diff options
| author | Christian König <christian.koenig@amd.com> | 2018-01-26 13:15:01 +0100 |
|---|---|---|
| committer | Kevin Wang <Kevin1.Wang@amd.com> | 2018-02-02 12:12:15 +0800 |
| commit | 8587cfc16eb11adb55484291149ec3d8691b5343 (patch) | |
| tree | ab05e0b5675c7fb708710f4d399ebabfcacfdfe7 | |
| parent | 149826e5ff03510eb9561993fb16c5e755199976 (diff) | |
drm/amdgpu: implement sdma_v4_0_ring_emit_reg_wait
Add emit_reg_wait implementation for SDMA v4.
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index 02bcce470e5b..f57c535c818b 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -1162,6 +1162,20 @@ static void sdma_v4_0_ring_emit_wreg(struct amdgpu_ring *ring, amdgpu_ring_write(ring, val); } +static void sdma_v4_0_ring_emit_reg_wait(struct amdgpu_ring *ring, uint32_t reg, + uint32_t val, uint32_t mask) +{ + amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_POLL_REGMEM) | + SDMA_PKT_POLL_REGMEM_HEADER_HDP_FLUSH(0) | + SDMA_PKT_POLL_REGMEM_HEADER_FUNC(3)); /* equal */ + amdgpu_ring_write(ring, reg << 2); + amdgpu_ring_write(ring, 0); + amdgpu_ring_write(ring, val); /* reference */ + amdgpu_ring_write(ring, mask); /* mask */ + amdgpu_ring_write(ring, SDMA_PKT_POLL_REGMEM_DW5_RETRY_COUNT(0xfff) | + SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); +} + static int sdma_v4_0_early_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; @@ -1599,6 +1613,7 @@ static const struct amdgpu_ring_funcs sdma_v4_0_ring_funcs = { .insert_nop = sdma_v4_0_ring_insert_nop, .pad_ib = sdma_v4_0_ring_pad_ib, .emit_wreg = sdma_v4_0_ring_emit_wreg, + .emit_reg_wait = sdma_v4_0_ring_emit_reg_wait, }; static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev) |