26 files changed, 185 insertions, 200 deletions

diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
index 9038f39d9d73..06f8d5b5b0f9 100644
--- a/arch/parisc/Kconfig
+++ b/arch/parisc/Kconfig
@@ -16,6 +16,8 @@ config PARISC
         select RTC_DRV_GENERIC
         select INIT_ALL_POSSIBLE
         select BUG
+        select HAVE_PERF_COUNTERS
+        select GENERIC_ATOMIC64 if !64BIT
         help
           The PA-RISC microprocessor is designed by Hewlett-Packard and used
           in many of their workstations & servers (HP9000 700 and 800 series,
diff --git a/arch/parisc/include/asm/atomic.h b/arch/parisc/include/asm/atomic.h
index 7eeaff944360..8bc9e96699b2 100644
--- a/arch/parisc/include/asm/atomic.h
+++ b/arch/parisc/include/asm/atomic.h
@@ -222,13 +222,13 @@ static __inline__ int atomic_add_unless(atomic_t *v, int a, int u)
 
 #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0)
 
-#define atomic_add(i,v) ((void)(__atomic_add_return( ((int)(i)),(v))))
-#define atomic_sub(i,v) ((void)(__atomic_add_return(-((int)(i)),(v))))
+#define atomic_add(i,v) ((void)(__atomic_add_return( (i),(v))))
+#define atomic_sub(i,v) ((void)(__atomic_add_return(-(i),(v))))
 #define atomic_inc(v)   ((void)(__atomic_add_return(   1,(v))))
 #define atomic_dec(v)   ((void)(__atomic_add_return(  -1,(v))))
 
-#define atomic_add_return(i,v)  (__atomic_add_return( ((int)(i)),(v)))
-#define atomic_sub_return(i,v)  (__atomic_add_return(-((int)(i)),(v)))
+#define atomic_add_return(i,v)  (__atomic_add_return( (i),(v)))
+#define atomic_sub_return(i,v)  (__atomic_add_return(-(i),(v)))
 #define atomic_inc_return(v)    (__atomic_add_return(   1,(v)))
 #define atomic_dec_return(v)    (__atomic_add_return(  -1,(v)))
 
@@ -336,7 +336,11 @@ static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 
 #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0)
 
-#endif /* CONFIG_64BIT */
+#else /* CONFIG_64BIT */
+
+#include <asm-generic/atomic64.h>
+
+#endif /* !CONFIG_64BIT */
 
 #include <asm-generic/atomic-long.h>
 
diff --git a/arch/parisc/include/asm/dma.h b/arch/parisc/include/asm/dma.h
index 31ad0f05af3d..f7a18f968703 100644
--- a/arch/parisc/include/asm/dma.h
+++ b/arch/parisc/include/asm/dma.h
@@ -1,5 +1,4 @@
-/* $Id: dma.h,v 1.2 1999/04/27 00:46:18 deller Exp $
- * linux/include/asm/dma.h: Defines for using and allocating dma channels.
+/* asm/dma.h: Defines for using and allocating dma channels.
  * Written by Hennus Bergman, 1992.
  * High DMA channel support & info by Hannu Savolainen
  * and John Boyd, Nov. 1992.
diff --git a/arch/parisc/include/asm/perf_counter.h b/arch/parisc/include/asm/perf_counter.h
new file mode 100644
index 000000000000..dc9e829f7013
--- /dev/null
+++ b/arch/parisc/include/asm/perf_counter.h
@@ -0,0 +1,7 @@
+#ifndef __ASM_PARISC_PERF_COUNTER_H
+#define __ASM_PARISC_PERF_COUNTER_H
+
+/* parisc only supports software counters through this interface. */
+static inline void set_perf_counter_pending(void) { }
+
+#endif /* __ASM_PARISC_PERF_COUNTER_H */
diff --git a/arch/parisc/include/asm/processor.h b/arch/parisc/include/asm/processor.h
index 9d64df8754ba..9ce66e9d1c2b 100644
--- a/arch/parisc/include/asm/processor.h
+++ b/arch/parisc/include/asm/processor.h
@@ -18,6 +18,7 @@
 #include <asm/types.h>
 #include <asm/system.h>
 #include <asm/percpu.h>
+
 #endif /* __ASSEMBLY__ */
 
 #define KERNEL_STACK_SIZE       (4*PAGE_SIZE)
@@ -127,6 +128,8 @@ struct thread_struct {
         unsigned long  flags;
 }; 
 
