On 2024-01-18 14:21, Shashank Sharma wrote:
This patch changes the handling and lifecycle of vm->task_info object.
The major changes are:
- vm->task_info is a dynamically allocated ptr now, and its uasge is
reference counted.
- introducing two new helper funcs for task_info lifecycle management
- amdgpu_vm_get_task_info: reference counts up task_info before
returning this info
- amdgpu_vm_put_task_info: reference counts down task_info
- last put to task_info() frees task_info from the vm.
This patch also does logistical changes required for existing usage
of vm->task_info.
V2: Do not block all the prints when task_info not found (Felix)
Cc: Christian Koenig <[email protected]>
Cc: Alex Deucher <[email protected]>
Cc: Felix Kuehling <[email protected]>
Signed-off-by: Shashank Sharma <[email protected]>
Nit-picks inline.
---
drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c | 7 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_job.c | 18 ++-
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 12 +-
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 142 +++++++++++++++++---
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 26 +++-
drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 2 +-
drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 30 +++--
drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 31 +++--
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 22 +--
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 26 ++--
drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c | 26 ++--
drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c | 26 ++--
drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c | 20 +--
13 files changed, 287 insertions(+), 101 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
index 0e61ebdb3f3e..99c736b6e32c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_debugfs.c
@@ -1775,9 +1775,12 @@ static int amdgpu_debugfs_vm_info_show(struct seq_file
*m, void *unused)
list_for_each_entry(file, &dev->filelist, lhead) {
struct amdgpu_fpriv *fpriv = file->driver_priv;
struct amdgpu_vm *vm = &fpriv->vm;
+ struct amdgpu_task_info *ti;
+
+ ti = amdgpu_vm_get_task_info_vm(vm);
Can ti be NULL here? I think it can, so you'd need a NULL check to avoid
a possible kernel oops.
+ seq_printf(m, "pid:%d\tProcess:%s ----------\n", ti->pid,
ti->process_name);
+ amdgpu_vm_put_task_info_vm(ti, vm);
- seq_printf(m, "pid:%d\tProcess:%s ----------\n",
- vm->task_info.pid, vm->task_info.process_name);
r = amdgpu_bo_reserve(vm->root.bo, true);
if (r)
break;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
index 1f357198533f..af23746821b7 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -35,7 +35,7 @@ static enum drm_gpu_sched_stat amdgpu_job_timedout(struct
drm_sched_job *s_job)
{
struct amdgpu_ring *ring = to_amdgpu_ring(s_job->sched);
struct amdgpu_job *job = to_amdgpu_job(s_job);
- struct amdgpu_task_info ti;
+ struct amdgpu_task_info *ti;
struct amdgpu_device *adev = ring->adev;
int idx;
int r;
@@ -48,7 +48,7 @@ static enum drm_gpu_sched_stat amdgpu_job_timedout(struct
drm_sched_job *s_job)
return DRM_GPU_SCHED_STAT_ENODEV;
}
- memset(&ti, 0, sizeof(struct amdgpu_task_info));
+
adev->job_hang = true;
if (amdgpu_gpu_recovery &&
@@ -58,12 +58,16 @@ static enum drm_gpu_sched_stat amdgpu_job_timedout(struct
drm_sched_job *s_job)
goto exit;
}
- amdgpu_vm_get_task_info(ring->adev, job->pasid, &ti);
DRM_ERROR("ring %s timeout, signaled seq=%u, emitted seq=%u\n",
- job->base.sched->name, atomic_read(&ring->fence_drv.last_seq),
- ring->fence_drv.sync_seq);
- DRM_ERROR("Process information: process %s pid %d thread %s pid %d\n",
- ti.process_name, ti.tgid, ti.task_name, ti.pid);
+ job->base.sched->name,
atomic_read(&ring->fence_drv.last_seq),
+ ring->fence_drv.sync_seq);
Unnecessary (and incorrect) indentation change.
