diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/alpha/kernel/sys_dp264.c')
-rw-r--r-- | ANDROID_3.4.5/arch/alpha/kernel/sys_dp264.c | 673 |
1 files changed, 0 insertions, 673 deletions
diff --git a/ANDROID_3.4.5/arch/alpha/kernel/sys_dp264.c b/ANDROID_3.4.5/arch/alpha/kernel/sys_dp264.c deleted file mode 100644 index 5bf401f7..00000000 --- a/ANDROID_3.4.5/arch/alpha/kernel/sys_dp264.c +++ /dev/null @@ -1,673 +0,0 @@ -/* - * linux/arch/alpha/kernel/sys_dp264.c - * - * Copyright (C) 1995 David A Rusling - * Copyright (C) 1996, 1999 Jay A Estabrook - * Copyright (C) 1998, 1999 Richard Henderson - * - * Modified by Christopher C. Chimelis, 2001 to - * add support for the addition of Shark to the - * Tsunami family. - * - * Code supporting the DP264 (EV6+TSUNAMI). - */ - -#include <linux/kernel.h> -#include <linux/types.h> -#include <linux/mm.h> -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/init.h> -#include <linux/bitops.h> - -#include <asm/ptrace.h> -#include <asm/dma.h> -#include <asm/irq.h> -#include <asm/mmu_context.h> -#include <asm/io.h> -#include <asm/pgtable.h> -#include <asm/core_tsunami.h> -#include <asm/hwrpb.h> -#include <asm/tlbflush.h> - -#include "proto.h" -#include "irq_impl.h" -#include "pci_impl.h" -#include "machvec_impl.h" - - -/* Note mask bit is true for ENABLED irqs. */ -static unsigned long cached_irq_mask; -/* dp264 boards handle at max four CPUs */ -static unsigned long cpu_irq_affinity[4] = { 0UL, 0UL, 0UL, 0UL }; - -DEFINE_SPINLOCK(dp264_irq_lock); - -static void -tsunami_update_irq_hw(unsigned long mask) -{ - register tsunami_cchip *cchip = TSUNAMI_cchip; - unsigned long isa_enable = 1UL << 55; - register int bcpu = boot_cpuid; - -#ifdef CONFIG_SMP - volatile unsigned long *dim0, *dim1, *dim2, *dim3; - unsigned long mask0, mask1, mask2, mask3, dummy; - - mask &= ~isa_enable; - mask0 = mask & cpu_irq_affinity[0]; - mask1 = mask & cpu_irq_affinity[1]; - mask2 = mask & cpu_irq_affinity[2]; - mask3 = mask & cpu_irq_affinity[3]; - - if (bcpu == 0) mask0 |= isa_enable; - else if (bcpu == 1) mask1 |= isa_enable; - else if (bcpu == 2) mask2 |= isa_enable; - else mask3 |= isa_enable; - - dim0 = &cchip->dim0.csr; - dim1 = &cchip->dim1.csr; - dim2 = &cchip->dim2.csr; - dim3 = &cchip->dim3.csr; - if (!cpu_possible(0)) dim0 = &dummy; - if (!cpu_possible(1)) dim1 = &dummy; - if (!cpu_possible(2)) dim2 = &dummy; - if (!cpu_possible(3)) dim3 = &dummy; - - *dim0 = mask0; - *dim1 = mask1; - *dim2 = mask2; - *dim3 = mask3; - mb(); - *dim0; - *dim1; - *dim2; - *dim3; -#else - volatile unsigned long *dimB; - if (bcpu == 0) dimB = &cchip->dim0.csr; - else if (bcpu == 1) dimB = &cchip->dim1.csr; - else if (bcpu == 2) dimB = &cchip->dim2.csr; - else dimB = &cchip->dim3.csr; - - *dimB = mask | isa_enable; - mb(); - *dimB; -#endif -} - -static void -dp264_enable_irq(struct irq_data *d) -{ - spin_lock(&dp264_irq_lock); - cached_irq_mask |= 1UL << d->irq; - tsunami_update_irq_hw(cached_irq_mask); - spin_unlock(&dp264_irq_lock); -} - -static void -dp264_disable_irq(struct irq_data *d) -{ - spin_lock(&dp264_irq_lock); - cached_irq_mask &= ~(1UL << d->irq); - tsunami_update_irq_hw(cached_irq_mask); - spin_unlock(&dp264_irq_lock); -} - -static void -clipper_enable_irq(struct irq_data *d) -{ - spin_lock(&dp264_irq_lock); - cached_irq_mask |= 1UL << (d->irq - 16); - tsunami_update_irq_hw(cached_irq_mask); - spin_unlock(&dp264_irq_lock); -} - -static void -clipper_disable_irq(struct irq_data *d) -{ - spin_lock(&dp264_irq_lock); - cached_irq_mask &= ~(1UL << (d->irq - 16)); - tsunami_update_irq_hw(cached_irq_mask); - spin_unlock(&dp264_irq_lock); -} - -static void -cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity) -{ - int cpu; - - for (cpu = 0; cpu < 4; cpu++) { - unsigned long aff = cpu_irq_affinity[cpu]; - if (cpumask_test_cpu(cpu, &affinity)) - aff |= 1UL << irq; - else - aff &= ~(1UL << irq); - cpu_irq_affinity[cpu] = aff; - } -} - -static int -dp264_set_affinity(struct irq_data *d, const struct cpumask *affinity, - bool force) -{ - spin_lock(&dp264_irq_lock); - cpu_set_irq_affinity(d->irq, *affinity); - tsunami_update_irq_hw(cached_irq_mask); - spin_unlock(&dp264_irq_lock); - - return 0; -} - -static int -clipper_set_affinity(struct irq_data *d, const struct cpumask *affinity, - bool force) -{ - spin_lock(&dp264_irq_lock); - cpu_set_irq_affinity(d->irq - 16, *affinity); - tsunami_update_irq_hw(cached_irq_mask); - spin_unlock(&dp264_irq_lock); - - return 0; -} - -static struct irq_chip dp264_irq_type = { - .name = "DP264", - .irq_unmask = dp264_enable_irq, - .irq_mask = dp264_disable_irq, - .irq_mask_ack = dp264_disable_irq, - .irq_set_affinity = dp264_set_affinity, -}; - -static struct irq_chip clipper_irq_type = { - .name = "CLIPPER", - .irq_unmask = clipper_enable_irq, - .irq_mask = clipper_disable_irq, - .irq_mask_ack = clipper_disable_irq, - .irq_set_affinity = clipper_set_affinity, -}; - -static void -dp264_device_interrupt(unsigned long vector) -{ -#if 1 - printk("dp264_device_interrupt: NOT IMPLEMENTED YET!!\n"); -#else - unsigned long pld; - unsigned int i; - - /* Read the interrupt summary register of TSUNAMI */ - pld = TSUNAMI_cchip->dir0.csr; - - /* - * Now for every possible bit set, work through them and call - * the appropriate interrupt handler. - */ - while (pld) { - i = ffz(~pld); - pld &= pld - 1; /* clear least bit set */ - if (i == 55) - isa_device_interrupt(vector); - else - handle_irq(16 + i); -#if 0 - TSUNAMI_cchip->dir0.csr = 1UL << i; mb(); - tmp = TSUNAMI_cchip->dir0.csr; -#endif - } -#endif -} - -static void -dp264_srm_device_interrupt(unsigned long vector) -{ - int irq; - - irq = (vector - 0x800) >> 4; - - /* - * The SRM console reports PCI interrupts with a vector calculated by: - * - * 0x900 + (0x10 * DRIR-bit) - * - * So bit 16 shows up as IRQ 32, etc. - * - * On DP264/BRICK/MONET, we