+#define task_pt_regs(tsk) ((struct pt_regs *)&((tsk)->thread.regs))
+
 /* Thread struct flags. */
 #define PARISC_UAC_NOPRINT      (1UL << 0)      /* see prctl and unaligned.c */
 #define PARISC_UAC_SIGBUS       (1UL << 1)
diff --git a/arch/parisc/include/asm/system.h b/arch/parisc/include/asm/system.h
index ee80c920b464..d91357bca5b4 100644
--- a/arch/parisc/include/asm/system.h
+++ b/arch/parisc/include/asm/system.h
@@ -168,8 +168,8 @@ static inline void set_eiem(unsigned long val)
 /* LDCW, the only atomic read-write operation PA-RISC has. *sigh*.  */
 #define __ldcw(a) ({                                            \
         unsigned __ret;                                         \
-        __asm__ __volatile__(__LDCW " 0(%1),%0"                 \
-                : "=r" (__ret) : "r" (a));                      \
+        __asm__ __volatile__(__LDCW " 0(%2),%0"                 \
+                : "=r" (__ret), "+m" (*(a)) : "r" (a));         \
         __ret;                                                  \
 })
 
diff --git a/arch/parisc/include/asm/thread_info.h b/arch/parisc/include/asm/thread_info.h
index 0407959da489..4ce0edfbe969 100644
--- a/arch/parisc/include/asm/thread_info.h
+++ b/arch/parisc/include/asm/thread_info.h
@@ -23,7 +23,7 @@ struct thread_info {
         .flags          = 0,                    \
         .cpu            = 0,                    \
         .addr_limit     = KERNEL_DS,            \
-        .preempt_count  = 1,                    \
+        .preempt_count  = INIT_PREEMPT_COUNT,   \
         .restart_block  = {                     \
                 .fn = do_no_restart_syscall     \
         }                                       \
diff --git a/arch/parisc/include/asm/tlbflush.h b/arch/parisc/include/asm/tlbflush.h
index 1f6fd4fc05b9..8f1a8100bf2d 100644
--- a/arch/parisc/include/asm/tlbflush.h
+++ b/arch/parisc/include/asm/tlbflush.h
@@ -12,14 +12,12 @@
  * N class systems, only one PxTLB inter processor broadcast can be
  * active at any one time on the Merced bus.  This tlb purge
  * synchronisation is fairly lightweight and harmless so we activate
- * it on all SMP systems not just the N class.  We also need to have
- * preemption disabled on uniprocessor machines, and spin_lock does that
- * nicely.
+ * it on all systems not just the N class.
  */
 extern spinlock_t pa_tlb_lock;
 
-#define purge_tlb_start(x) spin_lock(&pa_tlb_lock)
-#define purge_tlb_end(x) spin_unlock(&pa_tlb_lock)
+#define purge_tlb_start(flags)  spin_lock_irqsave(&pa_tlb_lock, flags)
+#define purge_tlb_end(flags)    spin_unlock_irqrestore(&pa_tlb_lock, flags)
 
 extern void flush_tlb_all(void);
 extern void flush_tlb_all_local(void *);
@@ -63,14 +61,16 @@ static inline void flush_tlb_mm(struct mm_struct *mm)
 static inline void flush_tlb_page(struct vm_area_struct *vma,
         unsigned long addr)
 {
+        unsigned long flags;
+
         /* For one page, it's not worth testing the split_tlb variable */
 
         mb();
         mtsp(vma->vm_mm->context,1);
-        purge_tlb_start();
+        purge_tlb_start(flags);
         pdtlb(addr);
         pitlb(addr);
-        purge_tlb_end();
+        purge_tlb_end(flags);
 }
 
 void __flush_tlb_range(unsigned long sid,
diff --git a/arch/parisc/include/asm/unistd.h b/arch/parisc/include/asm/unistd.h
index ef26b009dc5d..f3d3b8b012c4 100644
--- a/arch/parisc/include/asm/unistd.h
+++ b/arch/parisc/include/asm/unistd.h
@@ -807,8 +807,12 @@
 #define __NR_dup3               (__NR_Linux + 312)
 #define __NR_pipe2              (__NR_Linux + 313)
 #define __NR_inotify_init1      (__NR_Linux + 314)
+#define __NR_preadv             (__NR_Linux + 315)
+#define __NR_pwritev            (__NR_Linux + 316)
+#define __NR_rt_tgsigqueueinfo  (__NR_Linux + 317)
+#define __NR_perf_counter_open  (__NR_Linux + 318)
 
-#define __NR_Linux_syscalls     (__NR_inotify_init1 + 1)
+#define __NR_Linux_syscalls     (__NR_perf_counter_open + 1)
 
 
 #define __IGNORE_select         /* newselect */
diff --git a/arch/parisc/kernel/cache.c b/arch/parisc/kernel/cache.c
index 837530ea32e7..b6ed34de14e1 100644
--- a/arch/parisc/kernel/cache.c
+++ b/arch/parisc/kernel/cache.c
@@ -1,5 +1,4 @@
-/* $Id: cache.c,v 1.4 2000/01/25 00:11:38 prumpf Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
@@ -398,12 +397,13 @@ EXPORT_SYMBOL(flush_kernel_icache_range_asm);
 
 void clear_user_page_asm(void *page, unsigned long vaddr)
 {
+        unsigned long flags;
         /* This function is implemented in assembly in pacache.S */
         extern void __clear_user_page_asm(void *page, unsigned long vaddr);
 
