Loading arch/arm64/configs/vendor/lahaina_GKI.config +1 −0 Original line number Diff line number Diff line Loading @@ -160,3 +160,4 @@ CONFIG_PM_WAKELOCKS=y CONFIG_MMC_SDHCI_MSM=m CONFIG_QCOM_KGSL=m CONFIG_QCOM_QFPROM=m CONFIG_INTERCONNECT_TEST=m drivers/interconnect/Kconfig +10 −0 Original line number Diff line number Diff line Loading @@ -11,6 +11,16 @@ menuconfig INTERCONNECT if INTERCONNECT menuconfig INTERCONNECT_TEST tristate "Debugfs test" depends on DEBUG_FS help Expose the interconnect API to userspace for testing purposes. This will create /sys/kernel/debug/interconnect-test to allow requesting bandwidth between endpoints. If unsure, say no. source "drivers/interconnect/qcom/Kconfig" endif drivers/interconnect/Makefile +2 −0 Original line number Diff line number Diff line # SPDX-License-Identifier: GPL-2.0 icc-core-objs := core.o icc-test-objs := debugfs-test.o obj-$(CONFIG_INTERCONNECT) += icc-core.o obj-$(CONFIG_INTERCONNECT_TEST) += icc-test.o obj-$(CONFIG_INTERCONNECT_QCOM) += qcom/ drivers/interconnect/debugfs-test.c 0 → 100644 +115 −0 Original line number Diff line number Diff line // SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2017, Linaro Ltd. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * This program is distributed in the hope that 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. */ #ifdef CONFIG_DEBUG_FS #include <linux/debugfs.h> #include <linux/interconnect.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/uaccess.h> static struct platform_device *icc_pdev; static struct dentry *debugfs_dir; static struct icc_path *path; static u32 src_port; static u32 dst_port; static u32 avg_bw; static u32 peak_bw; static ssize_t get_write_op(struct file *file, char const __user *buf, size_t count, loff_t *ppos) { unsigned long val; int ret; ret = kstrtoul_from_user(buf, count, 10, &val); if (ret) return ret; path = icc_get(&icc_pdev->dev, src_port, dst_port); if (IS_ERR(path)) return PTR_ERR(path); *ppos += count; return count; } static const struct file_operations get_fops = { .owner = THIS_MODULE, .write = get_write_op }; static ssize_t commit_write_op(struct file *file, char const __user *buf, size_t count, loff_t *ppos) { unsigned long val; int ret; ret = kstrtoul_from_user(buf, count, 10, &val); if (ret) return ret; if (IS_ERR(path)) return PTR_ERR(path); ret = icc_set_bw(path, avg_bw, peak_bw); if (ret) return ret; *ppos += count; return count; } static const struct file_operations commit_fops = { .owner = THIS_MODULE, .write = commit_write_op }; static void __exit icc_test_exit(void) { if (!IS_ERR(path)) icc_put(path); debugfs_remove_recursive(debugfs_dir); platform_device_del(icc_pdev); platform_device_put(icc_pdev); } static int __init icc_test_init(void) { icc_pdev = platform_device_alloc("icc-test", PLATFORM_DEVID_AUTO); platform_device_add(icc_pdev); debugfs_dir = debugfs_create_dir("interconnect-test", NULL); if (!debugfs_dir) pr_err("interconnect: error creating debugfs directory\n"); debugfs_create_u32("src_port", 0600, debugfs_dir, &src_port); debugfs_create_u32("dst_port", 0600, debugfs_dir, &dst_port); debugfs_create_file("get", 0200, debugfs_dir, NULL, &get_fops); debugfs_create_u32("avg_bw", 0600, debugfs_dir, &avg_bw); debugfs_create_u32("peak_bw", 0600, debugfs_dir, &peak_bw); debugfs_create_file("commit", 0200, debugfs_dir, NULL, &commit_fops); return 0; } module_init(icc_test_init); module_exit(icc_test_exit); MODULE_LICENSE("GPL v2"); #endif Loading
