++) { - const char *tail; - char *a; - - if (memcmp(p, alix_sig, alix_sig_len) != 0) - continue; - - memcpy(name, p, sizeof(name)); - - /* remove the first \0 character from string */ - a = strchr(name, '\0'); - if (a) - *a = ' '; - - /* cut the string at a newline */ - a = strchr(name, '\r'); - if (a) - *a = '\0'; - - tail = p + alix_sig_len; - if ((tail[0] == '2' || tail[0] == '3' || tail[0] == '6')) { - printk(KERN_INFO - "%s: system is recognized as \"%s\"\n", - KBUILD_MODNAME, name); - return true; - } - } - - return false; -} - -static bool __init alix_present_dmi(void) -{ - const char *vendor, *product; - - vendor = dmi_get_system_info(DMI_SYS_VENDOR); - if (!vendor || strcmp(vendor, "PC Engines")) - return false; - - product = dmi_get_system_info(DMI_PRODUCT_NAME); - if (!product || (strcmp(product, "ALIX.2D") && strcmp(product, "ALIX.6"))) - return false; - - printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n", - KBUILD_MODNAME, vendor, product); - - return true; -} - -static int __init alix_init(void) -{ - const char tinybios_sig[] = "PC Engines ALIX."; - const char coreboot_sig[] = "PC Engines\0ALIX."; - - if (!is_geode()) - return 0; - - if (alix_present(BIOS_SIGNATURE_TINYBIOS, tinybios_sig, sizeof(tinybios_sig) - 1) || - alix_present(BIOS_SIGNATURE_COREBOOT, coreboot_sig, sizeof(coreboot_sig) - 1) || - alix_present_dmi()) - register_alix(); - - return 0; -} - -module_init(alix_init); - -MODULE_AUTHOR("Ed Wildgoose <kernel@wildgooses.com>"); -MODULE_DESCRIPTION("PCEngines ALIX System Setup"); -MODULE_LICENSE("GPL"); diff --git a/ANDROID_3.4.5/arch/x86/platform/geode/geos.c b/ANDROID_3.4.5/arch/x86/platform/geode/geos.c deleted file mode 100644 index c2e6d535..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/geode/geos.c +++ /dev/null @@ -1,128 +0,0 @@ -/* - * System Specific setup for Traverse Technologies GEOS. - * At the moment this means setup of GPIO control of LEDs. - * - * Copyright (C) 2008 Constantin Baranov <const@mimas.ru> - * Copyright (C) 2011 Ed Wildgoose <kernel@wildgooses.com> - * and Philip Prindeville <philipp@redfish-solutions.com> - * - * TODO: There are large similarities with leds-net5501.c - * by Alessandro Zummo <a.zummo@towertech.it> - * In the future leds-net5501.c should be migrated over to platform - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/string.h> -#include <linux/module.h> -#include <linux/leds.h> -#include <linux/platform_device.h> -#include <linux/gpio.h> -#include <linux/input.h> -#include <linux/gpio_keys.h> -#include <linux/dmi.h> - -#include <asm/geode.h> - -static struct gpio_keys_button geos_gpio_buttons[] = { - { - .code = KEY_RESTART, - .gpio = 3, - .active_low = 1, - .desc = "Reset button", - .type = EV_KEY, - .wakeup = 0, - .debounce_interval = 100, - .can_disable = 0, - } -}; -static struct gpio_keys_platform_data geos_buttons_data = { - .buttons = geos_gpio_buttons, - .nbuttons = ARRAY_SIZE(geos_gpio_buttons), - .poll_interval = 20, -}; - -static struct platform_device geos_buttons_dev = { - .name = "gpio-keys-polled", - .id = 1, - .dev = { - .platform_data = &geos_buttons_data, - } -}; - -static struct gpio_led geos_leds[] = { - { - .name = "geos:1", - .gpio = 6, - .default_trigger = "default-on", - .active_low = 1, - }, - { - .name = "geos:2", - .gpio = 25, - .default_trigger = "default-off", - .active_low = 1, - }, - { - .name = "geos:3", - .gpio = 27, - .default_trigger = "default-off", - .active_low = 1, - }, -}; - -static struct gpio_led_platform_data geos_leds_data = { - .num_leds = ARRAY_SIZE(geos_leds), - .leds = geos_leds, -}; - -static struct platform_device geos_leds_dev = { - .name = "leds-gpio", - .id = -1, - .dev.platform_data = &geos_leds_data, -}; - -static struct __initdata platform_device *geos_devs[] = { - &geos_buttons_dev, - &geos_leds_dev, -}; - -static void __init register_geos(void) -{ - /* Setup LED control through leds-gpio driver */ - platform_add_devices(geos_devs, ARRAY_SIZE(geos_devs)); -} - -static int __init geos_init(void) -{ - const char *vendor, *product; - - if (!is_geode()) - return 0; - - vendor = dmi_get_system_info(DMI_SYS_VENDOR); - if (!vendor || strcmp(vendor, "Traverse Technologies")) - return 0; - - product = dmi_get_system_info(DMI_PRODUCT_NAME); - if (!product || strcmp(product, "Geos")) - return 0; - - printk(KERN_INFO "%s: system is recognized as \"%s %s\"\n", - KBUILD_MODNAME, vendor, product); - - register_geos(); - - return 0; -} - -module_init(geos_init); - -MODULE_AUTHOR("Philip Prindeville <philipp@redfish-solutions.com>"); -MODULE_DESCRIPTION("Traverse Technologies Geos System Setup"); -MODULE_LICENSE("GPL"); diff --git a/ANDROID_3.4.5/arch/x86/platform/geode/net5501.c b/ANDROID_3.4.5/arch/x86/platform/geode/net5501.c deleted file mode 100644 index 646e3b5b..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/geode/net5501.c +++ /dev/null @@ -1,154 +0,0 @@ -/* - * System Specific setup for Soekris net5501 - * At the moment this means setup of GPIO control of LEDs and buttons - * on net5501 boards. - * - * - * Copyright (C) 2008-2009 Tower Technologies - * Written by Alessandro Zummo <a.zummo@towertech.it> - * - * Copyright (C) 2008 Constantin Baranov <const@mimas.ru> - * Copyright (C) 2011 Ed Wildgoose <kernel@wildgooses.com> - * and Philip Prindeville <philipp@redfish-solutions.com> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 - * as published by the Free Software Foundation. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/io.h> -#include <linux/string.h> -#include <linux/module.h> -#include <linux/leds.h> -#include <linux/platform_device.h> -#include <linux/gpio.h> -#include <linux/input.h> -#include <linux/gpio_keys.h> - -#include <asm/geode.h> - -#define BIOS_REGION_BASE 0xffff0000 -#define BIOS_REGION_SIZE 0x00010000 - -static struct gpio_keys_button net5501_gpio_buttons[] = { - { - .code = KEY_RESTART, - .gpio = 24, - .active_low = 1, - .desc = "Reset button", - .type = EV_KEY, - .wakeup = 0, - .debounce_interval = 100, - .can_disable = 0, - } -}; -static struct gpio_keys_platform_data net5501_buttons_data = { - .buttons = net5501_gpio_buttons, - .nbuttons = ARRAY_SIZE(net5501_gpio_buttons), - .poll_interval = 20, -}; - -static struct platform_device net5501_buttons_dev = { - .name = "gpio-keys-polled", - .id = 1, - .dev = { - .platform_data = &net5501_buttons_data, - } -}; - -static struct gpio_led net5501_leds[] = { - { - .name = "net5501:1", - .gpio = 6, - .default_trigger = "default-on", - .active_low = 0, - }, -}; - -static struct gpio_led_platform_data net5501_leds_data = { - .num_leds = ARRAY_SIZE(net5501_leds), - .leds = net5501_leds, -}; - -static struct platform_device net5501_leds_dev = { - .name = "leds-gpio", - .id = -1, - .dev.platform_data = &net5501_leds_data, -}; - -static struct __initdata platform_device *net5501_devs[] = { - &net5501_buttons_dev, - &net5501_leds_dev, -}; - -static void __init register_net5501(void) -{ - /* Setup LED control through leds-gpio driver */ - platform_add_devices(net5501_devs, ARRAY_SIZE(net5501_devs)); -} - -struct net5501_board { - u16 offset; - u16 len; - char *sig; -}; - -static struct net5501_board __initdata boards[] = { - { 0xb7b, 7, "net5501" }, /* net5501 v1.33/1.33c */ - { 0xb1f, 7, "net5501" }, /* net5501 v1.32i */ -}; - -static bool __init net5501_present(void) -{ - int i; - unsigned char *rombase, *bios; - bool found = false; - - rombase = ioremap(BIOS_REGION_BASE, BIOS_REGION_SIZE - 1); - if (!rombase) { - printk(KERN_ERR "%s: failed to get rombase\n", KBUILD_MODNAME); - return found; - } - - bios = rombase + 0x20; /* null terminated */ - - if (memcmp(bios, "comBIOS", 7)) - goto unmap; - - for (i = 0; i < ARRAY_SIZE(boards); i++) { - unsigned char *model = rombase + boards[i].offset; - - if (!memcmp(model, boards[i].sig, boards[i].len)) { - printk(KERN_INFO "%s: system is recognized as \"%s\"\n", - KBUILD_MODNAME, model); - - found = true; - break; - } - } - -unmap: - iounmap(rombase); - return found; -} - -static int __init net5501_init(void) -{ - if (!is_geode()) - return 0; - - if (!net5501_present()) - return 0; - - register_net5501(); - - return 0; -} - -module_init(net5501_init); - -MODULE_AUTHOR("Philip Prindeville <philipp@redfish-solutions.com>"); -MODULE_DESCRIPTION("Soekris net5501 System Setup"); -MODULE_LICENSE("GPL"); diff --git a/ANDROID_3.4.5/arch/x86/platform/iris/Makefile b/ANDROID_3.4.5/arch/x86/platform/iris/Makefile deleted file mode 100644 index db921983..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/iris/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_X86_32_IRIS) += iris.o diff --git a/ANDROID_3.4.5/arch/x86/platform/iris/iris.c b/ANDROID_3.4.5/arch/x86/platform/iris/iris.c deleted file mode 100644 index 5917eb56..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/iris/iris.c +++ /dev/null @@ -1,91 +0,0 @@ -/* - * Eurobraille/Iris power off support. - * - * Eurobraille's Iris machine is a PC with no APM or ACPI support. - * It is shutdown by a special I/O sequence which this module provides. - * - * Copyright (C) Shérab <Sebastien.Hinderer@ens-lyon.org> - * - * This program is free software ; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation ; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY ; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with the program ; if not, write to the Free Software - * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. - */ - -#include <linux/moduleparam.h> -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/pm.h> -#include <asm/io.h> - -#define IRIS_GIO_BASE 0x340 -#define IRIS_GIO_INPUT IRIS_GIO_BASE -#define IRIS_GIO_OUTPUT (IRIS_GIO_BASE + 1) -#define IRIS_GIO_PULSE 0x80 /* First byte to send */ -#define IRIS_GIO_REST 0x00 /* Second byte to send */ -#define IRIS_GIO_NODEV 0xff /* Likely not an Iris */ - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Sébastien Hinderer <Sebastien.Hinderer@ens-lyon.org>"); -MODULE_DESCRIPTION("A power_off handler for Iris devices from EuroBraille"); -MODULE_SUPPORTED_DEVICE("Eurobraille/Iris"); - -static bool force; - -module_param(force, bool, 0); -MODULE_PARM_DESC(force, "Set to one to force poweroff handler installation."); - -static void (*old_pm_power_off)(void); - -static void iris_power_off(void) -{ - outb(IRIS_GIO_PULSE, IRIS_GIO_OUTPUT); - msleep(850); - outb(IRIS_GIO_REST, IRIS_GIO_OUTPUT); -} - -/* - * Before installing the power_off handler, try to make sure the OS is - * running on an Iris. Since Iris does not support DMI, this is done - * by reading its input port and seeing whether the read value is - * meaningful. - */ -static int iris_init(void) -{ - unsigned char status; - if (force != 1) { - printk(KERN_ERR "The force parameter has not been set to 1 so the Iris poweroff handler will not be installed.\n"); - return -ENODEV; - } - status = inb(IRIS_GIO_INPUT); - if (status == IRIS_GIO_NODEV) { - printk(KERN_ERR "This machine does not seem to be an Iris. Power_off handler not installed.\n"); - return -ENODEV; - } - old_pm_power_off = pm_power_off; - pm_power_off = &iris_power_off; - printk(KERN_INFO "Iris power_off handler installed.\n"); - - return 0; -} - -static void iris_exit(void) -{ - pm_power_off = old_pm_power_off; - printk(KERN_INFO "Iris power_off handler uninstalled.\n"); -} - -module_init(iris_init); -module_exit(iris_exit); diff --git a/ANDROID_3.4.5/arch/x86/platform/mrst/Makefile b/ANDROID_3.4.5/arch/x86/platform/mrst/Makefile deleted file mode 100644 index af1da7e6..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/mrst/Makefile +++ /dev/null @@ -1,3 +0,0 @@ -obj-$(CONFIG_X86_INTEL_MID) += mrst.o -obj-$(CONFIG_X86_INTEL_MID) += vrtc.o -obj-$(CONFIG_EARLY_PRINTK_INTEL_MID) += early_printk_mrst.o diff --git a/ANDROID_3.4.5/arch/x86/platform/mrst/early_printk_mrst.c b/ANDROID_3.4.5/arch/x86/platform/mrst/early_printk_mrst.c deleted file mode 100644 index 3c6e3284..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/mrst/early_printk_mrst.c +++ /dev/null @@ -1,327 +0,0 @@ -/* - * early_printk_mrst.c - early consoles for Intel MID platforms - * - * Copyright (c) 2008-2010, Intel Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. - */ - -/* - * This file implements two early consoles named mrst and hsu. - * mrst is based on Maxim3110 spi-uart device, it exists in both - * Moorestown and Medfield platforms, while hsu is based on a High - * Speed UART device which only exists in the Medfield platform - */ - -#include <linux/serial_reg.h> -#include <linux/serial_mfd.h> -#include <linux/kmsg_dump.h> -#include <linux/console.h> -#include <linux/kernel.h> -#include <linux/delay.h> -#include <linux/init.h> -#include <linux/io.h> - -#include <asm/fixmap.h> -#include <asm/pgtable.h> -#include <asm/mrst.h> - -#define MRST_SPI_TIMEOUT 0x200000 -#define MRST_REGBASE_SPI0 0xff128000 -#define MRST_REGBASE_SPI1 0xff128400 -#define MRST_CLK_SPI0_REG 0xff11d86c - -/* Bit fields in CTRLR0 */ -#define SPI_DFS_OFFSET 0 - -#define SPI_FRF_OFFSET 4 -#define SPI_FRF_SPI 0x0 -#define SPI_FRF_SSP 0x1 -#define SPI_FRF_MICROWIRE 0x2 -#define SPI_FRF_RESV 0x3 - -#define SPI_MODE_OFFSET 6 -#define SPI_SCPH_OFFSET 6 -#define SPI_SCOL_OFFSET 7 -#define SPI_TMOD_OFFSET 8 -#define SPI_TMOD_TR 0x0 /* xmit & recv */ -#define SPI_TMOD_TO 0x1 /* xmit only */ -#define SPI_TMOD_RO 0x2 /* recv only */ -#define SPI_TMOD_EPROMREAD 0x3 /* eeprom read mode */ - -#define SPI_SLVOE_OFFSET 10 -#define SPI_SRL_OFFSET 11 -#define SPI_CFS_OFFSET 12 - -/* Bit fields in SR, 7 bits */ -#define SR_MASK 0x7f /* cover 7 bits */ -#define SR_BUSY (1 << 0) -#define SR_TF_NOT_FULL (1 << 1) -#define SR_TF_EMPT (1 << 2) -#define SR_RF_NOT_EMPT (1 << 3) -#define SR_RF_FULL (1 << 4) -#define SR_TX_ERR (1 << 5) -#define SR_DCOL (1 << 6) - -struct dw_spi_reg { - u32 ctrl0; - u32 ctrl1; - u32 ssienr; - u32 mwcr; - u32 ser; - u32 baudr; - u32 txfltr; - u32 rxfltr; - u32 txflr; - u32 rxflr; - u32 sr; - u32 imr; - u32 isr; - u32 risr; - u32 txoicr; - u32 rxoicr; - u32 rxuicr; - u32 msticr; - u32 icr; - u32 dmacr; - u32 dmatdlr; - u32 dmardlr; - u32 idr; - u32 version; - - /* Currently operates as 32 bits, though only the low 16 bits matter */ - u32 dr; -} __packed; - -#define dw_readl(dw, name) __raw_readl(&(dw)->name) -#define dw_writel(dw, name, val) __raw_writel((val), &(dw)->name) - -/* Default use SPI0 register for mrst, we will detect Penwell and use SPI1 */ -static unsigned long mrst_spi_paddr = MRST_REGBASE_SPI0; - -static u32 *pclk_spi0; -/* Always contains an accessible address, start with 0 */ -static struct dw_spi_reg *pspi; - -static struct kmsg_dumper dw_dumper; -static int dumper_registered; - -static void dw_kmsg_dump(struct kmsg_dumper *dumper, - enum kmsg_dump_reason reason, - const char *s1, unsigned long l1, - const char *s2, unsigned long l2) -{ - int i; - - /* When run to this, we'd better re-init the HW */ - mrst_early_console_init(); - - for (i = 0; i < l1; i++) - early_mrst_console.write(&early_mrst_console, s1 + i, 1); - for (i = 0; i < l2; i++) - early_mrst_console.write(&early_mrst_console, s2 + i, 1); -} - -/* Set the ratio rate to 115200, 8n1, IRQ disabled */ -static void max3110_write_config(void) -{ - u16 config; - - config = 0xc001; - dw_writel(pspi, dr, config); -} - -/* Translate char to a eligible word and send to max3110 */ -static void max3110_write_data(char c) -{ - u16 data; - - data = 0x8000 | c; - dw_writel(pspi, dr, data); -} - -void mrst_early_console_init(void) -{ - u32 ctrlr0 = 0; - u32 spi0_cdiv; - u32 freq; /* Freqency info only need be searched once */ - - /* Base clk is 100 MHz, the actual clk = 100M / (clk_divider + 1) */ - pclk_spi0 = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE, - MRST_CLK_SPI0_REG); - spi0_cdiv = ((*pclk_spi0) & 0xe00) >> 9; - freq = 100000000 / (spi0_cdiv + 1); - - if (mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL) - mrst_spi_paddr = MRST_REGBASE_SPI1; - - pspi = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE, - mrst_spi_paddr); - - /* Disable SPI controller */ - dw_writel(pspi, ssienr, 0); - - /* Set control param, 8 bits, transmit only mode */ - ctrlr0 = dw_readl(pspi, ctrl0); - - ctrlr0 &= 0xfcc0; - ctrlr0 |= 0xf | (SPI_FRF_SPI << SPI_FRF_OFFSET) - | (SPI_TMOD_TO << SPI_TMOD_OFFSET); - dw_writel(pspi, ctrl0, ctrlr0); - - /* - * Change the spi0 clk to comply with 115200 bps, use 100000 to - * calculate the clk dividor to make the clock a little slower - * than real baud rate. - */ - dw_writel(pspi, baudr, freq/100000); - - /* Disable all INT for early phase */ - dw_writel(pspi, imr, 0x0); - - /* Set the cs to spi-uart */ - dw_writel(pspi, ser, 0x2); - - /* Enable the HW, the last step for HW init */ - dw_writel(pspi, ssienr, 0x1); - - /* Set the default configuration */ - max3110_write_config(); - - /* Register the kmsg dumper */ - if (!dumper_registered) { - dw_dumper.dump = dw_kmsg_dump; - kmsg_dump_register(&dw_dumper); - dumper_registered = 1; - } -} - -/* Slave select should be called in the read/write function */ -static void early_mrst_spi_putc(char c) -{ - unsigned int timeout; - u32 sr; - - timeout = MRST_SPI_TIMEOUT; - /* Early putc needs to make sure the TX FIFO is not full */ - while (--timeout) { - sr = dw_readl(pspi, sr); - if (!(sr & SR_TF_NOT_FULL)) - cpu_relax(); - else - break; - } - - if (!timeout) - pr_warning("MRST earlycon: timed out\n"); - else - max3110_write_data(c); -} - -/* Early SPI only uses polling mode */ -static void early_mrst_spi_write(struct console *con, const char *str, unsigned n) -{ - int i; - - for (i = 0; i < n && *str; i++) { - if (*str == '\n') - early_mrst_spi_putc('\r'); - early_mrst_spi_putc(*str); - str++; - } -} - -struct console early_mrst_console = { - .name = "earlymrst", - .write = early_mrst_spi_write, - .flags = CON_PRINTBUFFER, - .index = -1, -}; - -/* - * Following is the early console based on Medfield HSU (High - * Speed UART) device. - */ -#define HSU_PORT_BASE 0xffa28080 - -static void __iomem *phsu; - -void hsu_early_console_init(const char *s) -{ - unsigned long paddr, port = 0; - u8 lcr; - - /* - * Select the early HSU console port if specified by user in the - * kernel command line. - */ - if (*s && !kstrtoul(s, 10, &port)) - port = clamp_val(port, 0, 2); - - paddr = HSU_PORT_BASE + port * 0x80; - phsu = (void *)set_fixmap_offset_nocache(FIX_EARLYCON_MEM_BASE, paddr); - - /* Disable FIFO */ - writeb(0x0, phsu + UART_FCR); - - /* Set to default 115200 bps, 8n1 */ - lcr = readb(phsu + UART_LCR); - writeb((0x80 | lcr), phsu + UART_LCR); - writeb(0x18, phsu + UART_DLL); - writeb(lcr, phsu + UART_LCR); - writel(0x3600, phsu + UART_MUL*4); - - writeb(0x8, phsu + UART_MCR); - writeb(0x7, phsu + UART_FCR); - writeb(0x3, phsu + UART_LCR); - - /* Clear IRQ status */ - readb(phsu + UART_LSR); - readb(phsu + UART_RX); - readb(phsu + UART_IIR); - readb(phsu + UART_MSR); - - /* Enable FIFO */ - writeb(0x7, phsu + UART_FCR); -} - -#define BOTH_EMPTY (UART_LSR_TEMT | UART_LSR_THRE) - -static void early_hsu_putc(char ch) -{ - unsigned int timeout = 10000; /* 10ms */ - u8 status; - - while (--timeout) { - status = readb(phsu + UART_LSR); - if (status & BOTH_EMPTY) - break; - udelay(1); - } - - /* Only write the char when there was no timeout */ - if (timeout) - writeb(ch, phsu + UART_TX); -} - -static void early_hsu_write(struct console *con, const char *str, unsigned n) -{ - int i; - - for (i = 0; i < n && *str; i++) { - if (*str == '\n') - early_hsu_putc('\r'); - early_hsu_putc(*str); - str++; - } -} - -struct console early_hsu_console = { - .name = "earlyhsu", - .write = early_hsu_write, - .flags = CON_PRINTBUFFER, - .index = -1, -}; diff --git a/ANDROID_3.4.5/arch/x86/platform/mrst/mrst.c b/ANDROID_3.4.5/arch/x86/platform/mrst/mrst.c deleted file mode 100644 index e31bcd8f..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/mrst/mrst.c +++ /dev/null @@ -1,1053 +0,0 @@ -/* - * mrst.c: Intel Moorestown platform specific setup code - * - * (C) Copyright 2008 Intel Corporation - * Author: Jacob Pan (jacob.jun.pan@intel.com) - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. - */ - -#define pr_fmt(fmt) "mrst: " fmt - -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/interrupt.h> -#include <linux/scatterlist.h> -#include <linux/sfi.h> -#include <linux/intel_pmic_gpio.h> -#include <linux/spi/spi.h> -#include <linux/i2c.h> -#include <linux/i2c/pca953x.h> -#include <linux/gpio_keys.h> -#include <linux/input.h> -#include <linux/platform_device.h> -#include <linux/irq.h> -#include <linux/module.h> -#include <linux/notifier.h> -#include <linux/mfd/intel_msic.h> -#include <linux/gpio.h> -#include <linux/i2c/tc35876x.h> - -#include <asm/setup.h> -#include <asm/mpspec_def.h> -#include <asm/hw_irq.h> -#include <asm/apic.h> -#include <asm/io_apic.h> -#include <asm/mrst.h> -#include <asm/mrst-vrtc.h> -#include <asm/io.h> -#include <asm/i8259.h> -#include <asm/intel_scu_ipc.h> -#include <asm/apb_timer.h> -#include <asm/reboot.h> - -/* - * the clockevent devices on Moorestown/Medfield can be APBT or LAPIC clock, - * cmdline option x86_mrst_timer can be used to override the configuration - * to prefer one or the other. - * at runtime, there are basically three timer configurations: - * 1. per cpu apbt clock only - * 2. per cpu always-on lapic clocks only, this is Penwell/Medfield only - * 3. per cpu lapic clock (C3STOP) and one apbt clock, with broadcast. - * - * by default (without cmdline option), platform code first detects cpu type - * to see if we are on lincroft or penwell, then set up both lapic or apbt - * clocks accordingly. - * i.e. by default, medfield uses configuration #2, moorestown uses #1. - * config #3 is supported but not recommended on medfield. - * - * rating and feature summary: - * lapic (with C3STOP) --------- 100 - * apbt (always-on) ------------ 110 - * lapic (always-on,ARAT) ------ 150 - */ - -__cpuinitdata enum mrst_timer_options mrst_timer_options; - -static u32 sfi_mtimer_usage[SFI_MTMR_MAX_NUM]; -static struct sfi_timer_table_entry sfi_mtimer_array[SFI_MTMR_MAX_NUM]; -enum mrst_cpu_type __mrst_cpu_chip; -EXPORT_SYMBOL_GPL(__mrst_cpu_chip); - -int sfi_mtimer_num; - -struct sfi_rtc_table_entry sfi_mrtc_array[SFI_MRTC_MAX]; -EXPORT_SYMBOL_GPL(sfi_mrtc_array); -int sfi_mrtc_num; - -static void mrst_power_off(void) -{ -} - -static void mrst_reboot(void) -{ - intel_scu_ipc_simple_command(IPCMSG_COLD_BOOT, 0); -} - -/* parse all the mtimer info to a static mtimer array */ -static int __init sfi_parse_mtmr(struct sfi_table_header *table) -{ - struct sfi_table_simple *sb; - struct sfi_timer_table_entry *pentry; - struct mpc_intsrc mp_irq; - int totallen; - - sb = (struct sfi_table_simple *)table; - if (!sfi_mtimer_num) { - sfi_mtimer_num = SFI_GET_NUM_ENTRIES(sb, - struct sfi_timer_table_entry); - pentry = (struct sfi_timer_table_entry *) sb->pentry; - totallen = sfi_mtimer_num * sizeof(*pentry); - memcpy(sfi_mtimer_array, pentry, totallen); - } - - pr_debug("SFI MTIMER info (num = %d):\n", sfi_mtimer_num); - pentry = sfi_mtimer_array; - for (totallen = 0; totallen < sfi_mtimer_num; totallen++, pentry++) { - pr_debug("timer[%d]: paddr = 0x%08x, freq = %dHz," - " irq = %d\n", totallen, (u32)pentry->phys_addr, - pentry->freq_hz, pentry->irq); - if (!pentry->irq) - continue; - mp_irq.type = MP_INTSRC; - mp_irq.irqtype = mp_INT; -/* triggering mode edge bit 2-3, active high polarity bit 0-1 */ - mp_irq.irqflag = 5; - mp_irq.srcbus = MP_BUS_ISA; - mp_irq.srcbusirq = pentry->irq; /* IRQ */ - mp_irq.dstapic = MP_APIC_ALL; - mp_irq.dstirq = pentry->irq; - mp_save_irq(&mp_irq); - } - - return 0; -} - -struct sfi_timer_table_entry *sfi_get_mtmr(int hint) -{ - int i; - if (hint < sfi_mtimer_num) { - if (!sfi_mtimer_usage[hint]) { - pr_debug("hint taken for timer %d irq %d\n",\ - hint, sfi_mtimer_array[hint].irq); - sfi_mtimer_usage[hint] = 1; - return &sfi_mtimer_array[hint]; - } - } - /* take the first timer available */ - for (i = 0; i < sfi_mtimer_num;) { - if (!sfi_mtimer_usage[i]) { - sfi_mtimer_usage[i] = 1; - return &sfi_mtimer_array[i]; - } - i++; - } - return NULL; -} - -void sfi_free_mtmr(struct sfi_timer_table_entry *mtmr) -{ - int i; - for (i = 0; i < sfi_mtimer_num;) { - if (mtmr->irq == sfi_mtimer_array[i].irq) { - sfi_mtimer_usage[i] = 0; - return; - } - i++; - } -} - -/* parse all the mrtc info to a global mrtc array */ -int __init sfi_parse_mrtc(struct sfi_table_header *table) -{ - struct sfi_table_simple *sb; - struct sfi_rtc_table_entry *pentry; - struct mpc_intsrc mp_irq; - - int totallen; - - sb = (struct sfi_table_simple *)table; - if (!sfi_mrtc_num) { - sfi_mrtc_num = SFI_GET_NUM_ENTRIES(sb, - struct sfi_rtc_table_entry); - pentry = (struct sfi_rtc_table_entry *)sb->pentry; - totallen = sfi_mrtc_num * sizeof(*pentry); - memcpy(sfi_mrtc_array, pentry, totallen); - } - - pr_debug("SFI RTC info (num = %d):\n", sfi_mrtc_num); - pentry = sfi_mrtc_array; - for (totallen = 0; totallen < sfi_mrtc_num; totallen++, pentry++) { - pr_debug("RTC[%d]: paddr = 0x%08x, irq = %d\n", - totallen, (u32)pentry->phys_addr, pentry->irq); - mp_irq.type = MP_INTSRC; - mp_irq.irqtype = mp_INT; - mp_irq.irqflag = 0xf; /* level trigger and active low */ - mp_irq.srcbus = MP_BUS_ISA; - mp_irq.srcbusirq = pentry->irq; /* IRQ */ - mp_irq.dstapic = MP_APIC_ALL; - mp_irq.dstirq = pentry->irq; - mp_save_irq(&mp_irq); - } - return 0; -} - -static unsigned long __init mrst_calibrate_tsc(void) -{ - unsigned long fast_calibrate; - u32 lo, hi, ratio, fsb; - - rdmsr(MSR_IA32_PERF_STATUS, lo, hi); - pr_debug("IA32 perf status is 0x%x, 0x%0x\n", lo, hi); - ratio = (hi >> 8) & 0x1f; - pr_debug("ratio is %d\n", ratio); - if (!ratio) { - pr_err("read a zero ratio, should be incorrect!\n"); - pr_err("force tsc ratio to 16 ...