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.

30 files changed, 780 insertions, 945 deletions

diff --git a/arch/parisc/kernel/asm-offsets.c b/arch/parisc/kernel/asm-offsets.c
index c11a5bc7c06..54fdb959149 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 0be51e92a2f..0dc924ccceb 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 d6c486e9501..2ca654bd632 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,
 };
 
@@ -689,7 +700,9 @@ parse_tree_node(struct device *parent, int index, struct hardware_path *modpath)
 		.fn	= check_parent,
 	};
 
-	device_for_each_child(parent, &recurse_data, descend_children);
+	if (device_for_each_child(parent, &recurse_data, descend_children))
+		/* nothing */;
+
 	return d.dev;
 }
 
@@ -835,8 +848,8 @@ static void print_parisc_device(struct parisc_device *dev)
 	static int count;
 
 	print_pa_hwpath(dev, hw_path);
-	printk(KERN_INFO "%d. %s at 0x%lx [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }",
-		++count, dev->name, dev->hpa.start, hw_path, dev->id.hw_type,
+	printk(KERN_INFO "%d. %s at 0x%p [%s] { %d, 0x%x, 0x%.3x, 0x%.5x }",
+		++count, dev->name, (void*) dev->hpa.start, hw_path, dev->id.hw_type,
 		dev->id.hversion_rev, dev->id.hversion, dev->id.sversion);
 
 	if (dev->num_addrs) {
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S
index 340b5e8d67b..8474f9e5ca1 100644
--- a/arch/parisc/kernel/entry.S
+++ b/arch/parisc/kernel/entry.S
@@ -37,6 +37,8 @@
 #include <asm/unistd.h>
 #include <asm/thread_info.h>
 
+#include <linux/linkage.h>
+
 #ifdef CONFIG_64BIT
 #define CMPIB           cmpib,*
 #define CMPB            cmpb,*
@@ -648,13 +650,11 @@
 	 * the static part of the kernel address space.
 	 */
 
-	.export fault_vector_20
-
 	.text
 
 	.align 4096
 
-fault_vector_20:
+ENTRY(fault_vector_20)
 	/* First vector is invalid (0) */
 	.ascii	"cows can fly"
 	.byte 0
@@ -695,14 +695,13 @@ fault_vector_20:
 	def		29
 	def		30
 	def		31
+END(fault_vector_20)
 
 #ifndef CONFIG_64BIT
 
-	.export fault_vector_11
-	
 	.align 2048
 
-fault_vector_11:
+ENTRY(fault_vector_11)
 	/* First vector is invalid (0) */
 	.ascii	"cows can fly"
 	.byte 0
@@ -743,6 +742,7 @@ fault_vector_11:
 	def		29
 	def		30
 	def		31
+END(fault_vector_11)
 
 #endif
 
@@ -762,9 +762,8 @@ fault_vector_11:
 #define CLONE_VM 0x100	/* Must agree with <linux/sched.h> */
 #define CLONE_UNTRACED 0x00800000
 
-	.export __kernel_thread, code
 	.import do_fork
-__kernel_thread:
+ENTRY(__kernel_thread)
 	STREG	%r2, -RP_OFFSET(%r30)
 
 	copy	%r30, %r1
@@ -797,6 +796,7 @@ __kernel_thread:
 	ldo	-PT_SZ_ALGN(%r30), %r30
 	bv	%r0(%r2)
 	nop
+ENDPROC(__kernel_thread)
 
 	/*
 	 * Child Returns here
@@ -805,8 +805,7 @@ __kernel_thread:
 	 * into task save area.
 	 */
 
-	.export	ret_from_kernel_thread
-ret_from_kernel_thread:
+ENTRY(ret_from_kernel_thread)
 
 	/* Call schedule_tail first though */
 	BL	schedule_tail, %r2
@@ -833,10 +832,10 @@ ret_from_kernel_thread:
 	bv	%r0(%r1)
 #endif
 	ldi	0, %r26
+ENDPROC(ret_from_kernel_thread)
 
