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-rw-r--r--include/asm-frv/atomic.h91
-rw-r--r--include/asm-frv/kdebug.h1
-rw-r--r--include/asm-frv/pgtable.h4
-rw-r--r--include/asm-frv/semaphore.h14
-rw-r--r--include/asm-frv/system.h70
5 files changed, 91 insertions, 89 deletions
diff --git a/include/asm-frv/atomic.h b/include/asm-frv/atomic.h
index 066386ac238..d425d8d0ad7 100644
--- a/include/asm-frv/atomic.h
+++ b/include/asm-frv/atomic.h
@@ -16,6 +16,7 @@
#include <linux/types.h>
#include <asm/spr-regs.h>
+#include <asm/system.h>
#ifdef CONFIG_SMP
#error not SMP safe
@@ -258,85 +259,23 @@ extern uint32_t __xchg_32(uint32_t i, volatile void *v);
#define tas(ptr) (xchg((ptr), 1))
-/*****************************************************************************/
-/*
- * compare and conditionally exchange value with memory
- * - if (*ptr == test) then orig = *ptr; *ptr = test;
- * - if (*ptr != test) then orig = *ptr;
- */
-#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
-
-#define cmpxchg(ptr, test, new) \
-({ \
- __typeof__(ptr) __xg_ptr = (ptr); \
- __typeof__(*(ptr)) __xg_orig, __xg_tmp; \
- __typeof__(*(ptr)) __xg_test = (test); \
- __typeof__(*(ptr)) __xg_new = (new); \
- \
- switch (sizeof(__xg_orig)) { \
- case 4: \
- asm volatile( \
- "0: \n" \
- " orcc gr0,gr0,gr0,icc3 \n" \
- " ckeq icc3,cc7 \n" \
- " ld.p %M0,%1 \n" \
- " orcr cc7,cc7,cc3 \n" \
- " sub%I4cc %1,%4,%2,icc0 \n" \
- " bne icc0,#0,1f \n" \
- " cst.p %3,%M0 ,cc3,#1 \n" \
- " corcc gr29,gr29,gr0 ,cc3,#1 \n" \
- " beq icc3,#0,0b \n" \
- "1: \n" \
- : "+U"(*__xg_ptr), "=&r"(__xg_orig), "=&r"(__xg_tmp) \
- : "r"(__xg_new), "NPr"(__xg_test) \
- : "memory", "cc7", "cc3", "icc3", "icc0" \
- ); \
- break; \
- \
- default: \
- __xg_orig = 0; \
- asm volatile("break"); \
- break; \
- } \
- \
- __xg_orig; \
-})
-
-#else
-
-extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new);
-
-#define cmpxchg(ptr, test, new) \
-({ \
- __typeof__(ptr) __xg_ptr = (ptr); \
- __typeof__(*(ptr)) __xg_orig; \
- __typeof__(*(ptr)) __xg_test = (test); \
- __typeof__(*(ptr)) __xg_new = (new); \
- \
- switch (sizeof(__xg_orig)) { \
- case 4: __xg_orig = __cmpxchg_32(__xg_ptr, __xg_test, __xg_new); break; \
- default: \
- __xg_orig = 0; \
- asm volatile("break"); \
- break; \
- } \
- \
- __xg_orig; \
-})
-
-#endif
-
#define atomic_cmpxchg(v, old, new) (cmpxchg(&((v)->counter), old, new))
#define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-#define atomic_add_unless(v, a, u) \
-({ \
- int c, old; \
- c = atomic_read(v); \
- while (c != (u) && (old = atomic_cmpxchg((v), c, c + (a))) != c) \
- c = old; \
- c != (u); \
-})
+static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
+{
+ int c, old;
+ c = atomic_read(v);
+ for (;;) {
+ if (unlikely(c == (u)))
+ break;
+ old = atomic_cmpxchg((v), c, c + (a));
+ if (likely(old == c))
+ break;
+ c = old;
+ }
+ return c != (u);
+}
#define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
diff --git a/include/asm-frv/kdebug.h b/include/asm-frv/kdebug.h
new file mode 100644
index 00000000000..6ece1b03766
--- /dev/null
+++ b/include/asm-frv/kdebug.h
@@ -0,0 +1 @@
+#include <asm-generic/kdebug.h>
diff --git a/include/asm-frv/pgtable.h b/include/asm-frv/pgtable.h
index 8a05aa16861..2687c771512 100644
--- a/include/asm-frv/pgtable.h
+++ b/include/asm-frv/pgtable.h
@@ -509,10 +509,6 @@ static inline int pte_file(pte_t pte)
#define io_remap_pfn_range(vma, vaddr, pfn, size, prot) \
remap_pfn_range(vma, vaddr, pfn, size, prot)
-#define MK_IOSPACE_PFN(space, pfn) (pfn)
-#define GET_IOSPACE(pfn) 0
-#define GET_PFN(pfn) (pfn)
-
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
