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Commit 3b0ca931 authored by Stéphane Eranian's avatar Stéphane Eranian Committed by David Mosberger
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[PATCH] ia64: perfmon update 

Here is the patch. It is rather big because there is some renaming and
cleanups.  This patch bring 2.5 in line with 2.4.20: perfmon-1.3

It adds:
        - idle task exclusion
        - less ctxsw overhead in system wide
        - cleanups most of the inline asm
        - don't use PAL anymore to determine PMU features
        - added temporary hooks for custom overflow handlers (VTUNE/Oprofile)
        - renaming of the perfmon init functions

Thanks.
parent 51792fe4
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Showing with 583 additions and 315 deletions
arch/ia64/kernel/ia64_ksyms.c
View file @ 3b0ca931
...@@ -142,4 +142,8 @@ EXPORT_SYMBOL(efi_dir); ...@@ -142,4 +142,8 @@ EXPORT_SYMBOL(efi_dir);
EXPORT_SYMBOL(ia64_mv); EXPORT_SYMBOL(ia64_mv);
#endif #endif
EXPORT_SYMBOL(machvec_noop); EXPORT_SYMBOL(machvec_noop);
#ifdef CONFIG_PERFMON
#include <asm/perfmon.h>
EXPORT_SYMBOL(pfm_install_alternate_syswide_subsystem);
EXPORT_SYMBOL(pfm_remove_alternate_syswide_subsystem);
#endif
arch/ia64/kernel/irq_ia64.c
View file @ 3b0ca931
...@@ -178,7 +178,7 @@ init_IRQ (void) ...@@ -178,7 +178,7 @@ init_IRQ (void)
register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction); register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction);
#endif #endif
#ifdef CONFIG_PERFMON #ifdef CONFIG_PERFMON
perfmon_init_percpu(); pfm_init_percpu();
#endif #endif
platform_irq_init(); platform_irq_init();
} }
......
arch/ia64/kernel/perfmon.c
View file @ 3b0ca931
This diff is collapsed.
arch/ia64/kernel/perfmon_generic.h
View file @ 3b0ca931
/*
* This file contains the architected PMU register description tables
* and pmc checker used by perfmon.c.
*
* Copyright (C) 2002 Hewlett Packard Co
* Stephane Eranian <eranian@hpl.hp.com>
*/
#define RDEP(x) (1UL<<(x)) #define RDEP(x) (1UL<<(x))
#if defined(CONFIG_ITANIUM) || defined(CONFIG_MCKINLEY) #if defined(CONFIG_ITANIUM) || defined (CONFIG_MCKINLEY)
#error "This file should only be used when CONFIG_ITANIUM and CONFIG_MCKINLEY are not defined" #error "This file should not be used when CONFIG_ITANIUM or CONFIG_MCKINLEY is defined"
#endif #endif
static pfm_reg_desc_t pmc_desc[PMU_MAX_PMCS]={ static pfm_reg_desc_t pmc_gen_desc[PMU_MAX_PMCS]={
/* pmc0 */ { PFM_REG_CONTROL , 0, 0x1UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc0 */ { PFM_REG_CONTROL , 0, 0x1UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
/* pmc1 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc1 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
/* pmc2 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc2 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
...@@ -16,7 +23,7 @@ static pfm_reg_desc_t pmc_desc[PMU_MAX_PMCS]={ ...@@ -16,7 +23,7 @@ static pfm_reg_desc_t pmc_desc[PMU_MAX_PMCS]={
{ PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */ { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
}; };
static pfm_reg_desc_t pmd_desc[PMU_MAX_PMDS]={ static pfm_reg_desc_t pmd_gen_desc[PMU_MAX_PMDS]={
/* pmd0 */ { PFM_REG_NOTIMPL , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* pmd0 */ { PFM_REG_NOTIMPL , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}},
/* pmd1 */ { PFM_REG_NOTIMPL , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* pmd1 */ { PFM_REG_NOTIMPL , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}},
/* pmd2 */ { PFM_REG_NOTIMPL , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* pmd2 */ { PFM_REG_NOTIMPL , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}},
...@@ -27,3 +34,15 @@ static pfm_reg_desc_t pmd_desc[PMU_MAX_PMDS]={ ...@@ -27,3 +34,15 @@ static pfm_reg_desc_t pmd_desc[PMU_MAX_PMDS]={
/* pmd7 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(7),0UL, 0UL, 0UL}}, /* pmd7 */ { PFM_REG_COUNTING, 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {RDEP(7),0UL, 0UL, 0UL}},
{ PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */ { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
}; };
/*
* impl_pmcs, impl_pmds are computed at runtime to minimize errors!
