On 07/09/2018 03:04 PM, Christian König wrote:
Am 09.07.2018 um 07:13 schrieb Zhang, Jerry (Junwei):
On 07/06/2018 03:27 AM, Andrey Grodzovsky wrote:
Extract and present the reposnsible process and thread when
VM_FAULT happens.
v2: Use getter and setter functions.
Signed-off-by: Andrey Grodzovsky <andrey.grodzov...@amd.com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c | 4 ++++
drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c | 10 +++++++---
drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c | 9 +++++++--
3 files changed, 18 insertions(+), 5 deletions(-)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
index 7a625f3..609c8f5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c
@@ -187,6 +187,10 @@ static int amdgpu_cs_parser_init(struct amdgpu_cs_parser
*p, void *data)
if (p->uf_entry.robj)
p->job->uf_addr = uf_offset;
kfree(chunk_array);
+
+ /* Use this opportunity to fill in task info for the vm */
+ amdgpu_vm_set_task_info(vm);
+
Shall we set the task info when vm init?
No, vm_init() is called from a completely different process which is later on
user of the VM.
Originally I thought UMD opened DRI node and create a VM by vm_init(), then
every command submission
would be passed in the same VM initialized by vm_init().
So that's different process?
return 0;
free_all_kdata:
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index 08753e7..75f3ffb 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -46,7 +46,6 @@
#include "ivsrcid/ivsrcid_vislands30.h"
-
static void gmc_v8_0_set_gmc_funcs(struct amdgpu_device *adev);
static void gmc_v8_0_set_irq_funcs(struct amdgpu_device *adev);
static int gmc_v8_0_wait_for_idle(void *handle);
@@ -1449,8 +1448,13 @@ static int gmc_v8_0_process_interrupt(struct
amdgpu_device *adev,
gmc_v8_0_set_fault_enable_default(adev, false);
if (printk_ratelimit()) {
- dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
- entry->src_id, entry->src_data[0]);
+ struct amdgpu_task_info task_info = { 0 };
+
+ amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
Shall we find vm and get the vm->task_info directly instead of filling local
variable task_info?
(current style is also OK for me, just for more info)
No, we can't guarantee that the task_info pointer in the VM won't be freed
after dropping the spinlock. So returning a copy here is the better approach.
And we may also check the return value for "NULL" case, otherwise it may cause
access errorin dev_err(),
if failed to find vm (although, it's most unlikely to happen).
Since we use a copy of the task info we should never get a NULL pointer. The string
should already be zero terminated with the "{ 0 }" initialization above.
Thanks to explain that more.
Got it, fine for me.
Jerry
Christian.
Jerry
+
+ 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);
dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 691a659..9df94b4 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -259,11 +259,16 @@ static int gmc_v9_0_process_interrupt(struct
amdgpu_device *adev,
}
if (printk_ratelimit()) {
+ struct amdgpu_task_info task_info = { 0 };
+
+ amdgpu_vm_get_task_info(adev, entry->pasid, &task_info);
+
dev_err(adev->dev,
- "[%s] VMC page fault (src_id:%u ring:%u vmid:%u pasid:%u)\n",
+ "[%s] VMC page fault (src_id:%u ring:%u vmid:%u pasid:%u, for process
%s pid %d thread %s pid %d\n)\n",
entry->vmid_src ? "mmhub" : "gfxhub",
entry->src_id, entry->ring_id, entry->vmid,
- entry->pasid);
+ entry->pasid, task_info.process_name, task_info.tgid,
+ task_info.task_name, task_info.pid);
dev_err(adev->dev, " at page 0x%016llx from %d\n",
addr, entry->client_id);
if (!amdgpu_sriov_vf(adev))
_______________________________________________
amd-gfx mailing list
amd-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/amd-gfx
