Merge master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/kyle/parisc-2.6: (78 commits)
  [PARISC] Use symbolic last syscall in __NR_Linux_syscalls
  [PARISC] Add missing statfs64 and fstatfs64 syscalls
  Revert "[PARISC] Optimize TLB flush on SMP systems"
  [PARISC] Compat signal fixes for 64-bit parisc
  [PARISC] Reorder syscalls to match unistd.h
  Revert "[PATCH] make kernel/signal.c:kill_proc_info() static"
  [PARISC] fix sys_rt_sigqueueinfo
  [PARISC] fix section mismatch warnings in harmony sound driver
  [PARISC] do not export get_register/set_register
  [PARISC] add ENTRY()/ENDPROC() and simplify assembly of HP/UX emulation code
  [PARISC] convert to use CONFIG_64BIT instead of __LP64__
  [PARISC] use CONFIG_64BIT instead of __LP64__
  [PARISC] add ASM_EXCEPTIONTABLE_ENTRY() macro
  [PARISC] more ENTRY(), ENDPROC(), END() conversions
  [PARISC] fix ENTRY() and ENDPROC() for 64bit-parisc
  [PARISC] Fixes /proc/cpuinfo cache output on B160L
  [PARISC] implement standard ENTRY(), END() and ENDPROC()
  [PARISC] kill ENTRY_SYS_CPUS
  [PARISC] clean up debugging printks in smp.c
  [PARISC] factor syscall_restart code out of do_signal
  ...

Fix conflict in include/linux/sched.h due to kill_proc_info() being made
publicly available to PARISC again.

46 files changed, 957 insertions, 1270 deletions

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 28da4e71c443..3d73545e8c48 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -37,6 +37,11 @@ config GENERIC_FIND_NEXT_BIT
 	bool
 	default y
 
+config GENERIC_BUG
+	bool
+	default y
+	depends on BUG
+
 config GENERIC_HWEIGHT
 	bool
 	default y
@@ -45,6 +50,10 @@ config GENERIC_CALIBRATE_DELAY
 	bool
 	default y
 
+config GENERIC_TIME
+	bool
+	default y
+
 config TIME_LOW_RES
 	bool
 	depends on SMP
diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile
index 9b7e42490dd1..760567a9ba16 100644
--- a/arch/parisc/Makefile
+++ b/arch/parisc/Makefile
@@ -35,12 +35,8 @@ FINAL_LD=$(CROSS_COMPILE)ld --warn-common --warn-section-align
 
 OBJCOPY_FLAGS =-O binary -R .note -R .comment -S
 
-GCC_VERSION     := $(call cc-version)
-ifneq ($(shell if [ -z $(GCC_VERSION) ] ; then echo "bad"; fi ;),)
-$(error Sorry, couldn't find ($(cc-version)).)
-endif
-ifneq ($(shell if [ $(GCC_VERSION) -lt 0303 ] ; then echo "bad"; fi ;),)
-$(error Sorry, your compiler is too old ($(GCC_VERSION)).  GCC v3.3 or above is required.)
+ifneq ($(call cc-ifversion, -lt, 0303, "bad"),)
+$(error Sorry, GCC v3.3 or above is required.)
 endif
 
 cflags-y	:= -pipe
diff --git a/arch/parisc/hpux/entry_hpux.S b/arch/parisc/hpux/entry_hpux.S
index 31c8cccfba31..d15a413572f0 100644
--- a/arch/parisc/hpux/entry_hpux.S
+++ b/arch/parisc/hpux/entry_hpux.S
@@ -18,17 +18,16 @@
  *    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  */
 
+#include <asm/unistd.h>
+#include <asm/assembly.h>
 #include <linux/sys.h>
 #include <linux/linkage.h>
-#include <asm/unistd.h>
 
-#define ENTRY_NAME(_name_) .word _name_
+#define ENTRY_NAME(_name_) ASM_ULONG_INSN _name_
 