*/
static pmu_config_t pmu_conf={
disabled: 1,
ovfl_val: (1UL << 32) - 1,
num_ibrs: 8,
num_dbrs: 8,
pmd_desc: pfm_gen_pmd_desc,
pmc_desc: pfm_gen_pmc_desc
};
arch/ia64/kernel/perfmon_itanium.h
View file @ 3b0ca931
...@@ -15,7 +15,7 @@ ...@@ -15,7 +15,7 @@
static int pfm_ita_pmc_check(struct task_struct *task, unsigned int cnum, unsigned long *val, struct pt_regs *regs); static int pfm_ita_pmc_check(struct task_struct *task, unsigned int cnum, unsigned long *val, struct pt_regs *regs);
static int pfm_write_ibr_dbr(int mode, struct task_struct *task, void *arg, int count, struct pt_regs *regs); static int pfm_write_ibr_dbr(int mode, struct task_struct *task, void *arg, int count, struct pt_regs *regs);
static pfm_reg_desc_t pfm_pmc_desc[PMU_MAX_PMCS]={ static pfm_reg_desc_t pfm_ita_pmc_desc[PMU_MAX_PMCS]={
/* pmc0 */ { PFM_REG_CONTROL , 0, 0x1UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc0 */ { PFM_REG_CONTROL , 0, 0x1UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
/* pmc1 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc1 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
/* pmc2 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc2 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
...@@ -33,7 +33,7 @@ static pfm_reg_desc_t pfm_pmc_desc[PMU_MAX_PMCS]={ ...@@ -33,7 +33,7 @@ static pfm_reg_desc_t pfm_pmc_desc[PMU_MAX_PMCS]={
{ PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */ { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
}; };
static pfm_reg_desc_t pfm_pmd_desc[PMU_MAX_PMDS]={ static pfm_reg_desc_t pfm_ita_pmd_desc[PMU_MAX_PMDS]={
/* pmd0 */ { PFM_REG_BUFFER , 0, 0UL, -1UL, NULL, NULL, {RDEP(1),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}}, /* pmd0 */ { PFM_REG_BUFFER , 0, 0UL, -1UL, NULL, NULL, {RDEP(1),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}},
/* pmd1 */ { PFM_REG_BUFFER , 0, 0UL, -1UL, NULL, NULL, {RDEP(0),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}}, /* pmd1 */ { PFM_REG_BUFFER , 0, 0UL, -1UL, NULL, NULL, {RDEP(0),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}},
/* pmd2 */ { PFM_REG_BUFFER , 0, 0UL, -1UL, NULL, NULL, {RDEP(3)|RDEP(17),0UL, 0UL, 0UL}, {RDEP(11),0UL, 0UL, 0UL}}, /* pmd2 */ { PFM_REG_BUFFER , 0, 0UL, -1UL, NULL, NULL, {RDEP(3)|RDEP(17),0UL, 0UL, 0UL}, {RDEP(11),0UL, 0UL, 0UL}},
...@@ -55,6 +55,19 @@ static pfm_reg_desc_t pfm_pmd_desc[PMU_MAX_PMDS]={ ...@@ -55,6 +55,19 @@ static pfm_reg_desc_t pfm_pmd_desc[PMU_MAX_PMDS]={
{ PFM_REG_END , 0, 0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */ { PFM_REG_END , 0, 0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
}; };
/*
* impl_pmcs, impl_pmds are computed at runtime to minimize errors!
*/
static pmu_config_t pmu_conf={
disabled: 1,
ovfl_val: (1UL << 32) - 1,
num_ibrs: 8,
num_dbrs: 8,
pmd_desc: pfm_ita_pmd_desc,
pmc_desc: pfm_ita_pmc_desc
};
static int static int
pfm_ita_pmc_check(struct task_struct *task, unsigned int cnum, unsigned long *val, struct pt_regs *regs) pfm_ita_pmc_check(struct task_struct *task, unsigned int cnum, unsigned long *val, struct pt_regs *regs)
{ {
......
