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drm/amdgpu: abort KIQ waits when there is a pending reset

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Stop waiting for the KIQ to return back when there is a reset pending.
It's quite likely that the KIQ will never response.

Signed-off-by: Koenig Christian <Christian.Koenig@amd.com>
Suggested-by: Lazar Lijo <Lijo.Lazar@amd.com>
Tested-by: Victor Skvortsov <victor.skvortsov@amd.com>
Signed-off-by: Victor Skvortsov <victor.skvortsov@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Victor Skvortsov 2024-08-02 14:22:26 -04:00 committed by Alex Deucher
parent 9659520419
commit 19cff16559
2 changed files with 8 additions and 1 deletions
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3
drivers/gpu/drm/amd/amdgpu/amdgpu_gmc.c
View File

@ -786,7 +786,8 @@ void amdgpu_gmc_fw_reg_write_reg_wait(struct amdgpu_device *adev,
goto failed_kiq;
might_sleep();
while (r < 1 && cnt++ < MAX_KIQ_REG_TRY) {
while (r < 1 && cnt++ < MAX_KIQ_REG_TRY &&
!amdgpu_reset_pending(adev->reset_domain)) {
msleep(MAX_KIQ_REG_BAILOUT_INTERVAL);
r = amdgpu_fence_wait_polling(ring, seq, MAX_KIQ_REG_WAIT);

6
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
View File

@ -136,6 +136,12 @@ static inline bool amdgpu_reset_domain_schedule(struct amdgpu_reset_domain *doma
return queue_work(domain->wq, work);
}
static inline bool amdgpu_reset_pending(struct amdgpu_reset_domain *domain)
{
lockdep_assert_held(&domain->sem);
return rwsem_is_contended(&domain->sem);
}
void amdgpu_device_lock_reset_domain(struct amdgpu_reset_domain *reset_domain);
void amdgpu_device_unlock_reset_domain(struct amdgpu_reset_domain *reset_domain);