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Commit a08b588e authored by Michel Dänzer's avatar Michel Dänzer Committed by Alex Deucher
Browse files

drm/radeon: Ignore RADEON_GEM_GTT_WC on 32-bit x86 

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=84627


Signed-off-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 86b27638

drivers/gpu/drm/radeon/radeon_object.c

+7 −0
Original line number Diff line number Diff line
@@ -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);