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[PATCH] AGP: Make gart iterator in K8 AGP driver SMP safe

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Ugh!

Cc: davej@redhat.com
Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Andi Kleen 2005-11-05 17:25:54 +01:00 committed by Linus Torvalds
parent 172efbb403
commit 1d2e6bd861
1 changed files with 3 additions and 2 deletions
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5
drivers/char/agp/amd64-agp.c
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@ -58,7 +58,6 @@ static struct pci_dev * hammers[MAX_HAMMER_GARTS];
static struct resource *aperture_resource;
static int __initdata agp_try_unsupported = 1;
static int gart_iterator;
#define for_each_nb() for(gart_iterator=0;gart_iterator<nr_garts;gart_iterator++)
static void flush_amd64_tlb(struct pci_dev *dev)
@ -72,6 +71,7 @@ static void flush_amd64_tlb(struct pci_dev *dev)
static void amd64_tlbflush(struct agp_memory *temp)
{
int gart_iterator;
for_each_nb()
flush_amd64_tlb(hammers[gart_iterator]);
}
@ -221,6 +221,7 @@ static struct aper_size_info_32 amd_8151_sizes[7] =
static int amd_8151_configure(void)
{
unsigned long gatt_bus = virt_to_gart(agp_bridge->gatt_table_real);
int gart_iterator;
/* Configure AGP regs in each x86-64 host bridge. */
for_each_nb() {
@ -234,7 +235,7 @@ static int amd_8151_configure(void)
static void amd64_cleanup(void)
{
u32 tmp;
int gart_iterator;
for_each_nb() {
/* disable gart translation */
pci_read_config_dword (hammers[gart_iterator], AMD64_GARTAPERTURECTL, &tmp);