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drm/amdgpu: move static CSA address to top of address space v2

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Move the CSA area to the top of the VA space to avoid clashing with
HMM/ATC in the lower range on GFX9.

v2: wrong sign noticed by Roger, rebase on CSA_VADDR cleanup, handle VA
hole on GFX9 as well.

Signed-off-by: Christian König <christian.koenig@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Monk Liu <monk.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König
2018-01-22 11:25:48 +01:00
committed by Alex Deucher
parent c1f2fb6b63
commit 6f05c4e9d1
4 changed files with 26 additions and 13 deletions
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5
drivers/gpu/drm/amd/amdgpu/amdgpu_virt.h
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@@ -251,8 +251,7 @@ struct amdgpu_virt {
uint32_t gim_feature;
};
#define AMDGPU_CSA_SIZE (8 * 1024)
#define AMDGPU_CSA_VADDR (AMDGPU_VA_RESERVED_SIZE - AMDGPU_CSA_SIZE)
#define AMDGPU_CSA_SIZE (8 * 1024)
#define amdgpu_sriov_enabled(adev) \
((adev)->virt.caps & AMDGPU_SRIOV_CAPS_ENABLE_IOV)
@@ -279,6 +278,8 @@ static inline bool is_virtual_machine(void)
}
struct amdgpu_vm;
uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev);
bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev);
int amdgpu_allocate_static_csa(struct amdgpu_device *adev);
int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,