\n"); - ratio = 16; - } - rdmsr(MSR_FSB_FREQ, lo, hi); - if ((lo & 0x7) == 0x7) - fsb = PENWELL_FSB_FREQ_83SKU; - else - fsb = PENWELL_FSB_FREQ_100SKU; - fast_calibrate = ratio * fsb; - pr_debug("read penwell tsc %lu khz\n", fast_calibrate); - lapic_timer_frequency = fsb * 1000 / HZ; - /* mark tsc clocksource as reliable */ - set_cpu_cap(&boot_cpu_data, X86_FEATURE_TSC_RELIABLE); - - if (fast_calibrate) - return fast_calibrate; - - return 0; -} - -static void __init mrst_time_init(void) -{ - sfi_table_parse(SFI_SIG_MTMR, NULL, NULL, sfi_parse_mtmr); - switch (mrst_timer_options) { - case MRST_TIMER_APBT_ONLY: - break; - case MRST_TIMER_LAPIC_APBT: - x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock; - x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock; - break; - default: - if (!boot_cpu_has(X86_FEATURE_ARAT)) - break; - x86_init.timers.setup_percpu_clockev = setup_boot_APIC_clock; - x86_cpuinit.setup_percpu_clockev = setup_secondary_APIC_clock; - return; - } - /* we need at least one APB timer */ - pre_init_apic_IRQ0(); - apbt_time_init(); -} - -static void __cpuinit mrst_arch_setup(void) -{ - if (boot_cpu_data.x86 == 6 && boot_cpu_data.x86_model == 0x27) - __mrst_cpu_chip = MRST_CPU_CHIP_PENWELL; - else { - pr_err("Unknown Intel MID CPU (%d:%d), default to Penwell\n", - boot_cpu_data.x86, boot_cpu_data.x86_model); - __mrst_cpu_chip = MRST_CPU_CHIP_PENWELL; - } -} - -/* MID systems don't have i8042 controller */ -static int mrst_i8042_detect(void) -{ - return 0; -} - -/* - * Moorestown does not have external NMI source nor port 0x61 to report - * NMI status. The possible NMI sources are from pmu as a result of NMI - * watchdog or lock debug. Reading io port 0x61 results in 0xff which - * misled NMI handler. - */ -static unsigned char mrst_get_nmi_reason(void) -{ - return 0; -} - -/* - * Moorestown specific x86_init function overrides and early setup - * calls. - */ -void __init x86_mrst_early_setup(void) -{ - x86_init.resources.probe_roms = x86_init_noop; - x86_init.resources.reserve_resources = x86_init_noop; - - x86_init.timers.timer_init = mrst_time_init; - x86_init.timers.setup_percpu_clockev = x86_init_noop; - - x86_init.irqs.pre_vector_init = x86_init_noop; - - x86_init.oem.arch_setup = mrst_arch_setup; - - x86_cpuinit.setup_percpu_clockev = apbt_setup_secondary_clock; - - x86_platform.calibrate_tsc = mrst_calibrate_tsc; - x86_platform.i8042_detect = mrst_i8042_detect; - x86_init.timers.wallclock_init = mrst_rtc_init; - x86_platform.get_nmi_reason = mrst_get_nmi_reason; - - x86_init.pci.init = pci_mrst_init; - x86_init.pci.fixup_irqs = x86_init_noop; - - legacy_pic = &null_legacy_pic; - - /* Moorestown specific power_off/restart method */ - pm_power_off = mrst_power_off; - machine_ops.emergency_restart = mrst_reboot; - - /* Avoid searching for BIOS MP tables */ - x86_init.mpparse.find_smp_config = x86_init_noop; - x86_init.mpparse.get_smp_config = x86_init_uint_noop; - set_bit(MP_BUS_ISA, mp_bus_not_pci); -} - -/* - * if user does not want to use per CPU apb timer, just give it a lower rating - * than local apic timer and skip the late per cpu timer init. - */ -static inline int __init setup_x86_mrst_timer(char *arg) -{ - if (!arg) - return -EINVAL; - - if (strcmp("apbt_only", arg) == 0) - mrst_timer_options = MRST_TIMER_APBT_ONLY; - else if (strcmp("lapic_and_apbt", arg) == 0) - mrst_timer_options = MRST_TIMER_LAPIC_APBT; - else { - pr_warning("X86 MRST timer option %s not recognised" - " use x86_mrst_timer=apbt_only or lapic_and_apbt\n", - arg); - return -EINVAL; - } - return 0; -} -__setup("x86_mrst_timer=", setup_x86_mrst_timer); - -/* - * Parsing GPIO table first, since the DEVS table will need this table - * to map the pin name to the actual pin. - */ -static struct sfi_gpio_table_entry *gpio_table; -static int gpio_num_entry; - -static int __init sfi_parse_gpio(struct sfi_table_header *table) -{ - struct sfi_table_simple *sb; - struct sfi_gpio_table_entry *pentry; - int num, i; - - if (gpio_table) - return 0; - sb = (struct sfi_table_simple *)table; - num = SFI_GET_NUM_ENTRIES(sb, struct sfi_gpio_table_entry); - pentry = (struct sfi_gpio_table_entry *)sb->pentry; - - gpio_table = (struct sfi_gpio_table_entry *) - kmalloc(num * sizeof(*pentry), GFP_KERNEL); - if (!gpio_table) - return -1; - memcpy(gpio_table, pentry, num * sizeof(*pentry)); - gpio_num_entry = num; - - pr_debug("GPIO pin info:\n"); - for (i = 0; i < num; i++, pentry++) - pr_debug("info[%2d]: controller = %16.16s, pin_name = %16.16s," - " pin = %d\n", i, - pentry->controller_name, - pentry->pin_name, - pentry->pin_no); - return 0; -} - -static int get_gpio_by_name(const char *name) -{ - struct sfi_gpio_table_entry *pentry = gpio_table; - int i; - - if (!pentry) - return -1; - for (i = 0; i < gpio_num_entry; i++, pentry++) { - if (!strncmp(name, pentry->pin_name, SFI_NAME_LEN)) - return pentry->pin_no; - } - return -1; -} - -/* - * Here defines the array of devices platform data that IAFW would export - * through SFI "DEVS" table, we use name and type to match the device and - * its platform data. - */ -struct devs_id { - char name[SFI_NAME_LEN + 1]; - u8 type; - u8 delay; - void *(*get_platform_data)(void *info); -}; - -/* the offset for the mapping of global gpio pin to irq */ -#define MRST_IRQ_OFFSET 0x100 - -static void __init *pmic_gpio_platform_data(void *info) -{ - static struct intel_pmic_gpio_platform_data pmic_gpio_pdata; - int gpio_base = get_gpio_by_name("pmic_gpio_base"); - - if (gpio_base == -1) - gpio_base = 64; - pmic_gpio_pdata.gpio_base = gpio_base; - pmic_gpio_pdata.irq_base = gpio_base + MRST_IRQ_OFFSET; - pmic_gpio_pdata.gpiointr = 0xffffeff8; - - return &pmic_gpio_pdata; -} - -static void __init *max3111_platform_data(void *info) -{ - struct spi_board_info *spi_info = info; - int intr = get_gpio_by_name("max3111_int"); - - spi_info->mode = SPI_MODE_0; - if (intr == -1) - return NULL; - spi_info->irq = intr + MRST_IRQ_OFFSET; - return NULL; -} - -/* we have multiple max7315 on the board ... */ -#define MAX7315_NUM 2 -static void __init *max7315_platform_data(void *info) -{ - static struct pca953x_platform_data max7315_pdata[MAX7315_NUM]; - static int nr; - struct pca953x_platform_data *max7315 = &max7315_pdata[nr]; - struct i2c_board_info *i2c_info = info; - int gpio_base, intr; - char base_pin_name[SFI_NAME_LEN + 1]; - char intr_pin_name[SFI_NAME_LEN + 1]; - - if (nr == MAX7315_NUM) { - pr_err("too many max7315s, we only support %d\n", - MAX7315_NUM); - return NULL; - } - /* we have several max7315 on the board, we only need load several - * instances of the same pca953x driver to cover them - */ - strcpy(i2c_info->type, "max7315"); - if (nr++) { - sprintf(base_pin_name, "max7315_%d_base", nr); - sprintf(intr_pin_name, "max7315_%d_int", nr); - } else { - strcpy(base_pin_name, "max7315_base"); - strcpy(intr_pin_name, "max7315_int"); - } - - gpio_base = get_gpio_by_name(base_pin_name); - intr = get_gpio_by_name(intr_pin_name); - - if (gpio_base == -1) - return NULL; - max7315->gpio_base = gpio_base; - if (intr != -1) { - i2c_info->irq = intr + MRST_IRQ_OFFSET; - max7315->irq_base = gpio_base + MRST_IRQ_OFFSET; - } else { - i2c_info->irq = -1; - max7315->irq_base = -1; - } - return max7315; -} - -static void *tca6416_platform_data(void *info) -{ - static struct pca953x_platform_data tca6416; - struct i2c_board_info *i2c_info = info; - int gpio_base, intr; - char base_pin_name[SFI_NAME_LEN + 1]; - char intr_pin_name[SFI_NAME_LEN + 1]; - - strcpy(i2c_info->type, "tca6416"); - strcpy(base_pin_name, "tca6416_base"); - strcpy(intr_pin_name, "tca6416_int"); - - gpio_base = get_gpio_by_name(base_pin_name); - intr = get_gpio_by_name(intr_pin_name); - - if (gpio_base == -1) - return NULL; - tca6416.gpio_base = gpio_base; - if (intr != -1) { - i2c_info->irq = intr + MRST_IRQ_OFFSET; - tca6416.irq_base = gpio_base + MRST_IRQ_OFFSET; - } else { - i2c_info->irq = -1; - tca6416.irq_base = -1; - } - return &tca6416; -} - -static void *mpu3050_platform_data(void *info) -{ - struct i2c_board_info *i2c_info = info; - int intr = get_gpio_by_name("mpu3050_int"); - - if (intr == -1) - return NULL; - - i2c_info->irq = intr + MRST_IRQ_OFFSET; - return NULL; -} - -static void __init *emc1403_platform_data(void *info) -{ - static short intr2nd_pdata; - struct i2c_board_info *i2c_info = info; - int intr = get_gpio_by_name("thermal_int"); - int intr2nd = get_gpio_by_name("thermal_alert"); - - if (intr == -1 || intr2nd == -1) - return NULL; - - i2c_info->irq = intr + MRST_IRQ_OFFSET; - intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET; - - return &intr2nd_pdata; -} - -static void __init *lis331dl_platform_data(void *info) -{ - static short intr2nd_pdata; - struct i2c_board_info *i2c_info = info; - int intr = get_gpio_by_name("accel_int"); - int intr2nd = get_gpio_by_name("accel_2"); - - if (intr == -1 || intr2nd == -1) - return NULL; - - i2c_info->irq = intr + MRST_IRQ_OFFSET; - intr2nd_pdata = intr2nd + MRST_IRQ_OFFSET; - - return &intr2nd_pdata; -} - -static void __init *no_platform_data(void *info) -{ - return NULL; -} - -static struct resource msic_resources[] = { - { - .start = INTEL_MSIC_IRQ_PHYS_BASE, - .end = INTEL_MSIC_IRQ_PHYS_BASE + 64 - 1, - .flags = IORESOURCE_MEM, - }, -}; - -static struct intel_msic_platform_data msic_pdata; - -static struct platform_device msic_device = { - .name = "intel_msic", - .id = -1, - .dev = { - .platform_data = &msic_pdata, - }, - .num_resources = ARRAY_SIZE(msic_resources), - .resource = msic_resources, -}; - -static inline bool mrst_has_msic(void) -{ - return mrst_identify_cpu() == MRST_CPU_CHIP_PENWELL; -} - -static int msic_scu_status_change(struct notifier_block *nb, - unsigned long code, void *data) -{ - if (code == SCU_DOWN) { - platform_device_unregister(&msic_device); - return 0; - } - - return platform_device_register(&msic_device); -} - -static int __init msic_init(void) -{ - static struct notifier_block msic_scu_notifier = { - .notifier_call = msic_scu_status_change, - }; - - /* - * We need to be sure that the SCU IPC is ready before MSIC device - * can be registered. - */ - if (mrst_has_msic()) - intel_scu_notifier_add(&msic_scu_notifier); - - return 0; -} -arch_initcall(msic_init); - -/* - * msic_generic_platform_data - sets generic platform data for the block - * @info: pointer to the SFI device table entry for this block - * @block: MSIC block - * - * Function sets IRQ number from the SFI table entry for given device to - * the MSIC platform data. - */ -static void *msic_generic_platform_data(void *info, enum intel_msic_block block) -{ - struct sfi_device_table_entry *entry = info; - - BUG_ON(block < 0 || block >= INTEL_MSIC_BLOCK_LAST); - msic_pdata.irq[block] = entry->irq; - - return no_platform_data(info); -} - -static void *msic_battery_platform_data(void *info) -{ - return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_BATTERY); -} - -static void *msic_gpio_platform_data(void *info) -{ - static struct intel_msic_gpio_pdata pdata; - int gpio = get_gpio_by_name("msic_gpio_base"); - - if (gpio < 0) - return NULL; - - pdata.gpio_base = gpio; - msic_pdata.gpio = &pdata; - - return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_GPIO); -} - -static void *msic_audio_platform_data(void *info) -{ - struct platform_device *pdev; - - pdev = platform_device_register_simple("sst-platform", -1, NULL, 0); - if (IS_ERR(pdev)) { - pr_err("failed to create audio platform device\n"); - return NULL; - } - - return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_AUDIO); -} - -static void *msic_power_btn_platform_data(void *info) -{ - return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_POWER_BTN); -} - -static void *msic_ocd_platform_data(void *info) -{ - static struct intel_msic_ocd_pdata pdata; - int gpio = get_gpio_by_name("ocd_gpio"); - - if (gpio < 0) - return NULL; - - pdata.gpio = gpio; - msic_pdata.ocd = &pdata; - - return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_OCD); -} - -static void *msic_thermal_platform_data(void *info) -{ - return msic_generic_platform_data(info, INTEL_MSIC_BLOCK_THERMAL); -} - -/* tc35876x DSI-LVDS bridge chip and panel platform data */ -static void *tc35876x_platform_data(void *data) -{ - static struct tc35876x_platform_data pdata; - - /* gpio pins set to -1 will not be used by the driver */ - pdata.gpio_bridge_reset = get_gpio_by_name("LCMB_RXEN"); - pdata.gpio_panel_bl_en = get_gpio_by_name("6S6P_BL_EN"); - pdata.gpio_panel_vadd = get_gpio_by_name("EN_VREG_LCD_V3P3"); - - return &pdata; -} - -static const struct devs_id __initconst device_ids[] = { - {"bma023", SFI_DEV_TYPE_I2C, 1, &no_platform_data}, - {"pmic_gpio", SFI_DEV_TYPE_SPI, 1, &pmic_gpio_platform_data}, - {"pmic_gpio", SFI_DEV_TYPE_IPC, 1, &pmic_gpio_platform_data}, - {"spi_max3111", SFI_DEV_TYPE_SPI, 0, &max3111_platform_data}, - {"i2c_max7315", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data}, - {"i2c_max7315_2", SFI_DEV_TYPE_I2C, 1, &max7315_platform_data}, - {"tca6416", SFI_DEV_TYPE_I2C, 1, &tca6416_platform_data}, - {"emc1403", SFI_DEV_TYPE_I2C, 1, &emc1403_platform_data}, - {"i2c_accel", SFI_DEV_TYPE_I2C, 0, &lis331dl_platform_data}, - {"pmic_audio", SFI_DEV_TYPE_IPC, 1, &no_platform_data}, - {"mpu3050", SFI_DEV_TYPE_I2C, 1, &mpu3050_platform_data}, - {"i2c_disp_brig", SFI_DEV_TYPE_I2C, 0, &tc35876x_platform_data}, - - /* MSIC subdevices */ - {"msic_battery", SFI_DEV_TYPE_IPC, 1, &msic_battery_platform_data}, - {"msic_gpio", SFI_DEV_TYPE_IPC, 1, &msic_gpio_platform_data}, - {"msic_audio", SFI_DEV_TYPE_IPC, 1, &msic_audio_platform_data}, - {"msic_power_btn", SFI_DEV_TYPE_IPC, 1, &msic_power_btn_platform_data}, - {"msic_ocd", SFI_DEV_TYPE_IPC, 1, &msic_ocd_platform_data}, - {"msic_thermal", SFI_DEV_TYPE_IPC, 1, &msic_thermal_platform_data}, - - {}, -}; - -#define MAX_IPCDEVS 24 -static struct platform_device *ipc_devs[MAX_IPCDEVS]; -static int ipc_next_dev; - -#define MAX_SCU_SPI 24 -static struct spi_board_info *spi_devs[MAX_SCU_SPI]; -static int spi_next_dev; - -#define MAX_SCU_I2C 24 -static struct i2c_board_info *i2c_devs[MAX_SCU_I2C]; -static int i2c_bus[MAX_SCU_I2C]; -static int i2c_next_dev; - -static void __init intel_scu_device_register(struct platform_device *pdev) -{ - if(ipc_next_dev == MAX_IPCDEVS) - pr_err("too many SCU IPC devices"); - else - ipc_devs[ipc_next_dev++] = pdev; -} - -static void __init intel_scu_spi_device_register(struct spi_board_info *sdev) -{ - struct spi_board_info *new_dev; - - if (spi_next_dev == MAX_SCU_SPI) { - pr_err("too many SCU SPI devices"); - return; - } - - new_dev = kzalloc(sizeof(*sdev), GFP_KERNEL); - if (!new_dev) { - pr_err("failed to alloc mem for delayed spi dev %s\n", - sdev->modalias); - return; - } - memcpy(new_dev, sdev, sizeof(*sdev)); - - spi_devs[spi_next_dev++] = new_dev; -} - -static void __init intel_scu_i2c_device_register(int bus, - struct i2c_board_info *idev) -{ - struct i2c_board_info *new_dev; - - if (i2c_next_dev == MAX_SCU_I2C) { - pr_err("too many SCU I2C devices"); - return; - } - - new_dev = kzalloc(sizeof(*idev), GFP_KERNEL); - if (!new_dev) { - pr_err("failed to alloc mem for delayed i2c dev %s\n", - idev->type); - return; - } - memcpy(new_dev, idev, sizeof(*idev)); - - i2c_bus[i2c_next_dev] = bus; - i2c_devs[i2c_next_dev++] = new_dev; -} - -BLOCKING_NOTIFIER_HEAD(intel_scu_notifier); -EXPORT_SYMBOL_GPL(intel_scu_notifier); - -/* Called by IPC driver */ -void intel_scu_devices_create(void) -{ - int i; - - for (i = 0; i < ipc_next_dev; i++) - platform_device_add(ipc_devs[i]); - - for (i = 0; i < spi_next_dev; i++) - spi_register_board_info(spi_devs[i], 1); - - for (i = 0; i < i2c_next_dev; i++) { - struct i2c_adapter *adapter; - struct i2c_client *client; - - adapter = i2c_get_adapter(i2c_bus[i]); - if (adapter) { - client = i2c_new_device(adapter, i2c_devs[i]); - if (!client) - pr_err("can't create i2c device %s\n", - i2c_devs[i]->type); - } else - i2c_register_board_info(i2c_bus[i], i2c_devs[i], 1); - } - intel_scu_notifier_post(SCU_AVAILABLE, NULL); -} -EXPORT_SYMBOL_GPL(intel_scu_devices_create); - -/* Called by IPC driver */ -void intel_scu_devices_destroy(void) -{ - int i; - - intel_scu_notifier_post(SCU_DOWN, NULL); - - for (i = 0; i < ipc_next_dev; i++) - platform_device_del(ipc_devs[i]); -} -EXPORT_SYMBOL_GPL(intel_scu_devices_destroy); - -static void __init install_irq_resource(struct platform_device *pdev, int irq) -{ - /* Single threaded */ - static struct resource __initdata res = { - .name = "IRQ", - .flags = IORESOURCE_IRQ, - }; - res.start = irq; - platform_device_add_resources(pdev, &res, 1); -} - -static void __init sfi_handle_ipc_dev(struct sfi_device_table_entry *entry) -{ - const struct devs_id *dev = device_ids; - struct platform_device *pdev; - void *pdata = NULL; - - while (dev->name[0]) { - if (dev->type == SFI_DEV_TYPE_IPC && - !strncmp(dev->name, entry->name, SFI_NAME_LEN)) { - pdata = dev->get_platform_data(entry); - break; - } - dev++; - } - - /* - * On Medfield the platform device creation is handled by the MSIC - * MFD driver so we don't need to do it here. - */ - if (mrst_has_msic()) - return; - - pdev = platform_device_alloc(entry->name, 0); - if (pdev == NULL) { - pr_err("out of memory for SFI platform device '%s'.\n", - entry->name); - return; - } - install_irq_resource(pdev, entry->irq); - - pdev->dev.platform_data = pdata; - intel_scu_device_register(pdev); -} - -static void __init sfi_handle_spi_dev(struct spi_board_info *spi_info) -{ - const struct devs_id *dev = device_ids; - void *pdata = NULL; - - while (dev->name[0]) { - if (dev->type == SFI_DEV_TYPE_SPI && - !strncmp(dev->name, spi_info->modalias, SFI_NAME_LEN)) { - pdata = dev->get_platform_data(spi_info); - break; - } - dev++; - } - spi_info->platform_data = pdata; - if (dev->delay) - intel_scu_spi_device_register(spi_info); - else - spi_register_board_info(spi_info, 1); -} - -static void __init sfi_handle_i2c_dev(int bus, struct i2c_board_info *i2c_info) -{ - const struct devs_id *dev = device_ids; - void *pdata = NULL; - - while (dev->name[0]) { - if (dev->type == SFI_DEV_TYPE_I2C && - !strncmp(dev->name, i2c_info->type, SFI_NAME_LEN)) { - pdata = dev->get_platform_data(i2c_info); - break; - } - dev++; - } - i2c_info->platform_data = pdata; - - if (dev->delay) - intel_scu_i2c_device_register(bus, i2c_info); - else - i2c_register_board_info(bus, i2c_info, 1); - } - - -static int __init sfi_parse_devs(struct sfi_table_header *table) -{ - struct sfi_table_simple *sb; - struct sfi_device_table_entry *pentry; - struct spi_board_info spi_info; - struct i2c_board_info i2c_info; - int num, i, bus; - int ioapic; - struct io_apic_irq_attr irq_attr; - - sb = (struct sfi_table_simple *)table; - num = SFI_GET_NUM_ENTRIES(sb, struct sfi_device_table_entry); - pentry = (struct sfi_device_table_entry *)sb->pentry; - - for (i = 0; i < num; i++, pentry++) { - int irq = pentry->irq; - - if (irq != (u8)0xff) { /* native RTE case */ - /* these SPI2 devices are not exposed to system as PCI - * devices, but they have separate RTE entry in IOAPIC - * so we have to enable them one by one here - */ - ioapic = mp_find_ioapic(irq); - irq_attr.ioapic = ioapic; - irq_attr.ioapic_pin = irq; - irq_attr.trigger = 1; - irq_attr.polarity = 1; - io_apic_set_pci_routing(NULL, irq, &irq_attr); - } else - irq = 0; /* No irq */ - - switch (pentry->type) { - case SFI_DEV_TYPE_IPC: - pr_debug("info[%2d]: IPC bus, name = %16.16s, " - "irq = 0x%2x\n", i, pentry->name, pentry->irq); - sfi_handle_ipc_dev(pentry); - break; - case SFI_DEV_TYPE_SPI: - memset(&spi_info, 0, sizeof(spi_info)); - strncpy(spi_info.modalias, pentry->name, SFI_NAME_LEN); - spi_info.irq = irq; - spi_info.bus_num = pentry->host_num; - spi_info.chip_select = pentry->addr; - spi_info.max_speed_hz = pentry->max_freq; - pr_debug("info[%2d]: SPI bus = %d, name = %16.16s, " - "irq = 0x%2x, max_freq = %d, cs = %d\n", i, - spi_info.bus_num, - spi_info.modalias, - spi_info.irq, - spi_info.max_speed_hz, - spi_info.chip_select); - sfi_handle_spi_dev(&spi_info); - break; - case SFI_DEV_TYPE_I2C: - memset(&i2c_info, 0, sizeof(i2c_info)); - bus = pentry->host_num; - strncpy(i2c_info.type, pentry->name, SFI_NAME_LEN); - i2c_info.irq = irq; - i2c_info.addr = pentry->addr; - pr_debug("info[%2d]: I2C bus = %d, name = %16.16s, " - "irq = 0x%2x, addr = 0x%x\n", i, bus, - i2c_info.type, - i2c_info.irq, - i2c_info.addr); - sfi_handle_i2c_dev(bus, &i2c_info); - break; - case SFI_DEV_TYPE_UART: - case SFI_DEV_TYPE_HSI: - default: - ; - } - } - return 0; -} - -static int __init mrst_platform_init(void) -{ - sfi_table_parse(SFI_SIG_GPIO, NULL, NULL, sfi_parse_gpio); - sfi_table_parse(SFI_SIG_DEVS, NULL, NULL, sfi_parse_devs); - return 0; -} -arch_initcall(mrst_platform_init); - -/* - * we will search these buttons in SFI GPIO table (by name) - * and register them dynamically. Please add all possible - * buttons here, we will shrink them if no GPIO found. - */ -static struct gpio_keys_button gpio_button[] = { - {KEY_POWER, -1, 1, "power_btn", EV_KEY, 0, 3000}, - {KEY_PROG1, -1, 1, "prog_btn1", EV_KEY, 0, 20}, - {KEY_PROG2, -1, 1, "prog_btn2", EV_KEY, 0, 20}, - {SW_LID, -1, 1, "lid_switch", EV_SW, 0, 20}, - {KEY_VOLUMEUP, -1, 1, "vol_up", EV_KEY, 0, 20}, - {KEY_VOLUMEDOWN, -1, 1, "vol_down", EV_KEY, 0, 20}, - {KEY_CAMERA, -1, 1, "camera_full", EV_KEY, 0, 20}, - {KEY_CAMERA_FOCUS, -1, 1, "camera_half", EV_KEY, 0, 20}, - {SW_KEYPAD_SLIDE, -1, 1, "MagSw1", EV_SW, 0, 20}, - {SW_KEYPAD_SLIDE, -1, 1, "MagSw2", EV_SW, 0, 20}, -}; - -static struct gpio_keys_platform_data mrst_gpio_keys = { - .buttons = gpio_button, - .rep = 1, - .nbuttons = -1, /* will fill it after search */ -}; - -static struct platform_device pb_device = { - .name = "gpio-keys", - .id = -1, - .dev = { - .platform_data = &mrst_gpio_keys, - }, -}; - -/* - * Shrink the non-existent buttons, register the gpio button - * device if there is some - */ -static int __init pb_keys_init(void) -{ - struct gpio_keys_button *gb = gpio_button; - int i, num, good = 0; - - num = sizeof(gpio_button) / sizeof(struct gpio_keys_button); - for (i = 0; i < num; i++) { - gb[i].gpio = get_gpio_by_name(gb[i].desc); - pr_debug("info[%2d]: name = %s, gpio = %d\n", i, gb[i].desc, gb[i].gpio); - if (gb[i].gpio == -1) - continue; - - if (i != good) - gb[good] = gb[i]; - good++; - } - - if (good) { - mrst_gpio_keys.nbuttons = good; - return platform_device_register(&pb_device); - } - return 0; -} -late_initcall(pb_keys_init); diff --git a/ANDROID_3.4.5/arch/x86/platform/mrst/vrtc.c b/ANDROID_3.4.5/arch/x86/platform/mrst/vrtc.c deleted file mode 100644 index 225bd0f0..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/mrst/vrtc.c +++ /dev/null @@ -1,169 +0,0 @@ -/* - * vrtc.c: Driver for virtual RTC device on Intel MID platform - * - * (C) Copyright 2009 Intel Corporation - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; version 2 - * of the License. - * - * Note: - * VRTC is emulated by system controller firmware, the real HW - * RTC is located in the PMIC device. SCU FW shadows PMIC RTC - * in a memory mapped IO space that is visible to the host IA - * processor. - * - * This driver is based on RTC CMOS driver. - */ - -#include <linux/kernel.h> -#include <linux/export.h> -#include <linux/init.h> -#include <linux/sfi.h> -#include <linux/platform_device.h> - -#include <asm/mrst.h> -#include <asm/mrst-vrtc.h> -#include <asm/time.h> -#include <asm/fixmap.h> - -static unsigned char __iomem *vrtc_virt_base; - -unsigned char vrtc_cmos_read(unsigned char reg) -{ - unsigned char retval; - - /* vRTC's registers range from 0x0 to 0xD */ - if (reg > 0xd || !vrtc_virt_base) - return 0xff; - - lock_cmos_prefix(reg); - retval = __raw_readb(vrtc_virt_base + (reg << 2)); - lock_cmos_suffix(reg); - return retval; -} -EXPORT_SYMBOL_GPL(vrtc_cmos_read); - -void vrtc_cmos_write(unsigned char val, unsigned char reg) -{ - if (reg > 0xd || !vrtc_virt_base) - return; - - lock_cmos_prefix(reg); - __raw_writeb(val, vrtc_virt_base + (reg << 2)); - lock_cmos_suffix(reg); -} -EXPORT_SYMBOL_GPL(vrtc_cmos_write); - -unsigned long vrtc_get_time(void) -{ - u8 sec, min, hour, mday, mon; - unsigned long flags; - u32 year; - - spin_lock_irqsave(&rtc_lock, flags); - - while ((vrtc_cmos_read(RTC_FREQ_SELECT) & RTC_UIP)) - cpu_relax(); - - sec = vrtc_cmos_read(RTC_SECONDS); - min = vrtc_cmos_read(RTC_MINUTES); - hour = vrtc_cmos_read(RTC_HOURS); - mday = vrtc_cmos_read(RTC_DAY_OF_MONTH); - mon = vrtc_cmos_read(RTC_MONTH); - year = vrtc_cmos_read(RTC_YEAR); - - spin_unlock_irqrestore(&rtc_lock, flags); - - /* vRTC YEAR reg contains the offset to 1972 */ - year += 1972; - - printk(KERN_INFO "vRTC: sec: %d min: %d hour: %d day: %d " - "mon: %d year: %d\n", sec, min, hour, mday, mon, year); - - return mktime(year, mon, mday, hour, min, sec); -} - -/* Only care about the minutes and seconds */ -int vrtc_set_mmss(unsigned long nowtime) -{ - int real_sec, real_min; - unsigned long flags; - int vrtc_min; - - spin_lock_irqsave(&rtc_lock, flags); - vrtc_min = vrtc_cmos_read(RTC_MINUTES); - - real_sec = nowtime % 60; - real_min = nowtime / 60; - if (((abs(real_min - vrtc_min) + 15)/30) & 1) - real_min += 30; - real_min %= 60; - - vrtc_cmos_write(real_sec, RTC_SECONDS); - vrtc_cmos_write(real_min, RTC_MINUTES); - spin_unlock_irqrestore(&rtc_lock, flags); - - return 0; -} - -void __init mrst_rtc_init(void) -{ - unsigned long vrtc_paddr; - - sfi_table_parse(SFI_SIG_MRTC, NULL, NULL, sfi_parse_mrtc); - - vrtc_paddr = sfi_mrtc_array[0].phys_addr; - if (!sfi_mrtc_num || !vrtc_paddr) - return; - - vrtc_virt_base = (void __iomem *)set_fixmap_offset_nocache(FIX_LNW_VRTC, - vrtc_paddr); - x86_platform.get_wallclock = vrtc_get_time; - x86_platform.set_wallclock = vrtc_set_mmss; -} - -/* - * The Moorestown platform has a memory mapped virtual RTC device that emulates - * the programming interface of the RTC. - */ - -static struct resource vrtc_resources[] = { - [0] = { - .flags = IORESOURCE_MEM, - }, - [1] = { - .flags = IORESOURCE_IRQ, - } -}; - -static struct platform_device vrtc_device = { - .name = "rtc_mrst", - .id = -1, - .resource = vrtc_resources, - .num_resources = ARRAY_SIZE(vrtc_resources), -}; - -/* Register the RTC device if appropriate */ -static int __init mrst_device_create(void) -{ - /* No Moorestown, no device */ - if (!mrst_identify_cpu()) - return -ENODEV; - /* No timer, no device */ - if (!sfi_mrtc_num) - return -ENODEV; - - /* iomem resource */ - vrtc_resources[0].start = sfi_mrtc_array[0].phys_addr; - vrtc_resources[0].end = sfi_mrtc_array[0].phys_addr + - MRST_VRTC_MAP_SZ; - /* irq resource */ - vrtc_resources[1].start = sfi_mrtc_array[0].irq; - vrtc_resources[1].end = sfi_mrtc_array[0].irq; - - return platform_device_register(&vrtc_device); -} - -module_init(mrst_device_create); diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/Makefile b/ANDROID_3.4.5/arch/x86/platform/olpc/Makefile deleted file mode 100644 index fd332c53..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -obj-$(CONFIG_OLPC) += olpc.o olpc_ofw.o olpc_dt.o -obj-$(CONFIG_OLPC_XO1_PM) += olpc-xo1-pm.o xo1-wakeup.o -obj-$(CONFIG_OLPC_XO1_RTC) += olpc-xo1-rtc.o -obj-$(CONFIG_OLPC_XO1_SCI) += olpc-xo1-sci.o -obj-$(CONFIG_OLPC_XO15_SCI) += olpc-xo15-sci.o diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-pm.c b/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-pm.c deleted file mode 100644 index 0ce8616c..