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640d0e2c3b
-sysfs functions to call into LS PMU and modify ECC overide register Bug 1699676 Change-Id: Iaf6cc3a86160b806e52ab168577caad42b2c5d22 Signed-off-by: Supriya <ssharatkumar@nvidia.com> Reviewed-on: http://git-master/r/921252 Reviewed-by: Automatic_Commit_Validation_User Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com> Tested-by: Terje Bergstrom <tbergstrom@nvidia.com>
67 lines
1.8 KiB
C
67 lines
1.8 KiB
C
/*
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* GP10B specific sysfs files
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*
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* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#include <linux/platform_device.h>
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#include "gk20a/gk20a.h"
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#include "gp10b_sysfs.h"
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#define ROOTRW (S_IRWXU|S_IRGRP|S_IROTH)
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static ssize_t ecc_enable_store(struct device *device,
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struct device_attribute *attr, const char *buf, size_t count)
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{
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struct platform_device *ndev = to_platform_device(device);
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struct gk20a *g = get_gk20a(ndev);
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u32 ecc_mask;
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u32 err = 0;
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err = sscanf(buf, "%d", &ecc_mask);
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if (err == 1) {
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err = g->ops.pmu.send_lrf_tex_ltc_dram_overide_en_dis_cmd
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(g, ecc_mask);
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if (err)
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dev_err(device, "ECC override did not happen\n");
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} else
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return -EINVAL;
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return count;
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}
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static ssize_t ecc_enable_read(struct device *device,
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struct device_attribute *attr, char *buf)
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{
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struct platform_device *ndev = to_platform_device(device);
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struct gk20a *g = get_gk20a(ndev);
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return sprintf(buf, "ecc override =0x%x\n",
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g->ops.gr.get_lrf_tex_ltc_dram_override(g));
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}
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static DEVICE_ATTR(ecc_enable, ROOTRW, ecc_enable_read, ecc_enable_store);
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void gp10b_create_sysfs(struct platform_device *dev)
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{
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int error = 0;
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error |= device_create_file(&dev->dev, &dev_attr_ecc_enable);
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if (error)
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dev_err(&dev->dev, "Failed to create sysfs attributes!\n");
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}
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void gp10b_remove_sysfs(struct device *dev)
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{
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device_remove_file(dev, &dev_attr_ecc_enable);
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}
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