kernel/linux.git/drivers/gpu/drm/amd/ras, branch master

drm/amdgpu: Add host driver reserved-region

2026-04-03T17:50:01+00:00

Use reserve region helpers for initializing/reserving host driver reserved region in virtualization environment. Signed-off-by: Lijo Lazar Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Add fw vram usage reserve-region

2026-04-03T17:49:58+00:00

Use reserve region helpers for initializing/reserving firmware usage region in virtualized environments. Signed-off-by: Lijo Lazar Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amd/ras: enable uniras via IP version check

2026-04-03T17:49:23+00:00

enable uniras via IP version check Signed-off-by: Ce Sun Reviewed-by: YiPeng Chai Signed-off-by: Alex Deucher

drm/amd/ras: Add input pointer validation in ras core helpers

2026-03-23T18:08:01+00:00

Add NULL checks for helper input/output pointers that are directly dereferenced, such as tm, seqno, dev_info and init_config. Cc: Tao Zhou Cc: YiPeng Chai Cc: Dan Carpenter Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: YiPeng Chai Signed-off-by: Alex Deucher

drm/amd/ras: Add NULL checks for ras_core sys_fn callbacks

2026-03-23T18:06:07+00:00

Some ras core helper functions access ras_core and its callback table (sys_fn) without validating them first. Cc: Tao Zhou Cc: YiPeng Chai Cc: Dan Carpenter Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: YiPeng Chai Signed-off-by: Alex Deucher

drm/amd/ras: Remove redundant NULL check in pending bad-bank list iteration

2026-03-23T18:02:58+00:00

ras_umc_log_pending_bad_bank() walks through a list of pending ECC bad-bank entries. These entries are saved when a bad-bank error cannot be processed immediately, for example during a GPU reset. Later, this function iterates over the pending list and retries logging each bad-bank error. If logging succeeds, the entry is removed from the list and the memory for that node is freed. The loop uses list_for_each_entry_safe(), which already guarantees that ecc_node points to a valid list entry while the loop body is executing. Checking "ecc_node &&" inside the loop is therefore unnecessary and redundant. Fixes the below: drivers/gpu/drm/amd/amdgpu/../ras/rascore/ras_umc.c:225 ras_umc_log_pending_bad_bank() warn: variable dereferenced before check 'ecc_node' (see line 223) Fixes: 7a3f9c0992c4 ("drm/amd/ras: Add umc common ras functions") Cc: Dan Carpenter Cc: YiPeng Chai Cc: Tao Zhou Cc: Hawking Zhang Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: YiPeng Chai Signed-off-by: Alex Deucher

drm/amd/ras: Fix NULL deref in ras_core_get_utc_second_timestamp()

2026-03-17T21:42:09+00:00

ras_core_get_utc_second_timestamp() retrieves the current UTC timestamp (in seconds since the Unix epoch) through a platform-specific RAS system callback and is used for timestamping RAS error events. The function checks ras_core in the conditional statement before calling the sys_fn callback. However, when the condition fails, the function prints an error message using ras_core->dev. If ras_core is NULL, this can lead to a potential NULL pointer dereference when accessing ras_core->dev. Add an early NULL check for ras_core at the beginning of the function and return 0 when the pointer is not valid. This prevents the dereference and makes the control flow clearer. Fixes: 13c91b5b4378 ("drm/amd/ras: Add rascore unified interface function") Cc: YiPeng Chai Cc: Dan Carpenter Cc: Tao Zhou Cc: Hawking Zhang Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: YiPeng Chai Signed-off-by: Alex Deucher

drm/amd/ras: Fix NULL deref in ras_core_ras_interrupt_detected()

2026-03-17T14:47:17+00:00

Fixes a NULL pointer dereference when ras_core is NULL and ras_core->dev is accessed in the error path. Fixes: 13c91b5b4378 ("drm/amd/ras: Add rascore unified interface function") Reported by: Dan Carpenter Cc: YiPeng Chai Cc: Tao Zhou Cc: Hawking Zhang Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: Tao Zhou Signed-off-by: Alex Deucher

drm/amd/ras: Pass ras poison consumption message to sriov host

2026-03-17T14:37:51+00:00

Pass ras poison consumption message to sriov host. Signed-off-by: YiPeng Chai Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amd/ras: Add unified interface to handle ras interrupts

2026-03-17T14:33:04+00:00

Add unified interface to handle ras interrupts, some redundant interrupt function interfaces will be removed later. Signed-off-by: YiPeng Chai Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher