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Commit 8234b65a authored by Linus Torvalds's avatar Linus Torvalds
Browse files
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6:
  [SPARC64]: Fix build with SPARSEMEM_VMEMMAP disabled.
  [SPARC]: Make gettimeofday() monotonic again.
parents 612166c7 bf4a7972
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+8 −1
Original line number Diff line number Diff line
@@ -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.
+5 −1
Original line number Diff line number Diff line
/* 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)