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-rw-r--r--include/asm-cris/arch-v10/atomic.h7
-rw-r--r--include/asm-cris/atomic.h66
-rw-r--r--include/asm-cris/mmu_context.h2
-rw-r--r--include/asm-cris/semaphore.h21
-rw-r--r--include/asm-cris/smp.h7
-rw-r--r--include/asm-cris/spinlock.h1
-rw-r--r--include/asm-cris/tlbflush.h19
7 files changed, 65 insertions, 58 deletions
diff --git a/include/asm-cris/arch-v10/atomic.h b/include/asm-cris/arch-v10/atomic.h
new file mode 100644
index 00000000000..6ef5e7d0902
--- /dev/null
+++ b/include/asm-cris/arch-v10/atomic.h
@@ -0,0 +1,7 @@
+#ifndef __ASM_CRIS_ARCH_ATOMIC__
+#define __ASM_CRIS_ARCH_ATOMIC__
+
+#define cris_atomic_save(addr, flags) local_irq_save(flags);
+#define cris_atomic_restore(addr, flags) local_irq_restore(flags);
+
+#endif
diff --git a/include/asm-cris/atomic.h b/include/asm-cris/atomic.h
index b3dfea5a71e..70605b09e8b 100644
--- a/include/asm-cris/atomic.h
+++ b/include/asm-cris/atomic.h
@@ -4,21 +4,14 @@
#define __ASM_CRIS_ATOMIC__
#include <asm/system.h>
+#include <asm/arch/atomic.h>
/*
* Atomic operations that C can't guarantee us. Useful for
* resource counting etc..
*/
-/*
- * Make sure gcc doesn't try to be clever and move things around
- * on us. We need to use _exactly_ the address the user gave us,
- * not some alias that contains the same information.
- */
-
-#define __atomic_fool_gcc(x) (*(struct { int a[100]; } *)x)
-
-typedef struct { int counter; } atomic_t;
+typedef struct { volatile int counter; } atomic_t;
#define ATOMIC_INIT(i) { (i) }
@@ -30,29 +23,26 @@ typedef struct { int counter; } atomic_t;
extern __inline__ void atomic_add(int i, volatile atomic_t *v)
{
unsigned long flags;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
v->counter += i;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
}
extern __inline__ void atomic_sub(int i, volatile atomic_t *v)
{
unsigned long flags;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
v->counter -= i;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
}
extern __inline__ int atomic_add_return(int i, volatile atomic_t *v)
{
unsigned long flags;
int retval;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
retval = (v->counter += i);
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
return retval;
}
@@ -62,10 +52,9 @@ extern __inline__ int atomic_sub_return(int i, volatile atomic_t *v)
{
unsigned long flags;
int retval;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
retval = (v->counter -= i);
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
return retval;
}
@@ -73,39 +62,35 @@ extern __inline__ int atomic_sub_and_test(int i, volatile atomic_t *v)
{
int retval;
unsigned long flags;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
retval = (v->counter -= i) == 0;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
return retval;
}
extern __inline__ void atomic_inc(volatile atomic_t *v)
{
unsigned long flags;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
(v->counter)++;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
}
extern __inline__ void atomic_dec(volatile atomic_t *v)
{
unsigned long flags;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
(v->counter)--;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
}
extern __inline__ int atomic_inc_return(volatile atomic_t *v)
{
unsigned long flags;
int retval;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
retval = (v->counter)++;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
return retval;
}
@@ -113,20 +98,18 @@ extern __inline__ int atomic_dec_return(volatile atomic_t *v)
{
unsigned long flags;
int retval;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
retval = (v->counter)--;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
return retval;
}
extern __inline__ int atomic_dec_and_test(volatile atomic_t *v)
{
int retval;
unsigned long flags;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
retval = --(v->counter) == 0;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
return retval;
}
@@ -134,10 +117,9 @@ extern __inline__ int atomic_inc_and_test(volatile atomic_t *v)
