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authorBorislav Petkov <borislav.petkov@amd.com>2010-09-03 12:39:41 -0400
committerIngo Molnar <mingo@elte.hu>2010-09-05 08:28:34 -0400
commit1b13fe6a6e9986dbc079cbb05090be75edbffa5d (patch)
treefeabf768d5ed72f9f89d8caeb1c95fe996904961
parent260133ab658bd2b80e07832a878e00405e19ff43 (diff)
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: Borislav 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: Ingo Molnar <mingo@elte.hu>
-rw-r--r--drivers/char/agp/generic.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index d2abf514398..64255cef8a7 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -984,7 +984,9 @@ int agp_generic_create_gatt_table(struct agp_bridge_data *bridge)
984 984
985 bridge->driver->cache_flush(); 985 bridge->driver->cache_flush();
986#ifdef CONFIG_X86 986#ifdef CONFIG_X86
987 set_memory_uc((unsigned long)table, 1 << page_order); 987 if (set_memory_uc((unsigned long)table, 1 << page_order))
988 printk(KERN_WARNING "Could not set GATT table memory to UC!");
989
988 bridge->gatt_table = (void *)table; 990 bridge->gatt_table = (void *)table;
989#else 991#else
990 bridge->gatt_table = ioremap_nocache(virt_to_phys(table), 992 bridge->gatt_table = ioremap_nocache(virt_to_phys(table),