+
+ ti = amdgpu_vm_get_task_info_pasid(ring->adev, job->pasid);
+ if (ti) {
+ DRM_ERROR("Process information: process %s pid %d thread %s pid
%d\n",
+ ti->process_name, ti->tgid, ti->task_name, ti->pid);
+ amdgpu_vm_put_task_info_pasid(ring->adev, ti, job->pasid);
+ }
dma_fence_set_error(&s_job->s_fence->finished, -ETIME);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
index 4baa300121d8..bfd7a6067edd 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
@@ -230,8 +230,16 @@ void amdgpu_coredump(struct amdgpu_device *adev, bool
vram_lost,
coredump->reset_vram_lost = vram_lost;
- if (reset_context->job && reset_context->job->vm)
- coredump->reset_task_info = reset_context->job->vm->task_info;
+ if (reset_context->job && reset_context->job->vm) {
+ struct amdgpu_task_info *ti;
+ struct amdgpu_vm *vm = reset_context->job->vm;
+
+ ti = amdgpu_vm_get_task_info_vm(vm);
+ if (ti) {
+ coredump->reset_task_info = *ti;
+ amdgpu_vm_put_task_info_vm(ti, vm);
+ }
+ }
coredump->adev = adev;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index d1b8afd105c9..0c95e10c815d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2347,6 +2347,9 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct
amdgpu_vm *vm)
amdgpu_amdkfd_gpuvm_destroy_cb(adev, vm);
+ if (vm->task_info)
+ amdgpu_vm_put_task_info_vm(vm->task_info, vm);
+
flush_work(&vm->pt_free_work);
root = amdgpu_bo_ref(vm->root.bo);
@@ -2507,26 +2510,129 @@ int amdgpu_vm_ioctl(struct drm_device *dev, void
*data, struct drm_file *filp)
return 0;
}
+static void amdgpu_vm_destroy_task_info(struct kref *kref)
+{
+ struct amdgpu_task_info *ti = container_of(kref, struct
amdgpu_task_info, refcount);
+
+ kfree(ti);
+}
+
+static inline struct amdgpu_vm *
+amdgpu_vm_get_vm_from_pasid(struct amdgpu_device *adev, u32 pasid)
+{
+ struct amdgpu_vm *vm;
+ unsigned long flags;
+
+ xa_lock_irqsave(&adev->vm_manager.pasids, flags);
+ vm = xa_load(&adev->vm_manager.pasids, pasid);
+ xa_unlock_irqrestore(&adev->vm_manager.pasids, flags);
+
+ return vm;
+}
+
+/**
+ * amdgpu_vm_put_task_info_pasid - reference down the vm task_info ptr
+ * frees the vm task_info ptr at the last put
+ *
+ * @adev: drm device pointer
+ * @task_info: task_info struct under discussion.
+ * @pasid: pasid of the VM which contains task_info
+ */
+void amdgpu_vm_put_task_info_pasid(struct amdgpu_device *adev,
+ struct amdgpu_task_info *task_info,
+ u32 pasid)
+{
+ int ret;
+
+ ret = kref_put(&task_info->refcount, amdgpu_vm_destroy_task_info);
+
+ /* Clean up if object was removed in the last put */
+ if (ret == 1) {
+ struct amdgpu_vm *vm;
+
+ vm = amdgpu_vm_get_vm_from_pasid(adev, pasid);
+ if (!vm) {
+ WARN(1, "Invalid PASID %u to put task info\n", pasid);
+ return;
+ }
+
+ vm->task_info = NULL;
This doesn't make sense. If there is a VM pointing to the task_info,
then the ref count should not go to 0. Therefore this whole "look up the
VM from PASID and clear vm->task_info" seams bogus.
I'd expect the last put_task_info call to come from amdgpu_vm_fini. At
that point setting task_info to NULL is probably unnecessary. But if we
wanted that, we could set it to NULL in the caller.
+ }
+}
+
+/**
+ * amdgpu_vm_put_task_info_vm - reference down the vm task_info ptr
+ * frees the vm task_info ptr at the last refdown
+ *
+ * @task_info: task_info struct under discussion.
+ * @vm: VM which contains task_info
+ */
+void amdgpu_vm_put_task_info_vm(struct amdgpu_task_info *task_info, struct
amdgpu_vm *vm)
+{
+ int ret;
+
+ ret = kref_put(&task_info->refcount, amdgpu_vm_destroy_task_info);
+
+ /* Clean up if object was removed in the last put */
+ if (ret == 1)
+ vm->task_info = NULL;
Similar to above: If a VM is pointing to task_info, the ref count should
not be 0.