 	.import	sys_execve, code
-	.export	__execve, code
-__execve:
+ENTRY(__execve)
 	copy	%r2, %r15
 	copy	%r30, %r16
 	ldo	PT_SZ_ALGN(%r30), %r30
@@ -856,16 +855,15 @@ __execve:
 	copy	%r16, %r30
 	bv	%r0(%r2)
 	nop
+ENDPROC(__execve)
 
-	.align 4
 
 	/*
 	 * struct task_struct *_switch_to(struct task_struct *prev,
 	 *	struct task_struct *next)
 	 *
 	 * switch kernel stacks and return prev */
-	.export	_switch_to, code
-_switch_to:
+ENTRY(_switch_to)
 	STREG	 %r2, -RP_OFFSET(%r30)
 
 	callee_save_float
@@ -890,6 +888,7 @@ _switch_to_ret:
 	LDREG	-RP_OFFSET(%r30), %r2
 	bv	%r0(%r2)
 	copy	%r26, %r28
+ENDPROC(_switch_to)
 
 	/*
 	 * Common rfi return path for interruptions, kernel execve, and
@@ -907,8 +906,7 @@ _switch_to_ret:
 
 	.align 4096
 
-	.export	syscall_exit_rfi
-syscall_exit_rfi:
+ENTRY(syscall_exit_rfi)
 	mfctl   %cr30,%r16
 	LDREG	TI_TASK(%r16), %r16	/* thread_info -> task_struct */
 	ldo	TASK_REGS(%r16),%r16
@@ -978,11 +976,36 @@ intr_check_resched:
 	LDREG   TI_FLAGS(%r1),%r19	/* sched.h: TIF_NEED_RESCHED */
 	bb,<,n	%r19,31-TIF_NEED_RESCHED,intr_do_resched /* forward */
 
+	.import do_notify_resume,code
 intr_check_sig:
 	/* As above */
 	mfctl   %cr30,%r1
-	LDREG	TI_FLAGS(%r1),%r19	/* sched.h: TIF_SIGPENDING */
-	bb,<,n %r19, 31-TIF_SIGPENDING, intr_do_signal /* forward */
+	LDREG	TI_FLAGS(%r1),%r19
+	ldi	(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK), %r20
+	and,COND(<>)	%r19, %r20, %r0
+	b,n	intr_restore	/* skip past if we've nothing to do */
+
+	/* This check is critical to having LWS
+	 * working. The IASQ is zero on the gateway
+	 * page and we cannot deliver any signals until
+	 * we get off the gateway page.
+	 *
+	 * Only do signals if we are returning to user space
+	 */
+	LDREG	PT_IASQ0(%r16), %r20
+	CMPIB=,n 0,%r20,intr_restore /* backward */
+	LDREG	PT_IASQ1(%r16), %r20
+	CMPIB=,n 0,%r20,intr_restore /* backward */
+
+	copy	%r0, %r25			/* long in_syscall = 0 */
+#ifdef CONFIG_64BIT
+	ldo	-16(%r30),%r29			/* Reference param save area */
+#endif
+
+	BL	do_notify_resume,%r2
+	copy	%r16, %r26			/* struct pt_regs *regs */
+
+	b,n	intr_check_sig
 
 intr_restore:
 	copy            %r16,%r29
@@ -1072,35 +1095,6 @@ intr_do_preempt:
 	b,n	intr_restore		/* ssm PSW_SM_I done by intr_restore */
 #endif /* CONFIG_PREEMPT */
 
