[PATCH] remove set_wmb - arch removal

[linux-2.6-block.git] / include / asm-sparc64 / system.h

diff --git a/include/asm-sparc64/system.h b/include/asm-sparc64/system.h
index b5417529f6f173dac37d17e900411d9c68ea7929..a8b7432c9a70825f3b7d0c6e3b02f3772c24673c 100644 (file)
--- a/include/asm-sparc64/system.h
+++ b/include/asm-sparc64/system.h
@@ -2,7 +2,6 @@
 #ifndef __SPARC64_SYSTEM_H
 #define __SPARC64_SYSTEM_H
 
-#include <linux/config.h>
 #include <asm/ptrace.h>
 #include <asm/processor.h>
 #include <asm/visasm.h>
@@ -124,8 +123,6 @@ do {        __asm__ __volatile__("ba,pt     %%xcc, 1f\n\t" \
 #define read_barrier_depends()         do { } while(0)
 #define set_mb(__var, __value) \
        do { __var = __value; membar_storeload_storestore(); } while(0)
-#define set_wmb(__var, __value) \
-       do { __var = __value; wmb(); } while(0)
 
 #ifdef CONFIG_SMP
 #define smp_mb()       mb()
@@ -193,11 +190,7 @@ do {                                               \
         * not preserve it's value.  Hairy, but it lets us remove 2 loads
         * and 2 stores in this critical code path.  -DaveM
         */
-#if __GNUC__ >= 3
 #define EXTRA_CLOBBER ,"%l1"
-#else
-#define EXTRA_CLOBBER
-#endif
 #define switch_to(prev, next, last)                                    \
 do {   if (test_thread_flag(TIF_PERFCTR)) {                            \
                unsigned long __tmp;                                    \
@@ -212,10 +205,11 @@ do {      if (test_thread_flag(TIF_PERFCTR)) {                            \
        /* If you are tempted to conditionalize the following */        \
        /* so that ASI is only written if it changes, think again. */   \
        __asm__ __volatile__("wr %%g0, %0, %%asi"                       \
-       : : "r" (__thread_flag_byte_ptr(next->thread_info)[TI_FLAG_BYTE_CURRENT_DS]));\
+       : : "r" (__thread_flag_byte_ptr(task_thread_info(next))[TI_FLAG_BYTE_CURRENT_DS]));\
+       trap_block[current_thread_info()->cpu].thread =                 \
+               task_thread_info(next);                                 \
        __asm__ __volatile__(                                           \
        "mov    %%g4, %%g7\n\t"                                         \
-       "wrpr   %%g0, 0x95, %%pstate\n\t"                               \
        "stx    %%i6, [%%sp + 2047 + 0x70]\n\t"                         \
        "stx    %%i7, [%%sp + 2047 + 0x78]\n\t"                         \
        "rdpr   %%wstate, %%o5\n\t"                                     \
@@ -229,20 +223,16 @@ do {      if (test_thread_flag(TIF_PERFCTR)) {                            \
        "ldx    [%%g6 + %3], %%o6\n\t"                                  \
        "ldub   [%%g6 + %2], %%o5\n\t"                                  \
        "ldub   [%%g6 + %4], %%o7\n\t"                                  \
-       "mov    %%g6, %%l2\n\t"                                         \
        "wrpr   %%o5, 0x0, %%wstate\n\t"                                \
        "ldx    [%%sp + 2047 + 0x70], %%i6\n\t"                         \
        "ldx    [%%sp + 2047 + 0x78], %%i7\n\t"                         \
-       "wrpr   %%g0, 0x94, %%pstate\n\t"                               \
-       "mov    %%l2, %%g6\n\t"                                         \
        "ldx    [%%g6 + %6], %%g4\n\t"                                  \
-       "wrpr   %%g0, 0x96, %%pstate\n\t"                               \
        "brz,pt %%o7, 1f\n\t"                                           \
        " mov   %%g7, %0\n\t"                                           \
        "b,a ret_from_syscall\n\t"                                      \
        "1:\n\t"                                                        \
        : "=&r" (last)                                                  \
-       : "0" (next->thread_info),                                      \
+       : "0" (task_thread_info(next)),                                 \
          "i" (TI_WSTATE), "i" (TI_KSP), "i" (TI_NEW_CHILD),            \
          "i" (TI_CWP), "i" (TI_TASK)                                   \
        : "cc",                                                         \
@@ -257,6 +247,16 @@ do {       if (test_thread_flag(TIF_PERFCTR)) {                            \
        }                                                               \
 } while(0)
 
+/*
+ * On SMP systems, when the scheduler does migration-cost autodetection,
+ * it needs a way to flush as much of the CPU's caches as possible.
+ *
+ * TODO: fill this in!
+ */
+static inline void sched_cacheflush(void)
+{
+}
+
 static inline unsigned long xchg32(__volatile__ unsigned int *m, unsigned int val)
 {
        unsigned long tmp1, tmp2;