xiaomi-sm8450/android_kernel_xiaomi_sm8450
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/radeon: enable the async DMA rings in the CS ioctl

Browse Source 
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>
This commit is contained in:
Alex Deucher
2012-12-13 12:27:28 -05:00
parent cd459e525f
commit 278a334cbc
2 changed files with 13 additions and 0 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/gpu/drm/radeon/radeon_cs.c
View File

@@ -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;
}