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75f9486b82
Changes: 1) Added nvgpu_s_param_init_debugfs for creating debugfs interface. 2) Command for S_param value: cat /sys/kernel/debug/gpu_pci/s_param 3) vfe_var_boardobj_grp_get_status is implemented. Jira NVGPU-1736 Change-Id: Icbcf39e47777fe969ae2592b58a3103a21011a87 Signed-off-by: rmylavarapu <rmylavarapu@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1989334 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
67 lines
1.9 KiB
C
67 lines
1.9 KiB
C
/*
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* Copyright (c) 2019, 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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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <linux/debugfs.h>
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#include "os_linux.h"
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#include "include/nvgpu/bios.h"
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#include <common/pmu/perf/vfe_var.h>
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#include <nvgpu/pmu/perf.h>
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static int get_s_param_info(void *data, u64 *val)
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{
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struct gk20a *g = (struct gk20a *)data;
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struct boardobjgrp *pboardobjgrp;
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struct boardobj *pboardobj = NULL;
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struct vfe_var_single_sensed_fuse *single_sensed_fuse = NULL;
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int status;
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u8 index;
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status = nvgpu_vfe_var_boardobj_grp_get_status(g);
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if(status != 0) {
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nvgpu_err(g, "Vfe_var get status failed");
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return status;
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}
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pboardobjgrp = &g->perf_pmu->vfe_varobjs.super.super;
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BOARDOBJGRP_FOR_EACH(pboardobjgrp, struct boardobj*, pboardobj, index) {
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single_sensed_fuse = (struct vfe_var_single_sensed_fuse *)
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(void *)pboardobj;
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if(single_sensed_fuse->vfield_info.v_field_id ==
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VFIELD_ID_S_PARAM) {
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*val = single_sensed_fuse->fuse_value_hw_integer;
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}
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}
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return status;
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}
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DEFINE_SIMPLE_ATTRIBUTE(s_param_fops, get_s_param_info , NULL, "%llu\n");
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int nvgpu_s_param_init_debugfs(struct gk20a *g)
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{
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struct nvgpu_os_linux *l = nvgpu_os_linux_from_gk20a(g);
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struct dentry *dbgentry;
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dbgentry = debugfs_create_file(
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"s_param", S_IRUGO, l->debugfs, g, &s_param_fops);
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if (!dbgentry) {
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pr_err("%s: Failed to make debugfs node\n", __func__);
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return -ENOMEM;
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}
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return 0;
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}
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