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/*
* Copyright (c) 2018, 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 <linux/debugfs.h>
#include "os_linux.h"
#include "pmgr/pmgr.h"
static int pmgr_pwr_devices_get_power_u64(void *data, u64 *p)
{
struct gk20a *g = (struct gk20a *)data;
int err;
u32 val;
err = pmgr_pwr_devices_get_power(g, &val);
*p = val;
return err;
}
static int pmgr_pwr_devices_get_current_u64(void *data, u64 *p)
{
struct gk20a *g = (struct gk20a *)data;
int err;
u32 val;
err = pmgr_pwr_devices_get_current(g, &val);
*p = val;
return err;
}
static int pmgr_pwr_devices_get_voltage_u64(void *data, u64 *p)
{
struct gk20a *g = (struct gk20a *)data;
int err;
u32 val;
err = pmgr_pwr_devices_get_voltage(g, &val);
*p = val;
return err;
}
DEFINE_SIMPLE_ATTRIBUTE(
pmgr_power_ctrl_fops, pmgr_pwr_devices_get_power_u64, NULL, "%llu\n");
DEFINE_SIMPLE_ATTRIBUTE(
pmgr_current_ctrl_fops, pmgr_pwr_devices_get_current_u64, NULL, "%llu\n");
DEFINE_SIMPLE_ATTRIBUTE(
pmgr_voltage_ctrl_fops, pmgr_pwr_devices_get_voltage_u64, NULL, "%llu\n");
static void pmgr_debugfs_init(struct gk20a *g)
{
struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
struct dentry *dbgentry;
dbgentry = debugfs_create_file(
"power", S_IRUGO, l->debugfs, g, &pmgr_power_ctrl_fops);
if (!dbgentry)
nvgpu_err(g, "debugfs entry create failed for power");
dbgentry = debugfs_create_file(
"current", S_IRUGO, l->debugfs, g, &pmgr_current_ctrl_fops);
if (!dbgentry)
nvgpu_err(g, "debugfs entry create failed for current");
dbgentry = debugfs_create_file(
"voltage", S_IRUGO, l->debugfs, g, &pmgr_voltage_ctrl_fops);
if (!dbgentry)
nvgpu_err(g, "debugfs entry create failed for voltage");
}
int nvgpu_pmgr_init_debugfs_linux(struct nvgpu_os_linux *l)
{
struct gk20a *g = &l->g;
int ret = 0;
if (!nvgpu_is_enabled(g, NVGPU_PMU_PSTATE))
return ret;
if (!g->ops.clk.support_pmgr_domain)
return ret;
pmgr_debugfs_init(g);
return ret;
}
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