 	.section .rodata,"a"
-	.align 4
-	.export hpux_call_table
 	.import hpux_unimplemented_wrapper
-hpux_call_table:
+ENTRY(hpux_call_table)
 	ENTRY_NAME(sys_ni_syscall)	/* 0 */
 	ENTRY_NAME(sys_exit)
 	ENTRY_NAME(hpux_fork_wrapper)
@@ -542,5 +541,6 @@ hpux_call_table:
 	ENTRY_NAME(hpux_unimplemented_wrapper)      /* 510 */
 	ENTRY_NAME(hpux_unimplemented_wrapper)
 	ENTRY_NAME(hpux_unimplemented_wrapper)
+END(hpux_call_table)
 .end
 
diff --git a/arch/parisc/hpux/fs.c b/arch/parisc/hpux/fs.c
index 4204cd1f3cf9..c7a81a2c014c 100644
--- a/arch/parisc/hpux/fs.c
+++ b/arch/parisc/hpux/fs.c
@@ -35,13 +35,13 @@ int hpux_execve(struct pt_regs *regs)
 	int error;
 	char *filename;
 
-	filename = getname((char *) regs->gr[26]);
+	filename = getname((char __user *) regs->gr[26]);
 	error = PTR_ERR(filename);
 	if (IS_ERR(filename))
 		goto out;
 
-	error = do_execve(filename, (char **) regs->gr[25],
-		(char **)regs->gr[24], regs);
+	error = do_execve(filename, (char __user * __user *) regs->gr[25],
+		(char __user * __user *) regs->gr[24], regs);
 
 	if (error == 0) {
 		task_lock(current);
@@ -63,19 +63,19 @@ struct hpux_dirent {
 };
 
 struct getdents_callback {
-	struct hpux_dirent *current_dir;
-	struct hpux_dirent *previous;
+	struct hpux_dirent __user *current_dir;
+	struct hpux_dirent __user *previous;
 	int count;
 	int error;
 };
 
-#define NAME_OFFSET(de) ((int) ((de)->d_name - (char *) (de)))
+#define NAME_OFFSET(de) ((int) ((de)->d_name - (char __user *) (de)))
 #define ROUND_UP(x) (((x)+sizeof(long)-1) & ~(sizeof(long)-1))
 
 static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 		u64 ino, unsigned d_type)
 {
-	struct hpux_dirent * dirent;
+	struct hpux_dirent __user * dirent;
 	struct getdents_callback * buf = (struct getdents_callback *) __buf;
 	ino_t d_ino;
 	int reclen = ROUND_UP(NAME_OFFSET(dirent) + namlen + 1);
@@ -105,10 +105,10 @@ static int filldir(void * __buf, const char * name, int namlen, loff_t offset,
 #undef NAME_OFFSET
 #undef ROUND_UP
 
-int hpux_getdents(unsigned int fd, struct hpux_dirent *dirent, unsigned int count)
+int hpux_getdents(unsigned int fd, struct hpux_dirent __user *dirent, unsigned int count)
 {
 	struct file * file;
-	struct hpux_dirent * lastdirent;
+	struct hpux_dirent __user * lastdirent;
 	struct getdents_callback buf;
 	int error = -EBADF;
 
@@ -143,7 +143,7 @@ int hpux_mount(const char *fs, const char *path, int mflag,
 	return -ENOSYS;
 }
 
-static int cp_hpux_stat(struct kstat *stat, struct hpux_stat64 *statbuf)
+static int cp_hpux_stat(struct kstat *stat, struct hpux_stat64 __user *statbuf)
 {
 	struct hpux_stat64 tmp;
 
@@ -169,7 +169,7 @@ static int cp_hpux_stat(struct kstat *stat, struct hpux_stat64 *statbuf)
 	return copy_to_user(statbuf,&tmp,sizeof(tmp)) ? -EFAULT : 0;
 }
 
-long hpux_stat64(char *filename, struct hpux_stat64 *statbuf)
+long hpux_stat64(char __user *filename, struct hpux_stat64 __user *statbuf)
 {
 	struct kstat stat;
 	int error = vfs_stat(filename, &stat);
@@ -180,7 +180,7 @@ long hpux_stat64(char *filename, struct hpux_stat64 *statbuf)
 	return error;
 }
 
-long hpux_fstat64(unsigned int fd, struct hpux_stat64 *statbuf)
+long hpux_fstat64(unsigned int fd, struct hpux_stat64 __user *statbuf)
 {
 	struct kstat stat;
 	int error = vfs_fstat(fd, &stat);
@@ -191,7 +191,7 @@ long hpux_fstat64(unsigned int fd, struct hpux_stat64 *statbuf)
 	return error;
 }
 
