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authorThomas Gleixner <tglx@linutronix.de>2007-10-11 11:17:12 +0200
committerThomas Gleixner <tglx@linutronix.de>2007-10-11 11:17:12 +0200
commitf68c065491ceda1ad00f8dc493e274a79b8c2ba4 (patch)
treecff56e1483deb0f96d3a001845e8db3f0f2d6b0b /arch/x86_64
parent7648b1330c335601b7c09c25f77a03cda128fcab (diff)
downloadlinux-linaro-stable-f68c065491ceda1ad00f8dc493e274a79b8c2ba4.tar.gz
x86_64: move pci
Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/Makefile2
-rw-r--r--arch/x86_64/pci/Makefile5
-rw-r--r--arch/x86_64/pci/Makefile_6427
-rw-r--r--arch/x86_64/pci/k8-bus_64.c83
-rw-r--r--arch/x86_64/pci/mmconfig_64.c157
5 files changed, 1 insertions, 273 deletions
diff --git a/arch/x86_64/Makefile b/arch/x86_64/Makefile
index d322592e38ab..c10c8233a893 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 b3e54c45d408..000000000000
--- 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 ${srctree}/arch/x86_64/pci/Makefile_64
-endif
diff --git a/arch/x86_64/pci/Makefile_64 b/arch/x86_64/pci/Makefile_64
deleted file mode 100644
index 79b618b9e9d4..000000000000
--- a/arch/x86_64/pci/Makefile_64
+++ /dev/null
@@ -1,27 +0,0 @@
-#
-# Makefile for X86_64 specific PCI routines
-#
-# Reuse the i386 PCI subsystem
-#
-EXTRA_CFLAGS += -Iarch/x86/pci
-
-obj-y := i386.o
-obj-$(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 9cc813e29706..000000000000
--- a/arch/x86_64/pci/k8-bus_64.c
+++ /dev/null
@@ -1,83 +0,0 @@
-#include <linux/init.h>
-#include <linux/pci.h>
-#include <asm/mpspec.h>
-#include <linux/cpumask.h>
-
-/*
- * 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 4095e4d66a1d..000000000000
--- 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 <linux/pci.h>
-#include <linux/init.h>
-#include <linux/acpi.h>
-#include <linux/bitmap.h>
-#include <asm/e820.h>
-
-#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;
-}