That means, you can merge the two functions into a single
amdgpu_vm_put_task_info. No need for a pasid or vm parameter.
+}
+
/**
- * amdgpu_vm_get_task_info - Extracts task info for a PASID.
+ * amdgpu_vm_get_task_info_pasid - Extracts task info for a PASID.
*
* @adev: drm device pointer
* @pasid: PASID identifier for VM
- * @task_info: task_info to fill.
+ *
+ * Returns the respective task_info structure, which must be referenced
+ * down with amdgpu_vm_put_task_info.
*/
-void amdgpu_vm_get_task_info(struct amdgpu_device *adev, u32 pasid,
- struct amdgpu_task_info *task_info)
+struct amdgpu_task_info *
+amdgpu_vm_get_task_info_pasid(struct amdgpu_device *adev, u32 pasid)
{
struct amdgpu_vm *vm;
- unsigned long flags;
+ struct amdgpu_task_info *ti = NULL;
- xa_lock_irqsave(&adev->vm_manager.pasids, flags);
+ vm = amdgpu_vm_get_vm_from_pasid(adev, pasid);
+ if (vm) {
+ ti = vm->task_info;
+ kref_get(&vm->task_info->refcount);
+ }
- vm = xa_load(&adev->vm_manager.pasids, pasid);
- if (vm)
- *task_info = vm->task_info;
+ return ti;
+}
- xa_unlock_irqrestore(&adev->vm_manager.pasids, flags);
+/**
+ * amdgpu_vm_get_task_info_vm - Extracts task info for a vm.
+ *
+ * @vm: VM to get info from
+ *
+ * Returns the respective task_info structure, which must be referenced
+ * down with amdgpu_vm_put_task_info.
+ */
+struct amdgpu_task_info *
+amdgpu_vm_get_task_info_vm(struct amdgpu_vm *vm)
+{
+ struct amdgpu_task_info *ti = NULL;
+
+ if (vm) {
+ ti = vm->task_info;
+ kref_get(&vm->task_info->refcount);
+ }
+
+ return ti;
+}
+
+static int amdgpu_vm_create_task_info(struct amdgpu_vm *vm)
+{
+ vm->task_info = kzalloc(sizeof(struct amdgpu_task_info), GFP_KERNEL);
+ if (!vm->task_info) {
+ DRM_ERROR("OOM while creating task_info space\n");
Printing OOM error messages is usually redundant. The allocators are
already very noisy when OOM happens. I think checkpatch.pl also warns
about that. Maybe it doesn't catch DRM_ERROR but only printk and friends.
+ return -ENOMEM;
+ }
+
+ kref_init(&vm->task_info->refcount);
+ return 0;
}
/**
@@ -2536,17 +2642,23 @@ void amdgpu_vm_get_task_info(struct amdgpu_device
*adev, u32 pasid,
*/
void amdgpu_vm_set_task_info(struct amdgpu_vm *vm)
{
- if (vm->task_info.pid)
+ if (!vm->task_info) {
+ if (amdgpu_vm_create_task_info(vm))
+ /* OOM */
+ return;
+ }
+
+ if (vm->task_info->pid == current->pid)
return;
- vm->task_info.pid = current->pid;
- get_task_comm(vm->task_info.task_name, current);
+ vm->task_info->pid = current->pid;
+ get_task_comm(vm->task_info->task_name, current);
if (current->group_leader->mm != current->mm)
return;
- vm->task_info.tgid = current->group_leader->pid;
- get_task_comm(vm->task_info.process_name, current->group_leader);
+ vm->task_info->tgid = current->group_leader->pid;
+ get_task_comm(vm->task_info->process_name, current->group_leader);
}
/**
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 2cd86d2bf73f..c693772f8942 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -190,10 +190,11 @@ struct amdgpu_vm_pte_funcs {
};
struct amdgpu_task_info {
- char process_name[TASK_COMM_LEN];
- char task_name[TASK_COMM_LEN];
- pid_t pid;
- pid_t tgid;
+ char process_name[TASK_COMM_LEN];
+ char task_name[TASK_COMM_LEN];
+ pid_t pid;
+ pid_t tgid;
+ struct kref refcount;
};
/**
@@ -356,7 +357,7 @@ struct amdgpu_vm {
uint64_t pd_phys_addr;
/* Some basic info about the task */
- struct amdgpu_task_info task_info;
