diff options
| author | Ingo Molnar <mingo@elte.hu> | 2009-03-01 12:32:08 +0100 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2009-03-01 12:47:49 +0100 |
| commit | f5c1aa1537be39d8b9bb5279b5881d81898fd3cd (patch) | |
| tree | 6c7fbfb902aaff55a8893c41e54145ef58d6dddc /include/linux | |
| parent | ecc25fbd6b9e07b33895c61ddf84006b00f55d99 (diff) | |
Revert "gpu/drm, x86, PAT: PAT support for io_mapping_*"
This reverts commit 17581ad812a9abb0182260374ef2e52d4a808a64.
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>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/io-mapping.h | 6 |
1 files changed, 2 insertions, 4 deletions
diff --git a/include/linux/io-mapping.h b/include/linux/io-mapping.h index f1ed66c4378..cbc2f0cd631 100644 --- a/include/linux/io-mapping.h +++ b/include/linux/io-mapping.h @@ -49,9 +49,8 @@ static inline struct io_mapping * io_mapping_create_wc(resource_size_t base, unsigned long size) { struct io_mapping *iomap; - pgprot_t prot; - if (!reserve_io_memtype_wc(base, size, &prot)) + if (!is_io_mapping_possible(base, size)) return NULL; iomap = kmalloc(sizeof(*iomap), GFP_KERNEL); @@ -60,14 +59,13 @@ io_mapping_create_wc(resource_size_t base, unsigned long size) iomap->base = base; iomap->size = size; - iomap->prot = prot; + iomap->prot = pgprot_writecombine(__pgprot(__PAGE_KERNEL)); return iomap; } static inline void io_mapping_free(struct io_mapping *mapping) { - free_io_memtype(mapping->base, mapping->size); kfree(mapping); } |