drm/amdgpu: Add EXT_COHERENT support for APU and NUMA systems

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On gfx943 APU, EXT_COHERENT should give MTYPE_CC for local and
MTYPE_UC for nonlocal memory.

On NUMA systems, local memory gets the local mtype, set by an
override callback. If EXT_COHERENT is set, memory will be set as
MTYPE_UC by default, with local memory MTYPE_CC.

Add an option in the override function for this case, and
add a check to ensure it is not used on UNCACHED memory.

V2: Combined APU and NUMA code into one patch
V3: Fixed a potential nullptr in amdgpu_vm_bo_update

Signed-off-by: David Francis <David.Francis@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:

David Francis 2023-10-12 10:35:20 -04:00 • committed by Alex Deucher

parent a395f7ffce

commit 142262a1c0

5 changed files with 45 additions and 23 deletions

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17

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

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8

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

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2

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

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33

drivers/gpu/drm/amd/amdgpu/gmc_v9_0.c

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8

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

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