kernel/linux.git/drivers/gpu/drm/amd/include/amdgpu_reg_state.h, branch v6.12.80Linux kernel stable tree (mirror)https://git.radix-linux.su/kernel/linux.git/atom?h=v6.12.802024-01-25T20:45:11+00:00drm/amdgpu: Fix null pointer dereference2024-01-25T20:45:11+00:00Hawking ZhangHawking.Zhang@amd.com2024-01-22T09:38:23+00:00urn:sha1:bc8f6d42b1334f486980d57c8d12f3128d30c2e3
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
drm/amdgpu: Add reg_state sysfs attribute2023-11-29T21:49:35+00:00Lijo Lazarlijo.lazar@amd.com2023-10-06T08:19:03+00:00urn:sha1:af39e6f4d8032b101907cc2ac12a21a778da568d
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>
drm/amdgpu: add amdgpu_reg_state.h2023-11-29T21:49:24+00:00Alex Deucheralexander.deucher@amd.com2023-09-13T16:00:44+00:00urn:sha1:9a5095e785c38ab8d9f3d91f4ee76f4f73ec4adc
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>