MIPS: Randomize mmap if randomize_va_space is set

[sfrench/cifs-2.6.git] / arch / mips / include / asm / processor.h

diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index ab387910009a3d1fd100f79aa94560552680750a..24d91f8618f077174baa784b7ef7dc95ec0e7244 100644 (file)
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -33,6 +33,11 @@ extern void (*cpu_wait)(void);
 
 extern unsigned int vced_count, vcei_count;
 
+/*
+ * MIPS does have an arch_pick_mmap_layout()
+ */
+#define HAVE_ARCH_PICK_MMAP_LAYOUT 1
+
 /*
  * A special page (the vdso) is mapped into all processes at the very
  * top of the virtual memory space.
@@ -52,6 +57,9 @@ extern unsigned int vced_count, vcei_count;
  * space during mmap's.
  */
 #define TASK_UNMAPPED_BASE     ((TASK_SIZE / 3) & ~(PAGE_SIZE))
+
+#define TASK_IS_32BIT_ADDR 1
+
 #endif
 
 #ifdef CONFIG_64BIT
@@ -77,6 +85,9 @@ extern unsigned int vced_count, vcei_count;
                PAGE_ALIGN(TASK_SIZE32 / 3) : PAGE_ALIGN(TASK_SIZE / 3))
 #define TASK_SIZE_OF(tsk)                                              \
        (test_tsk_thread_flag(tsk, TIF_32BIT_ADDR) ? TASK_SIZE32 : TASK_SIZE)
+
+#define TASK_IS_32BIT_ADDR test_thread_flag(TIF_32BIT_ADDR)
+
 #endif
 
 #ifdef __KERNEL__
@@ -344,16 +355,10 @@ unsigned long get_wchan(struct task_struct *p);
 #ifdef CONFIG_CPU_HAS_PREFETCH
 
 #define ARCH_HAS_PREFETCH
+#define prefetch(x) __builtin_prefetch((x), 0, 1)
 
-static inline void prefetch(const void *addr)
-{
-       __asm__ __volatile__(
-       "       .set    mips4           \n"
-       "       pref    %0, (%1)        \n"
-       "       .set    mips0           \n"
-       :
-       : "i" (Pref_Load), "r" (addr));
-}
+#define ARCH_HAS_PREFETCHW
+#define prefetchw(x) __builtin_prefetch((x), 1, 1)
 
 #endif