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/*
* Virtualized GPU L2
*
* Copyright (c) 2014 NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope 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.
*/
#include "vgpu/vgpu.h"
static int vgpu_determine_L2_size_bytes(struct gk20a *g)
{
struct gk20a_platform *platform = gk20a_get_platform(g->dev);
u32 cache_size = 0;
gk20a_dbg_fn("");
if (vgpu_get_attribute(platform->virt_handle,
TEGRA_VGPU_ATTRIB_L2_SIZE, &cache_size))
dev_err(dev_from_gk20a(g), "unable to get L2 size");
return cache_size;
}
static int vgpu_ltc_init_comptags(struct gk20a *g, struct gr_gk20a *gr)
{
struct gk20a_platform *platform = gk20a_get_platform(g->dev);
u32 max_comptag_lines = 0;
gk20a_dbg_fn("");
vgpu_get_attribute(platform->virt_handle,
TEGRA_VGPU_ATTRIB_COMPTAG_LINES, &max_comptag_lines);
if (max_comptag_lines < 2)
return -ENXIO;
gk20a_allocator_init(&gr->comp_tags, "comptag",
1, /* start */
max_comptag_lines - 1, /* length*/
1); /* align */
return 0;
}
static const struct gpu_ltc_ops vgpu_ltc_ops = {
.determine_L2_size_bytes = vgpu_determine_L2_size_bytes,
.init_comptags = vgpu_ltc_init_comptags,
};
void vgpu_init_ltc_ops(struct gpu_ops *gops)
{
gops->ltc = &vgpu_ltc_ops;
}
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