X-Git-Url: http://git.monstr.eu/?a=blobdiff_plain;f=include%2Fasm-ia64%2Fsystem.h;h=06253871562303b223a9cbfef4ba017ed2f44f32;hb=4c2cd96696ae0896ce4bcf725b9f0eaffafeb640;hp=33256db4a7cf1b0ad4f82cdcf935b0bd421a42ed;hpb=94f8c66e5e543d79231abf203d6e514ecb668688;p=linux-2.6-microblaze.git

diff --git a/include/asm-ia64/system.h b/include/asm-ia64/system.h
index 33256db4a7cf..062538715623 100644
--- a/include/asm-ia64/system.h
+++ b/include/asm-ia64/system.h
@@ -219,14 +219,14 @@ extern void ia64_load_extra (struct task_struct *task);
 
 #define IA64_HAS_EXTRA_STATE(t)							\
 	((t)->thread.flags & (IA64_THREAD_DBG_VALID|IA64_THREAD_PM_VALID)	\
-	 || IS_IA32_PROCESS(ia64_task_regs(t)) || PERFMON_IS_SYSWIDE())
+	 || IS_IA32_PROCESS(task_pt_regs(t)) || PERFMON_IS_SYSWIDE())
 
 #define __switch_to(prev,next,last) do {							 \
 	if (IA64_HAS_EXTRA_STATE(prev))								 \
 		ia64_save_extra(prev);								 \
 	if (IA64_HAS_EXTRA_STATE(next))								 \
 		ia64_load_extra(next);								 \
-	ia64_psr(ia64_task_regs(next))->dfh = !ia64_is_local_fpu_owner(next);			 \
+	ia64_psr(task_pt_regs(next))->dfh = !ia64_is_local_fpu_owner(next);			 \
 	(last) = ia64_switch_to((next));							 \
 } while (0)
 
@@ -238,8 +238,8 @@ extern void ia64_load_extra (struct task_struct *task);
  * the latest fph state from another CPU.  In other words: eager save, lazy restore.
  */
 # define switch_to(prev,next,last) do {						\
-	if (ia64_psr(ia64_task_regs(prev))->mfh && ia64_is_local_fpu_owner(prev)) {				\
-		ia64_psr(ia64_task_regs(prev))->mfh = 0;			\
+	if (ia64_psr(task_pt_regs(prev))->mfh && ia64_is_local_fpu_owner(prev)) {				\
+		ia64_psr(task_pt_regs(prev))->mfh = 0;			\
 		(prev)->thread.flags |= IA64_THREAD_FPH_VALID;			\
 		__ia64_save_fpu((prev)->thread.fph);				\
 	}									\
@@ -249,35 +249,12 @@ extern void ia64_load_extra (struct task_struct *task);
 # define switch_to(prev,next,last)	__switch_to(prev, next, last)
 #endif
 
-/*
- * On IA-64, we don't want to hold the runqueue's lock during the low-level context-switch,
- * because that could cause a deadlock.  Here is an example by Erich Focht:
- *
- * Example:
- * CPU#0:
- * schedule()
- *    -> spin_lock_irq(&rq->lock)
- *    -> context_switch()
- *       -> wrap_mmu_context()
- *          -> read_lock(&tasklist_lock)
- *
- * CPU#1:
- * sys_wait4() or release_task() or forget_original_parent()
- *    -> write_lock(&tasklist_lock)
- *    -> do_notify_parent()
- *       -> wake_up_parent()
- *          -> try_to_wake_up()
- *             -> spin_lock_irq(&parent_rq->lock)
- *
- * If the parent's rq happens to be on CPU#0, we'll wait for the rq->lock
- * of that CPU which will not be released, because there we wait for the
- * tasklist_lock to become available.
- */
 #define __ARCH_WANT_UNLOCKED_CTXSW
-
+#define ARCH_HAS_PREFETCH_SWITCH_STACK
 #define ia64_platform_is(x) (strcmp(x, platform_name) == 0)
 
 void cpu_idle_wait(void);
+void sched_cacheflush(void);
 
 #define arch_align_stack(x) (x)