[PATCH 13/17] 2.6.17.1 perfmon2 patch for review: modified i386 files

From: Stephane Eranian
Date: Fri Jun 23 2006 - 05:20:50 EST

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This patch contains the modified i386 files

diff -urp linux-2.6.17.1.orig/arch/i386/Kconfig linux-2.6.17.1/arch/i386/Kconfig
--- linux-2.6.17.1.orig/arch/i386/Kconfig 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/arch/i386/Kconfig 2006-06-21 04:22:51.000000000 -0700
@@ -762,6 +762,7 @@ config HOTPLUG_CPU
enable suspend on SMP systems. CPUs can be controlled through
/sys/devices/system/cpu.

+source "arch/i386/perfmon/Kconfig"

endmenu

diff -urp linux-2.6.17.1.orig/arch/i386/Makefile linux-2.6.17.1/arch/i386/Makefile
--- linux-2.6.17.1.orig/arch/i386/Makefile 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/arch/i386/Makefile 2006-06-21 04:22:51.000000000 -0700
@@ -87,6 +87,7 @@ mflags-y += -Iinclude/asm-i386/mach-defa
head-y := arch/i386/kernel/head.o arch/i386/kernel/init_task.o

libs-y += arch/i386/lib/
+core-$(CONFIG_PERFMON) += arch/i386/perfmon/
core-y += arch/i386/kernel/ \
arch/i386/mm/ \
arch/i386/$(mcore-y)/ \
diff -urp linux-2.6.17.1.orig/arch/i386/kernel/apic.c linux-2.6.17.1/arch/i386/kernel/apic.c
--- linux-2.6.17.1.orig/arch/i386/kernel/apic.c 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/arch/i386/kernel/apic.c 2006-06-21 04:22:51.000000000 -0700
@@ -27,6 +27,7 @@
#include <linux/sysdev.h>
#include <linux/cpu.h>
#include <linux/module.h>
+#include <linux/perfmon.h>

#include <asm/atomic.h>
#include <asm/smp.h>
@@ -1179,6 +1180,8 @@ inline void smp_local_timer_interrupt(st
update_process_times(user_mode_vm(regs));
#endif

+ pfm_handle_switch_timeout();
+
/*
* We take the 'long' return path, and there every subsystem
* grabs the apropriate locks (kernel lock/ irq lock).
diff -urp linux-2.6.17.1.orig/arch/i386/kernel/i8259.c linux-2.6.17.1/arch/i386/kernel/i8259.c
--- linux-2.6.17.1.orig/arch/i386/kernel/i8259.c 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/arch/i386/kernel/i8259.c 2006-06-21 04:22:51.000000000 -0700
@@ -11,6 +11,7 @@
#include <linux/kernel_stat.h>
#include <linux/sysdev.h>
#include <linux/bitops.h>
+#include <linux/perfmon.h>

#include <asm/8253pit.h>
#include <asm/atomic.h>
@@ -427,6 +428,8 @@ void __init init_IRQ(void)
*/
setup_pit_timer();

+ pfm_vector_init();
+
/*
* External FPU? Set up irq13 if so, for
* original braindamaged IBM FERR coupling.
diff -urp linux-2.6.17.1.orig/arch/i386/kernel/process.c linux-2.6.17.1/arch/i386/kernel/process.c
--- linux-2.6.17.1.orig/arch/i386/kernel/process.c 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/arch/i386/kernel/process.c 2006-06-21 04:22:51.000000000 -0700
@@ -33,6 +33,7 @@
#include <linux/delay.h>
#include <linux/reboot.h>
#include <linux/init.h>
+#include <linux/perfmon.h>
#include <linux/mc146818rtc.h>
#include <linux/module.h>
#include <linux/kallsyms.h>
@@ -380,6 +381,7 @@ void exit_thread(void)
tss->io_bitmap_base = INVALID_IO_BITMAP_OFFSET;
put_cpu();
}
+ pfm_exit_thread(tsk);
}

void flush_thread(void)
@@ -431,6 +433,8 @@ int copy_thread(int nr, unsigned long cl
savesegment(fs,p->thread.fs);
savesegment(gs,p->thread.gs);

+ pfm_copy_thread(p, childregs);
+
tsk = current;
if (unlikely(NULL != tsk->thread.io_bitmap_ptr)) {
p->thread.io_bitmap_ptr = kmalloc(IO_BITMAP_BYTES, GFP_KERNEL);
@@ -689,6 +693,8 @@ struct task_struct fastcall * __switch_t

disable_tsc(prev_p, next_p);

