diff options
| author | Christian König <christian.koenig@amd.com> | 2014-05-21 19:43:59 +0400 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2014-05-30 16:21:44 +0400 |
| commit | 60a445405a1731bac2279eab354173c9c3156747 (patch) | |
| tree | 2a3c1a801b553e66c8f2026852ef33c2eb0c27bc | |
| parent | 4b21ce1b4b5d262e7d4656b8ececc891fc3cb806 (diff) | |
| download | linux-60a445405a1731bac2279eab354173c9c3156747.tar.xz | |
drm/radeon: avoid crash if VM command submission isn't available
Signed-off-by: Christian König <christian.koenig@amd.com>
CC: stable@vger.kernel.org
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cs.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 2b6e0ebcc13a..4b6f5b824153 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -342,10 +342,17 @@ int radeon_cs_parser_init(struct radeon_cs_parser *p, void *data) return -EINVAL; /* we only support VM on some SI+ rings */ - if ((p->rdev->asic->ring[p->ring]->cs_parse == NULL) && - ((p->cs_flags & RADEON_CS_USE_VM) == 0)) { - DRM_ERROR("Ring %d requires VM!\n", p->ring); - return -EINVAL; + if ((p->cs_flags & RADEON_CS_USE_VM) == 0) { + if (p->rdev->asic->ring[p->ring]->cs_parse == NULL) { + DRM_ERROR("Ring %d requires VM!\n", p->ring); + return -EINVAL; + } + } else { + if (p->rdev->asic->ring[p->ring]->ib_parse == NULL) { + DRM_ERROR("VM not supported on ring %d!\n", + p->ring); + return -EINVAL; + } } } |