From f68c065491ceda1ad00f8dc493e274a79b8c2ba4 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Thu, 11 Oct 2007 11:17:12 +0200 Subject: x86_64: move pci Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar --- arch/x86_64/Makefile | 2 +- arch/x86_64/pci/Makefile | 5 -- arch/x86_64/pci/Makefile_64 | 27 -------- arch/x86_64/pci/k8-bus_64.c | 83 ---------------------- arch/x86_64/pci/mmconfig_64.c | 157 ------------------------------------------ 5 files changed, 1 insertion(+), 273 deletions(-) delete mode 100644 arch/x86_64/pci/Makefile delete mode 100644 arch/x86_64/pci/Makefile_64 delete mode 100644 arch/x86_64/pci/k8-bus_64.c delete mode 100644 arch/x86_64/pci/mmconfig_64.c (limited to 'arch/x86_64') diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile index d322592e38a..c10c8233a89 100644 --- a/arch/x86_64/Makefile +++ b/arch/x86_64/Makefile @@ -79,7 +79,7 @@ core-y += arch/x86_64/kernel/ \ arch/x86/crypto/ \ arch/x86/vdso/ core-$(CONFIG_IA32_EMULATION) += arch/x86_64/ia32/ -drivers-$(CONFIG_PCI) += arch/x86_64/pci/ +drivers-$(CONFIG_PCI) += arch/x86/pci/ drivers-$(CONFIG_OPROFILE) += arch/x86/oprofile/ boot := arch/x86_64/boot diff --git a/arch/x86_64/pci/Makefile b/arch/x86_64/pci/Makefile deleted file mode 100644 index b3e54c45d40..00000000000 --- a/arch/x86_64/pci/Makefile +++ /dev/null @@ -1,5 +0,0 @@ -ifeq ($(CONFIG_X86_32),y) -include ${srctree}/arch/x86/pci/Makefile_32 -else -include ${srctree}/arch/x86_64/pci/Makefile_64 -endif diff --git a/arch/x86_64/pci/Makefile_64 b/arch/x86_64/pci/Makefile_64 deleted file mode 100644 index 79b618b9e9d..00000000000 --- a/arch/x86_64/pci/Makefile_64 +++ /dev/null @@ -1,27 +0,0 @@ -# -# Makefile for X86_64 specific PCI routines -# -# Reuse the i386 PCI subsystem -# -EXTRA_CFLAGS += -Iarch/x86/pci - -obj-y := i386.o -obj-$(CONFIG_PCI_DIRECT)+= direct.o -obj-y += fixup.o init.o -obj-$(CONFIG_ACPI) += acpi.o -obj-y += legacy.o irq.o common.o early.o -# mmconfig has a 64bit special -obj-$(CONFIG_PCI_MMCONFIG) += mmconfig_64.o direct.o mmconfig-shared.o - -obj-$(CONFIG_NUMA) += k8-bus_64.o - -direct-y += ../../x86/pci/direct.o -acpi-y += ../../x86/pci/acpi.o -legacy-y += ../../x86/pci/legacy.o -irq-y += ../../x86/pci/irq.o -common-y += ../../x86/pci/common.o -fixup-y += ../../x86/pci/fixup.o -i386-y += ../../x86/pci/i386.o -init-y += ../../x86/pci/init.o -early-y += ../../x86/pci/early.o -mmconfig-shared-y += ../../x86/pci/mmconfig-shared.o diff --git a/arch/x86_64/pci/k8-bus_64.c b/arch/x86_64/pci/k8-bus_64.c deleted file mode 100644 index 9cc813e2970..00000000000 --- a/arch/x86_64/pci/k8-bus_64.c +++ /dev/null @@ -1,83 +0,0 @@ -#include -#include -#include -#include - -/* - * This discovers the pcibus <-> node mapping on AMD K8. - * - * RED-PEN need to call this again on PCI hotplug - * RED-PEN empty cpus get reported wrong - */ - -#define NODE_ID_REGISTER 0x60 -#define NODE_ID(dword) (dword & 