diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/mes_v10_1.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/mes_v10_1.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c b/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c index 5c5d27cd1029..0644ca0ef353 100644 --- a/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c +++ b/drivers/gpu/drm/amd/amdgpu/mes_v10_1.c @@ -183,6 +183,39 @@ static void mes_v10_1_free_ucode_buffers(struct amdgpu_device *adev) (void **)&adev->mes.ucode_fw_ptr); } +static void mes_v10_1_enable(struct amdgpu_device *adev, bool enable) +{ + uint32_t data = 0; + + if (enable) { + data = RREG32_SOC15(GC, 0, mmCP_MES_CNTL); + data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE0_RESET, 1); + WREG32_SOC15(GC, 0, mmCP_MES_CNTL, data); + + /* set ucode start address */ + WREG32_SOC15(GC, 0, mmCP_MES_PRGRM_CNTR_START, + (uint32_t)(adev->mes.uc_start_addr) >> 2); + + /* clear BYPASS_UNCACHED to avoid hangs after interrupt. */ + data = RREG32_SOC15(GC, 0, mmCP_MES_DC_OP_CNTL); + data = REG_SET_FIELD(data, CP_MES_DC_OP_CNTL, + BYPASS_UNCACHED, 0); + WREG32_SOC15(GC, 0, mmCP_MES_DC_OP_CNTL, data); + + /* unhalt MES and activate pipe0 */ + data = REG_SET_FIELD(0, CP_MES_CNTL, MES_PIPE0_ACTIVE, 1); + WREG32_SOC15(GC, 0, mmCP_MES_CNTL, data); + } else { + data = RREG32_SOC15(GC, 0, mmCP_MES_CNTL); + data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE0_ACTIVE, 0); + data = REG_SET_FIELD(data, CP_MES_CNTL, + MES_INVALIDATE_ICACHE, 1); + data = REG_SET_FIELD(data, CP_MES_CNTL, MES_PIPE0_RESET, 1); + data = REG_SET_FIELD(data, CP_MES_CNTL, MES_HALT, 1); + WREG32_SOC15(GC, 0, mmCP_MES_CNTL, data); + } +} + /* This function is for backdoor MES firmware */ static int mes_v10_1_load_microcode(struct amdgpu_device *adev) { |