diff options
Diffstat (limited to 'sys/arch/i386/include/pctr.h')
| -rw-r--r-- | sys/arch/i386/include/pctr.h | 92 |
1 files changed, 50 insertions, 42 deletions
diff --git a/sys/arch/i386/include/pctr.h b/sys/arch/i386/include/pctr.h index 3deb3e47582..d4f5b80d316 100644 --- a/sys/arch/i386/include/pctr.h +++ b/sys/arch/i386/include/pctr.h @@ -1,4 +1,4 @@ -/* $OpenBSD: pctr.h,v 1.12 2003/05/27 23:52:01 fgsch Exp $ */ +/* $OpenBSD: pctr.h,v 1.13 2007/10/17 02:30:25 deraadt Exp $ */ /* * Pentium performance counter driver for OpenBSD. @@ -14,73 +14,81 @@ #include <sys/ioccom.h> -typedef u_quad_t pctrval; +typedef u_int64_t pctrval; -#define PCTR_NUM 2 +#define PCTR_NUM 4 struct pctrst { - u_int pctr_fn[PCTR_NUM]; /* Current settings of hardware counters */ + u_int pctr_fn[PCTR_NUM]; /* Current settings of counters */ pctrval pctr_tsc; /* Free-running 64-bit cycle counter */ - pctrval pctr_hwc[PCTR_NUM]; /* Values of the hardware counters */ + pctrval pctr_hwc[PCTR_NUM]; /* Values of the hardware counters */ pctrval pctr_idl; /* Iterations of the idle loop */ }; /* Bit values in fn fields and PIOCS ioctl's */ -#define P5CTR_K 0x40 /* Monitor kernel-level events */ -#define P5CTR_U 0x80 /* Monitor user-level events */ -#define P5CTR_C 0x100 /* count cycles rather than events */ +#define P5CTR_K 0x40 /* Monitor kernel-level events */ +#define P5CTR_U 0x80 /* Monitor user-level events */ +#define P5CTR_C 0x100 /* count cycles rather than events */ -#define P6CTR_U 0x010000 /* Monitor user-level events */ -#define P6CTR_K 0x020000 /* Monitor kernel-level events */ -#define P6CTR_E 0x040000 /* Edge detect */ -#define P6CTR_EN 0x400000 /* Enable counters (counter 0 only) */ -#define P6CTR_I 0x800000 /* Invert counter mask */ +#define P6CTR_U 0x010000 /* Monitor user-level events */ +#define P6CTR_K 0x020000 /* Monitor kernel-level events */ +#define P6CTR_E 0x040000 /* Edge detect */ +#define P6CTR_EN 0x400000 /* Enable counters (counter 0 only) */ +#define P6CTR_I 0x800000 /* Invert counter mask */ /* Unit Mask bits */ -#define P6CTR_UM_M 0x0800 /* Modified cache lines */ -#define P6CTR_UM_E 0x0400 /* Exclusive cache lines */ -#define P6CTR_UM_S 0x0200 /* Shared cache lines */ -#define P6CTR_UM_I 0x0100 /* Invalid cache lines */ -#define P6CTR_UM_MESI (P6CTR_UM_M|P6CTR_UM_E|P6CTR_UM_S|P6CTR_UM_I) -#define P6CTR_UM_A 0x2000 /* Any initiator (as opposed to self) */ - -#define P6CTR_CM_SHIFT 24 /* Left shift for counter mask */ - -/* ioctl to set which counter a device tracks. */ -#define PCIOCRD _IOR('c', 1, struct pctrst) /* Read counter value */ -#define PCIOCS0 _IOW('c', 8, unsigned int) /* Set counter 0 function */ -#define PCIOCS1 _IOW('c', 9, unsigned int) /* Set counter 1 function */ +#define P6CTR_UM_M 0x0800 /* Modified cache lines */ +#define P6CTR_UM_E 0x0400 /* Exclusive cache lines */ +#define P6CTR_UM_S 0x0200 /* Shared cache lines */ +#define P6CTR_UM_I 0x0100 /* Invalid cache lines */ +#define P6CTR_UM_MESI (P6CTR_UM_M|P6CTR_UM_E|P6CTR_UM_S|P6CTR_UM_I) +#define P6CTR_UM_A 0x2000 /* Any initiator */ + +#define P6CTR_UM_SHIFT 8 /* Left shift for unit mask */ +#define P6CTR_CM_SHIFT 24 /* Left shift for counter mask */ + +/* ioctl to set which counter a device tracks */ +#define PCIOCRD _IOR('c', 1, struct pctrst) /* Read counter value */ +#define PCIOCS0 _IOW('c', 8, unsigned int) /* Set counter 0 function */ +#define PCIOCS1 _IOW('c', 9, unsigned int) /* Set counter 1 function */ +#define PCIOCS2 _IOW('c', 10, unsigned int) /* Set counter 0 function */ +#define PCIOCS3 _IOW('c', 11, unsigned int) /* Set counter 1 function */ #define _PATH_PCTR "/dev/pctr" -#define rdtsc() \ -({ \ - pctrval v; \ - __asm __volatile ("rdtsc" : "=A" (v)); \ - v; \ +#define rdtsc() \ +({ \ + pctrval v; \ + __asm __volatile ("rdtsc" : "=A" (v)); \ + v; \ }) /* Read the performance counters (Pentium Pro only) */ -#define rdpmc(ctr) \ -({ \ - pctrval v; \ - __asm __volatile ("rdpmc\n" \ - "\tandl $0xff, %%edx" \ - : "=A" (v) : "c" (ctr)); \ - v; \ +#define rdpmc(ctr) \ +({ \ + pctrval v; \ + __asm __volatile ("rdpmc\n" \ + "\tandl $0xff, %%edx" \ + : "=A" (v) : "c" (ctr)); \ + v; \ }) #ifdef _KERNEL #define rdmsr(msr) \ ({ \ - pctrval v; \ - __asm __volatile ("rdmsr" : "=A" (v) : "c" (msr)); \ - v; \ + pctrval v; \ + __asm __volatile ("rdmsr" : "=A" (v) : "c" (msr)); \ + v; \ }) #define wrmsr(msr, v) \ - __asm __volatile ("wrmsr" :: "A" ((u_quad_t) (v)), "c" (msr)); + __asm __volatile ("wrmsr" :: "A" ((u_quad_t) (v)), "c" (msr)); + +void pctrattach(int); +int pctropen(dev_t, int, int, struct proc *); +int pctrclose(dev_t, int, int, struct proc *); +int pctrioctl(dev_t, u_long, caddr_t, int, struct proc *); #endif /* _KERNEL */ #endif /* ! _I386_PCTR_H_ */ |