Initial commit: Linux kernel 4.19 for Unplugged OS

drivers/misc/mediatek/performance/boost_ctrl/topo_ctrl/Makefile

@@ -0,0 +1,17 @@
+#
+# Copyright (C) 2018 MediaTek Inc.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# 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.
+#
+
+ccflags-y += \
+	-I$(srctree)/kernel/
+
+obj-y += topo_ctrl.o

drivers/misc/mediatek/performance/boost_ctrl/topo_ctrl/mt6739/cpu_topo_platform.h

@@ -0,0 +1,53 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+*/
+
+
+#ifndef __MT_CPU_TOPO_PLATFORM_H__
+#define __MT_CPU_TOPO_PLATFORM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*==============================================================*/
+/* Macros							*/
+/*==============================================================*/
+/* TODO: remove these workaround for k49 migration */
+#define NO_SCHEDULE_API		(1)
+
+#define TOTAL_CORE_NUM	(CORE_NUM_L)
+#define CORE_NUM_L	(4)
+
+#define get_cluster_cpu_core(id)	\
+		(id ? 0 : CORE_NUM_L)
+
+/*==============================================================*/
+/* Enum								*/
+/*==============================================================*/
+enum ppm_cluster {
+	PPM_CLUSTER_L = 0,
+
+	NR_PPM_CLUSTERS,
+};
+
+/*==============================================================*/
+/* Data Structures						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* Global Variables						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* APIs								*/
+/*==============================================================*/
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

drivers/misc/mediatek/performance/boost_ctrl/topo_ctrl/mt6768/cpu_topo_platform.h

@@ -0,0 +1,55 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+*/
+
+
+#ifndef __MT_CPU_TOPO_PLATFORM_H__
+#define __MT_CPU_TOPO_PLATFORM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*==============================================================*/
+/* Macros							*/
+/*==============================================================*/
+/* TODO: remove these workaround for k49 migration */
+#define NO_SCHEDULE_API		(1)
+
+#define TOTAL_CORE_NUM	(CORE_NUM_L+CORE_NUM_B)
+#define CORE_NUM_L	(6)
+#define CORE_NUM_B	(2)
+
+#define get_cluster_cpu_core(id)	\
+		(id ? CORE_NUM_B : CORE_NUM_L)
+
+/*==============================================================*/
+/* Enum								*/
+/*==============================================================*/
+enum ppm_cluster {
+	PPM_CLUSTER_L = 0,
+	PPM_CLUSTER_B,
+
+	NR_PPM_CLUSTERS,
+};
+
+/*==============================================================*/
+/* Data Structures						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* Global Variables						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* APIs								*/
+/*==============================================================*/
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

drivers/misc/mediatek/performance/boost_ctrl/topo_ctrl/mt6785/cpu_topo_platform.h

@@ -0,0 +1,54 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ */
+
+#ifndef __MT_CPU_TOPO_PLATFORM_H__
+#define __MT_CPU_TOPO_PLATFORM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*==============================================================*/
+/* Macros							*/
+/*==============================================================*/
+/* TODO: remove these workaround for k49 migration */
+#define NO_SCHEDULE_API		(1)
+
+#define TOTAL_CORE_NUM	(CORE_NUM_L+CORE_NUM_B)
+#define CORE_NUM_L	(6)
+#define CORE_NUM_B	(2)
+
+#define get_cluster_cpu_core(id)	\
+		(id ? CORE_NUM_B : CORE_NUM_L)
+
+/*==============================================================*/
+/* Enum								*/
+/*==============================================================*/
+enum ppm_cluster {
+	PPM_CLUSTER_L = 0,
+	PPM_CLUSTER_B,
+
+	NR_PPM_CLUSTERS,
+};
+
+/*==============================================================*/
+/* Data Structures						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* Global Variables						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* APIs								*/
+/*==============================================================*/
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

drivers/misc/mediatek/performance/boost_ctrl/topo_ctrl/mt6853/cpu_topo_platform.h

