From: Philip Yang <Philip.Yang@amd.com>
To: amd-gfx@lists.freedesktop.org
Cc: Philip Yang <Philip.Yang@amd.com>
Subject: [PATCH 2/2] drm/amdkfd: flush TLB after updating GPU page table
Date: Wed, 28 Apr 2021 21:53:39 -0400 [thread overview]
Message-ID: <20210429015339.13047-2-Philip.Yang@amd.com> (raw)
In-Reply-To: <20210429015339.13047-1-Philip.Yang@amd.com>
To workaround the situation that vm retry fault keep coming after page
table update. We are investigating the root cause, but once this issue
happens, application will stuck and sometimes have to reboot to recover.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
---
drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
index d9111fea724b..a165e51c4a1c 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c
@@ -1225,6 +1225,9 @@ static int svm_range_map_to_gpus(struct svm_range *prange,
break;
}
}
+
+ amdgpu_amdkfd_flush_gpu_tlb_pasid((struct kgd_dev *)adev,
+ p->pasid);
}
return r;
--
2.17.1
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next prev parent reply other threads:[~2021-04-29 1:54 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-04-29 1:53 [PATCH 1/2] drm/amdkfd: wait migration done only if migration starts Philip Yang
2021-04-29 1:53 ` Philip Yang [this message]
2021-04-29 6:11 ` [PATCH 2/2] drm/amdkfd: flush TLB after updating GPU page table Felix Kuehling
2021-04-29 6:10 ` [PATCH 1/2] drm/amdkfd: wait migration done only if migration starts Felix Kuehling
2021-05-05 17:54 ` philip yang
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