diff options
| author | David Francis <David.Francis@amd.com> | 2023-10-12 10:35:20 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-10-27 14:15:16 -0400 |
| commit | 142262a1c02ad4d334ca1152dc4a0f6db3ef3bfc (patch) | |
| tree | c999569dfc17380436eab0628c41b8aa4590281e /drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | |
| parent | a395f7ffcebe59477d80f049889cb652d80db040 (diff) | |
| download | lwn-142262a1c02ad4d334ca1152dc4a0f6db3ef3bfc.tar.gz lwn-142262a1c02ad4d334ca1152dc4a0f6db3ef3bfc.zip | |
drm/amdgpu: Add EXT_COHERENT support for APU and NUMA systems
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c index 9b025fd17b84..a2287bb25223 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vm_pt.c @@ -843,7 +843,7 @@ static void amdgpu_vm_pte_update_flags(struct amdgpu_vm_update_params *params, */ if ((flags & AMDGPU_PTE_SYSTEM) && (adev->flags & AMD_IS_APU) && adev->gmc.gmc_funcs->override_vm_pte_flags && - num_possible_nodes() > 1 && !params->pages_addr) + num_possible_nodes() > 1 && !params->pages_addr && params->allow_override) amdgpu_gmc_override_vm_pte_flags(adev, params->vm, addr, &flags); params->vm->update_funcs->update(params, pt, pe, addr, count, incr, |