@@ -0,0 +1,56 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ */
+
+
+
+#ifndef __MT_CPU_TOPO_PLATFORM_H__
+#define __MT_CPU_TOPO_PLATFORM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*==============================================================*/
+/* Macros							*/
+/*==============================================================*/
+/* TODO: remove these workaround for k49 migration */
+#define NO_SCHEDULE_API		(1)
+
+#define TOTAL_CORE_NUM	(CORE_NUM_L+CORE_NUM_B)
+#define CORE_NUM_L	(6)
+#define CORE_NUM_B	(2)
+
+#define get_cluster_cpu_core(id)	\
+		(id ? CORE_NUM_B : CORE_NUM_L)
+
+/*==============================================================*/
+/* Enum								*/
+/*==============================================================*/
+enum ppm_cluster {
+	PPM_CLUSTER_L = 0,
+	PPM_CLUSTER_B,
+
+	NR_PPM_CLUSTERS,
+};
+
+/*==============================================================*/
+/* Data Structures						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* Global Variables						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* APIs								*/
+/*==============================================================*/
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

drivers/misc/mediatek/performance/boost_ctrl/topo_ctrl/mt6873/cpu_topo_platform.h

@@ -0,0 +1,55 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ */
+
+
+#ifndef __MT_CPU_TOPO_PLATFORM_H__
+#define __MT_CPU_TOPO_PLATFORM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*==============================================================*/
+/* Macros							*/
+/*==============================================================*/
+/* TODO: remove these workaround for k49 migration */
+#define NO_SCHEDULE_API		(1)
+
+#define TOTAL_CORE_NUM	(CORE_NUM_L+CORE_NUM_B)
+#define CORE_NUM_L	(4)
+#define CORE_NUM_B	(4)
+
+#define get_cluster_cpu_core(id)	\
+		(id ? CORE_NUM_B : CORE_NUM_L)
+
+/*==============================================================*/
+/* Enum								*/
+/*==============================================================*/
+enum ppm_cluster {
+	PPM_CLUSTER_L = 0,
+	PPM_CLUSTER_B,
+
+	NR_PPM_CLUSTERS,
+};
+
+/*==============================================================*/
+/* Data Structures						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* Global Variables						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* APIs								*/
+/*==============================================================*/
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

drivers/misc/mediatek/performance/boost_ctrl/topo_ctrl/mt6885/cpu_topo_platform.h

@@ -0,0 +1,88 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+*/
+
+
+#ifndef __MT_CPU_TOPO_PLATFORM_H__
+#define __MT_CPU_TOPO_PLATFORM_H__
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+
+/*==============================================================*/
+/* Macros							*/
+/*==============================================================*/
+/* TODO: remove these workaround for k49 migration */
+#define NO_SCHEDULE_API		(1)
+
+#if defined(CONFIG_MTK_SCHED_MULTI_GEARS)
+
+#define TOTAL_CORE_NUM	(CORE_NUM_L+CORE_NUM_B+CORE_NUM_BB)
+#define CORE_NUM_L	(4)
+#define CORE_NUM_B	(3)
+#define CORE_NUM_BB	(1)
+
+static inline unsigned int get_cluster_cpu_core(unsigned int id)
+{
+	if (id == 0)
+		return CORE_NUM_L;
+	else if (id == 1)
+		return CORE_NUM_B;
+	else if (id == 2)
+		return CORE_NUM_BB;
+	return 0;
+}
+
+/*==============================================================*/
+/* Enum								*/
+/*==============================================================*/
+enum ppm_cluster {
+	PPM_CLUSTER_L = 0,
+	PPM_CLUSTER_B,
+	PPM_CLUSTER_BB,
+
+	NR_PPM_CLUSTERS,
+};
+
+#else
+
+#define TOTAL_CORE_NUM	(CORE_NUM_L+CORE_NUM_B)
+#define CORE_NUM_L	(4)
+#define CORE_NUM_B	(4)
+
+#define get_cluster_cpu_core(id)	\
+		(id ? CORE_NUM_B : CORE_NUM_L)
+
+/*==============================================================*/
+/* Enum								*/
+/*==============================================================*/
+enum ppm_cluster {
+	PPM_CLUSTER_L = 0,
+	PPM_CLUSTER_B,
+
+	NR_PPM_CLUSTERS,
+};
+
+#endif /* CONFIG_MTK_SCHED_MULTI_GEARS */
+
+/*==============================================================*/
+/* Data Structures						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* Global Variables						*/
+/*==============================================================*/
+
+/*==============================================================*/
+/* APIs								*/
+/*==============================================================*/
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif

