kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_ring_mux.c, 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

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

treewide, timers: Rename from_timer() to timer_container_of()

2025-06-08T07:07:37+00:00

Move this API to the canonical timer_*() namespace. [ tglx: Redone against pre rc1 ] Signed-off-by: Ingo Molnar Signed-off-by: Thomas Gleixner Link: https://lore.kernel.org/all/aB2X0jCKQO56WdMt@gmail.com

treewide: Switch/rename to timer_delete[_sync]()

2025-04-05T08:30:12+00:00

timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree over and remove the historical wrapper inlines. Conversion was done with coccinelle plus manual fixups where necessary. Signed-off-by: Thomas Gleixner Signed-off-by: Ingo Molnar

drm/amdgpu: Return earlier in amdgpu_sw_ring_ib_end if mcbp is off

2024-08-16T18:17:31+00:00

As we don't trigger preemption is sw ring muxer when mcbp is disabled,so return earlier in amdgpu_sw_ring_ib_end function if mcbp is disabled ,not required to call amdgpu_ring_mux_end_ib Signed-off-by: Soham Dandapat Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Simplify the allocation of mux_chunk slab caches

2024-02-22T15:28:24+00:00

Use the new KMEM_CACHE() macro instead of direct kmem_cache_create to simplify the creation of SLAB caches. Reviewed-by: Christian König Signed-off-by: Kunwu Chan Signed-off-by: Alex Deucher

drm/amdgpu: disable mcbp if parameter zero is set

2023-08-16T19:46:33+00:00

The parameter amdgpu_mcbp shall have priority against the default value calculated from the chip version. User could disable mcbp by setting the parameter mcbp as zero. v2: do not trigger preemption in sw ring muxer when mcbp is disabled. Signed-off-by: Jiadong Zhu Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Skip mark offset for high priority rings

2023-06-23T19:31:50+00:00

Only low priority rings are using chunks to save the offset. Bypass the mark offset callings from high priority rings. Signed-off-by: Jiadong Zhu Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Modify indirect buffer packages for resubmission

2023-06-09T16:44:15+00:00

When the preempted IB frame resubmitted to cp, we need to modify the frame data including: 1. set PRE_RESUME 1 in CONTEXT_CONTROL. 2. use meta data(DE and CE) read from CSA in WRITE_DATA. Add functions to save the location the first time IBs emitted and callback to patch the package when resubmission happens. Signed-off-by: Jiadong Zhu Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: Make amdgpu_ring_mux functions as static

2022-12-06T15:17:49+00:00

lkp robot reported missing-prototypes and unused-but-set-variable warnings on some functions of amdgpu_mcbp_mux.c. Make them static and remove the unused variable. Reported-by: kernel test robot Signed-off-by: Jiadong Zhu Reviewed-by: Christian König Signed-off-by: Alex Deucher