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Commit 93820498 authored by Michel Dänzer's avatar Michel Dänzer Committed by Alex Deucher
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drm/radeon: Only prompt for enabling PAT when we'd allow write-combining 



No use bothering users about this for whom we disable write-combining for
other reasons anyway.

Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Signed-off-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent a28bbd58

drivers/gpu/drm/radeon/radeon_object.c

+3 −2
Original line number Original line Diff line number Diff line
@@ -241,6 +241,7 @@ int radeon_bo_create(struct radeon_device *rdev, 
#warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \

#warning Please enable CONFIG_MTRR and CONFIG_X86_PAT for better performance \

	 thanks to write-combining

	 thanks to write-combining





	if (bo->flags & RADEON_GEM_GTT_WC)

		DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "

		DRM_INFO_ONCE("Please enable CONFIG_MTRR and CONFIG_X86_PAT for "

			      "better performance thanks to write-combining\n");

			      "better performance thanks to write-combining\n");

	bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC);

	bo->flags &= ~(RADEON_GEM_GTT_WC | RADEON_GEM_GTT_UC);