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x86: Move PCI IO ECS code to x86/pci

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"Form follows function". Code is now where it belongs to.

Signed-off-by: Robert Richter <robert.richter@amd.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Robert Richter
2008-06-12 20:19:23 +02:00
committed by Ingo Molnar
parent 24bfdca7b7
commit 3a27dd1ce5
9 changed files with 43 additions and 31 deletions
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32
arch/x86/pci/amd_bus.c
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@@ -1,5 +1,9 @@
#include <linux/init.h>
#include <linux/pci.h>
#include "pci.h"
#ifdef CONFIG_X86_64
#include <asm/pci-direct.h>
#include <asm/mpspec.h>
#include <linux/cpumask.h>
@@ -526,3 +530,31 @@ static int __init early_fill_mp_bus_info(void)
}
postcore_initcall(early_fill_mp_bus_info);
#endif
/* common 32/64 bit code */
#define ENABLE_CF8_EXT_CFG (1ULL << 46)
static void enable_pci_io_ecs_per_cpu(void *unused)
{
u64 reg;
rdmsrl(MSR_AMD64_NB_CFG, reg);
if (!(reg & ENABLE_CF8_EXT_CFG)) {
reg |= ENABLE_CF8_EXT_CFG;
wrmsrl(MSR_AMD64_NB_CFG, reg);
}
}
static int __init enable_pci_io_ecs(void)
{
/* assume all cpus from fam10h have IO ECS */
if (boot_cpu_data.x86 < 0x10)
return 0;
on_each_cpu(enable_pci_io_ecs_per_cpu, NULL, 1, 1);
pci_probe |= PCI_HAS_IO_ECS;
return 0;
}
postcore_initcall(enable_pci_io_ecs);