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Commit e0f0754f authored by Dave Airlie's avatar Dave Airlie Committed by Dave Airlie
Browse files

drm: wbinvd is cache coherent. 



doing an ipi for the wbinvd case isn't necessary.

Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
parent e7d22bc3

drivers/gpu/drm/drm_cache.c

+2 −9
Original line number Diff line number Diff line
@@ -47,12 +47,6 @@ drm_clflush_page(struct page *page) 
}

#endif



static void

drm_clflush_ipi_handler(void *null)

{

	wbinvd();

}



void

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

{
@@ -68,9 +62,8 @@ drm_clflush_pages(struct page *pages[], unsigned long num_pages) 


		return;

	}

#endif



	if (on_each_cpu(drm_clflush_ipi_handler, NULL, 1) != 0)

		DRM_ERROR("Timed out waiting for cache flush.\n");

	wbinvd();

#endif

}

EXPORT_SYMBOL(drm_clflush_pages);