Merge with /pub/scm/linux/kernel/git/torvalds/linux-2.6.git

Signed-off-by: Steve French <sfrench@us.ibm.com>

8 files changed, 122 insertions, 19 deletions

diff --git a/include/asm-frv/atomic.h b/include/asm-frv/atomic.h
index a59f684b4f33..5d9f84bfdcad 100644
--- a/include/asm-frv/atomic.h
+++ b/include/asm-frv/atomic.h
@@ -220,9 +220,9 @@ extern unsigned long atomic_test_and_XOR_mask(unsigned long mask, volatile unsig
 	switch (sizeof(__xg_orig)) {						\
 	case 4:									\
 		asm volatile(							\
-			"swap%I0 %2,%M0"					\
-			: "+m"(*__xg_ptr), "=&r"(__xg_orig)			\
-			: "r"(x)						\
+			"swap%I0 %M0,%1"					\
+			: "+m"(*__xg_ptr), "=r"(__xg_orig)			\
+			: "1"(x)						\
 			: "memory"						\
 			);							\
 		break;								\
diff --git a/include/asm-frv/cacheflush.h b/include/asm-frv/cacheflush.h
index 3007deccb490..eaa5826bc1c8 100644
--- a/include/asm-frv/cacheflush.h
+++ b/include/asm-frv/cacheflush.h
@@ -87,5 +87,17 @@ static inline void flush_icache_page(struct vm_area_struct *vma, struct page *pa
 	flush_icache_user_range(vma, page, page_to_phys(page), PAGE_SIZE);
 }
 
+/*
+ * permit ptrace to access another process's address space through the icache
+ * and the dcache
+ */
+#define copy_to_user_page(vma, page, vaddr, dst, src, len)	\
+do {								\
+	memcpy((dst), (src), (len));				\
+	flush_icache_user_range((vma), (page), (vaddr), (len));	\
+} while(0)
+
+#define copy_from_user_page(vma, page, vaddr, dst, src, len)	\
+	memcpy((dst), (src), (len))
 
 #endif /* _ASM_CACHEFLUSH_H */
diff --git a/include/asm-frv/io.h b/include/asm-frv/io.h
index 075369b1a34b..01247cb2bc39 100644
--- a/include/asm-frv/io.h
+++ b/include/asm-frv/io.h
@@ -251,7 +251,6 @@ static inline void writel(uint32_t datum, volatile void __iomem *addr)
 #define IOMAP_WRITETHROUGH		3
 
 extern void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cacheflag);
-extern void __iounmap(void __iomem *addr, unsigned long size);
 
 static inline void __iomem *ioremap(unsigned long physaddr, unsigned long size)
 {
diff --git a/include/asm-frv/mman.h b/include/asm-frv/mman.h
index 8af4a41c255e..d3bca306da82 100644
--- a/include/asm-frv/mman.h
+++ b/include/asm-frv/mman.h
@@ -36,6 +36,8 @@
 #define MADV_WILLNEED	0x3		/* pre-fault pages */
 #define MADV_DONTNEED	0x4		/* discard these pages */
 #define MADV_REMOVE	0x5		/* remove these pages & resources */
+#define MADV_DONTFORK	0x30		/* dont inherit across fork */
+#define MADV_DOFORK	0x31		/* do inherit across fork */
 
 /* compatibility flags */
 #define MAP_ANON	MAP_ANONYMOUS
diff --git a/include/asm-frv/spr-regs.h b/include/asm-frv/spr-regs.h
index ef472f058d9c..c2a541ef828d 100644
--- a/include/asm-frv/spr-regs.h
+++ b/include/asm-frv/spr-regs.h
@@ -98,6 +98,7 @@
 #define TBR_TT_TRAP0		(0x80 << 4)
 #define TBR_TT_TRAP1		(0x81 << 4)
 #define TBR_TT_TRAP2		(0x82 << 4)
+#define TBR_TT_TRAP3		(0x83 << 4)
 #define TBR_TT_TRAP126		(0xfe << 4)
 #define TBR_TT_BREAK		(0xff << 4)
 
diff --git a/include/asm-frv/system.h b/include/asm-frv/system.h
index d2aea70a5f64..f72ff0c4dc0b 100644
--- a/include/asm-frv/system.h
+++ b/include/asm-frv/system.h
@@ -40,8 +40,84 @@ do {									\
 