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-pm.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * Support for power management features of the OLPC XO-1 laptop - * - * Copyright (C) 2010 Andres Salomon <dilinger@queued.net> - * Copyright (C) 2010 One Laptop per Child - * Copyright (C) 2006 Red Hat, Inc. - * Copyright (C) 2006 Advanced Micro Devices, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/cs5535.h> -#include <linux/platform_device.h> -#include <linux/export.h> -#include <linux/pm.h> -#include <linux/mfd/core.h> -#include <linux/suspend.h> - -#include <asm/io.h> -#include <asm/olpc.h> - -#define DRV_NAME "olpc-xo1-pm" - -static unsigned long acpi_base; -static unsigned long pms_base; - -static u16 wakeup_mask = CS5536_PM_PWRBTN; - -static struct { - unsigned long address; - unsigned short segment; -} ofw_bios_entry = { 0xF0000 + PAGE_OFFSET, __KERNEL_CS }; - -/* Set bits in the wakeup mask */ -void olpc_xo1_pm_wakeup_set(u16 value) -{ - wakeup_mask |= value; -} -EXPORT_SYMBOL_GPL(olpc_xo1_pm_wakeup_set); - -/* Clear bits in the wakeup mask */ -void olpc_xo1_pm_wakeup_clear(u16 value) -{ - wakeup_mask &= ~value; -} -EXPORT_SYMBOL_GPL(olpc_xo1_pm_wakeup_clear); - -static int xo1_power_state_enter(suspend_state_t pm_state) -{ - unsigned long saved_sci_mask; - int r; - - /* Only STR is supported */ - if (pm_state != PM_SUSPEND_MEM) - return -EINVAL; - - r = olpc_ec_cmd(EC_SET_SCI_INHIBIT, NULL, 0, NULL, 0); - if (r) - return r; - - /* - * Save SCI mask (this gets lost since PM1_EN is used as a mask for - * wakeup events, which is not necessarily the same event set) - */ - saved_sci_mask = inl(acpi_base + CS5536_PM1_STS); - saved_sci_mask &= 0xffff0000; - - /* Save CPU state */ - do_olpc_suspend_lowlevel(); - - /* Resume path starts here */ - - /* Restore SCI mask (using dword access to CS5536_PM1_EN) */ - outl(saved_sci_mask, acpi_base + CS5536_PM1_STS); - - /* Tell the EC to stop inhibiting SCIs */ - olpc_ec_cmd(EC_SET_SCI_INHIBIT_RELEASE, NULL, 0, NULL, 0); - - /* - * Tell the wireless module to restart USB communication. - * Must be done twice. - */ - olpc_ec_cmd(EC_WAKE_UP_WLAN, NULL, 0, NULL, 0); - olpc_ec_cmd(EC_WAKE_UP_WLAN, NULL, 0, NULL, 0); - - return 0; -} - -asmlinkage int xo1_do_sleep(u8 sleep_state) -{ - void *pgd_addr = __va(read_cr3()); - - /* Program wakeup mask (using dword access to CS5536_PM1_EN) */ - outl(wakeup_mask << 16, acpi_base + CS5536_PM1_STS); - - __asm__("movl %0,%%eax" : : "r" (pgd_addr)); - __asm__("call *(%%edi); cld" - : : "D" (&ofw_bios_entry)); - __asm__("movb $0x34, %al\n\t" - "outb %al, $0x70\n\t" - "movb $0x30, %al\n\t" - "outb %al, $0x71\n\t"); - return 0; -} - -static void xo1_power_off(void) -{ - printk(KERN_INFO "OLPC XO-1 power off sequence...\n"); - - /* Enable all of these controls with 0 delay */ - outl(0x40000000, pms_base + CS5536_PM_SCLK); - outl(0x40000000, pms_base + CS5536_PM_IN_SLPCTL); - outl(0x40000000, pms_base + CS5536_PM_WKXD); - outl(0x40000000, pms_base + CS5536_PM_WKD); - - /* Clear status bits (possibly unnecessary) */ - outl(0x0002ffff, pms_base + CS5536_PM_SSC); - outl(0xffffffff, acpi_base + CS5536_PM_GPE0_STS); - - /* Write SLP_EN bit to start the machinery */ - outl(0x00002000, acpi_base + CS5536_PM1_CNT); -} - -static int xo1_power_state_valid(suspend_state_t pm_state) -{ - /* suspend-to-RAM only */ - return pm_state == PM_SUSPEND_MEM; -} - -static const struct platform_suspend_ops xo1_suspend_ops = { - .valid = xo1_power_state_valid, - .enter = xo1_power_state_enter, -}; - -static int __devinit xo1_pm_probe(struct platform_device *pdev) -{ - struct resource *res; - int err; - - /* don't run on non-XOs */ - if (!machine_is_olpc()) - return -ENODEV; - - err = mfd_cell_enable(pdev); - if (err) - return err; - - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!res) { - dev_err(&pdev->dev, "can't fetch device resource info\n"); - return -EIO; - } - if (strcmp(pdev->name, "cs5535-pms") == 0) - pms_base = res->start; - else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0) - acpi_base = res->start; - - /* If we have both addresses, we can override the poweroff hook */ - if (pms_base && acpi_base) { - suspend_set_ops(&xo1_suspend_ops); - pm_power_off = xo1_power_off; - printk(KERN_INFO "OLPC XO-1 support registered\n"); - } - - return 0; -} - -static int __devexit xo1_pm_remove(struct platform_device *pdev) -{ - mfd_cell_disable(pdev); - - if (strcmp(pdev->name, "cs5535-pms") == 0) - pms_base = 0; - else if (strcmp(pdev->name, "olpc-xo1-pm-acpi") == 0) - acpi_base = 0; - - pm_power_off = NULL; - return 0; -} - -static struct platform_driver cs5535_pms_driver = { - .driver = { - .name = "cs5535-pms", - .owner = THIS_MODULE, - }, - .probe = xo1_pm_probe, - .remove = __devexit_p(xo1_pm_remove), -}; - -static struct platform_driver cs5535_acpi_driver = { - .driver = { - .name = "olpc-xo1-pm-acpi", - .owner = THIS_MODULE, - }, - .probe = xo1_pm_probe, - .remove = __devexit_p(xo1_pm_remove), -}; - -static int __init xo1_pm_init(void) -{ - int r; - - r = platform_driver_register(&cs5535_pms_driver); - if (r) - return r; - - r = platform_driver_register(&cs5535_acpi_driver); - if (r) - platform_driver_unregister(&cs5535_pms_driver); - - return r; -} -arch_initcall(xo1_pm_init); diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-rtc.c b/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-rtc.c deleted file mode 100644 index a2b4efdd..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-rtc.c +++ /dev/null @@ -1,81 +0,0 @@ -/* - * Support for OLPC XO-1 Real Time Clock (RTC) - * - * Copyright (C) 2011 One Laptop per Child - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/mc146818rtc.h> -#include <linux/platform_device.h> -#include <linux/rtc.h> -#include <linux/of.h> - -#include <asm/msr.h> -#include <asm/olpc.h> - -static void rtc_wake_on(struct device *dev) -{ - olpc_xo1_pm_wakeup_set(CS5536_PM_RTC); -} - -static void rtc_wake_off(struct device *dev) -{ - olpc_xo1_pm_wakeup_clear(CS5536_PM_RTC); -} - -static struct resource rtc_platform_resource[] = { - [0] = { - .start = RTC_PORT(0), - .end = RTC_PORT(1), - .flags = IORESOURCE_IO, - }, - [1] = { - .start = RTC_IRQ, - .end = RTC_IRQ, - .flags = IORESOURCE_IRQ, - } -}; - -static struct cmos_rtc_board_info rtc_info = { - .rtc_day_alarm = 0, - .rtc_mon_alarm = 0, - .rtc_century = 0, - .wake_on = rtc_wake_on, - .wake_off = rtc_wake_off, -}; - -static struct platform_device xo1_rtc_device = { - .name = "rtc_cmos", - .id = -1, - .num_resources = ARRAY_SIZE(rtc_platform_resource), - .dev.platform_data = &rtc_info, - .resource = rtc_platform_resource, -}; - -static int __init xo1_rtc_init(void) -{ - int r; - struct device_node *node; - - node = of_find_compatible_node(NULL, NULL, "olpc,xo1-rtc"); - if (!node) - return 0; - of_node_put(node); - - pr_info("olpc-xo1-rtc: Initializing OLPC XO-1 RTC\n"); - rdmsrl(MSR_RTC_DOMA_OFFSET, rtc_info.rtc_day_alarm); - rdmsrl(MSR_RTC_MONA_OFFSET, rtc_info.rtc_mon_alarm); - rdmsrl(MSR_RTC_CEN_OFFSET, rtc_info.rtc_century); - - r = platform_device_register(&xo1_rtc_device); - if (r) - return r; - - device_init_wakeup(&xo1_rtc_device.dev, 1); - return 0; -} -arch_initcall(xo1_rtc_init); diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-sci.c b/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-sci.c deleted file mode 100644 index 1d4c783d..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo1-sci.c +++ /dev/null @@ -1,614 +0,0 @@ -/* - * Support for OLPC XO-1 System Control Interrupts (SCI) - * - * Copyright (C) 2010 One Laptop per Child - * Copyright (C) 2006 Red Hat, Inc. - * Copyright (C) 2006 Advanced Micro Devices, Inc. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/cs5535.h> -#include <linux/device.h> -#include <linux/gpio.h> -#include <linux/input.h> -#include <linux/interrupt.h> -#include <linux/platform_device.h> -#include <linux/pm.h> -#include <linux/mfd/core.h> -#include <linux/power_supply.h> -#include <linux/suspend.h> -#include <linux/workqueue.h> - -#include <asm/io.h> -#include <asm/msr.h> -#include <asm/olpc.h> - -#define DRV_NAME "olpc-xo1-sci" -#define PFX DRV_NAME ": " - -static unsigned long acpi_base; -static struct input_dev *power_button_idev; -static struct input_dev *ebook_switch_idev; -static struct input_dev *lid_switch_idev; - -static int sci_irq; - -static bool lid_open; -static bool lid_inverted; -static int lid_wake_mode; - -enum lid_wake_modes { - LID_WAKE_ALWAYS, - LID_WAKE_OPEN, - LID_WAKE_CLOSE, -}; - -static const char * const lid_wake_mode_names[] = { - [LID_WAKE_ALWAYS] = "always", - [LID_WAKE_OPEN] = "open", - [LID_WAKE_CLOSE] = "close", -}; - -static void battery_status_changed(void) -{ - struct power_supply *psy = power_supply_get_by_name("olpc-battery"); - - if (psy) { - power_supply_changed(psy); - put_device(psy->dev); - } -} - -static void ac_status_changed(void) -{ - struct power_supply *psy = power_supply_get_by_name("olpc-ac"); - - if (psy) { - power_supply_changed(psy); - put_device(psy->dev); - } -} - -/* Report current ebook switch state through input layer */ -static void send_ebook_state(void) -{ - unsigned char state; - - if (olpc_ec_cmd(EC_READ_EB_MODE, NULL, 0, &state, 1)) { - pr_err(PFX "failed to get ebook state\n"); - return; - } - - input_report_switch(ebook_switch_idev, SW_TABLET_MODE, state); - input_sync(ebook_switch_idev); -} - -static void flip_lid_inverter(void) -{ - /* gpio is high; invert so we'll get l->h event interrupt */ - if (lid_inverted) - cs5535_gpio_clear(OLPC_GPIO_LID, GPIO_INPUT_INVERT); - else - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_INPUT_INVERT); - lid_inverted = !lid_inverted; -} - -static void detect_lid_state(void) -{ - /* - * the edge detector hookup on the gpio inputs on the geode is - * odd, to say the least. See http://dev.laptop.org/ticket/5703 - * for details, but in a nutshell: we don't use the edge - * detectors. instead, we make use of an anomoly: with the both - * edge detectors turned off, we still get an edge event on a - * positive edge transition. to take advantage of this, we use the - * front-end inverter to ensure that that's the edge we're always - * going to see next. - */ - - int state; - - state = cs5535_gpio_isset(OLPC_GPIO_LID, GPIO_READ_BACK); - lid_open = !state ^ !lid_inverted; /* x ^^ y */ - if (!state) - return; - - flip_lid_inverter(); -} - -/* Report current lid switch state through input layer */ -static void send_lid_state(void) -{ - input_report_switch(lid_switch_idev, SW_LID, !lid_open); - input_sync(lid_switch_idev); -} - -static ssize_t lid_wake_mode_show(struct device *dev, - struct device_attribute *attr, char *buf) -{ - const char *mode = lid_wake_mode_names[lid_wake_mode]; - return sprintf(buf, "%s\n", mode); -} -static ssize_t lid_wake_mode_set(struct device *dev, - struct device_attribute *attr, - const char *buf, size_t count) -{ - int i; - for (i = 0; i < ARRAY_SIZE(lid_wake_mode_names); i++) { - const char *mode = lid_wake_mode_names[i]; - if (strlen(mode) != count || strncasecmp(mode, buf, count)) - continue; - - lid_wake_mode = i; - return count; - } - return -EINVAL; -} -static DEVICE_ATTR(lid_wake_mode, S_IWUSR | S_IRUGO, lid_wake_mode_show, - lid_wake_mode_set); - -/* - * Process all items in the EC's SCI queue. - * - * This is handled in a workqueue because olpc_ec_cmd can be slow (and - * can even timeout). - * - * If propagate_events is false, the queue is drained without events being - * generated for the interrupts. - */ -static void process_sci_queue(bool propagate_events) -{ - int r; - u16 data; - - do { - r = olpc_ec_sci_query(&data); - if (r || !data) - break; - - pr_debug(PFX "SCI 0x%x received\n", data); - - switch (data) { - case EC_SCI_SRC_BATERR: - case EC_SCI_SRC_BATSOC: - case EC_SCI_SRC_BATTERY: - case EC_SCI_SRC_BATCRIT: - battery_status_changed(); - break; - case EC_SCI_SRC_ACPWR: - ac_status_changed(); - break; - } - - if (data == EC_SCI_SRC_EBOOK && propagate_events) - send_ebook_state(); - } while (data); - - if (r) - pr_err(PFX "Failed to clear SCI queue"); -} - -static void process_sci_queue_work(struct work_struct *work) -{ - process_sci_queue(true); -} - -static DECLARE_WORK(sci_work, process_sci_queue_work); - -static irqreturn_t xo1_sci_intr(int irq, void *dev_id) -{ - struct platform_device *pdev = dev_id; - u32 sts; - u32 gpe; - - sts = inl(acpi_base + CS5536_PM1_STS); - outl(sts | 0xffff, acpi_base + CS5536_PM1_STS); - - gpe = inl(acpi_base + CS5536_PM_GPE0_STS); - outl(0xffffffff, acpi_base + CS5536_PM_GPE0_STS); - - dev_dbg(&pdev->dev, "sts %x gpe %x\n", sts, gpe); - - if (sts & CS5536_PWRBTN_FLAG && !(sts & CS5536_WAK_FLAG)) { - input_report_key(power_button_idev, KEY_POWER, 1); - input_sync(power_button_idev); - input_report_key(power_button_idev, KEY_POWER, 0); - input_sync(power_button_idev); - } - - if (gpe & CS5536_GPIOM7_PME_FLAG) { /* EC GPIO */ - cs5535_gpio_set(OLPC_GPIO_ECSCI, GPIO_NEGATIVE_EDGE_STS); - schedule_work(&sci_work); - } - - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_NEGATIVE_EDGE_STS); - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_POSITIVE_EDGE_STS); - detect_lid_state(); - send_lid_state(); - - return IRQ_HANDLED; -} - -static int xo1_sci_suspend(struct platform_device *pdev, pm_message_t state) -{ - if (device_may_wakeup(&power_button_idev->dev)) - olpc_xo1_pm_wakeup_set(CS5536_PM_PWRBTN); - else - olpc_xo1_pm_wakeup_clear(CS5536_PM_PWRBTN); - - if (device_may_wakeup(&ebook_switch_idev->dev)) - olpc_ec_wakeup_set(EC_SCI_SRC_EBOOK); - else - olpc_ec_wakeup_clear(EC_SCI_SRC_EBOOK); - - if (!device_may_wakeup(&lid_switch_idev->dev)) { - cs5535_gpio_clear(OLPC_GPIO_LID, GPIO_EVENTS_ENABLE); - } else if ((lid_open && lid_wake_mode == LID_WAKE_OPEN) || - (!lid_open && lid_wake_mode == LID_WAKE_CLOSE)) { - flip_lid_inverter(); - - /* we may have just caused an event */ - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_NEGATIVE_EDGE_STS); - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_POSITIVE_EDGE_STS); - - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_EVENTS_ENABLE); - } - - return 0; -} - -static int xo1_sci_resume(struct platform_device *pdev) -{ - /* - * We don't know what may have happened while we were asleep. - * Reestablish our lid setup so we're sure to catch all transitions. - */ - detect_lid_state(); - send_lid_state(); - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_EVENTS_ENABLE); - - /* Enable all EC events */ - olpc_ec_mask_write(EC_SCI_SRC_ALL); - - /* Power/battery status might have changed too */ - battery_status_changed(); - ac_status_changed(); - return 0; -} - -static int __devinit setup_sci_interrupt(struct platform_device *pdev) -{ - u32 lo, hi; - u32 sts; - int r; - - rdmsr(0x51400020, lo, hi); - sci_irq = (lo >> 20) & 15; - - if (sci_irq) { - dev_info(&pdev->dev, "SCI is mapped to IRQ %d\n", sci_irq); - } else { - /* Zero means masked */ - dev_info(&pdev->dev, "SCI unmapped. Mapping to IRQ 3\n"); - sci_irq = 3; - lo |= 0x00300000; - wrmsrl(0x51400020, lo); - } - - /* Select level triggered in PIC */ - if (sci_irq < 8) { - lo = inb(CS5536_PIC_INT_SEL1); - lo |= 1 << sci_irq; - outb(lo, CS5536_PIC_INT_SEL1); - } else { - lo = inb(CS5536_PIC_INT_SEL2); - lo |= 1 << (sci_irq - 8); - outb(lo, CS5536_PIC_INT_SEL2); - } - - /* Enable SCI from power button, and clear pending interrupts */ - sts = inl(acpi_base + CS5536_PM1_STS); - outl((CS5536_PM_PWRBTN << 16) | 0xffff, acpi_base + CS5536_PM1_STS); - - r = request_irq(sci_irq, xo1_sci_intr, 0, DRV_NAME, pdev); - if (r) - dev_err(&pdev->dev, "can't request interrupt\n"); - - return r; -} - -static int __devinit setup_ec_sci(void) -{ - int r; - - r = gpio_request(OLPC_GPIO_ECSCI, "OLPC-ECSCI"); - if (r) - return r; - - gpio_direction_input(OLPC_GPIO_ECSCI); - - /* Clear pending EC SCI events */ - cs5535_gpio_set(OLPC_GPIO_ECSCI, GPIO_NEGATIVE_EDGE_STS); - cs5535_gpio_set(OLPC_GPIO_ECSCI, GPIO_POSITIVE_EDGE_STS); - - /* - * Enable EC SCI events, and map them to both a PME and the SCI - * interrupt. - * - * Ordinarily, in addition to functioning as GPIOs, Geode GPIOs can - * be mapped to regular interrupts *or* Geode-specific Power - * Management Events (PMEs) - events that bring the system out of - * suspend. In this case, we want both of those things - the system - * wakeup, *and* the ability to get an interrupt when an event occurs. - * - * To achieve this, we map the GPIO to a PME, and then we use one - * of the many generic knobs on the CS5535 PIC to additionally map the - * PME to the regular SCI interrupt line. - */ - cs5535_gpio_set(OLPC_GPIO_ECSCI, GPIO_EVENTS_ENABLE); - - /* Set the SCI to cause a PME event on group 7 */ - cs5535_gpio_setup_event(OLPC_GPIO_ECSCI, 7, 1); - - /* And have group 7 also fire the SCI interrupt */ - cs5535_pic_unreqz_select_high(7, sci_irq); - - return 0; -} - -static void free_ec_sci(void) -{ - gpio_free(OLPC_GPIO_ECSCI); -} - -static int __devinit setup_lid_events(void) -{ - int r; - - r = gpio_request(OLPC_GPIO_LID, "OLPC-LID"); - if (r) - return r; - - gpio_direction_input(OLPC_GPIO_LID); - - cs5535_gpio_clear(OLPC_GPIO_LID, GPIO_INPUT_INVERT); - lid_inverted = 0; - - /* Clear edge detection and event enable for now */ - cs5535_gpio_clear(OLPC_GPIO_LID, GPIO_EVENTS_ENABLE); - cs5535_gpio_clear(OLPC_GPIO_LID, GPIO_NEGATIVE_EDGE_EN); - cs5535_gpio_clear(OLPC_GPIO_LID, GPIO_POSITIVE_EDGE_EN); - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_NEGATIVE_EDGE_STS); - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_POSITIVE_EDGE_STS); - - /* Set the LID to cause an PME event on group 6 */ - cs5535_gpio_setup_event(OLPC_GPIO_LID, 6, 1); - - /* Set PME group 6 to fire the SCI interrupt */ - cs5535_gpio_set_irq(6, sci_irq); - - /* Enable the event */ - cs5535_gpio_set(OLPC_GPIO_LID, GPIO_EVENTS_ENABLE); - - return 0; -} - -static void free_lid_events(void) -{ - gpio_free(OLPC_GPIO_LID); -} - -static int __devinit setup_power_button(struct platform_device *pdev) -{ - int r; - - power_button_idev = input_allocate_device(); - if (!power_button_idev) - return -ENOMEM; - - power_button_idev->name = "Power Button"; - power_button_idev->phys = DRV_NAME "/input0"; - set_bit(EV_KEY, power_button_idev->evbit); - set_bit(KEY_POWER, power_button_idev->keybit); - - power_button_idev->dev.parent = &pdev->dev; - device_init_wakeup(&power_button_idev->dev, 1); - - r = input_register_device(power_button_idev); - if (r) { - dev_err(&pdev->dev, "failed to register power button: %d\n", r); - input_free_device(power_button_idev); - } - - return r; -} - -static void free_power_button(void) -{ - input_unregister_device(power_button_idev); - input_free_device(power_button_idev); -} - -static int __devinit setup_ebook_switch(struct platform_device *pdev) -{ - int r; - - ebook_switch_idev = input_allocate_device(); - if (!ebook_switch_idev) - return -ENOMEM; - - ebook_switch_idev->name = "EBook Switch"; - ebook_switch_idev->phys = DRV_NAME "/input1"; - set_bit(EV_SW, ebook_switch_idev->evbit); - set_bit(SW_TABLET_MODE, ebook_switch_idev->swbit); - - ebook_switch_idev->dev.parent = &pdev->dev; - device_set_wakeup_capable(&ebook_switch_idev->dev, true); - - r = input_register_device(ebook_switch_idev); - if (r) { - dev_err(&pdev->dev, "failed to register ebook switch: %d\n", r); - input_free_device(ebook_switch_idev); - } - - return r; -} - -static void free_ebook_switch(void) -{ - input_unregister_device(ebook_switch_idev); - input_free_device(ebook_switch_idev); -} - -static int __devinit setup_lid_switch(struct platform_device *pdev) -{ - int r; - - lid_switch_idev = input_allocate_device(); - if (!lid_switch_idev) - return -ENOMEM; - - lid_switch_idev->name = "Lid Switch"; - lid_switch_idev->phys = DRV_NAME "/input2"; - set_bit(EV_SW, lid_switch_idev->evbit); - set_bit(SW_LID, lid_switch_idev->swbit); - - lid_switch_idev->dev.parent = &pdev->dev; - device_set_wakeup_capable(&lid_switch_idev->dev, true); - - r = input_register_device(lid_switch_idev); - if (r) { - dev_err(&pdev->dev, "failed to register lid switch: %d\n", r); - goto err_register; - } - - r = device_create_file(&lid_switch_idev->dev, &dev_attr_lid_wake_mode); - if (r) { - dev_err(&pdev->dev, "failed to create wake mode attr: %d\n", r); - goto err_create_attr; - } - - return 0; - -err_create_attr: - input_unregister_device(lid_switch_idev); -err_register: - input_free_device(lid_switch_idev); - return r; -} - -static void free_lid_switch(void) -{ - device_remove_file(&lid_switch_idev->dev, &dev_attr_lid_wake_mode); - input_unregister_device(lid_switch_idev); - input_free_device(lid_switch_idev); -} - -static int __devinit xo1_sci_probe(struct platform_device *pdev) -{ - struct resource *res; - int r; - - /* don't run on non-XOs */ - if (!machine_is_olpc()) - return -ENODEV; - - r = mfd_cell_enable(pdev); - if (r) - return r; - - res = platform_get_resource(pdev, IORESOURCE_IO, 0); - if (!res) { - dev_err(&pdev->dev, "can't fetch device resource info\n"); - return -EIO; - } - acpi_base = res->start; - - r = setup_power_button(pdev); - if (r) - return r; - - r = setup_ebook_switch(pdev); - if (r) - goto err_ebook; - - r = setup_lid_switch(pdev); - if (r) - goto err_lid; - - r = setup_lid_events(); - if (r) - goto err_lidevt; - - r = setup_ec_sci(); - if (r) - goto err_ecsci; - - /* Enable PME generation for EC-generated events */ - outl(CS5536_GPIOM6_PME_EN | CS5536_GPIOM7_PME_EN, - acpi_base + CS5536_PM_GPE0_EN); - - /* Clear pending events */ - outl(0xffffffff, acpi_base + CS5536_PM_GPE0_STS); - process_sci_queue(false); - - /* Initial sync */ - send_ebook_state(); - detect_lid_state(); - send_lid_state(); - - r = setup_sci_interrupt(pdev); - if (r) - goto err_sci; - - /* Enable all EC events */ - olpc_ec_mask_write(EC_SCI_SRC_ALL); - - return r; - -err_sci: - free_ec_sci(); -err_ecsci: - free_lid_events(); -err_lidevt: - free_lid_switch(); -err_lid: - free_ebook_switch(); -err_ebook: - free_power_button(); - return r; -} - -static int __devexit xo1_sci_remove(struct platform_device *pdev) -{ - mfd_cell_disable(pdev); - free_irq(sci_irq, pdev); - cancel_work_sync(&sci_work); - free_ec_sci(); - free_lid_events(); - free_lid_switch(); - free_ebook_switch(); - free_power_button(); - acpi_base = 0; - return 0; -} - -static struct platform_driver xo1_sci_driver = { - .driver = { - .name = "olpc-xo1-sci-acpi", - }, - .probe = xo1_sci_probe, - .remove = __devexit_p(xo1_sci_remove), - .suspend = xo1_sci_suspend, - .resume = xo1_sci_resume, -}; - -static int __init xo1_sci_init(void) -{ - return platform_driver_register(&xo1_sci_driver); -} -arch_initcall(xo1_sci_init); diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo15-sci.c b/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo15-sci.c deleted file mode 100644 index 23e5b9d7..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc-xo15-sci.c +++ /dev/null @@ -1,238 +0,0 @@ -/* - * Support for OLPC XO-1.5 System Control Interrupts (SCI) - * - * Copyright (C) 2009-2010 One Laptop per Child - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/device.h> -#include <linux/slab.h> -#include <linux/workqueue.h> -#include <linux/power_supply.h> - -#include <acpi/acpi_bus.h> -#include <acpi/acpi_drivers.h> -#include <asm/olpc.h> - -#define DRV_NAME "olpc-xo15-sci" -#define PFX DRV_NAME ": " -#define XO15_SCI_CLASS DRV_NAME -#define XO15_SCI_DEVICE_NAME "OLPC XO-1.5 SCI" - -static unsigned long xo15_sci_gpe; -static bool lid_wake_on_close; - -/* - * The normal ACPI LID wakeup behavior is wake-on-open, but not - * wake-on-close. This is implemented as standard by the XO-1.5 DSDT. - * - * We provide here a sysfs attribute that will additionally enable - * wake-on-close behavior. This is useful (e.g.) when we oportunistically - * suspend with the display running; if the lid is then closed, we want to - * wake up to turn the display off. - * - * This is controlled through a custom method in the XO-1.5 DSDT. - */ -static int set_lid_wake_behavior(bool wake_on_close) -{ - struct acpi_object_list arg_list; - union acpi_object arg; - acpi_status status; - - arg_list.count = 1; - arg_list.pointer = &arg; - arg.type = ACPI_TYPE_INTEGER; - arg.integer.value = wake_on_close; - - status = acpi_evaluate_object(NULL, "\\_SB.PCI0.LID.LIDW", &arg_list, NULL); - if (ACPI_FAILURE(status)) { - pr_warning(PFX "failed to set lid behavior\n"); - return 1; - } - - lid_wake_on_close = wake_on_close; - - return 0; -} - -static ssize_t -lid_wake_on_close_show(struct kobject *s, struct kobj_attribute *attr, char *buf) -{ - return sprintf(buf, "%u\n", lid_wake_on_close); -} - -static ssize_t lid_wake_on_close_store(struct kobject *s, - struct kobj_attribute *attr, - const char *buf, size_t n) -{ - unsigned int val; - - if (sscanf(buf, "%u", &val) != 1) - return -EINVAL; - - set_lid_wake_behavior(!!val); - - return n; -} - -static struct kobj_attribute lid_wake_on_close_attr = - __ATTR(lid_wake_on_close, 0644, - lid_wake_on_close_show, - lid_wake_on_close_store); - -static void battery_status_changed(void) -{ - struct power_supply *psy = power_supply_get_by_name("olpc-battery"); - - if (psy) { - power_supply_changed(psy); - put_device(psy->dev); - } -} - -static void ac_status_changed(void) -{ - struct power_supply *psy = power_supply_get_by_name("olpc-ac"); - - if (psy) { - power_supply_changed(psy); - put_device(psy->dev); - } -} - -static void process_sci_queue(void) -{ - u16 data; - int r; - - do { - r = olpc_ec_sci_query(&data); - if (r || !data) - break; - - pr_debug(PFX "SCI 0x%x received\n", data); - - switch (data) { - case EC_SCI_SRC_BATERR: - case EC_SCI_SRC_BATSOC: - case EC_SCI_SRC_BATTERY: - case EC_SCI_SRC_BATCRIT: - battery_status_changed(); - break; - case EC_SCI_SRC_ACPWR: - ac_status_changed(); - break; - } - } while (data); - - if (r) - pr_err(PFX "Failed to clear SCI queue"); -} - -static void process_sci_queue_work(struct work_struct *work) -{ - process_sci_queue(); -} - -static DECLARE_WORK(sci_work, process_sci_queue_work); - -static u32 xo15_sci_gpe_handler(acpi_handle gpe_device, u32 gpe, void *context) -{ - schedule_work(&sci_work); - return ACPI_INTERRUPT_HANDLED | ACPI_REENABLE_GPE; -} - -static int xo15_sci_add(struct acpi_device *device) -{ - unsigned long long tmp; - acpi_status status; - int r; - - if (!device) - return -EINVAL; - - strcpy(acpi_device_name(device), XO15_SCI_DEVICE_NAME); - strcpy(acpi_device_class(device), XO15_SCI_CLASS); - - /* Get GPE bit assignment (EC events). */ - status = acpi_evaluate_integer(device->handle, "_GPE", NULL, &tmp); - if (ACPI_FAILURE(status)) - return -EINVAL; - - xo15_sci_gpe = tmp; - status = acpi_install_gpe_handler(NULL, xo15_sci_gpe, - ACPI_GPE_EDGE_TRIGGERED, - xo15_sci_gpe_handler, device); - if (ACPI_FAILURE(status)) - return -ENODEV; - - dev_info(&device->dev, "Initialized, GPE = 0x%lx\n", xo15_sci_gpe); - - r = sysfs_create_file(&device->dev.kobj, &lid_wake_on_close_attr.attr); - if (r) - goto err_sysfs; - - /* Flush queue, and enable all SCI events */ - process_sci_queue(); - olpc_ec_mask_write(EC_SCI_SRC_ALL); - - acpi_enable_gpe(NULL, xo15_sci_gpe); - - /* Enable wake-on-EC */ - if (device->wakeup.flags.valid) - device_init_wakeup(&device->dev, true); - - return 0; - -err_sysfs: - acpi_remove_gpe_handler(NULL, xo15_sci_gpe, xo15_sci_gpe_handler); - cancel_work_sync(&sci_work); - return r; -} - -static int xo15_sci_remove(struct acpi_device *device, int type) -{ - acpi_disable_gpe(NULL, xo15_sci_gpe); - acpi_remove_gpe_handler(NULL, xo15_sci_gpe, xo15_sci_gpe_handler); - cancel_work_sync(&sci_work); - sysfs_remove_file(&device->dev.kobj, &lid_wake_on_close_attr.attr); - return 0; -} - -static int xo15_sci_resume(struct acpi_device *device) -{ - /* Enable all EC events */ - olpc_ec_mask_write(EC_SCI_SRC_ALL); - - /* Power/battery status might have changed */ - battery_status_changed(); - ac_status_changed(); - - return 0; -} - -static const struct acpi_device_id xo15_sci_device_ids[] = { - {"XO15EC", 0}, - {"", 0}, -}; - -static struct acpi_driver xo15_sci_drv = { - .name = DRV_NAME, - .class = XO15_SCI_CLASS, - .ids = xo15_sci_device_ids, - .ops = { - .add = xo15_sci_add, - .remove = xo15_sci_remove, - .resume = xo15_sci_resume, - }, -}; - -static int __init xo15_sci_init(void) -{ - return acpi_bus_register_driver(&xo15_sci_drv); -} -device_initcall(xo15_sci_init); diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc.c b/ANDROID_3.4.5/arch/x86/platform/olpc/olpc.c deleted file mode 100644 index a4bee53c..