Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6:
  sh: Fix stacktrace simplification fallout.
  sh: SH7760 DMABRG support.
  sh: clockevent/clocksource/hrtimers/nohz TMU support.
  sh: Truncate MAX_ACTIVE_REGIONS for the common case.
  rtc: rtc-sh: Fix rtc_dev pointer for rtc_update_irq().
  sh: Convert to common die chain.
  sh: Wire up utimensat syscall.
  sh: landisk mv_nr_irqs definition.
  sh: Fixup ndelay() xloops calculation for alternate HZ.
  sh: Add 32-bit opcode feature CPU flag.
  sh: Fix PC adjustments for varying opcode length.
  sh: Support for SH-2A 32-bit opcodes.
  sh: Kill off redundant __div64_32 symbol export.
  sh: Share exception vector table for SH-3/4.
  sh: Always define TRAPA_BUG_OPCODE.
  sh: __GFP_REPEAT for pte allocations, too.
  rtc: rtc-sh: Fix up dev_dbg() warnings.
  sh: generic quicklist support.

8 files changed, 72 insertions, 64 deletions

diff --git a/include/asm-sh/bug.h b/include/asm-sh/bug.h
index 794c36d..46f925c 100644
--- a/include/asm-sh/bug.h
+++ b/include/asm-sh/bug.h
@@ -1,12 +1,12 @@
 #ifndef __ASM_SH_BUG_H
 #define __ASM_SH_BUG_H
 
+#define TRAPA_BUG_OPCODE	0xc33e	/* trapa #0x3e */
+
 #ifdef CONFIG_BUG
 #define HAVE_ARCH_BUG
 #define HAVE_ARCH_WARN_ON
 
-#define TRAPA_BUG_OPCODE	0xc33e	/* trapa #0x3e */
-
 /**
  * _EMIT_BUG_ENTRY
  * %1 - __FILE__
diff --git a/include/asm-sh/cpu-features.h b/include/asm-sh/cpu-features.h
index 4bccd7c..86308aa 100644
--- a/include/asm-sh/cpu-features.h
+++ b/include/asm-sh/cpu-features.h
@@ -20,5 +20,6 @@
 #define CPU_HAS_PTEA		0x0020	/* PTEA register */
 #define CPU_HAS_LLSC		0x0040	/* movli.l/movco.l */
 #define CPU_HAS_L2_CACHE	0x0080	/* Secondary cache / URAM */
+#define CPU_HAS_OP32		0x0100	/* 32-bit instruction support */
 
 #endif /* __ASM_SH_CPU_FEATURES_H */
diff --git a/include/asm-sh/dmabrg.h b/include/asm-sh/dmabrg.h
new file mode 100644
index 0000000..c5edba2
--- /dev/null
+++ b/include/asm-sh/dmabrg.h
@@ -0,0 +1,23 @@
+/*
+ * SH7760 DMABRG (USB/Audio) support
+ */
+
+#ifndef _DMABRG_H_
+#define _DMABRG_H_
+
+/* IRQ sources */
+#define DMABRGIRQ_USBDMA	0
+#define DMABRGIRQ_USBDMAERR	1
+#define DMABRGIRQ_A0TXF		2
+#define DMABRGIRQ_A0TXH		3
+#define DMABRGIRQ_A0RXF		4
+#define DMABRGIRQ_A0RXH		5
+#define DMABRGIRQ_A1TXF		6
+#define DMABRGIRQ_A1TXH		7
+#define DMABRGIRQ_A1RXF		8
+#define DMABRGIRQ_A1RXH		9
+
+extern int dmabrg_request_irq(unsigned int, void(*)(void *), void *);
+extern void dmabrg_free_irq(unsigned int);
+
+#endif
diff --git a/include/asm-sh/kdebug.h b/include/asm-sh/kdebug.h
index 493c206..16578b7 100644
--- a/include/asm-sh/kdebug.h
+++ b/include/asm-sh/kdebug.h
@@ -2,20 +2,6 @@
 #define __ASM_SH_KDEBUG_H
 