drivers/misc/mediatek/performance/boost_ctrl/topo_ctrl/topo_ctrl.c

@@ -0,0 +1,256 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2019 MediaTek Inc.
+ */
+
+#define pr_fmt(fmt) "[topo_ctrl]"fmt
+
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/topology.h>
+#include <sched/sched.h>
+
+#include "topo_ctrl.h"
+#include "mtk_perfmgr_internal.h"
+
+/* data type */
+struct topo_plat_cluster_info {
+	unsigned int core_num;
+	unsigned int cpu_id;	/* cpu id of the dvfs policy owner */
+	struct cpumask cpus;
+};
+
+/* global variable */
+int topo_cluster_num;
+
+static int *calc_cpu_cap, *calc_cpu_num;
+static int  s_clstr_core, b_clstr_core;
+
+static struct topo_plat_cluster_info *topo_cluster_info;
+
+int topo_ctrl_get_nr_clusters(void)
+{
+	return topo_cluster_num;
+}
+EXPORT_SYMBOL(topo_ctrl_get_nr_clusters);
+
+int topo_ctrl_get_cluster_cpu_id(int id)
+{
+	if (id < 0 || id >= topo_cluster_num)
+		return -1;
+
+	return topo_cluster_info[id].cpu_id;
+}
+EXPORT_SYMBOL(topo_ctrl_get_cluster_cpu_id);
+
+/***************************************/
+static void topo_platform_init(void)
+{
+	int i, j, bit = 0, cpu, clus_id;
+
+	/* get cluster num */
+	topo_cluster_num = arch_nr_clusters();
+	if (topo_cluster_num <= 0)
+		return;
+
+	topo_cluster_info =	kcalloc(topo_cluster_num,
+		sizeof(struct topo_plat_cluster_info), GFP_KERNEL);
+	if (!topo_cluster_info) {
+		topo_cluster_num = 0;
+		return;
+	}
+
+	/* init value */
+	for (i = 0; i < topo_cluster_num; i++)
+		topo_cluster_info[i].core_num = 0;
+
+	/* calculate cpu number */
+	for_each_possible_cpu(cpu) {
+		clus_id = arch_cpu_cluster_id(cpu);
+		if (clus_id < topo_cluster_num && clus_id >= 0)
+			topo_cluster_info[clus_id].core_num += 1;
+	}
+
+	for (i = 0; i < topo_cluster_num; i++) {
+		if (i > 0)
+			topo_cluster_info[i].cpu_id =
+				topo_cluster_info[i-1].cpu_id +
+				topo_cluster_info[i-1].core_num;
+		else
+			topo_cluster_info[i].cpu_id = 0;
+
+		cpumask_clear(&topo_cluster_info[i].cpus);
+
+		for (j = 0; j < topo_cluster_info[i].core_num; j++) {
+			cpumask_set_cpu(bit, &topo_cluster_info[i].cpus);
+			bit++;
+		}
+	}
+}
+
+static void calc_min_cpucap(void)
+{
+
+	int i, cpu_num = 0, min = INT_MAX, max = 0;
+	int cpu;
+	struct cpumask cpus;
+	struct cpumask cpu_online_cpumask;
+	unsigned long cap_orig;
+
+	for (i = 0; i < topo_cluster_num ; i++) {
+		memcpy(&cpus, &topo_cluster_info[i].cpus,
+			sizeof(struct cpumask));
+		cpumask_and(&cpu_online_cpumask,
+				&cpus, cpu_possible_mask);
+
+		calc_cpu_num[i] = cpumask_weight(&cpu_online_cpumask);
+
+		for_each_possible_cpu(cpu) {
+			if (arch_cpu_cluster_id(cpu) == i) {
+				cap_orig = capacity_orig_of(cpu);
+				break;
+			}
+		}
+
+		calc_cpu_cap[i] = (int)cap_orig;
+
+		if (calc_cpu_cap[i] < min) {
+			s_clstr_core = i;
+			min = calc_cpu_cap[i];
+		}
+		if (calc_cpu_cap[i] > max) {
+			b_clstr_core = i;