-        purge_tlb_start();
+        purge_tlb_start(flags);
         __clear_user_page_asm(page, vaddr);
-        purge_tlb_end();
+        purge_tlb_end(flags);
 }
 
 #define FLUSH_THRESHOLD 0x80000 /* 0.5MB */
@@ -444,20 +444,24 @@ extern void clear_user_page_asm(void *page, unsigned long vaddr);
 
 void clear_user_page(void *page, unsigned long vaddr, struct page *pg)
 {
+        unsigned long flags;
+
         purge_kernel_dcache_page((unsigned long)page);
-        purge_tlb_start();
+        purge_tlb_start(flags);
         pdtlb_kernel(page);
-        purge_tlb_end();
+        purge_tlb_end(flags);
         clear_user_page_asm(page, vaddr);
 }
 EXPORT_SYMBOL(clear_user_page);
 
 void flush_kernel_dcache_page_addr(void *addr)
 {
+        unsigned long flags;
+
         flush_kernel_dcache_page_asm(addr);
-        purge_tlb_start();
+        purge_tlb_start(flags);
         pdtlb_kernel(addr);
-        purge_tlb_end();
+        purge_tlb_end(flags);
 }
 EXPORT_SYMBOL(flush_kernel_dcache_page_addr);
 
@@ -490,8 +494,10 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
         if (npages >= 512)  /* 2MB of space: arbitrary, should be tuned */
                 flush_tlb_all();
         else {
+                unsigned long flags;
+
                 mtsp(sid, 1);
-                purge_tlb_start();
+                purge_tlb_start(flags);
                 if (split_tlb) {
                         while (npages--) {
                                 pdtlb(start);
@@ -504,7 +510,7 @@ void __flush_tlb_range(unsigned long sid, unsigned long start,
                                 start += PAGE_SIZE;
                         }
                 }
-                purge_tlb_end();
+                purge_tlb_end(flags);
         }
 }
 
diff --git a/arch/parisc/kernel/inventory.c b/arch/parisc/kernel/inventory.c
index bd1f7f1ff74e..d228d8237879 100644
--- a/arch/parisc/kernel/inventory.c
+++ b/arch/parisc/kernel/inventory.c
@@ -170,23 +170,27 @@ static void __init pagezero_memconfig(void)
 static int __init 
 pat_query_module(ulong pcell_loc, ulong mod_index)
 {
-        pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+        pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
         unsigned long bytecnt;
         unsigned long temp;     /* 64-bit scratch value */
         long status;            /* PDC return value status */
         struct parisc_device *dev;
 
+        pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
+        if (!pa_pdc_cell)
+                panic("couldn't allocate memory for PDC_PAT_CELL!");
+
         /* return cell module (PA or Processor view) */
         status = pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
-                                     PA_VIEW, &pa_pdc_cell);
+                                     PA_VIEW, pa_pdc_cell);
 
         if (status != PDC_OK) {
                 /* no more cell modules or error */
                 return status;
         }
 
-        temp = pa_pdc_cell.cba;
-        dev = alloc_pa_dev(PAT_GET_CBA(temp), &pa_pdc_cell.mod_path);
+        temp = pa_pdc_cell->cba;
+        dev = alloc_pa_dev(PAT_GET_CBA(temp), &(pa_pdc_cell->mod_path));
         if (!dev) {
                 return PDC_OK;
         }
@@ -203,8 +207,8 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
         /* save generic info returned from the call */
         /* REVISIT: who is the consumer of this? not sure yet... */
-        dev->mod_info = pa_pdc_cell.mod_info;   /* pass to PAT_GET_ENTITY() */
-        dev->pmod_loc = pa_pdc_cell.mod_location;
+        dev->mod_info = pa_pdc_cell->mod_info;  /* pass to PAT_GET_ENTITY() */
+        dev->pmod_loc = pa_pdc_cell->mod_location;
 
         register_parisc_device(dev);    /* advertise device */
 
@@ -216,14 +220,14 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
 
         case PAT_ENTITY_PROC:
                 printk(KERN_DEBUG "PAT_ENTITY_PROC: id_eid 0x%lx\n",
-                        pa_pdc_cell.mod[0]);
+                        pa_pdc_cell->mod[0]);
                 break;
 