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc.c +++ /dev/null @@ -1,476 +0,0 @@ -/* - * Support for the OLPC DCON and OLPC EC access - * - * Copyright © 2006 Advanced Micro Devices, Inc. - * Copyright © 2007-2008 Andres Salomon <dilinger@debian.org> - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/spinlock.h> -#include <linux/io.h> -#include <linux/string.h> -#include <linux/platform_device.h> -#include <linux/of.h> -#include <linux/syscore_ops.h> -#include <linux/debugfs.h> -#include <linux/mutex.h> - -#include <asm/geode.h> -#include <asm/setup.h> -#include <asm/olpc.h> -#include <asm/olpc_ofw.h> - -struct olpc_platform_t olpc_platform_info; -EXPORT_SYMBOL_GPL(olpc_platform_info); - -static DEFINE_SPINLOCK(ec_lock); - -/* debugfs interface to EC commands */ -#define EC_MAX_CMD_ARGS (5 + 1) /* cmd byte + 5 args */ -#define EC_MAX_CMD_REPLY (8) - -static struct dentry *ec_debugfs_dir; -static DEFINE_MUTEX(ec_debugfs_cmd_lock); -static unsigned char ec_debugfs_resp[EC_MAX_CMD_REPLY]; -static unsigned int ec_debugfs_resp_bytes; - -/* EC event mask to be applied during suspend (defining wakeup sources). */ -static u16 ec_wakeup_mask; - -/* what the timeout *should* be (in ms) */ -#define EC_BASE_TIMEOUT 20 - -/* the timeout that bugs in the EC might force us to actually use */ -static int ec_timeout = EC_BASE_TIMEOUT; - -static int __init olpc_ec_timeout_set(char *str) -{ - if (get_option(&str, &ec_timeout) != 1) { - ec_timeout = EC_BASE_TIMEOUT; - printk(KERN_ERR "olpc-ec: invalid argument to " - "'olpc_ec_timeout=', ignoring!\n"); - } - printk(KERN_DEBUG "olpc-ec: using %d ms delay for EC commands.\n", - ec_timeout); - return 1; -} -__setup("olpc_ec_timeout=", olpc_ec_timeout_set); - -/* - * These {i,o}bf_status functions return whether the buffers are full or not. - */ - -static inline unsigned int ibf_status(unsigned int port) -{ - return !!(inb(port) & 0x02); -} - -static inline unsigned int obf_status(unsigned int port) -{ - return inb(port) & 0x01; -} - -#define wait_on_ibf(p, d) __wait_on_ibf(__LINE__, (p), (d)) -static int __wait_on_ibf(unsigned int line, unsigned int port, int desired) -{ - unsigned int timeo; - int state = ibf_status(port); - - for (timeo = ec_timeout; state != desired && timeo; timeo--) { - mdelay(1); - state = ibf_status(port); - } - - if ((state == desired) && (ec_timeout > EC_BASE_TIMEOUT) && - timeo < (ec_timeout - EC_BASE_TIMEOUT)) { - printk(KERN_WARNING "olpc-ec: %d: waited %u ms for IBF!\n", - line, ec_timeout - timeo); - } - - return !(state == desired); -} - -#define wait_on_obf(p, d) __wait_on_obf(__LINE__, (p), (d)) -static int __wait_on_obf(unsigned int line, unsigned int port, int desired) -{ - unsigned int timeo; - int state = obf_status(port); - - for (timeo = ec_timeout; state != desired && timeo; timeo--) { - mdelay(1); - state = obf_status(port); - } - - if ((state == desired) && (ec_timeout > EC_BASE_TIMEOUT) && - timeo < (ec_timeout - EC_BASE_TIMEOUT)) { - printk(KERN_WARNING "olpc-ec: %d: waited %u ms for OBF!\n", - line, ec_timeout - timeo); - } - - return !(state == desired); -} - -/* - * This allows the kernel to run Embedded Controller commands. The EC is - * documented at <http://wiki.laptop.org/go/Embedded_controller>, and the - * available EC commands are here: - * <http://wiki.laptop.org/go/Ec_specification>. Unfortunately, while - * OpenFirmware's source is available, the EC's is not. - */ -int olpc_ec_cmd(unsigned char cmd, unsigned char *inbuf, size_t inlen, - unsigned char *outbuf, size_t outlen) -{ - unsigned long flags; - int ret = -EIO; - int i; - int restarts = 0; - - spin_lock_irqsave(&ec_lock, flags); - - /* Clear OBF */ - for (i = 0; i < 10 && (obf_status(0x6c) == 1); i++) - inb(0x68); - if (i == 10) { - printk(KERN_ERR "olpc-ec: timeout while attempting to " - "clear OBF flag!\n"); - goto err; - } - - if (wait_on_ibf(0x6c, 0)) { - printk(KERN_ERR "olpc-ec: timeout waiting for EC to " - "quiesce!\n"); - goto err; - } - -restart: - /* - * Note that if we time out during any IBF checks, that's a failure; - * we have to return. There's no way for the kernel to clear that. - * - * If we time out during an OBF check, we can restart the command; - * reissuing it will clear the OBF flag, and we should be alright. - * The OBF flag will sometimes misbehave due to what we believe - * is a hardware quirk.. - */ - pr_devel("olpc-ec: running cmd 0x%x\n", cmd); - outb(cmd, 0x6c); - - if (wait_on_ibf(0x6c, 0)) { - printk(KERN_ERR "olpc-ec: timeout waiting for EC to read " - "command!\n"); - goto err; - } - - if (inbuf && inlen) { - /* write data to EC */ - for (i = 0; i < inlen; i++) { - pr_devel("olpc-ec: sending cmd arg 0x%x\n", inbuf[i]); - outb(inbuf[i], 0x68); - if (wait_on_ibf(0x6c, 0)) { - printk(KERN_ERR "olpc-ec: timeout waiting for" - " EC accept data!\n"); - goto err; - } - } - } - if (outbuf && outlen) { - /* read data from EC */ - for (i = 0; i < outlen; i++) { - if (wait_on_obf(0x6c, 1)) { - printk(KERN_ERR "olpc-ec: timeout waiting for" - " EC to provide data!\n"); - if (restarts++ < 10) - goto restart; - goto err; - } - outbuf[i] = inb(0x68); - pr_devel("olpc-ec: received 0x%x\n", outbuf[i]); - } - } - - ret = 0; -err: - spin_unlock_irqrestore(&ec_lock, flags); - return ret; -} -EXPORT_SYMBOL_GPL(olpc_ec_cmd); - -void olpc_ec_wakeup_set(u16 value) -{ - ec_wakeup_mask |= value; -} -EXPORT_SYMBOL_GPL(olpc_ec_wakeup_set); - -void olpc_ec_wakeup_clear(u16 value) -{ - ec_wakeup_mask &= ~value; -} -EXPORT_SYMBOL_GPL(olpc_ec_wakeup_clear); - -/* - * Returns true if the compile and runtime configurations allow for EC events - * to wake the system. - */ -bool olpc_ec_wakeup_available(void) -{ - if (!machine_is_olpc()) - return false; - - /* - * XO-1 EC wakeups are available when olpc-xo1-sci driver is - * compiled in - */ -#ifdef CONFIG_OLPC_XO1_SCI - if (olpc_platform_info.boardrev < olpc_board_pre(0xd0)) /* XO-1 */ - return true; -#endif - - /* - * XO-1.5 EC wakeups are available when olpc-xo15-sci driver is - * compiled in - */ -#ifdef CONFIG_OLPC_XO15_SCI - if (olpc_platform_info.boardrev >= olpc_board_pre(0xd0)) /* XO-1.5 */ - return true; -#endif - - return false; -} -EXPORT_SYMBOL_GPL(olpc_ec_wakeup_available); - -int olpc_ec_mask_write(u16 bits) -{ - if (olpc_platform_info.flags & OLPC_F_EC_WIDE_SCI) { - __be16 ec_word = cpu_to_be16(bits); - return olpc_ec_cmd(EC_WRITE_EXT_SCI_MASK, (void *) &ec_word, 2, - NULL, 0); - } else { - unsigned char ec_byte = bits & 0xff; - return olpc_ec_cmd(EC_WRITE_SCI_MASK, &ec_byte, 1, NULL, 0); - } -} -EXPORT_SYMBOL_GPL(olpc_ec_mask_write); - -int olpc_ec_sci_query(u16 *sci_value) -{ - int ret; - - if (olpc_platform_info.flags & OLPC_F_EC_WIDE_SCI) { - __be16 ec_word; - ret = olpc_ec_cmd(EC_EXT_SCI_QUERY, - NULL, 0, (void *) &ec_word, 2); - if (ret == 0) - *sci_value = be16_to_cpu(ec_word); - } else { - unsigned char ec_byte; - ret = olpc_ec_cmd(EC_SCI_QUERY, NULL, 0, &ec_byte, 1); - if (ret == 0) - *sci_value = ec_byte; - } - - return ret; -} -EXPORT_SYMBOL_GPL(olpc_ec_sci_query); - -static ssize_t ec_debugfs_cmd_write(struct file *file, const char __user *buf, - size_t size, loff_t *ppos) -{ - int i, m; - unsigned char ec_cmd[EC_MAX_CMD_ARGS]; - unsigned int ec_cmd_int[EC_MAX_CMD_ARGS]; - char cmdbuf[64]; - int ec_cmd_bytes; - - mutex_lock(&ec_debugfs_cmd_lock); - - size = simple_write_to_buffer(cmdbuf, sizeof(cmdbuf), ppos, buf, size); - - m = sscanf(cmdbuf, "%x:%u %x %x %x %x %x", &ec_cmd_int[0], - &ec_debugfs_resp_bytes, - &ec_cmd_int[1], &ec_cmd_int[2], &ec_cmd_int[3], - &ec_cmd_int[4], &ec_cmd_int[5]); - if (m < 2 || ec_debugfs_resp_bytes > EC_MAX_CMD_REPLY) { - /* reset to prevent overflow on read */ - ec_debugfs_resp_bytes = 0; - - printk(KERN_DEBUG "olpc-ec: bad ec cmd: " - "cmd:response-count [arg1 [arg2 ...]]\n"); - size = -EINVAL; - goto out; - } - - /* convert scanf'd ints to char */ - ec_cmd_bytes = m - 2; - for (i = 0; i <= ec_cmd_bytes; i++) - ec_cmd[i] = ec_cmd_int[i]; - - printk(KERN_DEBUG "olpc-ec: debugfs cmd 0x%02x with %d args " - "%02x %02x %02x %02x %02x, want %d returns\n", - ec_cmd[0], ec_cmd_bytes, ec_cmd[1], ec_cmd[2], ec_cmd[3], - ec_cmd[4], ec_cmd[5], ec_debugfs_resp_bytes); - - olpc_ec_cmd(ec_cmd[0], (ec_cmd_bytes == 0) ? NULL : &ec_cmd[1], - ec_cmd_bytes, ec_debugfs_resp, ec_debugfs_resp_bytes); - - printk(KERN_DEBUG "olpc-ec: response " - "%02x %02x %02x %02x %02x %02x %02x %02x (%d bytes expected)\n", - ec_debugfs_resp[0], ec_debugfs_resp[1], ec_debugfs_resp[2], - ec_debugfs_resp[3], ec_debugfs_resp[4], ec_debugfs_resp[5], - ec_debugfs_resp[6], ec_debugfs_resp[7], ec_debugfs_resp_bytes); - -out: - mutex_unlock(&ec_debugfs_cmd_lock); - return size; -} - -static ssize_t ec_debugfs_cmd_read(struct file *file, char __user *buf, - size_t size, loff_t *ppos) -{ - unsigned int i, r; - char *rp; - char respbuf[64]; - - mutex_lock(&ec_debugfs_cmd_lock); - rp = respbuf; - rp += sprintf(rp, "%02x", ec_debugfs_resp[0]); - for (i = 1; i < ec_debugfs_resp_bytes; i++) - rp += sprintf(rp, ", %02x", ec_debugfs_resp[i]); - mutex_unlock(&ec_debugfs_cmd_lock); - rp += sprintf(rp, "\n"); - - r = rp - respbuf; - return simple_read_from_buffer(buf, size, ppos, respbuf, r); -} - -static const struct file_operations ec_debugfs_genops = { - .write = ec_debugfs_cmd_write, - .read = ec_debugfs_cmd_read, -}; - -static void setup_debugfs(void) -{ - ec_debugfs_dir = debugfs_create_dir("olpc-ec", 0); - if (ec_debugfs_dir == ERR_PTR(-ENODEV)) - return; - - debugfs_create_file("cmd", 0600, ec_debugfs_dir, NULL, - &ec_debugfs_genops); -} - -static int olpc_ec_suspend(void) -{ - return olpc_ec_mask_write(ec_wakeup_mask); -} - -static bool __init check_ofw_architecture(struct device_node *root) -{ - const char *olpc_arch; - int propsize; - - olpc_arch = of_get_property(root, "architecture", &propsize); - return propsize == 5 && strncmp("OLPC", olpc_arch, 5) == 0; -} - -static u32 __init get_board_revision(struct device_node *root) -{ - int propsize; - const __be32 *rev; - - rev = of_get_property(root, "board-revision-int", &propsize); - if (propsize != 4) - return 0; - - return be32_to_cpu(*rev); -} - -static bool __init platform_detect(void) -{ - struct device_node *root = of_find_node_by_path("/"); - bool success; - - if (!root) - return false; - - success = check_ofw_architecture(root); - if (success) { - olpc_platform_info.boardrev = get_board_revision(root); - olpc_platform_info.flags |= OLPC_F_PRESENT; - } - - of_node_put(root); - return success; -} - -static int __init add_xo1_platform_devices(void) -{ - struct platform_device *pdev; - - pdev = platform_device_register_simple("xo1-rfkill", -1, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - - pdev = platform_device_register_simple("olpc-xo1", -1, NULL, 0); - if (IS_ERR(pdev)) - return PTR_ERR(pdev); - - return 0; -} - -static struct syscore_ops olpc_syscore_ops = { - .suspend = olpc_ec_suspend, -}; - -static int __init olpc_init(void) -{ - int r = 0; - - if (!olpc_ofw_present() || !platform_detect()) - return 0; - - spin_lock_init(&ec_lock); - - /* assume B1 and above models always have a DCON */ - if (olpc_board_at_least(olpc_board(0xb1))) - olpc_platform_info.flags |= OLPC_F_DCON; - - /* get the EC revision */ - olpc_ec_cmd(EC_FIRMWARE_REV, NULL, 0, - (unsigned char *) &olpc_platform_info.ecver, 1); - -#ifdef CONFIG_PCI_OLPC - /* If the VSA exists let it emulate PCI, if not emulate in kernel. - * XO-1 only. */ - if (olpc_platform_info.boardrev < olpc_board_pre(0xd0) && - !cs5535_has_vsa2()) - x86_init.pci.arch_init = pci_olpc_init; -#endif - /* EC version 0x5f adds support for wide SCI mask */ - if (olpc_platform_info.ecver >= 0x5f) - olpc_platform_info.flags |= OLPC_F_EC_WIDE_SCI; - - printk(KERN_INFO "OLPC board revision %s%X (EC=%x)\n", - ((olpc_platform_info.boardrev & 0xf) < 8) ? "pre" : "", - olpc_platform_info.boardrev >> 4, - olpc_platform_info.ecver); - - if (olpc_platform_info.boardrev < olpc_board_pre(0xd0)) { /* XO-1 */ - r = add_xo1_platform_devices(); - if (r) - return r; - } - - register_syscore_ops(&olpc_syscore_ops); - setup_debugfs(); - - return 0; -} - -postcore_initcall(olpc_init); diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc_dt.c b/ANDROID_3.4.5/arch/x86/platform/olpc/olpc_dt.c deleted file mode 100644 index d6ee9298..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc_dt.c +++ /dev/null @@ -1,304 +0,0 @@ -/* - * OLPC-specific OFW device tree support code. - * - * Paul Mackerras August 1996. - * Copyright (C) 1996-2005 Paul Mackerras. - * - * Adapted for 64bit PowerPC by Dave Engebretsen and Peter Bergner. - * {engebret|bergner}@us.ibm.com - * - * Adapted for sparc by David S. Miller davem@davemloft.net - * Adapted for x86/OLPC by Andres Salomon <dilinger@queued.net> - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License - * as published by the Free Software Foundation; either version - * 2 of the License, or (at your option) any later version. - */ - -#include <linux/kernel.h> -#include <linux/bootmem.h> -#include <linux/of.h> -#include <linux/of_platform.h> -#include <linux/of_pdt.h> -#include <asm/olpc.h> -#include <asm/olpc_ofw.h> - -static phandle __init olpc_dt_getsibling(phandle node) -{ - const void *args[] = { (void *)node }; - void *res[] = { &node }; - - if ((s32)node == -1) - return 0; - - if (olpc_ofw("peer", args, res) || (s32)node == -1) - return 0; - - return node; -} - -static phandle __init olpc_dt_getchild(phandle node) -{ - const void *args[] = { (void *)node }; - void *res[] = { &node }; - - if ((s32)node == -1) - return 0; - - if (olpc_ofw("child", args, res) || (s32)node == -1) { - pr_err("PROM: %s: fetching child failed!\n", __func__); - return 0; - } - - return node; -} - -static int __init olpc_dt_getproplen(phandle node, const char *prop) -{ - const void *args[] = { (void *)node, prop }; - int len; - void *res[] = { &len }; - - if ((s32)node == -1) - return -1; - - if (olpc_ofw("getproplen", args, res)) { - pr_err("PROM: %s: getproplen failed!\n", __func__); - return -1; - } - - return len; -} - -static int __init olpc_dt_getproperty(phandle node, const char *prop, - char *buf, int bufsize) -{ - int plen; - - plen = olpc_dt_getproplen(node, prop); - if (plen > bufsize || plen < 1) { - return -1; - } else { - const void *args[] = { (void *)node, prop, buf, (void *)plen }; - void *res[] = { &plen }; - - if (olpc_ofw("getprop", args, res)) { - pr_err("PROM: %s: getprop failed!\n", __func__); - return -1; - } - } - - return plen; -} - -static int __init olpc_dt_nextprop(phandle node, char *prev, char *buf) -{ - const void *args[] = { (void *)node, prev, buf }; - int success; - void *res[] = { &success }; - - buf[0] = '\0'; - - if ((s32)node == -1) - return -1; - - if (olpc_ofw("nextprop", args, res) || success != 1) - return -1; - - return 0; -} - -static int __init olpc_dt_pkg2path(phandle node, char *buf, - const int buflen, int *len) -{ - const void *args[] = { (void *)node, buf, (void *)buflen }; - void *res[] = { len }; - - if ((s32)node == -1) - return -1; - - if (olpc_ofw("package-to-path", args, res) || *len < 1) - return -1; - - return 0; -} - -static unsigned int prom_early_allocated __initdata; - -void * __init prom_early_alloc(unsigned long size) -{ - static u8 *mem; - static size_t free_mem; - void *res; - - if (free_mem < size) { - const size_t chunk_size = max(PAGE_SIZE, size); - - /* - * To mimimize the number of allocations, grab at least - * PAGE_SIZE of memory (that's an arbitrary choice that's - * fast enough on the platforms we care about while minimizing - * wasted bootmem) and hand off chunks of it to callers. - */ - res = alloc_bootmem(chunk_size); - BUG_ON(!res); - prom_early_allocated += chunk_size; - memset(res, 0, chunk_size); - free_mem = chunk_size; - mem = res; - } - - /* allocate from the local cache */ - free_mem -= size; - res = mem; - mem += size; - return res; -} - -static struct of_pdt_ops prom_olpc_ops __initdata = { - .nextprop = olpc_dt_nextprop, - .getproplen = olpc_dt_getproplen, - .getproperty = olpc_dt_getproperty, - .getchild = olpc_dt_getchild, - .getsibling = olpc_dt_getsibling, - .pkg2path = olpc_dt_pkg2path, -}; - -static phandle __init olpc_dt_finddevice(const char *path) -{ - phandle node; - const void *args[] = { path }; - void *res[] = { &node }; - - if (olpc_ofw("finddevice", args, res)) { - pr_err("olpc_dt: finddevice failed!\n"); - return 0; - } - - if ((s32) node == -1) - return 0; - - return node; -} - -static int __init olpc_dt_interpret(const char *words) -{ - int result; - const void *args[] = { words }; - void *res[] = { &result }; - - if (olpc_ofw("interpret", args, res)) { - pr_err("olpc_dt: interpret failed!\n"); - return -1; - } - - return result; -} - -/* - * Extract board revision directly from OFW device tree. - * We can't use olpc_platform_info because that hasn't been set up yet. - */ -static u32 __init olpc_dt_get_board_revision(void) -{ - phandle node; - __be32 rev; - int r; - - node = olpc_dt_finddevice("/"); - if (!node) - return 0; - - r = olpc_dt_getproperty(node, "board-revision-int", - (char *) &rev, sizeof(rev)); - if (r < 0) - return 0; - - return be32_to_cpu(rev); -} - -void __init olpc_dt_fixup(void) -{ - int r; - char buf[64]; - phandle node; - u32 board_rev; - - node = olpc_dt_finddevice("/battery@0"); - if (!node) - return; - - /* - * If the battery node has a compatible property, we are running a new - * enough firmware and don't have fixups to make. - */ - r = olpc_dt_getproperty(node, "compatible", buf, sizeof(buf)); - if (r > 0) - return; - - pr_info("PROM DT: Old firmware detected, applying fixes\n"); - - /* Add olpc,xo1-battery compatible marker to battery node */ - olpc_dt_interpret("\" /battery@0\" find-device" - " \" olpc,xo1-battery\" +compatible" - " device-end"); - - board_rev = olpc_dt_get_board_revision(); - if (!board_rev) - return; - - if (board_rev >= olpc_board_pre(0xd0)) { - /* XO-1.5: add dcon device */ - olpc_dt_interpret("\" /pci/display@1\" find-device" - " new-device" - " \" dcon\" device-name \" olpc,xo1-dcon\" +compatible" - " finish-device device-end"); - } else { - /* XO-1: add dcon device, mark RTC as olpc,xo1-rtc */ - olpc_dt_interpret("\" /pci/display@1,1\" find-device" - " new-device" - " \" dcon\" device-name \" olpc,xo1-dcon\" +compatible" - " finish-device device-end" - " \" /rtc\" find-device" - " \" olpc,xo1-rtc\" +compatible" - " device-end"); - } -} - -void __init olpc_dt_build_devicetree(void) -{ - phandle root; - - if (!olpc_ofw_is_installed()) - return; - - olpc_dt_fixup(); - - root = olpc_dt_getsibling(0); - if (!root) { - pr_err("PROM: unable to get root node from OFW!\n"); - return; - } - of_pdt_build_devicetree(root, &prom_olpc_ops); - - pr_info("PROM DT: Built device tree with %u bytes of memory.\n", - prom_early_allocated); -} - -/* A list of DT node/bus matches that we want to expose as platform devices */ -static struct of_device_id __initdata of_ids[] = { - { .compatible = "olpc,xo1-battery" }, - { .compatible = "olpc,xo1-dcon" }, - { .compatible = "olpc,xo1-rtc" }, - {}, -}; - -static int __init olpc_create_platform_devices(void) -{ - if (machine_is_olpc()) - return of_platform_bus_probe(NULL, of_ids, NULL); - else - return 0; -} -device_initcall(olpc_create_platform_devices); diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc_ofw.c b/ANDROID_3.4.5/arch/x86/platform/olpc/olpc_ofw.c deleted file mode 100644 index e7604f62..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/olpc_ofw.c +++ /dev/null @@ -1,117 +0,0 @@ -#include <linux/kernel.h> -#include <linux/module.h> -#include <linux/init.h> -#include <asm/page.h> -#include <asm/setup.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/olpc_ofw.h> - -/* address of OFW callback interface; will be NULL if OFW isn't found */ -static int (*olpc_ofw_cif)(int *); - -/* page dir entry containing OFW's pgdir table; filled in by head_32.S */ -u32 olpc_ofw_pgd __initdata; - -static DEFINE_SPINLOCK(ofw_lock); - -#define MAXARGS 10 - -void __init setup_olpc_ofw_pgd(void) -{ - pgd_t *base, *ofw_pde; - - if (!olpc_ofw_cif) - return; - - /* fetch OFW's PDE */ - base = early_ioremap(olpc_ofw_pgd, sizeof(olpc_ofw_pgd) * PTRS_PER_PGD); - if (!base) { - printk(KERN_ERR "failed to remap OFW's pgd - disabling OFW!\n"); - olpc_ofw_cif = NULL; - return; - } - ofw_pde = &base[OLPC_OFW_PDE_NR]; - - /* install OFW's PDE permanently into the kernel's pgtable */ - set_pgd(&swapper_pg_dir[OLPC_OFW_PDE_NR], *ofw_pde); - /* implicit optimization barrier here due to uninline function return */ - - early_iounmap(base, sizeof(olpc_ofw_pgd) * PTRS_PER_PGD); -} - -int __olpc_ofw(const char *name, int nr_args, const void **args, int nr_res, - void **res) -{ - int ofw_args[MAXARGS + 3]; - unsigned long flags; - int ret, i, *p; - - BUG_ON(nr_args + nr_res > MAXARGS); - - if (!olpc_ofw_cif) - return -EIO; - - ofw_args[0] = (int)name; - ofw_args[1] = nr_args; - ofw_args[2] = nr_res; - - p = &ofw_args[3]; - for (i = 0; i < nr_args; i++, p++) - *p = (int)args[i]; - - /* call into ofw */ - spin_lock_irqsave(&ofw_lock, flags); - ret = olpc_ofw_cif(ofw_args); - spin_unlock_irqrestore(&ofw_lock, flags); - - if (!ret) { - for (i = 0; i < nr_res; i++, p++) - *((int *)res[i]) = *p; - } - - return ret; -} -EXPORT_SYMBOL_GPL(__olpc_ofw); - -bool olpc_ofw_present(void) -{ - return olpc_ofw_cif != NULL; -} -EXPORT_SYMBOL_GPL(olpc_ofw_present); - -/* OFW cif _should_ be above this address */ -#define OFW_MIN 0xff000000 - -/* OFW starts on a 1MB boundary */ -#define OFW_BOUND (1<<20) - -void __init olpc_ofw_detect(void) -{ - struct olpc_ofw_header *hdr = &boot_params.olpc_ofw_header; - unsigned long start; - - /* ensure OFW booted us by checking for "OFW " string */ - if (hdr->ofw_magic != OLPC_OFW_SIG) - return; - - olpc_ofw_cif = (int (*)(int *))hdr->cif_handler; - - if ((unsigned long)olpc_ofw_cif < OFW_MIN) { - printk(KERN_ERR "OFW detected, but cif has invalid address 0x%lx - disabling.\n", - (unsigned long)olpc_ofw_cif); - olpc_ofw_cif = NULL; - return; - } - - /* determine where OFW starts in memory */ - start = round_down((unsigned long)olpc_ofw_cif, OFW_BOUND); - printk(KERN_INFO "OFW detected in memory, cif @ 0x%lx (reserving top %ldMB)\n", - (unsigned long)olpc_ofw_cif, (-start) >> 20); - reserve_top_address(-start); -} - -bool __init olpc_ofw_is_installed(void) -{ - return olpc_ofw_cif != NULL; -} diff --git a/ANDROID_3.4.5/arch/x86/platform/olpc/xo1-wakeup.S b/ANDROID_3.4.5/arch/x86/platform/olpc/xo1-wakeup.S deleted file mode 100644 index 948deb28..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/olpc/xo1-wakeup.S +++ /dev/null @@ -1,124 +0,0 @@ -.text -#include <linux/linkage.h> -#include <asm/segment.h> -#include <asm/page.h> -#include <asm/pgtable_32.h> - - .macro writepost,value - movb $0x34, %al - outb %al, $0x70 - movb $\value, %al - outb %al, $0x71 - .endm - -wakeup_start: - # OFW lands us here, running in protected mode, with a - # kernel-compatible GDT already setup. - - # Clear any dangerous flags - pushl $0 - popfl - - writepost 0x31 - - # Set up %cr3 - movl $initial_page_table - __PAGE_OFFSET, %eax - movl %eax, %cr3 - - movl saved_cr4, %eax - movl %eax, %cr4 - - movl saved_cr0, %eax - movl %eax, %cr0 - - # Control registers were modified, pipeline resync is needed - jmp 1f -1: - - movw $__KERNEL_DS, %ax - movw %ax, %ss - movw %ax, %ds - movw %ax, %es - movw %ax, %fs - movw %ax, %gs - - lgdt saved_gdt - lidt saved_idt - lldt saved_ldt - ljmp $(__KERNEL_CS),$1f -1: - movl %cr3, %eax - movl %eax, %cr3 - wbinvd - - # Go back to the return point - jmp ret_point - -save_registers: - sgdt saved_gdt - sidt saved_idt - sldt saved_ldt - - pushl %edx - movl %cr4, %edx - movl %edx, saved_cr4 - - movl %cr0, %edx - movl %edx, saved_cr0 - - popl %edx - - movl %ebx, saved_context_ebx - movl %ebp, saved_context_ebp - movl %esi, saved_context_esi - movl %edi, saved_context_edi - - pushfl - popl saved_context_eflags - - ret - -restore_registers: - movl saved_context_ebp, %ebp - movl saved_context_ebx, %ebx - movl saved_context_esi, %esi - movl saved_context_edi, %edi - - pushl saved_context_eflags - popfl - - ret - -ENTRY(do_olpc_suspend_lowlevel) - call save_processor_state - call save_registers - - # This is the stack context we want to remember - movl %esp, saved_context_esp - - pushl $3 - call xo1_do_sleep - - jmp wakeup_start - .p2align 4,,7 -ret_point: - movl saved_context_esp, %esp - - writepost 0x32 - - call restore_registers - call restore_processor_state - ret - -.data -saved_gdt: .long 0,0 -saved_idt: .long 0,0 -saved_ldt: .long 0 -saved_cr4: .long 0 -saved_cr0: .long 0 -saved_context_esp: .long 0 -saved_context_edi: .long 0 -saved_context_esi: .long 0 -saved_context_ebx: .long 0 -saved_context_ebp: .long 0 -saved_context_eflags: .long 0 diff --git a/ANDROID_3.4.5/arch/x86/platform/scx200/Makefile b/ANDROID_3.4.5/arch/x86/platform/scx200/Makefile deleted file mode 100644 index 762b4c7f..