-long hpux_lstat64(char *filename, struct hpux_stat64 *statbuf)
+long hpux_lstat64(char __user *filename, struct hpux_stat64 __user *statbuf)
 {
 	struct kstat stat;
 	int error = vfs_lstat(filename, &stat);
diff --git a/arch/parisc/hpux/gate.S b/arch/parisc/hpux/gate.S
index aaaf3306c05a..0b9d5b1e4b37 100644
--- a/arch/parisc/hpux/gate.S
+++ b/arch/parisc/hpux/gate.S
@@ -12,27 +12,18 @@
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
 #include <asm/errno.h>
+#include <linux/linkage.h>
 
-#ifdef __LP64__
-	.level          2.0w
-#else
-	.level		1.1
-#endif
+	.level	LEVEL
 	.text
 
-#ifdef __LP64__
-#define FRAME_SIZE	128
-#else
-#define FRAME_SIZE	64
-#endif
 	.import hpux_call_table
 	.import hpux_syscall_exit,code
-	.export hpux_gateway_page
 
 	.align 4096
-hpux_gateway_page:
+ENTRY(hpux_gateway_page)
 	nop
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #warning NEEDS WORK for 64-bit
 #endif
 	ldw     -64(%r30), %r29                 ;! 8th argument
@@ -101,7 +92,7 @@ hpux_gateway_page:
 	ldo	R%hpux_call_table(%r21), %r21
 	comiclr,>>=	__NR_HPUX_syscalls, %r22, %r0
 	b,n	syscall_nosys
-	ldwx,s	%r22(%r21), %r21
+	LDREGX	%r22(%r21), %r21
 	ldil	L%hpux_syscall_exit,%r2
 	be	0(%sr7,%r21)
 	ldo	R%hpux_syscall_exit(%r2),%r2
@@ -110,7 +101,7 @@ syscall_nosys:
 	ldil	L%hpux_syscall_exit,%r1
 	be	R%hpux_syscall_exit(%sr7,%r1)
 	ldo	-ENOSYS(%r0),%r28
+ENDPROC(hpux_gateway_page)
 
 	.align 4096
-	.export end_hpux_gateway_page
-end_hpux_gateway_page:
+ENTRY(end_hpux_gateway_page)
diff --git a/arch/parisc/hpux/sys_hpux.c b/arch/parisc/hpux/sys_hpux.c
index 04c2ff444396..3e025df2dc86 100644
--- a/arch/parisc/hpux/sys_hpux.c
+++ b/arch/parisc/hpux/sys_hpux.c
@@ -61,7 +61,7 @@ int hpux_ptrace(void)
 	return -ENOSYS;
 }
 
-int hpux_wait(int *stat_loc)
+int hpux_wait(int __user *stat_loc)
 {
 	return sys_waitpid(-1, stat_loc, 0);
 }
@@ -255,7 +255,7 @@ asmlinkage long hpux_fstatfs(unsigned int fd, struct hpux_statfs __user * buf)
 /*  TODO: Are these put_user calls OK?  Should they pass an int?
  *        (I copied it from sys_i386.c like this.)
  */
-static int hpux_uname(struct hpux_utsname *name)
+static int hpux_uname(struct hpux_utsname __user *name)
 {
 	int error;
 