0x07) -#define LDT_BUS_NUMBER_REGISTER_0 0x94 -#define LDT_BUS_NUMBER_REGISTER_1 0xB4 -#define LDT_BUS_NUMBER_REGISTER_2 0xD4 -#define NR_LDT_BUS_NUMBER_REGISTERS 3 -#define SECONDARY_LDT_BUS_NUMBER(dword) ((dword >> 8) & 0xFF) -#define SUBORDINATE_LDT_BUS_NUMBER(dword) ((dword >> 16) & 0xFF) -#define PCI_DEVICE_ID_K8HTCONFIG 0x1100 - -/** - * fill_mp_bus_to_cpumask() - * fills the mp_bus_to_cpumask array based according to the LDT Bus Number - * Registers found in the K8 northbridge - */ -__init static int -fill_mp_bus_to_cpumask(void) -{ - struct pci_dev *nb_dev = NULL; - int i, j; - u32 ldtbus, nid; - static int lbnr[3] = { - LDT_BUS_NUMBER_REGISTER_0, - LDT_BUS_NUMBER_REGISTER_1, - LDT_BUS_NUMBER_REGISTER_2 - }; - - while ((nb_dev = pci_get_device(PCI_VENDOR_ID_AMD, - PCI_DEVICE_ID_K8HTCONFIG, nb_dev))) { - pci_read_config_dword(nb_dev, NODE_ID_REGISTER, &nid); - - for (i = 0; i < NR_LDT_BUS_NUMBER_REGISTERS; i++) { - pci_read_config_dword(nb_dev, lbnr[i], &ldtbus); - /* - * if there are no busses hanging off of the current - * ldt link then both the secondary and subordinate - * bus number fields are set to 0. - * - * RED-PEN - * This is slightly broken because it assumes - * HT node IDs == Linux node ids, which is not always - * true. However it is probably mostly true. - */ - if (!(SECONDARY_LDT_BUS_NUMBER(ldtbus) == 0 - && SUBORDINATE_LDT_BUS_NUMBER(ldtbus) == 0)) { - for (j = SECONDARY_LDT_BUS_NUMBER(ldtbus); - j <= SUBORDINATE_LDT_BUS_NUMBER(ldtbus); - j++) { - struct pci_bus *bus; - struct pci_sysdata *sd; - - long node = NODE_ID(nid); - /* Algorithm a bit dumb, but - it shouldn't matter here */ - bus = pci_find_bus(0, j); - if (!bus) - continue; - if (!node_online(node)) - node = 0; - - sd = bus->sysdata; - sd->node = node; - } - } - } - } - - return 0; -} - -fs_initcall(fill_mp_bus_to_cpumask); diff --git a/arch/x86_64/pci/mmconfig_64.c b/arch/x86_64/pci/mmconfig_64.c deleted file mode 100644 index 4095e4d66a1..00000000000 --- a/arch/x86_64/pci/mmconfig_64.c +++ /dev/null @@ -1,157 +0,0 @@ -/* - * mmconfig.c - Low-level direct PCI config space access via MMCONFIG - * - * This is an 64bit optimized version that always keeps the full mmconfig - * space mapped. This allows lockless config space operation. - */ - -#include -#include -#include -#include -#include - -#include "pci.h" - -/* Static virtual mapping of the MMCONFIG aperture */ -struct mmcfg_virt { - struct acpi_mcfg_allocation *cfg; - char __iomem *virt; -}; -static struct mmcfg_virt *pci_mmcfg_virt; - -static char __iomem *get_virt(unsigned int seg, unsigned bus) -{ - struct acpi_mcfg_allocation *cfg; - int cfg_num; - - for (cfg_num = 0; cfg_num < pci_mmcfg_config_num; cfg_num++) { - cfg = pci_mmcfg_virt[cfg_num].cfg; - if (cfg->pci_segment == seg && - (cfg->start_bus_number <= bus) && - (cfg->end_bus_number >= bus)) - return pci_mmcfg_virt[cfg_num].virt; - } - - /* Fall back to type 