+ struct amdgpu_task_info *task_info;
/* Store positions of group of BOs */
struct ttm_lru_bulk_move lru_bulk_move;
@@ -492,8 +493,19 @@ bool amdgpu_vm_need_pipeline_sync(struct amdgpu_ring *ring,
struct amdgpu_job *job);
void amdgpu_vm_check_compute_bug(struct amdgpu_device *adev);
-void amdgpu_vm_get_task_info(struct amdgpu_device *adev, u32 pasid,
- struct amdgpu_task_info *task_info);
+struct amdgpu_task_info *
+amdgpu_vm_get_task_info_pasid(struct amdgpu_device *adev, u32 pasid);
+
+void amdgpu_vm_put_task_info_pasid(struct amdgpu_device *adev,
+ struct amdgpu_task_info *task_info,
+ u32 pasid);
+
+struct amdgpu_task_info *
+amdgpu_vm_get_task_info_vm(struct amdgpu_vm *vm);
+
+void amdgpu_vm_put_task_info_vm(struct amdgpu_task_info *task_info,
+ struct amdgpu_vm *vm);
+
bool amdgpu_vm_handle_fault(struct amdgpu_device *adev, u32 pasid,
u32 vmid, u32 node_id, uint64_t addr,
bool write_fault);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
index a160265ddc07..d9e895cb0c10 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c
@@ -1027,7 +1027,7 @@ int amdgpu_vm_ptes_update(struct amdgpu_vm_update_params
*params,
trace_amdgpu_vm_update_ptes(params, frag_start, upd_end,
min(nptes, 32u), dst, incr,
upd_flags,
- vm->task_info.tgid,
+ vm->task_info ?
vm->task_info->tgid : 0,
vm->immediate.fence_context);
amdgpu_vm_pte_update_flags(params, to_amdgpu_bo_vm(pt),
cursor.level, pe_start, dst,
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index a5a05c16c10d..e00b2a53b192 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -105,7 +105,7 @@ static int gmc_v10_0_process_interrupt(struct amdgpu_device
*adev,
struct amdgpu_vmhub *hub = &adev->vmhub[vmhub_index];
bool retry_fault = !!(entry->src_data[1] & 0x80);
bool write_fault = !!(entry->src_data[1] & 0x20);
- struct amdgpu_task_info task_info;
+ struct amdgpu_task_info *task_info;
uint32_t status = 0;
u64 addr;
@@ -157,18 +157,26 @@ static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev,
if (!printk_ratelimit())
return 0;
- memset(&task_info, 0, sizeof(struct amdgpu_task_info));
- amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+ task_info = amdgpu_vm_get_task_info_pasid(adev, entry->pasid);
+ if (task_info) {
+ dev_err(adev->dev,
+ "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, for
process %s pid %d thread %s pid %d)\n",
+ entry->vmid_src ? "mmhub" : "gfxhub",
+ entry->src_id, entry->ring_id, entry->vmid,
+ entry->pasid, task_info->process_name, task_info->tgid,
+ task_info->task_name, task_info->pid);
+ amdgpu_vm_put_task_info_pasid(adev, task_info, entry->pasid);
+ } else {
+ dev_err(adev->dev,
+ "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, no
process info)\n",
+ entry->vmid_src ? "mmhub" : "gfxhub",
+ entry->src_id, entry->ring_id, entry->vmid,
+ entry->pasid);
Can we avoid the duplication here? It's too easy for them to get out of
sync. I think it's OK to change the message format so that the process
into is printed on a separate line. E.g.:
dev_err(adev->dev,
- "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, for process %s
pid %d thread %s pid %d)\n",
+ "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u)\n",
entry->vmid_src ? "mmhub" : "gfxhub",
entry->src_id, entry->ring_id, entry->vmid,
- entry->pasid, task_info.process_name, task_info.tgid,
- task_info.task_name, task_info.pid);
+ entry->pasid);
+ if (task_info) {