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/scx200/Makefile +++ /dev/null @@ -1,2 +0,0 @@ -obj-$(CONFIG_SCx200) += scx200.o -scx200-y += scx200_32.o diff --git a/ANDROID_3.4.5/arch/x86/platform/scx200/scx200_32.c b/ANDROID_3.4.5/arch/x86/platform/scx200/scx200_32.c deleted file mode 100644 index 7a9ad30d..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/scx200/scx200_32.c +++ /dev/null @@ -1,129 +0,0 @@ -/* - * Copyright (c) 2001,2002 Christer Weinigel <wingel@nano-system.com> - * - * National Semiconductor SCx200 support. - */ - -#include <linux/module.h> -#include <linux/errno.h> -#include <linux/kernel.h> -#include <linux/init.h> -#include <linux/mutex.h> -#include <linux/pci.h> - -#include <linux/scx200.h> -#include <linux/scx200_gpio.h> - -/* Verify that the configuration block really is there */ -#define scx200_cb_probe(base) (inw((base) + SCx200_CBA) == (base)) - -MODULE_AUTHOR("Christer Weinigel <wingel@nano-system.com>"); -MODULE_DESCRIPTION("NatSemi SCx200 Driver"); -MODULE_LICENSE("GPL"); - -unsigned scx200_gpio_base = 0; -unsigned long scx200_gpio_shadow[2]; - -unsigned scx200_cb_base = 0; - -static struct pci_device_id scx200_tbl[] = { - { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_SCx200_BRIDGE) }, - { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_SC1100_BRIDGE) }, - { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_SCx200_XBUS) }, - { PCI_VDEVICE(NS, PCI_DEVICE_ID_NS_SC1100_XBUS) }, - { }, -}; -MODULE_DEVICE_TABLE(pci,scx200_tbl); - -static int __devinit scx200_probe(struct pci_dev *, const struct pci_device_id *); - -static struct pci_driver scx200_pci_driver = { - .name = "scx200", - .id_table = scx200_tbl, - .probe = scx200_probe, -}; - -static DEFINE_MUTEX(scx200_gpio_config_lock); - -static void __devinit scx200_init_shadow(void) -{ - int bank; - - /* read the current values driven on the GPIO signals */ - for (bank = 0; bank < 2; ++bank) - scx200_gpio_shadow[bank] = inl(scx200_gpio_base + 0x10 * bank); -} - -static int __devinit scx200_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -{ - unsigned base; - - if (pdev->device == PCI_DEVICE_ID_NS_SCx200_BRIDGE || - pdev->device == PCI_DEVICE_ID_NS_SC1100_BRIDGE) { - base = pci_resource_start(pdev, 0); - pr_info("GPIO base 0x%x\n", base); - - if (!request_region(base, SCx200_GPIO_SIZE, - "NatSemi SCx200 GPIO")) { - pr_err("can't allocate I/O for GPIOs\n"); - return -EBUSY; - } - - scx200_gpio_base = base; - scx200_init_shadow(); - - } else { - /* find the base of the Configuration Block */ - if (scx200_cb_probe(SCx200_CB_BASE_FIXED)) { - scx200_cb_base = SCx200_CB_BASE_FIXED; - } else { - pci_read_config_dword(pdev, SCx200_CBA_SCRATCH, &base); - if (scx200_cb_probe(base)) { - scx200_cb_base = base; - } else { - pr_warn("Configuration Block not found\n"); - return -ENODEV; - } - } - pr_info("Configuration Block base 0x%x\n", scx200_cb_base); - } - - return 0; -} - -u32 scx200_gpio_configure(unsigned index, u32 mask, u32 bits) -{ - u32 config, new_config; - - mutex_lock(&scx200_gpio_config_lock); - - outl(index, scx200_gpio_base + 0x20); - config = inl(scx200_gpio_base + 0x24); - - new_config = (config & mask) | bits; - outl(new_config, scx200_gpio_base + 0x24); - - mutex_unlock(&scx200_gpio_config_lock); - - return config; -} - -static int __init scx200_init(void) -{ - pr_info("NatSemi SCx200 Driver\n"); - return pci_register_driver(&scx200_pci_driver); -} - -static void __exit scx200_cleanup(void) -{ - pci_unregister_driver(&scx200_pci_driver); - release_region(scx200_gpio_base, SCx200_GPIO_SIZE); -} - -module_init(scx200_init); -module_exit(scx200_cleanup); - -EXPORT_SYMBOL(scx200_gpio_base); -EXPORT_SYMBOL(scx200_gpio_shadow); -EXPORT_SYMBOL(scx200_gpio_configure); -EXPORT_SYMBOL(scx200_cb_base); diff --git a/ANDROID_3.4.5/arch/x86/platform/sfi/Makefile b/ANDROID_3.4.5/arch/x86/platform/sfi/Makefile deleted file mode 100644 index cc5db116..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/sfi/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_SFI) += sfi.o diff --git a/ANDROID_3.4.5/arch/x86/platform/sfi/sfi.c b/ANDROID_3.4.5/arch/x86/platform/sfi/sfi.c deleted file mode 100644 index 7785b72e..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/sfi/sfi.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * sfi.c - x86 architecture SFI support. - * - * Copyright (c) 2009, Intel Corporation. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. - * - */ - -#define KMSG_COMPONENT "SFI" -#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt - -#include <linux/acpi.h> -#include <linux/init.h> -#include <linux/sfi.h> -#include <linux/io.h> - -#include <asm/io_apic.h> -#include <asm/mpspec.h> -#include <asm/setup.h> -#include <asm/apic.h> - -#ifdef CONFIG_X86_LOCAL_APIC -static unsigned long sfi_lapic_addr __initdata = APIC_DEFAULT_PHYS_BASE; - -/* All CPUs enumerated by SFI must be present and enabled */ -static void __cpuinit mp_sfi_register_lapic(u8 id) -{ - if (MAX_LOCAL_APIC - id <= 0) { - pr_warning("Processor #%d invalid (max %d)\n", - id, MAX_LOCAL_APIC); - return; - } - - pr_info("registering lapic[%d]\n", id); - - generic_processor_info(id, GET_APIC_VERSION(apic_read(APIC_LVR))); -} - -static int __init sfi_parse_cpus(struct sfi_table_header *table) -{ - struct sfi_table_simple *sb; - struct sfi_cpu_table_entry *pentry; - int i; - int cpu_num; - - sb = (struct sfi_table_simple *)table; - cpu_num = SFI_GET_NUM_ENTRIES(sb, struct sfi_cpu_table_entry); - pentry = (struct sfi_cpu_table_entry *)sb->pentry; - - for (i = 0; i < cpu_num; i++) { - mp_sfi_register_lapic(pentry->apic_id); - pentry++; - } - - smp_found_config = 1; - return 0; -} -#endif /* CONFIG_X86_LOCAL_APIC */ - -#ifdef CONFIG_X86_IO_APIC - -static int __init sfi_parse_ioapic(struct sfi_table_header *table) -{ - struct sfi_table_simple *sb; - struct sfi_apic_table_entry *pentry; - int i, num; - - sb = (struct sfi_table_simple *)table; - num = SFI_GET_NUM_ENTRIES(sb, struct sfi_apic_table_entry); - pentry = (struct sfi_apic_table_entry *)sb->pentry; - - for (i = 0; i < num; i++) { - mp_register_ioapic(i, pentry->phys_addr, gsi_top); - pentry++; - } - - WARN(pic_mode, KERN_WARNING - "SFI: pic_mod shouldn't be 1 when IOAPIC table is present\n"); - pic_mode = 0; - return 0; -} -#endif /* CONFIG_X86_IO_APIC */ - -/* - * sfi_platform_init(): register lapics & io-apics - */ -int __init sfi_platform_init(void) -{ -#ifdef CONFIG_X86_LOCAL_APIC - register_lapic_address(sfi_lapic_addr); - sfi_table_parse(SFI_SIG_CPUS, NULL, NULL, sfi_parse_cpus); -#endif -#ifdef CONFIG_X86_IO_APIC - sfi_table_parse(SFI_SIG_APIC, NULL, NULL, sfi_parse_ioapic); -#endif - return 0; -} diff --git a/ANDROID_3.4.5/arch/x86/platform/uv/Makefile b/ANDROID_3.4.5/arch/x86/platform/uv/Makefile deleted file mode 100644 index 6c40995f..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/uv/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_X86_UV) += tlb_uv.o bios_uv.o uv_irq.o uv_sysfs.o uv_time.o diff --git a/ANDROID_3.4.5/arch/x86/platform/uv/bios_uv.c b/ANDROID_3.4.5/arch/x86/platform/uv/bios_uv.c deleted file mode 100644 index 76661213..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/uv/bios_uv.c +++ /dev/null @@ -1,216 +0,0 @@ -/* - * BIOS run time interface routines. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Copyright (c) 2008-2009 Silicon Graphics, Inc. All Rights Reserved. - * Copyright (c) Russ Anderson <rja@sgi.com> - */ - -#include <linux/efi.h> -#include <linux/export.h> -#include <asm/efi.h> -#include <linux/io.h> -#include <asm/uv/bios.h> -#include <asm/uv/uv_hub.h> - -static struct uv_systab uv_systab; - -s64 uv_bios_call(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, u64 a4, u64 a5) -{ - struct uv_systab *tab = &uv_systab; - s64 ret; - - if (!tab->function) - /* - * BIOS does not support UV systab - */ - return BIOS_STATUS_UNIMPLEMENTED; - - ret = efi_call6((void *)__va(tab->function), (u64)which, - a1, a2, a3, a4, a5); - return ret; -} -EXPORT_SYMBOL_GPL(uv_bios_call); - -s64 uv_bios_call_irqsave(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, - u64 a4, u64 a5) -{ - unsigned long bios_flags; - s64 ret; - - local_irq_save(bios_flags); - ret = uv_bios_call(which, a1, a2, a3, a4, a5); - local_irq_restore(bios_flags); - - return ret; -} - -s64 uv_bios_call_reentrant(enum uv_bios_cmd which, u64 a1, u64 a2, u64 a3, - u64 a4, u64 a5) -{ - s64 ret; - - preempt_disable(); - ret = uv_bios_call(which, a1, a2, a3, a4, a5); - preempt_enable(); - - return ret; -} - - -long sn_partition_id; -EXPORT_SYMBOL_GPL(sn_partition_id); -long sn_coherency_id; -EXPORT_SYMBOL_GPL(sn_coherency_id); -long sn_region_size; -EXPORT_SYMBOL_GPL(sn_region_size); -long system_serial_number; -EXPORT_SYMBOL_GPL(system_serial_number); -int uv_type; -EXPORT_SYMBOL_GPL(uv_type); - - -s64 uv_bios_get_sn_info(int fc, int *uvtype, long *partid, long *coher, - long *region, long *ssn) -{ - s64 ret; - u64 v0, v1; - union partition_info_u part; - - ret = uv_bios_call_irqsave(UV_BIOS_GET_SN_INFO, fc, - (u64)(&v0), (u64)(&v1), 0, 0); - if (ret != BIOS_STATUS_SUCCESS) - return ret; - - part.val = v0; - if (uvtype) - *uvtype = part.hub_version; - if (partid) - *partid = part.partition_id; - if (coher) - *coher = part.coherence_id; - if (region) - *region = part.region_size; - if (ssn) - *ssn = v1; - return ret; -} -EXPORT_SYMBOL_GPL(uv_bios_get_sn_info); - -int -uv_bios_mq_watchlist_alloc(unsigned long addr, unsigned int mq_size, - unsigned long *intr_mmr_offset) -{ - u64 watchlist; - s64 ret; - - /* - * bios returns watchlist number or negative error number. - */ - ret = (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_ALLOC, addr, - mq_size, (u64)intr_mmr_offset, - (u64)&watchlist, 0); - if (ret < BIOS_STATUS_SUCCESS) - return ret; - - return watchlist; -} -EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_alloc); - -int -uv_bios_mq_watchlist_free(int blade, int watchlist_num) -{ - return (int)uv_bios_call_irqsave(UV_BIOS_WATCHLIST_FREE, - blade, watchlist_num, 0, 0, 0); -} -EXPORT_SYMBOL_GPL(uv_bios_mq_watchlist_free); - -s64 -uv_bios_change_memprotect(u64 paddr, u64 len, enum uv_memprotect perms) -{ - return uv_bios_call_irqsave(UV_BIOS_MEMPROTECT, paddr, len, - perms, 0, 0); -} -EXPORT_SYMBOL_GPL(uv_bios_change_memprotect); - -s64 -uv_bios_reserved_page_pa(u64 buf, u64 *cookie, u64 *addr, u64 *len) -{ - s64 ret; - - ret = uv_bios_call_irqsave(UV_BIOS_GET_PARTITION_ADDR, (u64)cookie, - (u64)addr, buf, (u64)len, 0); - return ret; -} -EXPORT_SYMBOL_GPL(uv_bios_reserved_page_pa); - -s64 uv_bios_freq_base(u64 clock_type, u64 *ticks_per_second) -{ - return uv_bios_call(UV_BIOS_FREQ_BASE, clock_type, - (u64)ticks_per_second, 0, 0, 0); -} -EXPORT_SYMBOL_GPL(uv_bios_freq_base); - -/* - * uv_bios_set_legacy_vga_target - Set Legacy VGA I/O Target - * @decode: true to enable target, false to disable target - * @domain: PCI domain number - * @bus: PCI bus number - * - * Returns: - * 0: Success - * -EINVAL: Invalid domain or bus number - * -ENOSYS: Capability not available - * -EBUSY: Legacy VGA I/O cannot be retargeted at this time - */ -int uv_bios_set_legacy_vga_target(bool decode, int domain, int bus) -{ - return uv_bios_call(UV_BIOS_SET_LEGACY_VGA_TARGET, - (u64)decode, (u64)domain, (u64)bus, 0, 0); -} -EXPORT_SYMBOL_GPL(uv_bios_set_legacy_vga_target); - - -#ifdef CONFIG_EFI -void uv_bios_init(void) -{ - struct uv_systab *tab; - - if ((efi.uv_systab == EFI_INVALID_TABLE_ADDR) || - (efi.uv_systab == (unsigned long)NULL)) { - printk(KERN_CRIT "No EFI UV System Table.\n"); - uv_systab.function = (unsigned long)NULL; - return; - } - - tab = (struct uv_systab *)ioremap(efi.uv_systab, - sizeof(struct uv_systab)); - if (strncmp(tab->signature, "UVST", 4) != 0) - printk(KERN_ERR "bad signature in UV system table!"); - - /* - * Copy table to permanent spot for later use. - */ - memcpy(&uv_systab, tab, sizeof(struct uv_systab)); - iounmap(tab); - - printk(KERN_INFO "EFI UV System Table Revision %d\n", - uv_systab.revision); -} -#else /* !CONFIG_EFI */ - -void uv_bios_init(void) { } -#endif diff --git a/ANDROID_3.4.5/arch/x86/platform/uv/tlb_uv.c b/ANDROID_3.4.5/arch/x86/platform/uv/tlb_uv.c deleted file mode 100644 index 59880afa..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/uv/tlb_uv.c +++ /dev/null @@ -1,2122 +0,0 @@ -/* - * SGI UltraViolet TLB flush routines. - * - * (c) 2008-2011 Cliff Wickman <cpw@sgi.com>, SGI. - * - * This code is released under the GNU General Public License version 2 or - * later. - */ -#include <linux/seq_file.h> -#include <linux/proc_fs.h> -#include <linux/debugfs.h> -#include <linux/kernel.h> -#include <linux/slab.h> -#include <linux/delay.h> - -#include <asm/mmu_context.h> -#include <asm/uv/uv.h> -#include <asm/uv/uv_mmrs.h> -#include <asm/uv/uv_hub.h> -#include <asm/uv/uv_bau.h> -#include <asm/apic.h> -#include <asm/idle.h> -#include <asm/tsc.h> -#include <asm/irq_vectors.h> -#include <asm/timer.h> - -/* timeouts in nanoseconds (indexed by UVH_AGING_PRESCALE_SEL urgency7 30:28) */ -static int timeout_base_ns[] = { - 20, - 160, - 1280, - 10240, - 81920, - 655360, - 5242880, - 167772160 -}; - -static int timeout_us; -static int nobau; -static int baudisabled; -static spinlock_t disable_lock; -static cycles_t congested_cycles; - -/* tunables: */ -static int max_concurr = MAX_BAU_CONCURRENT; -static int max_concurr_const = MAX_BAU_CONCURRENT; -static int plugged_delay = PLUGGED_DELAY; -static int plugsb4reset = PLUGSB4RESET; -static int timeoutsb4reset = TIMEOUTSB4RESET; -static int ipi_reset_limit = IPI_RESET_LIMIT; -static int complete_threshold = COMPLETE_THRESHOLD; -static int congested_respns_us = CONGESTED_RESPONSE_US; -static int congested_reps = CONGESTED_REPS; -static int congested_period = CONGESTED_PERIOD; - -static struct tunables tunables[] = { - {&max_concurr, MAX_BAU_CONCURRENT}, /* must be [0] */ - {&plugged_delay, PLUGGED_DELAY}, - {&plugsb4reset, PLUGSB4RESET}, - {&timeoutsb4reset, TIMEOUTSB4RESET}, - {&ipi_reset_limit, IPI_RESET_LIMIT}, - {&complete_threshold, COMPLETE_THRESHOLD}, - {&congested_respns_us, CONGESTED_RESPONSE_US}, - {&congested_reps, CONGESTED_REPS}, - {&congested_period, CONGESTED_PERIOD} -}; - -static struct dentry *tunables_dir; -static struct dentry *tunables_file; - -/* these correspond to the statistics printed by ptc_seq_show() */ -static char *stat_description[] = { - "sent: number of shootdown messages sent", - "stime: time spent sending messages", - "numuvhubs: number of hubs targeted with shootdown", - "numuvhubs16: number times 16 or more hubs targeted", - "numuvhubs8: number times 8 or more hubs targeted", - "numuvhubs4: number times 4 or more hubs targeted", - "numuvhubs2: number times 2 or more hubs targeted", - "numuvhubs1: number times 1 hub targeted", - "numcpus: number of cpus targeted with shootdown", - "dto: number of destination timeouts", - "retries: destination timeout retries sent", - "rok: : destination timeouts successfully retried", - "resetp: ipi-style resource resets for plugs", - "resett: ipi-style resource resets for timeouts", - "giveup: fall-backs to ipi-style shootdowns", - "sto: number of source timeouts", - "bz: number of stay-busy's", - "throt: number times spun in throttle", - "swack: image of UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE", - "recv: shootdown messages received", - "rtime: time spent processing messages", - "all: shootdown all-tlb messages", - "one: shootdown one-tlb messages", - "mult: interrupts that found multiple messages", - "none: interrupts that found no messages", - "retry: number of retry messages processed", - "canc: number messages canceled by retries", - "nocan: number retries that found nothing to cancel", - "reset: number of ipi-style reset requests processed", - "rcan: number messages canceled by reset requests", - "disable: number times use of the BAU was disabled", - "enable: number times use of the BAU was re-enabled" -}; - -static int __init -setup_nobau(char *arg) -{ - nobau = 1; - return 0; -} -early_param("nobau", setup_nobau); - -/* base pnode in this partition */ -static int uv_base_pnode __read_mostly; - -static DEFINE_PER_CPU(struct ptc_stats, ptcstats); -static DEFINE_PER_CPU(struct bau_control, bau_control); -static DEFINE_PER_CPU(cpumask_var_t, uv_flush_tlb_mask); - -/* - * Determine the first node on a uvhub. 'Nodes' are used for kernel - * memory allocation. - */ -static int __init uvhub_to_first_node(int uvhub) -{ - int node, b; - - for_each_online_node(node) { - b = uv_node_to_blade_id(node); - if (uvhub == b) - return node; - } - return -1; -} - -/* - * Determine the apicid of the first cpu on a uvhub. - */ -static int __init uvhub_to_first_apicid(int uvhub) -{ - int cpu; - - for_each_present_cpu(cpu) - if (uvhub == uv_cpu_to_blade_id(cpu)) - return per_cpu(x86_cpu_to_apicid, cpu); - return -1; -} - -/* - * Free a software acknowledge hardware resource by clearing its Pending - * bit. This will return a reply to the sender. - * If the message has timed out, a reply has already been sent by the - * hardware but the resource has not been released. In that case our - * clear of the Timeout bit (as well) will free the resource. No reply will - * be sent (the hardware will only do one reply per message). - */ -static void reply_to_message(struct msg_desc *mdp, struct bau_control *bcp, - int do_acknowledge) -{ - unsigned long dw; - struct bau_pq_entry *msg; - - msg = mdp->msg; - if (!msg->canceled && do_acknowledge) { - dw = (msg->swack_vec << UV_SW_ACK_NPENDING) | msg->swack_vec; - write_mmr_sw_ack(dw); - } - msg->replied_to = 1; - msg->swack_vec = 0; -} - -/* - * Process the receipt of a RETRY message - */ -static void bau_process_retry_msg(struct msg_desc *mdp, - struct bau_control *bcp) -{ - int i; - int cancel_count = 0; - unsigned long msg_res; - unsigned long mmr = 0; - struct bau_pq_entry *msg = mdp->msg; - struct bau_pq_entry *msg2; - struct ptc_stats *stat = bcp->statp; - - stat->d_retries++; - /* - * cancel any message from msg+1 to the retry itself - */ - for (msg2 = msg+1, i = 0; i < DEST_Q_SIZE; msg2++, i++) { - if (msg2 > mdp->queue_last) - msg2 = mdp->queue_first; - if (msg2 == msg) - break; - - /* same conditions for cancellation as do_reset */ - if ((msg2->replied_to == 0) && (msg2->canceled == 0) && - (msg2->swack_vec) && ((msg2->swack_vec & - msg->swack_vec) == 0) && - (msg2->sending_cpu == msg->sending_cpu) && - (msg2->msg_type != MSG_NOOP)) { - mmr = read_mmr_sw_ack(); - msg_res = msg2->swack_vec; - /* - * This is a message retry; clear the resources held - * by the previous message only if they timed out. - * If it has not timed out we have an unexpected - * situation to report. - */ - if (mmr & (msg_res << UV_SW_ACK_NPENDING)) { - unsigned long mr; - /* - * Is the resource timed out? - * Make everyone ignore the cancelled message. - */ - msg2->canceled = 1; - stat->d_canceled++; - cancel_count++; - mr = (msg_res << UV_SW_ACK_NPENDING) | msg_res; - write_mmr_sw_ack(mr); - } - } - } - if (!cancel_count) - stat->d_nocanceled++; -} - -/* - * Do all the things a cpu should do for a TLB shootdown message. - * Other cpu's may come here at the same time for this message. - */ -static void bau_process_message(struct msg_desc *mdp, struct bau_control *bcp, - int do_acknowledge) -{ - short socket_ack_count = 0; - short *sp; - struct atomic_short *asp; - struct ptc_stats *stat = bcp->statp; - struct bau_pq_entry *msg = mdp->msg; - struct bau_control *smaster = bcp->socket_master; - - /* - * This must be a normal message, or retry of a normal message - */ - if (msg->address == TLB_FLUSH_ALL) { - local_flush_tlb(); - stat->d_alltlb++; - } else { - __flush_tlb_one(msg->address); - stat->d_onetlb++; - } - stat->d_requestee++; - - /* - * One cpu on each uvhub has the additional job on a RETRY - * of releasing the resource held by the message that is - * being retried. That message is identified by sending - * cpu number. - */ - if (msg->msg_type == MSG_RETRY && bcp == bcp->uvhub_master) - bau_process_retry_msg(mdp, bcp); - - /* - * This is a swack message, so we have to reply to it. - * Count each responding cpu on the socket. This avoids - * pinging the count's cache line back and forth between - * the sockets. - */ - sp = &smaster->socket_acknowledge_count[mdp->msg_slot]; - asp = (struct atomic_short *)sp; - socket_ack_count = atom_asr(1, asp); - if (socket_ack_count == bcp->cpus_in_socket) { - int msg_ack_count; - /* - * Both sockets dump their completed count total into - * the message's count. - */ - smaster->socket_acknowledge_count[mdp->msg_slot] = 0; - asp = (struct atomic_short *)&msg->acknowledge_count; - msg_ack_count = atom_asr(socket_ack_count, asp); - - if (msg_ack_count == bcp->cpus_in_uvhub) { - /* - * All cpus in uvhub saw it; reply - * (unless we are in the UV2 workaround) - */ - reply_to_message(mdp, bcp, do_acknowledge); - } - } - - return; -} - -/* - * Determine the first cpu on a pnode. - */ -static int pnode_to_first_cpu(int pnode, struct bau_control *smaster) -{ - int cpu; - struct hub_and_pnode *hpp; - - for_each_present_cpu(cpu) { - hpp = &smaster->thp[cpu]; - if (pnode == hpp->pnode) - return cpu; - } - return -1; -} - -/* - * Last resort when we get a large number of destination timeouts is - * to clear resources held by a given cpu. - * Do this with IPI so that all messages in the BAU message queue - * can be identified by their nonzero swack_vec field. - * - * This is entered for a single cpu on the uvhub. - * The sender want's this uvhub to free a specific message's - * swack resources. - */ -static void do_reset(void *ptr) -{ - int i; - struct bau_control *bcp = &per_cpu(bau_control, smp_processor_id()); - struct reset_args *rap = (struct reset_args *)ptr; - struct bau_pq_entry *msg; - struct ptc_stats *stat = bcp->statp; - - stat->d_resets++; - /* - * We're looking for the given sender, and - * will free its swack resource. - * If all cpu's finally responded after the timeout, its - * message 'replied_to' was set. - */ - for (msg = bcp->queue_first, i = 0; i < DEST_Q_SIZE; msg++, i++) { - unsigned long msg_res; - /* do_reset: same conditions for cancellation as - bau_process_retry_msg() */ - if ((msg->replied_to == 0) && - (msg->canceled == 0) && - (msg->sending_cpu == rap->sender) && - (msg->swack_vec) && - (msg->msg_type != MSG_NOOP)) { - unsigned long mmr; - unsigned long mr; - /* - * make everyone else ignore this message - */ - msg->canceled = 1; - /* - * only reset the resource if it is still pending - */ - mmr = read_mmr_sw_ack(); - msg_res = msg->swack_vec; - mr = (msg_res << UV_SW_ACK_NPENDING) | msg_res; - if (mmr & msg_res) { - stat->d_rcanceled++; - write_mmr_sw_ack(mr); - } - } - } - return; -} - -/* - * Use IPI to get all target uvhubs to release resources held by - * a given sending cpu number. - */ -static void reset_with_ipi(struct pnmask *distribution, struct bau_control *bcp) -{ - int pnode; - int apnode; - int maskbits; - int sender = bcp->cpu; - cpumask_t *mask = bcp->uvhub_master->cpumask; - struct bau_control *smaster = bcp->socket_master; - struct reset_args reset_args; - - reset_args.sender = sender; - cpus_clear(*mask); - /* find a single cpu for each uvhub in this distribution mask */ - maskbits = sizeof(struct pnmask) * BITSPERBYTE; - /* each bit is a pnode relative to the partition base pnode */ - for (pnode = 0; pnode < maskbits; pnode++) { - int cpu; - if (!bau_uvhub_isset(pnode, distribution)) - continue; - apnode = pnode + bcp->partition_base_pnode; - cpu = pnode_to_first_cpu(apnode, smaster); - cpu_set(cpu, *mask); - } - - /* IPI all cpus; preemption is already disabled */ - smp_call_function_many(mask, do_reset, (void *)&reset_args, 1); - return; -} - -static inline unsigned long cycles_2_us(unsigned long long cyc) -{ - unsigned long long ns; - unsigned long us; - int cpu = smp_processor_id(); - - ns = (cyc * per_cpu(cyc2ns, cpu)) >> CYC2NS_SCALE_FACTOR; - us = ns / 1000; - return us; -} - -/* - * wait for all cpus on this hub to finish their sends and go quiet - * leaves uvhub_quiesce set so that no new broadcasts are started by - * bau_flush_send_and_wait() - */ -static inline void quiesce_local_uvhub(struct bau_control *hmaster) -{ - atom_asr(1, (struct atomic_short *)&hmaster->uvhub_quiesce); -} - -/* - * mark this quiet-requestor as done - */ -static inline void end_uvhub_quiesce(struct bau_control *hmaster) -{ - atom_asr(-1, (struct atomic_short *)&hmaster->uvhub_quiesce); -} - -static unsigned long uv1_read_status(unsigned long mmr_offset, int right_shift) -{ - unsigned long descriptor_status; - - descriptor_status = uv_read_local_mmr(mmr_offset); - descriptor_status >>= right_shift; - descriptor_status &= UV_ACT_STATUS_MASK; - return descriptor_status; -} - -/* - * Wait for completion of a broadcast software ack message - * return COMPLETE, RETRY(PLUGGED or TIMEOUT) or GIVEUP - */ -static int uv1_wait_completion(struct bau_desc *bau_desc, - unsigned long mmr_offset, int right_shift, - struct bau_control *bcp, long try) -{ - unsigned long descriptor_status; - cycles_t ttm; - struct ptc_stats *stat = bcp->statp; - - descriptor_status = uv1_read_status(mmr_offset, right_shift); - /* spin on the status MMR, waiting for it to go idle */ - while ((descriptor_status != DS_IDLE)) { - /* - * Our software ack messages may be blocked because - * there are no swack resources available. As long - * as none of them has timed out hardware will NACK - * our message and its state will stay IDLE. - */ - if (descriptor_status == DS_SOURCE_TIMEOUT) { - stat->s_stimeout++; - return FLUSH_GIVEUP; - } else if (descriptor_status == DS_DESTINATION_TIMEOUT) { - stat->s_dtimeout++; - ttm = get_cycles(); - - /* - * Our retries may be blocked by all destination - * swack resources being consumed, and a timeout - * pending. In that case hardware returns the - * ERROR that looks like a destination timeout. - */ - if (cycles_2_us(ttm - bcp->send_message) < timeout_us) { - bcp->conseccompletes = 0; - return FLUSH_RETRY_PLUGGED; - } - - bcp->conseccompletes = 0; - return FLUSH_RETRY_TIMEOUT; - } else { - /* - * descriptor_status is still BUSY - */ - cpu_relax(); - } - descriptor_status = uv1_read_status(mmr_offset, right_shift); - } - bcp->conseccompletes++; - return