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author | Jerome Glisse <jglisse@redhat.com> | 2010-03-09 14:45:12 (GMT) |
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committer | Dave Airlie <airlied@redhat.com> | 2010-04-06 01:21:11 (GMT) |
commit | 90aca4d2740255bd130ea71a91530b9920c70abe (patch) | |
tree | acf9b8a4353e6727cd6cba5b71caaf9f067e465d /drivers/gpu/drm/radeon/radeon_cs.c | |
parent | a2d07b7438f015a0349bc9af3c96a8164549bbc5 (diff) | |
download | linux-fsl-qoriq-90aca4d2740255bd130ea71a91530b9920c70abe.tar.xz |
drm/radeon/kms: simplify & improve GPU reset V2
This simplify and improve GPU reset for R1XX-R6XX hw, it's
not 100% reliable here are result:
- R1XX/R2XX works bunch of time in a row, sometimes it
seems it can work indifinitly
- R3XX/R3XX the most unreliable one, sometimes you will be
able to reset few times, sometimes not even once
- R5XX more reliable than previous hw, seems to work most
of the times but once in a while it fails for no obvious
reasons (same status than previous reset just no same
happy ending)
- R6XX/R7XX are lot more reliable with this patch, still
it seems that it can fail after a bunch (reset every
2sec for 3hour bring down the GPU & computer)
This have been tested on various hw, for some odd reasons
i wasn't able to lockup RS480/RS690 (while they use to
love locking up).
Note that on R1XX-R5XX the cursor will disapear after
lockup haven't checked why, switch to console and back
to X will restore cursor.
Next step is to record the bogus command that leaded to
the lockup.
V2 Fix r6xx resume path to avoid reinitializing blit
module, use the gpu_lockup boolean to avoid entering
inifinite waiting loop on fence while reiniting the GPU
Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_cs.c')
-rw-r--r-- | drivers/gpu/drm/radeon/radeon_cs.c | 4 |
1 files changed, 0 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index f9b0fe0..ae0fb73 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -220,10 +220,6 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) int r; mutex_lock(&rdev->cs_mutex); - if (rdev->gpu_lockup) { - mutex_unlock(&rdev->cs_mutex); - return -EINVAL; - } /* initialize parser */ memset(&parser, 0, sizeof(struct radeon_cs_parser)); parser.filp = filp; |