drm/omap: Use writecombine for descriptors

Use writecombine for descriptor and PAT programming memory.

Signed-off-by: Andy Gross <andy.gross@ti.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/staging/omapdrm/omap_dmm_tiler.c b/drivers/staging/omapdrm/omap_dmm_tiler.c
index fda9efc..7c19c5c 100644 (file)
--- a/drivers/staging/omapdrm/omap_dmm_tiler.c
+++ b/drivers/staging/omapdrm/omap_dmm_tiler.c
@@ -525,7 +525,7 @@ static int omap_dmm_remove(struct platform_device *dev)
 
                kfree(omap_dmm->engines);
                if (omap_dmm->refill_va)
-                       dma_free_coherent(omap_dmm->dev,
+                       dma_free_writecombine(omap_dmm->dev,
                                REFILL_BUFFER_SIZE * omap_dmm->num_engines,
                                omap_dmm->refill_va,
                                omap_dmm->refill_pa);
@@ -633,7 +633,7 @@ static int omap_dmm_probe(struct platform_device *dev)
        omap_dmm->dummy_pa = page_to_phys(omap_dmm->dummy_page);
 
        /* alloc refill memory */
-       omap_dmm->refill_va = dma_alloc_coherent(&dev->dev,
+       omap_dmm->refill_va = dma_alloc_writecombine(&dev->dev,
                                REFILL_BUFFER_SIZE * omap_dmm->num_engines,
                                &omap_dmm->refill_pa, GFP_KERNEL);
        if (!omap_dmm->refill_va) {