Files
linux-nvgpu/drivers/gpu/nvgpu/gk20a/ltc_gk20a.c
Terje Bergstrom b8efd9d045 gpu: nvgpu: Make LTC disabling common code
Refactor the sync_debugfs LTC HAL op so that the logic to enable
or disable LTC goes to common code nvgpu_ltc_sync_enabled() and
the LTC HAL set_enabled only performs the hardware register access.

Create a new common function nvgpu_init_ltc_support() to initialize
the LTC software variable, and move hardware initialization of LTC to
be called from it.

JIRA NVGPU-62

Change-Id: Ib1cf4f5b83ca3dac08407464ed56a732e0a33923
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1528262
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2017-08-04 09:23:56 -07:00

41 lines
1.2 KiB
C

/*
* GK20A L2
*
* Copyright (c) 2011-2017, 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.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <nvgpu/dma.h>
#include "gk20a.h"
#include "gr_gk20a.h"
int gk20a_ltc_alloc_phys_cbc(struct gk20a *g, size_t compbit_backing_size)
{
struct gr_gk20a *gr = &g->gr;
return nvgpu_dma_alloc_flags_sys(g, NVGPU_DMA_FORCE_CONTIGUOUS,
compbit_backing_size,
&gr->compbit_store.mem);
}
int gk20a_ltc_alloc_virt_cbc(struct gk20a *g, size_t compbit_backing_size)
{
struct gr_gk20a *gr = &g->gr;
return nvgpu_dma_alloc_flags_sys(g, NVGPU_DMA_NO_KERNEL_MAPPING,
compbit_backing_size,
&gr->compbit_store.mem);
}