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/*
* GP10B specific sysfs files
*
* Copyright (c) 2016-2017, 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.
*/
#include <linux/platform_device.h>
#include "gk20a/gk20a.h"
#include "gk20a/platform_gk20a.h"
#include "gp10b_sysfs.h"
#include <nvgpu/hw/gp10b/hw_gr_gp10b.h>
#define ROOTRW (S_IRWXU|S_IRGRP|S_IROTH)
static ssize_t ecc_enable_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct gk20a *g = get_gk20a(dev);
u32 ecc_mask;
u32 err = 0;
err = sscanf(buf, "%d", &ecc_mask);
if (err == 1) {
err = g->ops.pmu.send_lrf_tex_ltc_dram_overide_en_dis_cmd
(g, ecc_mask);
if (err)
nvgpu_err(g, "ECC override did not happen");
} else
return -EINVAL;
return count;
}
static ssize_t ecc_enable_read(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct gk20a *g = get_gk20a(dev);
return sprintf(buf, "ecc override =0x%x\n",
g->ops.gr.get_lrf_tex_ltc_dram_override(g));
}
static DEVICE_ATTR(ecc_enable, ROOTRW, ecc_enable_read, ecc_enable_store);
static ssize_t czf_bypass_store(struct device *dev,
struct device_attribute *attr, const char *buf, size_t count)
{
struct gk20a *g = get_gk20a(dev);
unsigned long val;
if (kstrtoul(buf, 10, &val) < 0)
return -EINVAL;
if (val >= 4)
return -EINVAL;
g->gr.czf_bypass = val;
return count;
}
static ssize_t czf_bypass_read(struct device *dev,
struct device_attribute *attr, char *buf)
{
struct gk20a *g = get_gk20a(dev);
return sprintf(buf, "%d\n", g->gr.czf_bypass);
}
static DEVICE_ATTR(czf_bypass, ROOTRW, czf_bypass_read, czf_bypass_store);
void gp10b_create_sysfs(struct device *dev)
{
struct gk20a *g = get_gk20a(dev);
int error = 0;
g->gr.czf_bypass = gr_gpc0_prop_debug1_czf_bypass_init_v();
error |= device_create_file(dev, &dev_attr_ecc_enable);
error |= device_create_file(dev, &dev_attr_czf_bypass);
if (error)
nvgpu_err(g, "Failed to create sysfs attributes!");
}
void gp10b_remove_sysfs(struct device *dev)
{
device_remove_file(dev, &dev_attr_ecc_enable);
device_remove_file(dev, &dev_attr_czf_bypass);
}
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