FLUSH_COMPLETE; -} - -/* - * UV2 has an extra bit of status in the ACTIVATION_STATUS_2 register. - */ -static unsigned long uv2_read_status(unsigned long offset, int rshft, int desc) -{ - unsigned long descriptor_status; - unsigned long descriptor_status2; - - descriptor_status = ((read_lmmr(offset) >> rshft) & UV_ACT_STATUS_MASK); - descriptor_status2 = (read_mmr_uv2_status() >> desc) & 0x1UL; - descriptor_status = (descriptor_status << 1) | descriptor_status2; - return descriptor_status; -} - -/* - * Return whether the status of the descriptor that is normally used for this - * cpu (the one indexed by its hub-relative cpu number) is busy. - * The status of the original 32 descriptors is always reflected in the 64 - * bits of UVH_LB_BAU_SB_ACTIVATION_STATUS_0. - * The bit provided by the activation_status_2 register is irrelevant to - * the status if it is only being tested for busy or not busy. - */ -int normal_busy(struct bau_control *bcp) -{ - int cpu = bcp->uvhub_cpu; - int mmr_offset; - int right_shift; - - mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0; - right_shift = cpu * UV_ACT_STATUS_SIZE; - return (((((read_lmmr(mmr_offset) >> right_shift) & - UV_ACT_STATUS_MASK)) << 1) == UV2H_DESC_BUSY); -} - -/* - * Entered when a bau descriptor has gone into a permanent busy wait because - * of a hardware bug. - * Workaround the bug. - */ -int handle_uv2_busy(struct bau_control *bcp) -{ - int busy_one = bcp->using_desc; - int normal = bcp->uvhub_cpu; - int selected = -1; - int i; - unsigned long descriptor_status; - unsigned long status; - int mmr_offset; - struct bau_desc *bau_desc_old; - struct bau_desc *bau_desc_new; - struct bau_control *hmaster = bcp->uvhub_master; - struct ptc_stats *stat = bcp->statp; - cycles_t ttm; - - stat->s_uv2_wars++; - spin_lock(&hmaster->uvhub_lock); - /* try for the original first */ - if (busy_one != normal) { - if (!normal_busy(bcp)) - selected = normal; - } - if (selected < 0) { - /* can't use the normal, select an alternate */ - mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_1; - descriptor_status = read_lmmr(mmr_offset); - - /* scan available descriptors 32-63 */ - for (i = 0; i < UV_CPUS_PER_AS; i++) { - if ((hmaster->inuse_map & (1 << i)) == 0) { - status = ((descriptor_status >> - (i * UV_ACT_STATUS_SIZE)) & - UV_ACT_STATUS_MASK) << 1; - if (status != UV2H_DESC_BUSY) { - selected = i + UV_CPUS_PER_AS; - break; - } - } - } - } - - if (busy_one != normal) - /* mark the busy alternate as not in-use */ - hmaster->inuse_map &= ~(1 << (busy_one - UV_CPUS_PER_AS)); - - if (selected >= 0) { - /* switch to the selected descriptor */ - if (selected != normal) { - /* set the selected alternate as in-use */ - hmaster->inuse_map |= - (1 << (selected - UV_CPUS_PER_AS)); - if (selected > stat->s_uv2_wars_hw) - stat->s_uv2_wars_hw = selected; - } - bau_desc_old = bcp->descriptor_base; - bau_desc_old += (ITEMS_PER_DESC * busy_one); - bcp->using_desc = selected; - bau_desc_new = bcp->descriptor_base; - bau_desc_new += (ITEMS_PER_DESC * selected); - *bau_desc_new = *bau_desc_old; - } else { - /* - * All are busy. Wait for the normal one for this cpu to - * free up. - */ - stat->s_uv2_war_waits++; - spin_unlock(&hmaster->uvhub_lock); - ttm = get_cycles(); - do { - cpu_relax(); - } while (normal_busy(bcp)); - spin_lock(&hmaster->uvhub_lock); - /* switch to the original descriptor */ - bcp->using_desc = normal; - bau_desc_old = bcp->descriptor_base; - bau_desc_old += (ITEMS_PER_DESC * bcp->using_desc); - bcp->using_desc = (ITEMS_PER_DESC * normal); - bau_desc_new = bcp->descriptor_base; - bau_desc_new += (ITEMS_PER_DESC * normal); - *bau_desc_new = *bau_desc_old; /* copy the entire descriptor */ - } - spin_unlock(&hmaster->uvhub_lock); - return FLUSH_RETRY_BUSYBUG; -} - -static int uv2_wait_completion(struct bau_desc *bau_desc, - unsigned long mmr_offset, int right_shift, - struct bau_control *bcp, long try) -{ - unsigned long descriptor_stat; - cycles_t ttm; - int desc = bcp->using_desc; - long busy_reps = 0; - struct ptc_stats *stat = bcp->statp; - - descriptor_stat = uv2_read_status(mmr_offset, right_shift, desc); - - /* spin on the status MMR, waiting for it to go idle */ - while (descriptor_stat != UV2H_DESC_IDLE) { - /* - * Our software ack messages may be blocked because - * there are no swack resources available. As long - * as none of them has timed out hardware will NACK - * our message and its state will stay IDLE. - */ - if ((descriptor_stat == UV2H_DESC_SOURCE_TIMEOUT) || - (descriptor_stat == UV2H_DESC_DEST_PUT_ERR)) { - stat->s_stimeout++; - return FLUSH_GIVEUP; - } else if (descriptor_stat == UV2H_DESC_DEST_STRONG_NACK) { - stat->s_strongnacks++; - bcp->conseccompletes = 0; - return FLUSH_GIVEUP; - } else if (descriptor_stat == UV2H_DESC_DEST_TIMEOUT) { - stat->s_dtimeout++; - bcp->conseccompletes = 0; - return FLUSH_RETRY_TIMEOUT; - } else { - busy_reps++; - if (busy_reps > 1000000) { - /* not to hammer on the clock */ - busy_reps = 0; - ttm = get_cycles(); - if ((ttm - bcp->send_message) > - (bcp->clocks_per_100_usec)) { - return handle_uv2_busy(bcp); - } - } - /* - * descriptor_stat is still BUSY - */ - cpu_relax(); - } - descriptor_stat = uv2_read_status(mmr_offset, right_shift, - desc); - } - bcp->conseccompletes++; - return FLUSH_COMPLETE; -} - -/* - * There are 2 status registers; each and array[32] of 2 bits. Set up for - * which register to read and position in that register based on cpu in - * current hub. - */ -static int wait_completion(struct bau_desc *bau_desc, - struct bau_control *bcp, long try) -{ - int right_shift; - unsigned long mmr_offset; - int desc = bcp->using_desc; - - if (desc < UV_CPUS_PER_AS) { - mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_0; - right_shift = desc * UV_ACT_STATUS_SIZE; - } else { - mmr_offset = UVH_LB_BAU_SB_ACTIVATION_STATUS_1; - right_shift = ((desc - UV_CPUS_PER_AS) * UV_ACT_STATUS_SIZE); - } - - if (bcp->uvhub_version == 1) - return uv1_wait_completion(bau_desc, mmr_offset, right_shift, - bcp, try); - else - return uv2_wait_completion(bau_desc, mmr_offset, right_shift, - bcp, try); -} - -static inline cycles_t sec_2_cycles(unsigned long sec) -{ - unsigned long ns; - cycles_t cyc; - - ns = sec * 1000000000; - cyc = (ns << CYC2NS_SCALE_FACTOR)/(per_cpu(cyc2ns, smp_processor_id())); - return cyc; -} - -/* - * Our retries are blocked by all destination sw ack resources being - * in use, and a timeout is pending. In that case hardware immediately - * returns the ERROR that looks like a destination timeout. - */ -static void destination_plugged(struct bau_desc *bau_desc, - struct bau_control *bcp, - struct bau_control *hmaster, struct ptc_stats *stat) -{ - udelay(bcp->plugged_delay); - bcp->plugged_tries++; - - if (bcp->plugged_tries >= bcp->plugsb4reset) { - bcp->plugged_tries = 0; - - quiesce_local_uvhub(hmaster); - - spin_lock(&hmaster->queue_lock); - reset_with_ipi(&bau_desc->distribution, bcp); - spin_unlock(&hmaster->queue_lock); - - end_uvhub_quiesce(hmaster); - - bcp->ipi_attempts++; - stat->s_resets_plug++; - } -} - -static void destination_timeout(struct bau_desc *bau_desc, - struct bau_control *bcp, struct bau_control *hmaster, - struct ptc_stats *stat) -{ - hmaster->max_concurr = 1; - bcp->timeout_tries++; - if (bcp->timeout_tries >= bcp->timeoutsb4reset) { - bcp->timeout_tries = 0; - - quiesce_local_uvhub(hmaster); - - spin_lock(&hmaster->queue_lock); - reset_with_ipi(&bau_desc->distribution, bcp); - spin_unlock(&hmaster->queue_lock); - - end_uvhub_quiesce(hmaster); - - bcp->ipi_attempts++; - stat->s_resets_timeout++; - } -} - -/* - * Completions are taking a very long time due to a congested numalink - * network. - */ -static void disable_for_congestion(struct bau_control *bcp, - struct ptc_stats *stat) -{ - /* let only one cpu do this disabling */ - spin_lock(&disable_lock); - - if (!baudisabled && bcp->period_requests && - ((bcp->period_time / bcp->period_requests) > congested_cycles)) { - int tcpu; - struct bau_control *tbcp; - /* it becomes this cpu's job to turn on the use of the - BAU again */ - baudisabled = 1; - bcp->set_bau_off = 1; - bcp->set_bau_on_time = get_cycles(); - bcp->set_bau_on_time += sec_2_cycles(bcp->cong_period); - stat->s_bau_disabled++; - for_each_present_cpu(tcpu) { - tbcp = &per_cpu(bau_control, tcpu); - tbcp->baudisabled = 1; - } - } - - spin_unlock(&disable_lock); -} - -static void count_max_concurr(int stat, struct bau_control *bcp, - struct bau_control *hmaster) -{ - bcp->plugged_tries = 0; - bcp->timeout_tries = 0; - if (stat != FLUSH_COMPLETE) - return; - if (bcp->conseccompletes <= bcp->complete_threshold) - return; - if (hmaster->max_concurr >= hmaster->max_concurr_const) - return; - hmaster->max_concurr++; -} - -static void record_send_stats(cycles_t time1, cycles_t time2, - struct bau_control *bcp, struct ptc_stats *stat, - int completion_status, int try) -{ - cycles_t elapsed; - - if (time2 > time1) { - elapsed = time2 - time1; - stat->s_time += elapsed; - - if ((completion_status == FLUSH_COMPLETE) && (try == 1)) { - bcp->period_requests++; - bcp->period_time += elapsed; - if ((elapsed > congested_cycles) && - (bcp->period_requests > bcp->cong_reps)) - disable_for_congestion(bcp, stat); - } - } else - stat->s_requestor--; - - if (completion_status == FLUSH_COMPLETE && try > 1) - stat->s_retriesok++; - else if (completion_status == FLUSH_GIVEUP) - stat->s_giveup++; -} - -/* - * Because of a uv1 hardware bug only a limited number of concurrent - * requests can be made. - */ -static void uv1_throttle(struct bau_control *hmaster, struct ptc_stats *stat) -{ - spinlock_t *lock = &hmaster->uvhub_lock; - atomic_t *v; - - v = &hmaster->active_descriptor_count; - if (!atomic_inc_unless_ge(lock, v, hmaster->max_concurr)) { - stat->s_throttles++; - do { - cpu_relax(); - } while (!atomic_inc_unless_ge(lock, v, hmaster->max_concurr)); - } -} - -/* - * Handle the completion status of a message send. - */ -static void handle_cmplt(int completion_status, struct bau_desc *bau_desc, - struct bau_control *bcp, struct bau_control *hmaster, - struct ptc_stats *stat) -{ - if (completion_status == FLUSH_RETRY_PLUGGED) - destination_plugged(bau_desc, bcp, hmaster, stat); - else if (completion_status == FLUSH_RETRY_TIMEOUT) - destination_timeout(bau_desc, bcp, hmaster, stat); -} - -/* - * Send a broadcast and wait for it to complete. - * - * The flush_mask contains the cpus the broadcast is to be sent to including - * cpus that are on the local uvhub. - * - * Returns 0 if all flushing represented in the mask was done. - * Returns 1 if it gives up entirely and the original cpu mask is to be - * returned to the kernel. - */ -int uv_flush_send_and_wait(struct cpumask *flush_mask, struct bau_control *bcp) -{ - int seq_number = 0; - int completion_stat = 0; - int uv1 = 0; - long try = 0; - unsigned long index; - cycles_t time1; - cycles_t time2; - struct ptc_stats *stat = bcp->statp; - struct bau_control *hmaster = bcp->uvhub_master; - struct uv1_bau_msg_header *uv1_hdr = NULL; - struct uv2_bau_msg_header *uv2_hdr = NULL; - struct bau_desc *bau_desc; - - if (bcp->uvhub_version == 1) - uv1_throttle(hmaster, stat); - - while (hmaster->uvhub_quiesce) - cpu_relax(); - - time1 = get_cycles(); - do { - bau_desc = bcp->descriptor_base; - bau_desc += (ITEMS_PER_DESC * bcp->using_desc); - if (bcp->uvhub_version == 1) { - uv1 = 1; - uv1_hdr = &bau_desc->header.uv1_hdr; - } else - uv2_hdr = &bau_desc->header.uv2_hdr; - if ((try == 0) || (completion_stat == FLUSH_RETRY_BUSYBUG)) { - if (uv1) - uv1_hdr->msg_type = MSG_REGULAR; - else - uv2_hdr->msg_type = MSG_REGULAR; - seq_number = bcp->message_number++; - } else { - if (uv1) - uv1_hdr->msg_type = MSG_RETRY; - else - uv2_hdr->msg_type = MSG_RETRY; - stat->s_retry_messages++; - } - - if (uv1) - uv1_hdr->sequence = seq_number; - else - uv2_hdr->sequence = seq_number; - index = (1UL << AS_PUSH_SHIFT) | bcp->using_desc; - bcp->send_message = get_cycles(); - - write_mmr_activation(index); - - try++; - completion_stat = wait_completion(bau_desc, bcp, try); - /* UV2: wait_completion() may change the bcp->using_desc */ - - handle_cmplt(completion_stat, bau_desc, bcp, hmaster, stat); - - if (bcp->ipi_attempts >= bcp->ipi_reset_limit) { - bcp->ipi_attempts = 0; - completion_stat = FLUSH_GIVEUP; - break; - } - cpu_relax(); - } while ((completion_stat == FLUSH_RETRY_PLUGGED) || - (completion_stat == FLUSH_RETRY_BUSYBUG) || - (completion_stat == FLUSH_RETRY_TIMEOUT)); - - time2 = get_cycles(); - - count_max_concurr(completion_stat, bcp, hmaster); - - while (hmaster->uvhub_quiesce) - cpu_relax(); - - atomic_dec(&hmaster->active_descriptor_count); - - record_send_stats(time1, time2, bcp, stat, completion_stat, try); - - if (completion_stat == FLUSH_GIVEUP) - /* FLUSH_GIVEUP will fall back to using IPI's for tlb flush */ - return 1; - return 0; -} - -/* - * The BAU is disabled. When the disabled time period has expired, the cpu - * that disabled it must re-enable it. - * Return 0 if it is re-enabled for all cpus. - */ -static int check_enable(struct bau_control *bcp, struct ptc_stats *stat) -{ - int tcpu; - struct bau_control *tbcp; - - if (bcp->set_bau_off) { - if (get_cycles() >= bcp->set_bau_on_time) { - stat->s_bau_reenabled++; - baudisabled = 0; - for_each_present_cpu(tcpu) { - tbcp = &per_cpu(bau_control, tcpu); - tbcp->baudisabled = 0; - tbcp->period_requests = 0; - tbcp->period_time = 0; - } - return 0; - } - } - return -1; -} - -static void record_send_statistics(struct ptc_stats *stat, int locals, int hubs, - int remotes, struct bau_desc *bau_desc) -{ - stat->s_requestor++; - stat->s_ntargcpu += remotes + locals; - stat->s_ntargremotes += remotes; - stat->s_ntarglocals += locals; - - /* uvhub statistics */ - hubs = bau_uvhub_weight(&bau_desc->distribution); - if (locals) { - stat->s_ntarglocaluvhub++; - stat->s_ntargremoteuvhub += (hubs - 1); - } else - stat->s_ntargremoteuvhub += hubs; - - stat->s_ntarguvhub += hubs; - - if (hubs >= 16) - stat->s_ntarguvhub16++; - else if (hubs >= 8) - stat->s_ntarguvhub8++; - else if (hubs >= 4) - stat->s_ntarguvhub4++; - else if (hubs >= 2) - stat->s_ntarguvhub2++; - else - stat->s_ntarguvhub1++; -} - -/* - * Translate a cpu mask to the uvhub distribution mask in the BAU - * activation descriptor. - */ -static int set_distrib_bits(struct cpumask *flush_mask, struct bau_control *bcp, - struct bau_desc *bau_desc, int *localsp, int *remotesp) -{ - int cpu; - int pnode; - int cnt = 0; - struct hub_and_pnode *hpp; - - for_each_cpu(cpu, flush_mask) { - /* - * The distribution vector is a bit map of pnodes, relative - * to the partition base pnode (and the partition base nasid - * in the header). - * Translate cpu to pnode and hub using a local memory array. - */ - hpp = &bcp->socket_master->thp[cpu]; - pnode = hpp->pnode - bcp->partition_base_pnode; - bau_uvhub_set(pnode, &bau_desc->distribution); - cnt++; - if (hpp->uvhub == bcp->uvhub) - (*localsp)++; - else - (*remotesp)++; - } - if (!cnt) - return 1; - return 0; -} - -/* - * globally purge translation cache of a virtual address or all TLB's - * @cpumask: mask of all cpu's in which the address is to be removed - * @mm: mm_struct containing virtual address range - * @va: virtual address to be removed (or TLB_FLUSH_ALL for all TLB's on cpu) - * @cpu: the current cpu - * - * This is the entry point for initiating any UV global TLB shootdown. - * - * Purges the translation caches of all specified processors of the given - * virtual address, or purges all TLB's on specified processors. - * - * The caller has derived the cpumask from the mm_struct. This function - * is called only if there are bits set in the mask. (e.g. flush_tlb_page()) - * - * The cpumask is converted into a uvhubmask of the uvhubs containing - * those cpus. - * - * Note that this function should be called with preemption disabled. - * - * Returns NULL if all remote flushing was done. - * Returns pointer to cpumask if some remote flushing remains to be - * done. The returned pointer is valid till preemption is re-enabled. - */ -const struct cpumask *uv_flush_tlb_others(const struct cpumask *cpumask, - struct mm_struct *mm, unsigned long va, - unsigned int cpu) -{ - int locals = 0; - int remotes = 0; - int hubs = 0; - struct bau_desc *bau_desc; - struct cpumask *flush_mask; - struct ptc_stats *stat; - struct bau_control *bcp; - - /* kernel was booted 'nobau' */ - if (nobau) - return cpumask; - - bcp = &per_cpu(bau_control, cpu); - stat = bcp->statp; - - /* bau was disabled due to slow response */ - if (bcp->baudisabled) { - if (check_enable(bcp, stat)) - return cpumask; - } - - /* - * Each sending cpu has a per-cpu mask which it fills from the caller's - * cpu mask. All cpus are converted to uvhubs and copied to the - * activation descriptor. - */ - flush_mask = (struct cpumask *)per_cpu(uv_flush_tlb_mask, cpu); - /* don't actually do a shootdown of the local cpu */ - cpumask_andnot(flush_mask, cpumask, cpumask_of(cpu)); - - if (cpu_isset(cpu, *cpumask)) - stat->s_ntargself++; - - bau_desc = bcp->descriptor_base; - bau_desc += (ITEMS_PER_DESC * bcp->using_desc); - bau_uvhubs_clear(&bau_desc->distribution, UV_DISTRIBUTION_SIZE); - if (set_distrib_bits(flush_mask, bcp, bau_desc, &locals, &remotes)) - return NULL; - - record_send_statistics(stat, locals, hubs, remotes, bau_desc); - - bau_desc->payload.address = va; - bau_desc->payload.sending_cpu = cpu; - /* - * uv_flush_send_and_wait returns 0 if all cpu's were messaged, - * or 1 if it gave up and the original cpumask should be returned. - */ - if (!uv_flush_send_and_wait(flush_mask, bcp)) - return NULL; - else - return cpumask; -} - -/* - * Search the message queue for any 'other' message with the same software - * acknowledge resource bit vector. - */ -struct bau_pq_entry *find_another_by_swack(struct bau_pq_entry *msg, - struct bau_control *bcp, unsigned char swack_vec) -{ - struct bau_pq_entry *msg_next = msg + 1; - - if (msg_next > bcp->queue_last) - msg_next = bcp->queue_first; - while ((msg_next->swack_vec != 0) && (msg_next != msg)) { - if (msg_next->swack_vec == swack_vec) - return msg_next; - msg_next++; - if (msg_next > bcp->queue_last) - msg_next = bcp->queue_first; - } - return NULL; -} - -/* - * UV2 needs to work around a bug in which an arriving message has not - * set a bit in the UVH_LB_BAU_INTD_SOFTWARE_ACKNOWLEDGE register. - * Such a message must be ignored. - */ -void process_uv2_message(struct msg_desc *mdp, struct bau_control *bcp) -{ - unsigned long mmr_image; - unsigned char swack_vec; - struct bau_pq_entry *msg = mdp->msg; - struct bau_pq_entry *other_msg; - - mmr_image = read_mmr_sw_ack(); - swack_vec = msg->swack_vec; - - if ((swack_vec & mmr_image) == 0) { - /* - * This message was assigned a swack resource, but no - * reserved acknowlegment is pending. - * The bug has prevented this message from setting the MMR. - * And no other message has used the same sw_ack resource. - * Do the requested shootdown but do not reply to the msg. - * (the 0 means make no acknowledge) - */ - bau_process_message(mdp, bcp, 0); - return; - } - - /* - * Some message has set the MMR 'pending' bit; it might have been - * another message. Look for that message. - */ - other_msg = find_another_by_swack(msg, bcp, msg->swack_vec); - if (other_msg) { - /* There is another. Do not ack the current one. */ - bau_process_message(mdp, bcp, 0); - /* - * Let the natural processing of that message acknowledge - * it. Don't get the processing of sw_ack's out of order. - */ - return; - } - - /* - * There is no other message using this sw_ack, so it is safe to - * acknowledge it. - */ - bau_process_message(mdp, bcp, 1); - - return; -} - -/* - * The BAU message interrupt comes here. (registered by set_intr_gate) - * See entry_64.S - * - * We received a broadcast assist message. - * - * Interrupts are disabled; this interrupt could represent - * the receipt of several messages. - * - * All cores/threads on this hub get this interrupt. - * The last one to see it does the software ack. - * (the resource will not be freed until noninterruptable cpus see this - * interrupt; hardware may timeout the s/w ack and reply ERROR) - */ -void uv_bau_message_interrupt(struct pt_regs *regs) -{ - int count = 0; - cycles_t time_start; - struct bau_pq_entry *msg; - struct bau_control *bcp; - struct ptc_stats *stat; - struct msg_desc msgdesc; - - ack_APIC_irq(); - time_start = get_cycles(); - - bcp = &per_cpu(bau_control, smp_processor_id()); - stat = bcp->statp; - - msgdesc.queue_first = bcp->queue_first; - msgdesc.queue_last = bcp->queue_last; - - msg = bcp->bau_msg_head; - while (msg->swack_vec) { - count++; - - msgdesc.msg_slot = msg - msgdesc.queue_first; - msgdesc.msg = msg; - if (bcp->uvhub_version == 2) - process_uv2_message(&msgdesc, bcp); - else - bau_process_message(&msgdesc, bcp, 1); - - msg++; - if (msg > msgdesc.queue_last) - msg = msgdesc.queue_first; - bcp->bau_msg_head = msg; - } - stat->d_time += (get_cycles() - time_start); - if (!count) - stat->d_nomsg++; - else if (count > 1) - stat->d_multmsg++; -} - -/* - * Each target uvhub (i.e. a uvhub that has cpu's) needs to have - * shootdown message timeouts enabled. The timeout does not cause - * an interrupt, but causes an error message to be returned to - * the sender. - */ -static void __init enable_timeouts(void) -{ - int uvhub; - int nuvhubs; - int pnode; - unsigned long mmr_image; - - nuvhubs = uv_num_possible_blades(); - - for (uvhub = 0; uvhub < nuvhubs; uvhub++) { - if (!uv_blade_nr_possible_cpus(uvhub)) - continue; - - pnode = uv_blade_to_pnode(uvhub); - mmr_image = read_mmr_misc_control(pnode); - /* - * Set the timeout period and then lock it in, in three - * steps; captures and locks in the period. - * - * To program the period, the SOFT_ACK_MODE must be off. - */ - mmr_image &= ~(1L << SOFTACK_MSHIFT); - write_mmr_misc_control(pnode, mmr_image); - /* - * Set the 4-bit period. - */ - mmr_image &= ~((unsigned long)0xf << SOFTACK_PSHIFT); - mmr_image |= (SOFTACK_TIMEOUT_PERIOD << SOFTACK_PSHIFT); - write_mmr_misc_control(pnode, mmr_image); - /* - * UV1: - * Subsequent reversals of the timebase bit (3) cause an - * immediate timeout of one or all INTD resources as - * indicated in bits 2:0 (7 causes all of them to timeout). - */ - mmr_image |= (1L << SOFTACK_MSHIFT); - if (is_uv2_hub()) { - mmr_image |= (1L << UV2_EXT_SHFT); - } - write_mmr_misc_control(pnode, mmr_image); - } -} - -static void *ptc_seq_start(struct seq_file *file, loff_t *offset) -{ - if (*offset < num_possible_cpus()) - return offset; - return NULL; -} - -static void *ptc_seq_next(struct seq_file *file, void *data, loff_t *offset) -{ - (*offset)++; - if (*offset < num_possible_cpus()) - return offset; - return NULL; -} - -static void ptc_seq_stop(struct seq_file *file, void *data) -{ -} - -static inline unsigned long long usec_2_cycles(unsigned long microsec) -{ - unsigned long ns; - unsigned long long cyc; - - ns = microsec * 1000; - cyc = (ns << CYC2NS_SCALE_FACTOR)/(per_cpu(cyc2ns, smp_processor_id())); - return cyc; -} - -/* - * Display the statistics thru /proc/sgi_uv/ptc_statistics - * 'data' points to the cpu number - * Note: see the descriptions in stat_description[]. - */ -static int ptc_seq_show(struct seq_file *file, void *data) -{ - struct ptc_stats *stat; - int cpu; - - cpu = *(loff_t *)data; - if (!cpu) { - seq_printf(file, - "# cpu sent stime self locals remotes ncpus localhub "); - seq_printf(file, - "remotehub numuvhubs numuvhubs16 numuvhubs8 "); - seq_printf(file, - "numuvhubs4 numuvhubs2 numuvhubs1 dto snacks retries rok "); - seq_printf(file, - "resetp resett giveup sto bz throt swack recv rtime "); - seq_printf(file, - "all one mult none retry canc nocan reset rcan "); - seq_printf(file, - "disable enable wars warshw warwaits\n"); - } - if (cpu < num_possible_cpus() && cpu_online(cpu)) { - stat = &per_cpu(ptcstats, cpu); - /* source side statistics */ - seq_printf(file, - "cpu %d %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld ", - cpu, stat->s_requestor, cycles_2_us(stat->s_time), - stat->s_ntargself, stat->s_ntarglocals, - stat->s_ntargremotes, stat->s_ntargcpu, - stat->s_ntarglocaluvhub, stat->s_ntargremoteuvhub, - stat->s_ntarguvhub, stat->s_ntarguvhub16); - seq_printf(file, "%ld %ld %ld %ld %ld %ld ", - stat->s_ntarguvhub8, stat->s_ntarguvhub4, - stat->s_ntarguvhub2, stat->s_ntarguvhub1, - stat->s_dtimeout, stat->s_strongnacks); - seq_printf(file, "%ld %ld %ld %ld %ld %ld %ld %ld ", - stat->s_retry_messages, stat->s_retriesok, - stat->s_resets_plug, stat->s_resets_timeout, - stat->s_giveup, stat->s_stimeout, - stat->s_busy, stat->s_throttles); - - /* destination side statistics */ - seq_printf(file, - "%lx %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld %ld ", - read_gmmr_sw_ack(uv_cpu_to_pnode(cpu)), - stat->d_requestee, cycles_2_us(stat->d_time), - stat->d_alltlb, stat->d_onetlb, stat->d_multmsg, - stat->d_nomsg, stat->d_retries, stat->d_canceled, - stat->d_nocanceled, stat->d_resets, - stat->d_rcanceled); - seq_printf(file, "%ld %ld %ld %ld %ld\n", - stat->s_bau_disabled, stat->s_bau_reenabled, - stat->s_uv2_wars, stat->s_uv2_wars_hw, - stat->s_uv2_war_waits); - } - return 0; -} - -/* - * Display the tunables thru debugfs - */ -static ssize_t tunables_read(struct file *file, char __user *userbuf, - size_t count, loff_t *ppos) -{ - char *buf; - int ret; - - buf = kasprintf(GFP_KERNEL, "%s %s %s\n%d %d %d %d %d %d %d %d %d\n", - "max_concur plugged_delay plugsb4reset", - "timeoutsb4reset ipi_reset_limit complete_threshold", - "congested_response_us congested_reps congested_period", - max_concurr, plugged_delay, plugsb4reset, - timeoutsb4reset, ipi_reset_limit, complete_threshold, - congested_respns_us, congested_reps, congested_period); - - if (!buf) - return -ENOMEM; - - ret = simple_read_from_buffer(userbuf, count, ppos, buf, strlen(buf)); - kfree(buf); - return ret; -} - -/* - * handle a write to /proc/sgi_uv/ptc_statistics - * -1: reset the statistics - * 0: display meaning of the statistics - */ -static ssize_t ptc_proc_write(struct file *file, const char __user *user, - size_t count, loff_t *data) -{ - int cpu; - int i; - int elements; - long input_arg; - char optstr[64]; - struct ptc_stats *stat; - - if (count == 0 || count > sizeof(optstr)) - return -EINVAL; - if (copy_from_user(optstr, user, count)) - return -EFAULT; - optstr[count - 1] = '\0'; - - if (strict_strtol(optstr, 10, &input_arg) < 0) { - printk(KERN_DEBUG "%s is