@@ -300,14 +300,14 @@ static int hpux_uname(struct hpux_utsname *name)
 /*  Note: HP-UX just uses the old suser() function to check perms
  *  in this system call.  We'll use capable(CAP_SYS_ADMIN).
  */
-int hpux_utssys(char *ubuf, int n, int type)
+int hpux_utssys(char __user *ubuf, int n, int type)
 {
 	int len;
 	int error;
 	switch( type ) {
 	case 0:
 		/*  uname():  */
-		return( hpux_uname( (struct hpux_utsname *)ubuf ) );
+		return hpux_uname((struct hpux_utsname __user *)ubuf);
 		break ;
 	case 1:
 		/*  Obsolete (used to be umask().)  */
@@ -315,8 +315,9 @@ int hpux_utssys(char *ubuf, int n, int type)
 		break ;
 	case 2:
 		/*  ustat():  */
-		return( hpux_ustat(new_decode_dev(n), (struct hpux_ustat *)ubuf) );
-		break ;
+		return hpux_ustat(new_decode_dev(n),
+				  (struct hpux_ustat __user *)ubuf);
+		break;
 	case 3:
 		/*  setuname():
 		 *
@@ -332,7 +333,7 @@ int hpux_utssys(char *ubuf, int n, int type)
 			return -EINVAL ;
 		/*  Unlike Linux, HP-UX truncates it if n is too big:  */
 		len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
-		return( sys_sethostname(ubuf, len) );
+		return sys_sethostname(ubuf, len);
 		break ;
 	case 4:
 		/*  sethostname():
@@ -346,7 +347,7 @@ int hpux_utssys(char *ubuf, int n, int type)
 			return -EINVAL ;
 		/*  Unlike Linux, HP-UX truncates it if n is too big:  */
 		len = (n <= __NEW_UTS_LEN) ? n : __NEW_UTS_LEN ;
-		return( sys_sethostname(ubuf, len) );
+		return sys_sethostname(ubuf, len);
 		break ;
 	case 5:
 		/*  gethostname():
@@ -356,7 +357,7 @@ int hpux_utssys(char *ubuf, int n, int type)
 		/*  Unlike Linux, HP-UX returns an error if n==0:  */
 		if ( n <= 0 )
 			return -EINVAL ;
-		return( sys_gethostname(ubuf, n) );
+		return sys_gethostname(ubuf, n);
 		break ;
 	case 6:
 		/*  Supposedly called from setuname() in libc.
@@ -420,7 +421,7 @@ int hpux_utssys(char *ubuf, int n, int type)
 	}
 }
 
-int hpux_getdomainname(char *name, int len)
+int hpux_getdomainname(char __user *name, int len)
 {
  	int nlen;
  	int err = -EFAULT;
@@ -471,17 +472,18 @@ int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
 	printk(KERN_DEBUG "hpux_sysfs called with arg1='%lx'\n", arg1);
 
 	if ( opcode == 1 ) { /* GETFSIND */	
-		len = strlen_user((char *)arg1);
+		char __user *user_fsname = (char __user *)arg1;
+		len = strlen_user(user_fsname);
 		printk(KERN_DEBUG "len of arg1 = %d\n", len);
 		if (len == 0)
 			return 0;
 		fsname = kmalloc(len, GFP_KERNEL);
-		if ( !fsname ) {
+		if (!fsname) {
 			printk(KERN_DEBUG "failed to kmalloc fsname\n");
 			return 0;
 		}
 
-		if ( copy_from_user(fsname, (char *)arg1, len) ) {
+		if (copy_from_user(fsname, user_fsname, len)) {
 			printk(KERN_DEBUG "failed to copy_from_user fsname\n");
 			kfree(fsname);
 			return 0;
@@ -495,7 +497,7 @@ int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
 			fstype = 0;
 		} else {
 			fstype = 0;
-		};
+		}
 
 		kfree(fsname);
 
@@ -509,7 +511,7 @@ int hpux_sysfs(int opcode, unsigned long arg1, unsigned long arg2)
 
 
 /* Table of syscall names and handle for unimplemented routines */
-static const char *syscall_names[] = {
+static const char * const syscall_names[] = {
 	"nosys",                  /* 0 */
 	"exit",                  
 	"fork",                  
diff --git a/arch/parisc/hpux/wrappers.S b/arch/parisc/hpux/wrappers.S
index 0b0c3a66b1be..58c53c879c02 100644
--- a/arch/parisc/hpux/wrappers.S
+++ b/arch/parisc/hpux/wrappers.S
@@ -20,19 +20,16 @@
  *    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
  */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #warning PA64 support needs more work...did first cut
 #endif
 
 #include <asm/asm-offsets.h>
 #include <asm/assembly.h>
 #include <asm/signal.h>
+#include <linux/linkage.h>
 
-#ifdef __LP64__
-	.level          2.0w
-#else
-	.level		1.1
-#endif
+	.level	LEVEL
 	.text
 
