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bad0572cb1
Add support to send command to RM server to retrieve GPU load. Bug 200261903 Change-Id: Ie3d0ba7ec91317e9a2911f71613ad78d20f9c1fb Signed-off-by: Aparna Das <aparnad@nvidia.com> Reviewed-on: http://git-master/r/1275045 (cherry picked from commit 5a6c1de1e6997bfd803b4b95b3e44e282ba32f67) Reviewed-on: http://git-master/r/1283279 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/*
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* Copyright (c) 2017, 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/device.h>
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#include <linux/kernel.h>
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#include <linux/gk20a.h>
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#include "vgpu/vgpu.h"
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static ssize_t vgpu_load_show(struct device *dev,
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struct device_attribute *attr,
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char *buf)
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{
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struct gk20a *g = get_gk20a(dev);
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struct tegra_vgpu_cmd_msg msg = {0};
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struct tegra_vgpu_gpu_load_params *p = &msg.params.gpu_load;
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int err;
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msg.cmd = TEGRA_VGPU_CMD_GET_GPU_LOAD;
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msg.handle = vgpu_get_handle(g);
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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if (err)
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return err;
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return snprintf(buf, PAGE_SIZE, "%u\n", p->load);
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}
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static DEVICE_ATTR(load, S_IRUGO, vgpu_load_show, NULL);
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void vgpu_create_sysfs(struct device *dev)
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{
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if (device_create_file(dev, &dev_attr_load))
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dev_err(dev, "Failed to create vgpu sysfs attributes!\n");
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}
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void vgpu_remove_sysfs(struct device *dev)
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{
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device_remove_file(dev, &dev_attr_load);
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}
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