From: Michel Dänzer michel.daenzer@amd.com
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84627 Signed-off-by: Michel Dänzer michel.daenzer@amd.com --- drivers/gpu/drm/radeon/radeon_object.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c index 33e6c7a..d4f472b 100644 --- a/drivers/gpu/drm/radeon/radeon_object.c +++ b/drivers/gpu/drm/radeon/radeon_object.c @@ -233,6 +233,13 @@ 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);