Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6

* 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.
mthuurne · Jan 15, 2008 · 8234b65 · 8234b65
2 parents 612166c + bf4a797
commit 8234b65
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Showing 2 changed files with 13 additions and 2 deletions.
diff --git 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
@@ -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)