SDMA ras error counters are dirty ones after cold reboot Read operation is needed to reset them to 0
Signed-off-by: Hawking Zhang <[email protected]> --- drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h | 1 + drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 20 ++++++++++++++------ 2 files changed, 15 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h index ee0ca996da0d..2f4412e030a4 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_sdma.h @@ -56,6 +56,7 @@ struct amdgpu_sdma_ras_funcs { void (*ras_fini)(struct amdgpu_device *adev); int (*query_ras_error_count)(struct amdgpu_device *adev, uint32_t instance, void *ras_error_status); + void (*reset_ras_error_count)(struct amdgpu_device *adev); }; struct amdgpu_sdma { diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c index 5d49253f8449..80734b5cc8b8 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c @@ -1802,13 +1802,9 @@ static int sdma_v4_0_late_init(void *handle) struct ras_ih_if ih_info = { .cb = sdma_v4_0_process_ras_data_cb, }; - int i; - /* read back edc counter registers to clear the counters */ - if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__SDMA)) { - for (i = 0; i < adev->sdma.num_instances; i++) - RREG32_SDMA(i, mmSDMA0_EDC_COUNTER); - } + if (adev->sdma.funcs && adev->sdma.funcs->reset_ras_error_count) + adev->sdma.funcs->reset_ras_error_count(adev); if (adev->sdma.funcs && adev->sdma.funcs->ras_late_init) return adev->sdma.funcs->ras_late_init(adev, &ih_info); @@ -2575,10 +2571,22 @@ static int sdma_v4_0_query_ras_error_count(struct amdgpu_device *adev, return 0; }; +static void sdma_v4_0_reset_ras_error_count(struct amdgpu_device *adev) +{ + int i; + + /* read back edc counter registers to clear the counters */ + if (amdgpu_ras_is_supported(adev, AMDGPU_RAS_BLOCK__SDMA)) { + for (i = 0; i < adev->sdma.num_instances; i++) + RREG32_SDMA(i, mmSDMA0_EDC_COUNTER); + } +} + static const struct amdgpu_sdma_ras_funcs sdma_v4_0_ras_funcs = { .ras_late_init = amdgpu_sdma_ras_late_init, .ras_fini = amdgpu_sdma_ras_fini, .query_ras_error_count = sdma_v4_0_query_ras_error_count, + .reset_ras_error_count = sdma_v4_0_reset_ras_error_count, }; static void sdma_v4_0_set_ras_funcs(struct amdgpu_device *adev) -- 2.17.1 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
