diff options
Diffstat (limited to 'ANDROID_3.4.5/drivers/oprofile')
| -rwxr-xr-x | ANDROID_3.4.5/drivers/oprofile/COPYING | 340 | ||||
| -rw-r--r-- | ANDROID_3.4.5/drivers/oprofile/oprof.c | 65 | ||||
| -rw-r--r-- | ANDROID_3.4.5/drivers/oprofile/oprof.h | 7 | ||||
| -rw-r--r-- | ANDROID_3.4.5/drivers/oprofile/timer_int.c | 111 |
4 files changed, 519 insertions, 4 deletions
diff --git a/ANDROID_3.4.5/drivers/oprofile/COPYING b/ANDROID_3.4.5/drivers/oprofile/COPYING new file mode 100755 index 00000000..d60c31a9 --- /dev/null +++ b/ANDROID_3.4.5/drivers/oprofile/COPYING @@ -0,0 +1,340 @@ + GNU GENERAL PUBLIC LICENSE + Version 2, June 1991 + + Copyright (C) 1989, 1991 Free Software Foundation, Inc. + 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + Preamble + + The licenses for most software are designed to take away your +freedom to share and change it. By contrast, the GNU General Public +License is intended to guarantee your freedom to share and change free +software--to make sure the software is free for all its users. This +General Public License applies to most of the Free Software +Foundation's software and to any other program whose authors commit to +using it. (Some other Free Software Foundation software is covered by +the GNU Library General Public License instead.) You can apply it to +your programs, too. + + When we speak of free software, we are referring to freedom, not +price. Our General Public Licenses are designed to make sure that you +have the freedom to distribute copies of free software (and charge for +this service if you wish), that you receive source code or can get it +if you want it, that you can change the software or use pieces of it +in new free programs; and that you know you can do these things. + + To protect your rights, we need to make restrictions that forbid +anyone to deny you these rights or to ask you to surrender the rights. +These restrictions translate to certain responsibilities for you if you +distribute copies of the software, or if you modify it. + + For example, if you distribute copies of such a program, whether +gratis or for a fee, you must give the recipients all the rights that +you have. 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To prevent this, we have made it clear that any +patent must be licensed for everyone's free use or not licensed at all. + + The precise terms and conditions for copying, distribution and +modification follow. + + GNU GENERAL PUBLIC LICENSE + TERMS AND CONDITIONS FOR COPYING, DISTRIBUTION AND MODIFICATION + + 0. This License applies to any program or other work which contains +a notice placed by the copyright holder saying it may be distributed +under the terms of this General Public License. The "Program", below, +refers to any such program or work, and a "work based on the Program" +means either the Program or any derivative work under copyright law: +that is to say, a work containing the Program or a portion of it, +either verbatim or with modifications and/or translated into another +language. (Hereinafter, translation is included without limitation in +the term "modification".) Each licensee is addressed as "you". + +Activities other than copying, distribution and modification are not +covered by this License; they are outside its scope. The act of +running the Program is not restricted, and the output from the Program +is covered only if its contents constitute a work based on the +Program (independent of having been made by running the Program). +Whether that is true depends on what the Program does. + + 1. You may copy and distribute verbatim copies of the Program's +source code as you receive it, in any medium, provided that you +conspicuously and appropriately publish on each copy an appropriate +copyright notice and disclaimer of warranty; keep intact all the +notices that refer to this License and to the absence of any warranty; +and give any other recipients of the Program a copy of this License +along with the Program. + +You may charge a fee for the physical act of transferring a copy, and +you may at your option offer warranty protection in exchange for a fee. + + 2. 