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drm/ttm: recognize ARM64 arch in ioprot handler

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Return proper pgprot for ARM64. This is required for objects like
Nouveau fences to be mapped with expected coherency.

Signed-off-by: Alexandre Courbot <acourbot@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Alexandre Courbot 2015-07-01 17:32:29 +09:00 committed by Dave Airlie
parent 45b4b782e8
commit f135b978c2
1 changed files with 2 additions and 1 deletions
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3
drivers/gpu/drm/ttm/ttm_bo_util.c
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@ -490,7 +490,8 @@ pgprot_t ttm_io_prot(uint32_t caching_flags, pgprot_t tmp)
else if (boot_cpu_data.x86 > 3)
tmp = pgprot_noncached(tmp);
#endif
#if defined(__ia64__) || defined(__arm__) || defined(__powerpc__)
#if defined(__ia64__) || defined(__arm__) || defined(__aarch64__) || \
defined(__powerpc__)
if (caching_flags & TTM_PL_FLAG_WC)
tmp = pgprot_writecombine(tmp);
else