+ pfm_ctxswin(next_p);
+
return prev_p;
}

diff -urp linux-2.6.17.1.orig/arch/i386/kernel/signal.c linux-2.6.17.1/arch/i386/kernel/signal.c
--- linux-2.6.17.1.orig/arch/i386/kernel/signal.c 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/arch/i386/kernel/signal.c 2006-06-21 04:22:51.000000000 -0700
@@ -21,6 +21,7 @@
#include <linux/suspend.h>
#include <linux/ptrace.h>
#include <linux/elf.h>
+#include <linux/perfmon.h>
#include <asm/processor.h>
#include <asm/ucontext.h>
#include <asm/uaccess.h>
@@ -651,6 +652,11 @@ void do_notify_resume(struct pt_regs *re
clear_thread_flag(TIF_SINGLESTEP);
}

+ /*
+ * must be done before signals
+ */
+ pfm_handle_work();
+
/* deal with pending signal delivery */
if (thread_info_flags & (_TIF_SIGPENDING | _TIF_RESTORE_SIGMASK))
do_signal(regs);
diff -urp linux-2.6.17.1.orig/arch/i386/kernel/smp.c linux-2.6.17.1/arch/i386/kernel/smp.c
--- linux-2.6.17.1.orig/arch/i386/kernel/smp.c 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/arch/i386/kernel/smp.c 2006-06-21 04:22:51.000000000 -0700
@@ -624,3 +624,69 @@ fastcall void smp_call_function_interrup
}
}

+/*
+ * this function sends a 'generic call function' IPI to one other CPU
+ * in the system.
+ *
+ * cpu is a standard Linux logical CPU number.
+ */
+static void
+__smp_call_function_single(int cpu, void (*func) (void *info), void *info,
+ int nonatomic, int wait)
+{
+ struct call_data_struct data;
+ int cpus = 1;
+
+ data.func = func;
+ data.info = info;
+ atomic_set(&data.started, 0);
+ data.wait = wait;
+ if (wait)
+ atomic_set(&data.finished, 0);
+
+ call_data = &data;
+ wmb();
+ /* Send a message to all other CPUs and wait for them to respond */
+ send_IPI_mask(cpumask_of_cpu(cpu), CALL_FUNCTION_VECTOR);
+
+ /* Wait for response */
+ while (atomic_read(&data.started) != cpus)
+ cpu_relax();
+
+ if (!wait)
+ return;
+
+ while (atomic_read(&data.finished) != cpus)
+ cpu_relax();
+}
+
+/*
+ * smp_call_function_single - Run a function on another CPU
+ * @func: The function to run. This must be fast and non-blocking.
+ * @info: An arbitrary pointer to pass to the function.
+ * @nonatomic: Currently unused.
+ * @wait: If true, wait until function has completed on other CPUs.
+ *
+ * Retrurns 0 on success, else a negative status code.
+ *
+ * Does not return until the remote CPU is nearly ready to execute <func>
+ * or is or has executed.
+ */
+
+int smp_call_function_single (int cpu, void (*func) (void *info), void *info,
+ int nonatomic, int wait)
+{
+ /* prevent preemption and reschedule on another processor */
+ int me = get_cpu();
+ if (cpu == me) {
+ WARN_ON(1);
+ put_cpu();
+ return -EBUSY;
+ }
+ spin_lock_bh(&call_lock);
+ __smp_call_function_single(cpu, func, info, nonatomic, wait);
+ spin_unlock_bh(&call_lock);
+ put_cpu();
+ return 0;
+}
+EXPORT_SYMBOL(smp_call_function_single);
diff -urp linux-2.6.17.1.orig/arch/i386/kernel/syscall_table.S linux-2.6.17.1/arch/i386/kernel/syscall_table.S
--- linux-2.6.17.1.orig/arch/i386/kernel/syscall_table.S 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/arch/i386/kernel/syscall_table.S 2006-06-21 04:22:51.000000000 -0700
@@ -316,3 +316,15 @@ ENTRY(sys_call_table)
.long sys_sync_file_range
.long sys_tee /* 315 */
.long sys_vmsplice
+ .long sys_pfm_create_context
+ .long sys_pfm_write_pmcs
+ .long sys_pfm_write_pmds
+ .long sys_pfm_read_pmds /* 320 */
+ .long sys_pfm_load_context
+ .long sys_pfm_start
+ .long sys_pfm_stop
+ .long sys_pfm_restart
+ .long sys_pfm_create_evtsets /* 325 */
+ .long sys_pfm_getinfo_evtsets
+ .long sys_pfm_delete_evtsets
+ .long sys_pfm_unload_context
Only in linux-2.6.17.1/arch/i386: perfmon
diff -urp linux-2.6.17.1.orig/include/asm-i386/mach-default/entry_arch.h linux-2.6.17.1/include/asm-i386/mach-default/entry_arch.h
--- linux-2.6.17.1.orig/include/asm-i386/mach-default/entry_arch.h 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/include/asm-i386/mach-default/entry_arch.h 2006-06-21 04:22:51.000000000 -0700
@@ -31,4 +31,8 @@ BUILD_INTERRUPT(spurious_interrupt,SPURI
BUILD_INTERRUPT(thermal_interrupt,THERMAL_APIC_VECTOR)
#endif

