diff options
| author | Mukul Joshi <mukul.joshi@amd.com> | 2025-09-05 22:22:32 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-01-05 16:59:56 -0500 |
| commit | fab4099549a050703b87da012e5ebd75463bd654 (patch) | |
| tree | 698d62ece0f14eb6b16cb3f2b53d2f467165ac17 | |
| parent | e418a8fdb9644712364eb582984eca0905664080 (diff) | |
drm/amdgpu: Disable TCP Early Write Ack for GFX 12.1
Disable the TCP Early Write Ack feature on GFX 12.1.
Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Alex Sierra <alex.sierra@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c b/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c index 1f567bd6cc46..7d4b241fc3a4 100644 --- a/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c +++ b/drivers/gpu/drm/amd/amdgpu/gfx_v12_1.c @@ -2657,6 +2657,17 @@ static void gfx_v12_1_xcc_disable_burst(struct amdgpu_device *adev, WREG32_SOC15(GC, GET_INST(GC, xcc_id), regGLARB_DRAM_BURST_CTRL, 0xf); } +static void gfx_v12_1_xcc_disable_early_write_ack(struct amdgpu_device *adev, + int xcc_id) +{ + uint32_t data; + + data = RREG32_SOC15(GC, GET_INST(GC, xcc_id), regTCP_CNTL3); + data = REG_SET_FIELD(data, TCP_CNTL3, DISABLE_EARLY_WRITE_ACK, 0x1); + + WREG32_SOC15(GC, GET_INST(GC, xcc_id), regTCP_CNTL3, data); +} + static void gfx_v12_1_init_golden_registers(struct amdgpu_device *adev) { int i; @@ -2665,6 +2676,7 @@ static void gfx_v12_1_init_golden_registers(struct amdgpu_device *adev) gfx_v12_1_xcc_disable_burst(adev, i); gfx_v12_1_xcc_enable_atomics(adev, i); gfx_v12_1_xcc_setup_tcp_thrashing_ctrl(adev, i); + gfx_v12_1_xcc_disable_early_write_ack(adev, i); } } |