+ dev_err(adev->dev, " in process %s pid %d thread %s pid %d\n",
+ task_info.process_name, task_info.tgid,
+ task_info.task_name, task_info.pid);
+ }
+ }
- dev_err(adev->dev,
- "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, for process %s
pid %d thread %s pid %d)\n",
- entry->vmid_src ? "mmhub" : "gfxhub",
- entry->src_id, entry->ring_id, entry->vmid,
- entry->pasid, task_info.process_name, task_info.tgid,
- task_info.task_name, task_info.pid);
dev_err(adev->dev, " in page starting at address 0x%016llx from client 0x%x
(%s)\n",
- addr, entry->client_id,
- soc15_ih_clientid_name[entry->client_id]);
+ addr, entry->client_id,
+ soc15_ih_clientid_name[entry->client_id]);
if (!amdgpu_sriov_vf(adev))
hub->vmhub_funcs->print_l2_protection_fault_status(adev,
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index 23d7b548d13f..3dda6c310729 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -126,19 +126,28 @@ static int gmc_v11_0_process_interrupt(struct
amdgpu_device *adev,
}
if (printk_ratelimit()) {
- struct amdgpu_task_info task_info;
-
- memset(&task_info, 0, sizeof(struct amdgpu_task_info));
- amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+ struct amdgpu_task_info *task_info;
+
+ task_info = amdgpu_vm_get_task_info_pasid(adev, entry->pasid);
+ if (task_info) {
+ dev_err(adev->dev,
+ "[%s] page fault (src_id:%u ring:%u vmid:%u
pasid:%u, for process %s pid %d thread %s pid %d)\n",
+ entry->vmid_src ? "mmhub" : "gfxhub",
+ entry->src_id, entry->ring_id, entry->vmid,
+ entry->pasid, task_info->process_name,
task_info->tgid,
+ task_info->task_name, task_info->pid);
+ amdgpu_vm_put_task_info_pasid(adev, task_info,
entry->pasid);
+ } else {
+ dev_err(adev->dev,
+ "[%s] page fault (src_id:%u ring:%u vmid:%u
pasid:%u, no process info)\n",
+ entry->vmid_src ? "mmhub" : "gfxhub",
+ entry->src_id, entry->ring_id, entry->vmid,
+ entry->pasid);
+ }
Same as above.
- dev_err(adev->dev,
- "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u, for
process %s pid %d thread %s pid %d)\n",
- entry->vmid_src ? "mmhub" : "gfxhub",
- entry->src_id, entry->ring_id, entry->vmid,
- entry->pasid, task_info.process_name, task_info.tgid,
- task_info.task_name, task_info.pid);
dev_err(adev->dev, " in page starting at address 0x%016llx from
client %d\n",
- addr, entry->client_id);
+ addr, entry->client_id);
+
if (!amdgpu_sriov_vf(adev))
hub->vmhub_funcs->print_l2_protection_fault_status(adev, status);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index ff4ae73d27ec..aa3887c3bb35 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -1444,18 +1444,24 @@ static int gmc_v8_0_process_interrupt(struct
amdgpu_device *adev,
gmc_v8_0_set_fault_enable_default(adev, false);
if (printk_ratelimit()) {
- struct amdgpu_task_info task_info;
-
- memset(&task_info, 0, sizeof(struct amdgpu_task_info));
- amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+ struct amdgpu_task_info *task_info;
+
+ task_info = amdgpu_vm_get_task_info_pasid(adev, entry->pasid);
+ if (task_info) {
+ dev_err(adev->dev, "GPU fault detected: %d 0x%08x for
process %s pid %d thread %s pid %d\n",
+ entry->src_id, entry->src_data[0],
task_info->process_name,
+ task_info->tgid, task_info->task_name,
task_info->pid);
+ amdgpu_vm_put_task_info_pasid(adev, task_info,
entry->pasid);
+ } else {
+ dev_err(adev->dev, "GPU fault detected: %d 0x%08x (no
process info)\n",
+ entry->src_id, entry->src_data[0]);
+ }
Same as above.
