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| author | Jerome Glisse <jglisse@redhat.com> | 2010-04-20 19:43:34 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-04-23 07:59:18 +0400 |
| commit | 61cf059325a30995a78c5001db2ed2a8ab1d4c36 (patch) | |
| tree | 0c674f3252032a780e9496c466c7fce2c1b084e0 /drivers/char/agp/amd64-agp.c | |
| parent | 2d2ef822758e3f5da59c40a392d0c6d89394d4b4 (diff) | |
| download | linux-61cf059325a30995a78c5001db2ed2a8ab1d4c36.tar.xz | |
agp: use scratch page on memory remove and at GATT creation V4
Convert most AGP chipset to use scratch page as default entries.
This help avoiding GPU querying 0 address and trigger computer
fault. With KMS and memory manager we bind/unbind AGP memory
constantly and it seems that some GPU are still doing AGP
traffic even after GPU report being idle with the memory segment.
Tested (radeon GPU KMS + Xorg + compiz + glxgears + quake3) on :
- SIS 1039:0001 & 1039:0003
- Intel 865 8086:2571
Compile tested for other bridges
V2 enable scratch page on uninorth
V3 fix unbound check in uninorth insert memory (Michel Dänzer)
V4 rebase on top of drm-next branch with the lastest intel AGP
changeset (stable should use version V3 of the patch)
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Michel Dänzer <michel@daenzer.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/char/agp/amd64-agp.c')
| -rw-r--r-- | drivers/char/agp/amd64-agp.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c index fd50ead59c79..73703b115cd2 100644 --- a/drivers/char/agp/amd64-agp.c +++ b/drivers/char/agp/amd64-agp.c @@ -210,6 +210,7 @@ static const struct agp_bridge_driver amd_8151_driver = { .aperture_sizes = amd_8151_sizes, .size_type = U32_APER_SIZE, .num_aperture_sizes = 7, + .needs_scratch_page = true, .configure = amd_8151_configure, .fetch_size = amd64_fetch_size, .cleanup = amd64_cleanup, |