diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/x86/pci/common.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/x86/pci/common.c | 740 |
1 files changed, 0 insertions, 740 deletions
diff --git a/ANDROID_3.4.5/arch/x86/pci/common.c b/ANDROID_3.4.5/arch/x86/pci/common.c deleted file mode 100644 index 323481e0..00000000 --- a/ANDROID_3.4.5/arch/x86/pci/common.c +++ /dev/null @@ -1,740 +0,0 @@ -/* - * Low-Level PCI Support for PC - * - * (c) 1999--2000 Martin Mares <mj@ucw.cz> - */ - -#include <linux/sched.h> -#include <linux/pci.h> -#include <linux/ioport.h> -#include <linux/init.h> -#include <linux/dmi.h> -#include <linux/slab.h> - -#include <asm/acpi.h> -#include <asm/segment.h> -#include <asm/io.h> -#include <asm/smp.h> -#include <asm/pci_x86.h> - -unsigned int pci_probe = PCI_PROBE_BIOS | PCI_PROBE_CONF1 | PCI_PROBE_CONF2 | - PCI_PROBE_MMCONF; - -unsigned int pci_early_dump_regs; -static int pci_bf_sort; -static int smbios_type_b1_flag; -int pci_routeirq; -int noioapicquirk; -#ifdef CONFIG_X86_REROUTE_FOR_BROKEN_BOOT_IRQS -int noioapicreroute = 0; -#else -int noioapicreroute = 1; -#endif -int pcibios_last_bus = -1; -unsigned long pirq_table_addr; -struct pci_bus *pci_root_bus; -const struct pci_raw_ops *__read_mostly raw_pci_ops; -const struct pci_raw_ops *__read_mostly raw_pci_ext_ops; - -int raw_pci_read(unsigned int domain, unsigned int bus, unsigned int devfn, - int reg, int len, u32 *val) -{ - if (domain == 0 && reg < 256 && raw_pci_ops) - return raw_pci_ops->read(domain, bus, devfn, reg, len, val); - if (raw_pci_ext_ops) - return raw_pci_ext_ops->read(domain, bus, devfn, reg, len, val); - return -EINVAL; -} - -int raw_pci_write(unsigned int domain, unsigned int bus, unsigned int devfn, - int reg, int len, u32 val) -{ - if (domain == 0 && reg < 256 && raw_pci_ops) - return raw_pci_ops->write(domain, bus, devfn, reg, len, val); - if (raw_pci_ext_ops) - return raw_pci_ext_ops->write(domain, bus, devfn, reg, len, val); - return -EINVAL; -} - -static int pci_read(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 *value) -{ - return raw_pci_read(pci_domain_nr(bus), bus->number, - devfn, where, size, value); -} - -static int pci_write(struct pci_bus *bus, unsigned int devfn, int where, int size, u32 value) -{ - return raw_pci_write(pci_domain_nr(bus), bus->number, - devfn, where, size, value); -} - -struct pci_ops pci_root_ops = { - .read = pci_read, - .write = pci_write, -}; - -/* - * This interrupt-safe spinlock protects all accesses to PCI - * configuration space. - */ -DEFINE_RAW_SPINLOCK(pci_config_lock); - -static int __devinit can_skip_ioresource_align(const struct dmi_system_id *d) -{ - pci_probe |= PCI_CAN_SKIP_ISA_ALIGN; - printk(KERN_INFO "PCI: %s detected, can skip ISA alignment\n", d->ident); - return 0; -} - -static const struct dmi_system_id can_skip_pciprobe_dmi_table[] __devinitconst = { -/* - * Systems where PCI IO resource ISA alignment can be skipped - * when the ISA enable bit in the bridge control is not set - */ - { - .callback = can_skip_ioresource_align, - .ident = "IBM System x3800", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "IBM"), - DMI_MATCH(DMI_PRODUCT_NAME, "x3800"), - }, - }, - { - .callback = can_skip_ioresource_align, - .ident = "IBM System x3850", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "IBM"), - DMI_MATCH(DMI_PRODUCT_NAME, "x3850"), - }, - }, - { - .callback = can_skip_ioresource_align, - .ident = "IBM System