arch/ia64/kernel/perfmon_mckinley.h
View file @ 3b0ca931
...@@ -16,7 +16,7 @@ static int pfm_mck_reserved(struct task_struct *task, unsigned int cnum, unsigne ...@@ -16,7 +16,7 @@ static int pfm_mck_reserved(struct task_struct *task, unsigned int cnum, unsigne
static int pfm_mck_pmc_check(struct task_struct *task, unsigned int cnum, unsigned long *val, struct pt_regs *regs); static int pfm_mck_pmc_check(struct task_struct *task, unsigned int cnum, unsigned long *val, struct pt_regs *regs);
static int pfm_write_ibr_dbr(int mode, struct task_struct *task, void *arg, int count, struct pt_regs *regs); static int pfm_write_ibr_dbr(int mode, struct task_struct *task, void *arg, int count, struct pt_regs *regs);
static pfm_reg_desc_t pfm_pmc_desc[PMU_MAX_PMCS]={ static pfm_reg_desc_t pfm_mck_pmc_desc[PMU_MAX_PMCS]={
/* pmc0 */ { PFM_REG_CONTROL , 0, 0x1UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc0 */ { PFM_REG_CONTROL , 0, 0x1UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
/* pmc1 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc1 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
/* pmc2 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}}, /* pmc2 */ { PFM_REG_CONTROL , 0, 0x0UL, -1UL, NULL, NULL, {0UL,0UL, 0UL, 0UL}, {0UL,0UL, 0UL, 0UL}},
...@@ -36,7 +36,7 @@ static pfm_reg_desc_t pfm_pmc_desc[PMU_MAX_PMCS]={ ...@@ -36,7 +36,7 @@ static pfm_reg_desc_t pfm_pmc_desc[PMU_MAX_PMCS]={
{ PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */ { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
}; };
static pfm_reg_desc_t pfm_pmd_desc[PMU_MAX_PMDS]={ static pfm_reg_desc_t pfm_mck_pmd_desc[PMU_MAX_PMDS]={
/* pmd0 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(1),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}}, /* pmd0 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(1),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}},
/* pmd1 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(0),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}}, /* pmd1 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(0),0UL, 0UL, 0UL}, {RDEP(10),0UL, 0UL, 0UL}},
/* pmd2 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(3)|RDEP(17),0UL, 0UL, 0UL}, {RDEP(11),0UL, 0UL, 0UL}}, /* pmd2 */ { PFM_REG_BUFFER , 0, 0x0UL, -1UL, NULL, NULL, {RDEP(3)|RDEP(17),0UL, 0UL, 0UL}, {RDEP(11),0UL, 0UL, 0UL}},
...@@ -58,6 +58,19 @@ static pfm_reg_desc_t pfm_pmd_desc[PMU_MAX_PMDS]={ ...@@ -58,6 +58,19 @@ static pfm_reg_desc_t pfm_pmd_desc[PMU_MAX_PMDS]={
{ PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */ { PFM_REG_END , 0, 0x0UL, -1UL, NULL, NULL, {0,}, {0,}}, /* end marker */
}; };
/*
* impl_pmcs, impl_pmds are computed at runtime to minimize errors!
*/
static pmu_config_t pmu_conf={
disabled: 1,
ovfl_val: (1UL << 47) - 1,
num_ibrs: 8,
num_dbrs: 8,
pmd_desc: pfm_mck_pmd_desc,
pmc_desc: pfm_mck_pmc_desc
};
/* /*
* PMC reserved fields must have their power-up values preserved * PMC reserved fields must have their power-up values preserved
*/ */
......
