[PATCH] drm/amdgpu: cache in more vm fault information

[PATCH] drm/amdgpu: cache in more vm fault information

[Sunil Khatri]

When an  page fault interrupt is raised there
is a lot more information that is useful for
developers to analyse the pagefault.

Add all such information in the last cached
pagefault from an interrupt handler.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 9 +++++++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 7 ++++++-
 drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 2 +-
 drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 2 +-
 drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c  | 2 +-
 drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c  | 2 +-
 drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c  | 2 +-
 7 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 4299ce386322..b77e8e28769d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2905,7 +2905,7 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
  * Cache the fault info for later use by userspace in debugging.
  */
 void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev,
-				  unsigned int pasid,
+				  struct amdgpu_iv_entry *entry,
 				  uint64_t addr,
 				  uint32_t status,
 				  unsigned int vmhub)
@@ -2915,7 +2915,7 @@ void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev,
 
 	xa_lock_irqsave(&adev->vm_manager.pasids, flags);
 
-	vm = xa_load(&adev->vm_manager.pasids, pasid);
+	vm = xa_load(&adev->vm_manager.pasids, entry->pasid);
 	/* Don't update the fault cache if status is 0.  In the multiple
 	 * fault case, subsequent faults will return a 0 status which is
 	 * useless for userspace and replaces the useful fault status, so
@@ -2924,6 +2924,11 @@ void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev,
 	if (vm && status) {
 		vm->fault_info.addr = addr;
 		vm->fault_info.status = status;
+		vm->fault_info.client_id = entry->client_id;
+		vm->fault_info.src_id = entry->src_id;
+		vm->fault_info.vmid = entry->vmid;
+		vm->fault_info.pasid = entry->pasid;
+		vm->fault_info.ring_id = entry->ring_id;
 		if (AMDGPU_IS_GFXHUB(vmhub)) {
 			vm->fault_info.vmhub = AMDGPU_VMHUB_TYPE_GFX;
 			vm->fault_info.vmhub |=
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 047ec1930d12..c7782a89bdb5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -286,6 +286,11 @@ struct amdgpu_vm_fault_info {
 	uint32_t	status;
 	/* which vmhub? gfxhub, mmhub, etc. */
 	unsigned int	vmhub;
+	unsigned int	client_id;
+	unsigned int	src_id;
+	unsigned int	ring_id;
+	unsigned int	pasid;
+	unsigned int	vmid;
 };
 
 struct amdgpu_vm {
@@ -605,7 +610,7 @@ static inline void amdgpu_vm_eviction_unlock(struct amdgpu_vm *vm)
 }
 
 void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev,
-				  unsigned int pasid,
+				  struct amdgpu_iv_entry *entry,
 				  uint64_t addr,
 				  uint32_t status,
 				  unsigned int vmhub);
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index d933e19e0cf5..6b177ce8db0e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -150,7 +150,7 @@ static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev,
 		status = RREG32(hub->vm_l2_pro_fault_status);
 		WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
 
-		amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status,
+		amdgpu_vm_update_fault_cache(adev, entry, addr, status,
 					     entry->vmid_src ? AMDGPU_MMHUB0(0) : AMDGPU_GFXHUB(0));
 	}
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index 527dc917e049..bcf254856a3e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -121,7 +121,7 @@ static int gmc_v11_0_process_interrupt(struct amdgpu_device *adev,
 		status = RREG32(hub->vm_l2_pro_fault_status);
 		WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
 
-		amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status,
+		amdgpu_vm_update_fault_cache(adev, entry, addr, status,
 					     entry->vmid_src ? AMDGPU_MMHUB0(0) : AMDGPU_GFXHUB(0));
 	}
 
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 3da7b6a2b00d..e9517ebbe1fd 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -1270,7 +1270,7 @@ static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
 	if (!addr && !status)
 		return 0;
 
-	amdgpu_vm_update_fault_cache(adev, entry->pasid,
+	amdgpu_vm_update_fault_cache(adev, entry,
 				     ((u64)addr) << AMDGPU_GPU_PAGE_SHIFT, status, AMDGPU_GFXHUB(0));
 
 	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index d20e5f20ee31..a271bf832312 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -1438,7 +1438,7 @@ static int gmc_v8_0_process_interrupt(struct amdgpu_device *adev,
 	if (!addr && !status)
 		return 0;
 
-	amdgpu_vm_update_fault_cache(adev, entry->pasid,
+	amdgpu_vm_update_fault_cache(adev, entry,
 				     ((u64)addr) << AMDGPU_GPU_PAGE_SHIFT, status, AMDGPU_GFXHUB(0));
 
 	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 47b63a4ce68b..dc9fb1fb9540 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -666,7 +666,7 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
 	rw = REG_GET_FIELD(status, VM_L2_PROTECTION_FAULT_STATUS, RW);
 	WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
 
-	amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status, vmhub);
+	amdgpu_vm_update_fault_cache(adev, entry, addr, status, vmhub);
 
 	dev_err(adev->dev,
 		"VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
-- 
2.34.1

[PATCH] drm/amdgpu: add vm fault information to devcoredump

[Sunil Khatri]

Add page fault information to the devcoredump.

