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authorGreg Kroah-Hartman <gregkh@suse.de>2005-06-23 17:35:56 -0700
committerGreg Kroah-Hartman <gregkh@suse.de>2005-06-27 21:52:47 -0700
commit545493917dc90298e1c38f018ad893f5518928e7 (patch)
tree1c809616d3113785c0f7dd3039ea3b05c99c6440 /arch/i386/pci
parentd18c3db58bc544fce6662ca7edba616ca9788a70 (diff)
downloadop-kernel-dev-545493917dc90298e1c38f018ad893f5518928e7.zip
op-kernel-dev-545493917dc90298e1c38f018ad893f5518928e7.tar.gz
[PATCH] PCI: add proper MCFG table parsing to ACPI core.
This patch is the first step in properly handling the MCFG PCI table. It defines the structures properly, and saves off the table so that the pci mmconfig code can access it. It moves the parsing of the table a little later in the boot process, but still before the information is needed. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'arch/i386/pci')
-rw-r--r--arch/i386/pci/mmconfig.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/arch/i386/pci/mmconfig.c b/arch/i386/pci/mmconfig.c
index 021a50a..5fbaa91 100644
--- a/arch/i386/pci/mmconfig.c
+++ b/arch/i386/pci/mmconfig.c
@@ -11,11 +11,9 @@
#include <linux/pci.h>
#include <linux/init.h>
+#include <linux/acpi.h>
#include "pci.h"
-/* The physical address of the MMCONFIG aperture. Set from ACPI tables. */
-u32 pci_mmcfg_base_addr;
-
#define mmcfg_virt_addr ((void __iomem *) fix_to_virt(FIX_PCIE_MCFG))
/* The base address of the last MMCONFIG device accessed */
@@ -27,7 +25,7 @@ static u32 mmcfg_last_accessed_device;
static inline void pci_exp_set_dev_base(int bus, int devfn)
{
- u32 dev_base = pci_mmcfg_base_addr | (bus << 20) | (devfn << 12);
+ u32 dev_base = pci_mmcfg_config[0].base_address | (bus << 20) | (devfn << 12);
if (dev_base != mmcfg_last_accessed_device) {
mmcfg_last_accessed_device = dev_base;
set_fixmap_nocache(FIX_PCIE_MCFG, dev_base);
@@ -101,7 +99,11 @@ static int __init pci_mmcfg_init(void)
{
if ((pci_probe & PCI_PROBE_MMCONF) == 0)
goto out;
- if (!pci_mmcfg_base_addr)
+
+ acpi_table_parse(ACPI_MCFG, acpi_parse_mcfg);
+ if ((pci_mmcfg_config_num == 0) ||
+ (pci_mmcfg_config == NULL) ||
+ (pci_mmcfg_config[0].base_address == 0))
goto out;
/* Kludge for now. Don't use mmconfig on AMD systems because
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