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drm/amdgpu: resolve ras recovery vs smi race condition 

during ras recovery block smu access via smi

Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: John Clements <john.clements@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
John Clements 2020-05-20 10:28:51 +08:00 committed by Alex Deucher
parent 8c8e1f6984
commit 30c296e1c1
1 changed files with 6 additions and 0 deletions
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6
drivers/gpu/drm/amd/powerplay/arcturus_ppt.c
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@ -623,6 +623,9 @@ static int arcturus_print_clk_levels(struct smu_context *smu,
struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
struct arcturus_dpm_table *dpm_table = NULL;
if (amdgpu_ras_intr_triggered())
return snprintf(buf, PAGE_SIZE, "unavailable\n");
dpm_table = smu_dpm->dpm_context;
switch (type) {
@ -998,6 +1001,9 @@ static int arcturus_read_sensor(struct smu_context *smu,
PPTable_t *pptable = table_context->driver_pptable;
int ret = 0;
if (amdgpu_ras_intr_triggered())
return 0;
if (!data || !size)
return -EINVAL;