invalid\n", optstr); - return -EINVAL; - } - - if (input_arg == 0) { - elements = sizeof(stat_description)/sizeof(*stat_description); - printk(KERN_DEBUG "# cpu: cpu number\n"); - printk(KERN_DEBUG "Sender statistics:\n"); - for (i = 0; i < elements; i++) - printk(KERN_DEBUG "%s\n", stat_description[i]); - } else if (input_arg == -1) { - for_each_present_cpu(cpu) { - stat = &per_cpu(ptcstats, cpu); - memset(stat, 0, sizeof(struct ptc_stats)); - } - } - - return count; -} - -static int local_atoi(const char *name) -{ - int val = 0; - - for (;; name++) { - switch (*name) { - case '0' ... '9': - val = 10*val+(*name-'0'); - break; - default: - return val; - } - } -} - -/* - * Parse the values written to /sys/kernel/debug/sgi_uv/bau_tunables. - * Zero values reset them to defaults. - */ -static int parse_tunables_write(struct bau_control *bcp, char *instr, - int count) -{ - char *p; - char *q; - int cnt = 0; - int val; - int e = sizeof(tunables) / sizeof(*tunables); - - p = instr + strspn(instr, WHITESPACE); - q = p; - for (; *p; p = q + strspn(q, WHITESPACE)) { - q = p + strcspn(p, WHITESPACE); - cnt++; - if (q == p) - break; - } - if (cnt != e) { - printk(KERN_INFO "bau tunable error: should be %d values\n", e); - return -EINVAL; - } - - p = instr + strspn(instr, WHITESPACE); - q = p; - for (cnt = 0; *p; p = q + strspn(q, WHITESPACE), cnt++) { - q = p + strcspn(p, WHITESPACE); - val = local_atoi(p); - switch (cnt) { - case 0: - if (val == 0) { - max_concurr = MAX_BAU_CONCURRENT; - max_concurr_const = MAX_BAU_CONCURRENT; - continue; - } - if (val < 1 || val > bcp->cpus_in_uvhub) { - printk(KERN_DEBUG - "Error: BAU max concurrent %d is invalid\n", - val); - return -EINVAL; - } - max_concurr = val; - max_concurr_const = val; - continue; - default: - if (val == 0) - *tunables[cnt].tunp = tunables[cnt].deflt; - else - *tunables[cnt].tunp = val; - continue; - } - if (q == p) - break; - } - return 0; -} - -/* - * Handle a write to debugfs. (/sys/kernel/debug/sgi_uv/bau_tunables) - */ -static ssize_t tunables_write(struct file *file, const char __user *user, - size_t count, loff_t *data) -{ - int cpu; - int ret; - char instr[100]; - struct bau_control *bcp; - - if (count == 0 || count > sizeof(instr)-1) - return -EINVAL; - if (copy_from_user(instr, user, count)) - return -EFAULT; - - instr[count] = '\0'; - - cpu = get_cpu(); - bcp = &per_cpu(bau_control, cpu); - ret = parse_tunables_write(bcp, instr, count); - put_cpu(); - if (ret) - return ret; - - for_each_present_cpu(cpu) { - bcp = &per_cpu(bau_control, cpu); - bcp->max_concurr = max_concurr; - bcp->max_concurr_const = max_concurr; - bcp->plugged_delay = plugged_delay; - bcp->plugsb4reset = plugsb4reset; - bcp->timeoutsb4reset = timeoutsb4reset; - bcp->ipi_reset_limit = ipi_reset_limit; - bcp->complete_threshold = complete_threshold; - bcp->cong_response_us = congested_respns_us; - bcp->cong_reps = congested_reps; - bcp->cong_period = congested_period; - } - return count; -} - -static const struct seq_operations uv_ptc_seq_ops = { - .start = ptc_seq_start, - .next = ptc_seq_next, - .stop = ptc_seq_stop, - .show = ptc_seq_show -}; - -static int ptc_proc_open(struct inode *inode, struct file *file) -{ - return seq_open(file, &uv_ptc_seq_ops); -} - -static int tunables_open(struct inode *inode, struct file *file) -{ - return 0; -} - -static const struct file_operations proc_uv_ptc_operations = { - .open = ptc_proc_open, - .read = seq_read, - .write = ptc_proc_write, - .llseek = seq_lseek, - .release = seq_release, -}; - -static const struct file_operations tunables_fops = { - .open = tunables_open, - .read = tunables_read, - .write = tunables_write, - .llseek = default_llseek, -}; - -static int __init uv_ptc_init(void) -{ - struct proc_dir_entry *proc_uv_ptc; - - if (!is_uv_system()) - return 0; - - proc_uv_ptc = proc_create(UV_PTC_BASENAME, 0444, NULL, - &proc_uv_ptc_operations); - if (!proc_uv_ptc) { - printk(KERN_ERR "unable to create %s proc entry\n", - UV_PTC_BASENAME); - return -EINVAL; - } - - tunables_dir = debugfs_create_dir(UV_BAU_TUNABLES_DIR, NULL); - if (!tunables_dir) { - printk(KERN_ERR "unable to create debugfs directory %s\n", - UV_BAU_TUNABLES_DIR); - return -EINVAL; - } - tunables_file = debugfs_create_file(UV_BAU_TUNABLES_FILE, 0600, - tunables_dir, NULL, &tunables_fops); - if (!tunables_file) { - printk(KERN_ERR "unable to create debugfs file %s\n", - UV_BAU_TUNABLES_FILE); - return -EINVAL; - } - return 0; -} - -/* - * Initialize the sending side's sending buffers. - */ -static void activation_descriptor_init(int node, int pnode, int base_pnode) -{ - int i; - int cpu; - int uv1 = 0; - unsigned long gpa; - unsigned long m; - unsigned long n; - size_t dsize; - struct bau_desc *bau_desc; - struct bau_desc *bd2; - struct uv1_bau_msg_header *uv1_hdr; - struct uv2_bau_msg_header *uv2_hdr; - struct bau_control *bcp; - - /* - * each bau_desc is 64 bytes; there are 8 (ITEMS_PER_DESC) - * per cpu; and one per cpu on the uvhub (ADP_SZ) - */ - dsize = sizeof(struct bau_desc) * ADP_SZ * ITEMS_PER_DESC; - bau_desc = kmalloc_node(dsize, GFP_KERNEL, node); - BUG_ON(!bau_desc); - - gpa = uv_gpa(bau_desc); - n = uv_gpa_to_gnode(gpa); - m = uv_gpa_to_offset(gpa); - if (is_uv1_hub()) - uv1 = 1; - - /* the 14-bit pnode */ - write_mmr_descriptor_base(pnode, (n << UV_DESC_PSHIFT | m)); - /* - * Initializing all 8 (ITEMS_PER_DESC) descriptors for each - * cpu even though we only use the first one; one descriptor can - * describe a broadcast to 256 uv hubs. - */ - for (i = 0, bd2 = bau_desc; i < (ADP_SZ * ITEMS_PER_DESC); i++, bd2++) { - memset(bd2, 0, sizeof(struct bau_desc)); - if (uv1) { - uv1_hdr = &bd2->header.uv1_hdr; - uv1_hdr->swack_flag = 1; - /* - * The base_dest_nasid set in the message header - * is the nasid of the first uvhub in the partition. - * The bit map will indicate destination pnode numbers - * relative to that base. They may not be consecutive - * if nasid striding is being used. - */ - uv1_hdr->base_dest_nasid = - UV_PNODE_TO_NASID(base_pnode); - uv1_hdr->dest_subnodeid = UV_LB_SUBNODEID; - uv1_hdr->command = UV_NET_ENDPOINT_INTD; - uv1_hdr->int_both = 1; - /* - * all others need to be set to zero: - * fairness chaining multilevel count replied_to - */ - } else { - uv2_hdr = &bd2->header.uv2_hdr; - uv2_hdr->swack_flag = 1; - uv2_hdr->base_dest_nasid = - UV_PNODE_TO_NASID(base_pnode); - uv2_hdr->dest_subnodeid = UV_LB_SUBNODEID; - uv2_hdr->command = UV_NET_ENDPOINT_INTD; - } - } - for_each_present_cpu(cpu) { - if (pnode != uv_blade_to_pnode(uv_cpu_to_blade_id(cpu))) - continue; - bcp = &per_cpu(bau_control, cpu); - bcp->descriptor_base = bau_desc; - } -} - -/* - * initialize the destination side's receiving buffers - * entered for each uvhub in the partition - * - node is first node (kernel memory notion) on the uvhub - * - pnode is the uvhub's physical identifier - */ -static void pq_init(int node, int pnode) -{ - int cpu; - size_t plsize; - char *cp; - void *vp; - unsigned long pn; - unsigned long first; - unsigned long pn_first; - unsigned long last; - struct bau_pq_entry *pqp; - struct bau_control *bcp; - - plsize = (DEST_Q_SIZE + 1) * sizeof(struct bau_pq_entry); - vp = kmalloc_node(plsize, GFP_KERNEL, node); - pqp = (struct bau_pq_entry *)vp; - BUG_ON(!pqp); - - cp = (char *)pqp + 31; - pqp = (struct bau_pq_entry *)(((unsigned long)cp >> 5) << 5); - - for_each_present_cpu(cpu) { - if (pnode != uv_cpu_to_pnode(cpu)) - continue; - /* for every cpu on this pnode: */ - bcp = &per_cpu(bau_control, cpu); - bcp->queue_first = pqp; - bcp->bau_msg_head = pqp; - bcp->queue_last = pqp + (DEST_Q_SIZE - 1); - } - /* - * need the gnode of where the memory was really allocated - */ - pn = uv_gpa_to_gnode(uv_gpa(pqp)); - first = uv_physnodeaddr(pqp); - pn_first = ((unsigned long)pn << UV_PAYLOADQ_PNODE_SHIFT) | first; - last = uv_physnodeaddr(pqp + (DEST_Q_SIZE - 1)); - write_mmr_payload_first(pnode, pn_first); - write_mmr_payload_tail(pnode, first); - write_mmr_payload_last(pnode, last); - write_gmmr_sw_ack(pnode, 0xffffUL); - - /* in effect, all msg_type's are set to MSG_NOOP */ - memset(pqp, 0, sizeof(struct bau_pq_entry) * DEST_Q_SIZE); -} - -/* - * Initialization of each UV hub's structures - */ -static void __init init_uvhub(int uvhub, int vector, int base_pnode) -{ - int node; - int pnode; - unsigned long apicid; - - node = uvhub_to_first_node(uvhub); - pnode = uv_blade_to_pnode(uvhub); - - activation_descriptor_init(node, pnode, base_pnode); - - pq_init(node, pnode); - /* - * The below initialization can't be in firmware because the - * messaging IRQ will be determined by the OS. - */ - apicid = uvhub_to_first_apicid(uvhub) | uv_apicid_hibits; - write_mmr_data_config(pnode, ((apicid << 32) | vector)); -} - -/* - * We will set BAU_MISC_CONTROL with a timeout period. - * But the BIOS has set UVH_AGING_PRESCALE_SEL and UVH_TRANSACTION_TIMEOUT. - * So the destination timeout period has to be calculated from them. - */ -static int calculate_destination_timeout(void) -{ - unsigned long mmr_image; - int mult1; - int mult2; - int index; - int base; - int ret; - unsigned long ts_ns; - - if (is_uv1_hub()) { - mult1 = SOFTACK_TIMEOUT_PERIOD & BAU_MISC_CONTROL_MULT_MASK; - mmr_image = uv_read_local_mmr(UVH_AGING_PRESCALE_SEL); - index = (mmr_image >> BAU_URGENCY_7_SHIFT) & BAU_URGENCY_7_MASK; - mmr_image = uv_read_local_mmr(UVH_TRANSACTION_TIMEOUT); - mult2 = (mmr_image >> BAU_TRANS_SHIFT) & BAU_TRANS_MASK; - base = timeout_base_ns[index]; - ts_ns = base * mult1 * mult2; - ret = ts_ns / 1000; - } else { - /* 4 bits 0/1 for 10/80us base, 3 bits of multiplier */ - mmr_image = uv_read_local_mmr(UVH_LB_BAU_MISC_CONTROL); - mmr_image = (mmr_image & UV_SA_MASK) >> UV_SA_SHFT; - if (mmr_image & (1L << UV2_ACK_UNITS_SHFT)) - base = 80; - else - base = 10; - mult1 = mmr_image & UV2_ACK_MASK; - ret = mult1 * base; - } - return ret; -} - -static void __init init_per_cpu_tunables(void) -{ - int cpu; - struct bau_control *bcp; - - for_each_present_cpu(cpu) { - bcp = &per_cpu(bau_control, cpu); - bcp->baudisabled = 0; - bcp->statp = &per_cpu(ptcstats, cpu); - /* time interval to catch a hardware stay-busy bug */ - bcp->timeout_interval = usec_2_cycles(2*timeout_us); - bcp->max_concurr = max_concurr; - bcp->max_concurr_const = max_concurr; - bcp->plugged_delay = plugged_delay; - bcp->plugsb4reset = plugsb4reset; - bcp->timeoutsb4reset = timeoutsb4reset; - bcp->ipi_reset_limit = ipi_reset_limit; - bcp->complete_threshold = complete_threshold; - bcp->cong_response_us = congested_respns_us; - bcp->cong_reps = congested_reps; - bcp->cong_period = congested_period; - bcp->clocks_per_100_usec = usec_2_cycles(100); - spin_lock_init(&bcp->queue_lock); - spin_lock_init(&bcp->uvhub_lock); - } -} - -/* - * Scan all cpus to collect blade and socket summaries. - */ -static int __init get_cpu_topology(int base_pnode, - struct uvhub_desc *uvhub_descs, - unsigned char *uvhub_mask) -{ - int cpu; - int pnode; - int uvhub; - int socket; - struct bau_control *bcp; - struct uvhub_desc *bdp; - struct socket_desc *sdp; - - for_each_present_cpu(cpu) { - bcp = &per_cpu(bau_control, cpu); - - memset(bcp, 0, sizeof(struct bau_control)); - - pnode = uv_cpu_hub_info(cpu)->pnode; - if ((pnode - base_pnode) >= UV_DISTRIBUTION_SIZE) { - printk(KERN_EMERG - "cpu %d pnode %d-%d beyond %d; BAU disabled\n", - cpu, pnode, base_pnode, UV_DISTRIBUTION_SIZE); - return 1; - } - - bcp->osnode = cpu_to_node(cpu); - bcp->partition_base_pnode = base_pnode; - - uvhub = uv_cpu_hub_info(cpu)->numa_blade_id; - *(uvhub_mask + (uvhub/8)) |= (1 << (uvhub%8)); - bdp = &uvhub_descs[uvhub]; - - bdp->num_cpus++; - bdp->uvhub = uvhub; - bdp->pnode = pnode; - - /* kludge: 'assuming' one node per socket, and assuming that - disabling a socket just leaves a gap in node numbers */ - socket = bcp->osnode & 1; - bdp->socket_mask |= (1 << socket); - sdp = &bdp->socket[socket]; - sdp->cpu_number[sdp->num_cpus] = cpu; - sdp->num_cpus++; - if (sdp->num_cpus > MAX_CPUS_PER_SOCKET) { - printk(KERN_EMERG "%d cpus per socket invalid\n", - sdp->num_cpus); - return 1; - } - } - return 0; -} - -/* - * Each socket is to get a local array of pnodes/hubs. - */ -static void make_per_cpu_thp(struct bau_control *smaster) -{ - int cpu; - size_t hpsz = sizeof(struct hub_and_pnode) * num_possible_cpus(); - - smaster->thp = kmalloc_node(hpsz, GFP_KERNEL, smaster->osnode); - memset(smaster->thp, 0, hpsz); - for_each_present_cpu(cpu) { - smaster->thp[cpu].pnode = uv_cpu_hub_info(cpu)->pnode; - smaster->thp[cpu].uvhub = uv_cpu_hub_info(cpu)->numa_blade_id; - } -} - -/* - * Each uvhub is to get a local cpumask. - */ -static void make_per_hub_cpumask(struct bau_control *hmaster) -{ - int sz = sizeof(cpumask_t); - - hmaster->cpumask = kzalloc_node(sz, GFP_KERNEL, hmaster->osnode); -} - -/* - * Initialize all the per_cpu information for the cpu's on a given socket, - * given what has been gathered into the socket_desc struct. - * And reports the chosen hub and socket masters back to the caller. - */ -static int scan_sock(struct socket_desc *sdp, struct uvhub_desc *bdp, - struct bau_control **smasterp, - struct bau_control **hmasterp) -{ - int i; - int cpu; - struct bau_control *bcp; - - for (i = 0; i < sdp->num_cpus; i++) { - cpu = sdp->cpu_number[i]; - bcp = &per_cpu(bau_control, cpu); - bcp->cpu = cpu; - if (i == 0) { - *smasterp = bcp; - if (!(*hmasterp)) - *hmasterp = bcp; - } - bcp->cpus_in_uvhub = bdp->num_cpus; - bcp->cpus_in_socket = sdp->num_cpus; - bcp->socket_master = *smasterp; - bcp->uvhub = bdp->uvhub; - if (is_uv1_hub()) - bcp->uvhub_version = 1; - else if (is_uv2_hub()) - bcp->uvhub_version = 2; - else { - printk(KERN_EMERG "uvhub version not 1 or 2\n"); - return 1; - } - bcp->uvhub_master = *hmasterp; - bcp->uvhub_cpu = uv_cpu_hub_info(cpu)->blade_processor_id; - bcp->using_desc = bcp->uvhub_cpu; - if (bcp->uvhub_cpu >= MAX_CPUS_PER_UVHUB) { - printk(KERN_EMERG "%d cpus per uvhub invalid\n", - bcp->uvhub_cpu); - return 1; - } - } - return 0; -} - -/* - * Summarize the blade and socket topology into the per_cpu structures. - */ -static int __init summarize_uvhub_sockets(int nuvhubs, - struct uvhub_desc *uvhub_descs, - unsigned char *uvhub_mask) -{ - int socket; - int uvhub; - unsigned short socket_mask; - - for (uvhub = 0; uvhub < nuvhubs; uvhub++) { - struct uvhub_desc *bdp; - struct bau_control *smaster = NULL; - struct bau_control *hmaster = NULL; - - if (!(*(uvhub_mask + (uvhub/8)) & (1 << (uvhub%8)))) - continue; - - bdp = &uvhub_descs[uvhub]; - socket_mask = bdp->socket_mask; - socket = 0; - while (socket_mask) { - struct socket_desc *sdp; - if ((socket_mask & 1)) { - sdp = &bdp->socket[socket]; - if (scan_sock(sdp, bdp, &smaster, &hmaster)) - return 1; - make_per_cpu_thp(smaster); - } - socket++; - socket_mask = (socket_mask >> 1); - } - make_per_hub_cpumask(hmaster); - } - return 0; -} - -/* - * initialize the bau_control structure for each cpu - */ -static int __init init_per_cpu(int nuvhubs, int base_part_pnode) -{ - unsigned char *uvhub_mask; - void *vp; - struct uvhub_desc *uvhub_descs; - - timeout_us = calculate_destination_timeout(); - - vp = kmalloc(nuvhubs * sizeof(struct uvhub_desc), GFP_KERNEL); - uvhub_descs = (struct uvhub_desc *)vp; - memset(uvhub_descs, 0, nuvhubs * sizeof(struct uvhub_desc)); - uvhub_mask = kzalloc((nuvhubs+7)/8, GFP_KERNEL); - - if (get_cpu_topology(base_part_pnode, uvhub_descs, uvhub_mask)) - goto fail; - - if (summarize_uvhub_sockets(nuvhubs, uvhub_descs, uvhub_mask)) - goto fail; - - kfree(uvhub_descs); - kfree(uvhub_mask); - init_per_cpu_tunables(); - return 0; - -fail: - kfree(uvhub_descs); - kfree(uvhub_mask); - return 1; -} - -/* - * Initialization of BAU-related structures - */ -static int __init uv_bau_init(void) -{ - int uvhub; - int pnode; - int nuvhubs; - int cur_cpu; - int cpus; - int vector; - cpumask_var_t *mask; - - if (!is_uv_system()) - return 0; - - if (nobau) - return 0; - - for_each_possible_cpu(cur_cpu) { - mask = &per_cpu(uv_flush_tlb_mask, cur_cpu); - zalloc_cpumask_var_node(mask, GFP_KERNEL, cpu_to_node(cur_cpu)); - } - - nuvhubs = uv_num_possible_blades(); - spin_lock_init(&disable_lock); - congested_cycles = usec_2_cycles(congested_respns_us); - - uv_base_pnode = 0x7fffffff; - for (uvhub = 0; uvhub < nuvhubs; uvhub++) { - cpus = uv_blade_nr_possible_cpus(uvhub); - if (cpus && (uv_blade_to_pnode(uvhub) < uv_base_pnode)) - uv_base_pnode = uv_blade_to_pnode(uvhub); - } - - enable_timeouts(); - - if (init_per_cpu(nuvhubs, uv_base_pnode)) { - nobau = 1; - return 0; - } - - vector = UV_BAU_MESSAGE; - for_each_possible_blade(uvhub) - if (uv_blade_nr_possible_cpus(uvhub)) - init_uvhub(uvhub, vector, uv_base_pnode); - - alloc_intr_gate(vector, uv_bau_message_intr1); - - for_each_possible_blade(uvhub) { - if (uv_blade_nr_possible_cpus(uvhub)) { - unsigned long val; - unsigned long mmr; - pnode = uv_blade_to_pnode(uvhub); - /* INIT the bau */ - val = 1L << 63; - write_gmmr_activation(pnode, val); - mmr = 1; /* should be 1 to broadcast to both sockets */ - if (!is_uv1_hub()) - write_mmr_data_broadcast(pnode, mmr); - } - } - - return 0; -} -core_initcall(uv_bau_init); -fs_initcall(uv_ptc_init); diff --git a/ANDROID_3.4.5/arch/x86/platform/uv/uv_irq.c b/ANDROID_3.4.5/arch/x86/platform/uv/uv_irq.c deleted file mode 100644 index f25c2765..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/uv/uv_irq.c +++ /dev/null @@ -1,285 +0,0 @@ -/* - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * - * SGI UV IRQ functions - * - * Copyright (C) 2008 Silicon Graphics, Inc. All rights reserved. - */ - -#include <linux/module.h> -#include <linux/rbtree.h> -#include <linux/slab.h> -#include <linux/irq.h> - -#include <asm/apic.h> -#include <asm/uv/uv_irq.h> -#include <asm/uv/uv_hub.h> - -/* MMR offset and pnode of hub sourcing interrupts for a given irq */ -struct uv_irq_2_mmr_pnode{ - struct rb_node list; - unsigned long offset; - int pnode; - int irq; -}; - -static DEFINE_SPINLOCK(uv_irq_lock); -static struct rb_root uv_irq_root; - -static int uv_set_irq_affinity(struct irq_data *, const struct cpumask *, bool); - -static void uv_noop(struct irq_data *data) { } - -static void uv_ack_apic(struct irq_data *data) -{ - ack_APIC_irq(); -} - -static struct irq_chip uv_irq_chip = { - .name = "UV-CORE", - .irq_mask = uv_noop, - .irq_unmask = uv_noop, - .irq_eoi = uv_ack_apic, - .irq_set_affinity = uv_set_irq_affinity, -}; - -/* - * Add offset and pnode information of the hub sourcing interrupts to the - * rb tree for a specific irq. - */ -static int uv_set_irq_2_mmr_info(int irq, unsigned long offset, unsigned blade) -{ - struct rb_node **link = &uv_irq_root.rb_node; - struct rb_node *parent = NULL; - struct uv_irq_2_mmr_pnode *n; - struct uv_irq_2_mmr_pnode *e; - unsigned long irqflags; - - n = kmalloc_node(sizeof(struct uv_irq_2_mmr_pnode), GFP_KERNEL, - uv_blade_to_memory_nid(blade)); - if (!n) - return -ENOMEM; - - n->irq = irq; - n->offset = offset; - n->pnode = uv_blade_to_pnode(blade); - spin_lock_irqsave(&uv_irq_lock, irqflags); - /* Find the right place in the rbtree: */ - while (*link) { - parent = *link; - e = rb_entry(parent, struct uv_irq_2_mmr_pnode, list); - - if (unlikely(irq == e->irq)) { - /* irq entry exists */ - e->pnode = uv_blade_to_pnode(blade); - e->offset = offset; - spin_unlock_irqrestore(&uv_irq_lock, irqflags); - kfree(n); - return 0; - } - - if (irq < e->irq) - link = &(*link)->rb_left; - else - link = &(*link)->rb_right; - } - - /* Insert the node into the rbtree. */ - rb_link_node(&n->list, parent, link); - rb_insert_color(&n->list, &uv_irq_root); - - spin_unlock_irqrestore(&uv_irq_lock, irqflags); - return 0; -} - -/* Retrieve offset and pnode information from the rb tree for a specific irq */ -int uv_irq_2_mmr_info(int irq, unsigned long *offset, int *pnode) -{ - struct uv_irq_2_mmr_pnode *e; - struct rb_node *n; - unsigned long irqflags; - - spin_lock_irqsave(&uv_irq_lock, irqflags); - n = uv_irq_root.rb_node; - while (n) { - e = rb_entry(n, struct uv_irq_2_mmr_pnode, list); - - if (e->irq == irq) { - *offset = e->offset; - *pnode = e->pnode; - spin_unlock_irqrestore(&uv_irq_lock, irqflags); - return 0; - } - - if (irq < e->irq) - n = n->rb_left; - else - n = n->rb_right; - } - spin_unlock_irqrestore(&uv_irq_lock, irqflags); - return -1; -} - -/* - * Re-target the irq to the specified CPU and enable the specified MMR located - * on the specified blade to allow the sending of MSIs to the specified CPU. - */ -static int -arch_enable_uv_irq(char *irq_name, unsigned int irq, int cpu, int mmr_blade, - unsigned long mmr_offset, int limit) -{ - const struct cpumask *eligible_cpu = cpumask_of(cpu); - struct irq_cfg *cfg = irq_get_chip_data(irq); - unsigned long mmr_value; - struct uv_IO_APIC_route_entry *entry; - int mmr_pnode, err; - - BUILD_BUG_ON(sizeof(struct uv_IO_APIC_route_entry) != - sizeof(unsigned long)); - - err = assign_irq_vector(irq, cfg, eligible_cpu); - if (err != 0) - return err; - - if (limit == UV_AFFINITY_CPU) - irq_set_status_flags(irq, IRQ_NO_BALANCING); - else - irq_set_status_flags(irq, IRQ_MOVE_PCNTXT); - - irq_set_chip_and_handler_name(irq, &uv_irq_chip, handle_percpu_irq, - irq_name); - - mmr_value = 0; - entry = (struct uv_IO_APIC_route_entry *)&mmr_value; - entry->vector = cfg->vector; - entry->delivery_mode = apic->irq_delivery_mode; - entry->dest_mode = apic->irq_dest_mode; - entry->polarity = 0; - entry->trigger = 0; - entry->mask = 0; - entry->dest = apic->cpu_mask_to_apicid(eligible_cpu); - - mmr_pnode = uv_blade_to_pnode(mmr_blade); - uv_write_global_mmr64(mmr_pnode, mmr_offset, mmr_value); - - if (cfg->move_in_progress) - send_cleanup_vector(cfg); - - return irq; -} - -/* - * Disable the specified MMR located on the specified blade so that MSIs are - * longer allowed to be sent. - */ -static void arch_disable_uv_irq(int mmr_pnode, unsigned long mmr_offset) -{ - unsigned long mmr_value; - struct uv_IO_APIC_route_entry *entry; - - BUILD_BUG_ON(sizeof(struct uv_IO_APIC_route_entry) != - sizeof(unsigned long)); - - mmr_value = 0; - entry = (struct uv_IO_APIC_route_entry *)&mmr_value; - entry->mask = 1; - - uv_write_global_mmr64(mmr_pnode, mmr_offset, mmr_value); -} - -static int -uv_set_irq_affinity(struct irq_data *data, const struct cpumask *mask, - bool force) -{ - struct irq_cfg *cfg = data->chip_data; - unsigned int dest; - unsigned long mmr_value, mmr_offset; - struct uv_IO_APIC_route_entry *entry; - int mmr_pnode; - - if (__ioapic_set_affinity(data, mask, &dest)) - return -1; - - mmr_value = 0; - entry = (struct uv_IO_APIC_route_entry *)&mmr_value; - - entry->vector = cfg->vector; - entry->delivery_mode = apic->irq_delivery_mode; - entry->dest_mode = apic->irq_dest_mode; - entry->polarity = 0; - entry->trigger = 0; - entry->mask = 0; - entry->dest = dest; - - /* Get previously stored MMR and pnode of hub sourcing interrupts */ - if (uv_irq_2_mmr_info(data->irq, &mmr_offset, &mmr_pnode)) - return -1; - - uv_write_global_mmr64(mmr_pnode, mmr_offset, mmr_value); - - if (cfg->move_in_progress) - send_cleanup_vector(cfg); - - return 0; -} - -/* - * Set up a mapping of an available irq and vector, and enable the specified - * MMR that defines the MSI that is to be sent to the specified CPU when an - * interrupt is raised. - */ -int uv_setup_irq(char *irq_name, int cpu, int mmr_blade, - unsigned long mmr_offset, int limit) -{ - int irq, ret; - - irq = create_irq_nr(NR_IRQS_LEGACY, uv_blade_to_memory_nid(mmr_blade)); - - if (irq <= 0) - return -EBUSY; - - ret = arch_enable_uv_irq(irq_name, irq, cpu, mmr_blade, mmr_offset, - limit); - if (ret == irq) - uv_set_irq_2_mmr_info(irq, mmr_offset, mmr_blade); - else - destroy_irq(irq); - - return ret; -} -EXPORT_SYMBOL_GPL(uv_setup_irq); - -/* - * Tear down a mapping of an irq and vector, and disable the specified MMR that - * defined the MSI that was to be sent to the specified CPU when an interrupt - * was raised. - * - * Set mmr_blade and mmr_offset to what was passed in on uv_setup_irq(). - */ -void uv_teardown_irq(unsigned int irq) -{ - struct uv_irq_2_mmr_pnode *e; - struct rb_node *n; - unsigned long irqflags; - - spin_lock_irqsave(&uv_irq_lock, irqflags); - n = uv_irq_root.rb_node; - while (n) { - e = rb_entry(n, struct uv_irq_2_mmr_pnode, list); - if (e->irq == irq) { - arch_disable_uv_irq(e->pnode, e->offset); - rb_erase(n, &uv_irq_root); - kfree(e); - break; - } - if (irq < e->irq) - n = n->rb_left; - else - n = n->rb_right; - } - spin_unlock_irqrestore(&uv_irq_lock, irqflags); - destroy_irq(irq); -} -EXPORT_SYMBOL_GPL(uv_teardown_irq); diff --git a/ANDROID_3.4.5/arch/x86/platform/uv/uv_sysfs.c b/ANDROID_3.4.5/arch/x86/platform/uv/uv_sysfs.c deleted file mode 100644 index 5d4ba301..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/uv/uv_sysfs.c +++ /dev/null @@ -1,76 +0,0 @@ -/* - * This file supports the /sys/firmware/sgi_uv interfaces for SGI UV. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Copyright (c) 2008 Silicon Graphics, Inc. All Rights Reserved. - * Copyright (c) Russ Anderson - */ - -#include <linux/device.h> -#include <asm/uv/bios.h> -#include <asm/uv/uv.h> - -struct kobject *sgi_uv_kobj; - -static ssize_t partition_id_show(struct kobject *kobj, - struct kobj_attribute *attr, char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%ld\n", sn_partition_id); -} - -static ssize_t coherence_id_show(struct kobject *kobj, - struct kobj_attribute *attr, char *buf) -{ - return snprintf(buf, PAGE_SIZE, "%ld\n", partition_coherence_id()); -} - -static struct kobj_attribute partition_id_attr = - __ATTR(partition_id, S_IRUGO, partition_id_show, NULL); - -static struct kobj_attribute coherence_id_attr = - __ATTR(coherence_id, S_IRUGO, coherence_id_show, NULL); - - -static int __init sgi_uv_sysfs_init(void) -{ - unsigned long ret; - - if (!is_uv_system()) - return -ENODEV; - - if (!sgi_uv_kobj) - sgi_uv_kobj = kobject_create_and_add("sgi_uv", firmware_kobj); - if (!sgi_uv_kobj) { - printk(KERN_WARNING "kobject_create_and_add sgi_uv failed\n"); - return -EINVAL; - } - - ret = sysfs_create_file(sgi_uv_kobj, &partition_id_attr.attr); - if (ret) { - printk(KERN_WARNING "sysfs_create_file partition_id failed\n"); - return ret; - } - - ret = sysfs_create_file(sgi_uv_kobj, &coherence_id_attr.attr); - if (ret) { - printk(KERN_WARNING "sysfs_create_file coherence_id failed\n"); - return ret; - } - - return 0; -} - -device_initcall(sgi_uv_sysfs_init); diff --git a/ANDROID_3.4.5/arch/x86/platform/uv/uv_time.c b/ANDROID_3.4.5/arch/x86/platform/uv/uv_time.c deleted file mode 100644 index 5032e0d1..