#define __HAVE_ARCH_PTEP_TEST_AND_CLEAR_DIRTY
#define __HAVE_ARCH_PTEP_GET_AND_CLEAR
diff --git a/include/asm-frv/semaphore.h b/include/asm-frv/semaphore.h
index 907c5c3643c..09586528e00 100644
--- a/include/asm-frv/semaphore.h
+++ b/include/asm-frv/semaphore.h
@@ -20,8 +20,6 @@
#include <linux/spinlock.h>
#include <linux/rwsem.h>
-#define SEMAPHORE_DEBUG 0
-
/*
* the semaphore definition
* - if counter is >0 then there are tokens available on the semaphore for down to collect
@@ -32,12 +30,12 @@ struct semaphore {
unsigned counter;
spinlock_t wait_lock;
struct list_head wait_list;
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
unsigned __magic;
#endif
};
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
# define __SEM_DEBUG_INIT(name) , (long)&(name).__magic
#else
# define __SEM_DEBUG_INIT(name)
@@ -76,7 +74,7 @@ static inline void down(struct semaphore *sem)
{
unsigned long flags;
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
CHECK_MAGIC(sem->__magic);
#endif
@@ -95,7 +93,7 @@ static inline int down_interruptible(struct semaphore *sem)
unsigned long flags;
int ret = 0;
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
CHECK_MAGIC(sem->__magic);
#endif
@@ -119,7 +117,7 @@ static inline int down_trylock(struct semaphore *sem)
unsigned long flags;
int success = 0;
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
CHECK_MAGIC(sem->__magic);
#endif
@@ -136,7 +134,7 @@ static inline void up(struct semaphore *sem)
{
unsigned long flags;
-#if SEMAPHORE_DEBUG
+#ifdef CONFIG_DEBUG_SEMAPHORE
CHECK_MAGIC(sem->__magic);
#endif
diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h
index 1166899317d..be303b3eef4 100644
--- a/include/asm-frv/system.h
+++ b/include/asm-frv/system.h
@@ -13,7 +13,6 @@
#define _ASM_SYSTEM_H
#include <linux/linkage.h>
-#include <asm/atomic.h>
struct thread_struct;
@@ -197,4 +196,73 @@ extern void free_initmem(void);
#define arch_align_stack(x) (x)
+/*****************************************************************************/
+/*
+ * compare and conditionally exchange value with memory
+ * - if (*ptr == test) then orig = *ptr; *ptr = test;
+ * - if (*ptr != test) then orig = *ptr;
+ */
+#ifndef CONFIG_FRV_OUTOFLINE_ATOMIC_OPS
+
+#define cmpxchg(ptr, test, new) \
+({ \
+ __typeof__(ptr) __xg_ptr = (ptr); \
+ __typeof__(*(ptr)) __xg_orig, __xg_tmp; \
+ __typeof__(*(ptr)) __xg_test = (test); \
+ __typeof__(*(ptr)) __xg_new = (new); \
+ \
+ switch (sizeof(__xg_orig)) { \
+ case 4: \
+ asm volatile( \
+ "0: \n" \
+ " orcc gr0,gr0,gr0,icc3 \n" \
+ " ckeq icc3,cc7 \n" \
+ " ld.p %M0,%1 \n" \
+ " orcr cc7,cc7,cc3 \n" \
+ " sub%I4cc %1,%4,%2,icc0 \n" \
+ " bne icc0,#0,1f \n" \
+ " cst.p %3,%M0 ,cc3,#1 \n" \
+ " corcc gr29,gr29,gr0 ,cc3,#1 \n" \
+ " beq icc3,#0,0b \n" \
+ "1: \n" \
+ : "+U"(*__xg_ptr), "=&r"(__xg_orig), "=&r"(__xg_tmp) \
+ : "r"(__xg_new), "NPr"(__xg_test) \
+ : "memory", "cc7", "cc3", "icc3", "icc0" \
+ ); \
+ break; \
+ \
+ default: \
+ __xg_orig = 0; \
+ asm volatile("break"); \
+ break; \
+ } \
+ \
+ __xg_orig; \
+})
+
+#else
+
+extern uint32_t __cmpxchg_32(uint32_t *v, uint32_t test, uint32_t new);
+
+#define cmpxchg(ptr, test, new) \
+({ \
+ __typeof__(ptr) __xg_ptr = (ptr); \
+ __typeof__(*(ptr)) __xg_orig; \
+ __typeof__(*(ptr)) __xg_test = (test); \
+ __typeof__(*(ptr)) __xg_new = (new); \
+ \
+ switch (sizeof(__xg_orig)) { \
+ case 4: __xg_orig = __cmpxchg_32(__xg_ptr, __xg_test, __xg_new); break; \
+ default: \
+ __xg_orig = 0; \
+ asm volatile("break"); \
+ break; \
+ } \
+ \
+ __xg_orig; \
+})
+
+#endif
+
+
#endif /* _ASM_SYSTEM_H */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-25 20:01:03 +0000