Files
linux-nvgpu/drivers/gpu/nvgpu/common/power_features/power_features.c
Seema Khowala a72bfa63b2 gpu: nvgpu: Add NVGPU_FEATURE_POWER_PG compiler flag
This flag is added to compile out below features from
safety build
-elpg

JIRA NVGPU-3425

Change-Id: I439edb444a4ebe1732a379aecbb0ffc8b48eb97c
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2127449
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-06-04 12:05:49 -07:00

75 lines
2.0 KiB
C

/*
* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <nvgpu/gk20a.h>
#include <nvgpu/power_features/cg.h>
#include <nvgpu/power_features/pg.h>
#include <nvgpu/power_features/power_features.h>
int nvgpu_cg_pg_disable(struct gk20a *g)
{
int err = 0;
nvgpu_log_fn(g, " ");
g->ops.gr.init.wait_initialized(g);
#ifdef NVGPU_FEATURE_POWER_PG
/* disable elpg before clock gating */
err = nvgpu_pg_elpg_disable(g);
if (err != 0) {
nvgpu_err(g, "failed to set disable elpg");
}
#endif
nvgpu_cg_slcg_gr_perf_ltc_load_disable(g);
nvgpu_cg_blcg_mode_disable(g);
nvgpu_cg_elcg_disable(g);
return err;
}
int nvgpu_cg_pg_enable(struct gk20a *g)
{
int err = 0;
nvgpu_log_fn(g, " ");
g->ops.gr.init.wait_initialized(g);
nvgpu_cg_elcg_enable(g);
nvgpu_cg_blcg_mode_enable(g);
nvgpu_cg_slcg_gr_perf_ltc_load_enable(g);
#ifdef NVGPU_FEATURE_POWER_PG
err = nvgpu_pg_elpg_enable(g);
if (err != 0) {
nvgpu_err(g, "failed to set enable elpg");
}
#endif
return err;
}