1ea1f5729SLucas Stach /* 2ea1f5729SLucas Stach * Copyright (C) 2017 Etnaviv Project 3ea1f5729SLucas Stach * 4ea1f5729SLucas Stach * This program is free software; you can redistribute it and/or modify it 5ea1f5729SLucas Stach * under the terms of the GNU General Public License version 2 as published by 6ea1f5729SLucas Stach * the Free Software Foundation. 7ea1f5729SLucas Stach * 8ea1f5729SLucas Stach * This program is distributed in the hope that it will be useful, but WITHOUT 9ea1f5729SLucas Stach * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 10ea1f5729SLucas Stach * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for 11ea1f5729SLucas Stach * more details. 12ea1f5729SLucas Stach * 13ea1f5729SLucas Stach * You should have received a copy of the GNU General Public License along with 14ea1f5729SLucas Stach * this program. If not, see <http://www.gnu.org/licenses/>. 15ea1f5729SLucas Stach */ 16ea1f5729SLucas Stach 17ea1f5729SLucas Stach #include "etnaviv_cmdbuf.h" 18ea1f5729SLucas Stach #include "etnaviv_gpu.h" 19ea1f5729SLucas Stach #include "etnaviv_mmu.h" 20ea1f5729SLucas Stach 21ea1f5729SLucas Stach struct etnaviv_cmdbuf *etnaviv_cmdbuf_new(struct etnaviv_gpu *gpu, u32 size, 22ea1f5729SLucas Stach size_t nr_bos) 23ea1f5729SLucas Stach { 24ea1f5729SLucas Stach struct etnaviv_cmdbuf *cmdbuf; 25ea1f5729SLucas Stach size_t sz = size_vstruct(nr_bos, sizeof(cmdbuf->bo_map[0]), 26ea1f5729SLucas Stach sizeof(*cmdbuf)); 27ea1f5729SLucas Stach 28ea1f5729SLucas Stach cmdbuf = kzalloc(sz, GFP_KERNEL); 29ea1f5729SLucas Stach if (!cmdbuf) 30ea1f5729SLucas Stach return NULL; 31ea1f5729SLucas Stach 32ea1f5729SLucas Stach if (gpu->mmu->version == ETNAVIV_IOMMU_V2) 33ea1f5729SLucas Stach size = ALIGN(size, SZ_4K); 34ea1f5729SLucas Stach 35ea1f5729SLucas Stach cmdbuf->vaddr = dma_alloc_wc(gpu->dev, size, &cmdbuf->paddr, 36ea1f5729SLucas Stach GFP_KERNEL); 37ea1f5729SLucas Stach if (!cmdbuf->vaddr) { 38ea1f5729SLucas Stach kfree(cmdbuf); 39ea1f5729SLucas Stach return NULL; 40ea1f5729SLucas Stach } 41ea1f5729SLucas Stach 42ea1f5729SLucas Stach cmdbuf->gpu = gpu; 43ea1f5729SLucas Stach cmdbuf->size = size; 44ea1f5729SLucas Stach 45ea1f5729SLucas Stach return cmdbuf; 46ea1f5729SLucas Stach } 47ea1f5729SLucas Stach 48ea1f5729SLucas Stach void etnaviv_cmdbuf_free(struct etnaviv_cmdbuf *cmdbuf) 49ea1f5729SLucas Stach { 50ea1f5729SLucas Stach etnaviv_iommu_put_cmdbuf_va(cmdbuf->gpu, cmdbuf); 51ea1f5729SLucas Stach dma_free_wc(cmdbuf->gpu->dev, cmdbuf->size, cmdbuf->vaddr, 52ea1f5729SLucas Stach cmdbuf->paddr); 53ea1f5729SLucas Stach kfree(cmdbuf); 54ea1f5729SLucas Stach } 55c3ef4b8cSLucas Stach 56c3ef4b8cSLucas Stach u32 etnaviv_cmdbuf_get_va(struct etnaviv_cmdbuf *buf) 57c3ef4b8cSLucas Stach { 58c3ef4b8cSLucas Stach return etnaviv_iommu_get_cmdbuf_va(buf->gpu, buf); 59c3ef4b8cSLucas Stach } 60*9912b4dbSLucas Stach 61*9912b4dbSLucas Stach dma_addr_t etnaviv_cmdbuf_get_pa(struct etnaviv_cmdbuf *buf) 62*9912b4dbSLucas Stach { 63*9912b4dbSLucas Stach return buf->paddr; 64*9912b4dbSLucas Stach } 65