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| author | Michel Dänzer <michel.daenzer@amd.com> | 2014-11-27 18:00:54 +0900 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2014-12-02 15:45:32 -0500 |
| commit | a08b588e4199e4200d26027ffcdf3ab2fa906412 (patch) | |
| tree | 5522b9001596e45c9778b2c4c325e3e62d91cdb5 | |
| parent | 86b276385c6a986872e4cd144f5940b156053c3f (diff) | |
| download | linux-a08b588e4199e4200d26027ffcdf3ab2fa906412.tar.bz2 | |
drm/radeon: Ignore RADEON_GEM_GTT_WC on 32-bit x86
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84627
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_object.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 99a960a4f302..4c0d786d5c7a 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -213,6 +213,13 @@ int radeon_bo_create(struct radeon_device *rdev, if (!(rdev->flags & RADEON_IS_PCIE)) bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC); +#ifdef CONFIG_X86_32 + /* XXX: Write-combined CPU mappings of GTT seem broken on 32-bit + * See https://bugs.freedesktop.org/show_bug.cgi?id=84627 + */ + bo->flags &= ~RADEON_GEM_GTT_WC; +#endif + radeon_ttm_placement_from_domain(bo, domain); /* Kernel allocation are uninterruptible */ down_read(&rdev->pm.mclk_lock); |