 	/* These should probably go in a header file somewhere.
@@ -41,7 +38,7 @@
 	 * register save/restore macros.
 	 */
 	.macro	reg_save regs
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #warning NEEDS WORK for 64-bit
 #endif
 	STREG	%r3, PT_GR3(\regs)
@@ -82,11 +79,9 @@
 	.endm
 
 
-	.export hpux_fork_wrapper
-	.export hpux_child_return
 	.import sys_fork
 
-hpux_fork_wrapper:
+ENTRY(hpux_fork_wrapper)
 	ldo	TASK_REGS-TASK_SZ_ALGN-64(%r30),%r1	    ;! get pt regs
 							    ;! pointer in task
 	reg_save %r1
@@ -128,27 +123,26 @@ fork_return:
 fork_exit:
 	bv	%r0(%r2)
 	nop
+ENDPROC(hpux_fork_wrapper)
 
 	/* Set the return value for the child */
 
-hpux_child_return:
+ENTRY(hpux_child_return)
 #if defined(CONFIG_SMP) || defined(CONFIG_PREEMPT)
-	bl	schedule_tail, %r2
-	nop
+	bl,n	schedule_tail, %r2
 #endif
 
 	LDREG	TASK_PT_GR19-TASK_SZ_ALGN-128(%r30),%r2
 	b fork_return
 	copy %r0,%r28
+ENDPROC(hpux_child_return)
 
-	.export hpux_execve_wrapper
-	.export hpux_execv_wrapper
 	.import hpux_execve
 
-hpux_execv_wrapper:
+ENTRY(hpux_execv_wrapper)
 	copy %r0,%r24  /* NULL environment */
 
-hpux_execve_wrapper:
+ENTRY(hpux_execve_wrapper)
 
 	ldo	TASK_REGS-TASK_SZ_ALGN-64(%r30),%r1	    ;! get pt regs
 
@@ -187,13 +181,13 @@ hpux_execve_wrapper:
 exec_error:
 	bv %r0(%r19)
 	nop
+ENDPROC(hpux_execv_wrapper)
 
-	.export hpux_pipe_wrapper
 	.import hpux_pipe
 
 	/* HP-UX expects pipefd's returned in r28 & r29 */
 
-hpux_pipe_wrapper:
+ENTRY(hpux_pipe_wrapper)
 	STREG %r2,-20(%r30)
 	ldo 64(%r30),%r30
 	bl hpux_pipe,%r2
@@ -212,12 +206,11 @@ hpux_pipe_wrapper:
 pipe_exit:
 	bv %r0(%r2)
 	ldo -64(%r30),%r30
+ENDPROC(hpux_pipe_wrapper)
 
-	.export hpux_syscall_exit
 	.import syscall_exit
 
-hpux_syscall_exit:
-
+ENTRY(hpux_syscall_exit)
 	/*
 	 *
 	 * HP-UX call return conventions:
@@ -246,12 +239,12 @@ hpux_syscall_exit:
 	ldo 1(%r0),%r22
 
 no_error:
-	b syscall_exit
-	nop
+	b,n syscall_exit
+ENDPROC(hpux_syscall_exit)
 
-	.export hpux_unimplemented_wrapper
 	.import hpux_unimplemented
 
-hpux_unimplemented_wrapper:
+ENTRY(hpux_unimplemented_wrapper)
 	b hpux_unimplemented
 	STREG %r22,-64(%r30)  /* overwrite arg8 with syscall number */
+ENDPROC(hpux_unimplemented_wrapper)
diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index c11a5bc7c067..54fdb959149c 100644
--- a/arch/parisc/kernel/asm-offsets.c
+++ b/arch/parisc/kernel/asm-offsets.c
@@ -44,7 +44,7 @@
 
 #define BLANK() asm volatile("\n->" : : )
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #define FRAME_SIZE	128
 #else
 #define FRAME_SIZE	64
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 0be51e92a2fc..0dc924ccceb5 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -68,16 +68,6 @@ flush_cache_all_local(void)
 }
 EXPORT_SYMBOL(flush_cache_all_local);
 