 #include <linux/notifier.h>
-#include <asm-generic/kdebug.h>
-
-struct pt_regs;
-
-struct die_args {
-	struct pt_regs *regs;
-	int trapnr;
-};
-
-int register_die_notifier(struct notifier_block *nb);
-int unregister_die_notifier(struct notifier_block *nb);
-int register_page_fault_notifier(struct notifier_block *nb);
-int unregister_page_fault_notifier(struct notifier_block *nb);
-extern struct atomic_notifier_head shdie_chain;
 
 /* Grossly misnamed. */
 enum die_val {
@@ -23,14 +9,7 @@ enum die_val {
 	DIE_PAGE_FAULT,
 };
 
-static inline int notify_die(enum die_val val, struct pt_regs *regs,
-			     int trap, int sig)
-{
-	struct die_args args = {
-		.regs = regs,
-		.trapnr = trap,
-	};
+int register_page_fault_notifier(struct notifier_block *nb);
+int unregister_page_fault_notifier(struct notifier_block *nb);
 
-	return atomic_notifier_call_chain(&shdie_chain, val, &args);
-}
 #endif /* __ASM_SH_KDEBUG_H */
diff --git a/include/asm-sh/pgalloc.h b/include/asm-sh/pgalloc.h
index 888e452..18b613c 100644
--- a/include/asm-sh/pgalloc.h
+++ b/include/asm-sh/pgalloc.h
@@ -1,6 +1,12 @@
 #ifndef __ASM_SH_PGALLOC_H
 #define __ASM_SH_PGALLOC_H
 
+#include <linux/quicklist.h>
+#include <asm/page.h>
+
+#define QUICK_PGD 0	/* We preserve special mappings over free */
+#define QUICK_PT 1	/* Other page table pages that are zero on free */
+
 static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd,
 				       pte_t *pte)
 {
@@ -13,48 +19,49 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
 	set_pmd(pmd, __pmd((unsigned long)page_address(pte)));
 }
 
+static inline void pgd_ctor(void *x)
+{
+	pgd_t *pgd = x;
+
+	memcpy(pgd + USER_PTRS_PER_PGD,
+	       swapper_pg_dir + USER_PTRS_PER_PGD,
+	       (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
+}
+
 /*
  * Allocate and free page tables.
  */
 static inline pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT);
-
-	if (pgd) {
-		memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
-		memcpy(pgd + USER_PTRS_PER_PGD,
-		       swapper_pg_dir + USER_PTRS_PER_PGD,
-		       (PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
-	}
-
-	return pgd;
+	return quicklist_alloc(QUICK_PGD, GFP_KERNEL | __GFP_REPEAT, pgd_ctor);
 }
 
 static inline void pgd_free(pgd_t *pgd)
 {
-	free_page((unsigned long)pgd);
+	quicklist_free(QUICK_PGD, NULL, pgd);
 }
 
 static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
 					  unsigned long address)
 {
-	return (pte_t *)__get_free_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
+	return quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
 }
 
 static inline struct page *pte_alloc_one(struct mm_struct *mm,
 					 unsigned long address)
 {
-	return alloc_page(GFP_KERNEL | __GFP_REPEAT | __GFP_ZERO);
+	void *pg = quicklist_alloc(QUICK_PT, GFP_KERNEL | __GFP_REPEAT, NULL);
+	return pg ? virt_to_page(pg) : NULL;
 }
 
 static inline void pte_free_kernel(pte_t *pte)
 {
-	free_page((unsigned long)pte);
+	quicklist_free(QUICK_PT, NULL, pte);
 }
 
 static inline void pte_free(struct page *pte)
 {
-	__free_page(pte);
+	quicklist_free_page(QUICK_PT, NULL, pte);
 }
 
 #define __pte_free_tlb(tlb,pte) tlb_remove_page((tlb),(pte))
@@ -66,6 +73,11 @@ static inline void pte_free(struct page *pte)
 
 #define pmd_free(x)			do { } while (0)
 #define __pmd_free_tlb(tlb,x)		do { } while (0)
-#define check_pgt_cache()		do { } while (0)
+
+static inline void check_pgt_cache(void)
+{
+	quicklist_trim(QUICK_PGD, NULL, 25, 16);
+	quicklist_trim(QUICK_PT, NULL, 25, 16);
+}
 
