projects / linux-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 3eb8057b DM |
1 | #ifndef __PCR_H |
| 2 | #define __PCR_H | |
| 3 | ||
| 4 | struct pcr_ops { | |
| 5 | u64 (*read)(void); | |
| 6 | void (*write)(u64); | |
| 7 | }; | |
| 8 | extern const struct pcr_ops *pcr_ops; | |
| 9 | ||
| 10 | extern void deferred_pcr_work_irq(int irq, struct pt_regs *regs); | |
| 11 | extern 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 | ||
| e5553a6d DM |
30 | extern 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 | |
| 25985edc | 34 | * to accommodate Niagara-1 which can only count insn cycles |
| e5553a6d DM |
35 | * in PICH. |
| 36 | */ | |
| 37 | static 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 | ||
| 44 | extern u64 pcr_enable; | |
| 45 | ||
| b62818e5 DM |
46 | extern int pcr_arch_init(void); |
| 47 | ||
| 3eb8057b | 48 | #endif /* __PCR_H */ |