From: Philip Yang Date: Tue, 26 Nov 2024 20:45:32 +0000 (-0500) Subject: drm/amdgpu: Don't enable sdma 4.4.5 CTXEMPTY interrupt X-Git-Tag: v6.14-rc1~174^2~14^2~12 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=b4b7271e5ca95b581f2fcc4ae852c4079215e92d;p=thirdparty%2Fkernel%2Flinux.git drm/amdgpu: Don't enable sdma 4.4.5 CTXEMPTY interrupt The sdma context empty interrupt is dropped in amdgpu_irq_dispatch as unregistered interrupt src_id 243, this interrupt accounts to 1/3 of total interrupts and causes IH primary ring overflow when running stressful benchmark application. Disable this interrupt has no side effect found. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher --- diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c index 4c8308b2878b6..56507ae919b0c 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c @@ -973,10 +973,12 @@ static int sdma_v4_4_2_inst_start(struct amdgpu_device *adev, /* set utc l1 enable flag always to 1 */ temp = RREG32_SDMA(i, regSDMA_CNTL); temp = REG_SET_FIELD(temp, SDMA_CNTL, UTC_L1_ENABLE, 1); - /* enable context empty interrupt during initialization */ - temp = REG_SET_FIELD(temp, SDMA_CNTL, CTXEMPTY_INT_ENABLE, 1); - WREG32_SDMA(i, regSDMA_CNTL, temp); + if (amdgpu_ip_version(adev, SDMA0_HWIP, 0) < IP_VERSION(4, 4, 5)) { + /* enable context empty interrupt during initialization */ + temp = REG_SET_FIELD(temp, SDMA_CNTL, CTXEMPTY_INT_ENABLE, 1); + WREG32_SDMA(i, regSDMA_CNTL, temp); + } if (!amdgpu_sriov_vf(adev)) { if (adev->firmware.load_type != AMDGPU_FW_LOAD_PSP) { /* unhalt engine */