drm/amdgpu: Use MTYPE_UC for ext-coherent local memory on AID A0 non-SPX

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On GFX 12.1 AID A0, extended-scope fine-grained local HBM must be
mapped MTYPE_UC when the device is in DPX, QPX or CPX compute partition
mode. In SPX mode the local MTYPE (MTYPE_NC by default) is kept.
Remote VRAM and system memory already use MTYPE_UC.

Signed-off-by: Mukul Joshi <mukul.joshi@amd.com>
Reviewed-by: David Yat Sin <david.yatsin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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Mukul Joshi 2026-09-28 16:23:05 -04:00 • committed by Alex Deucher

parent 9a0cdbdb08

commit 4f9ebec9ca

2 changed files with 25 additions and 5 deletions

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13

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

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17

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

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