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git://nv-tegra.nvidia.com/linux-hwpm.git
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70941decf9
Add a driver for programming the Tegra SOC HWPM path. SOC HWPM allows performance monitoring of various Tegra IPs. The profiling tests cases are configured through IOCTLs sent by a userspace profiling app. The IOCTLs provide the following features: - IP discovery and reservation - Buffer management - Whitelist query - Register read/write ops Bug 200702306 Bug 3305495 Change-Id: I65003b126e01bd03d856767c55aa2424bcfd11fb Signed-off-by: Adeel Raza <araza@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-t23x/+/2515148 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
/*
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* tegra-soc-hwpm-debugfs.c:
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* This file adds debugfs nodes for the Tegra SOC HWPM driver.
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*
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* Copyright (c) 2021, 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 "tegra-soc-hwpm.h"
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/* FIXME: This is a placeholder for now. We can add debugfs nodes as needed. */
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void tegra_soc_hwpm_debugfs_init(struct tegra_soc_hwpm *hwpm)
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{
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if (!hwpm) {
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tegra_soc_hwpm_err("Invalid hwpm struct");
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return;
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}
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hwpm->debugfs_root = debugfs_create_dir(TEGRA_SOC_HWPM_MODULE_NAME, NULL);
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if (!hwpm->debugfs_root) {
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tegra_soc_hwpm_err("Failed to create debugfs root directory");
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goto fail;
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}
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return;
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fail:
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debugfs_remove_recursive(hwpm->debugfs_root);
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hwpm->debugfs_root = NULL;
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}
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void tegra_soc_hwpm_debugfs_deinit(struct tegra_soc_hwpm *hwpm)
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{
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if (!hwpm) {
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tegra_soc_hwpm_err("Invalid hwpm struct");
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return;
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}
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debugfs_remove_recursive(hwpm->debugfs_root);
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hwpm->debugfs_root = NULL;
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}
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