         case PAT_ENTITY_MEM:
                 printk(KERN_DEBUG 
                         "PAT_ENTITY_MEM: amount 0x%lx min_gni_base 0x%lx min_gni_len 0x%lx\n",
-                        pa_pdc_cell.mod[0], pa_pdc_cell.mod[1], 
-                        pa_pdc_cell.mod[2]);
+                        pa_pdc_cell->mod[0], pa_pdc_cell->mod[1],
+                        pa_pdc_cell->mod[2]);
                 break;
         case PAT_ENTITY_CA:
                 printk(KERN_DEBUG "PAT_ENTITY_CA: %ld\n", pcell_loc);
@@ -243,23 +247,26 @@ pat_query_module(ulong pcell_loc, ulong mod_index)
  print_ranges:
                 pdc_pat_cell_module(&bytecnt, pcell_loc, mod_index,
                                     IO_VIEW, &io_pdc_cell);
-                printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell.mod[1]);
-                for (i = 0; i < pa_pdc_cell.mod[1]; i++) {
+                printk(KERN_DEBUG "ranges %ld\n", pa_pdc_cell->mod[1]);
+                for (i = 0; i < pa_pdc_cell->mod[1]; i++) {
                         printk(KERN_DEBUG 
                                 "  PA_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-                                i, pa_pdc_cell.mod[2 + i * 3],  /* type */
-                                pa_pdc_cell.mod[3 + i * 3],     /* start */
-                                pa_pdc_cell.mod[4 + i * 3]);    /* finish (ie end) */
+                                i, pa_pdc_cell->mod[2 + i * 3], /* type */
+                                pa_pdc_cell->mod[3 + i * 3],    /* start */
+                                pa_pdc_cell->mod[4 + i * 3]);   /* finish (ie end) */
                         printk(KERN_DEBUG 
                                 "  IO_VIEW %ld: 0x%016lx 0x%016lx 0x%016lx\n", 
-                                i, io_pdc_cell.mod[2 + i * 3],  /* type */
-                                io_pdc_cell.mod[3 + i * 3],     /* start */
-                                io_pdc_cell.mod[4 + i * 3]);    /* finish (ie end) */
+                                i, io_pdc_cell->mod[2 + i * 3], /* type */
+                                io_pdc_cell->mod[3 + i * 3],    /* start */
+                                io_pdc_cell->mod[4 + i * 3]);   /* finish (ie end) */
                 }
                 printk(KERN_DEBUG "\n");
                 break;
         }
 #endif /* DEBUG_PAT */
+
+        kfree(pa_pdc_cell);
+
         return PDC_OK;
 }
 
diff --git a/arch/parisc/kernel/irq.c b/arch/parisc/kernel/irq.c
index 8007f1e65729..330f536a9324 100644
--- a/arch/parisc/kernel/irq.c
+++ b/arch/parisc/kernel/irq.c
@@ -120,7 +120,7 @@ int cpu_check_affinity(unsigned int irq, const struct cpumask *dest)
         if (CHECK_IRQ_PER_CPU(irq)) {
                 /* Bad linux design decision.  The mask has already
                  * been set; we must reset it */
-                cpumask_setall(&irq_desc[irq].affinity);
+                cpumask_setall(irq_desc[irq].affinity);
                 return -EINVAL;
         }
 
@@ -138,13 +138,13 @@ static int cpu_set_affinity_irq(unsigned int irq, const struct cpumask *dest)
         if (cpu_dest < 0)
                 return -1;
 
-        cpumask_copy(&irq_desc[irq].affinity, dest);
+        cpumask_copy(irq_desc[irq].affinity, dest);
 
         return 0;
 }
 #endif
 
-static struct hw_interrupt_type cpu_interrupt_type = {
+static struct irq_chip cpu_interrupt_type = {
         .typename       = "CPU",
         .startup        = cpu_startup_irq,
         .shutdown       = cpu_disable_irq,
@@ -299,7 +299,7 @@ int txn_alloc_irq(unsigned int bits_wide)
 unsigned long txn_affinity_addr(unsigned int irq, int cpu)
 {
 #ifdef CONFIG_SMP
-        cpumask_copy(&irq_desc[irq].affinity, cpumask_of(cpu));
+        cpumask_copy(irq_desc[irq].affinity, cpumask_of(cpu));
 #endif
 
         return per_cpu(cpu_data, cpu).txn_addr;
@@ -356,7 +356,7 @@ void do_cpu_irq_mask(struct pt_regs *regs)
         irq = eirr_to_irq(eirr_val);
 
