47 lines
1.3 KiB
C
47 lines
1.3 KiB
C
#ifndef __PCR_H
|
|
#define __PCR_H
|
|
|
|
struct pcr_ops {
|
|
u64 (*read)(void);
|
|
void (*write)(u64);
|
|
};
|
|
extern const struct pcr_ops *pcr_ops;
|
|
|
|
extern void deferred_pcr_work_irq(int irq, struct pt_regs *regs);
|
|
extern void schedule_deferred_pcr_work(void);
|
|
|
|
#define PCR_PIC_PRIV 0x00000001 /* PIC access is privileged */
|
|
#define PCR_STRACE 0x00000002 /* Trace supervisor events */
|
|
#define PCR_UTRACE 0x00000004 /* Trace user events */
|
|
#define PCR_N2_HTRACE 0x00000008 /* Trace hypervisor events */
|
|
#define PCR_N2_TOE_OV0 0x00000010 /* Trap if PIC 0 overflows */
|
|
#define PCR_N2_TOE_OV1 0x00000020 /* Trap if PIC 1 overflows */
|
|
#define PCR_N2_MASK0 0x00003fc0
|
|
#define PCR_N2_MASK0_SHIFT 6
|
|
#define PCR_N2_SL0 0x0003c000
|
|
#define PCR_N2_SL0_SHIFT 14
|
|
#define PCR_N2_OV0 0x00040000
|
|
#define PCR_N2_MASK1 0x07f80000
|
|
#define PCR_N2_MASK1_SHIFT 19
|
|
#define PCR_N2_SL1 0x78000000
|
|
#define PCR_N2_SL1_SHIFT 27
|
|
#define PCR_N2_OV1 0x80000000
|
|
|
|
extern unsigned int picl_shift;
|
|
|
|
/* In order to commonize as much of the implementation as
|
|
* possible, we use PICH as our counter. Mostly this is
|
|
* to accomodate Niagara-1 which can only count insn cycles
|
|
* in PICH.
|
|
*/
|
|
static inline u64 picl_value(unsigned int nmi_hz)
|
|
{
|
|
u32 delta = local_cpu_data().clock_tick / (nmi_hz << picl_shift);
|
|
|
|
return ((u64)((0 - delta) & 0xffffffff)) << 32;
|
|
}
|
|
|
|
extern u64 pcr_enable;
|
|
|
|
#endif /* __PCR_H */
|