-	.import do_signal,code
-intr_do_signal:
-	/* 
-		This check is critical to having LWS
-		working. The IASQ is zero on the gateway
-		page and we cannot deliver any signals until
-		we get off the gateway page.
-
-		Only do signals if we are returning to user space 
-	*/
-	LDREG	PT_IASQ0(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
-	nop
-	LDREG	PT_IASQ1(%r16), %r20
-	CMPIB= 0,%r20,intr_restore /* backward */
-	nop
-
-	copy	%r0, %r24			/* unsigned long in_syscall */
-	copy	%r16, %r25			/* struct pt_regs *regs */
-#ifdef CONFIG_64BIT
-	ldo	-16(%r30),%r29			/* Reference param save area */
-#endif
-
-	BL	do_signal,%r2
-	copy	%r0, %r26			/* sigset_t *oldset = NULL */
-
-	b	intr_check_sig
-	nop
-
 	/*
 	 * External interrupts.
 	 */
@@ -1115,11 +1109,7 @@ intr_extint:
 	mfctl	%cr31,%r1
 	copy	%r30,%r17
 	/* FIXME! depi below has hardcoded idea of interrupt stack size (32k)*/
-#ifdef CONFIG_64BIT
-	depdi	0,63,15,%r17
-#else
-	depi	0,31,15,%r17
-#endif
+	DEPI	0,31,15,%r17
 	CMPB=,n	%r1,%r17,2f
 	get_stack_use_cr31
 	b,n 3f
@@ -1148,13 +1138,12 @@ intr_extint:
 
 	b	do_cpu_irq_mask
 	ldo	R%intr_return(%r2), %r2	/* return to intr_return, not here */
+ENDPROC(syscall_exit_rfi)
 
 
 	/* Generic interruptions (illegal insn, unaligned, page fault, etc) */
 
-	.export         intr_save, code /* for os_hpmc */
-
-intr_save:
+ENTRY(intr_save)		/* for os_hpmc */
 	mfsp    %sr7,%r16
 	CMPIB=,n 0,%r16,1f
 	get_stack_use_cr30
@@ -1229,6 +1218,7 @@ skip_save_ior:
 
 	b		handle_interruption
 	ldo		R%intr_check_sig(%r2), %r2
+ENDPROC(intr_save)
 
 
 	/*
@@ -1814,9 +1804,7 @@ dtlb_fault:
 	LDREG   PT_GR18(\regs),%r18
 	.endm
 
-	.export sys_fork_wrapper
-	.export child_return
-sys_fork_wrapper:
+ENTRY(sys_fork_wrapper)
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
 	ldo	TASK_REGS(%r1),%r1
 	reg_save %r1
@@ -1853,9 +1841,10 @@ wrapper_exit:
 	ldi	__NR_fork,%r20
 	bv %r0(%r2)
 	STREG	%r20,PT_GR20(%r1)
+ENDPROC(sys_fork_wrapper)
 
 	/* Set the return value for the child */
-child_return:
+ENTRY(child_return)
 	BL	schedule_tail, %r2
 	nop
 
@@ -1863,10 +1852,10 @@ child_return:
 	LDREG	TASK_PT_GR19(%r1),%r2
 	b	wrapper_exit
 	copy	%r0,%r28
+ENDPROC(child_return)
 
-	
-	.export sys_clone_wrapper
-sys_clone_wrapper:
+
+ENTRY(sys_clone_wrapper)
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 	ldo	TASK_REGS(%r1),%r1	/* get pt regs */
 	reg_save %r1
@@ -1887,9 +1876,10 @@ sys_clone_wrapper:
 
 	b	wrapper_exit
 	LDREG	-RP_OFFSET-FRAME_SIZE(%r30),%r2
+ENDPROC(sys_clone_wrapper)
+
 
-	.export sys_vfork_wrapper
-sys_vfork_wrapper:
+ENTRY(sys_vfork_wrapper)
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 	ldo	TASK_REGS(%r1),%r1	/* get pt regs */
 	reg_save %r1
@@ -1910,6 +1900,7 @@ sys_vfork_wrapper:
 
 	b	wrapper_exit
 	LDREG	-RP_OFFSET-FRAME_SIZE(%r30),%r2
+ENDPROC(sys_vfork_wrapper)
 