 #endif /* __ASM_SH_PGALLOC_H */
diff --git a/include/asm-sh/system.h b/include/asm-sh/system.h
index e7e96ee..82f3e22 100644
--- a/include/asm-sh/system.h
+++ b/include/asm-sh/system.h
@@ -255,6 +255,15 @@ static inline void *set_exception_table_evt(unsigned int evt, void *handler)
 	return set_exception_table_vec(evt >> 5, handler);
 }
 
+/*
+ * SH-2A has both 16 and 32-bit opcodes, do lame encoding checks.
+ */
+#ifdef CONFIG_CPU_SH2A
+extern unsigned int instruction_size(unsigned int insn);
+#else
+#define instruction_size(insn)	(2)
+#endif
+
 /* XXX
  * disable hlt during certain critical i/o operations
  */
diff --git a/include/asm-sh/timer.h b/include/asm-sh/timer.h
index 17b5e76..701ba84 100644
--- a/include/asm-sh/timer.h
+++ b/include/asm-sh/timer.h
@@ -2,12 +2,14 @@
 #define __ASM_SH_TIMER_H
 
 #include <linux/sysdev.h>
+#include <linux/clocksource.h>
 #include <asm/cpu/timer.h>
 
 struct sys_timer_ops {
 	int (*init)(void);
 	int (*start)(void);
 	int (*stop)(void);
+	cycle_t (*read)(void);
 #ifndef CONFIG_GENERIC_TIME
 	unsigned long (*get_offset)(void);
 #endif
@@ -18,29 +20,8 @@ struct sys_timer {
 
 	struct sys_device	dev;
 	struct sys_timer_ops	*ops;
-
-#ifdef CONFIG_NO_IDLE_HZ
-	struct dyn_tick_timer	*dyn_tick;
-#endif
 };
 
-#ifdef CONFIG_NO_IDLE_HZ
-#define DYN_TICK_ENABLED	(1 << 1)
-
-struct dyn_tick_timer {
-	spinlock_t	lock;
-	unsigned int	state;			/* Current state */
-	int		(*enable)(void);	/* Enables dynamic tick */
-	int		(*disable)(void);	/* Disables dynamic tick */
-	void		(*reprogram)(unsigned long); /* Reprograms the timer */
-	int		(*handler)(int, void *);
-};
-
-void timer_dyn_reprogram(void);
-#else
-#define timer_dyn_reprogram()	do { } while (0)
-#endif
-
 #define TICK_SIZE (tick_nsec / 1000)
 
 extern struct sys_timer tmu_timer, cmt_timer, mtu2_timer;
@@ -58,5 +39,7 @@ struct sys_timer *get_sys_timer(void);
 
 /* arch/sh/kernel/time.c */
 void handle_timer_tick(void);
+extern unsigned long sh_hpt_frequency;
+extern struct clocksource clocksource_sh;
 
 #endif /* __ASM_SH_TIMER_H */
diff --git a/include/asm-sh/unistd.h b/include/asm-sh/unistd.h
index 49be50a..af71e37 100644
--- a/include/asm-sh/unistd.h
+++ b/include/asm-sh/unistd.h
@@ -85,7 +85,7 @@
 #define __NR_sigpending		 73
 #define __NR_sethostname	 74
 #define __NR_setrlimit		 75
-#define __NR_getrlimit	 	 76	/* Back compatible 2Gig limited rlimit */
+#define __NR_getrlimit		 76	/* Back compatible 2Gig limited rlimit */
 #define __NR_getrusage		 77
 #define __NR_gettimeofday	 78
 #define __NR_settimeofday	 79
@@ -328,8 +328,9 @@
 #define __NR_move_pages		317
 #define __NR_getcpu		318
 #define __NR_epoll_pwait	319
+#define __NR_utimensat		320
 
-#define NR_syscalls 320
+#define NR_syscalls 321
 
 #ifdef __KERNEL__