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
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@xxxxxxx>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 12 ++++++++++++
1 file changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
index 147100c27c2d..6d059f853adc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c
@@ -203,6 +203,18 @@ amdgpu_devcoredump_read(char *buffer, loff_t offset, size_t count,
coredump->ring->name);
}
+ if (coredump->adev) {
+ struct amdgpu_vm_fault_info *fault_info =
+ &coredump->adev->vm_manager.fault_info;
+
+ drm_printf(&p, "\n[%s] Page fault observed\n",
+ fault_info->vmhub ? "mmhub" : "gfxhub");
+ drm_printf(&p, "Faulty page starting at address: 0x%016llx\n",
+ fault_info->addr);
+ drm_printf(&p, "Protection fault status register: 0x%x\n\n",
+ fault_info->status);
+ }
+
if (coredump->reset_vram_lost)
drm_printf(&p, "VRAM is lost due to GPU reset!\n");
if (coredump->adev->reset_info.num_regs) {
--
2.34.1
