From 3d8361b11ca45b329349ec82ad765d059d8b0673 Mon Sep 17 00:00:00 2001 From: Tao Zhou Date: Mon, 23 Sep 2019 19:10:19 +0800 Subject: [PATCH] drm/amdgpu: add comments in ras interrupt callback add comments to clarify why checking GFX IP BLOCK for each ras interrupt callback Signed-off-by: Tao Zhou Reviewed-by: Guchun Chen Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c | 7 ++++++- drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c | 4 ++++ drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 4 ++++ 3 files changed, 14 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c index 1b7a022..68495f0e 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gfx.c @@ -636,7 +636,12 @@ int amdgpu_gfx_process_ras_data_cb(struct amdgpu_device *adev, void *err_data, struct amdgpu_iv_entry *entry) { - /* TODO ue will trigger an interrupt. */ + /* TODO ue will trigger an interrupt. + * + * When “Full RAS” is enabled, the per-IP interrupt sources should + * be disabled and the driver should only look for the aggregated + * interrupt via sync flood + */ if (!amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX)) { kgd2kfd_set_sram_ecc_flag(adev->kfd.dev); if (adev->gfx.funcs->query_ras_error_count) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c index 7744de1..d4fb9cf 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_umc.c @@ -95,6 +95,10 @@ int amdgpu_umc_process_ras_data_cb(struct amdgpu_device *adev, { struct ras_err_data *err_data = (struct ras_err_data *)ras_error_status; + /* When “Full RAS” is enabled, the per-IP interrupt sources should + * be disabled and the driver should only look for the aggregated + * interrupt via sync flood + */ if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX)) return AMDGPU_RAS_SUCCESS; diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index 98fd1e5..96581b5 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -1930,6 +1930,10 @@ static int sdma_v4_0_process_ras_data_cb(struct amdgpu_device *adev, { int instance; + /* When “Full RAS” is enabled, the per-IP interrupt sources should + * be disabled and the driver should only look for the aggregated + * interrupt via sync flood + */ if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__GFX)) goto out; -- 2.7.4