Module Name: src
Committed By: riastradh
Date: Sat Jul 30 17:12:39 UTC 2022
Modified Files:
src/sys/external/bsd/drm2/dist/drm/amd/amdgpu: amdgpu_gart.c
Log Message:
amdgpu: Make sure to bus_dmamap_sync before using zero'd dummy page.
To generate a diff of this commit:
cvs rdiff -u -r1.9 -r1.10 \
src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_gart.c
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_gart.c
diff -u src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_gart.c:1.9 src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_gart.c:1.10
--- src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_gart.c:1.9 Sat Jul 30 16:55:00 2022
+++ src/sys/external/bsd/drm2/dist/drm/amd/amdgpu/amdgpu_gart.c Sat Jul 30 17:12:39 2022
@@ -1,4 +1,4 @@
-/* $NetBSD: amdgpu_gart.c,v 1.9 2022/07/30 16:55:00 riastradh Exp $ */
+/* $NetBSD: amdgpu_gart.c,v 1.10 2022/07/30 17:12:39 riastradh Exp $ */
/*
* Copyright 2008 Advanced Micro Devices, Inc.
@@ -29,7 +29,7 @@
*/
#include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: amdgpu_gart.c,v 1.9 2022/07/30 16:55:00 riastradh Exp $");
+__KERNEL_RCSID(0, "$NetBSD: amdgpu_gart.c,v 1.10 2022/07/30 17:12:39 riastradh Exp $");
#include <linux/pci.h>
#include <linux/vmalloc.h>
@@ -105,6 +105,9 @@ static int amdgpu_gart_dummy_page_init(s
if (error)
goto fail2;
+ bus_dmamap_sync(adev->ddev->dmat, adev->dummy_page_map, 0, PAGE_SIZE,
+ BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
+
/* Success! */
adev->dummy_page_addr = adev->dummy_page_map->dm_segs[0].ds_addr;
return 0;
