/* * Copyright 2011 Red Hat Inc. * All Rights Reserved. * * 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, sub license, 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 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 NON-INFRINGEMENT. IN NO EVENT SHALL * THE COPYRIGHT HOLDERS, AUTHORS AND/OR ITS SUPPLIERS 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. * * The above copyright notice and this permission notice (including the * next paragraph) shall be included in all copies or substantial portions * of the Software. *
*/ /* * Authors: * Jerome Glisse <glisse@freedesktop.org>
*/ /* Algorithm: * * We store the last allocated bo in "hole", we always try to allocate * after the last allocated bo. Principle is that in a linear GPU ring * progression was is after last is the oldest bo we allocated and thus * the first one that should no longer be in use by the GPU. * * If it's not the case we skip over the bo after last to the closest * done bo if such one exist. If none exist and we are not asked to * block we report failure to allocate. * * If we are asked to block we wait on all the oldest fence of all * rings. We just wait for any of those fence to complete.
*/
#include"amdgpu.h"
int amdgpu_sa_bo_manager_init(struct amdgpu_device *adev, struct amdgpu_sa_manager *sa_manager, unsignedint size, u32 suballoc_align, u32 domain)
{ int r;
r = amdgpu_bo_create_kernel(adev, size, AMDGPU_GPU_PAGE_SIZE, domain,
&sa_manager->bo, &sa_manager->gpu_addr,
&sa_manager->cpu_ptr); if (r) {
dev_err(adev->dev, "(%d) failed to allocate bo for manager\n", r); return r;
}
void amdgpu_sa_bo_manager_fini(struct amdgpu_device *adev, struct amdgpu_sa_manager *sa_manager)
{ if (sa_manager->bo == NULL) {
dev_err(adev->dev, "no bo for sa manager\n"); return;
}
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