Orange Pi5 kernel

Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards

3 Commits   0 Branches   0 Tags   |
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   1) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   2)  * This file is subject to the terms and conditions of the GNU General Public
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   3)  * License.  See the file "COPYING" in the main directory of this archive
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   4)  * for more details.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   5)  *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   6)  * Copyright (C) 2004, 2005 Ralf Baechle
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   7)  * Copyright (C) 2005 MIPS Technologies, Inc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   8)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300   9) #include <linux/compiler.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  10) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  11) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  12) #include <linux/oprofile.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  13) #include <linux/smp.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  14) #include <asm/cpu-info.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  15) #include <asm/cpu-type.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  17) #include "op_impl.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  18) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  19) extern struct op_mips_model op_model_mipsxx_ops __weak;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  20) extern struct op_mips_model op_model_loongson2_ops __weak;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  21) extern struct op_mips_model op_model_loongson3_ops __weak;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  22) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  23) static struct op_mips_model *model;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  24) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  25) static struct op_counter_config ctr[20];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  26) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  27) static int op_mips_setup(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  28) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  29) 	/* Pre-compute the values to stuff in the hardware registers.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  30) 	model->reg_setup(ctr);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  31) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  32) 	/* Configure the registers on all cpus.	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  33) 	on_each_cpu(model->cpu_setup, NULL, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  34) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  35) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  36) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  37) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  38) static int op_mips_create_files(struct dentry *root)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  39) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  40) 	int i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  41) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  42) 	for (i = 0; i < model->num_counters; ++i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  43) 		struct dentry *dir;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  44) 		char buf[4];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  45) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  46) 		snprintf(buf, sizeof buf, "%d", i);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  47) 		dir = oprofilefs_mkdir(root, buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  48) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  49) 		oprofilefs_create_ulong(dir, "enabled", &ctr[i].enabled);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  50) 		oprofilefs_create_ulong(dir, "event", &ctr[i].event);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  51) 		oprofilefs_create_ulong(dir, "count", &ctr[i].count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  52) 		oprofilefs_create_ulong(dir, "kernel", &ctr[i].kernel);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  53) 		oprofilefs_create_ulong(dir, "user", &ctr[i].user);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  54) 		oprofilefs_create_ulong(dir, "exl", &ctr[i].exl);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  55) 		/* Dummy.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  56) 		oprofilefs_create_ulong(dir, "unit_mask", &ctr[i].unit_mask);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  57) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  58) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  59) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  61) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  62) static int op_mips_start(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  63) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  64) 	on_each_cpu(model->cpu_start, NULL, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  65) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  66) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  67) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  68) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  69) static void op_mips_stop(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  70) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  71) 	/* Disable performance monitoring for all counters.  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  72) 	on_each_cpu(model->cpu_stop, NULL, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  73) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  74) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  75) int __init oprofile_arch_init(struct oprofile_operations *ops)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  76) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  77) 	struct op_mips_model *lmodel = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  78) 	int res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  79) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  80) 	switch (boot_cpu_type()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  81) 	case CPU_5KC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  82) 	case CPU_M14KC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  83) 	case CPU_M14KEC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  84) 	case CPU_20KC:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  85) 	case CPU_24K:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  86) 	case CPU_25KF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  87) 	case CPU_34K:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  88) 	case CPU_1004K:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  89) 	case CPU_74K:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  90) 	case CPU_1074K:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  91) 	case CPU_INTERAPTIV:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  92) 	case CPU_PROAPTIV:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  93) 	case CPU_P5600:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  94) 	case CPU_I6400:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  95) 	case CPU_M5150:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  96) 	case CPU_LOONGSON32:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  97) 	case CPU_SB1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  98) 	case CPU_SB1A:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  99) 	case CPU_R10000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) 	case CPU_R12000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) 	case CPU_R14000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) 	case CPU_R16000:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) 	case CPU_XLR:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) 		lmodel = &op_model_mipsxx_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) 	case CPU_LOONGSON2EF:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) 		lmodel = &op_model_loongson2_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) 	case CPU_LOONGSON64:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) 		lmodel = &op_model_loongson3_ops;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) 		break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) 	/*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) 	 * Always set the backtrace. This allows unsupported CPU types to still
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) 	 * use timer-based oprofile.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) 	 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) 	ops->backtrace = op_mips_backtrace;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) 	if (!lmodel)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) 		return -ENODEV;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) 	res = lmodel->init();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) 	if (res)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) 		return res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) 	model = lmodel;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) 	ops->create_files	= op_mips_create_files;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) 	ops->setup		= op_mips_setup;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) 	//ops->shutdown		= op_mips_shutdown;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) 	ops->start		= op_mips_start;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) 	ops->stop		= op_mips_stop;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) 	ops->cpu_type		= lmodel->cpu_type;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) 	printk(KERN_INFO "oprofile: using %s performance monitoring.\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) 	       lmodel->cpu_type);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) 	return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) void oprofile_arch_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) 	if (model)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) 		model->exit();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }