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drm/amdgpu:Remove sdma halt/unhalt during frontdoor load

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sdma halt/unhalt is performed by psp when frontdoor
loading used,so this can be skipped.

v2: Instead of removing halt/unhalt completely,
    driver will do it only during backdoor load.

Signed-off-by: Mangesh Gadre <Mangesh.Gadre@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Asad Kamal <asad.kamal@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Mangesh Gadre
2023-06-21 16:55:05 +08:00
committed by Alex Deucher
parent 4ff96bcc0d
commit 7f03b1d14d
1 changed files with 9 additions and 4 deletions
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13
drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
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@@ -578,6 +578,9 @@ static void sdma_v4_4_2_inst_enable(struct amdgpu_device *adev, bool enable,
return;
}
if (adev->firmware.load_type == AMDGPU_FW_LOAD_PSP)
return;
for_each_inst(i, inst_mask) {
f32_cntl = RREG32_SDMA(i, regSDMA_F32_CNTL);
f32_cntl = REG_SET_FIELD(f32_cntl, SDMA_F32_CNTL, HALT, enable ? 0 : 1);
@@ -904,10 +907,12 @@ static int sdma_v4_4_2_inst_start(struct amdgpu_device *adev,
ring->use_doorbell, ring->doorbell_index,
adev->doorbell_index.sdma_doorbell_range);
/* unhalt engine */
temp = RREG32_SDMA(i, regSDMA_F32_CNTL);
temp = REG_SET_FIELD(temp, SDMA_F32_CNTL, HALT, 0);
WREG32_SDMA(i, regSDMA_F32_CNTL, temp);
if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) {
/* unhalt engine */
temp = RREG32_SDMA(i, regSDMA_F32_CNTL);
temp = REG_SET_FIELD(temp, SDMA_F32_CNTL, HALT, 0);
WREG32_SDMA(i, regSDMA_F32_CNTL, temp);
}
}
}