diff options
| author | Christian König <deathsimple@vodafone.de> | 2012-05-02 17:11:19 +0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2012-05-03 12:16:31 +0400 |
| commit | 6c6f478370eccfbfafbdc6fc55c0def03e58f124 (patch) | |
| tree | 3fee8223bea4d761b50a146e8b55c666e81ab9e1 /drivers/gpu/drm/radeon/radeon_cs.c | |
| parent | 8f676c4c6f0f500616560f13c0276ab6b4e39a6a (diff) | |
| download | linux-6c6f478370eccfbfafbdc6fc55c0def03e58f124.tar.xz | |
drm/radeon: rework recursive gpu reset handling
Instead of all this humpy pumpy with recursive
mutex (which also fixes only halve of the problem)
move the actual gpu reset out of the fence code,
return -EDEADLK and then reset the gpu in the
calling ioctl function.
v2: Split removal of radeon_mutex into separate patch.
Return -EAGAIN if reset is successful.
Signed-off-by: Christian König <deathsimple@vodafone.de>
Reviewed-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 | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 24fb00108759..02eee4bb6a8c 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -496,6 +496,16 @@ out: return r; } +static int radeon_cs_handle_lockup(struct radeon_device *rdev, int r) +{ + if (r == -EDEADLK) { + r = radeon_gpu_reset(rdev); + if (!r) + r = -EAGAIN; + } + return r; +} + int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) { struct radeon_device *rdev = dev->dev_private; @@ -517,6 +527,7 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) if (r) { DRM_ERROR("Failed to initialize parser !\n"); radeon_cs_parser_fini(&parser, r); + r = radeon_cs_handle_lockup(rdev, r); radeon_mutex_unlock(&rdev->cs_mutex); return r; } @@ -525,6 +536,7 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) if (r != -ERESTARTSYS) DRM_ERROR("Failed to parse relocation %d!\n", r); radeon_cs_parser_fini(&parser, r); + r = radeon_cs_handle_lockup(rdev, r); radeon_mutex_unlock(&rdev->cs_mutex); return r; } @@ -538,6 +550,7 @@ int radeon_cs_ioctl(struct drm_device *dev, void *data, struct drm_file *filp) } out: radeon_cs_parser_fini(&parser, r); + r = radeon_cs_handle_lockup(rdev, r); radeon_mutex_unlock(&rdev->cs_mutex); return r; } |