3 Commits

Author	SHA1	Message	Date
Hawking Zhang	bc8f6d42b1	drm/amdgpu: Fix null pointer dereference ... amdgpu_reg_state_sysfs_fini could be invoked at the time when asic_func is even not initialized, i.e., amdgpu_discovery_init fails for some reason. Signed-off-by: Hawking Zhang <Hawking.Zhang@amd.com> Reviewed-by: Lijo Lazar <lijo.lazar@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org	2024-01-25 15:45:11 -05:00
Lijo Lazar	af39e6f4d8	drm/amdgpu: Add reg_state sysfs attribute ... Add reg_state attribute to fetch the register snapshot of different IPs like XGMI, WAFL,PCIE and USR. To get a snapshot for a particular IP 1) Open the sysfs file 2) Seek to the offset as defined in amdgpu_sysfs_reg_offset 3) Read Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>	2023-11-29 16:49:35 -05:00
Alex Deucher	9a5095e785	drm/amdgpu: add amdgpu_reg_state.h ... This header defines the reg state structures exposed via sysfs for umr debugging. v2: add content type Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Lijo Lazar <lijo.lazar@amd.com> Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>	2023-11-29 16:49:24 -05:00