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68bbe11c45
Create a new directory mm under common vgpu path moving all vgp common mm files under that directory. This follows native directory structure. Move vgpu vm functions from mm_vgpu.c to a new file vm_vgpu.c. Rename corresponding header file from vm.h to vm_gpu.h Jira GVSCI-334 Change-Id: Ib77efca0b919478284101894ab16919ba03f71d2 Signed-off-by: Aparna Das <aparnad@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2013352 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
81 lines
2.5 KiB
C
81 lines
2.5 KiB
C
/*
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* Virtualized GPU VM
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*
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* Copyright (c) 2019, 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/dma.h>
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#include <nvgpu/bug.h>
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#include <nvgpu/gk20a.h>
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#include <nvgpu/channel.h>
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#include <nvgpu/vgpu/vgpu.h>
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#include <nvgpu/vm.h>
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#include <nvgpu/vm_area.h>
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#include <nvgpu/vgpu/vm_vgpu.h>
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/*
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* This is called by the common VM init routine to handle vGPU specifics of
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* intializing a VM on a vGPU. This alone is not enough to init a VM. See
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* nvgpu_vm_init().
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*/
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int vgpu_vm_init(struct gk20a *g, struct vm_gk20a *vm)
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{
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struct tegra_vgpu_cmd_msg msg;
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struct tegra_vgpu_as_share_params *p = &msg.params.as_share;
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int err;
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msg.cmd = TEGRA_VGPU_CMD_AS_ALLOC_SHARE;
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msg.handle = vgpu_get_handle(g);
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p->size = vm->va_limit;
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p->big_page_size = vm->big_page_size;
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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if (err || msg.ret) {
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return -ENOMEM;
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}
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vm->handle = p->handle;
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return 0;
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}
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/*
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* Similar to vgpu_vm_init() this is called as part of the cleanup path for
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* VMs. This alone is not enough to remove a VM - see nvgpu_vm_remove().
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*/
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void vgpu_vm_remove(struct vm_gk20a *vm)
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{
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struct gk20a *g = gk20a_from_vm(vm);
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struct tegra_vgpu_cmd_msg msg;
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struct tegra_vgpu_as_share_params *p = &msg.params.as_share;
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int err;
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msg.cmd = TEGRA_VGPU_CMD_AS_FREE_SHARE;
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msg.handle = vgpu_get_handle(g);
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p->handle = vm->handle;
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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WARN_ON(err || msg.ret);
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}
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