Output of devcoredump:
**** AMDGPU Device Coredump ****
version: 1
kernel: 6.7.0-amd-staging-drm-next
module: amdgpu
time: 29.725011811
process_name: soft_recovery_p PID: 1720

Ring timed out details
IP Type: 0 Ring Name: gfx_0.0.0

[gfxhub] Page fault observed for GPU family:143
Faulty page starting at address 0x0000000000000000
Protection fault status register:0x301031

VRAM is lost due to GPU reset!

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 15 ++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h |  1 +
 2 files changed, 15 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
index 147100c27c2d..d7fea6cdf2f9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
@@ -203,8 +203,20 @@ amdgpu_devcoredump_read(char *buffer, loff_t offset, size_t count,
 			   coredump->ring->name);
 	}
 
+	if (coredump->fault_info.status) {
+		struct amdgpu_vm_fault_info *fault_info = &coredump->fault_info;
+
+		drm_printf(&p, "\n[%s] Page fault observed for GPU family:%d\n",
+			   fault_info->vmhub ? "mmhub" : "gfxhub",
+			   coredump->adev->family);
+		drm_printf(&p, "Faulty page starting at address 0x%016llx\n",
+			   fault_info->addr);
+		drm_printf(&p, "Protection fault status register:0x%x\n",
+			   fault_info->status);
+	}
+
 	if (coredump->reset_vram_lost)
-		drm_printf(&p, "VRAM is lost due to GPU reset!\n");
+		drm_printf(&p, "\nVRAM is lost due to GPU reset!\n");
 	if (coredump->adev->reset_info.num_regs) {
 		drm_printf(&p, "AMDGPU register dumps:\nOffset:     Value:\n");
 
@@ -253,6 +265,7 @@ void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost,
 	if (job) {
 		s_job = &job->base;
 		coredump->ring = to_amdgpu_ring(s_job->sched);
+		coredump->fault_info = job->vm->fault_info;
 	}
 
 	coredump->adev = adev;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
index 60522963aaca..3197955264f9 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
@@ -98,6 +98,7 @@ struct amdgpu_coredump_info {
 	struct timespec64               reset_time;
 	bool                            reset_vram_lost;
 	struct amdgpu_ring			*ring;
+	struct amdgpu_vm_fault_info	fault_info;
 };
 #endif
 
-- 
2.34.1

RE: [PATCH] drm/amdgpu: cache in more vm fault information

[Khatri, Sunil]

[AMD Official Use Only - General]

Ignore this. Triggered wrongly.

-----Original Message-----
From: Sunil Khatri <sunil.khatri@amd.com>
Sent: Wednesday, March 6, 2024 11:50 PM
To: Deucher, Alexander <Alexander.Deucher@amd.com>; Koenig, Christian <Christian.Koenig@amd.com>; Sharma, Shashank <Shashank.Sharma@amd.com>
Cc: amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; linux-kernel@vger.kernel.org; Joshi, Mukul <Mukul.Joshi@amd.com>; Paneer Selvam, Arunpravin <Arunpravin.PaneerSelvam@amd.com>; Khatri, Sunil <Sunil.Khatri@amd.com>
Subject: [PATCH] drm/amdgpu: cache in more vm fault information

When an  page fault interrupt is raised there is a lot more information that is useful for developers to analyse the pagefault.

Add all such information in the last cached pagefault from an interrupt handler.

Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c | 9 +++++++--  drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h | 7 ++++++-  drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c | 2 +-  drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c | 2 +-  drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c  | 2 +-  drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c  | 2 +-  drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c  | 2 +-
 7 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
index 4299ce386322..b77e8e28769d 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
@@ -2905,7 +2905,7 @@ void amdgpu_debugfs_vm_bo_info(struct amdgpu_vm *vm, struct seq_file *m)
  * Cache the fault info for later use by userspace in debugging.
  */
 void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev,
-                                 unsigned int pasid,
+                                 struct amdgpu_iv_entry *entry,
                                  uint64_t addr,
                                  uint32_t status,
                                  unsigned int vmhub)
@@ -2915,7 +2915,7 @@ void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev,

        xa_lock_irqsave(&adev->vm_manager.pasids, flags);

-       vm = xa_load(&adev->vm_manager.pasids, pasid);
+       vm = xa_load(&adev->vm_manager.pasids, entry->pasid);
        /* Don't update the fault cache if status is 0.  In the multiple
         * fault case, subsequent faults will return a 0 status which is
         * useless for userspace and replaces the useful fault status, so @@ -2924,6 +2924,11 @@ void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev,
        if (vm && status) {
                vm->fault_info.addr = addr;
                vm->fault_info.status = status;
+               vm->fault_info.client_id = entry->client_id;
+               vm->fault_info.src_id = entry->src_id;
+               vm->fault_info.vmid = entry->vmid;
+               vm->fault_info.pasid = entry->pasid;
+               vm->fault_info.ring_id = entry->ring_id;
                if (AMDGPU_IS_GFXHUB(vmhub)) {
                        vm->fault_info.vmhub = AMDGPU_VMHUB_TYPE_GFX;
                        vm->fault_info.vmhub |=
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
index 047ec1930d12..c7782a89bdb5 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
@@ -286,6 +286,11 @@ struct amdgpu_vm_fault_info {
        uint32_t        status;
        /* which vmhub? gfxhub, mmhub, etc. */
        unsigned int    vmhub;
+       unsigned int    client_id;
+       unsigned int    src_id;
+       unsigned int    ring_id;
+       unsigned int    pasid;
+       unsigned int    vmid;
 };

 struct amdgpu_vm {
@@ -605,7 +610,7 @@ static inline void amdgpu_vm_eviction_unlock(struct amdgpu_vm *vm)  }

 void amdgpu_vm_update_fault_cache(struct amdgpu_device *adev,
-                                 unsigned int pasid,
+                                 struct amdgpu_iv_entry *entry,
                                  uint64_t addr,
                                  uint32_t status,
                                  unsigned int vmhub);
diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
index d933e19e0cf5..6b177ce8db0e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v10_0.c
@@ -150,7 +150,7 @@ static int gmc_v10_0_process_interrupt(struct amdgpu_device *adev,
                status = RREG32(hub->vm_l2_pro_fault_status);
                WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);

-               amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status,
+               amdgpu_vm_update_fault_cache(adev, entry, addr, status,
                                             entry->vmid_src ? AMDGPU_MMHUB0(0) : AMDGPU_GFXHUB(0));
        }

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
index 527dc917e049..bcf254856a3e 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v11_0.c
@@ -121,7 +121,7 @@ static int gmc_v11_0_process_interrupt(struct amdgpu_device *adev,
                status = RREG32(hub->vm_l2_pro_fault_status);
                WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);

-               amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status,
+               amdgpu_vm_update_fault_cache(adev, entry, addr, status,
                                             entry->vmid_src ? AMDGPU_MMHUB0(0) : AMDGPU_GFXHUB(0));
        }

diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
index 3da7b6a2b00d..e9517ebbe1fd 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c
@@ -1270,7 +1270,7 @@ static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
        if (!addr && !status)
                return 0;

-       amdgpu_vm_update_fault_cache(adev, entry->pasid,
+       amdgpu_vm_update_fault_cache(adev, entry,
                                     ((u64)addr) << AMDGPU_GPU_PAGE_SHIFT, status, AMDGPU_GFXHUB(0));

        if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
index d20e5f20ee31..a271bf832312 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v8_0.c
@@ -1438,7 +1438,7 @@ static int gmc_v8_0_process_interrupt(struct amdgpu_device *adev,
        if (!addr && !status)
                return 0;

-       amdgpu_vm_update_fault_cache(adev, entry->pasid,
+       amdgpu_vm_update_fault_cache(adev, entry,
                                     ((u64)addr) << AMDGPU_GPU_PAGE_SHIFT, status, AMDGPU_GFXHUB(0));

        if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST) diff --git a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
index 47b63a4ce68b..dc9fb1fb9540 100644
--- a/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c
@@ -666,7 +666,7 @@ static int gmc_v9_0_process_interrupt(struct amdgpu_device *adev,
        rw = REG_GET_FIELD(status, VM_L2_PROTECTION_FAULT_STATUS, RW);
        WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);

-       amdgpu_vm_update_fault_cache(adev, entry->pasid, addr, status, vmhub);
+       amdgpu_vm_update_fault_cache(adev, entry, addr, status, vmhub);

        dev_err(adev->dev,
                "VM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
--
2.34.1

