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Commit 4b0e4e4a authored by Dave Airlie's avatar Dave Airlie Committed by Alex Deucher
Browse files

drm: add helper to check for wc memory support 



Reviewed-by: default avatarChristian König <christian.koenig@amd.com>
Reviewed-by: default avatarMichel Dänzer <michel.daenzer@amd.com>
Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
Signed-off-by: default avatarOded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent ad32152e

include/drm/drm_cache.h

+9 −0
Original line number Diff line number Diff line
@@ -35,4 +35,13 @@ 


void drm_clflush_pages(struct page *pages[], unsigned long num_pages);



static inline bool drm_arch_can_wc_memory(void)

{

#if defined(CONFIG_PPC) && !defined(CONFIG_NOT_COHERENT_CACHE)

	return false;

#else

	return true;

#endif

}



#endif