drm/amdgpu: add mtype_remote module parameter

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Add an amdgpu_mtype_remote module parameter so the MTYPE used for remote
memory accesses can be overridden. For now only MTYPE_NC and MTYPE_UC
are selectable (0 = MTYPE_NC, 1 = MTYPE_UC); it defaults to the
ASIC-dependent value. Currently, it is used only for GFX 12.1.

The MTYPEs resolved for both local and remote memory are logged once.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Mukul Joshi 2026-07-09 15:46:46 -04:00 • committed by Alex Deucher

parent dbec62b36b

commit 05d8d181c9

4 changed files with 32 additions and 18 deletions

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1

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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7

drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c

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34

drivers/gpu/drm/amd/amdgpu/gmc_v12_1.c

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8

drivers/gpu/drm/amd/amdkfd/kfd_svm.c

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