Merge commit 'v2.6.28-rc1' into sched/urgent

57 files changed, 2025 insertions, 473 deletions

diff --git a/arch/sh/include/asm/bitops-llsc.h b/arch/sh/include/asm/bitops-llsc.h
new file mode 100644
index 00000000000..43b8e1a8239
--- /dev/null
+++ b/arch/sh/include/asm/bitops-llsc.h
@@ -0,0 +1,144 @@
+#ifndef __ASM_SH_BITOPS_LLSC_H
+#define __ASM_SH_BITOPS_LLSC_H
+
+static inline void set_bit(int nr, volatile void * addr)
+{
+	int	mask;
+	volatile unsigned int *a = addr;
+	unsigned long tmp;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%1, %0	! set_bit		\n\t"
+		"or		%3, %0				\n\t"
+		"movco.l	%0, @%1				\n\t"
+		"bf		1b				\n\t"
+		: "=&z" (tmp), "=r" (a)
+		: "1" (a), "r" (mask)
+		: "t", "memory"
+	);
+}
+
+static inline void clear_bit(int nr, volatile void * addr)
+{
+	int	mask;
+	volatile unsigned int *a = addr;
+	unsigned long tmp;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%1, %0	! clear_bit		\n\t"
+		"and		%3, %0				\n\t"
+		"movco.l	%0, @%1				\n\t"
+		"bf		1b				\n\t"
+		: "=&z" (tmp), "=r" (a)
+		: "1" (a), "r" (~mask)
+		: "t", "memory"
+	);
+}
+
+static inline void change_bit(int nr, volatile void * addr)
+{
+	int	mask;
+	volatile unsigned int *a = addr;
+	unsigned long tmp;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%1, %0	! change_bit		\n\t"
+		"xor		%3, %0				\n\t"
+		"movco.l	%0, @%1				\n\t"
+		"bf		1b				\n\t"
+		: "=&z" (tmp), "=r" (a)
+		: "1" (a), "r" (mask)
+		: "t", "memory"
+	);
+}
+
+static inline int test_and_set_bit(int nr, volatile void * addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = addr;
+	unsigned long tmp;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%1, %0	! test_and_set_bit	\n\t"
+		"mov		%0, %2				\n\t"
+		"or		%4, %0				\n\t"
+		"movco.l	%0, @%1				\n\t"
+		"bf		1b				\n\t"
+		"and		%4, %2				\n\t"
+		: "=&z" (tmp), "=r" (a), "=&r" (retval)
+		: "1" (a), "r" (mask)
+		: "t", "memory"
+	);
+
+	return retval != 0;
+}
+
+static inline int test_and_clear_bit(int nr, volatile void * addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = addr;
+	unsigned long tmp;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%1, %0	! test_and_clear_bit	\n\t"
+		"mov		%0, %2				\n\t"
+		"and		%5, %0				\n\t"
+		"movco.l	%0, @%1				\n\t"
+		"bf		1b				\n\t"
+		"and		%4, %2				\n\t"
+		"synco						\n\t"
+		: "=&z" (tmp), "=r" (a), "=&r" (retval)
+		: "1" (a), "r" (mask), "r" (~mask)
+		: "t", "memory"
+	);
+
+	return retval != 0;
+}
+
+static inline int test_and_change_bit(int nr, volatile void * addr)
+{
+	int	mask, retval;
+	volatile unsigned int *a = addr;
+	unsigned long tmp;
+
+	a += nr >> 5;
+	mask = 1 << (nr & 0x1f);
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%1, %0	! test_and_change_bit	\n\t"
+		"mov		%0, %2				\n\t"
+		"xor		%4, %0				\n\t"
+		"movco.l	%0, @%1				\n\t"
+		"bf		1b				\n\t"
+		"and		%4, %2				\n\t"
+		"synco						\n\t"
+		: "=&z" (tmp), "=r" (a), "=&r" (retval)
+		: "1" (a), "r" (mask)
+		: "t", "memory"
+	);
+
+	return retval != 0;
+}
+
+#endif /* __ASM_SH_BITOPS_LLSC_H */
diff --git a/arch/sh/include/asm/bitops.h b/arch/sh/include/asm/bitops.h
index d7d382f63ee..367930d8e5a 100644
--- a/arch/sh/include/asm/bitops.h
+++ b/arch/sh/include/asm/bitops.h
@@ -13,6 +13,8 @@
 