x3950", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "IBM"), - DMI_MATCH(DMI_PRODUCT_NAME, "x3950"), - }, - }, - {} -}; - -void __init dmi_check_skip_isa_align(void) -{ - dmi_check_system(can_skip_pciprobe_dmi_table); -} - -static void __devinit pcibios_fixup_device_resources(struct pci_dev *dev) -{ - struct resource *rom_r = &dev->resource[PCI_ROM_RESOURCE]; - struct resource *bar_r; - int bar; - - if (pci_probe & PCI_NOASSIGN_BARS) { - /* - * If the BIOS did not assign the BAR, zero out the - * resource so the kernel doesn't attmept to assign - * it later on in pci_assign_unassigned_resources - */ - for (bar = 0; bar <= PCI_STD_RESOURCE_END; bar++) { - bar_r = &dev->resource[bar]; - if (bar_r->start == 0 && bar_r->end != 0) { - bar_r->flags = 0; - bar_r->end = 0; - } - } - } - - if (pci_probe & PCI_NOASSIGN_ROMS) { - if (rom_r->parent) - return; - if (rom_r->start) { - /* we deal with BIOS assigned ROM later */ - return; - } - rom_r->start = rom_r->end = rom_r->flags = 0; - } -} - -/* - * Called after each bus is probed, but before its children - * are examined. - */ - -void __devinit pcibios_fixup_bus(struct pci_bus *b) -{ - struct pci_dev *dev; - - pci_read_bridge_bases(b); - list_for_each_entry(dev, &b->devices, bus_list) - pcibios_fixup_device_resources(dev); -} - -/* - * Only use DMI information to set this if nothing was passed - * on the kernel command line (which was parsed earlier). - */ - -static int __devinit set_bf_sort(const struct dmi_system_id *d) -{ - if (pci_bf_sort == pci_bf_sort_default) { - pci_bf_sort = pci_dmi_bf; - printk(KERN_INFO "PCI: %s detected, enabling pci=bfsort.\n", d->ident); - } - return 0; -} - -static void __devinit read_dmi_type_b1(const struct dmi_header *dm, - void *private_data) -{ - u8 *d = (u8 *)dm + 4; - - if (dm->type != 0xB1) - return; - switch (((*(u32 *)d) >> 9) & 0x03) { - case 0x00: - printk(KERN_INFO "dmi type 0xB1 record - unknown flag\n"); - break; - case 0x01: /* set pci=bfsort */ - smbios_type_b1_flag = 1; - break; - case 0x02: /* do not set pci=bfsort */ - smbios_type_b1_flag = 2; - break; - default: - break; - } -} - -static int __devinit find_sort_method(const struct dmi_system_id *d) -{ - dmi_walk(read_dmi_type_b1, NULL); - - if (smbios_type_b1_flag == 1) { - set_bf_sort(d); - return 0; - } - return -1; -} - -/* - * Enable renumbering of PCI bus# ranges to reach all PCI busses (Cardbus) - */ -#ifdef __i386__ -static int __devinit assign_all_busses(const struct dmi_system_id *d) -{ - pci_probe |= PCI_ASSIGN_ALL_BUSSES; - printk(KERN_INFO "%s detected: enabling PCI bus# renumbering" - " (pci=assign-busses)\n", d->ident); - return 0; -} -#endif - -static const struct dmi_system_id __devinitconst pciprobe_dmi_table[] = { -#ifdef __i386__ -/* - * Laptops which need pci=assign-busses to see Cardbus cards - */ - { - .callback = assign_all_busses, - .ident = "Samsung X20 Laptop", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Samsung Electronics"), - DMI_MATCH(DMI_PRODUCT_NAME, "SX20S"), - }, - }, -#endif /* __i386__ */ - { - .callback = set_bf_sort, - .ident = "Dell PowerEdge 1950", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell"), - DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1950"), - }, - }, - { - .callback = set_bf_sort, - .ident = "Dell PowerEdge 1955", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell"), - DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 1955"), - }, - }, - { - .callback = set_bf_sort, - .ident = "Dell PowerEdge 2900", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell"), - DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2900"), - }, - }, - { - .callback = set_bf_sort, - .ident = "Dell PowerEdge 2950", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell"), - DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge 2950"), - }, - }, - { - .callback = set_bf_sort, - .ident = "Dell PowerEdge R900", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell"), - DMI_MATCH(DMI_PRODUCT_NAME, "PowerEdge R900"), - }, - }, - { - .callback = find_sort_method, - .ident = "Dell System", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL20p G3", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL20p G3"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL20p G4", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL20p G4"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL30p G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL30p G1"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL25p G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL25p G1"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL35p G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL35p G1"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL45p G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL45p G1"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL45p G2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL45p G2"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL460c G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL460c G1"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL465c G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL465c G1"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL480c G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL480c G1"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant BL685c G1", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant BL685c G1"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant DL360", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL360"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant DL380", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL380"), - }, - }, -#ifdef __i386__ - { - .callback = assign_all_busses, - .ident = "Compaq EVO N800c", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "Compaq"), - DMI_MATCH(DMI_PRODUCT_NAME, "EVO N800c"), - }, - }, -#endif - { - .callback = set_bf_sort, - .ident = "HP ProLiant DL385 G2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL385 G2"), - }, - }, - { - .callback = set_bf_sort, - .ident = "HP ProLiant DL585 G2", - .matches = { - DMI_MATCH(DMI_SYS_VENDOR, "HP"), - DMI_MATCH(DMI_PRODUCT_NAME, "ProLiant DL585 G2"), - }, - }, - {} -}; - -void __init dmi_check_pciprobe(void) -{ - dmi_check_system(pciprobe_dmi_table); -} - -struct pci_bus * __devinit pcibios_scan_root(int busnum) -{ - LIST_HEAD(resources); - struct pci_bus *bus = NULL; - struct pci_sysdata *sd; - - while ((bus = pci_find_next_bus(bus)) != NULL) { - if (bus->number == busnum) { - /* Already scanned */ - return bus; - } - } - - /* Allocate per-root-bus (not per bus) arch-specific data. - * TODO: leak; this memory is never freed. - * It's arguable whether it's worth the trouble to care. - */ - sd = kzalloc(sizeof(*sd), GFP_KERNEL); - if (!sd) { - printk(KERN_ERR "PCI: OOM, not probing PCI bus %02x\n", busnum); - return