arch/arm64/configs/vendor/lahaina_GKI.config +1 −0 Original line number Diff line number Diff line Loading @@ -160,3 +160,4 @@ CONFIG_PM_WAKELOCKS=y CONFIG_MMC_SDHCI_MSM=m CONFIG_QCOM_KGSL=m CONFIG_QCOM_QFPROM=m CONFIG_INTERCONNECT_TEST=m
drivers/interconnect/Kconfig +10 −0 Original line number Diff line number Diff line Loading @@ -11,6 +11,16 @@ menuconfig INTERCONNECT if INTERCONNECT menuconfig INTERCONNECT_TEST tristate "Debugfs test" depends on DEBUG_FS help Expose the interconnect API to userspace for testing purposes. This will create /sys/kernel/debug/interconnect-test to allow requesting bandwidth between endpoints. If unsure, say no. source "drivers/interconnect/qcom/Kconfig" endif
drivers/interconnect/Makefile +2 −0 Original line number Diff line number Diff line # SPDX-License-Identifier: GPL-2.0 icc-core-objs := core.o icc-test-objs := debugfs-test.o obj-$(CONFIG_INTERCONNECT) += icc-core.o obj-$(CONFIG_INTERCONNECT_TEST) += icc-test.o obj-$(CONFIG_INTERCONNECT_QCOM) += qcom/
drivers/interconnect/debugfs-test.c 0 → 100644 +115 −0 Original line number Diff line number Diff line // SPDX-License-Identifier: GPL-2.0 /* * Copyright (c) 2017, Linaro Ltd. * * This software is licensed under the terms of the GNU General Public * License version 2, as published by the Free Software Foundation, and * may be copied, distributed, and modified under those terms. * * This program is distributed in the hope that 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. */ #ifdef CONFIG_DEBUG_FS #include <linux/debugfs.h> #include <linux/interconnect.h> #include <linux/module.h> #include <linux/platform_device.h> #include <linux/uaccess.h> static struct platform_device *icc_pdev; static struct dentry *debugfs_dir; static struct icc_path *path; static u32 src_port; static u32 dst_port; static u32 avg_bw; static u32 peak_bw; static ssize_t get_write_op(struct file *file, char const __user *buf, size_t count, loff_t *ppos) { unsigned long val; int ret; ret = kstrtoul_from_user(buf, count, 10, &val); if (ret) return ret; path = icc_get(&icc_pdev->dev, src_port, dst_port); if (IS_ERR(path)) return PTR_ERR(path); *ppos += count; return count; } static const struct file_operations get_fops = { .owner = THIS_MODULE, .write = get_write_op }; static ssize_t commit_write_op(struct file *file, char const __user *buf, size_t count, loff_t *ppos) { unsigned long val; int ret; ret = kstrtoul_from_user(buf, count, 10, &val); if (ret) return ret; if (IS_ERR(path)) return PTR_ERR(path); ret = icc_set_bw(path, avg_bw, peak_bw); if (ret) return ret; *ppos += count; return count; } static const struct file_operations commit_fops = { .owner = THIS_MODULE, .write = commit_write_op }; static void __exit icc_test_exit(void) { if (!IS_ERR(path)) icc_put(path); debugfs_remove_recursive(debugfs_dir); platform_device_del(icc_pdev); platform_device_put(icc_pdev); } static int __init icc_test_init(void) { icc_pdev = platform_device_alloc("icc-test", PLATFORM_DEVID_AUTO); platform_device_add(icc_pdev); debugfs_dir = debugfs_create_dir("interconnect-test", NULL); if (!debugfs_dir) pr_err("interconnect: error creating debugfs directory\n"); debugfs_create_u32("src_port", 0600, debugfs_dir, &src_port); debugfs_create_u32("dst_port", 0600, debugfs_dir, &dst_port); debugfs_create_file("get", 0200, debugfs_dir, NULL, &get_fops); debugfs_create_u32("avg_bw", 0600, debugfs_dir, &avg_bw); debugfs_create_u32("peak_bw", 0600, debugfs_dir, &peak_bw); debugfs_create_file("commit", 0200, debugfs_dir, NULL, &commit_fops); return 0; } module_init(icc_test_init); module_exit(icc_test_exit); MODULE_LICENSE("GPL v2"); #endif