 #ifdef CONFIG_SMP
-        cpumask_copy(&dest, &irq_desc[irq].affinity);
+        cpumask_copy(&dest, irq_desc[irq].affinity);
         if (CHECK_IRQ_PER_CPU(irq_desc[irq].status) &&
             !cpu_isset(smp_processor_id(), dest)) {
                 int cpu = first_cpu(dest);
diff --git a/arch/parisc/kernel/pci-dma.c b/arch/parisc/kernel/pci-dma.c
index 7d927eac932b..c07f618ff7da 100644
--- a/arch/parisc/kernel/pci-dma.c
+++ b/arch/parisc/kernel/pci-dma.c
@@ -90,12 +90,14 @@ static inline int map_pte_uncached(pte_t * pte,
         if (end > PMD_SIZE)
                 end = PMD_SIZE;
         do {
+                unsigned long flags;
+
                 if (!pte_none(*pte))
                         printk(KERN_ERR "map_pte_uncached: page already exists\n");
                 set_pte(pte, __mk_pte(*paddr_ptr, PAGE_KERNEL_UNC));
-                purge_tlb_start();
+                purge_tlb_start(flags);
                 pdtlb_kernel(orig_vaddr);
-                purge_tlb_end();
+                purge_tlb_end(flags);
                 vaddr += PAGE_SIZE;
                 orig_vaddr += PAGE_SIZE;
                 (*paddr_ptr) += PAGE_SIZE;
@@ -168,11 +170,13 @@ static inline void unmap_uncached_pte(pmd_t * pmd, unsigned long vaddr,
         if (end > PMD_SIZE)
                 end = PMD_SIZE;
         do {
+                unsigned long flags;
                 pte_t page = *pte;
+
                 pte_clear(&init_mm, vaddr, pte);
-                purge_tlb_start();
+                purge_tlb_start(flags);
                 pdtlb_kernel(orig_vaddr);
-                purge_tlb_end();
+                purge_tlb_end(flags);
                 vaddr += PAGE_SIZE;
                 orig_vaddr += PAGE_SIZE;
                 pte++;
diff --git a/arch/parisc/kernel/pci.c b/arch/parisc/kernel/pci.c
index 6936386c9861..f7064abc3bb6 100644
--- a/arch/parisc/kernel/pci.c
+++ b/arch/parisc/kernel/pci.c
@@ -1,5 +1,4 @@
-/* $Id: pci.c,v 1.6 2000/01/29 00:12:05 grundler Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
diff --git a/arch/parisc/kernel/process.c b/arch/parisc/kernel/process.c
index 61c07078c072..1f3aa8db0203 100644
--- a/arch/parisc/kernel/process.c
+++ b/arch/parisc/kernel/process.c
@@ -156,7 +156,7 @@ void machine_power_off(void)
          * software. The user has to press the button himself. */
 
         printk(KERN_EMERG "System shut down completed.\n"
-               KERN_EMERG "Please power this system off now.");
+               "Please power this system off now.");
 }
 
 void (*pm_power_off)(void) = machine_power_off;
diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c
index e09d0f7fb6b0..c8fb61ed32f4 100644
--- a/arch/parisc/kernel/processor.c
+++ b/arch/parisc/kernel/processor.c
@@ -1,5 +1,4 @@
-/*    $Id: processor.c,v 1.1 2002/07/20 16:27:06 rhirst Exp $
- *
+/*
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
@@ -121,22 +120,28 @@ static int __cpuinit processor_probe(struct parisc_device *dev)
         if (is_pdc_pat()) {
                 ulong status;
                 unsigned long bytecnt;
-                pdc_pat_cell_mod_maddr_block_t pa_pdc_cell;
+                pdc_pat_cell_mod_maddr_block_t *pa_pdc_cell;
 #undef USE_PAT_CPUID
 #ifdef USE_PAT_CPUID
                 struct pdc_pat_cpu_num cpu_info;
 #endif
 
+                pa_pdc_cell = kmalloc(sizeof (*pa_pdc_cell), GFP_KERNEL);
+                if (!pa_pdc_cell)
+                        panic("couldn't allocate memory for PDC_PAT_CELL!");
+
                 status = pdc_pat_cell_module(&bytecnt, dev->pcell_loc,
-                        dev->mod_index, PA_VIEW, &pa_pdc_cell);
+                        dev->mod_index, PA_VIEW, pa_pdc_cell);
 
                 BUG_ON(PDC_OK != status);
 
                 /* verify it's the same as what do_pat_inventory() found */
-                BUG_ON(dev->mod_info != pa_pdc_cell.mod_info);
-                BUG_ON(dev->pmod_loc != pa_pdc_cell.mod_location);
+                BUG_ON(dev->mod_info != pa_pdc_cell->mod_info);
+                BUG_ON(dev->pmod_loc != pa_pdc_cell->mod_location);
+
+                txn_addr = pa_pdc_cell->mod[0];   /* id_eid for IO sapic */
 
-                txn_addr = pa_pdc_cell.mod[0];   /* id_eid for IO sapic */
+                kfree(pa_pdc_cell);
 
 #ifdef USE_PAT_CPUID
 /* We need contiguous numbers for cpuid. Firmware's notion
diff --git a/arch/parisc/kernel/setup.c b/arch/parisc/kernel/setup.c
index 82131ca8e05c..cb71f3dac995 100644
--- a/arch/parisc/kernel/setup.c
+++ b/arch/parisc/kernel/setup.c
@@ -1,5 +1,4 @@
-/*    $Id: setup.c,v 1.8 2000/02/02 04:42:38 prumpf Exp $
- *
+/*
  *    Initial setup-routines for HP 9000 based hardware.
  *
  *    Copyright (C) 1991, 1992, 1995  Linus Torvalds
diff --git a/arch/parisc/kernel/sys_parisc32.c b/arch/parisc/kernel/sys_parisc32.c
index 1adb40c81669..92a0acaa0d12 100644
--- a/arch/parisc/kernel/sys_parisc32.c
+++ b/arch/parisc/kernel/sys_parisc32.c
@@ -174,68 +174,6 @@ asmlinkage long sys32_sched_rr_get_interval(pid_t pid,
         return ret;
 }
 