RE: [PATCH] drm/amdgpu: add vm fault information to devcoredump

[Deucher, Alexander]

[Public]

> -----Original Message-----
> From: Sunil Khatri <sunil.khatri@amd.com>
> Sent: Wednesday, March 6, 2024 1:20 PM
> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Koenig, Christian
> <Christian.Koenig@amd.com>; Sharma, Shashank
> <Shashank.Sharma@amd.com>
> Cc: amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; linux-
> kernel@vger.kernel.org; Joshi, Mukul <Mukul.Joshi@amd.com>; Paneer
> Selvam, Arunpravin <Arunpravin.PaneerSelvam@amd.com>; Khatri, Sunil
> <Sunil.Khatri@amd.com>
> Subject: [PATCH] drm/amdgpu: add vm fault information to devcoredump
>
> Add page fault information to the devcoredump.
>
> Output of devcoredump:
> **** AMDGPU Device Coredump ****
> version: 1
> kernel: 6.7.0-amd-staging-drm-next
> module: amdgpu
> time: 29.725011811
> process_name: soft_recovery_p PID: 1720
>
> Ring timed out details
> IP Type: 0 Ring Name: gfx_0.0.0
>
> [gfxhub] Page fault observed for GPU family:143 Faulty page starting at

I think we should add a separate section for the GPU identification information (family, PCI ids, IP versions, etc.).  For this patch, I think fine to just print the fault address and status.

Alex

> address 0x0000000000000000 Protection fault status register:0x301031
>
> VRAM is lost due to GPU reset!
>
> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
> ---
>  drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 15 ++++++++++++++-
> drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h |  1 +
>  2 files changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
> index 147100c27c2d..d7fea6cdf2f9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
> @@ -203,8 +203,20 @@ amdgpu_devcoredump_read(char *buffer, loff_t
> offset, size_t count,
>                          coredump->ring->name);
>       }
>
> +     if (coredump->fault_info.status) {
> +             struct amdgpu_vm_fault_info *fault_info = &coredump-
> >fault_info;
> +
> +             drm_printf(&p, "\n[%s] Page fault observed for GPU
> family:%d\n",
> +                        fault_info->vmhub ? "mmhub" : "gfxhub",
> +                        coredump->adev->family);
> +             drm_printf(&p, "Faulty page starting at address 0x%016llx\n",
> +                        fault_info->addr);
> +             drm_printf(&p, "Protection fault status register:0x%x\n",
> +                        fault_info->status);
> +     }
> +
>       if (coredump->reset_vram_lost)
> -             drm_printf(&p, "VRAM is lost due to GPU reset!\n");
> +             drm_printf(&p, "\nVRAM is lost due to GPU reset!\n");
>       if (coredump->adev->reset_info.num_regs) {
>               drm_printf(&p, "AMDGPU register dumps:\nOffset:
> Value:\n");
>
> @@ -253,6 +265,7 @@ void amdgpu_coredump(struct amdgpu_device
> *adev, bool vram_lost,
>       if (job) {
>               s_job = &job->base;
>               coredump->ring = to_amdgpu_ring(s_job->sched);
> +             coredump->fault_info = job->vm->fault_info;
>       }
>
>       coredump->adev = adev;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
> index 60522963aaca..3197955264f9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
> @@ -98,6 +98,7 @@ struct amdgpu_coredump_info {
>       struct timespec64               reset_time;
>       bool                            reset_vram_lost;
>       struct amdgpu_ring                      *ring;
> +     struct amdgpu_vm_fault_info     fault_info;
>  };
>  #endif
>
> --
> 2.34.1

Re: [PATCH] drm/amdgpu: add vm fault information to devcoredump

[Khatri, Sunil]

On 3/7/2024 12:51 AM, Deucher, Alexander wrote:
> [Public]
>
>> -----Original Message-----
>> From: Sunil Khatri <sunil.khatri@amd.com>
>> Sent: Wednesday, March 6, 2024 1:20 PM
>> To: Deucher, Alexander <Alexander.Deucher@amd.com>; Koenig, Christian
>> <Christian.Koenig@amd.com>; Sharma, Shashank
>> <Shashank.Sharma@amd.com>
>> Cc: amd-gfx@lists.freedesktop.org; dri-devel@lists.freedesktop.org; linux-
>> kernel@vger.kernel.org; Joshi, Mukul <Mukul.Joshi@amd.com>; Paneer
>> Selvam, Arunpravin <Arunpravin.PaneerSelvam@amd.com>; Khatri, Sunil
>> <Sunil.Khatri@amd.com>
>> Subject: [PATCH] drm/amdgpu: add vm fault information to devcoredump
>>
>> Add page fault information to the devcoredump.
>>
>> Output of devcoredump:
>> **** AMDGPU Device Coredump ****
>> version: 1
>> kernel: 6.7.0-amd-staging-drm-next
>> module: amdgpu
>> time: 29.725011811
>> process_name: soft_recovery_p PID: 1720
>>
>> Ring timed out details
>> IP Type: 0 Ring Name: gfx_0.0.0
>>
>> [gfxhub] Page fault observed for GPU family:143 Faulty page starting at
> I think we should add a separate section for the GPU identification information (family, PCI ids, IP versions, etc.).  For this patch, I think fine to just print the fault address and status.