- dev_err(adev->dev, "GPU fault detected: %d 0x%08x for process %s pid %d thread %s pid %d\n",
- entry->src_id, entry->src_data[0],
task_info.process_name,
- task_info.tgid, task_info.task_name, task_info.pid);
dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR
0x%08X\n",
- addr);
+ addr);
dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS
0x%08X\n",
status);
+
gmc_v8_0_vm_decode_fault(adev, status, addr, mc_client,
entry->pasid);
}
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 2ac5820e9c92..075d633109e3 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -549,7 +549,7 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device
*adev,
bool retry_fault = !!(entry->src_data[1] & 0x80);
bool write_fault = !!(entry->src_data[1] & 0x20);
uint32_t status = 0, cid = 0, rw = 0;
- struct amdgpu_task_info task_info;
+ struct amdgpu_task_info *task_info;
struct amdgpu_vmhub *hub;
const char *mmhub_cid;
const char *hub_name;
@@ -626,15 +626,23 @@ static int gmc_v9_0_process_interrupt(struct
amdgpu_device *adev,
if (!printk_ratelimit())
return 0;
- memset(&task_info, 0, sizeof(struct amdgpu_task_info));
- amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+ task_info = amdgpu_vm_get_task_info_pasid(adev, entry->pasid);
+ if (task_info) {
+ dev_err(adev->dev,
+ "[%s] %s page fault (src_id:%u ring:%u vmid:%u pasid:%u, for
process %s pid %d thread %s pid %d)\n",
+ hub_name, retry_fault ? "retry" : "no-retry",
+ entry->src_id, entry->ring_id, entry->vmid,
+ entry->pasid, task_info->process_name, task_info->tgid,
+ task_info->task_name, task_info->pid);
+ amdgpu_vm_put_task_info_pasid(adev, task_info, entry->pasid);
+ } else {
+ dev_err(adev->dev,
+ "[%s] %s page fault (src_id:%u ring:%u vmid:%u pasid:%u, no
process info)\n",
+ hub_name, retry_fault ? "retry" : "no-retry",
+ entry->src_id, entry->ring_id, entry->vmid,
+ entry->pasid);
+ }
Same as above.
- dev_err(adev->dev,
- "[%s] %s page fault (src_id:%u ring:%u vmid:%u pasid:%u, for process
%s pid %d thread %s pid %d)\n",
- hub_name, retry_fault ? "retry" : "no-retry",
- entry->src_id, entry->ring_id, entry->vmid,
- entry->pasid, task_info.process_name, task_info.tgid,
- task_info.task_name, task_info.pid);
dev_err(adev->dev, " in page starting at address 0x%016llx from IH client
0x%x (%s)\n",
addr, entry->client_id,
soc15_ih_clientid_name[entry->client_id]);
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
index 3d68dd5523c6..515d1a1ff141 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_0.c
@@ -2104,7 +2104,7 @@ static int sdma_v4_0_print_iv_entry(struct amdgpu_device
*adev,
struct amdgpu_iv_entry *entry)
{
int instance;
- struct amdgpu_task_info task_info;
+ struct amdgpu_task_info *task_info;
u64 addr;
instance = sdma_v4_0_irq_id_to_seq(entry->client_id);
@@ -2116,15 +2116,23 @@ static int sdma_v4_0_print_iv_entry(struct
amdgpu_device *adev,
addr = (u64)entry->src_data[0] << 12;
addr |= ((u64)entry->src_data[1] & 0xf) << 44;
- memset(&task_info, 0, sizeof(struct amdgpu_task_info));
- amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+ task_info = amdgpu_vm_get_task_info_pasid(adev, entry->pasid);
+ if (task_info) {
+ dev_dbg_ratelimited(adev->dev,
+ "[sdma%d] address:0x%016llx src_id:%u ring:%u vmid:%u "
+ "pasid:%u, for process %s pid %d thread %s pid %d\n",
+ instance, addr, entry->src_id, entry->ring_id,
entry->vmid,
+ entry->pasid, task_info->process_name, task_info->tgid,
+ task_info->task_name, task_info->pid);
+ amdgpu_vm_put_task_info_pasid(adev, task_info, entry->pasid);
+ } else {
+ dev_dbg_ratelimited(adev->dev,
+ "[sdma%d] address:0x%016llx src_id:%u ring:%u vmid:%u "
+ "pasid:%u, no process info\n",
+ instance, addr, entry->src_id, entry->ring_id,
entry->vmid,
+ entry->pasid);
+ }
Same as above.