-/*** copied from mips64 ***/
-/*
- * Ooo, nasty.  We need here to frob 32-bit unsigned longs to
- * 64-bit unsigned longs.
- */
-
-static inline int
-get_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
-        n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
-        if (ufdset) {
-                unsigned long odd;
-
-                if (!access_ok(VERIFY_WRITE, ufdset, n*sizeof(u32)))
-                        return -EFAULT;
-
-                odd = n & 1UL;
-                n &= ~1UL;
-                while (n) {
-                        unsigned long h, l;
-                        __get_user(l, ufdset);
-                        __get_user(h, ufdset+1);
-                        ufdset += 2;
-                        *fdset++ = h << 32 | l;
-                        n -= 2;
-                }
-                if (odd)
-                        __get_user(*fdset, ufdset);
-        } else {
-                /* Tricky, must clear full unsigned long in the
-                 * kernel fdset at the end, this makes sure that
-                 * actually happens.
-                 */
-                memset(fdset, 0, ((n + 1) & ~1)*sizeof(u32));
-        }
-        return 0;
-}
-
-static inline void
-set_fd_set32(unsigned long n, u32 *ufdset, unsigned long *fdset)
-{
-        unsigned long odd;
-        n = (n + 8*sizeof(u32) - 1) / (8*sizeof(u32));
-
-        if (!ufdset)
-                return;
-
-        odd = n & 1UL;
-        n &= ~1UL;
-        while (n) {
-                unsigned long h, l;
-                l = *fdset++;
-                h = l >> 32;
-                __put_user(l, ufdset);
-                __put_user(h, ufdset+1);
-                ufdset += 2;
-                n -= 2;
-        }
-        if (odd)
-                __put_user(*fdset, ufdset);
-}
-
 struct msgbuf32 {
     int mtype;
     char mtext[1];
diff --git a/arch/parisc/kernel/syscall_table.S b/arch/parisc/kernel/syscall_table.S
index 03b9a01bc16c..cf145eb026b3 100644
--- a/arch/parisc/kernel/syscall_table.S
+++ b/arch/parisc/kernel/syscall_table.S
@@ -413,6 +413,10 @@
         ENTRY_SAME(dup3)
         ENTRY_SAME(pipe2)
         ENTRY_SAME(inotify_init1)
+        ENTRY_COMP(preadv)              /* 315 */
+        ENTRY_COMP(pwritev)
+        ENTRY_COMP(rt_tgsigqueueinfo)
+        ENTRY_SAME(perf_counter_open)
 
         /* Nothing yet */
 
diff --git a/arch/parisc/kernel/time.c b/arch/parisc/kernel/time.c
index d4dd05674c62..a79c6f9e7e2c 100644
--- a/arch/parisc/kernel/time.c
+++ b/arch/parisc/kernel/time.c
@@ -56,9 +56,9 @@ static unsigned long clocktick __read_mostly;	/* timer cycles per tick */
  */
 irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 {
-        unsigned long now;
+        unsigned long now, now2;
         unsigned long next_tick;
-        unsigned long cycles_elapsed, ticks_elapsed;
+        unsigned long cycles_elapsed, ticks_elapsed = 1;
         unsigned long cycles_remainder;
         unsigned int cpu = smp_processor_id();
         struct cpuinfo_parisc *cpuinfo = &per_cpu(cpu_data, cpu);
@@ -71,44 +71,24 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
         /* Initialize next_tick to the expected tick time. */
         next_tick = cpuinfo->it_value;
 
-        /* Get current interval timer.
-         * CR16 reads as 64 bits in CPU wide mode.
-         * CR16 reads as 32 bits in CPU narrow mode.
-         */
+        /* Get current cycle counter (Control Register 16). */
         now = mfctl(16);
 
         cycles_elapsed = now - next_tick;
 
-        if ((cycles_elapsed >> 5) < cpt) {
+        if ((cycles_elapsed >> 6) < cpt) {
                 /* use "cheap" math (add/subtract) instead
                  * of the more expensive div/mul method
                  */
                 cycles_remainder = cycles_elapsed;
-                ticks_elapsed = 1;
                 while (cycles_remainder > cpt) {
                         cycles_remainder -= cpt;
                         ticks_elapsed++;
                 }
         } else {
+                /* TODO: Reduce this to one fdiv op */
                 cycles_remainder = cycles_elapsed % cpt;
-                ticks_elapsed = 1 + cycles_elapsed / cpt;
-        }
-
-        /* Can we differentiate between "early CR16" (aka Scenario 1) and
-         * "long delay" (aka Scenario 3)? I don't think so.
-         *
-         * We expected timer_interrupt to be delivered at least a few hundred
-         * cycles after the IT fires. But it's arbitrary how much time passes
-         * before we call it "late". I've picked one second.
-         */
-        if (unlikely(ticks_elapsed > HZ)) {
-                /* Scenario 3: very long delay?  bad in any case */
-                printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
-                        " cycles %lX rem %lX "
-                        " next/now %lX/%lX\n",
-                        cpu,
-                        cycles_elapsed, cycles_remainder,
-                        next_tick, now );
+                ticks_elapsed += cycles_elapsed / cpt;
         }
 