-/* flushes EVERYTHING (tlb & cache) */
-
-void
-flush_all_caches(void)
-{
-	flush_cache_all();
-	flush_tlb_all();
-}
-EXPORT_SYMBOL(flush_all_caches);
-
 void
 update_mmu_cache(struct vm_area_struct *vma, unsigned long address, pte_t pte)
 {
@@ -99,7 +89,7 @@ show_cache_info(struct seq_file *m)
 
 	seq_printf(m, "I-cache\t\t: %ld KB\n", 
 		cache_info.ic_size/1024 );
-	if (cache_info.dc_loop == 1)
+	if (cache_info.dc_loop != 1)
 		snprintf(buf, 32, "%lu-way associative", cache_info.dc_loop);
 	seq_printf(m, "D-cache\t\t: %ld KB (%s%s, %s)\n",
 		cache_info.dc_size/1024,
@@ -270,6 +260,83 @@ void disable_sr_hashing(void)
 		panic("SpaceID hashing is still on!\n");
 }
 
+/* Simple function to work out if we have an existing address translation
+ * for a user space vma. */
+static inline int translation_exists(struct vm_area_struct *vma,
+				unsigned long addr, unsigned long pfn)
+{
+	pgd_t *pgd = pgd_offset(vma->vm_mm, addr);
+	pmd_t *pmd;
+	pte_t pte;
+
+	if(pgd_none(*pgd))
+		return 0;
+
+	pmd = pmd_offset(pgd, addr);
+	if(pmd_none(*pmd) || pmd_bad(*pmd))
+		return 0;
+
+	/* We cannot take the pte lock here: flush_cache_page is usually
+	 * called with pte lock already held.  Whereas flush_dcache_page
+	 * takes flush_dcache_mmap_lock, which is lower in the hierarchy:
+	 * the vma itself is secure, but the pte might come or go racily.
+	 */
+	pte = *pte_offset_map(pmd, addr);
+	/* But pte_unmap() does nothing on this architecture */
+
+	/* Filter out coincidental file entries and swap entries */
+	if (!(pte_val(pte) & (_PAGE_FLUSH|_PAGE_PRESENT)))
+		return 0;
+
+	return pte_pfn(pte) == pfn;
+}
+
+/* Private function to flush a page from the cache of a non-current
+ * process.  cr25 contains the Page Directory of the current user
+ * process; we're going to hijack both it and the user space %sr3 to
+ * temporarily make the non-current process current.  We have to do
+ * this because cache flushing may cause a non-access tlb miss which
+ * the handlers have to fill in from the pgd of the non-current
+ * process. */
+static inline void
+flush_user_cache_page_non_current(struct vm_area_struct *vma,
+				  unsigned long vmaddr)
+{
+	/* save the current process space and pgd */
+	unsigned long space = mfsp(3), pgd = mfctl(25);
+
+	/* we don't mind taking interrups since they may not
+	 * do anything with user space, but we can't
+	 * be preempted here */
+	preempt_disable();
+
+	/* make us current */
+	mtctl(__pa(vma->vm_mm->pgd), 25);
+	mtsp(vma->vm_mm->context, 3);
+
+	flush_user_dcache_page(vmaddr);
+	if(vma->vm_flags & VM_EXEC)
+		flush_user_icache_page(vmaddr);
+
+	/* put the old current process back */
+	mtsp(space, 3);
+	mtctl(pgd, 25);
+	preempt_enable();
+}
+
+
+static inline void
+__flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr)
+{
+	if (likely(vma->vm_mm->context == mfsp(3))) {
+		flush_user_dcache_page(vmaddr);
+		if (vma->vm_flags & VM_EXEC)
+			flush_user_icache_page(vmaddr);
+	} else {
+		flush_user_cache_page_non_current(vma, vmaddr);
+	}
+}
+
 void flush_dcache_page(struct page *page)
 {
 	struct address_space *mapping = page_mapping(page);
@@ -342,7 +409,7 @@ void clear_user_page_asm(void *page, unsigned long vaddr)
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
 int parisc_cache_flush_threshold __read_mostly = FLUSH_THRESHOLD;
 
-void parisc_setup_cache_timing(void)
+void __init parisc_setup_cache_timing(void)
 {
 	unsigned long rangetime, alltime;
 	unsigned long size;
@@ -366,6 +433,9 @@ void parisc_setup_cache_timing(void)
 	if (!parisc_cache_flush_threshold)
 		parisc_cache_flush_threshold = FLUSH_THRESHOLD;
 
