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| author | Lang Yu <lang.yu@amd.com> | 2026-01-26 10:08:25 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2026-01-29 12:26:26 -0500 |
| commit | 82a9ab369a6785499ad18453bb76b1128403122e (patch) | |
| tree | 392c8fec231f945361d61079f9c5c72ec66f191f /include/linux/i2c/git@git.tavy.me:linux.git | |
| parent | 8079b87c02e531cc91601f72ea8336dd2262fdf1 (diff) | |
drm/amdgpu: Add a helper macro to align mqd size
MES FW uses address(mqd_addr + sizeof(struct mqd) + 3*sizeof(uint32_t))
as fence address and writes a 32 bit fence value to this address. Driver
needs to allocate some extra memory(at least 4 DWs) in addition to
sizeof(struct mqd) as mqd memory(limited to gfx/compute/sdma queue).
For gfx11/12, sizeof(struct mqd) < PAGE_SIZE, KGD allocates mqd memory with
PAGE_SIZE aligned works. For gfx12.1, sizeof(struct mqd) == PAGE_SIZE,
it doesn't work.
KFD mqd manager hardcodes mqd size to PAGE_SIZE/MQD_SIZE across different
IP versions to solve this issue.
To avoid hardcoding in differnet places and across different IP versions.
Let's use AMDGPU_MQD_SIZE_ALIGN instead. It is used in two places.
1. mqd memory alloction
2. mqd stride handling for multi xcc config
v2: Use AMDGPU_GPU_PAGE_ALIGN. (Mukul)
Signed-off-by: Lang Yu <lang.yu@amd.com>
Reviewed-by: David Belanger <david.belanger@amd.com> (v1)
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Mukul Joshi <mukul.joshi@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'include/linux/i2c/git@git.tavy.me:linux.git')
0 files changed, 0 insertions, 0 deletions