Noted

Regards
Sunil

> Alex
>
>> address 0x0000000000000000 Protection fault status register:0x301031
>>
>> VRAM is lost due to GPU reset!
>>
>> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 15 ++++++++++++++-
>> drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h |  1 +
>>   2 files changed, 15 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>> index 147100c27c2d..d7fea6cdf2f9 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>> @@ -203,8 +203,20 @@ amdgpu_devcoredump_read(char *buffer, loff_t
>> offset, size_t count,
>>                           coredump->ring->name);
>>        }
>>
>> +     if (coredump->fault_info.status) {
>> +             struct amdgpu_vm_fault_info *fault_info = &coredump-
>>> fault_info;
>> +
>> +             drm_printf(&p, "\n[%s] Page fault observed for GPU
>> family:%d\n",
>> +                        fault_info->vmhub ? "mmhub" : "gfxhub",
>> +                        coredump->adev->family);
>> +             drm_printf(&p, "Faulty page starting at address 0x%016llx\n",
>> +                        fault_info->addr);
>> +             drm_printf(&p, "Protection fault status register:0x%x\n",
>> +                        fault_info->status);
>> +     }
>> +
>>        if (coredump->reset_vram_lost)
>> -             drm_printf(&p, "VRAM is lost due to GPU reset!\n");
>> +             drm_printf(&p, "\nVRAM is lost due to GPU reset!\n");
>>        if (coredump->adev->reset_info.num_regs) {
>>                drm_printf(&p, "AMDGPU register dumps:\nOffset:
>> Value:\n");
>>
>> @@ -253,6 +265,7 @@ void amdgpu_coredump(struct amdgpu_device
>> *adev, bool vram_lost,
>>        if (job) {
>>                s_job = &job->base;
>>                coredump->ring = to_amdgpu_ring(s_job->sched);
>> +             coredump->fault_info = job->vm->fault_info;
>>        }
>>
>>        coredump->adev = adev;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>> index 60522963aaca..3197955264f9 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>> @@ -98,6 +98,7 @@ struct amdgpu_coredump_info {
>>        struct timespec64               reset_time;
>>        bool                            reset_vram_lost;
>>        struct amdgpu_ring                      *ring;
>> +     struct amdgpu_vm_fault_info     fault_info;
>>   };
>>   #endif
>>
>> --
>> 2.34.1

Re: [PATCH] drm/amdgpu: add vm fault information to devcoredump

[Christian König]

Am 06.03.24 um 19:19 schrieb Sunil Khatri:
> Add page fault information to the devcoredump.
>
> Output of devcoredump:
> **** AMDGPU Device Coredump ****
> version: 1
> kernel: 6.7.0-amd-staging-drm-next
> module: amdgpu
> time: 29.725011811
> process_name: soft_recovery_p PID: 1720
>
> Ring timed out details
> IP Type: 0 Ring Name: gfx_0.0.0
>
> [gfxhub] Page fault observed for GPU family:143
> Faulty page starting at address 0x0000000000000000
> Protection fault status register:0x301031
>
> VRAM is lost due to GPU reset!
>
> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
> ---
>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 15 ++++++++++++++-
>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h |  1 +
>   2 files changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
> index 147100c27c2d..d7fea6cdf2f9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
> @@ -203,8 +203,20 @@ amdgpu_devcoredump_read(char *buffer, loff_t offset, size_t count,
>   			   coredump->ring->name);
>   	}
>   
> +	if (coredump->fault_info.status) {
> +		struct amdgpu_vm_fault_info *fault_info = &coredump->fault_info;
> +
> +		drm_printf(&p, "\n[%s] Page fault observed for GPU family:%d\n",
> +			   fault_info->vmhub ? "mmhub" : "gfxhub",
> +			   coredump->adev->family);
> +		drm_printf(&p, "Faulty page starting at address 0x%016llx\n",
> +			   fault_info->addr);
> +		drm_printf(&p, "Protection fault status register:0x%x\n",
> +			   fault_info->status);
> +	}
> +
>   	if (coredump->reset_vram_lost)
> -		drm_printf(&p, "VRAM is lost due to GPU reset!\n");
> +		drm_printf(&p, "\nVRAM is lost due to GPU reset!\n");
>   	if (coredump->adev->reset_info.num_regs) {
>   		drm_printf(&p, "AMDGPU register dumps:\nOffset:     Value:\n");
>   
> @@ -253,6 +265,7 @@ void amdgpu_coredump(struct amdgpu_device *adev, bool vram_lost,
>   	if (job) {
>   		s_job = &job->base;
>   		coredump->ring = to_amdgpu_ring(s_job->sched);
> +		coredump->fault_info = job->vm->fault_info;

