linux-kernel - [PATCH 2/2] drm: Remove unneeded dma sync in ATI pcigart alloc

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Message-Id: <20080420002746.DDF2EDE36E@ozlabs.org>
Date:	Sun, 20 Apr 2008 10:26:31 +1000
From:	Benjamin Herrenschmidt <benh@...nel.crashing.org>
To:	David Airlie <airlied@...ux.ie>
CC:	<linux-kernel@...r.kernel.org>, <stevewin@...ibm.com>
Subject: [PATCH 2/2] drm: Remove unneeded dma sync in ATI pcigart alloc

Now that the ATI pcigart code uses dma_alloc_coherent, we don't need
the dma_sync_single_for_device() that we used to have here.

Signed-off-by: Benjamin Herrenschmidt <benh@...nel.crashing.org>
---

Probably not stable material as it won't hurt not to remove it.

 drivers/char/drm/ati_pcigart.c |    7 -------
 1 file changed, 7 deletions(-)

--- linux-work.orig/drivers/char/drm/ati_pcigart.c	2008-04-19 16:52:23.000000000 +1000
+++ linux-work/drivers/char/drm/ati_pcigart.c	2008-04-19 16:54:00.000000000 +1000
@@ -167,13 +167,6 @@ int drm_ati_pcigart_init(struct drm_devi
 			page_base += ATI_PCIGART_PAGE_SIZE;
 		}
 	}
-
-	if (gart_info->gart_table_location == DRM_ATI_GART_MAIN)
-		dma_sync_single_for_device(&dev->pdev->dev,
-					   bus_address,
-					   max_pages * sizeof(u32),
-					   PCI_DMA_TODEVICE);
-
 	ret = 1;
 
 #if defined(__i386__) || defined(__x86_64__)
--
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