arch/ia64/kernel/process.c
View file @ 3b0ca931
...@@ -205,6 +205,10 @@ cpu_idle (void *unused) ...@@ -205,6 +205,10 @@ cpu_idle (void *unused)
void void
ia64_save_extra (struct task_struct *task) ia64_save_extra (struct task_struct *task)
{ {
#ifdef CONFIG_PERFMON
unsigned long info;
#endif
if ((task->thread.flags & IA64_THREAD_DBG_VALID) != 0) if ((task->thread.flags & IA64_THREAD_DBG_VALID) != 0)
ia64_save_debug_regs(&task->thread.dbr[0]); ia64_save_debug_regs(&task->thread.dbr[0]);
...@@ -212,8 +216,9 @@ ia64_save_extra (struct task_struct *task) ...@@ -212,8 +216,9 @@ ia64_save_extra (struct task_struct *task)
if ((task->thread.flags & IA64_THREAD_PM_VALID) != 0) if ((task->thread.flags & IA64_THREAD_PM_VALID) != 0)
pfm_save_regs(task); pfm_save_regs(task);
if (__get_cpu_var(pfm_syst_wide)) info = __get_cpu_var(pfm_syst_info);
pfm_syst_wide_update_task(task, 0); if (info & PFM_CPUINFO_SYST_WIDE)
pfm_syst_wide_update_task(task, info, 0);
#endif #endif
#ifdef CONFIG_IA32_SUPPORT #ifdef CONFIG_IA32_SUPPORT
...@@ -225,6 +230,10 @@ ia64_save_extra (struct task_struct *task) ...@@ -225,6 +230,10 @@ ia64_save_extra (struct task_struct *task)
void void
ia64_load_extra (struct task_struct *task) ia64_load_extra (struct task_struct *task)
{ {
#ifdef CONFIG_PERFMON
unsigned long info;
#endif
if ((task->thread.flags & IA64_THREAD_DBG_VALID) != 0) if ((task->thread.flags & IA64_THREAD_DBG_VALID) != 0)
ia64_load_debug_regs(&task->thread.dbr[0]); ia64_load_debug_regs(&task->thread.dbr[0]);
...@@ -232,8 +241,9 @@ ia64_load_extra (struct task_struct *task) ...@@ -232,8 +241,9 @@ ia64_load_extra (struct task_struct *task)
if ((task->thread.flags & IA64_THREAD_PM_VALID) != 0) if ((task->thread.flags & IA64_THREAD_PM_VALID) != 0)
pfm_load_regs(task); pfm_load_regs(task);
if (__get_cpu_var(pfm_syst_wide)) info = __get_cpu_var(pfm_syst_info);
pfm_syst_wide_update_task(task, 1); if (info & PFM_CPUINFO_SYST_WIDE)
pfm_syst_wide_update_task(task, info, 1);
#endif #endif
#ifdef CONFIG_IA32_SUPPORT #ifdef CONFIG_IA32_SUPPORT
......
arch/ia64/kernel/smpboot.c
View file @ 3b0ca931
...@@ -265,7 +265,7 @@ smp_callin (void) ...@@ -265,7 +265,7 @@ smp_callin (void)
extern void ia64_init_itm(void); extern void ia64_init_itm(void);
#ifdef CONFIG_PERFMON #ifdef CONFIG_PERFMON
extern void perfmon_init_percpu(void); extern void pfm_init_percpu(void);
#endif #endif
cpuid = smp_processor_id(); cpuid = smp_processor_id();
...@@ -300,7 +300,7 @@ smp_callin (void) ...@@ -300,7 +300,7 @@ smp_callin (void)
#endif #endif
#ifdef CONFIG_PERFMON #ifdef CONFIG_PERFMON
perfmon_init_percpu(); pfm_init_percpu();
#endif #endif
local_irq_enable(); local_irq_enable();
......
include/asm-ia64/perfmon.h
View file @ 3b0ca931
...@@ -40,6 +40,7 @@ ...@@ -40,6 +40,7 @@
#define PFM_FL_INHERIT_ALL 0x02 /* always clone pfm_context across fork() */ #define PFM_FL_INHERIT_ALL 0x02 /* always clone pfm_context across fork() */
#define PFM_FL_NOTIFY_BLOCK 0x04 /* block task on user level notifications */ #define PFM_FL_NOTIFY_BLOCK 0x04 /* block task on user level notifications */
#define PFM_FL_SYSTEM_WIDE 0x08 /* create a system wide context */ #define PFM_FL_SYSTEM_WIDE 0x08 /* create a system wide context */
#define PFM_FL_EXCL_IDLE 0x20 /* exclude idle task from system wide session */
/* /*
* PMC flags * PMC flags
...@@ -89,8 +90,9 @@ typedef struct { ...@@ -89,8 +90,9 @@ typedef struct {
unsigned long reg_reset_pmds[4]; /* which other counters to reset on overflow */ unsigned long reg_reset_pmds[4]; /* which other counters to reset on overflow */
unsigned long reg_random_seed; /* seed value when randomization is used */ unsigned long reg_random_seed; /* seed value when randomization is used */
unsigned long reg_random_mask; /* bitmask used to limit random value */ unsigned long reg_random_mask; /* bitmask used to limit random value */
unsigned long reg_last_reset_value;/* last value used to reset the PMD (PFM_READ_PMDS) */
unsigned long reserved[14]; /* for future use */ unsigned long reserved[13]; /* for future use */
} pfarg_reg_t; } pfarg_reg_t;
typedef struct { typedef struct {
...@@ -123,7 +125,7 @@ typedef struct { ...@@ -123,7 +125,7 @@ typedef struct {
* Define the version numbers for both perfmon as a whole and the sampling buffer format. * Define the version numbers for both perfmon as a whole and the sampling buffer format.