 	
 	.macro  execve_wrapper execve
@@ -1946,22 +1937,19 @@ error_\execve:
 	nop
 	.endm
 
-	.export sys_execve_wrapper
 	.import sys_execve
-
-sys_execve_wrapper:
+ENTRY(sys_execve_wrapper)
 	execve_wrapper sys_execve
+ENDPROC(sys_execve_wrapper)
 
 #ifdef CONFIG_64BIT
-	.export sys32_execve_wrapper
 	.import sys32_execve
-
-sys32_execve_wrapper:
+ENTRY(sys32_execve_wrapper)
 	execve_wrapper sys32_execve
+ENDPROC(sys32_execve_wrapper)
 #endif
 
-	.export sys_rt_sigreturn_wrapper
-sys_rt_sigreturn_wrapper:
+ENTRY(sys_rt_sigreturn_wrapper)
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r26
 	ldo	TASK_REGS(%r26),%r26	/* get pt regs */
 	/* Don't save regs, we are going to restore them from sigcontext. */
@@ -1989,9 +1977,9 @@ sys_rt_sigreturn_wrapper:
 	 */
 	bv	%r0(%r2)
 	LDREG	PT_GR28(%r1),%r28  /* reload original r28 for syscall_exit */
+ENDPROC(sys_rt_sigreturn_wrapper)
 
-	.export sys_sigaltstack_wrapper
-sys_sigaltstack_wrapper:
+ENTRY(sys_sigaltstack_wrapper)
 	/* Get the user stack pointer */
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
 	ldo	TASK_REGS(%r1),%r24	/* get pt regs */
@@ -1999,10 +1987,10 @@ sys_sigaltstack_wrapper:
 	STREG	%r2, -RP_OFFSET(%r30)
 #ifdef CONFIG_64BIT
 	ldo	FRAME_SIZE(%r30), %r30
-	b,l	do_sigaltstack,%r2
+	BL	do_sigaltstack,%r2
 	ldo	-16(%r30),%r29		/* Reference param save area */
 #else
-	bl	do_sigaltstack,%r2
+	BL	do_sigaltstack,%r2
 	ldo	FRAME_SIZE(%r30), %r30
 #endif
 
@@ -2010,53 +1998,26 @@ sys_sigaltstack_wrapper:
 	LDREG	-RP_OFFSET(%r30), %r2
 	bv	%r0(%r2)
 	nop
+ENDPROC(sys_sigaltstack_wrapper)
 
 #ifdef CONFIG_64BIT
-	.export sys32_sigaltstack_wrapper
-sys32_sigaltstack_wrapper:
+ENTRY(sys32_sigaltstack_wrapper)
 	/* Get the user stack pointer */
 	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r24
 	LDREG	TASK_PT_GR30(%r24),%r24
 	STREG	%r2, -RP_OFFSET(%r30)
 	ldo	FRAME_SIZE(%r30), %r30
-	b,l	do_sigaltstack32,%r2
+	BL	do_sigaltstack32,%r2
 	ldo	-16(%r30),%r29		/* Reference param save area */
 
 	ldo	-FRAME_SIZE(%r30), %r30
 	LDREG	-RP_OFFSET(%r30), %r2
 	bv	%r0(%r2)
 	nop
+ENDPROC(sys32_sigaltstack_wrapper)
 #endif
 
