Needed for vm_flush unification.
Signed-off-by: Christian König <christian.koenig at amd.com>
---
drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
index c4de1c18bf77..0fb4b4409ef1 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v2_4.c
@@ -889,6 +889,15 @@ static void sdma_v2_4_ring_emit_vm_flush(struct amdgpu_ring *ring,
SDMA_PKT_POLL_REGMEM_DW5_INTERVAL(10)); /* retry count, poll interval */
}
+static void sdma_v2_4_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_v2_4_early_init(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
@@ -1219,6 +1228,7 @@ static const struct amdgpu_ring_funcs sdma_v2_4_ring_funcs = {
.test_ib = sdma_v2_4_ring_test_ib,
.insert_nop = sdma_v2_4_ring_insert_nop,
.pad_ib = sdma_v2_4_ring_pad_ib,
+ .emit_wreg = sdma_v2_4_ring_emit_wreg,
};
static void sdma_v2_4_set_ring_funcs(struct amdgpu_device *adev)
--
2.14.1