adjust it down by 16 because at least - * that many of the low order bits of the DRIR are not used, and - * so we don't count them. - */ - if (irq >= 32) - irq -= 16; - - handle_irq(irq); -} - -static void -clipper_srm_device_interrupt(unsigned long vector) -{ - int irq; - - irq = (vector - 0x800) >> 4; - -/* - * The SRM console reports PCI interrupts with a vector calculated by: - * - * 0x900 + (0x10 * DRIR-bit) - * - * So bit 16 shows up as IRQ 32, etc. - * - * CLIPPER uses bits 8-47 for PCI interrupts, so we do not need - * to scale down the vector reported, we just use it. - * - * Eg IRQ 24 is DRIR bit 8, etc, etc - */ - handle_irq(irq); -} - -static void __init -init_tsunami_irqs(struct irq_chip * ops, int imin, int imax) -{ - long i; - for (i = imin; i <= imax; ++i) { - irq_set_chip_and_handler(i, ops, handle_level_irq); - irq_set_status_flags(i, IRQ_LEVEL); - } -} - -static void __init -dp264_init_irq(void) -{ - outb(0, DMA1_RESET_REG); - outb(0, DMA2_RESET_REG); - outb(DMA_MODE_CASCADE, DMA2_MODE_REG); - outb(0, DMA2_MASK_REG); - - if (alpha_using_srm) - alpha_mv.device_interrupt = dp264_srm_device_interrupt; - - tsunami_update_irq_hw(0); - - init_i8259a_irqs(); - init_tsunami_irqs(&dp264_irq_type, 16, 47); -} - -static void __init -clipper_init_irq(void) -{ - outb(0, DMA1_RESET_REG); - outb(0, DMA2_RESET_REG); - outb(DMA_MODE_CASCADE, DMA2_MODE_REG); - outb(0, DMA2_MASK_REG); - - if (alpha_using_srm) - alpha_mv.device_interrupt = clipper_srm_device_interrupt; - - tsunami_update_irq_hw(0); - - init_i8259a_irqs(); - init_tsunami_irqs(&clipper_irq_type, 24, 63); -} - - -/* - * PCI Fixup configuration. - * - * Summary @ TSUNAMI_CSR_DIM0: - * Bit Meaning - * 0-17 Unused - *18 Interrupt SCSI B (Adaptec 7895 builtin) - *19 Interrupt SCSI A (Adaptec 7895 builtin) - *20 Interrupt Line D from slot 2 PCI0 - *21 Interrupt Line C from slot 2 PCI0 - *22 Interrupt Line B from slot 2 PCI0 - *23 Interrupt Line A from slot 2 PCI0 - *24 Interrupt Line D from slot 1 PCI0 - *25 Interrupt Line C from slot 1 PCI0 - *26 Interrupt Line B from slot 1 PCI0 - *27 Interrupt Line A from slot 1 PCI0 - *28 Interrupt Line D from slot 0 PCI0 - *29 Interrupt Line C from slot 0 PCI0 - *30 Interrupt Line B from slot 0 PCI0 - *31 Interrupt Line A from slot 0 PCI0 - * - *32 Interrupt Line D from slot 3 PCI1 - *33 Interrupt Line C from slot 3 PCI1 - *34 Interrupt Line B from slot 3 PCI1 - *35 Interrupt Line A from slot 3 PCI1 - *36 Interrupt Line D from slot 2 PCI1 - *37 Interrupt Line C from slot 2 PCI1 - *38 Interrupt Line B from slot 2 PCI1 - *39 Interrupt Line A from slot 2 PCI1 - *40 Interrupt Line D from slot 1 PCI1 - *41 Interrupt Line C from slot 1 PCI1 - *42 Interrupt Line B from slot 1 PCI1 - *43 Interrupt Line A from slot 1 PCI1 - *44 Interrupt Line D from slot 0 PCI1 - *45 Interrupt Line C from slot 0 PCI1 - *46 Interrupt Line B from slot 0 PCI1 - *47 Interrupt Line A from slot 0 PCI1 - *48-52 