NULL; - } - - sd->node = get_mp_bus_to_node(busnum); - - printk(KERN_DEBUG "PCI: Probing PCI hardware (bus %02x)\n", busnum); - x86_pci_root_bus_resources(busnum, &resources); - bus = pci_scan_root_bus(NULL, busnum, &pci_root_ops, sd, &resources); - if (!bus) { - pci_free_resource_list(&resources); - kfree(sd); - } - - return bus; -} -void __init pcibios_set_cache_line_size(void) -{ - struct cpuinfo_x86 *c = &boot_cpu_data; - - /* - * Set PCI cacheline size to that of the CPU if the CPU has reported it. - * (For older CPUs that don't support cpuid, we se it to 32 bytes - * It's also good for 386/486s (which actually have 16) - * as quite a few PCI devices do not support smaller values. - */ - if (c->x86_clflush_size > 0) { - pci_dfl_cache_line_size = c->x86_clflush_size >> 2; - printk(KERN_DEBUG "PCI: pci_cache_line_size set to %d bytes\n", - pci_dfl_cache_line_size << 2); - } else { - pci_dfl_cache_line_size = 32 >> 2; - printk(KERN_DEBUG "PCI: Unknown cacheline size. Setting to 32 bytes\n"); - } -} - -int __init pcibios_init(void) -{ - if (!raw_pci_ops) { - printk(KERN_WARNING "PCI: System does not support PCI\n"); - return 0; - } - - pcibios_set_cache_line_size(); - pcibios_resource_survey(); - - if (pci_bf_sort >= pci_force_bf) - pci_sort_breadthfirst(); - return 0; -} - -char * __devinit pcibios_setup(char *str) -{ - if (!strcmp(str, "off")) { - pci_probe = 0; - return NULL; - } else if (!strcmp(str, "bfsort")) { - pci_bf_sort = pci_force_bf; - return NULL; - } else if (!strcmp(str, "nobfsort")) { - pci_bf_sort = pci_force_nobf; - return NULL; - } -#ifdef CONFIG_PCI_BIOS - else if (!strcmp(str, "bios")) { - pci_probe = PCI_PROBE_BIOS; - return NULL; - } else if (!strcmp(str, "nobios")) { - pci_probe &= ~PCI_PROBE_BIOS; - return NULL; - } else if (!strcmp(str, "biosirq")) { - pci_probe |= PCI_BIOS_IRQ_SCAN; - return NULL; - } else if (!strncmp(str, "pirqaddr=", 9)) { - pirq_table_addr = simple_strtoul(str+9, NULL, 0); - return NULL; - } -#endif -#ifdef CONFIG_PCI_DIRECT - else if (!strcmp(str, "conf1")) { - pci_probe = PCI_PROBE_CONF1 | PCI_NO_CHECKS; - return NULL; - } - else if (!strcmp(str, "conf2")) { - pci_probe = PCI_PROBE_CONF2 | PCI_NO_CHECKS; - return NULL; - } -#endif -#ifdef CONFIG_PCI_MMCONFIG - else if (!strcmp(str, "nommconf")) { - pci_probe &= ~PCI_PROBE_MMCONF; - return NULL; - } - else if (!strcmp(str, "check_enable_amd_mmconf")) { - pci_probe |= PCI_CHECK_ENABLE_AMD_MMCONF; - return NULL; - } -#endif - else if (!strcmp(str, "noacpi")) { - acpi_noirq_set(); - return NULL; - } - else if (!strcmp(str, "noearly")) { - pci_probe |= PCI_PROBE_NOEARLY; - return NULL; - } -#ifndef CONFIG_X86_VISWS - else if (!strcmp(str, "usepirqmask")) { - pci_probe |= PCI_USE_PIRQ_MASK; - return NULL; - } else if (!strncmp(str, "irqmask=", 8)) { - pcibios_irq_mask = simple_strtol(str+8, NULL, 0); - return NULL; - } else if (!strncmp(str, "lastbus=", 8)) { - pcibios_last_bus = simple_strtol(str+8, NULL, 0); - return NULL; - } -#endif - else if (!strcmp(str, "rom")) { - pci_probe |= PCI_ASSIGN_ROMS; - return NULL; - } else if (!strcmp(str, "norom")) { - pci_probe |= PCI_NOASSIGN_ROMS; - return NULL; - } else if (!strcmp(str, "nobar")) { - pci_probe |= PCI_NOASSIGN_BARS; - return NULL; - } else if (!strcmp(str, "assign-busses")) { - pci_probe |= PCI_ASSIGN_ALL_BUSSES; - return NULL; - } else if (!strcmp(str, "use_crs")) { - pci_probe |= PCI_USE__CRS; - return NULL; - } else if (!strcmp(str, "nocrs")) { - pci_probe |= PCI_ROOT_NO_CRS; - return NULL; - } else if (!strcmp(str, "earlydump")) { - pci_early_dump_regs = 1; - return NULL; - } else if (!strcmp(str, "routeirq")) { - pci_routeirq = 1; - return NULL; - } else if (!strcmp(str, "skip_isa_align")) { - pci_probe |= PCI_CAN_SKIP_ISA_ALIGN; - return NULL; - } else if (!strcmp(str, "noioapicquirk")) { - noioapicquirk = 1; - return NULL; - } else if (!strcmp(str, "ioapicreroute")) { - if (noioapicreroute != -1) - noioapicreroute = 0; - return NULL; - } else if (!strcmp(str, "noioapicreroute")) { - if (noioapicreroute != -1) - noioapicreroute = 1; - return NULL; - } - return str; -} - -unsigned int pcibios_assign_all_busses(void) -{ - return (pci_probe & PCI_ASSIGN_ALL_BUSSES) ? 1 : 0; -} - -int pcibios_enable_device(struct pci_dev *dev, int mask) -{ - int err; - - if ((err = pci_enable_resources(dev, mask)) < 0) - return err; - - if (!pci_dev_msi_enabled(dev)) - return pcibios_enable_irq(dev); - return 0; -} - -void pcibios_disable_device (struct pci_dev *dev) -{ - if (!pci_dev_msi_enabled(dev) && pcibios_disable_irq) - pcibios_disable_irq(dev); -} - -int pci_ext_cfg_avail(struct pci_dev *dev) -{ - if (raw_pci_ext_ops) - return 1; - else - return 0; -} - -struct pci_bus * __devinit pci_scan_bus_on_node(int busno, struct pci_ops *ops, int node) -{ - LIST_HEAD(resources); - struct pci_bus *bus = NULL; - struct pci_sysdata *sd; - - /* - * Allocate per-root-bus (not per bus) arch-specific data. - * TODO: leak; this memory is never freed. - * It's arguable whether it's worth the trouble to care. - */ - sd = kzalloc(sizeof(*sd), GFP_KERNEL); - if (!sd) { - printk(KERN_ERR "PCI: OOM, skipping PCI bus %02x\n", busno); - return NULL; - } - sd->node = node; - x86_pci_root_bus_resources(busno, &resources); - bus = pci_scan_root_bus(NULL, busno, ops, sd, &resources); - if (!bus) { - pci_free_resource_list(&resources); - kfree(sd); - } - - return bus; -} - -struct pci_bus * __devinit pci_scan_bus_with_sysdata(int busno) -{ - return pci_scan_bus_on_node(busno, &pci_root_ops, -1); -} - -/* - * NUMA info for PCI busses - * - * Early arch code is responsible for filling in reasonable values here. - * A node id of "-1" means "use current node". In other words, if a bus - * has a -1 node id, it's not tightly coupled to any particular chunk - * of memory (as is the case on some Nehalem systems). - */ -#ifdef CONFIG_NUMA - -#define BUS_NR 256 - -#ifdef CONFIG_X86_64 - -static int mp_bus_to_node[BUS_NR] = { - [0 ... BUS_NR - 1] = -1 -}; - -void set_mp_bus_to_node(int busnum, int node) -{ - if (busnum >= 0 && busnum < BUS_NR) - mp_bus_to_node[busnum] = node; -} - -int get_mp_bus_to_node(int busnum) -{ - int node = -1; - - if (busnum < 0 || busnum > (BUS_NR - 1)) - return node; - - node = mp_bus_to_node[busnum]; - - /* - * let numa_node_id to decide it later in dma_alloc_pages - * if there is no ram on that node - */ - if (node != -1 && !node_online(node)) - node = -1; - - return node; -} - -#else /* CONFIG_X86_32 */ - -static int mp_bus_to_node[BUS_NR] = { - [0 ... BUS_NR - 1] = -1 -}; - -void set_mp_bus_to_node(int busnum, int node) -{ - if (busnum >= 0 && busnum < BUS_NR) - mp_bus_to_node[busnum] = (unsigned char) node; -} - -int get_mp_bus_to_node(int busnum) -{ - int node; - - if (busnum < 0 || busnum > (BUS_NR - 1)) - return 0; - node = mp_bus_to_node[busnum]; - return node; -} - -#endif /* CONFIG_X86_32 */ - -#endif /* CONFIG_NUMA */ |