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1fd722f592
The nvgpu driver now supports using the Tegra graphics virtualization interfaces to support gk20a in a virtualized environment. Bug 1509608 Change-Id: I6ede15ee7bf0b0ad8a13e8eb5f557c3516ead676 Signed-off-by: Aingara Paramakuru <aparamakuru@nvidia.com> Reviewed-on: http://git-master/r/440122 Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
56 lines
1.5 KiB
C
56 lines
1.5 KiB
C
/*
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* Virtualized GPU L2
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*
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* Copyright (c) 2014 NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include "vgpu/vgpu.h"
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static int vgpu_determine_L2_size_bytes(struct gk20a *g)
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{
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struct gk20a_platform *platform = gk20a_get_platform(g->dev);
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u32 cache_size = 0;
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gk20a_dbg_fn("");
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if (vgpu_get_attribute(platform->virt_handle,
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TEGRA_VGPU_ATTRIB_L2_SIZE, &cache_size))
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dev_err(dev_from_gk20a(g), "unable to get L2 size");
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return cache_size;
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}
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static int vgpu_ltc_init_comptags(struct gk20a *g, struct gr_gk20a *gr)
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{
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struct gk20a_platform *platform = gk20a_get_platform(g->dev);
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u32 max_comptag_lines = 0;
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gk20a_dbg_fn("");
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vgpu_get_attribute(platform->virt_handle,
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TEGRA_VGPU_ATTRIB_COMPTAG_LINES, &max_comptag_lines);
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if (max_comptag_lines < 2)
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return -ENXIO;
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gk20a_allocator_init(&gr->comp_tags, "comptag",
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1, /* start */
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max_comptag_lines - 1, /* length*/
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1); /* align */
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return 0;
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}
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void vgpu_init_ltc_ops(struct gpu_ops *gops)
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{
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gops->ltc.determine_L2_size_bytes = vgpu_determine_L2_size_bytes;
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gops->ltc.init_comptags = vgpu_ltc_init_comptags;
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}
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