+			max = calc_cpu_cap[i];
+		}
+		cpu_num += calc_cpu_num[i];
+	}
+}
+
+int get_min_clstr_cap(void)
+{
+	/*get smallest cluster num*/
+	return s_clstr_core;
+}
+
+int get_max_clstr_cap(void)
+{
+	/*get biggest cluster num*/
+	return b_clstr_core;
+}
+
+static int perfmgr_glb_info_proc_show(struct seq_file *m, void *v)
+{
+	int i;
+
+	seq_printf(m, "perfmgr_clusters : %d\n", topo_cluster_num);
+
+	for (i = 0 ; i < topo_cluster_num ; i++) {
+		seq_printf(m, "calc_cpu_cap[%d]:%d\n", i, calc_cpu_cap[i]);
+		seq_printf(m, "calc_cpu_num[%d]:%d\n", i, calc_cpu_num[i]);
+	}
+	seq_printf(m, "s_clstr_core : %d\n", s_clstr_core);
+	seq_printf(m, "b_clstr_core : %d\n", b_clstr_core);
+	return 0;
+}
+
+static int perfmgr_topo_ctrl_proc_show(struct seq_file *m, void *v)
+{
+	seq_printf(m, "%d\n", topo_cluster_num);
+	return 0;
+}
+
+static int perfmgr_is_big_little_proc_show(struct seq_file *m, void *v)
+{
+	seq_printf(m, "%d\n", (topo_cluster_num) > 1 ? 1 : 0);
+	return 0;
+}
+
+static int perfmgr_nr_clusters_proc_show(struct seq_file *m, void *v)
+{
+	seq_printf(m, "%d\n", topo_cluster_num);
+	return 0;
+}
+
+static int perfmgr_cpus_per_cluster_proc_show(struct seq_file *m, void *v)
+{
+	int i;
+
+	for (i = 0; i < topo_cluster_num; i++)
+		seq_printf(m, "cluster%d: %0lx\n", i,
+			*cpumask_bits(&topo_cluster_info[i].cpus));
+
+	return 0;
+}
+
+PROC_FOPS_RO(topo_ctrl);
+PROC_FOPS_RO(glb_info);
+PROC_FOPS_RO(is_big_little);
+PROC_FOPS_RO(nr_clusters);
+PROC_FOPS_RO(cpus_per_cluster);
+
+/************************************************/
+int topo_ctrl_init(struct proc_dir_entry *parent)
+{
+	struct proc_dir_entry *topo_dir = NULL;
+	int ret = 0;
+	size_t i;
+
+	struct pentry {
+		const char *name;
+		const struct file_operations *fops;
+	};
+
+	const struct pentry entries[] = {
+		PROC_ENTRY(topo_ctrl),
+		PROC_ENTRY(glb_info),
+		PROC_ENTRY(is_big_little),
+		PROC_ENTRY(nr_clusters),
+		PROC_ENTRY(cpus_per_cluster),
+	};
+
+	topo_dir = proc_mkdir("topo_ctrl", parent);
+
+	if (!topo_dir)
+		pr_debug("topo_dir null\n ");
+
+	/* create procfs */
+	for (i = 0; i < ARRAY_SIZE(entries); i++) {
+		if (!proc_create(entries[i].name, 0644,
+					topo_dir, entries[i].fops)) {
+			pr_debug("%s(), create /topo_ctrl%s failed\n",
+					__func__, entries[i].name);
+			ret = -EINVAL;
+			goto out;
+		}
+	}
+
+	topo_cluster_num = 0;
+	topo_cluster_info = NULL;
+	topo_platform_init();
+
+	if (topo_cluster_num > 0) {
+		calc_cpu_cap =  kcalloc(topo_cluster_num,
+			sizeof(int), GFP_KERNEL);
+		calc_cpu_num =  kcalloc(topo_cluster_num,
+			sizeof(int), GFP_KERNEL);
+		if (!calc_cpu_cap || !calc_cpu_num)
+			goto out;
+	} else {
+		calc_cpu_cap = NULL;
+		calc_cpu_num = NULL;
+	}
+	calc_min_cpucap();
+
+out:
+	return ret;
+}
+
+void topo_ctrl_exit(void)
+{
+	kfree(topo_cluster_info);
+	kfree(calc_cpu_cap);
+	kfree(calc_cpu_num);
+}
+