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3c37701377
Split VIDMEM support into its own code files organized as such: common/mm/vidmem.c - Base vidmem support common/linux/vidmem.c - Linux specific user-space interaction include/nvgpu/vidmem.h - Vidmem API definitions Also use the config to enable/disable VIDMEM support in the makefile and remove as many CONFIG_GK20A_VIDMEM preprocessor checks as possible from the source code. And lastly update a while-loop that iterated over an SGT to use the new for_each construct for iterating over SGTs. Currently this organization is not perfectly adhered to. More patches will fix that. JIRA NVGPU-30 JIRA NVGPU-138 Change-Id: Ic0f4d2cf38b65849c7dc350a69b175421477069c Signed-off-by: Alex Waterman <alexw@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1540705 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
72 lines
2.2 KiB
C
72 lines
2.2 KiB
C
/*
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* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/kmem.h>
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#include <nvgpu/nvgpu_mem.h>
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#include <nvgpu/dma.h>
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#include <nvgpu/vidmem.h>
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#include "gk20a/gk20a.h"
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void *nvgpu_sgt_get_next(struct nvgpu_sgt *sgt, void *sgl)
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{
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return sgt->ops->sgl_next(sgl);
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}
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u64 nvgpu_sgt_get_phys(struct nvgpu_sgt *sgt, void *sgl)
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{
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return sgt->ops->sgl_phys(sgl);
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}
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u64 nvgpu_sgt_get_dma(struct nvgpu_sgt *sgt, void *sgl)
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{
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return sgt->ops->sgl_dma(sgl);
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}
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u64 nvgpu_sgt_get_length(struct nvgpu_sgt *sgt, void *sgl)
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{
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return sgt->ops->sgl_length(sgl);
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}
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u64 nvgpu_sgt_get_gpu_addr(struct nvgpu_sgt *sgt, struct gk20a *g, void *sgl,
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struct nvgpu_gmmu_attrs *attrs)
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{
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return sgt->ops->sgl_gpu_addr(g, sgl, attrs);
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}
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void nvgpu_sgt_free(struct nvgpu_sgt *sgt, struct gk20a *g)
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{
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if (sgt && sgt->ops->sgt_free)
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sgt->ops->sgt_free(g, sgt);
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}
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u64 nvgpu_mem_iommu_translate(struct gk20a *g, u64 phys)
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{
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/* ensure it is not vidmem allocation */
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WARN_ON(is_vidmem_page_alloc(phys));
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if (nvgpu_iommuable(g) && g->ops.mm.get_iommu_bit)
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return phys | 1ULL << g->ops.mm.get_iommu_bit(g);
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return phys;
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}
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