Re: [PATCH] drm/amdgpu: extend MAX_KIQ_REG_TRY to 1000

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Am 08.02.21 um 06:45 schrieb Jiawei Gu:
Extend retry times of KIQ to avoid starvation situation caused by
long time full access of GPU by other VFs.

In what units is that? We also need the KIQ during interrupt handling and that looks like *way* to big for that.

Christian.


Signed-off-by: Jiawei Gu <Jiawei.Gu@xxxxxxx>
---
  drivers/gpu/drm/amd/amdgpu/amdgpu.h | 2 +-
  1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 639db32c1383..e0c797a5f739 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -288,7 +288,7 @@ enum amdgpu_kiq_irq {
#define MAX_KIQ_REG_WAIT 5000 /* in usecs, 5ms */
  #define MAX_KIQ_REG_BAILOUT_INTERVAL   5 /* in msecs, 5ms */
-#define MAX_KIQ_REG_TRY 80 /* 20 -> 80 */
+#define MAX_KIQ_REG_TRY 1000
int amdgpu_device_ip_set_clockgating_state(void *dev,
  					   enum amd_ip_block_type block_type,

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