Needed for vm_flush unification.
Signed-off-by: Christian König <[email protected]>
---
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index f0b10cb63940..282b402d93ee 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -1172,6 +1172,15 @@ static void sdma_v4_0_ring_emit_vm_flush(struct
amdgpu_ring *ring,
SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10));
}
+static void sdma_v4_0_ring_emit_wreg(struct amdgpu_ring *ring,
+ uint32_t reg, uint32_t val)
+{
+ amdgpu_ring_write(ring, SDMA_PKT_HEADER_OP(SDMA_OP_SRBM_WRITE) |
+ SDMA_PKT_SRBM_WRITE_HEADER_BYTE_EN(0xf));
+ amdgpu_ring_write(ring, reg);
+ amdgpu_ring_write(ring, val);
+}
+
static int sdma_v4_0_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -1608,6 +1617,7 @@ static const struct amdgpu_ring_funcs
sdma_v4_0_ring_funcs = {
.test_ib = sdma_v4_0_ring_test_ib,
.insert_nop = sdma_v4_0_ring_insert_nop,
.pad_ib = sdma_v4_0_ring_pad_ib,
+ .emit_wreg = sdma_v4_0_ring_emit_wreg,
};
static void sdma_v4_0_set_ring_funcs(struct amdgpu_device *adev)
--
2.14.1
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