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Revert "gpu/drm, x86, PAT: PAT support for io_mapping_*"

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This reverts commit 17581ad812.

Sitsofe Wheeler reported that /dev/dri/card0 is MIA on his EeePC 900
and bisected it to this commit.

Graphics card is an i915 in an EeePC 900:

 00:02.0 VGA compatible controller [0300]:
   Intel Corporation Mobile 915GM/GMS/910GML
     Express Graphics Controller [8086:2592] (rev 04)

( Most likely the ioremap() of the driver failed and hence the card
  did not initialize. )

Reported-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Bisected-by: Sitsofe Wheeler <sitsofe@yahoo.com>
Cc: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com>
Cc: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Ingo Molnar
2009-03-01 12:32:08 +01:00
parent ecc25fbd6b
commit f5c1aa1537
3 changed files with 5 additions and 50 deletions
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5
arch/x86/include/asm/iomap.h
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@@ -24,10 +24,7 @@
#include <asm/tlbflush.h>
int
reserve_io_memtype_wc(u64 base, unsigned long size, pgprot_t *prot);
void
free_io_memtype(u64 base, unsigned long size);
is_io_mapping_possible(resource_size_t base, unsigned long size);
void *
iomap_atomic_prot_pfn(unsigned long pfn, enum km_type type, pgprot_t prot);