Am 23.04.24 um 16:44 schrieb Yunxiang Li:
Some times a hang GPU causes multiple reset source to schedule resets,
if the second source schedule after we call
amdgpu_device_stop_pending_resets they will be able to trigger an
unnecessary reset.
Move amdgpu_device_stop_pending_resets to after the reset is already
done, since any reset scheduled after that point would be legitimate.
Remove unnecessary and incorrect checks for amdgpu_in_reset that was
kinda serving this purpose.
Signed-off-by: Yunxiang Li <yunxiang...@amd.com>
Looks really good to me of hand, especially that so many cases of using
amdgpu_in_reset() are removed.
But I'm just not deeply into each component to fully judge everything here.
So only Acked-by: Christian König <christian.koe...@amd.com> for now, if
you need a more in deep review please ping me.
Regards,
Christian.
---
v2: instead of adding amdgpu_in_reset check, move when we cancel pending
resets
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 17 ++++++++---------
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 2 +-
drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c | 2 +-
drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c | 2 +-
drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c | 2 +-
5 files changed, 12 insertions(+), 13 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index f8a34db5d9e3..28f6a1c38b17 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -5061,8 +5061,6 @@ static int amdgpu_device_reset_sriov(struct amdgpu_device
*adev,
retry:
amdgpu_amdkfd_pre_reset(adev);
- amdgpu_device_stop_pending_resets(adev);
-
if (from_hypervisor)
r = amdgpu_virt_request_full_gpu(adev, true);
else
@@ -5813,13 +5811,6 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
r, adev_to_drm(tmp_adev)->unique);
tmp_adev->asic_reset_res = r;
}
-
- if (!amdgpu_sriov_vf(tmp_adev))
- /*
- * Drop all pending non scheduler resets. Scheduler
resets
- * were already dropped during drm_sched_stop
- */
- amdgpu_device_stop_pending_resets(tmp_adev);
}
/* Actual ASIC resets if needed.*/
@@ -5841,6 +5832,14 @@ int amdgpu_device_gpu_recover(struct amdgpu_device *adev,
goto retry;
}
+ list_for_each_entry(tmp_adev, device_list_handle, reset_list) {
+ /*
+ * Drop all pending non scheduler resets. Scheduler resets
+ * were already dropped during drm_sched_stop
+ */
+ amdgpu_device_stop_pending_resets(tmp_adev);
+ }
+
skip_hw_reset:
/* Post ASIC reset for all devs .*/
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
index 54ab51a4ada7..c2385178d6b3 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c
@@ -597,7 +597,7 @@ static void amdgpu_virt_update_vf2pf_work_item(struct
work_struct *work)
if (ret) {
adev->virt.vf2pf_update_retry_cnt++;
if ((adev->virt.vf2pf_update_retry_cnt >=
AMDGPU_VF2PF_UPDATE_MAX_RETRY_LIMIT) &&
- amdgpu_sriov_runtime(adev) && !amdgpu_in_reset(adev)) {
+ amdgpu_sriov_runtime(adev)) {
amdgpu_ras_set_fed(adev, true);
if (amdgpu_reset_domain_schedule(adev->reset_domain,
&adev->virt.flr_work))
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
index 0c7275bca8f7..c5ba9c4757a8 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_ai.c
@@ -319,7 +319,7 @@ static int xgpu_ai_mailbox_rcv_irq(struct amdgpu_device
*adev,
switch (event) {
case IDH_FLR_NOTIFICATION:
- if (amdgpu_sriov_runtime(adev) && !amdgpu_in_reset(adev))
+ if (amdgpu_sriov_runtime(adev))
WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain,
&adev->virt.flr_work),
"Failed to queue work! at %s",
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
index aba00d961627..fa9d1b02f391 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_nv.c
@@ -358,7 +358,7 @@ static int xgpu_nv_mailbox_rcv_irq(struct amdgpu_device
*adev,
switch (event) {
case IDH_FLR_NOTIFICATION:
- if (amdgpu_sriov_runtime(adev) && !amdgpu_in_reset(adev))
+ if (amdgpu_sriov_runtime(adev))
WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain,
&adev->virt.flr_work),
"Failed to queue work! at %s",
diff --git a/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c
b/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c
index 59f53c743362..14a065516ae4 100644
--- a/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c
+++ b/drivers/gpu/drm/amd/amdgpu/mxgpu_vi.c
@@ -560,7 +560,7 @@ static int xgpu_vi_mailbox_rcv_irq(struct amdgpu_device
*adev,
r = xgpu_vi_mailbox_rcv_msg(adev, IDH_FLR_NOTIFICATION);
/* only handle FLR_NOTIFY now */
- if (!r && !amdgpu_in_reset(adev))
+ if (!r)
WARN_ONCE(!amdgpu_reset_domain_schedule(adev->reset_domain,
&adev->virt.flr_work),
"Failed to queue work! at %s",