That's illegal. The VM pointer might already be stale at this point.

I think you need to add the fault info of the last fault globally in the 
VRAM manager or move this to the process info Shashank is working on.

Regards,
Christian.

>   	}
>   
>   	coredump->adev = adev;
> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
> index 60522963aaca..3197955264f9 100644
> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
> @@ -98,6 +98,7 @@ struct amdgpu_coredump_info {
>   	struct timespec64               reset_time;
>   	bool                            reset_vram_lost;
>   	struct amdgpu_ring			*ring;
> +	struct amdgpu_vm_fault_info	fault_info;
>   };
>   #endif
>   

Re: [PATCH] drm/amdgpu: add vm fault information to devcoredump

[Khatri, Sunil]

On 3/7/2024 1:47 PM, Christian König wrote:
> Am 06.03.24 um 19:19 schrieb Sunil Khatri:
>> Add page fault information to the devcoredump.
>>
>> Output of devcoredump:
>> **** AMDGPU Device Coredump ****
>> version: 1
>> kernel: 6.7.0-amd-staging-drm-next
>> module: amdgpu
>> time: 29.725011811
>> process_name: soft_recovery_p PID: 1720
>>
>> Ring timed out details
>> IP Type: 0 Ring Name: gfx_0.0.0
>>
>> [gfxhub] Page fault observed for GPU family:143
>> Faulty page starting at address 0x0000000000000000
>> Protection fault status register:0x301031
>>
>> VRAM is lost due to GPU reset!
>>
>> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
>> ---
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 15 ++++++++++++++-
>>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h |  1 +
>>   2 files changed, 15 insertions(+), 1 deletion(-)
>>
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c 
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>> index 147100c27c2d..d7fea6cdf2f9 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>> @@ -203,8 +203,20 @@ amdgpu_devcoredump_read(char *buffer, loff_t 
>> offset, size_t count,
>>                  coredump->ring->name);
>>       }
>>   +    if (coredump->fault_info.status) {
>> +        struct amdgpu_vm_fault_info *fault_info = 
>> &coredump->fault_info;
>> +
>> +        drm_printf(&p, "\n[%s] Page fault observed for GPU 
>> family:%d\n",
>> +               fault_info->vmhub ? "mmhub" : "gfxhub",
>> +               coredump->adev->family);
>> +        drm_printf(&p, "Faulty page starting at address 0x%016llx\n",
>> +               fault_info->addr);
>> +        drm_printf(&p, "Protection fault status register:0x%x\n",
>> +               fault_info->status);
>> +    }
>> +
>>       if (coredump->reset_vram_lost)
>> -        drm_printf(&p, "VRAM is lost due to GPU reset!\n");
>> +        drm_printf(&p, "\nVRAM is lost due to GPU reset!\n");
>>       if (coredump->adev->reset_info.num_regs) {
>>           drm_printf(&p, "AMDGPU register dumps:\nOffset:     
>> Value:\n");
>>   @@ -253,6 +265,7 @@ void amdgpu_coredump(struct amdgpu_device 
>> *adev, bool vram_lost,
>>       if (job) {
>>           s_job = &job->base;
>>           coredump->ring = to_amdgpu_ring(s_job->sched);
>> +        coredump->fault_info = job->vm->fault_info;
>
> That's illegal. The VM pointer might already be stale at this point.
>
> I think you need to add the fault info of the last fault globally in 
> the VRAM manager or move this to the process info Shashank is working on.
> Are you saying that during the reset or otherwise a vm which is part 
> of this job could have been freed  and we might have a NULL 
> dereference or invalid reference? Till now based on the resets and 
> pagefaults that i have created till now using the same app which we 
> are using for IH overflow i am able to get the valid vm only.
>
> Assuming  amdgpu_vm is freed for this job or stale, are you suggesting 
> to update this information in adev-> vm_manager along with existing 
> per vm fault_info or only in vm_manager ?
>
> Regards,
> Christian.
>
>>       }
>>         coredump->adev = adev;
>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h 
>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>> index 60522963aaca..3197955264f9 100644
>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>> @@ -98,6 +98,7 @@ struct amdgpu_coredump_info {
>>       struct timespec64               reset_time;
>>       bool                            reset_vram_lost;
>>       struct amdgpu_ring            *ring;
>> +    struct amdgpu_vm_fault_info    fault_info;
>>   };
>>   #endif
>