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It is safest +to attach them to the start of each source file to most effectively +convey the exclusion of warranty; and each file should have at least +the "copyright" line and a pointer to where the full notice is found. + + <one line to give the program's name and a brief idea of what it does.> + Copyright (C) <year> <name of author> + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 2 of the License, or + (at your option) any later version. + + 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. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA + + +Also add information on how to contact you by electronic and paper mail. + +If the program is interactive, make it output a short notice like this +when it starts in an interactive mode: + + Gnomovision version 69, Copyright (C) year name of author + Gnomovision comes with ABSOLUTELY NO WARRANTY; for details type `show w'. + This is free software, and you are welcome to redistribute it + under certain conditions; type `show c' for details. + +The hypothetical commands `show w' and `show c' should show the appropriate +parts of the General Public License. Of course, the commands you use may +be called something other than `show w' and `show c'; they could even be +mouse-clicks or menu items--whatever suits your program. + +You should also get your employer (if you work as a programmer) or your +school, if any, to sign a "copyright disclaimer" for the program, if +necessary. Here is a sample; alter the names: + + Yoyodyne, Inc., hereby disclaims all copyright interest in the program + `Gnomovision' (which makes passes at compilers) written by James Hacker. + + <signature of Ty Coon>, 1 April 1989 + Ty Coon, President of Vice + +This General Public License does not permit incorporating your program into +proprietary programs. If your program is a subroutine library, you may +consider it more useful to permit linking proprietary applications with the +library. If this is what you want to do, use the GNU Library General +Public License instead of this License. diff --git a/ANDROID_3.4.5/drivers/oprofile/oprof.c b/ANDROID_3.4.5/drivers/oprofile/oprof.c index ed2c3ec0..fe37d854 100644 --- a/ANDROID_3.4.5/drivers/oprofile/oprof.c +++ b/ANDROID_3.4.5/drivers/oprofile/oprof.c @@ -33,7 +33,12 @@ static DEFINE_MUTEX(start_mutex); 0 - use performance monitoring hardware if available 1 - use the timer int mechanism regardless */ -static int timer = 0; +static int timer = 2; + +/* 2013-01-14 YJChen: Add Begin */ +extern int wmt_getsyspara(char *varname, unsigned char *varval, int *varlen); +unsigned int TIMER2_LATCH; +/* 2013-01-14 YJChen: Add End */ int oprofile_setup(void) { @@ -239,12 +244,48 @@ int oprofile_set_ulong(unsigned long *addr, unsigned long val) return err; } +#if 0 static int timer_mode; +#endif static int __init oprofile_init(void) { int err; +/* 2013-01-14 YJChen: Add Begin */ + char oprof_env_name[] = "wmt.oprofile.param"; + char oprof_env_buf[32] = "0"; + int varlen = 32; + int nEnable = 0; + int nSampleRate = 0; + + if (wmt_getsyspara(oprof_env_name, oprof_env_buf, &varlen) == 0) { + sscanf(oprof_env_buf, "%d:%d", &nEnable, &nSampleRate); + printk("wmt.oprofile.param = %d:%d\n", nEnable, nSampleRate); + if (nEnable != 1) { + printk("setting disable oprofile\n"); + return -ENODEV; + } + + if (nSampleRate == 0) { + // default value is 333us + nSampleRate = 333; + } + else if (nSampleRate < 10) { + // min value is 10us + nSampleRate = 10; + } + printk("Enable oprofile, Sample Interval = %d usec\n", nSampleRate); + TIMER2_LATCH = nSampleRate * 3; + } + else { + // not define wmt.oprofile.param, default disable + printk("default disable oprofile\n"); + return -ENODEV; + } +/* 2013-01-14 YJChen: Add End */ + +#if 0 /* always init architecture to setup backtrace support */ timer_mode = 0; err = oprofile_arch_init(&oprofile_ops); @@ -262,7 +303,25 @@ static int __init oprofile_init(void) if (err) return err; } - +#else + err = oprofile_arch_init(&oprofile_ops); + if (err < 0 || timer) { + if (timer == 1) { + printk(KERN_INFO "oprofile: using timer interrupt.\n"); + err = oprofile_timer_init(&oprofile_ops); + } + else if (timer == 2) { + printk(KERN_INFO "oprofile: using timer2 interrupt.\n"); + err = oprofile_timer2_init(&oprofile_ops); + } + else { + printk(KERN_INFO "oprofile: cannot use timer[%d] interrupt.