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| author | Christian König <christian.koenig@amd.com> | 2018-01-22 13:25:48 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2018-02-19 22:18:48 +0300 |
| commit | 6f05c4e9d1a1a743eca76ddbad788386d7bb534e (patch) | |
| tree | e0a0fcc298614661f925a0cfc8db73acf54c14d0 /drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | |
| parent | c1f2fb6b6371980dfdaea1ceba7269ccac6fda3f (diff) | |
| download | linux-6f05c4e9d1a1a743eca76ddbad788386d7bb534e.tar.xz | |
drm/amdgpu: move static CSA address to top of address space v2
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c | 24 |
1 files changed, 18 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c index e7dfb7b44b4b..b832651d2137 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_virt.c @@ -24,6 +24,18 @@ #include "amdgpu.h" #define MAX_KIQ_REG_WAIT 100000000 /* in usecs */ +uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev) +{ + uint64_t addr = adev->vm_manager.max_pfn << AMDGPU_GPU_PAGE_SHIFT; + + addr -= AMDGPU_VA_RESERVED_SIZE; + + if (addr >= AMDGPU_VA_HOLE_START) + addr |= AMDGPU_VA_HOLE_END; + + return addr; +} + bool amdgpu_virt_mmio_blocked(struct amdgpu_device *adev) { /* By now all MMIO pages except mailbox are blocked */ @@ -55,14 +67,14 @@ void amdgpu_free_static_csa(struct amdgpu_device *adev) { /* * amdgpu_map_static_csa should be called during amdgpu_vm_init - * it maps virtual address "AMDGPU_VA_RESERVED_SIZE - AMDGPU_CSA_SIZE" - * to this VM, and each command submission of GFX should use this virtual - * address within META_DATA init package to support SRIOV gfx preemption. + * it maps virtual address amdgpu_csa_vaddr() to this VM, and each command + * submission of GFX should use this virtual address within META_DATA init + * package to support SRIOV gfx preemption. */ - int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm, struct amdgpu_bo_va **bo_va) { + uint64_t csa_addr = amdgpu_csa_vaddr(adev) & AMDGPU_VA_HOLE_MASK; struct ww_acquire_ctx ticket; struct list_head list; struct amdgpu_bo_list_entry pd; @@ -90,7 +102,7 @@ int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm, return -ENOMEM; } - r = amdgpu_vm_alloc_pts(adev, (*bo_va)->base.vm, AMDGPU_CSA_VADDR, + r = amdgpu_vm_alloc_pts(adev, (*bo_va)->base.vm, csa_addr, AMDGPU_CSA_SIZE); if (r) { DRM_ERROR("failed to allocate pts for static CSA, err=%d\n", r); @@ -99,7 +111,7 @@ int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm, return r; } - r = amdgpu_vm_bo_map(adev, *bo_va, AMDGPU_CSA_VADDR, 0, AMDGPU_CSA_SIZE, + r = amdgpu_vm_bo_map(adev, *bo_va, csa_addr, 0, AMDGPU_CSA_SIZE, AMDGPU_PTE_READABLE | AMDGPU_PTE_WRITEABLE | AMDGPU_PTE_EXECUTABLE); |