 /*
  * interrupt flag manipulation
+ * - use virtual interrupt management since touching the PSR is slow
+ *   - ICC2.Z: T if interrupts virtually disabled
+ *   - ICC2.C: F if interrupts really disabled
+ * - if Z==1 upon interrupt:
+ *   - C is set to 0
+ *   - interrupts are really disabled
+ *   - entry.S returns immediately
+ * - uses TIHI (TRAP if Z==0 && C==0) #2 to really reenable interrupts
+ *   - if taken, the trap:
+ *     - sets ICC2.C
+ *     - enables interrupts
  */
-#define local_irq_disable()				\
+#define local_irq_disable()					\
+do {								\
+	/* set Z flag, but don't change the C flag */		\
+	asm volatile("	andcc	gr0,gr0,gr0,icc2	\n"	\
+		     :						\
+		     :						\
+		     : "memory", "icc2"				\
+		     );						\
+} while(0)
+
+#define local_irq_enable()					\
+do {								\
+	/* clear Z flag and then test the C flag */		\
+	asm volatile("  oricc	gr0,#1,gr0,icc2		\n"	\
+		     "	tihi	icc2,gr0,#2		\n"	\
+		     :						\
+		     :						\
+		     : "memory", "icc2"				\
+		     );						\
+} while(0)
+
+#define local_save_flags(flags)					\
+do {								\
+	typecheck(unsigned long, flags);			\
+	asm volatile("movsg ccr,%0"				\
+		     : "=r"(flags)				\
+		     :						\
+		     : "memory");				\
+								\
+	/* shift ICC2.Z to bit 0 */				\
+	flags >>= 26;						\
+								\
+	/* make flags 1 if interrupts disabled, 0 otherwise */	\
+	flags &= 1UL;						\
+} while(0)
+
+#define irqs_disabled() \
+	({unsigned long flags; local_save_flags(flags); flags; })
+
+#define	local_irq_save(flags)			\
+do {						\
+	typecheck(unsigned long, flags);	\
+	local_save_flags(flags);		\
+	local_irq_disable();			\
+} while(0)
+
+#define	local_irq_restore(flags)					\
+do {									\
+	typecheck(unsigned long, flags);				\
+									\
+	/* load the Z flag by turning 1 if disabled into 0 if disabled	\
+	 * and thus setting the Z flag but not the C flag */		\
+	asm volatile("  xoricc	%0,#1,gr0,icc2		\n"		\
+		     /* then test Z=0 and C=0 */			\
+		     "	tihi	icc2,gr0,#2		\n"		\
+		     :							\
+		     : "r"(flags)					\
+		     : "memory", "icc2"					\
+		     );							\
+									\
+} while(0)
+
+/*
+ * real interrupt flag manipulation
+ */
+#define __local_irq_disable()				\
 do {							\
 	unsigned long psr;				\
 	asm volatile("	movsg	psr,%0		\n"	\
@@ -53,7 +129,7 @@ do {							\
 		     : "memory");			\
 } while(0)
 
-#define local_irq_enable()				\
+#define __local_irq_enable()				\
 do {							\
 	unsigned long psr;				\
 	asm volatile("	movsg	psr,%0		\n"	\
@@ -64,7 +140,7 @@ do {							\
 		     : "memory");			\
 } while(0)
 
-#define local_save_flags(flags)			\
+#define __local_save_flags(flags)		\
 do {						\
 	typecheck(unsigned long, flags);	\
 	asm("movsg psr,%0"			\
@@ -73,7 +149,7 @@ do {						\
 	    : "memory");			\
 } while(0)
 
-#define	local_irq_save(flags)				\
+#define	__local_irq_save(flags)				\
 do {							\
 	unsigned long npsr;				\
 	typecheck(unsigned long, flags);		\
@@ -86,7 +162,7 @@ do {							\
 		     : "memory");			\
 } while(0)
 
-#define	local_irq_restore(flags)			\
+#define	__local_irq_restore(flags)			\
 do {							\
 	typecheck(unsigned long, flags);		\
 	asm volatile("	movgs	%0,psr		\n"	\
@@ -95,7 +171,7 @@ do {							\
 		     : "memory");			\
 } while(0)
 
-#define irqs_disabled() \
+#define __irqs_disabled() \
 	((__get_PSR() & PSR_PIL) >= PSR_PIL_14)
 
 /*
diff --git a/include/asm-frv/uaccess.h b/include/asm-frv/uaccess.h
index b6bcbe01f6ee..a1d140438863 100644
--- a/include/asm-frv/uaccess.h
+++ b/include/asm-frv/uaccess.h
@@ -306,7 +306,4 @@ extern long strnlen_user(const char *src, long count);
 
 extern unsigned long search_exception_table(unsigned long addr);
 
-#define copy_to_user_page(vma, page, vaddr, dst, src, len)	memcpy(dst, src, len)
-#define copy_from_user_page(vma, page, vaddr, dst, src, len)	memcpy(dst, src, len)
-
 #endif /* _ASM_UACCESS_H */
diff --git a/include/asm-frv/unistd.h b/include/asm-frv/unistd.h
index 4d994d2e99e3..322531caa484 100644
--- a/include/asm-frv/unistd.h
+++ b/include/asm-frv/unistd.h
@@ -295,13 +295,29 @@
 #define __NR_add_key		286
 #define __NR_request_key	287
 #define __NR_keyctl		288
-#define __NR_vperfctr_open	289
-#define __NR_vperfctr_control	(__NR_perfctr_info+1)
-#define __NR_vperfctr_unlink	(__NR_perfctr_info+2)
-#define __NR_vperfctr_iresume	(__NR_perfctr_info+3)
-#define __NR_vperfctr_read	(__NR_perfctr_info+4)
+#define __NR_ioprio_set		289
+#define __NR_ioprio_get		290
+#define __NR_inotify_init	291
+#define __NR_inotify_add_watch	292
+#define __NR_inotify_rm_watch	293
+#define __NR_migrate_pages	294
+#define __NR_openat		295
+#define __NR_mkdirat		296
+#define __NR_mknodat		297
+#define __NR_fchownat		298
+#define __NR_futimesat		299
+#define __NR_newfstatat		300
+#define __NR_unlinkat		301
+#define __NR_renameat		302
+#define __NR_linkat		303
+#define __NR_symlinkat		304
+#define __NR_readlinkat		305
+#define __NR_fchmodat		306
+#define __NR_faccessat		307
+#define __NR_pselect6		308
+#define __NR_ppoll		309
 
-#define NR_syscalls 294
+#define NR_syscalls 310
 
 /*
  * process the return value of a syscall, consigning it to one of two possible fates