kernel/linux.git/drivers/gpu/drm/amd/ras/ras_mgr, branch linux-7.0.y

Convert more 'alloc_obj' cases to default GFP_KERNEL arguments

2026-02-22T04:03:00+00:00

This converts some of the visually simpler cases that have been split over multiple lines. I only did the ones that are easy to verify the resulting diff by having just that final GFP_KERNEL argument on the next line. Somebody should probably do a proper coccinelle script for this, but for me the trivial script actually resulted in an assertion failure in the middle of the script. I probably had made it a bit _too_ trivial. So after fighting that far a while I decided to just do some of the syntactically simpler cases with variations of the previous 'sed' scripts. The more syntactically complex multi-line cases would mostly really want whitespace cleanup anyway. Signed-off-by: Linus Torvalds

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

drm/amd/ras: Support physical address convert

2026-01-05T21:26:12+00:00

Support physical address convert to current NPS pages in uniras. Signed-off-by: Jinzhou Su Reviewed-by: YiPeng Chai Signed-off-by: Alex Deucher

drm/amd/ras: Add vram_type to ras_ta_init_flags

2025-12-10T22:38:13+00:00

Add vram_type to ras_ta_init_flags. Signed-off-by: Candice Li Reviewed-by: Tao Zhou Signed-off-by: Alex Deucher

drm/amd/ras: Reduce stack usage in amdgpu_virt_ras_get_cper_records()

2025-12-10T22:37:50+00:00

amdgpu_virt_ras_get_cper_records() was using a large stack array of ras_log_info pointers. This contributed to the frame size warning on this function. Replace the fixed-size stack array: struct ras_log_info *trace[MAX_RECORD_PER_BATCH]; with a heap-allocated array using kcalloc(). We free the trace buffer together with out_buf on all exit paths. If allocation of trace or out_buf fails, we return a generic RAS error code. This reduces stack usage and keeps the runtime behaviour unchanged. Fixes: stack frame size: 1112 bytes (limit: 1024) 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: Compatible with legacy sriov host

2025-12-08T18:56:34+00:00

If sriov host is legacy, the guest uniras will be disabled. Signed-off-by: YiPeng Chai Reviewed-by: Tao Zhou Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amd/ras: Add sriov ras preprocessing before gpu reset

2025-12-08T18:56:34+00:00

Sriov host may clear all VF commands registered to auto update list during VF reset, set ecc.auto_uUpdate block to false before VF reset, and after VF reset is complete, RAS_CMD__GET_ALL_BLOCK_ECC_STATUS command will be re-registered to auto update list of sriov host. Signed-off-by: YiPeng Chai Reviewed-by: Tao Zhou Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amd/ras: Support high-frequency querying sriov ras block error count

2025-12-08T18:56:33+00:00

Support high-frequency querying sriov ras block error count: 1. Create shared memory and fills it with RAS_CMD__GET_LAL_LOC_STATUS ras command. 2. The RAS_CMD_GET_ALL_BLOCK_ECC_STATUS command and shared memory are registered to sriov host ras auto-update list via RAS_CMD_SET_CMD_AUTO_UPDATE command. 3. Once sriov host detects ras error, it will automatically execute RAS_CMD__GET_ALL_BLOCK_ECC_STATUS command and write the result to shared memory. Signed-off-by: YiPeng Chai Reviewed-by: Tao Zhou Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amd/ras: Add ras command to retrieve cper data from sriov host

2025-12-08T18:56:33+00:00

In order to reduce the number of interactions with sriov host and the amount of data exchanged, a set of ras commands is first used to obtain the raw data used to generate cper from the host, then, guest driver generates cper based on the obtained raw data. Signed-off-by: YiPeng Chai Reviewed-by: Tao Zhou Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher