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author | David S. Miller <davem@davemloft.net> | 2012-08-17 08:26:01 +0200 |
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committer | David S. Miller <davem@davemloft.net> | 2012-08-19 08:26:18 +0200 |
commit | 73a6b0538c131d489fe7a2581deddb72faca496b (patch) | |
tree | 3d74b564d96900134d168eff200f802970fb7d70 /arch/sparc/include/asm/pcr.h | |
parent | sparc64: Abstract away PIC register accesses. (diff) | |
download | linux-73a6b0538c131d489fe7a2581deddb72faca496b.tar.xz linux-73a6b0538c131d489fe7a2581deddb72faca496b.zip |
sparc64: Abstract away the NMI PIC counter computation.
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/include/asm/pcr.h')
-rw-r--r-- | arch/sparc/include/asm/pcr.h | 15 |
1 files changed, 1 insertions, 14 deletions
diff --git a/arch/sparc/include/asm/pcr.h b/arch/sparc/include/asm/pcr.h index d53abf75198f..4c71bec20659 100644 --- a/arch/sparc/include/asm/pcr.h +++ b/arch/sparc/include/asm/pcr.h @@ -6,6 +6,7 @@ struct pcr_ops { void (*write_pcr)(unsigned long, u64); u64 (*read_pic)(unsigned long); void (*write_pic)(unsigned long, u64); + u64 (*nmi_picl_value)(unsigned int nmi_hz); }; extern const struct pcr_ops *pcr_ops; @@ -29,20 +30,6 @@ extern void schedule_deferred_pcr_work(void); #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 accommodate 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; extern int pcr_arch_init(void); |