kernel/linux.git/drivers/gpu/drm/amd/amdkfd/kfd_device.c, branch linux-7.0.y

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/amdkfd: Add domain parameter to alloc kernel BO

2026-01-14T19:28:59+00:00

To allocate kernel BO from VRAM domain for MQD in the following patch. No functional change because kernel BO allocate all from GTT domain. Rename amdgpu_amdkfd_alloc_gtt_mem to amdgpu_amdkfd_alloc_kernel_mem Rename amdgpu_amdkfd_free_gtt_mem to amdgpu_amdkfd_free_kernel_mem Rename mem_kfd_mem_obj gtt_mem to mem Signed-off-by: Philip Yang Reviewed-by: Kent Russell Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: kfd driver supports hot unplug/replug amdgpu devices

2026-01-14T19:28:49+00:00

This patch allows kfd driver function correctly when AMD gpu devices got unplug/replug at run time. When an AMD gpu device got unplug kfd driver gracefully terminates existing kfd processes after stops all queues by sending SIGBUS to user process. After that user space can still use remaining AMD gpu devices. When all AMD gpu devices at system got removed kfd driver will not response new requests. Unplugged AMD gpu devices can be re-plugged. kfd driver will use added devices to function as usual. The purpose of this patch is having kfd driver behavior as expected during and after AMD gpu devices unplug/replug at run time. Signed-off-by: Xiaogang Chen Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdkfd: Add back CWSR trap handler for GFX 12.1

2026-01-05T21:59:56+00:00

CWSR Trap handler for GFX 12.1 was missed when merging changes from 6.14 NPI branch to 6.16 NPI branch. This change adds back the CWSR trap handler for GFX 12.1. Signed-off-by: Mukul Joshi Reviewed-by: Alex Sierra Signed-off-by: Alex Deucher

drm/amdkfd: Add gfx_v12_1_kfd2kgd interface for GFX12_1

2026-01-05T21:59:55+00:00

Create new kfd2kgd interface for gfx v12_1, based on gfx v12. Support register program accoding to xcc id. V2: Fix SDMA register address for muti-xcc. Signed-off-by: Likun Gao Reviewed-by: Mukul Joshi Signed-off-by: Alex Deucher

drm/amdgpu: add support for SDMA IP version 6.1.4

2026-01-05T21:27:39+00:00

This initializes SDMA IP version 6.1.4. Reviewed-by: Mario Limonciello Signed-off-by: Tim Huang Signed-off-by: Alex Deucher

drm/amdgpu: add support for GC IP version 11.5.4

2026-01-05T21:27:34+00:00

This initializes GC IP version 11.5.4. v2: squash in RLC offset fix Reviewed-by: Mario Limonciello Signed-off-by: Tim Huang Signed-off-by: Alex Deucher

drm/amdkfd: Don't partition VMID space on GFX 12.1

2026-01-05T21:27:08+00:00

There is no need to partition VMID space on GFX 12.1 when operating in CPX mode as SDMA is not sharing MMHUB on GFX 12.1. Signed-off-by: Mukul Joshi Reviewed-by: Alex Sierra Reviewed-by: Michael Chen Signed-off-by: Alex Deucher

drm/amdgpu: Add interrupt handler for GFX 12.1.0

2025-12-10T22:38:56+00:00

Add a separate interrupt handler for handling interrupts, both retry and no-retry, for GFX 12.1.0. Signed-off-by: Mukul Joshi Reviewed-by: Philip Yang Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher