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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>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2018-01-26 13:15:01 +01:00 committed by Alex Deucher
parent 230fcc34a8
commit 5ad68ee4ca
1 changed files with 15 additions and 0 deletions
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15
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
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@ -1152,6 +1152,20 @@ 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;
@ -1588,6 +1602,7 @@ 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)