109 lines
3.2 KiB
C
109 lines
3.2 KiB
C
|
/*
|
||
|
|
* Copyright 2016 Advanced Micro Devices, Inc.
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
* copy of this software and associated documentation files (the "Software"),
|
||
|
|
* to deal in the Software without restriction, including without limitation
|
||
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||
|
|
* Software is furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
||
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
||
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
|
||
|
|
* * Author: Monk.liu@amd.com
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include "amdgpu.h"
|
||
|
|
|
||
|
|
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;
|
||
|
|
addr = amdgpu_gmc_sign_extend(addr);
|
||
|
|
|
||
|
|
return addr;
|
||
|
|
}
|
||
|
|
|
||
|
|
int amdgpu_allocate_static_csa(struct amdgpu_device *adev, struct amdgpu_bo **bo,
|
||
|
|
u32 domain, uint32_t size)
|
||
|
|
{
|
||
|
|
void *ptr;
|
||
|
|
|
||
|
|
amdgpu_bo_create_kernel(adev, size, PAGE_SIZE,
|
||
|
|
domain, bo,
|
||
|
|
NULL, &ptr);
|
||
|
|
if (!*bo)
|
||
|
|
return -ENOMEM;
|
||
|
|
|
||
|
|
memset(ptr, 0, size);
|
||
|
|
adev->virt.csa_cpu_addr = ptr;
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
void amdgpu_free_static_csa(struct amdgpu_bo **bo)
|
||
|
|
{
|
||
|
|
amdgpu_bo_free_kernel(bo, NULL, NULL);
|
||
|
|
}
|
||
|
|
|
||
|
|
/*
|
||
|
|
* amdgpu_map_static_csa should be called during amdgpu_vm_init
|
||
|
|
* 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 *bo, struct amdgpu_bo_va **bo_va,
|
||
|
|
uint64_t csa_addr, uint32_t size)
|
||
|
|
{
|
||
|
|
struct ww_acquire_ctx ticket;
|
||
|
|
struct list_head list;
|
||
|
|
struct amdgpu_bo_list_entry pd;
|
||
|
|
struct ttm_validate_buffer csa_tv;
|
||
|
|
int r;
|
||
|
|
|
||
|
|
INIT_LIST_HEAD(&list);
|
||
|
|
INIT_LIST_HEAD(&csa_tv.head);
|
||
|
|
csa_tv.bo = &bo->tbo;
|
||
|
|
csa_tv.num_shared = 1;
|
||
|
|
|
||
|
|
list_add(&csa_tv.head, &list);
|
||
|
|
amdgpu_vm_get_pd_bo(vm, &list, &pd);
|
||
|
|
|
||
|
|
r = ttm_eu_reserve_buffers(&ticket, &list, true, NULL);
|
||
|
|
if (r) {
|
||
|
|
DRM_ERROR("failed to reserve CSA,PD BOs: err=%d\n", r);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
*bo_va = amdgpu_vm_bo_add(adev, vm, bo);
|
||
|
|
if (!*bo_va) {
|
||
|
|
ttm_eu_backoff_reservation(&ticket, &list);
|
||
|
|
DRM_ERROR("failed to create bo_va for static CSA\n");
|
||
|
|
return -ENOMEM;
|
||
|
|
}
|
||
|
|
|
||
|
|
r = amdgpu_vm_bo_map(adev, *bo_va, csa_addr, 0, size,
|
||
|
|
AMDGPU_PTE_READABLE | AMDGPU_PTE_WRITEABLE |
|
||
|
|
AMDGPU_PTE_EXECUTABLE);
|
||
|
|
|
||
|
|
if (r) {
|
||
|
|
DRM_ERROR("failed to do bo_map on static CSA, err=%d\n", r);
|
||
|
|
amdgpu_vm_bo_del(adev, *bo_va);
|
||
|
|
ttm_eu_backoff_reservation(&ticket, &list);
|
||
|
|
return r;
|
||
|
|
}
|
||
|
|
|
||
|
|
ttm_eu_backoff_reservation(&ticket, &list);
|
||
|
|
return 0;
|
||
|
|
}
|