Unused - *53 PCI0 NMI (from Cypress) - *54 PCI0 SMI INT (from Cypress) - *55 PCI0 ISA Interrupt (from Cypress) - *56-60 Unused - *61 PCI1 Bus Error - *62 PCI0 Bus Error - *63 Reserved - * - * IdSel - * 5 Cypress Bridge I/O - * 6 SCSI Adaptec builtin - * 7 64 bit PCI option slot 0 (all busses) - * 8 64 bit PCI option slot 1 (all busses) - * 9 64 bit PCI option slot 2 (all busses) - * 10 64 bit PCI option slot 3 (not bus 0) - */ - -static int __init -isa_irq_fixup(const struct pci_dev *dev, int irq) -{ - u8 irq8; - - if (irq > 0) - return irq; - - /* This interrupt is routed via ISA bridge, so we'll - just have to trust whatever value the console might - have assigned. */ - pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq8); - - return irq8 & 0xf; -} - -static int __init -dp264_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[6][5] __initdata = { - /*INT INTA INTB INTC INTD */ - { -1, -1, -1, -1, -1}, /* IdSel 5 ISA Bridge */ - { 16+ 3, 16+ 3, 16+ 2, 16+ 2, 16+ 2}, /* IdSel 6 SCSI builtin*/ - { 16+15, 16+15, 16+14, 16+13, 16+12}, /* IdSel 7 slot 0 */ - { 16+11, 16+11, 16+10, 16+ 9, 16+ 8}, /* IdSel 8 slot 1 */ - { 16+ 7, 16+ 7, 16+ 6, 16+ 5, 16+ 4}, /* IdSel 9 slot 2 */ - { 16+ 3, 16+ 3, 16+ 2, 16+ 1, 16+ 0} /* IdSel 10 slot 3 */ - }; - const long min_idsel = 5, max_idsel = 10, irqs_per_slot = 5; - struct pci_controller *hose = dev->sysdata; - int irq = COMMON_TABLE_LOOKUP; - - if (irq > 0) - irq += 16 * hose->index; - - return isa_irq_fixup(dev, irq); -} - -static int __init -monet_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[13][5] __initdata = { - /*INT INTA INTB INTC INTD */ - { 45, 45, 45, 45, 45}, /* IdSel 3 21143 PCI1 */ - { -1, -1, -1, -1, -1}, /* IdSel 4 unused */ - { -1, -1, -1, -1, -1}, /* IdSel 5 unused */ - { 47, 47, 47, 47, 47}, /* IdSel 6 SCSI PCI1 */ - { -1, -1, -1, -1, -1}, /* IdSel 7 ISA Bridge */ - { -1, -1, -1, -1, -1}, /* IdSel 8 P2P PCI1 */ -#if 1 - { 28, 28, 29, 30, 31}, /* IdSel 14 slot 4 PCI2*/ - { 24, 24, 25, 26, 27}, /* IdSel 15 slot 5 PCI2*/ -#else - { -1, -1, -1, -1, -1}, /* IdSel 9 unused */ - { -1, -1, -1, -1, -1}, /* IdSel 10 unused */ -#endif - { 40, 40, 41, 42, 43}, /* IdSel 11 slot 1 PCI0*/ - { 36, 36, 37, 38, 39}, /* IdSel 12 slot 2 PCI0*/ - { 32, 32, 33, 34, 35}, /* IdSel 13 slot 3 PCI0*/ - { 28, 28, 29, 30, 31}, /* IdSel 14 slot 4 PCI2*/ - { 24, 24, 25, 26, 27} /* IdSel 15 slot 5 PCI2*/ - }; - const long min_idsel = 3, max_idsel = 15, irqs_per_slot = 5; - - return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP); -} - -static u8 __init -monet_swizzle(struct pci_dev *dev, u8 *pinp) -{ - struct pci_controller *hose = dev->sysdata; - int slot, pin = *pinp; - - if (!dev->bus->parent) { - slot = PCI_SLOT(dev->devfn); - } - /* Check for the built-in bridge on hose 1. */ - else if (hose->index == 1 && PCI_SLOT(dev->bus->self->devfn) == 8) { - slot = PCI_SLOT(dev->devfn); - } else { - /* Must be a card-based bridge. */ - do { - /* Check for built-in bridge on hose 1. */ - if (hose->index == 1 && - PCI_SLOT(dev->bus->self->devfn) == 8) { - slot = PCI_SLOT(dev->devfn); - break; - } - pin = pci_swizzle_interrupt_pin(dev, pin); - - /* Move up the chain of bridges. */ - dev = dev->bus->self; - /* Slot of the next bridge. */ - slot = PCI_SLOT(dev->devfn); - } while (dev->bus->self); - } - *pinp = pin; - return slot; -} - -static int __init -webbrick_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[13][5] __initdata = { - /*INT INTA INTB INTC INTD */ - { -1, -1, -1, -1, -1}, /* IdSel 7 ISA Bridge */ - { -1, -1, -1, -1, -1}, /* IdSel 8 unused */ - { 29, 29, 29, 29, 29}, /* IdSel 9 21143 #1 */ - { -1, -1, -1, -1, -1}, /* IdSel 10 unused */ - { 30, 30, 30, 30, 30}, /* IdSel 11 21143 #2 */ - { -1, -1, -1, -1, -1}, /* IdSel 12 unused */ - { -1, -1, -1, -1, -1}, /* IdSel 13 unused */ - { 35, 35, 34, 33, 32}, /* IdSel 14 slot 0 */ - { 39, 39, 38, 37, 36}, /* IdSel 15 slot 1 */ - { 43, 43, 42, 41, 40}, /* IdSel 16 slot 2 */ - { 47, 47, 46, 45, 44}, /* IdSel 17 slot 3 */ - }; - const long min_idsel = 7, max_idsel = 17, irqs_per_slot = 5; - - return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP); -} - -static int __init -clipper_map_irq(const struct pci_dev *dev, u8 slot, u8 pin) -{ - static char irq_tab[7][5] __initdata = { - /*INT INTA INTB INTC INTD */ - { 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 1 slot 1 */ - { 16+12, 16+12, 16+13, 16+14, 16+15}, /* IdSel 2 slot 2 */ - { 16+16, 16+16, 16+17, 16+18, 16+19}, /* IdSel 3 slot 3 */ - { 16+20, 16+20, 16+21, 16+22, 16+23}, /* IdSel 4 slot 4 */ - { 16+24, 16+24, 16+25, 16+26, 16+27}, /* IdSel 5 slot 5 */ - { 16+28, 16+28, 16+29, 16+30, 16+31}, /* IdSel 6 slot 6 */ - { -1, -1, -1, -1, -1} /* IdSel 7 ISA Bridge */ - }; - const long min_idsel = 1, max_idsel = 7, irqs_per_slot = 5; - struct pci_controller *hose = dev->sysdata; - int irq = COMMON_TABLE_LOOKUP; - - if (irq > 0) - irq += 16 * hose->index; - - return isa_irq_fixup(dev, irq); -} - -static void __init -dp264_init_pci(void) -{ - common_init_pci(); - SMC669_Init(0); - locate_and_init_vga(NULL); -} - -static void __init -monet_init_pci(void) -{ - common_init_pci(); - SMC669_Init(1); - es1888_init(); - locate_and_init_vga(NULL); -} - -static void __init -clipper_init_pci(void) -{ - common_init_pci(); - locate_and_init_vga(NULL); -} - -static void __init -webbrick_init_arch(void) -{ - tsunami_init_arch(); - - /* Tsunami caches 4 PTEs at a time; DS10 has only 1 hose. */ - hose_head->sg_isa->align_entry = 4; - hose_head->sg_pci->align_entry = 4; -} - - -/* - * The System Vectors - */ - -struct alpha_machine_vector dp264_mv __initmv = { - .vector_name = "DP264", - DO_EV6_MMU, - DO_DEFAULT_RTC, - DO_TSUNAMI_IO, - .machine_check = tsunami_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = DEFAULT_MEM_BASE, - .pci_dac_offset = TSUNAMI_DAC_OFFSET, - - .nr_irqs = 64, - .device_interrupt = dp264_device_interrupt, - - .init_arch = tsunami_init_arch, - .init_irq = dp264_init_irq, - .init_rtc = common_init_rtc, - .init_pci = dp264_init_pci, - .kill_arch = tsunami_kill_arch, - .pci_map_irq = dp264_map_irq, - .pci_swizzle = common_swizzle, -}; -ALIAS_MV(dp264) - -struct alpha_machine_vector monet_mv __initmv = { - .vector_name = "Monet", - DO_EV6_MMU, - DO_DEFAULT_RTC, - DO_TSUNAMI_IO, - .machine_check = tsunami_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = DEFAULT_MEM_BASE, - .pci_dac_offset = TSUNAMI_DAC_OFFSET, - - .nr_irqs = 64, - .device_interrupt = dp264_device_interrupt, - - .init_arch = tsunami_init_arch, - .init_irq = dp264_init_irq, - .init_rtc = common_init_rtc, - .init_pci = monet_init_pci, - .kill_arch = tsunami_kill_arch, - .pci_map_irq = monet_map_irq, - .pci_swizzle = monet_swizzle, -}; - -struct alpha_machine_vector webbrick_mv __initmv = { - .vector_name = "Webbrick", - DO_EV6_MMU, - DO_DEFAULT_RTC, - DO_TSUNAMI_IO, - .machine_check = tsunami_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = DEFAULT_MEM_BASE, - .pci_dac_offset = TSUNAMI_DAC_OFFSET, - - .nr_irqs = 64, - .device_interrupt = dp264_device_interrupt, - - .init_arch = webbrick_init_arch, - .init_irq = dp264_init_irq, - .init_rtc = common_init_rtc, - .init_pci = common_init_pci, - .kill_arch = tsunami_kill_arch, - .pci_map_irq = webbrick_map_irq, - .pci_swizzle = common_swizzle, -}; - -struct alpha_machine_vector clipper_mv __initmv = { - .vector_name = "Clipper", - DO_EV6_MMU, - DO_DEFAULT_RTC, - DO_TSUNAMI_IO, - .machine_check = tsunami_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = DEFAULT_MEM_BASE, - .pci_dac_offset = TSUNAMI_DAC_OFFSET, - - .nr_irqs = 64, - .device_interrupt = dp264_device_interrupt, - - .init_arch = tsunami_init_arch, - .init_irq = clipper_init_irq, - .init_rtc = common_init_rtc, - .init_pci = clipper_init_pci, - .kill_arch = tsunami_kill_arch, - .pci_map_irq = clipper_map_irq, - .pci_swizzle = common_swizzle, -}; - -/* Sharks strongly resemble Clipper, at least as far - * as interrupt routing, etc, so we're using the - * same functions as Clipper does - */ - -struct alpha_machine_vector shark_mv __initmv = { - .vector_name = "Shark", - DO_EV6_MMU, - DO_DEFAULT_RTC, - DO_TSUNAMI_IO, - .machine_check = tsunami_machine_check, - .max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS, - .min_io_address = DEFAULT_IO_BASE, - .min_mem_address = DEFAULT_MEM_BASE, - .pci_dac_offset = TSUNAMI_DAC_OFFSET, - - .nr_irqs = 64, - .device_interrupt = dp264_device_interrupt, - - .init_arch = tsunami_init_arch, - .init_irq = clipper_init_irq, - .init_rtc = common_init_rtc, - .init_pci = common_init_pci, - .kill_arch = tsunami_kill_arch, - .pci_map_irq = clipper_map_irq, - .pci_swizzle = common_swizzle, -}; - -/* No alpha_mv alias for webbrick/monet/clipper, since we compile them - in unconditionally with DP264; setup_arch knows how to cope. */ |