Files
linux-nvgpu/drivers/gpu/nvgpu/vgpu/ltc_vgpu.c
Bharat Nihalani b8aa486109 Revert "Revert "Revert "Revert "gpu: nvgpu: New allocator for VA space""""
This reverts commit 2e5803d0f2b7d7a1577a40f45ab9f3b22ef2df80 since
the issue seen with bug 200106514 is fixed with change
http://git-master/r/#/c/752080/.

Bug 200112195

Change-Id: I588151c2a7ea74bd89dc3fd48bb81ff2c49f5a0a
Signed-off-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-on: http://git-master/r/752503
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
2015-06-04 10:41:00 -07:00

54 lines
1.5 KiB
C

/*
* 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, NULL, "comptag",
1, max_comptag_lines - 1, 1, 10, 0); /* length*/
return 0;
}
void vgpu_init_ltc_ops(struct gpu_ops *gops)
{
gops->ltc.determine_L2_size_bytes = vgpu_determine_L2_size_bytes;
gops->ltc.init_comptags = vgpu_ltc_init_comptags;
}