         /* convert from "division remainder" to "remainder of clock tick" */
@@ -122,18 +102,56 @@ irqreturn_t __irq_entry timer_interrupt(int irq, void *dev_id)
 
         cpuinfo->it_value = next_tick;
 
-        /* Skip one clocktick on purpose if we are likely to miss next_tick.
-         * We want to avoid the new next_tick being less than CR16.
-         * If that happened, itimer wouldn't fire until CR16 wrapped.
-         * We'll catch the tick we missed on the tick after that.
+        /* Program the IT when to deliver the next interrupt.
+         * Only bottom 32-bits of next_tick are writable in CR16!
          */
-        if (!(cycles_remainder >> 13))
-                next_tick += cpt;
-
-        /* Program the IT when to deliver the next interrupt. */
-        /* Only bottom 32-bits of next_tick are written to cr16.  */
         mtctl(next_tick, 16);
 
+        /* Skip one clocktick on purpose if we missed next_tick.
+         * The new CR16 must be "later" than current CR16 otherwise
+         * itimer would not fire until CR16 wrapped - e.g 4 seconds
+         * later on a 1Ghz processor. We'll account for the missed
+         * tick on the next timer interrupt.
+         *
+         * "next_tick - now" will always give the difference regardless
+         * if one or the other wrapped. If "now" is "bigger" we'll end up
+         * with a very large unsigned number.
+         */
+        now2 = mfctl(16);
+        if (next_tick - now2 > cpt)
+                mtctl(next_tick+cpt, 16);
+
+#if 1
+/*
+ * GGG: DEBUG code for how many cycles programming CR16 used.
+ */
+        if (unlikely(now2 - now > 0x3000))      /* 12K cycles */
+                printk (KERN_CRIT "timer_interrupt(CPU %d): SLOW! 0x%lx cycles!"
+                        " cyc %lX rem %lX "
+                        " next/now %lX/%lX\n",
+                        cpu, now2 - now, cycles_elapsed, cycles_remainder,
+                        next_tick, now );
+#endif
+
+        /* Can we differentiate between "early CR16" (aka Scenario 1) and
+         * "long delay" (aka Scenario 3)? I don't think so.
+         *
+         * Timer_interrupt will be delivered at least a few hundred cycles
+         * after the IT fires. But it's arbitrary how much time passes
+         * before we call it "late". I've picked one second.
+         *
+         * It's important NO printk's are between reading CR16 and
+         * setting up the next value. May introduce huge variance.
+         */
+        if (unlikely(ticks_elapsed > HZ)) {
+                /* Scenario 3: very long delay?  bad in any case */
+                printk (KERN_CRIT "timer_interrupt(CPU %d): delayed!"
+                        " cycles %lX rem %lX "
+                        " next/now %lX/%lX\n",
+                        cpu,
+                        cycles_elapsed, cycles_remainder,
+                        next_tick, now );
+        }
 
         /* Done mucking with unreliable delivery of interrupts.
          * Go do system house keeping.
@@ -173,7 +191,7 @@ EXPORT_SYMBOL(profile_pc);
 
 /* clock source code */
 
-static cycle_t read_cr16(void)
+static cycle_t read_cr16(struct clocksource *cs)
 {
         return get_cycles();
 }
diff --git a/arch/parisc/kernel/traps.c b/arch/parisc/kernel/traps.c
index c32f5d6d778e..528f0ff9b273 100644
--- a/arch/parisc/kernel/traps.c
+++ b/arch/parisc/kernel/traps.c
@@ -250,15 +250,14 @@ void die_if_kernel(char *str, struct pt_regs *regs, long err)
         oops_enter();
 
         /* Amuse the user in a SPARC fashion */
-        if (err) printk(
-KERN_CRIT "      _______________________________ \n"
-KERN_CRIT "     < Your System ate a SPARC! Gah! >\n"
-KERN_CRIT "      ------------------------------- \n"
-KERN_CRIT "             \\   ^__^\n"
-KERN_CRIT "              \\  (xx)\\_______\n"
-KERN_CRIT "                 (__)\\       )\\/\\\n"
-KERN_CRIT "                  U  ||----w |\n"
-KERN_CRIT "                     ||     ||\n");
+        if (err) printk(KERN_CRIT
+                        "      _______________________________ \n"
+                        "     < Your System ate a SPARC! Gah! >\n"
+                        "      ------------------------------- \n"
+                        "             \\   ^__^\n"
+                        "                 (__)\\       )\\/\\\n"
+                        "                  U  ||----w |\n"
+                        "                     ||     ||\n");
         
