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author | Lucas Stach <l.stach@pengutronix.de> | 2017-01-16 16:09:51 +0100 |
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committer | Lucas Stach <l.stach@pengutronix.de> | 2017-02-02 10:30:15 +0100 |
commit | ea1f5729aa1bbe68f9a394e259288d6ff894b0aa (patch) | |
tree | b0f0d773e44d3eec4bfe48756df6420ec6393d88 /drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c | |
parent | d46450737c007b16bb81f9d5dea56d1f4b9a2c21 (diff) | |
download | op-kernel-dev-ea1f5729aa1bbe68f9a394e259288d6ff894b0aa.zip op-kernel-dev-ea1f5729aa1bbe68f9a394e259288d6ff894b0aa.tar.gz |
drm/etnaviv: move cmdbuf de-/allocation into own file
This will get more complex with the following changes, so move it
into its own place.
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Diffstat (limited to 'drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c')
-rw-r--r-- | drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c new file mode 100644 index 0000000..08f01ce --- /dev/null +++ b/drivers/gpu/drm/etnaviv/etnaviv_cmdbuf.c @@ -0,0 +1,54 @@ +/* + * 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); +} |