{
int retval;
unsigned long flags;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(v, flags);
retval = ++(v->counter) == 0;
- local_irq_restore(flags);
+ cris_atomic_restore(v, flags);
return retval;
}
diff --git a/include/asm-cris/mmu_context.h b/include/asm-cris/mmu_context.h
index f9308c5bbd9..e6e659dc757 100644
--- a/include/asm-cris/mmu_context.h
+++ b/include/asm-cris/mmu_context.h
@@ -15,7 +15,7 @@ extern void switch_mm(struct mm_struct *prev, struct mm_struct *next,
* registers like cr3 on the i386
*/
-extern volatile pgd_t *current_pgd; /* defined in arch/cris/mm/fault.c */
+extern volatile DEFINE_PER_CPU(pgd_t *,current_pgd); /* defined in arch/cris/mm/fault.c */
static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk)
{
diff --git a/include/asm-cris/semaphore.h b/include/asm-cris/semaphore.h
index 605aa7eaaaf..8ed7636ab31 100644
--- a/include/asm-cris/semaphore.h
+++ b/include/asm-cris/semaphore.h
@@ -72,10 +72,9 @@ extern inline void down(struct semaphore * sem)
might_sleep();
/* atomically decrement the semaphores count, and if its negative, we wait */
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(sem, flags);
failed = --(sem->count.counter) < 0;
- local_irq_restore(flags);
+ cris_atomic_restore(sem, flags);
if(failed) {
__down(sem);
}
@@ -95,10 +94,9 @@ extern inline int down_interruptible(struct semaphore * sem)
might_sleep();
/* atomically decrement the semaphores count, and if its negative, we wait */
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(sem, flags);
failed = --(sem->count.counter) < 0;
- local_irq_restore(flags);
+ cris_atomic_restore(sem, flags);
if(failed)
failed = __down_interruptible(sem);
return(failed);
@@ -109,13 +107,13 @@ extern inline int down_trylock(struct semaphore * sem)
unsigned long flags;
int failed;
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(sem, flags);
failed = --(sem->count.counter) < 0;
- local_irq_restore(flags);
+ cris_atomic_restore(sem, flags);
if(failed)
failed = __down_trylock(sem);
return(failed);
+
}
/*
@@ -130,10 +128,9 @@ extern inline void up(struct semaphore * sem)
int wakeup;
/* atomically increment the semaphores count, and if it was negative, we wake people */
- local_save_flags(flags);
- local_irq_disable();
+ cris_atomic_save(sem, flags);
wakeup = ++(sem->count.counter) <= 0;
- local_irq_restore(flags);
+ cris_atomic_restore(sem, flags);
if(wakeup) {
__up(sem);
}
diff --git a/include/asm-cris/smp.h b/include/asm-cris/smp.h
index c2f4feaa041..dca5ef1d8c9 100644
--- a/include/asm-cris/smp.h
+++ b/include/asm-cris/smp.h
@@ -1,4 +1,11 @@
#ifndef __ASM_SMP_H
#define __ASM_SMP_H
+#include <linux/cpumask.h>
+
+extern cpumask_t phys_cpu_present_map;
+#define cpu_possible_map phys_cpu_present_map
+
+#define __smp_processor_id() (current_thread_info()->cpu)
+
#endif
diff --git a/include/asm-cris/spinlock.h b/include/asm-cris/spinlock.h
new file mode 100644
index 00000000000..2e8ba8afc7a
--- /dev/null
+++ b/include/asm-cris/spinlock.h
@@ -0,0 +1 @@
+#include <asm/arch/spinlock.h>
diff --git a/include/asm-cris/tlbflush.h b/include/asm-cris/tlbflush.h
index 1781fe1a32f..6ed7d9ae90d 100644
--- a/include/asm-cris/tlbflush.h
+++ b/include/asm-cris/tlbflush.h
@@ -18,13 +18,26 @@
*
*/
+extern void __flush_tlb_all(void);
+extern void __flush_tlb_mm(struct mm_struct *mm);
+extern void __flush_tlb_page(struct vm_area_struct *vma,
+ unsigned long addr);
+
+#ifdef CONFIG_SMP
extern void flush_tlb_all(void);
extern void flush_tlb_mm(struct mm_struct *mm);
extern void flush_tlb_page(struct vm_area_struct *vma,
unsigned long addr);
-extern void flush_tlb_range(struct vm_area_struct *vma,
- unsigned long start,
- unsigned long end);
+#else
+#define flush_tlb_all __flush_tlb_all
+#define flush_tlb_mm __flush_tlb_mm
+#define flush_tlb_page __flush_tlb_page
+#endif
+
+static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
+{
+ flush_tlb_mm(vma->vm_mm);
+}
extern inline void flush_tlb_pgtables(struct mm_struct *mm,
unsigned long start, unsigned long end)
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-24 12:52:32 +0000