diff options
| author | Christian König <christian.koenig@amd.com> | 2018-01-12 16:33:03 +0100 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 14:18:02 -0500 |
| commit | 5b9263d9f2ab4f8afe21ef60c71eaf8c8289235a (patch) | |
| tree | 840e9b6da4130001dad2103aa206117b8bfb3986 /drivers/gpu/drm/amd/amdgpu/si_dma.c | |
| parent | 254e825b370549ab727426a90e21ab90ff8dbe38 (diff) | |
drm/amdgpu: wire up emit_wreg for SI DMA
Needed for vm_flush unification.
Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/si_dma.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/si_dma.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/si_dma.c b/drivers/gpu/drm/amd/amdgpu/si_dma.c index 697475a25749..c70e1d35975c 100644 --- a/drivers/gpu/drm/amd/amdgpu/si_dma.c +++ b/drivers/gpu/drm/amd/amdgpu/si_dma.c @@ -497,6 +497,14 @@ static void si_dma_ring_emit_vm_flush(struct amdgpu_ring *ring, amdgpu_ring_write(ring, (0 << 28) | 0x20); /* func(always) | poll interval */ } +static void si_dma_ring_emit_wreg(struct amdgpu_ring *ring, + uint32_t reg, uint32_t val) +{ + amdgpu_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0, 0)); + amdgpu_ring_write(ring, (0xf << 16) | reg); + amdgpu_ring_write(ring, val); +} + static int si_dma_early_init(void *handle) { struct amdgpu_device *adev = (struct amdgpu_device *)handle; @@ -789,6 +797,7 @@ static const struct amdgpu_ring_funcs si_dma_ring_funcs = { .test_ib = si_dma_ring_test_ib, .insert_nop = amdgpu_ring_insert_nop, .pad_ib = si_dma_ring_pad_ib, + .emit_wreg = si_dma_ring_emit_wreg, }; static void si_dma_set_ring_funcs(struct amdgpu_device *adev) |