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Commit 1b13fe6a authored by Borislav Petkov's avatar Borislav Petkov Committed by Ingo Molnar
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AGP: Warn when GATT memory cannot be set to UC 



This is one of those paranoid checks which should at least tell
us that something is about to go haywire after we've disabled
GART table walk probes which is done by default now on AMD.

Signed-off-by: default avatarBorislav Petkov <borislav.petkov@amd.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>
LKML-Reference: <1283531981-7495-4-git-send-email-bp@amd64.org>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
parent 260133ab

drivers/char/agp/generic.c

+3 −1
Original line number Original line Diff line number Diff line
@@ -984,7 +984,9 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge) 




	bridge->driver->cache_flush();

	bridge->driver->cache_flush();

#ifdef CONFIG_X86

#ifdef CONFIG_X86

	set_memory_uc((unsigned long)table, 1 << page_order);

	if (set_memory_uc((unsigned long)table, 1 << page_order))

		printk(KERN_WARNING "Could not set GATT table memory to UC!");



	bridge->gatt_table = (void *)table;

	bridge->gatt_table = (void *)table;

#else

#else

	bridge->gatt_table = ioremap_nocache(virt_to_phys(table),

	bridge->gatt_table = ioremap_nocache(virt_to_phys(table),