From: =?UTF-8?q?Christian=20K=C3=B6nig?= Date: Fri, 12 Jan 2018 16:34:03 +0100 Subject: drm/amdgpu: wire up emit_wreg for SDMA v4 MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Git-commit: 4ca54b358bb4215cdcd727ea6e8a6c21dcbfe166 Patch-mainline: v4.17-rc1 References: FATE#326289 FATE#326079 FATE#326049 FATE#322398 FATE#326166 Needed for vm_flush unification. Signed-off-by: Christian König Acked-by: Chunming Zhou Signed-off-by: Alex Deucher Acked-by: Petr Tesarik --- drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 10 ++++++++++ 1 file changed, 10 insertions(+) --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -1168,6 +1168,15 @@ static void sdma_v4_0_ring_emit_vm_flush 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; @@ -1604,6 +1613,7 @@ static const struct amdgpu_ring_funcs sd .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)