- dev_dbg_ratelimited(adev->dev,
- "[sdma%d] address:0x%016llx src_id:%u ring:%u vmid:%u "
- "pasid:%u, for process %s pid %d thread %s pid %d\n",
- instance, addr, entry->src_id, entry->ring_id, entry->vmid,
- entry->pasid, task_info.process_name, task_info.tgid,
- task_info.task_name, task_info.pid);
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
index 0f24af6f2810..d7e23bd90f7f 100644
--- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
+++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c
@@ -1642,7 +1642,7 @@ static int sdma_v4_4_2_print_iv_entry(struct
amdgpu_device *adev,
struct amdgpu_iv_entry *entry)
{
int instance;
- struct amdgpu_task_info task_info;
+ struct amdgpu_task_info *task_info;
u64 addr;
instance = sdma_v4_4_2_irq_id_to_seq(entry->client_id);
@@ -1654,15 +1654,23 @@ static int sdma_v4_4_2_print_iv_entry(struct
amdgpu_device *adev,
addr = (u64)entry->src_data[0] << 12;
addr |= ((u64)entry->src_data[1] & 0xf) << 44;
- memset(&task_info, 0, sizeof(struct amdgpu_task_info));
- amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+ task_info = amdgpu_vm_get_task_info_pasid(adev, entry->pasid);
+ if (task_info) {
+ dev_dbg_ratelimited(adev->dev,
+ "[sdma%d] address:0x%016llx src_id:%u ring:%u vmid:%u "
+ "pasid:%u, for process %s pid %d thread %s pid %d\n",
+ instance, addr, entry->src_id, entry->ring_id,
entry->vmid,
+ entry->pasid, task_info->process_name, task_info->tgid,
+ task_info->task_name, task_info->pid);
+ amdgpu_vm_put_task_info_pasid(adev, task_info, entry->pasid);
+ } else {
+ dev_dbg_ratelimited(adev->dev,
+ "[sdma%d] address:0x%016llx src_id:%u ring:%u vmid:%u "
+ "pasid:%u (no process info)\n",
+ instance, addr, entry->src_id, entry->ring_id,
entry->vmid,
+ entry->pasid);
+ }
Same as above.
Regards,
Felix
- dev_dbg_ratelimited(adev->dev,
- "[sdma%d] address:0x%016llx src_id:%u ring:%u vmid:%u "
- "pasid:%u, for process %s pid %d thread %s pid %d\n",
- instance, addr, entry->src_id, entry->ring_id, entry->vmid,
- entry->pasid, task_info.process_name, task_info.tgid,
- task_info.task_name, task_info.pid);
return 0;
}
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
index d9953c2b2661..0dfe4b3bd18a 100644
--- a/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
+++ b/drivers/gpu/drm/amd/amdkfd/kfd_smi_events.c
@@ -238,16 +238,16 @@ void kfd_smi_event_update_thermal_throttling(struct
kfd_node *dev,
void kfd_smi_event_update_vmfault(struct kfd_node *dev, uint16_t pasid)
{
- struct amdgpu_task_info task_info;
-
- memset(&task_info, 0, sizeof(struct amdgpu_task_info));
- amdgpu_vm_get_task_info(dev->adev, pasid, &task_info);
- /* Report VM faults from user applications, not retry from kernel */
- if (!task_info.pid)
- return;
-
- kfd_smi_event_add(0, dev, KFD_SMI_EVENT_VMFAULT, "%x:%s\n",
- task_info.pid, task_info.task_name);
+ struct amdgpu_task_info *task_info;
+
+ task_info = amdgpu_vm_get_task_info_pasid(dev->adev, pasid);
+ if (task_info) {
+ /* Report VM faults from user applications, not retry from
kernel */
+ if (task_info->pid)
+ kfd_smi_event_add(0, dev, KFD_SMI_EVENT_VMFAULT,
"%x:%s\n",
+ task_info->pid, task_info->task_name);
+ amdgpu_vm_put_task_info_pasid(dev->adev, task_info, pasid);
+ }
}
void kfd_smi_event_page_fault_start(struct kfd_node *node, pid_t pid,