\n", timer); + return -ENODEV; + } + if (err) + return err; + } +#endif return oprofilefs_register(); } @@ -270,7 +329,9 @@ static int __init oprofile_init(void) static void __exit oprofile_exit(void) { oprofilefs_unregister(); +#if 0 if (!timer_mode) +#endif oprofile_arch_exit(); } diff --git a/ANDROID_3.4.5/drivers/oprofile/oprof.h b/ANDROID_3.4.5/drivers/oprofile/oprof.h index d32ef816..a3cafd42 100644 --- a/ANDROID_3.4.5/drivers/oprofile/oprof.h +++ b/ANDROID_3.4.5/drivers/oprofile/oprof.h @@ -30,11 +30,18 @@ extern struct oprofile_operations oprofile_ops; extern unsigned long oprofile_started; extern unsigned long oprofile_backtrace_depth; +/* 2013-01-14 YJChen: Add Begin */ +extern unsigned int TIMER2_LATCH; +/* 2013-01-14 YJChen: Add End */ + struct super_block; struct dentry; void oprofile_create_files(struct super_block *sb, struct dentry *root); int oprofile_timer_init(struct oprofile_operations *ops); +/* 2013-01-14 YJChen: Add Begin */ +int oprofile_timer2_init(struct oprofile_operations *ops); +/* 2013-01-14 YJChen: Add End */ #ifdef CONFIG_OPROFILE_NMI_TIMER int op_nmi_timer_init(struct oprofile_operations *ops); #else diff --git a/ANDROID_3.4.5/drivers/oprofile/timer_int.c b/ANDROID_3.4.5/drivers/oprofile/timer_int.c index 93404f72..246c24a9 100644 --- a/ANDROID_3.4.5/drivers/oprofile/timer_int.c +++ b/ANDROID_3.4.5/drivers/oprofile/timer_int.c @@ -18,6 +18,12 @@ #include <asm/irq_regs.h> #include <asm/ptrace.h> +/* 2013-01-14 YJChen: Add Begin */ +#include <asm/mach/irq.h> +#include <linux/rtc.h> +#include <mach/hardware.h> +/* 2013-01-14 YJChen: Add End */ + #include "oprof.h" static DEFINE_PER_CPU(struct hrtimer, oprofile_hrtimer); @@ -111,10 +117,111 @@ int oprofile_timer_init(struct oprofile_operations *ops) { ops->create_files = NULL; ops->setup = oprofile_hrtimer_setup; - ops->shutdown = oprofile_hrtimer_shutdown; + ops->shutdown = oprofile_hrtimer_shutdown; ops->start = oprofile_hrtimer_start; ops->stop = oprofile_hrtimer_stop; - ops->cpu_type = "timer"; + ops->cpu_type = "timer"; printk(KERN_INFO "oprofile: using timer interrupt.\n"); return 0; } + +/* 2013-01-14 YJChen: Add Begin */ +extern unsigned int wmt_read_oscr(void); + +static int timer_notify(struct pt_regs *regs) +{ + oprofile_add_sample(regs, 0); + return 0; +} + +static irqreturn_t +wmt_timer2_interrupt(int irq, void *dev_id) +{ + unsigned int next_match; + int flag = 0; + do { + struct pt_regs *regs; + + if (flag == 1) + printk(KERN_INFO "wmt_timer2_interrupt while\n"); + + flag = 1; + + //struct pt_regs *regs = get_irq_regs(); // fix compile warning: ISO C90 forbids mixed declarations and code + regs = get_irq_regs(); + timer_notify(regs); + + /* Clear match on OS Timer 2 */ + OSTS_VAL = OSTS_M2; + next_match = OSM2_VAL = wmt_read_oscr() + TIMER2_LATCH; + } while ((signed long)(next_match - wmt_read_oscr()) <= 10/*0*/); + + return IRQ_HANDLED; +} + +static int timer2_start(void) +{ + unsigned int nCount; + unsigned int i = 0; + + /* Use OS Timer 2 as oprofile timer. */ + i = request_irq(IRQ_OST2, wmt_timer2_interrupt, IRQF_DISABLED, "timer2", NULL); + if (i != 0) { + printk(KERN_ERR "oprofile: unable to request IRQ%u for timer2\n", IRQ_OST2); + return i; + } + + nCount = wmt_read_oscr(); + //printk(KERN_INFO "%s Enter nCount=%d\n", __FUNCTION__, nCount); + + /* Set initial match */ + while (OSTA_VAL & OSTA_MWA2) + ; + + /* Disable match on timer 2 to cause interrupts. */ + OSTI_VAL &= ~OSTI_E2; + + OSM2_VAL = nCount + TIMER2_LATCH; + + /* Enable match on timer 2 to cause interrupts. */ + OSTI_VAL |= OSTI_E2; + + /* Let OS Timer free run. */ + if ((OSTC_VAL & OSTC_ENABLE) == 0) + OSTC_VAL |= OSTC_ENABLE; + + return 0; +} + +static void timer2_stop(void) +{ + /* Disable match on timer 2 to cause interrupts. */ + OSTI_VAL &= ~OSTI_E2; + + /* Set initial match */ + while (OSTA_VAL & OSTA_MWA2) + ; + + OSM2_VAL = 0; + + free_irq(IRQ_OST2, NULL); +} + +int __init oprofile_timer2_init(struct oprofile_operations *ops) +{ + int rc; + + rc = register_hotcpu_notifier(&oprofile_cpu_notifier); + if (rc) + return rc; + + ops->create_files = NULL; + ops->setup = oprofile_hrtimer_setup; + ops->shutdown = oprofile_hrtimer_shutdown; + ops->start = timer2_start; + ops->stop = timer2_stop; + ops->cpu_type = "timer"; + printk(KERN_INFO "oprofile: using timer2 interrupt.\n"); + return 0; +} +/* 2013-01-14 YJChen: Add End */
\ No newline at end of file |