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| author | Alex Deucher <alexander.deucher@amd.com> | 2012-12-13 12:27:28 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2012-12-14 10:45:26 -0500 |
| commit | 278a334cbc96d3da66d56235b8ce84081e9a1892 (patch) | |
| tree | b5359119856453cdd69277003861e0a9a9e2b408 /drivers/gpu/drm/radeon/radeon_cs.c | |
| parent | cd459e525f4faeefa0bf78e1bcba3e04496b2cb5 (diff) | |
| download | lwn-278a334cbc96d3da66d56235b8ce84081e9a1892.tar.gz lwn-278a334cbc96d3da66d56235b8ce84081e9a1892.zip | |
drm/radeon: enable the async DMA rings in the CS ioctl
This enables the functionality added in the previous
patches. Userspace acceleration drivers can use the
CS ioctl to submit command buffers to the async DMA
rings.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_cs.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_cs.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c index 1b32a5ab972d..396baba0141a 100644 --- a/drivers/gpu/drm/radeon/radeon_cs.c +++ b/drivers/gpu/drm/radeon/radeon_cs.c @@ -112,6 +112,18 @@ static int radeon_cs_get_ring(struct radeon_cs_parser *p, u32 ring, s32 priority } else p->ring = RADEON_RING_TYPE_GFX_INDEX; break; + case RADEON_CS_RING_DMA: + if (p->rdev->family >= CHIP_CAYMAN) { + if (p->priority > 0) + p->ring = R600_RING_TYPE_DMA_INDEX; + else + p->ring = CAYMAN_RING_TYPE_DMA1_INDEX; + } else if (p->rdev->family >= CHIP_R600) { + p->ring = R600_RING_TYPE_DMA_INDEX; + } else { + return -EINVAL; + } + break; } return 0; } |