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drm/amdgpu: use HMM callback to replace mmu notifier

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Replace our MMU notifier with hmm_mirror_ops.sync_cpu_device_pagetables
callback. Enable CONFIG_HMM and CONFIG_HMM_MIRROR as a dependency in
DRM_AMDGPU_USERPTR Kconfig.

It supports both KFD userptr and gfx userptr paths.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Philip Yang
2018-07-23 17:45:46 -04:00
committed by Alex Deucher
parent e14ba95b90
commit 2c5a51f570
4 changed files with 74 additions and 100 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_mn.h
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@@ -34,7 +34,7 @@ enum amdgpu_mn_type {
AMDGPU_MN_TYPE_HSA,
};
#if defined(CONFIG_MMU_NOTIFIER)
#if defined(CONFIG_HMM_MIRROR)
void amdgpu_mn_lock(struct amdgpu_mn *mn);
void amdgpu_mn_unlock(struct amdgpu_mn *mn);
struct amdgpu_mn *amdgpu_mn_get(struct amdgpu_device *adev,