[src/trunk]: src/sys/external/bsd/drm2/dist/drm/radeon Do a post-write DMA sy...

[riastradh <riastradh%NetBSD.org@localhost>]

details:   https://anonhg.NetBSD.org/src/rev/de3774e06d7f
branches:  trunk
changeset: 797437:de3774e06d7f
user:      riastradh <riastradh%NetBSD.org@localhost>
date:      Thu Jul 17 17:29:39 2014 +0000

description:
Do a post-write DMA sync pos-write, not a pre-write one.

diffstat:

 sys/external/bsd/drm2/dist/drm/radeon/radeon_gart.c |  2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diffs (12 lines):

diff -r 1bb9e56bdbef -r de3774e06d7f sys/external/bsd/drm2/dist/drm/radeon/radeon_gart.c
--- a/sys/external/bsd/drm2/dist/drm/radeon/radeon_gart.c       Thu Jul 17 17:19:42 2014 +0000
+++ b/sys/external/bsd/drm2/dist/drm/radeon/radeon_gart.c       Thu Jul 17 17:29:39 2014 +0000
@@ -275,7 +275,7 @@
        membar_sync();          /* XXX overkill */
        if (rdev->gart.rg_table_map != NULL)
                bus_dmamap_sync(rdev->ddev->dmat, rdev->gart.rg_table_map,
-                   gpu_pgstart*4, gpu_npages*4, BUS_DMASYNC_PREWRITE);
+                   gpu_pgstart*4, gpu_npages*4, BUS_DMASYNC_POSTWRITE);
        radeon_gart_tlb_flush(rdev);
 }
 #endif