For SR-IOV use case, we call gpu reset under the case we have no choice ...
So many places like debug fs shouldn't a good reason to trigger gpu
reset
You know that gpu reset under SR-IOV will have very big impact on all other VFs
...
BR Monk
-----Original Message-----
From: Christian König [mailto:deathsim...@vodafone.de]
Sent: Monday, May 08, 2017 5:08 PM
To: Liu, Monk <monk....@amd.com>; amd-gfx@lists.freedesktop.org
Subject: Re: [PATCH 1/4] drm/amdgpu:don't invoke srio-gpu-reset in
gpu-reset
Am 08.05.2017 um 08:51 schrieb Monk Liu:
because we don't want to do sriov-gpu-reset under certain cases, so
just split those two funtion and don't invoke sr-iov one from
bare-metal one.
Change-Id: I641126c241e2ee2dfd54e6d16c389b159f99cfe0
Signed-off-by: Monk Liu <monk....@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 3 ---
drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c | 3 ++-
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c | 2 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c | 3 ++-
drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 6 +++++-
5 files changed, 10 insertions(+), 7 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index 45a60a6..4985a7e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2652,9 +2652,6 @@ int amdgpu_gpu_reset(struct amdgpu_device *adev)
int resched;
bool need_full_reset;
- if (amdgpu_sriov_vf(adev))
- return amdgpu_sriov_gpu_reset(adev, true);
-
if (!amdgpu_check_soft_reset(adev)) {
DRM_INFO("No hardware hang detected. Did some blocks stall?\n");
return 0;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
index 5772ef2..d7523d1 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fence.c
@@ -651,7 +651,8 @@ static int amdgpu_debugfs_gpu_reset(struct seq_file *m,
void *data)
struct amdgpu_device *adev = dev->dev_private;
seq_printf(m, "gpu reset\n");
- amdgpu_gpu_reset(adev);
+ if (!amdgpu_sriov_vf(adev))
+ amdgpu_gpu_reset(adev);
Well that is clearly not a good idea. Why do you want to disable the reset here?
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
index 67be795..5bcbea0 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
@@ -221,7 +221,7 @@ void amdgpu_gem_object_close(struct
drm_gem_object *obj,
static int amdgpu_gem_handle_lockup(struct amdgpu_device *adev, int r)
{
- if (r == -EDEADLK) {
+ if (r == -EDEADLK && !amdgpu_sriov_vf(adev)) {
Not a problem of your patch, but that stuff is outdated and should have been
removed completely years ago. Going to take care of that.
r = amdgpu_gpu_reset(adev);
if (!r)
r = -EAGAIN;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
index f8a6c95..49c6e6e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_irq.c
@@ -89,7 +89,8 @@ static void amdgpu_irq_reset_work_func(struct work_struct
*work)
struct amdgpu_device *adev = container_of(work, struct amdgpu_device,
reset_work);
- amdgpu_gpu_reset(adev);
+ if (!amdgpu_sriov_vf(adev))
+ amdgpu_gpu_reset(adev);
Mhm, that disables the reset on an invalid register access or invalid command
stream. Is that really what we want?
Christian.
}
/* Disable *all* interrupts */
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index 690ef3d..c7718af 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -36,7 +36,11 @@ static void amdgpu_job_timedout(struct amd_sched_job *s_job)
job->base.sched->name,
atomic_read(&job->ring->fence_drv.last_seq),
job->ring->fence_drv.sync_seq);
- amdgpu_gpu_reset(job->adev);
+
+ if (amdgpu_sriov_vf(job->adev))
+ amdgpu_sriov_gpu_reset(job->adev, true);
+ else
+ amdgpu_gpu_reset(job->adev);
}
int amdgpu_job_alloc(struct amdgpu_device *adev, unsigned num_ibs,
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