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/*
* Copyright (C) 2017 Etnaviv Project
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of the GNU General Public License version 2 as published by
* the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "etnaviv_cmdbuf.h"
#include "etnaviv_gpu.h"
#include "etnaviv_mmu.h"
struct etnaviv_cmdbuf *etnaviv_cmdbuf_new(struct etnaviv_gpu *gpu, u32 size,
size_t nr_bos)
{
struct etnaviv_cmdbuf *cmdbuf;
size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo_map[0]),
sizeof(*cmdbuf));
cmdbuf = kzalloc(sz, GFP_KERNEL);
if (!cmdbuf)
return NULL;
if (gpu->mmu->version == ETNAVIV_IOMMU_V2)
size = ALIGN(size, SZ_4K);
cmdbuf->vaddr = dma_alloc_wc(gpu->dev, size, &cmdbuf->paddr,
GFP_KERNEL);
if (!cmdbuf->vaddr) {
kfree(cmdbuf);
return NULL;
}
cmdbuf->gpu = gpu;
cmdbuf->size = size;
return cmdbuf;
}
void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf)
{
etnaviv_iommu_put_cmdbuf_va(cmdbuf->gpu, cmdbuf);
dma_free_wc(cmdbuf->gpu->dev, cmdbuf->size, cmdbuf->vaddr,
cmdbuf->paddr);
kfree(cmdbuf);
}
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