Re: [PATCH] drm/amdgpu: add vm fault information to devcoredump

[Christian König]

Am 07.03.24 um 09:37 schrieb Khatri, Sunil:
>
> On 3/7/2024 1:47 PM, Christian König wrote:
>> Am 06.03.24 um 19:19 schrieb Sunil Khatri:
>>> Add page fault information to the devcoredump.
>>>
>>> Output of devcoredump:
>>> **** AMDGPU Device Coredump ****
>>> version: 1
>>> kernel: 6.7.0-amd-staging-drm-next
>>> module: amdgpu
>>> time: 29.725011811
>>> process_name: soft_recovery_p PID: 1720
>>>
>>> Ring timed out details
>>> IP Type: 0 Ring Name: gfx_0.0.0
>>>
>>> [gfxhub] Page fault observed for GPU family:143
>>> Faulty page starting at address 0x0000000000000000
>>> Protection fault status register:0x301031
>>>
>>> VRAM is lost due to GPU reset!
>>>
>>> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
>>> ---
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 15 ++++++++++++++-
>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h |  1 +
>>>   2 files changed, 15 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c 
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>>> index 147100c27c2d..d7fea6cdf2f9 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>>> @@ -203,8 +203,20 @@ amdgpu_devcoredump_read(char *buffer, loff_t 
>>> offset, size_t count,
>>>                  coredump->ring->name);
>>>       }
>>>   +    if (coredump->fault_info.status) {
>>> +        struct amdgpu_vm_fault_info *fault_info = 
>>> &coredump->fault_info;
>>> +
>>> +        drm_printf(&p, "\n[%s] Page fault observed for GPU 
>>> family:%d\n",
>>> +               fault_info->vmhub ? "mmhub" : "gfxhub",
>>> +               coredump->adev->family);
>>> +        drm_printf(&p, "Faulty page starting at address 0x%016llx\n",
>>> +               fault_info->addr);
>>> +        drm_printf(&p, "Protection fault status register:0x%x\n",
>>> +               fault_info->status);
>>> +    }
>>> +
>>>       if (coredump->reset_vram_lost)
>>> -        drm_printf(&p, "VRAM is lost due to GPU reset!\n");
>>> +        drm_printf(&p, "\nVRAM is lost due to GPU reset!\n");
>>>       if (coredump->adev->reset_info.num_regs) {
>>>           drm_printf(&p, "AMDGPU register dumps:\nOffset:     
>>> Value:\n");
>>>   @@ -253,6 +265,7 @@ void amdgpu_coredump(struct amdgpu_device 
>>> *adev, bool vram_lost,
>>>       if (job) {
>>>           s_job = &job->base;
>>>           coredump->ring = to_amdgpu_ring(s_job->sched);
>>> +        coredump->fault_info = job->vm->fault_info;
>>
>> That's illegal. The VM pointer might already be stale at this point.
>>
>> I think you need to add the fault info of the last fault globally in 
>> the VRAM manager or move this to the process info Shashank is working 
>> on.
>> Are you saying that during the reset or otherwise a vm which is part 
>> of this job could have been freed  and we might have a NULL 
>> dereference or invalid reference? Till now based on the resets and 
>> pagefaults that i have created till now using the same app which we 
>> are using for IH overflow i am able to get the valid vm only.
>>
>> Assuming  amdgpu_vm is freed for this job or stale, are you 
>> suggesting to update this information in adev-> vm_manager along with 
>> existing per vm fault_info or only in vm_manager ?

Good question. having it both in the VM as well as the VM manager sounds 
like the simplest option for now.

Regards,
Christian.

