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David S. Miller3eb80572009-01-21 21:30:23 -08001#ifndef __PCR_H
2#define __PCR_H
3
4struct pcr_ops {
5 u64 (*read)(void);
6 void (*write)(u64);
7};
8extern const struct pcr_ops *pcr_ops;
9
10extern void deferred_pcr_work_irq(int irq, struct pt_regs *regs);
11extern void schedule_deferred_pcr_work(void);
12
13#define PCR_PIC_PRIV 0x00000001 /* PIC access is privileged */
14#define PCR_STRACE 0x00000002 /* Trace supervisor events */
15#define PCR_UTRACE 0x00000004 /* Trace user events */
16#define PCR_N2_HTRACE 0x00000008 /* Trace hypervisor events */
17#define PCR_N2_TOE_OV0 0x00000010 /* Trap if PIC 0 overflows */
18#define PCR_N2_TOE_OV1 0x00000020 /* Trap if PIC 1 overflows */
19#define PCR_N2_MASK0 0x00003fc0
20#define PCR_N2_MASK0_SHIFT 6
21#define PCR_N2_SL0 0x0003c000
22#define PCR_N2_SL0_SHIFT 14
23#define PCR_N2_OV0 0x00040000
24#define PCR_N2_MASK1 0x07f80000
25#define PCR_N2_MASK1_SHIFT 19
26#define PCR_N2_SL1 0x78000000
27#define PCR_N2_SL1_SHIFT 27
28#define PCR_N2_OV1 0x80000000
29
David S. Millere5553a62009-01-29 21:22:47 -080030extern unsigned int picl_shift;
31
32/* In order to commonize as much of the implementation as
33 * possible, we use PICH as our counter. Mostly this is
34 * to accomodate Niagara-1 which can only count insn cycles
35 * in PICH.
36 */
37static inline u64 picl_value(unsigned int nmi_hz)
38{
39 u32 delta = local_cpu_data().clock_tick / (nmi_hz << picl_shift);
40
41 return ((u64)((0 - delta) & 0xffffffff)) << 32;
42}
43
44extern u64 pcr_enable;
45
David S. Miller3eb80572009-01-21 21:30:23 -080046#endif /* __PCR_H */