+#ifdef CONFIG_PERFMON
+BUILD_INTERRUPT(pmu_interrupt,LOCAL_PERFMON_VECTOR)
+#endif
+
#endif
diff -urp linux-2.6.17.1.orig/include/asm-i386/mach-default/irq_vectors.h linux-2.6.17.1/include/asm-i386/mach-default/irq_vectors.h
--- linux-2.6.17.1.orig/include/asm-i386/mach-default/irq_vectors.h 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/include/asm-i386/mach-default/irq_vectors.h 2006-06-21 04:22:51.000000000 -0700
@@ -56,6 +56,7 @@
* sources per level' errata.
*/
#define LOCAL_TIMER_VECTOR 0xef
+#define LOCAL_PERFMON_VECTOR 0xee

/*
* First APIC vector available to drivers: (vectors 0x30-0xee)
@@ -63,7 +64,7 @@
* levels. (0x80 is the syscall vector)
*/
#define FIRST_DEVICE_VECTOR 0x31
-#define FIRST_SYSTEM_VECTOR 0xef
+#define FIRST_SYSTEM_VECTOR 0xee

#define TIMER_IRQ 0

Only in linux-2.6.17.1/include/asm-i386: perfmon.h
Only in linux-2.6.17.1/include/asm-i386: perfmon_p4_pebs_smpl.h
diff -urp linux-2.6.17.1.orig/include/asm-i386/processor.h linux-2.6.17.1/include/asm-i386/processor.h
--- linux-2.6.17.1.orig/include/asm-i386/processor.h 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/include/asm-i386/processor.h 2006-06-21 04:22:51.000000000 -0700
@@ -432,6 +432,7 @@ struct tss_struct {
*/
unsigned long io_bitmap_max;
struct thread_struct *io_bitmap_owner;
+
/*
* pads the TSS to be cacheline-aligned (size is 0x100)
*/
@@ -469,6 +470,7 @@ struct thread_struct {
unsigned long iopl;
/* max allowed port in the bitmap, in bytes: */
unsigned long io_bitmap_max;
+ void *pfm_context;
};

#define INIT_THREAD { \
diff -urp linux-2.6.17.1.orig/include/asm-i386/smp.h linux-2.6.17.1/include/asm-i386/smp.h
--- linux-2.6.17.1.orig/include/asm-i386/smp.h 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/include/asm-i386/smp.h 2006-06-21 04:22:51.000000000 -0700
@@ -41,7 +41,8 @@ extern void (*mtrr_hook) (void);
extern void zap_low_mappings (void);
extern void lock_ipi_call_lock(void);
extern void unlock_ipi_call_lock(void);
-
+extern int smp_call_function_single(int cpuid, void (*func) (void *info),
+ void *info, int retry, int wait);
#define MAX_APICID 256
extern u8 x86_cpu_to_apicid[];

diff -urp linux-2.6.17.1.orig/include/asm-i386/system.h linux-2.6.17.1/include/asm-i386/system.h
--- linux-2.6.17.1.orig/include/asm-i386/system.h 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/include/asm-i386/system.h 2006-06-21 04:22:51.000000000 -0700
@@ -14,6 +14,7 @@ extern struct task_struct * FASTCALL(__s

#define switch_to(prev,next,last) do { \
unsigned long esi,edi; \
+ pfm_ctxswout(prev); \
asm volatile("pushl %%ebp\n\t" \
"movl %%esp,%0\n\t" /* save ESP */ \
"movl %5,%%esp\n\t" /* restore ESP */ \
diff -urp linux-2.6.17.1.orig/include/asm-i386/unistd.h linux-2.6.17.1/include/asm-i386/unistd.h
--- linux-2.6.17.1.orig/include/asm-i386/unistd.h 2006-06-20 02:31:55.000000000 -0700
+++ linux-2.6.17.1/include/asm-i386/unistd.h 2006-06-21 04:22:51.000000000 -0700
@@ -322,8 +322,19 @@
#define __NR_sync_file_range 314
#define __NR_tee 315
#define __NR_vmsplice 316
+#define __NR_pfm_create_context 317
+#define __NR_pfm_write_pmcs (__NR_pfm_create_context+1)
+#define __NR_pfm_write_pmds (__NR_pfm_create_context+2)
+#define __NR_pfm_read_pmds (__NR_pfm_create_context+3)
+#define __NR_pfm_load_context (__NR_pfm_create_context+4)
+#define __NR_pfm_start (__NR_pfm_create_context+5)
+#define __NR_pfm_stop (__NR_pfm_create_context+6)
+#define __NR_pfm_restart (__NR_pfm_create_context+7)
+#define __NR_pfm_create_evtsets (__NR_pfm_create_context+8)
+#define __NR_pfm_getinfo_evtsets (__NR_pfm_create_context+9)
+#define __NR_pfm_delete_evtsets (__NR_pfm_create_context+10)

-#define NR_syscalls 317
+#define NR_syscalls 328

/*
* user-visible error numbers are in the range -1 - -128: see
-
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