0 */ - return NULL; -} - -static char __iomem *pci_dev_base(unsigned int seg, unsigned int bus, unsigned int devfn) -{ - char __iomem *addr; - if (seg == 0 && bus < PCI_MMCFG_MAX_CHECK_BUS && - test_bit(32*bus + PCI_SLOT(devfn), pci_mmcfg_fallback_slots)) - return NULL; - addr = get_virt(seg, bus); - if (!addr) - return NULL; - return addr + ((bus << 20) | (devfn << 12)); -} - -static int pci_mmcfg_read(unsigned int seg, unsigned int bus, - unsigned int devfn, int reg, int len, u32 *value) -{ - char __iomem *addr; - - /* Why do we have this when nobody checks it. How about a BUG()!? -AK */ - if (unlikely((bus > 255) || (devfn > 255) || (reg > 4095))) { - *value = -1; - return -EINVAL; - } - - addr = pci_dev_base(seg, bus, devfn); - if (!addr) - return pci_conf1_read(seg,bus,devfn,reg,len,value); - - switch (len) { - case 1: - *value = mmio_config_readb(addr + reg); - break; - case 2: - *value = mmio_config_readw(addr + reg); - break; - case 4: - *value = mmio_config_readl(addr + reg); - break; - } - - return 0; -} - -static int pci_mmcfg_write(unsigned int seg, unsigned int bus, - unsigned int devfn, int reg, int len, u32 value) -{ - char __iomem *addr; - - /* Why do we have this when nobody checks it. How about a BUG()!? -AK */ - if (unlikely((bus > 255) || (devfn > 255) || (reg > 4095))) - return -EINVAL; - - addr = pci_dev_base(seg, bus, devfn); - if (!addr) - return pci_conf1_write(seg,bus,devfn,reg,len,value); - - switch (len) { - case 1: - mmio_config_writeb(addr + reg, value); - break; - case 2: - mmio_config_writew(addr + reg, value); - break; - case 4: - mmio_config_writel(addr + reg, value); - break; - } - - return 0; -} - -static struct pci_raw_ops pci_mmcfg = { - .read = pci_mmcfg_read, - .write = pci_mmcfg_write, -}; - -static void __iomem * __init mcfg_ioremap(struct acpi_mcfg_allocation *cfg) -{ - void __iomem *addr; - u32 size; - - size = (cfg->end_bus_number + 1) << 20; - addr = ioremap_nocache(cfg->address, size); - if (addr) { - printk(KERN_INFO "PCI: Using MMCONFIG at %Lx - %Lx\n", - cfg->address, cfg->address + size - 1); - } - return addr; -} - -int __init pci_mmcfg_arch_reachable(unsigned int seg, unsigned int bus, - unsigned int devfn) -{ - return pci_dev_base(seg, bus, devfn) != NULL; -} - -int __init pci_mmcfg_arch_init(void) -{ - int i; - pci_mmcfg_virt = kmalloc(sizeof(*pci_mmcfg_virt) * - pci_mmcfg_config_num, GFP_KERNEL); - if (pci_mmcfg_virt == NULL) { - printk(KERN_ERR "PCI: Can not allocate memory for mmconfig structures\n"); - return 0; - } - - for (i = 0; i < pci_mmcfg_config_num; ++i) { - pci_mmcfg_virt[i].cfg = &pci_mmcfg_config[i]; - pci_mmcfg_virt[i].virt = mcfg_ioremap(&pci_mmcfg_config[i]); - if (!pci_mmcfg_virt[i].virt) { - printk(KERN_ERR "PCI: Cannot map mmconfig aperture for " - "segment %d\n", - pci_mmcfg_config[i].pci_segment); - return 0; - } - } - raw_pci_ops = &pci_mmcfg; - return 1; -} -- cgit v1.2.3