[SPARC64]: Elminate all usage of hard-coded trap globals.

[firefly-linux-kernel-4.4.55.git] / include / asm-sparc64 / system.h

diff --git a/include/asm-sparc64/system.h b/include/asm-sparc64/system.h
index 309f1466b6fa1125edd34f933aa56ab645dc76b0..26c0807af3e4c8b2dcad873f141f9d7dd5cb9224 100644 (file)
--- a/include/asm-sparc64/system.h
+++ b/include/asm-sparc64/system.h
@@ -208,7 +208,9 @@ 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"                               \
@@ -238,7 +240,7 @@ do {        if (test_thread_flag(TIF_PERFCTR)) {                            \
        "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",                                                         \
@@ -253,6 +255,16 @@ 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;