diff options
| author | Matthew Garrett <mjg@redhat.com> | 2010-04-26 15:52:20 -0400 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2010-05-18 18:21:17 +1000 |
| commit | 5876dd249e8e47c730cac090bf6edd88e5f04327 (patch) | |
| tree | ce5c99862483dca878bef6ac8c8280c380344f4e /drivers/gpu/drm/radeon/radeon_ttm.c | |
| parent | 2aba631c008e7d82e3ec45dd32bec1ea63a963cf (diff) | |
radeon: Unmap vram pages when reclocking
Touching vram while the card is reclocking can lead to lockups. Unmap
any pages that could be touched by the CPU and block any accesses to
vram until the reclocking is complete.
Signed-off-by: Matthew Garrett <mjg@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index af98f45954b3..3aa3a65800ab 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -607,13 +607,17 @@ static const struct vm_operations_struct *ttm_vm_ops = NULL; static int radeon_ttm_fault(struct vm_area_struct *vma, struct vm_fault *vmf) { struct ttm_buffer_object *bo; + struct radeon_device *rdev; int r; - bo = (struct ttm_buffer_object *)vma->vm_private_data; + bo = (struct ttm_buffer_object *)vma->vm_private_data; if (bo == NULL) { return VM_FAULT_NOPAGE; } + rdev = radeon_get_rdev(bo->bdev); + mutex_lock(&rdev->vram_mutex); r = ttm_vm_ops->fault(vma, vmf); + mutex_unlock(&rdev->vram_mutex); return r; } |