+	if (parisc_cache_flush_threshold > cache_info.dc_size)
+		parisc_cache_flush_threshold = cache_info.dc_size;
+
 	printk(KERN_INFO "Setting cache flush threshold to %x (%d CPUs online)\n", parisc_cache_flush_threshold, num_online_cpus());
 }
 
@@ -410,3 +480,97 @@ void kunmap_parisc(void *addr)
 }
 EXPORT_SYMBOL(kunmap_parisc);
 #endif
+
+void __flush_tlb_range(unsigned long sid, unsigned long start,
+		       unsigned long end)
+{
+	unsigned long npages;
+
+	npages = ((end - (start & PAGE_MASK)) + (PAGE_SIZE - 1)) >> PAGE_SHIFT;
+	if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
+		flush_tlb_all();
+	else {
+		mtsp(sid, 1);
+		purge_tlb_start();
+		if (split_tlb) {
+			while (npages--) {
+				pdtlb(start);
+				pitlb(start);
+				start += PAGE_SIZE;
+			}
+		} else {
+			while (npages--) {
+				pdtlb(start);
+				start += PAGE_SIZE;
+			}
+		}
+		purge_tlb_end();
+	}
+}
+
+static void cacheflush_h_tmp_function(void *dummy)
+{
+	flush_cache_all_local();
+}
+
+void flush_cache_all(void)
+{
+	on_each_cpu(cacheflush_h_tmp_function, NULL, 1, 1);
+}
+
+void flush_cache_mm(struct mm_struct *mm)
+{
+#ifdef CONFIG_SMP
+	flush_cache_all();
+#else
+	flush_cache_all_local();
+#endif
+}
+
+void
+flush_user_dcache_range(unsigned long start, unsigned long end)
+{
+	if ((end - start) < parisc_cache_flush_threshold)
+		flush_user_dcache_range_asm(start,end);
+	else
+		flush_data_cache();
+}
+
+void
+flush_user_icache_range(unsigned long start, unsigned long end)
+{
+	if ((end - start) < parisc_cache_flush_threshold)
+		flush_user_icache_range_asm(start,end);
+	else
+		flush_instruction_cache();
+}
+
+
+void flush_cache_range(struct vm_area_struct *vma,
+		unsigned long start, unsigned long end)
+{
+	int sr3;
+
+	if (!vma->vm_mm->context) {
+		BUG();
+		return;
+	}
+
+	sr3 = mfsp(3);
+	if (vma->vm_mm->context == sr3) {
+		flush_user_dcache_range(start,end);
+		flush_user_icache_range(start,end);
+	} else {
+		flush_cache_all();
+	}
+}
+
+void
+flush_cache_page(struct vm_area_struct *vma, unsigned long vmaddr, unsigned long pfn)
+{
+	BUG_ON(!vma->vm_mm->context);
+
+	if (likely(translation_exists(vma, vmaddr, pfn)))
+		__flush_cache_page(vma, vmaddr);
+
+}
diff --git a/arch/parisc/kernel/drivers.c b/arch/parisc/kernel/drivers.c
index d6c486e9501c..2ca654bd6322 100644
--- a/arch/parisc/kernel/drivers.c
+++ b/arch/parisc/kernel/drivers.c
@@ -562,12 +562,23 @@ pa_dev_attr(rev, id.hversion_rev, "0x%x\n");
 pa_dev_attr_id(hversion, "0x%03x\n");
 pa_dev_attr_id(sversion, "0x%05x\n");
 
+static ssize_t modalias_show(struct device *dev, struct device_attribute *attr, char *buf)
+{
+	struct parisc_device *padev = to_parisc_device(dev);
+	struct parisc_device_id *id = &padev->id;
+
+	return sprintf(buf, "parisc:t%02Xhv%04Xrev%02Xsv%08X\n",
+		(u8)id->hw_type, (u16)id->hversion, (u8)id->hversion_rev,
+		(u32)id->sversion);
+}
+
 static struct device_attribute parisc_device_attrs[] = {
 	__ATTR_RO(irq),
 	__ATTR_RO(hw_type),
 	__ATTR_RO(rev),
 	__ATTR_RO(hversion),
 	__ATTR_RO(sversion),
+	__ATTR_RO(modalias),
 	__ATTR_NULL,
 };
 
@@ -689