         /* unlock the pdc lock if necessary */
         pdc_emergency_unlock();
@@ -797,7 +796,8 @@ void notrace handle_interruption(int code, struct pt_regs *regs)
                 else
                         printk(KERN_DEBUG "User Fault (long pointer) (fault %d) ",
                                code);
-                printk("pid=%d command='%s'\n", task_pid_nr(current), current->comm);
+                printk(KERN_CONT "pid=%d command='%s'\n",
+                       task_pid_nr(current), current->comm);
                 show_regs(regs);
 #endif
                 si.si_signo = SIGSEGV;
diff --git a/arch/parisc/lib/checksum.c b/arch/parisc/lib/checksum.c
index 462696d30d3b..ae66d31f9ecf 100644
--- a/arch/parisc/lib/checksum.c
+++ b/arch/parisc/lib/checksum.c
@@ -13,8 +13,6 @@
  *              modify it under the terms of the GNU General Public License
  *              as published by the Free Software Foundation; either version
  *              2 of the License, or (at your option) any later version.
- *
- * $Id: checksum.c,v 1.3 1997/12/01 17:57:34 ralf Exp $
  */
 #include <linux/module.h>
 #include <linux/types.h>
diff --git a/arch/parisc/lib/memcpy.c b/arch/parisc/lib/memcpy.c
index bbda909c866e..abf41f4632a9 100644
--- a/arch/parisc/lib/memcpy.c
+++ b/arch/parisc/lib/memcpy.c
@@ -405,7 +405,7 @@ byte_copy:
 
 unaligned_copy:
         /* possibly we are aligned on a word, but not on a double... */
-        if (likely(t1 & (sizeof(unsigned int)-1)) == 0) {
+        if (likely((t1 & (sizeof(unsigned int)-1)) == 0)) {
                 t2 = src & (sizeof(unsigned int) - 1);
 
                 if (unlikely(t2 != 0)) {
diff --git a/arch/parisc/math-emu/decode_exc.c b/arch/parisc/math-emu/decode_exc.c
index 66c8a9f6a27e..3ca1c6149218 100644
--- a/arch/parisc/math-emu/decode_exc.c
+++ b/arch/parisc/math-emu/decode_exc.c
@@ -40,7 +40,7 @@
  * END_DESC
 */
 
-
+#include <linux/kernel.h>
 #include "float.h"
 #include "sgl_float.h"
 #include "dbl_float.h"
diff --git a/arch/parisc/mm/fault.c b/arch/parisc/mm/fault.c
index bfb6dd6ab380..c6afbfc95770 100644
--- a/arch/parisc/mm/fault.c
+++ b/arch/parisc/mm/fault.c
@@ -1,5 +1,4 @@
-/* $Id: fault.c,v 1.5 2000/01/26 16:20:29 jsm Exp $
- *
+/*
  * This file is subject to the terms and conditions of the GNU General Public
  * License.  See the file "COPYING" in the main directory of this archive
  * for more details.
diff --git a/arch/parisc/mm/init.c b/arch/parisc/mm/init.c
index 4356ceb1e366..b0831d9e35cb 100644
--- a/arch/parisc/mm/init.c
+++ b/arch/parisc/mm/init.c
@@ -370,34 +370,22 @@ static void __init setup_bootmem(void)
 
 void free_initmem(void)
 {
-        unsigned long addr, init_begin, init_end;
-
-        printk(KERN_INFO "Freeing unused kernel memory: ");
+        unsigned long addr;
+        unsigned long init_begin = (unsigned long)__init_begin;
+        unsigned long init_end = (unsigned long)__init_end;
 
 #ifdef CONFIG_DEBUG_KERNEL
         /* Attempt to catch anyone trying to execute code here
          * by filling the page with BRK insns.
-         * 
-         * If we disable interrupts for all CPUs, then IPI stops working.
-         * Kinda breaks the global cache flushing.
          */
-        local_irq_disable();
-
-        memset(__init_begin, 0x00,
-                (unsigned long)__init_end - (unsigned long)__init_begin);
-
-        flush_data_cache();
-        asm volatile("sync" : : );
-        flush_icache_range((unsigned long)__init_begin, (unsigned long)__init_end);
-        asm volatile("sync" : : );
-
-        local_irq_enable();
+        memset((void *)init_begin, 0x00, init_end - init_begin);
+        flush_icache_range(init_begin, init_end);
 #endif
         
         /* align __init_begin and __init_end to page size,
            ignoring linker script where we might have tried to save RAM */
-        init_begin = PAGE_ALIGN((unsigned long)(__init_begin));
-        init_end   = PAGE_ALIGN((unsigned long)(__init_end));
+        init_begin = PAGE_ALIGN(init_begin);
+        init_end = PAGE_ALIGN(init_end);
         for (addr = init_begin; addr < init_end; addr += PAGE_SIZE) {
                 ClearPageReserved(virt_to_page(addr));
                 init_page_count(virt_to_page(addr));
@@ -409,7 +397,8 @@ void free_initmem(void)
         /* set up a new led state on systems shipped LED State panel */
         pdc_chassis_send_status(PDC_CHASSIS_DIRECT_BCOMPLETE);
         
-        printk("%luk freed\n", (init_end - init_begin) >> 10);
+        printk(KERN_INFO "Freeing unused kernel memory: %luk freed\n",
+                (init_end - init_begin) >> 10);
 }