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/uv/uv_time.c +++ /dev/null @@ -1,425 +0,0 @@ -/* - * SGI RTC clock/timer routines. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - * - * Copyright (c) 2009 Silicon Graphics, Inc. All Rights Reserved. - * Copyright (c) Dimitri Sivanich - */ -#include <linux/clockchips.h> -#include <linux/slab.h> - -#include <asm/uv/uv_mmrs.h> -#include <asm/uv/uv_hub.h> -#include <asm/uv/bios.h> -#include <asm/uv/uv.h> -#include <asm/apic.h> -#include <asm/cpu.h> - -#define RTC_NAME "sgi_rtc" - -static cycle_t uv_read_rtc(struct clocksource *cs); -static int uv_rtc_next_event(unsigned long, struct clock_event_device *); -static void uv_rtc_timer_setup(enum clock_event_mode, - struct clock_event_device *); - -static struct clocksource clocksource_uv = { - .name = RTC_NAME, - .rating = 299, - .read = uv_read_rtc, - .mask = (cycle_t)UVH_RTC_REAL_TIME_CLOCK_MASK, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, -}; - -static struct clock_event_device clock_event_device_uv = { - .name = RTC_NAME, - .features = CLOCK_EVT_FEAT_ONESHOT, - .shift = 20, - .rating = 400, - .irq = -1, - .set_next_event = uv_rtc_next_event, - .set_mode = uv_rtc_timer_setup, - .event_handler = NULL, -}; - -static DEFINE_PER_CPU(struct clock_event_device, cpu_ced); - -/* There is one of these allocated per node */ -struct uv_rtc_timer_head { - spinlock_t lock; - /* next cpu waiting for timer, local node relative: */ - int next_cpu; - /* number of cpus on this node: */ - int ncpus; - struct { - int lcpu; /* systemwide logical cpu number */ - u64 expires; /* next timer expiration for this cpu */ - } cpu[1]; -}; - -/* - * Access to uv_rtc_timer_head via blade id. - */ -static struct uv_rtc_timer_head **blade_info __read_mostly; - -static int uv_rtc_evt_enable; - -/* - * Hardware interface routines - */ - -/* Send IPIs to another node */ -static void uv_rtc_send_IPI(int cpu) -{ - unsigned long apicid, val; - int pnode; - - apicid = cpu_physical_id(cpu); - pnode = uv_apicid_to_pnode(apicid); - apicid |= uv_apicid_hibits; - val = (1UL << UVH_IPI_INT_SEND_SHFT) | - (apicid << UVH_IPI_INT_APIC_ID_SHFT) | - (X86_PLATFORM_IPI_VECTOR << UVH_IPI_INT_VECTOR_SHFT); - - uv_write_global_mmr64(pnode, UVH_IPI_INT, val); -} - -/* Check for an RTC interrupt pending */ -static int uv_intr_pending(int pnode) -{ - if (is_uv1_hub()) - return uv_read_global_mmr64(pnode, UVH_EVENT_OCCURRED0) & - UV1H_EVENT_OCCURRED0_RTC1_MASK; - else - return uv_read_global_mmr64(pnode, UV2H_EVENT_OCCURRED2) & - UV2H_EVENT_OCCURRED2_RTC_1_MASK; -} - -/* Setup interrupt and return non-zero if early expiration occurred. */ -static int uv_setup_intr(int cpu, u64 expires) -{ - u64 val; - unsigned long apicid = cpu_physical_id(cpu) | uv_apicid_hibits; - int pnode = uv_cpu_to_pnode(cpu); - - uv_write_global_mmr64(pnode, UVH_RTC1_INT_CONFIG, - UVH_RTC1_INT_CONFIG_M_MASK); - uv_write_global_mmr64(pnode, UVH_INT_CMPB, -1L); - - if (is_uv1_hub()) - uv_write_global_mmr64(pnode, UVH_EVENT_OCCURRED0_ALIAS, - UV1H_EVENT_OCCURRED0_RTC1_MASK); - else - uv_write_global_mmr64(pnode, UV2H_EVENT_OCCURRED2_ALIAS, - UV2H_EVENT_OCCURRED2_RTC_1_MASK); - - val = (X86_PLATFORM_IPI_VECTOR << UVH_RTC1_INT_CONFIG_VECTOR_SHFT) | - ((u64)apicid << UVH_RTC1_INT_CONFIG_APIC_ID_SHFT); - - /* Set configuration */ - uv_write_global_mmr64(pnode, UVH_RTC1_INT_CONFIG, val); - /* Initialize comparator value */ - uv_write_global_mmr64(pnode, UVH_INT_CMPB, expires); - - if (uv_read_rtc(NULL) <= expires) - return 0; - - return !uv_intr_pending(pnode); -} - -/* - * Per-cpu timer tracking routines - */ - -static __init void uv_rtc_deallocate_timers(void) -{ - int bid; - - for_each_possible_blade(bid) { - kfree(blade_info[bid]); - } - kfree(blade_info); -} - -/* Allocate per-node list of cpu timer expiration times. */ -static __init int uv_rtc_allocate_timers(void) -{ - int cpu; - - blade_info = kmalloc(uv_possible_blades * sizeof(void *), GFP_KERNEL); - if (!blade_info) - return -ENOMEM; - memset(blade_info, 0, uv_possible_blades * sizeof(void *)); - - for_each_present_cpu(cpu) { - int nid = cpu_to_node(cpu); - int bid = uv_cpu_to_blade_id(cpu); - int bcpu = uv_cpu_hub_info(cpu)->blade_processor_id; - struct uv_rtc_timer_head *head = blade_info[bid]; - - if (!head) { - head = kmalloc_node(sizeof(struct uv_rtc_timer_head) + - (uv_blade_nr_possible_cpus(bid) * - 2 * sizeof(u64)), - GFP_KERNEL, nid); - if (!head) { - uv_rtc_deallocate_timers(); - return -ENOMEM; - } - spin_lock_init(&head->lock); - head->ncpus = uv_blade_nr_possible_cpus(bid); - head->next_cpu = -1; - blade_info[bid] = head; - } - - head->cpu[bcpu].lcpu = cpu; - head->cpu[bcpu].expires = ULLONG_MAX; - } - - return 0; -} - -/* Find and set the next expiring timer. */ -static void uv_rtc_find_next_timer(struct uv_rtc_timer_head *head, int pnode) -{ - u64 lowest = ULLONG_MAX; - int c, bcpu = -1; - - head->next_cpu = -1; - for (c = 0; c < head->ncpus; c++) { - u64 exp = head->cpu[c].expires; - if (exp < lowest) { - bcpu = c; - lowest = exp; - } - } - if (bcpu >= 0) { - head->next_cpu = bcpu; - c = head->cpu[bcpu].lcpu; - if (uv_setup_intr(c, lowest)) - /* If we didn't set it up in time, trigger */ - uv_rtc_send_IPI(c); - } else { - uv_write_global_mmr64(pnode, UVH_RTC1_INT_CONFIG, - UVH_RTC1_INT_CONFIG_M_MASK); - } -} - -/* - * Set expiration time for current cpu. - * - * Returns 1 if we missed the expiration time. - */ -static int uv_rtc_set_timer(int cpu, u64 expires) -{ - int pnode = uv_cpu_to_pnode(cpu); - int bid = uv_cpu_to_blade_id(cpu); - struct uv_rtc_timer_head *head = blade_info[bid]; - int bcpu = uv_cpu_hub_info(cpu)->blade_processor_id; - u64 *t = &head->cpu[bcpu].expires; - unsigned long flags; - int next_cpu; - - spin_lock_irqsave(&head->lock, flags); - - next_cpu = head->next_cpu; - *t = expires; - - /* Will this one be next to go off? */ - if (next_cpu < 0 || bcpu == next_cpu || - expires < head->cpu[next_cpu].expires) { - head->next_cpu = bcpu; - if (uv_setup_intr(cpu, expires)) { - *t = ULLONG_MAX; - uv_rtc_find_next_timer(head, pnode); - spin_unlock_irqrestore(&head->lock, flags); - return -ETIME; - } - } - - spin_unlock_irqrestore(&head->lock, flags); - return 0; -} - -/* - * Unset expiration time for current cpu. - * - * Returns 1 if this timer was pending. - */ -static int uv_rtc_unset_timer(int cpu, int force) -{ - int pnode = uv_cpu_to_pnode(cpu); - int bid = uv_cpu_to_blade_id(cpu); - struct uv_rtc_timer_head *head = blade_info[bid]; - int bcpu = uv_cpu_hub_info(cpu)->blade_processor_id; - u64 *t = &head->cpu[bcpu].expires; - unsigned long flags; - int rc = 0; - - spin_lock_irqsave(&head->lock, flags); - - if ((head->next_cpu == bcpu && uv_read_rtc(NULL) >= *t) || force) - rc = 1; - - if (rc) { - *t = ULLONG_MAX; - /* Was the hardware setup for this timer? */ - if (head->next_cpu == bcpu) - uv_rtc_find_next_timer(head, pnode); - } - - spin_unlock_irqrestore(&head->lock, flags); - - return rc; -} - - -/* - * Kernel interface routines. - */ - -/* - * Read the RTC. - * - * Starting with HUB rev 2.0, the UV RTC register is replicated across all - * cachelines of it's own page. This allows faster simultaneous reads - * from a given socket. - */ -static cycle_t uv_read_rtc(struct clocksource *cs) -{ - unsigned long offset; - - if (uv_get_min_hub_revision_id() == 1) - offset = 0; - else - offset = (uv_blade_processor_id() * L1_CACHE_BYTES) % PAGE_SIZE; - - return (cycle_t)uv_read_local_mmr(UVH_RTC | offset); -} - -/* - * Program the next event, relative to now - */ -static int uv_rtc_next_event(unsigned long delta, - struct clock_event_device *ced) -{ - int ced_cpu = cpumask_first(ced->cpumask); - - return uv_rtc_set_timer(ced_cpu, delta + uv_read_rtc(NULL)); -} - -/* - * Setup the RTC timer in oneshot mode - */ -static void uv_rtc_timer_setup(enum clock_event_mode mode, - struct clock_event_device *evt) -{ - int ced_cpu = cpumask_first(evt->cpumask); - - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - case CLOCK_EVT_MODE_ONESHOT: - case CLOCK_EVT_MODE_RESUME: - /* Nothing to do here yet */ - break; - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - uv_rtc_unset_timer(ced_cpu, 1); - break; - } -} - -static void uv_rtc_interrupt(void) -{ - int cpu = smp_processor_id(); - struct clock_event_device *ced = &per_cpu(cpu_ced, cpu); - - if (!ced || !ced->event_handler) - return; - - if (uv_rtc_unset_timer(cpu, 0) != 1) - return; - - ced->event_handler(ced); -} - -static int __init uv_enable_evt_rtc(char *str) -{ - uv_rtc_evt_enable = 1; - - return 1; -} -__setup("uvrtcevt", uv_enable_evt_rtc); - -static __init void uv_rtc_register_clockevents(struct work_struct *dummy) -{ - struct clock_event_device *ced = &__get_cpu_var(cpu_ced); - - *ced = clock_event_device_uv; - ced->cpumask = cpumask_of(smp_processor_id()); - clockevents_register_device(ced); -} - -static __init int uv_rtc_setup_clock(void) -{ - int rc; - - if (!is_uv_system()) - return -ENODEV; - - rc = clocksource_register_hz(&clocksource_uv, sn_rtc_cycles_per_second); - if (rc) - printk(KERN_INFO "UV RTC clocksource failed rc %d\n", rc); - else - printk(KERN_INFO "UV RTC clocksource registered freq %lu MHz\n", - sn_rtc_cycles_per_second/(unsigned long)1E6); - - if (rc || !uv_rtc_evt_enable || x86_platform_ipi_callback) - return rc; - - /* Setup and register clockevents */ - rc = uv_rtc_allocate_timers(); - if (rc) - goto error; - - x86_platform_ipi_callback = uv_rtc_interrupt; - - clock_event_device_uv.mult = div_sc(sn_rtc_cycles_per_second, - NSEC_PER_SEC, clock_event_device_uv.shift); - - clock_event_device_uv.min_delta_ns = NSEC_PER_SEC / - sn_rtc_cycles_per_second; - - clock_event_device_uv.max_delta_ns = clocksource_uv.mask * - (NSEC_PER_SEC / sn_rtc_cycles_per_second); - - rc = schedule_on_each_cpu(uv_rtc_register_clockevents); - if (rc) { - x86_platform_ipi_callback = NULL; - uv_rtc_deallocate_timers(); - goto error; - } - - printk(KERN_INFO "UV RTC clockevents registered\n"); - - return 0; - -error: - clocksource_unregister(&clocksource_uv); - printk(KERN_INFO "UV RTC clockevents failed rc %d\n", rc); - - return rc; -} -arch_initcall(uv_rtc_setup_clock); diff --git a/ANDROID_3.4.5/arch/x86/platform/visws/Makefile b/ANDROID_3.4.5/arch/x86/platform/visws/Makefile deleted file mode 100644 index 91bc17ab..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/visws/Makefile +++ /dev/null @@ -1 +0,0 @@ -obj-$(CONFIG_X86_VISWS) += visws_quirks.o diff --git a/ANDROID_3.4.5/arch/x86/platform/visws/visws_quirks.c b/ANDROID_3.4.5/arch/x86/platform/visws/visws_quirks.c deleted file mode 100644 index c7abf13a..00000000 --- a/ANDROID_3.4.5/arch/x86/platform/visws/visws_quirks.c +++ /dev/null @@ -1,608 +0,0 @@ -/* - * SGI Visual Workstation support and quirks, unmaintained. - * - * Split out from setup.c by davej@suse.de - * - * Copyright (C) 1999 Bent Hagemark, Ingo Molnar - * - * SGI Visual Workstation interrupt controller - * - * The Cobalt system ASIC in the Visual Workstation contains a "Cobalt" APIC - * which serves as the main interrupt controller in the system. Non-legacy - * hardware in the system uses this controller directly. Legacy devices - * are connected to the PIIX4 which in turn has its 8259(s) connected to - * a of the Cobalt APIC entry. - * - * 09/02/2000 - Updated for 2.4 by jbarnes@sgi.com - * - * 25/11/2002 - Updated for 2.5 by Andrey Panin <pazke@orbita1.ru> - */ -#include <linux/interrupt.h> -#include <linux/module.h> -#include <linux/init.h> -#include <linux/smp.h> - -#include <asm/visws/cobalt.h> -#include <asm/visws/piix4.h> -#include <asm/io_apic.h> -#include <asm/fixmap.h> -#include <asm/reboot.h> -#include <asm/setup.h> -#include <asm/apic.h> -#include <asm/e820.h> -#include <asm/time.h> -#include <asm/io.h> - -#include <linux/kernel_stat.h> - -#include <asm/i8259.h> -#include <asm/irq_vectors.h> -#include <asm/visws/lithium.h> - -#include <linux/sched.h> -#include <linux/kernel.h> -#include <linux/pci.h> -#include <linux/pci_ids.h> - -extern int no_broadcast; - -char visws_board_type = -1; -char visws_board_rev = -1; - -static void __init visws_time_init(void) -{ - printk(KERN_INFO "Starting Cobalt Timer system clock\n"); - - /* Set the countdown value */ - co_cpu_write(CO_CPU_TIMEVAL, CO_TIME_HZ/HZ); - - /* Start the timer */ - co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) | CO_CTRL_TIMERUN); - - /* Enable (unmask) the timer interrupt */ - co_cpu_write(CO_CPU_CTRL, co_cpu_read(CO_CPU_CTRL) & ~CO_CTRL_TIMEMASK); - - setup_default_timer_irq(); -} - -/* Replaces the default init_ISA_irqs in the generic setup */ -static void __init visws_pre_intr_init(void); - -/* Quirk for machine specific memory setup. */ - -#define MB (1024 * 1024) - -unsigned long sgivwfb_mem_phys; -unsigned long sgivwfb_mem_size; -EXPORT_SYMBOL(sgivwfb_mem_phys); -EXPORT_SYMBOL(sgivwfb_mem_size); - -long long mem_size __initdata = 0; - -static char * __init visws_memory_setup(void) -{ - long long gfx_mem_size = 8 * MB; - - mem_size = boot_params.alt_mem_k; - - if (!mem_size) { - printk(KERN_WARNING "Bootloader didn't set memory size, upgrade it !\n"); - mem_size = 128 * MB; - } - - /* - * this hardcodes the graphics memory to 8 MB - * it really should be sized dynamically (or at least - * set as a boot param) - */ - if (!sgivwfb_mem_size) { - printk(KERN_WARNING "Defaulting to 8 MB framebuffer size\n"); - sgivwfb_mem_size = 8 * MB; - } - - /* - * Trim to nearest MB - */ - sgivwfb_mem_size &= ~((1 << 20) - 1); - sgivwfb_mem_phys = mem_size - gfx_mem_size; - - e820_add_region(0, LOWMEMSIZE(), E820_RAM); - e820_add_region(HIGH_MEMORY, mem_size - sgivwfb_mem_size - HIGH_MEMORY, E820_RAM); - e820_add_region(sgivwfb_mem_phys, sgivwfb_mem_size, E820_RESERVED); - - return "PROM"; -} - -static void visws_machine_emergency_restart(void) -{ - /* - * Visual Workstations restart after this - * register is poked on the PIIX4 - */ - outb(PIIX4_RESET_VAL, PIIX4_RESET_PORT); -} - -static void visws_machine_power_off(void) -{ - unsigned short pm_status; -/* extern unsigned int pci_bus0; */ - - while ((pm_status = inw(PMSTS_PORT)) & 0x100) - outw(pm_status, PMSTS_PORT); - - outw(PM_SUSPEND_ENABLE, PMCNTRL_PORT); - - mdelay(10); - -#define PCI_CONF1_ADDRESS(bus, devfn, reg) \ - (0x80000000 | (bus << 16) | (devfn << 8) | (reg & ~3)) - -/* outl(PCI_CONF1_ADDRESS(pci_bus0, SPECIAL_DEV, SPECIAL_REG), 0xCF8); */ - outl(PIIX_SPECIAL_STOP, 0xCFC); -} - -static void __init visws_get_smp_config(unsigned int early) -{ -} - -/* - * The Visual Workstation is Intel MP compliant in the hardware - * sense, but it doesn't have a BIOS(-configuration table). - * No problem for Linux. - */ - -static void __init MP_processor_info(struct mpc_cpu *m) -{ - int ver, logical_apicid; - physid_mask_t apic_cpus; - - if (!(m->cpuflag & CPU_ENABLED)) - return; - - logical_apicid = m->apicid; - printk(KERN_INFO "%sCPU #%d %u:%u APIC version %d\n", - m->cpuflag & CPU_BOOTPROCESSOR ? "Bootup " : "", - m->apicid, (m->cpufeature & CPU_FAMILY_MASK) >> 8, - (m->cpufeature & CPU_MODEL_MASK) >> 4, m->apicver); - - if (m->cpuflag & CPU_BOOTPROCESSOR) - boot_cpu_physical_apicid = m->apicid; - - ver = m->apicver; - if ((ver >= 0x14 && m->apicid >= 0xff) || m->apicid >= 0xf) { - printk(KERN_ERR "Processor #%d INVALID. (Max ID: %d).\n", - m->apicid, MAX_LOCAL_APIC); - return; - } - - apic->apicid_to_cpu_present(m->apicid, &apic_cpus); - physids_or(phys_cpu_present_map, phys_cpu_present_map, apic_cpus); - /* - * Validate version - */ - if (ver == 0x0) { - printk(KERN_ERR "BIOS bug, APIC version is 0 for CPU#%d! " - "fixing up to 0x10. (tell your hw vendor)\n", - m->apicid); - ver = 0x10; - } - apic_version[m->apicid] = ver; -} - -static void __init visws_find_smp_config(void) -{ - struct mpc_cpu *mp = phys_to_virt(CO_CPU_TAB_PHYS); - unsigned short ncpus = readw(phys_to_virt(CO_CPU_NUM_PHYS)); - - if (ncpus > CO_CPU_MAX) { - printk(KERN_WARNING "find_visws_smp: got cpu count of %d at %p\n", - ncpus, mp); - - ncpus = CO_CPU_MAX; - } - - if (ncpus > setup_max_cpus) - ncpus = setup_max_cpus; - -#ifdef CONFIG_X86_LOCAL_APIC - smp_found_config = 1; -#endif - while (ncpus--) - MP_processor_info(mp++); - - mp_lapic_addr = APIC_DEFAULT_PHYS_BASE; -} - -static void visws_trap_init(void); - -void __init visws_early_detect(void) -{ - int raw; - - visws_board_type = (char)(inb_p(PIIX_GPI_BD_REG) & PIIX_GPI_BD_REG) - >> PIIX_GPI_BD_SHIFT; - - if (visws_board_type < 0) - return; - - /* - * Override the default platform setup functions - */ - x86_init.resources.memory_setup = visws_memory_setup; - x86_init.mpparse.get_smp_config = visws_get_smp_config; - x86_init.mpparse.find_smp_config = visws_find_smp_config; - x86_init.irqs.pre_vector_init = visws_pre_intr_init; - x86_init.irqs.trap_init = visws_trap_init; - x86_init.timers.timer_init = visws_time_init; - x86_init.pci.init = pci_visws_init; - x86_init.pci.init_irq = x86_init_noop; - - /* - * Install reboot quirks: - */ - pm_power_off = visws_machine_power_off; - machine_ops.emergency_restart = visws_machine_emergency_restart; - - /* - * Do not use broadcast IPIs: - */ - no_broadcast = 0; - -#ifdef CONFIG_X86_IO_APIC - /* - * Turn off IO-APIC detection and initialization: - */ - skip_ioapic_setup = 1; -#endif - - /* - * Get Board rev. - * First, we have to initialize the 307 part to allow us access - * to the GPIO registers. Let's map them at 0x0fc0 which is right - * after the PIIX4 PM section. - */ - outb_p(SIO_DEV_SEL, SIO_INDEX); - outb_p(SIO_GP_DEV, SIO_DATA); /* Talk to GPIO regs. */ - - outb_p(SIO_DEV_MSB, SIO_INDEX); - outb_p(SIO_GP_MSB, SIO_DATA); /* MSB of GPIO base address */ - - outb_p(SIO_DEV_LSB, SIO_INDEX); - outb_p(SIO_GP_LSB, SIO_DATA); /* LSB of GPIO base address */ - - outb_p(SIO_DEV_ENB, SIO_INDEX); - outb_p(1, SIO_DATA); /* Enable GPIO registers. */ - - /* - * Now, we have to map the power management section to write - * a bit which enables access to the GPIO registers. - * What lunatic came up with this shit? - */ - outb_p(SIO_DEV_SEL, SIO_INDEX); - outb_p(SIO_PM_DEV, SIO_DATA); /* Talk to GPIO regs. */ - - outb_p(SIO_DEV_MSB, SIO_INDEX); - outb_p(SIO_PM_MSB, SIO_DATA); /* MSB of PM base address */ - - outb_p(SIO_DEV_LSB, SIO_INDEX); - outb_p(SIO_PM_LSB, SIO_DATA); /* LSB of PM base address */ - - outb_p(SIO_DEV_ENB, SIO_INDEX); - outb_p(1, SIO_DATA); /* Enable PM registers. */ - - /* - * Now, write the PM register which enables the GPIO registers. - */ - outb_p(SIO_PM_FER2, SIO_PM_INDEX); - outb_p(SIO_PM_GP_EN, SIO_PM_DATA); - - /* - * Now, initialize the GPIO registers. - * We want them all to be inputs which is the - * power on default, so let's leave them alone. - * So, let's just read the board rev! - */ - raw = inb_p(SIO_GP_DATA1); - raw &= 0x7f; /* 7 bits of valid board revision ID. */ - - if (visws_board_type == VISWS_320) { - if (raw < 0x6) { - visws_board_rev = 4; - } else if (raw < 0xc) { - visws_board_rev = 5; - } else { - visws_board_rev = 6; - } - } else if (visws_board_type == VISWS_540) { - visws_board_rev = 2; - } else { - visws_board_rev = raw; - } - - printk(KERN_INFO "Silicon Graphics Visual Workstation %s (rev %d) detected\n", - (visws_board_type == VISWS_320 ? "320" : - (visws_board_type == VISWS_540 ? "540" : - "unknown")), visws_board_rev); -} - -#define A01234 (LI_INTA_0 | LI_INTA_1 | LI_INTA_2 | LI_INTA_3 | LI_INTA_4) -#define BCD (LI_INTB | LI_INTC | LI_INTD) -#define ALLDEVS (A01234 | BCD) - -static __init void lithium_init(void) -{ - set_fixmap(FIX_LI_PCIA, LI_PCI_A_PHYS); - set_fixmap(FIX_LI_PCIB, LI_PCI_B_PHYS); - - if ((li_pcia_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) || - (li_pcia_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) { - printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'A'); -/* panic("This machine is not SGI Visual Workstation 320/540"); */ - } - - if ((li_pcib_read16(PCI_VENDOR_ID) != PCI_VENDOR_ID_SGI) || - (li_pcib_read16(PCI_DEVICE_ID) != PCI_DEVICE_ID_SGI_LITHIUM)) { - printk(KERN_EMERG "Lithium hostbridge %c not found\n", 'B'); -/* panic("This machine is not SGI Visual Workstation 320/540"); */ - } - - li_pcia_write16(LI_PCI_INTEN, ALLDEVS); - li_pcib_write16(LI_PCI_INTEN, ALLDEVS); -} - -static __init void cobalt_init(void) -{ - /* - * On normal SMP PC this is used only with SMP, but we have to - * use it and set it up here to start the Cobalt clock - */ - set_fixmap(FIX_APIC_BASE, APIC_DEFAULT_PHYS_BASE); - setup_local_APIC(); - printk(KERN_INFO "Local APIC Version %#x, ID %#x\n", - (unsigned int)apic_read(APIC_LVR), - (unsigned int)apic_read(APIC_ID)); - - set_fixmap(FIX_CO_CPU, CO_CPU_PHYS); - set_fixmap(FIX_CO_APIC, CO_APIC_PHYS); - printk(KERN_INFO "Cobalt Revision %#lx, APIC ID %#lx\n", - co_cpu_read(CO_CPU_REV), co_apic_read(CO_APIC_ID)); - - /* Enable Cobalt APIC being careful to NOT change the ID! */ - co_apic_write(CO_APIC_ID, co_apic_read(CO_APIC_ID) | CO_APIC_ENABLE); - - printk(KERN_INFO "Cobalt APIC enabled: ID reg %#lx\n", - co_apic_read(CO_APIC_ID)); -} - -static void __init visws_trap_init(void) -{ - lithium_init(); - cobalt_init(); -} - -/* - * IRQ controller / APIC support: - */ - -static DEFINE_SPINLOCK(cobalt_lock); - -/* - * Set the given Cobalt APIC Redirection Table entry to point - * to the given IDT vector/index. - */ -static inline void co_apic_set(int entry, int irq) -{ - co_apic_write(CO_APIC_LO(entry), CO_APIC_LEVEL | (irq + FIRST_EXTERNAL_VECTOR)); - co_apic_write(CO_APIC_HI(entry), 0); -} - -/* - * Cobalt (IO)-APIC functions to handle PCI devices. - */ -static inline int co_apic_ide0_hack(void) -{ - extern char visws_board_type; - extern char visws_board_rev; - - if (visws_board_type == VISWS_320 && visws_board_rev == 5) - return 5; - return CO_APIC_IDE0; -} - -static int is_co_apic(unsigned int irq) -{ - if (IS_CO_APIC(irq)) - return CO_APIC(irq); - - switch (irq) { - case 0: return CO_APIC_CPU; - case CO_IRQ_IDE0: return co_apic_ide0_hack(); - case CO_IRQ_IDE1: return CO_APIC_IDE1; - default: return -1; - } -} - - -/* - * This is the SGI Cobalt (IO-)APIC: - */ -static void enable_cobalt_irq(struct irq_data *data) -{ - co_apic_set(is_co_apic(data->irq), data->irq); -} - -static void disable_cobalt_irq(struct irq_data *data) -{ - int entry = is_co_apic(data->irq); - - co_apic_write(CO_APIC_LO(entry), CO_APIC_MASK); - co_apic_read(CO_APIC_LO(entry)); -} - -static void ack_cobalt_irq(struct irq_data *data) -{ - unsigned long flags; - - spin_lock_irqsave(&cobalt_lock, flags); - disable_cobalt_irq(data); - apic_write(APIC_EOI, APIC_EIO_ACK); - spin_unlock_irqrestore(&cobalt_lock, flags); -} - -static struct irq_chip cobalt_irq_type = { - .name = "Cobalt-APIC", - .irq_enable = enable_cobalt_irq, - .irq_disable = disable_cobalt_irq, - .irq_ack = ack_cobalt_irq, -}; - - -/* - * This is the PIIX4-based 8259 that is wired up indirectly to Cobalt - * -- not the manner expected by the code in i8259.c. - * - * there is a 'master' physical interrupt source that gets sent to - * the CPU. But in the chipset there are various 'virtual' interrupts - * waiting to be handled. We represent this to Linux through a 'master' - * interrupt controller type, and through a special virtual interrupt- - * controller. Device drivers only see the virtual interrupt sources. - */ -static unsigned int startup_piix4_master_irq(struct irq_data *data) -{ - legacy_pic->init(0); - enable_cobalt_irq(data); - return 0; -} - -static struct irq_chip piix4_master_irq_type = { - .name = "PIIX4-master", - .irq_startup = startup_piix4_master_irq, - .irq_ack = ack_cobalt_irq, -}; - -static void pii4_mask(struct irq_data *data) { } - -static struct irq_chip piix4_virtual_irq_type = { - .name = "PIIX4-virtual", - .irq_mask = pii4_mask, -}; - -/* - * PIIX4-8259 master/virtual functions to handle interrupt requests - * from legacy devices: floppy, parallel, serial, rtc. - * - * None of these get Cobalt APIC entries, neither do they have IDT - * entries. These interrupts are purely virtual and distributed from - * the 'master' interrupt source: CO_IRQ_8259. - * - * When the 8259 interrupts its handler figures out which of these - * devices is interrupting and dispatches to its handler. - * - * CAREFUL: devices see the 'virtual' interrupt only. Thus disable/ - * enable_irq gets the right irq. This 'master' irq is never directly - * manipulated by any driver. - */ -static irqreturn_t piix4_master_intr(int irq, void *dev_id) -{ - unsigned long flags; - int realirq; - - raw_spin_lock_irqsave(&i8259A_lock, flags); - - /* Find out what's interrupting in the PIIX4 master 8259 */ - outb(0x0c, 0x20); /* OCW3 Poll command */ - realirq = inb(0x20); - - /* - * Bit 7 == 0 means invalid/spurious - */ - if (unlikely(!(realirq & 0x80))) - goto out_unlock; - - realirq &= 7; - - if (unlikely(realirq == 2)) { - outb(0x0c, 0xa0); - realirq = inb(0xa0); - - if (unlikely(!(realirq & 0x80))) - goto out_unlock; - - realirq = (realirq & 7) + 8; - } - - /* mask and ack interrupt */ - cached_irq_mask |= 1 << realirq; - if (unlikely(realirq > 7)) { - inb(0xa1); - outb(cached_slave_mask, 0xa1); - outb(0x60 + (realirq & 7), 0xa0); - outb(0x60 + 2, 0x20); - } else { - inb(0x21); - outb(cached_master_mask, 0x21); - outb(0x60 + realirq, 0x20); - } - - raw_spin_unlock_irqrestore(&i8259A_lock, flags); - - /* - * handle this 'virtual interrupt' as a Cobalt one now. - */ - generic_handle_irq(realirq); - - return IRQ_HANDLED; - -out_unlock: - raw_spin_unlock_irqrestore(&i8259A_lock, flags); - return IRQ_NONE; -} - -static struct irqaction master_action = { - .handler = piix4_master_intr, - .name = "PIIX4-8259", - .flags = IRQF_NO_THREAD, -}; - -static struct irqaction cascade_action = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; - -static inline void set_piix4_virtual_irq_type(void) -{ - piix4_virtual_irq_type.irq_enable = i8259A_chip.irq_unmask; - piix4_virtual_irq_type.irq_disable = i8259A_chip.irq_mask; - piix4_virtual_irq_type.irq_unmask = i8259A_chip.irq_unmask; -} - -static void __init visws_pre_intr_init(void) -{ - int i; - - set_piix4_virtual_irq_type(); - - for (i = 0; i < CO_IRQ_APIC0 + CO_APIC_LAST + 1; i++) { - struct irq_chip *chip = NULL; - - if (i == 0) - chip = &cobalt_irq_type; - else if (i == CO_IRQ_IDE0) - chip = &cobalt_irq_type; - else if (i == CO_IRQ_IDE1) - chip = &cobalt_irq_type; - else if (i == CO_IRQ_8259) - chip = &piix4_master_irq_type; - else if (i < CO_IRQ_APIC0) - chip = &piix4_virtual_irq_type; - else if (IS_CO_APIC(i)) - chip = &cobalt_irq_type; - - if (chip) - irq_set_chip(i, chip); - } - - setup_irq(CO_IRQ_8259, &master_action); - setup_irq(2, &cascade_action); -} |