-	.export sys_rt_sigsuspend_wrapper
-sys_rt_sigsuspend_wrapper:
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
-	ldo	TASK_REGS(%r1),%r24
-	reg_save %r24
-
-	STREG	%r2, -RP_OFFSET(%r30)
-#ifdef CONFIG_64BIT
-	ldo	FRAME_SIZE(%r30), %r30
-	b,l	sys_rt_sigsuspend,%r2
-	ldo	-16(%r30),%r29		/* Reference param save area */
-#else
-	bl	sys_rt_sigsuspend,%r2
-	ldo	FRAME_SIZE(%r30), %r30
-#endif
-
-	ldo	-FRAME_SIZE(%r30), %r30
-	LDREG	-RP_OFFSET(%r30), %r2
-
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30), %r1
-	ldo	TASK_REGS(%r1),%r1
-	reg_restore %r1
-
-	bv	%r0(%r2)
-	nop
-
-	.export syscall_exit
-syscall_exit:
-
+ENTRY(syscall_exit)
 	/* NOTE: HP-UX syscalls also come through here
 	 * after hpux_syscall_exit fixes up return
 	 * values. */
@@ -2119,9 +2080,35 @@ syscall_check_resched:
 	LDREG	TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19	/* long */
 	bb,<,n	%r19, 31-TIF_NEED_RESCHED, syscall_do_resched /* forward */
 
+	.import do_signal,code
 syscall_check_sig:
-	LDREG	TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19    /* get ti flags */
-	bb,<,n	%r19, 31-TIF_SIGPENDING, syscall_do_signal /* forward */
+	LDREG	TI_FLAGS-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r19
+	ldi	(_TIF_SIGPENDING|_TIF_RESTORE_SIGMASK), %r26
+	and,COND(<>)	%r19, %r26, %r0
+	b,n	syscall_restore	/* skip past if we've nothing to do */
+
+syscall_do_signal:
+	/* Save callee-save registers (for sigcontext).
+	 * FIXME: After this point the process structure should be
+	 * consistent with all the relevant state of the process
+	 * before the syscall.  We need to verify this.
+	 */
+	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
+	ldo	TASK_REGS(%r1), %r26		/* struct pt_regs *regs */
+	reg_save %r26
+
+#ifdef CONFIG_64BIT
+	ldo	-16(%r30),%r29			/* Reference param save area */
+#endif
+
+	BL	do_notify_resume,%r2
+	ldi	1, %r25				/* long in_syscall = 1 */
+
+	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
+	ldo	TASK_REGS(%r1), %r20		/* reload pt_regs */
+	reg_restore %r20
+
+	b,n     syscall_check_sig
 
 syscall_restore:
 	/* Are we being ptraced? */
@@ -2259,31 +2246,10 @@ syscall_do_resched:
 #endif
 	b       syscall_check_bh  /* if resched, we start over again */
 	nop
+ENDPROC(syscall_exit)
 
-	.import do_signal,code
-syscall_do_signal:
-	/* Save callee-save registers (for sigcontext).
-	   FIXME: After this point the process structure should be
-	   consistent with all the relevant state of the process
-	   before the syscall.  We need to verify this. */
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1 
-	ldo	TASK_REGS(%r1), %r25		/* struct pt_regs *regs */
-	reg_save %r25
-
-	ldi	1, %r24				/* unsigned long in_syscall */
-
-#ifdef CONFIG_64BIT
-	ldo	-16(%r30),%r29			/* Reference param save area */
-#endif
-	BL	do_signal,%r2
-	copy	%r0, %r26			/* sigset_t *oldset = NULL */
-
-	LDREG	TI_TASK-THREAD_SZ_ALGN-FRAME_SIZE(%r30),%r1
-	ldo	TASK_REGS(%r1), %r20		/* reload pt_regs */
-	reg_restore %r20
-
-	b,n     syscall_check_sig
 
+get_register:
 	/*
 	 * get_register is used by the non access tlb miss handlers to
 	 * copy the value of the general register specified in r8 into
@@ -2294,8 +2260,6 @@ syscall_do_signal:
 	 * a -1 in it, but that is OK, it just means that we will have
 	 * to use the slow path instead).
 	 */
-
-get_register:
 	blr     %r8,%r0
 	nop
 	bv      %r0(%r25)    /* r0 */
@@ -2363,13 +2327,13 @@ get_register:
 	bv      %r0(%r25)    /* r31 */
 	copy    %r31,%r1
 
