4 files changed, 33 insertions, 14 deletions

diff --git a/include/asm-powerpc/pgtable-ppc32.h b/include/asm-powerpc/pgtable-ppc32.h
index 86a54a4a8a2a..fea2d8ff1e73 100644
--- a/include/asm-powerpc/pgtable-ppc32.h
+++ b/include/asm-powerpc/pgtable-ppc32.h
@@ -11,6 +11,11 @@
 extern unsigned long va_to_phys(unsigned long address);
 extern pte_t *va_to_pte(unsigned long address);
 extern unsigned long ioremap_bot, ioremap_base;
+
+#ifdef CONFIG_44x
+extern int icache_44x_need_flush;
+#endif
+
 #endif /* __ASSEMBLY__ */
 
 /*
@@ -562,6 +567,10 @@ static inline unsigned long pte_update(pte_t *p, unsigned long clr,
         : "=&r" (old), "=&r" (tmp), "=m" (*p)
         : "r" (p), "r" (clr), "r" (set), "m" (*p)
         : "cc" );
+#ifdef CONFIG_44x
+        if ((old & _PAGE_USER) && (old & _PAGE_HWEXEC))
+                icache_44x_need_flush = 1;
+#endif
         return old;
 }
 #else
@@ -582,6 +591,10 @@ static inline unsigned long long pte_update(pte_t *p, unsigned long clr,
         : "=&r" (old), "=&r" (tmp), "=m" (*p)
         : "r" (p), "r" ((unsigned long)(p) + 4), "r" (clr), "r" (set), "m" (*p)
         : "cc" );
+#ifdef CONFIG_44x
+        if ((old & _PAGE_USER) && (old & _PAGE_HWEXEC))
+                icache_44x_need_flush = 1;
+#endif
         return old;
 }
 #endif
diff --git a/include/asm-powerpc/systbl.h b/include/asm-powerpc/systbl.h
index cc6d87228258..11d5383b2f09 100644
--- a/include/asm-powerpc/systbl.h
+++ b/include/asm-powerpc/systbl.h
@@ -308,8 +308,8 @@ COMPAT_SYS_SPU(move_pages)
 SYSCALL_SPU(getcpu)
 COMPAT_SYS(epoll_pwait)
 COMPAT_SYS_SPU(utimensat)
-COMPAT_SYS(fallocate)
 COMPAT_SYS_SPU(signalfd)
 COMPAT_SYS_SPU(timerfd)
 SYSCALL_SPU(eventfd)
 COMPAT_SYS_SPU(sync_file_range2)
+COMPAT_SYS(fallocate)
diff --git a/include/asm-powerpc/time.h b/include/asm-powerpc/time.h
index f05895522f7f..780f82642756 100644
--- a/include/asm-powerpc/time.h
+++ b/include/asm-powerpc/time.h
@@ -176,25 +176,31 @@ static inline unsigned int get_dec(void)
 #endif
 }
 
+/*
+ * Note: Book E and 4xx processors differ from other PowerPC processors
+ * in when the decrementer generates its interrupt: on the 1 to 0
+ * transition for Book E/4xx, but on the 0 to -1 transition for others.
+ */
 static inline void set_dec(int val)
 {
 #if defined(CONFIG_40x)
         mtspr(SPRN_PIT, val);
 #elif defined(CONFIG_8xx_CPU6)
-        set_dec_cpu6(val);
+        set_dec_cpu6(val - 1);
 #else
+#ifndef CONFIG_BOOKE
+        --val;
+#endif
 #ifdef CONFIG_PPC_ISERIES
-        int cur_dec;
-
         if (firmware_has_feature(FW_FEATURE_ISERIES) &&
                         get_lppaca()->shared_proc) {
                 get_lppaca()->virtual_decr = val;
-                cur_dec = get_dec();
-                if (cur_dec > val)
+                if (get_dec() > val)
                         HvCall_setVirtualDecr();
-        } else
+                return;
+        }
 #endif
-                mtspr(SPRN_DEC, val);
+        mtspr(SPRN_DEC, val);
 #endif /* not 40x or 8xx_CPU6 */
 }
 
diff --git a/include/asm-powerpc/tlbflush.h b/include/asm-powerpc/tlbflush.h
index b6b036ccee34..e7b4c0d298ae 100644
--- a/include/asm-powerpc/tlbflush.h
+++ b/include/asm-powerpc/tlbflush.h
@@ -1,5 +1,6 @@
 #ifndef _ASM_POWERPC_TLBFLUSH_H
 #define _ASM_POWERPC_TLBFLUSH_H
+
 /*
  * TLB flushing:
  *
@@ -16,9 +17,6 @@
  */
 #ifdef __KERNEL__
 
-struct mm_struct;
-struct vm_area_struct;
-
 #if defined(CONFIG_4xx) || defined(CONFIG_8xx) || defined(CONFIG_FSL_BOOKE)
 /*
  * TLB flushing for software loaded TLB chips
@@ -28,7 +26,9 @@ struct vm_area_struct;
  * specific tlbie's
  */
 
-extern void _tlbie(unsigned long address);
+#include <linux/mm.h>
+
+extern void _tlbie(unsigned long address, unsigned int pid);
 
 #if defined(CONFIG_40x) || defined(CONFIG_8xx)
 #define _tlbia()        asm volatile ("tlbia; sync" : : : "memory")
@@ -44,13 +44,13 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 static inline void flush_tlb_page(struct vm_area_struct *vma,
                                   unsigned long vmaddr)
 {
-        _tlbie(vmaddr);
+        _tlbie(vmaddr, vma->vm_mm->context.id);
 }
 
 static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
                                          unsigned long vmaddr)
 {
-        _tlbie(vmaddr);
+        _tlbie(vmaddr, vma->vm_mm->context.id);
 }
 
 static inline void flush_tlb_range(struct vm_area_struct *vma,