From 28f87950d935eec2ba1076933535213f4f5c8a06 Mon Sep 17 00:00:00 2001 From: Le Ma Date: Fri, 22 Nov 2019 17:56:47 +0800 Subject: [PATCH] drm/amdgpu: clear ras controller status registers when interrupt occurs To fix issue that ras controller interrupt cannot be triggered anymore after one time nbif uncorrectable error. And error count is stored in nbif ras object for query. Signed-off-by: Le Ma Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c index 25231d699341..9a3a65a0691c 100644 --- a/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c +++ b/drivers/gpu/drm/amd/amdgpu/nbio_v7_4.c @@ -52,6 +52,9 @@ #define BIF_MMSCH1_DOORBELL_RANGE__OFFSET_MASK 0x00000FFCL #define BIF_MMSCH1_DOORBELL_RANGE__SIZE_MASK 0x001F0000L +static void nbio_v7_4_query_ras_error_count(struct amdgpu_device *adev, + void *ras_error_status); + static void nbio_v7_4_remap_hdp_registers(struct amdgpu_device *adev) { WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL, @@ -314,6 +317,7 @@ static void nbio_v7_4_init_registers(struct amdgpu_device *adev) static void nbio_v7_4_handle_ras_controller_intr_no_bifring(struct amdgpu_device *adev) { uint32_t bif_doorbell_intr_cntl; + struct ras_manager *obj = amdgpu_ras_find_obj(adev, adev->nbio.ras_if); bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL); if (REG_GET_FIELD(bif_doorbell_intr_cntl, @@ -324,6 +328,12 @@ static void nbio_v7_4_handle_ras_controller_intr_no_bifring(struct amdgpu_device RAS_CNTLR_INTERRUPT_CLEAR, 1); WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl); + /* + * clear error status after ras_controller_intr according to + * hw team and count ue number for query + */ + nbio_v7_4_query_ras_error_count(adev, &obj->err_data); + DRM_WARN("RAS controller interrupt triggered by NBIF error\n"); /* ras_controller_int is dedicated for nbif ras error,