+
+set_register:
 	/*
 	 * set_register is used by the non access tlb miss handlers to
 	 * copy the value of r1 into the general register specified in
 	 * r8.
 	 */
-
-set_register:
 	blr     %r8,%r0
 	nop
 	bv      %r0(%r25)    /* r0 (silly, but it is a place holder) */
@@ -2436,3 +2400,4 @@ set_register:
 	copy    %r1,%r30
 	bv      %r0(%r25)    /* r31 */
 	copy    %r1,%r31
+
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index 9158b707c0d..39dc835bf89 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -74,7 +74,7 @@ static DEFINE_SPINLOCK(pdc_lock);
 static unsigned long pdc_result[32] __attribute__ ((aligned (8)));
 static unsigned long pdc_result2[32] __attribute__ ((aligned (8)));
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #define WIDE_FIRMWARE 0x1
 #define NARROW_FIRMWARE 0x2
 
@@ -94,12 +94,12 @@ int parisc_narrow_firmware __read_mostly = 1;
  * when running a 64-bit kernel on such boxes (e.g. C200 or C360).
  */
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 long real64_call(unsigned long function, ...);
 #endif
 long real32_call(unsigned long function, ...);
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #   define MEM_PDC (unsigned long)(PAGE0->mem_pdc_hi) << 32 | PAGE0->mem_pdc
 #   define mem_pdc_call(args...) unlikely(parisc_narrow_firmware) ? real32_call(MEM_PDC, args) : real64_call(MEM_PDC, args)
 #else
@@ -117,7 +117,7 @@ long real32_call(unsigned long function, ...);
  */
 static unsigned long f_extend(unsigned long address)
 {
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	if(unlikely(parisc_narrow_firmware)) {
 		if((address & 0xff000000) == 0xf0000000)
 			return 0xf0f0f0f000000000UL | (u32)address;
@@ -139,7 +139,7 @@ static unsigned long f_extend(unsigned long address)
  */
 static void convert_to_wide(unsigned long *addr)
 {
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	int i;
 	unsigned int *p = (unsigned int *)addr;
 
@@ -158,7 +158,7 @@ static void convert_to_wide(unsigned long *addr)
  */
 void __init set_firmware_width(void)
 {
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	int retval;
 	unsigned long flags;
 
@@ -238,7 +238,7 @@ int __init pdc_chassis_info(struct pdc_chassis_info *chassis_info, void *led_inf
  * 
  * Must be correctly formatted or expect system crash
  */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 int pdc_pat_chassis_send_log(unsigned long state, unsigned long data)
 {
 	int retval = 0;
@@ -949,7 +949,7 @@ int pdc_tod_set(unsigned long sec, unsigned long usec)
 }
 EXPORT_SYMBOL(pdc_tod_set);
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
 		struct pdc_memory_table *tbl, unsigned long entries)
 {
@@ -965,7 +965,7 @@ int pdc_mem_mem_table(struct pdc_memory_table_raddr *r_addr,
 
 	return retval;
 }
-#endif /* __LP64__ */
+#endif /* CONFIG_64BIT */
 
 /* FIXME: Is this pdc used?  I could not find type reference to ftc_bitmap
  * so I guessed at unsigned long.  Someone who knows what this does, can fix
@@ -1204,7 +1204,7 @@ int pdc_sti_call(unsigned long func, unsigned long flags,
 }
 EXPORT_SYMBOL(pdc_sti_call);
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 /**
  * pdc_pat_cell_get_number - Returns the cell number.
  * @cell_info: The return buffer.
@@ -1387,7 +1387,7 @@ int pdc_pat_io_pci_cfg_write(unsigned long pci_addr, int pci_size, u32 val)
 
 	return retval