>>
>> Regards,
>> Christian.
>>
>>>       }
>>>         coredump->adev = adev;
>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h 
>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>>> index 60522963aaca..3197955264f9 100644
>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>>> @@ -98,6 +98,7 @@ struct amdgpu_coredump_info {
>>>       struct timespec64               reset_time;
>>>       bool                            reset_vram_lost;
>>>       struct amdgpu_ring            *ring;
>>> +    struct amdgpu_vm_fault_info    fault_info;
>>>   };
>>>   #endif
>>

Re: [PATCH] drm/amdgpu: add vm fault information to devcoredump

[Khatri, Sunil]

On 3/7/2024 6:10 PM, Christian König wrote:
> Am 07.03.24 um 09:37 schrieb Khatri, Sunil:
>>
>> On 3/7/2024 1:47 PM, Christian König wrote:
>>> Am 06.03.24 um 19:19 schrieb Sunil Khatri:
>>>> Add page fault information to the devcoredump.
>>>>
>>>> Output of devcoredump:
>>>> **** AMDGPU Device Coredump ****
>>>> version: 1
>>>> kernel: 6.7.0-amd-staging-drm-next
>>>> module: amdgpu
>>>> time: 29.725011811
>>>> process_name: soft_recovery_p PID: 1720
>>>>
>>>> Ring timed out details
>>>> IP Type: 0 Ring Name: gfx_0.0.0
>>>>
>>>> [gfxhub] Page fault observed for GPU family:143
>>>> Faulty page starting at address 0x0000000000000000
>>>> Protection fault status register:0x301031
>>>>
>>>> VRAM is lost due to GPU reset!
>>>>
>>>> Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
>>>> ---
>>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 15 ++++++++++++++-
>>>>   drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h |  1 +
>>>>   2 files changed, 15 insertions(+), 1 deletion(-)
>>>>
>>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c 
>>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>>>> index 147100c27c2d..d7fea6cdf2f9 100644
>>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
>>>> @@ -203,8 +203,20 @@ amdgpu_devcoredump_read(char *buffer, loff_t 
>>>> offset, size_t count,
>>>>                  coredump->ring->name);
>>>>       }
>>>>   +    if (coredump->fault_info.status) {
>>>> +        struct amdgpu_vm_fault_info *fault_info = 
>>>> &coredump->fault_info;
>>>> +
>>>> +        drm_printf(&p, "\n[%s] Page fault observed for GPU 
>>>> family:%d\n",
>>>> +               fault_info->vmhub ? "mmhub" : "gfxhub",
>>>> +               coredump->adev->family);
>>>> +        drm_printf(&p, "Faulty page starting at address 0x%016llx\n",
>>>> +               fault_info->addr);
>>>> +        drm_printf(&p, "Protection fault status register:0x%x\n",
>>>> +               fault_info->status);
>>>> +    }
>>>> +
>>>>       if (coredump->reset_vram_lost)
>>>> -        drm_printf(&p, "VRAM is lost due to GPU reset!\n");
>>>> +        drm_printf(&p, "\nVRAM is lost due to GPU reset!\n");
>>>>       if (coredump->adev->reset_info.num_regs) {
>>>>           drm_printf(&p, "AMDGPU register dumps:\nOffset:     
>>>> Value:\n");
>>>>   @@ -253,6 +265,7 @@ void amdgpu_coredump(struct amdgpu_device 
>>>> *adev, bool vram_lost,
>>>>       if (job) {
>>>>           s_job = &job->base;
>>>>           coredump->ring = to_amdgpu_ring(s_job->sched);
>>>> +        coredump->fault_info = job->vm->fault_info;
>>>
>>> That's illegal. The VM pointer might already be stale at this point.
>>>
>>> I think you need to add the fault info of the last fault globally in 
>>> the VRAM manager or move this to the process info Shashank is 
>>> working on.
>>> Are you saying that during the reset or otherwise a vm which is part 
>>> of this job could have been freed  and we might have a NULL 
>>> dereference or invalid reference? Till now based on the resets and 
>>> pagefaults that i have created till now using the same app which we 
>>> are using for IH overflow i am able to get the valid vm only.
>>>
>>> Assuming  amdgpu_vm is freed for this job or stale, are you 
>>> suggesting to update this information in adev-> vm_manager along 
>>> with existing per vm fault_info or only in vm_manager ?
>
> Good question. having it both in the VM as well as the VM manager 
> sounds like the simplest option for now.

Let me update the patch then with information in VM manager.

Regards
Sunil

>
> Regards,
> Christian.
>
>>>
>>> Regards,
>>> Christian.
>>>
>>>>       }
>>>>         coredump->adev = adev;
>>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h 
>>>> b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>>>> index 60522963aaca..3197955264f9 100644
>>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.h
>>>> @@ -98,6 +98,7 @@ struct amdgpu_coredump_info {
>>>>       struct timespec64               reset_time;
>>>>       bool                            reset_vram_lost;
>>>>       struct amdgpu_ring            *ring;
>>>> +    struct amdgpu_vm_fault_info    fault_info;
>>>>   };
>>>>   #endif
>>>
>