2 * Copyright 2016 Advanced Micro Devices, Inc.
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5 * copy of this software and associated documentation files (the "Software"),
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9 * Software is furnished to do so, subject to the following conditions:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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25 #include <drm/drm_exec.h>
29 uint64_t amdgpu_csa_vaddr(struct amdgpu_device *adev)
31 uint64_t addr = AMDGPU_VA_RESERVED_CSA_START(adev);
33 addr = amdgpu_gmc_sign_extend(addr);
38 int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo,
39 u32 domain, uint32_t size)
43 amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
50 adev->virt.csa_cpu_addr = ptr;
54 void amdgpu_free_static_csa(struct amdgpu_bo **bo)
56 amdgpu_bo_free_kernel(bo, NULL, NULL);
60 * amdgpu_map_static_csa should be called during amdgpu_vm_init
61 * it maps virtual address amdgpu_csa_vaddr() to this VM, and each command
62 * submission of GFX should use this virtual address within META_DATA init
63 * package to support SRIOV gfx preemption.
65 int amdgpu_map_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
66 struct amdgpu_bo *bo, struct amdgpu_bo_va **bo_va,
67 uint64_t csa_addr, uint32_t size)
72 drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0);
73 drm_exec_until_all_locked(&exec) {
74 r = amdgpu_vm_lock_pd(vm, &exec, 0);
76 r = drm_exec_lock_obj(&exec, &bo->tbo.base);
77 drm_exec_retry_on_contention(&exec);
79 DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r);
84 *bo_va = amdgpu_vm_bo_add(adev, vm, bo);
90 r = amdgpu_vm_bo_map(adev, *bo_va, csa_addr, 0, size,
91 AMDGPU_PTE_READABLE | AMDGPU_PTE_WRITEABLE |
92 AMDGPU_PTE_EXECUTABLE);
95 DRM_ERROR("failed to do bo_map on static CSA, err=%d\n", r);
96 amdgpu_vm_bo_del(adev, *bo_va);
101 drm_exec_fini(&exec);
105 int amdgpu_unmap_static_csa(struct amdgpu_device *adev, struct amdgpu_vm *vm,
106 struct amdgpu_bo *bo, struct amdgpu_bo_va *bo_va,
109 struct drm_exec exec;
112 drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT, 0);
113 drm_exec_until_all_locked(&exec) {
114 r = amdgpu_vm_lock_pd(vm, &exec, 0);
116 r = drm_exec_lock_obj(&exec, &bo->tbo.base);
117 drm_exec_retry_on_contention(&exec);
119 DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r);
124 r = amdgpu_vm_bo_unmap(adev, bo_va, csa_addr);
126 DRM_ERROR("failed to do bo_unmap on static CSA, err=%d\n", r);
130 amdgpu_vm_bo_del(adev, bo_va);
133 drm_exec_fini(&exec);