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Message-Id: <20240307165932.3856952-3-sunil.khatri@amd.com>
Date: Thu, 7 Mar 2024 22:29:32 +0530
From: Sunil Khatri <sunil.khatri@....com>
To: Alex Deucher <alexander.deucher@....com>,
Christian König <christian.koenig@....com>,
Shashank Sharma <shashank.sharma@....com>
Cc: amd-gfx@...ts.freedesktop.org, dri-devel@...ts.freedesktop.org,
linux-kernel@...r.kernel.org, Mukul Joshi <mukul.joshi@....com>,
Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@....com>,
Sunil Khatri <sunil.khatri@....com>
Subject: [PATCH 2/2] 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
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@....com>
---
drivers/gpu/drm/amd/amdgpu/amdgpu_reset.c | 14 +++++++++++++-
1 file changed, 13 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..dd39e614d907 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->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",
+ 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");
--
2.34.1
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