drm/amdgpu: adding device coredump support

Added device coredump information:
- Kernel version
- Module
- Time
- VRAM status
- Guilty process name and PID
- GPU register dumps
v1 -> v2: Variable name change
v1 -> v2: NULL check
v1 -> v2: Code alignment
v1 -> v2: Adding dummy amdgpu_devcoredump_free
v1 -> v2: memset reset_task_info to zero
v2 -> v3: add CONFIG_DEV_COREDUMP for variables
v2 -> v3: remove NULL check on amdgpu_devcoredump_read

Signed-off-by: Somalapuram Amaranath <Amaranath.Somalapuram@amd.com>
Reviewed-by: Shashank Sharma <Shashank.sharma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 5 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index 1525fa1d6798..c67069645a2c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1046,6 +1046,11 @@ struct amdgpu_device {
 	uint32_t                        *reset_dump_reg_list;
 	uint32_t			*reset_dump_reg_value;
 	int                             num_regs;
+#ifdef CONFIG_DEV_COREDUMP
+	struct amdgpu_task_info         reset_task_info;
+	bool                            reset_vram_lost;
+	struct timespec64               reset_time;
+#endif
 
 	bool                            scpm_enabled;
 	uint32_t                        scpm_status;