diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/sparc/kernel/time.c | 9 | ||||
| -rw-r--r-- | arch/sparc64/kernel/ktlb.S | 6 |
2 files changed, 13 insertions, 2 deletions
diff --git a/arch/sparc/kernel/time.c b/arch/sparc/kernel/time.c index 45cb7c5286d7..00b393c3a4a0 100644 --- a/arch/sparc/kernel/time.c +++ b/arch/sparc/kernel/time.c @@ -436,7 +436,14 @@ void __init time_init(void) static inline unsigned long do_gettimeoffset(void) { - return (*master_l10_counter >> 10) & 0x1fffff; + unsigned long val = *master_l10_counter; + unsigned long usec = (val >> 10) & 0x1fffff; + + /* Limit hit? */ + if (val & 0x80000000) + usec += 1000000 / HZ; + + return usec; } /* Ok, my cute asm atomicity trick doesn't work anymore. diff --git a/arch/sparc64/kernel/ktlb.S b/arch/sparc64/kernel/ktlb.S index 964527d2ffa0..cef8defcd7a9 100644 --- a/arch/sparc64/kernel/ktlb.S +++ b/arch/sparc64/kernel/ktlb.S @@ -1,6 +1,6 @@ /* arch/sparc64/kernel/ktlb.S: Kernel mapping TLB miss handling. * - * Copyright (C) 1995, 1997, 2005 David S. Miller <davem@davemloft.net> + * Copyright (C) 1995, 1997, 2005, 2008 David S. Miller <davem@davemloft.net> * Copyright (C) 1996 Eddie C. Dost (ecd@brainaid.de) * Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx) * Copyright (C) 1996,98,99 Jakub Jelinek (jj@sunsite.mff.cuni.cz) @@ -226,6 +226,7 @@ kvmap_dtlb_load: ba,pt %xcc, sun4v_dtlb_load mov %g5, %g3 +#ifdef CONFIG_SPARSEMEM_VMEMMAP kvmap_vmemmap: sub %g4, %g5, %g5 srlx %g5, 22, %g5 @@ -234,6 +235,7 @@ kvmap_vmemmap: or %g1, %lo(vmemmap_table), %g1 ba,pt %xcc, kvmap_dtlb_load ldx [%g1 + %g5], %g5 +#endif kvmap_dtlb_nonlinear: /* Catch kernel NULL pointer derefs. */ @@ -242,12 +244,14 @@ kvmap_dtlb_nonlinear: bleu,pn %xcc, kvmap_dtlb_longpath nop +#ifdef CONFIG_SPARSEMEM_VMEMMAP /* Do not use the TSB for vmemmap. */ mov (VMEMMAP_BASE >> 24), %g5 sllx %g5, 24, %g5 cmp %g4,%g5 bgeu,pn %xcc, kvmap_vmemmap nop +#endif KERN_TSB_LOOKUP_TL1(%g4, %g6, %g5, %g1, %g2, %g3, kvmap_dtlb_load) |