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| author | Alex Deucher <alexander.deucher@amd.com> | 2013-12-09 19:44:30 -0500 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2013-12-24 18:01:10 -0500 |
| commit | ea31bf697d27270188a93cd78cf9de4bc968aca3 (patch) | |
| tree | a77d4b86d59b55824e01d73a617f62aa6e28d6c1 /drivers/gpu/drm/radeon/r600_dma.c | |
| parent | e308b1d375d2fa5389316683ff52f3d9043bf1b8 (diff) | |
| download | blackbird-op-linux-ea31bf697d27270188a93cd78cf9de4bc968aca3.tar.gz blackbird-op-linux-ea31bf697d27270188a93cd78cf9de4bc968aca3.zip | |
drm/radeon: remove generic rptr/wptr functions (v2)
Fill in asic family specific versions rather than
using the generic version. This lets us handle asic
specific differences more easily. In this case, we
disable sw swapping of the rtpr writeback value on
r6xx+ since the hw does it for us. Fixes bogus
rptr readback on BE systems.
v2: remove missed cpu_to_le32(), add comments
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/radeon/r600_dma.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/r600_dma.c | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/r600_dma.c b/drivers/gpu/drm/radeon/r600_dma.c index 7844d15c139f..3452c8410bd7 100644 --- a/drivers/gpu/drm/radeon/r600_dma.c +++ b/drivers/gpu/drm/radeon/r600_dma.c @@ -51,7 +51,14 @@ u32 r600_gpu_check_soft_reset(struct radeon_device *rdev); uint32_t r600_dma_get_rptr(struct radeon_device *rdev, struct radeon_ring *ring) { - return (radeon_ring_generic_get_rptr(rdev, ring) & 0x3fffc) >> 2; + u32 rptr; + + if (rdev->wb.enabled) + rptr = rdev->wb.wb[ring->rptr_offs/4]; + else + rptr = RREG32(DMA_RB_RPTR); + + return (rptr & 0x3fffc) >> 2; } /** @@ -65,7 +72,7 @@ uint32_t r600_dma_get_rptr(struct radeon_device *rdev, uint32_t r600_dma_get_wptr(struct radeon_device *rdev, struct radeon_ring *ring) { - return (RREG32(ring->wptr_reg) & 0x3fffc) >> 2; + return (RREG32(DMA_RB_WPTR) & 0x3fffc) >> 2; } /** @@ -79,7 +86,7 @@ uint32_t r600_dma_get_wptr(struct radeon_device *rdev, void r600_dma_set_wptr(struct radeon_device *rdev, struct radeon_ring *ring) { - WREG32(ring->wptr_reg, (ring->wptr << 2) & 0x3fffc); + WREG32(DMA_RB_WPTR, (ring->wptr << 2) & 0x3fffc); } /** |