*/ */
#define PFM_VERSION_MAJ 1U #define PFM_VERSION_MAJ 1U
#define PFM_VERSION_MIN 1U #define PFM_VERSION_MIN 3U
#define PFM_VERSION (((PFM_VERSION_MAJ&0xffff)<<16)|(PFM_VERSION_MIN & 0xffff)) #define PFM_VERSION (((PFM_VERSION_MAJ&0xffff)<<16)|(PFM_VERSION_MIN & 0xffff))
#define PFM_SMPL_VERSION_MAJ 1U #define PFM_SMPL_VERSION_MAJ 1U
...@@ -156,13 +158,17 @@ typedef struct { ...@@ -156,13 +158,17 @@ typedef struct {
unsigned long stamp; /* timestamp */ unsigned long stamp; /* timestamp */
unsigned long ip; /* where did the overflow interrupt happened */ unsigned long ip; /* where did the overflow interrupt happened */
unsigned long regs; /* bitmask of which registers overflowed */ unsigned long regs; /* bitmask of which registers overflowed */
unsigned long period; /* unused */ unsigned long reserved; /* unused */
} perfmon_smpl_entry_t; } perfmon_smpl_entry_t;
extern int perfmonctl(pid_t pid, int cmd, void *arg, int narg); extern int perfmonctl(pid_t pid, int cmd, void *arg, int narg);
#ifdef __KERNEL__ #ifdef __KERNEL__
typedef struct {
void (*handler)(int irq, void *arg, struct pt_regs *regs);
} pfm_intr_handler_desc_t;
extern void pfm_save_regs (struct task_struct *); extern void pfm_save_regs (struct task_struct *);
extern void pfm_load_regs (struct task_struct *); extern void pfm_load_regs (struct task_struct *);
...@@ -174,9 +180,24 @@ extern void pfm_cleanup_owners (struct task_struct *); ...@@ -174,9 +180,24 @@ extern void pfm_cleanup_owners (struct task_struct *);
extern int pfm_use_debug_registers(struct task_struct *); extern int pfm_use_debug_registers(struct task_struct *);
extern int pfm_release_debug_registers(struct task_struct *); extern int pfm_release_debug_registers(struct task_struct *);
extern int pfm_cleanup_smpl_buf(struct task_struct *); extern int pfm_cleanup_smpl_buf(struct task_struct *);
extern void pfm_syst_wide_update_task(struct task_struct *, int); extern void pfm_syst_wide_update_task(struct task_struct *, unsigned long info, int is_ctxswin);
extern void pfm_ovfl_block_reset(void); extern void pfm_ovfl_block_reset(void);
extern void perfmon_init_percpu(void); extern void pfm_init_percpu(void);
/*
* hooks to allow VTune/Prospect to cooperate with perfmon.
* (reserved for system wide monitoring modules only)
*/
extern int pfm_install_alternate_syswide_subsystem(pfm_intr_handler_desc_t *h);
extern int pfm_remove_alternate_syswide_subsystem(pfm_intr_handler_desc_t *h);
/*
* describe the content of the local_cpu_date->pfm_syst_info field
*/
#define PFM_CPUINFO_SYST_WIDE 0x1 /* if set a system wide session exist */
#define PFM_CPUINFO_DCR_PP 0x2 /* if set the system wide session has started */
#define PFM_CPUINFO_EXCL_IDLE 0x4 /* the system wide session excludes the idle task */
#endif /* __KERNEL__ */ #endif /* __KERNEL__ */
......
include/asm-ia64/system.h
View file @ 3b0ca931
...@@ -205,8 +205,8 @@ extern void ia64_save_extra (struct task_struct *task); ...@@ -205,8 +205,8 @@ extern void ia64_save_extra (struct task_struct *task);
extern void ia64_load_extra (struct task_struct *task); extern void ia64_load_extra (struct task_struct *task);
#ifdef CONFIG_PERFMON #ifdef CONFIG_PERFMON
DECLARE_PER_CPU(int, pfm_syst_wide); DECLARE_PER_CPU(unsigned long, pfm_syst_info);
# define PERFMON_IS_SYSWIDE() (get_cpu_var(pfm_syst_wide) != 0) # define PERFMON_IS_SYSWIDE() (get_cpu_var(pfm_syst_info) & 0x1)
#else #else
# define PERFMON_IS_SYSWIDE() (0) # define PERFMON_IS_SYSWIDE() (0)
#endif #endif
......
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