 #ifdef CONFIG_GUSA_RB
 #include <asm/bitops-grb.h>
+#elif defined(CONFIG_CPU_SH4A)
+#include <asm/bitops-llsc.h>
 #else
 #include <asm/bitops-irq.h>
 #endif
diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h
index 720dfab7b15..f9c88583d90 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -39,6 +39,7 @@ struct clk {
 
 /* Should be defined by processor-specific code */
 void arch_init_clk_ops(struct clk_ops **, int type);
+int __init arch_clk_init(void);
 
 /* arch/sh/kernel/cpu/clock.c */
 int clk_init(void);
diff --git a/arch/sh/include/asm/cmpxchg-llsc.h b/arch/sh/include/asm/cmpxchg-llsc.h
new file mode 100644
index 00000000000..aee3bf28658
--- /dev/null
+++ b/arch/sh/include/asm/cmpxchg-llsc.h
@@ -0,0 +1,71 @@
+#ifndef __ASM_SH_CMPXCHG_LLSC_H
+#define __ASM_SH_CMPXCHG_LLSC_H
+
+static inline unsigned long xchg_u32(volatile u32 *m, unsigned long val)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:					\n\t"
+		"movli.l	@%1, %0	! xchg_u32	\n\t"
+		"mov		%0, %2			\n\t"
+		"mov		%4, %0			\n\t"
+		"movco.l	%0, @%1			\n\t"
+		"bf		1b			\n\t"
+		"synco					\n\t"
+		: "=&z"(tmp), "=r" (m), "=&r" (retval)
+		: "1" (m), "r" (val)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+static inline unsigned long xchg_u8(volatile u8 *m, unsigned long val)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:					\n\t"
+		"movli.l	@%1, %0	! xchg_u8	\n\t"
+		"mov		%0, %2			\n\t"
+		"mov		%4, %0			\n\t"
+		"movco.l	%0, @%1			\n\t"
+		"bf		1b			\n\t"
+		"synco					\n\t"
+		: "=&z"(tmp), "=r" (m), "=&r" (retval)
+		: "1" (m), "r" (val & 0xff)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+static inline unsigned long
+__cmpxchg_u32(volatile int *m, unsigned long old, unsigned long new)
+{
+	unsigned long retval;
+	unsigned long tmp;
+
+	__asm__ __volatile__ (
+		"1:						\n\t"
+		"movli.l	@%1, %0	! __cmpxchg_u32		\n\t"
+		"mov		%0, %2				\n\t"
+		"cmp/eq		%2, %4				\n\t"
+		"bf		2f				\n\t"
+		"mov		%5, %0				\n\t"
+		"2:						\n\t"
+		"movco.l	%0, @%1				\n\t"
+		"bf		1b				\n\t"
+		"synco						\n\t"
+		: "=&z" (tmp), "=r" (m), "=&r" (retval)
+		: "1" (m), "r" (old), "r" (new)
+		: "t", "memory"
+	);
+
+	return retval;
+}
+
+#endif /* __ASM_SH_CMPXCHG_LLSC_H */
diff --git a/arch/sh/include/asm/elf.h b/arch/sh/include/asm/elf.h
index ee02db110f0..9eb9036a1bd 100644
--- a/arch/sh/include/asm/elf.h
+++ b/arch/sh/include/asm/elf.h
@@ -108,6 +108,14 @@ typedef struct user_fpu_struct elf_fpregset_t;
 #define elf_check_fdpic(x)		((x)->e_flags & EF_SH_FDPIC)
 #define elf_check_const_displacement(x)	((x)->e_flags & EF_SH_PIC)
 
+#ifdef CONFIG_SUPERH32
+/*
+ * Enable dump using regset.
+ * This covers all of general/DSP/FPU regs.
+ */
+#define CORE_DUMP_USE_REGSET
+#endif
+
 #define USE_ELF_CORE_DUMP
 #define ELF_FDPIC_CORE_EFLAGS	EF_SH_FDPIC
 #define ELF_EXEC_PAGESIZE	PAGE_SIZE
@@ -190,12 +198,6 @@ do {									\
 #endif
 
 #define SET_PERSONALITY(ex) set_personality(PER_LINUX_32BIT)
-struct task_struct;
-extern int dump_task_regs (struct task_struct *, elf_gregset_t *);
-extern int dump_task_fpu (struct task_struct *, elf_fpregset_t *);
-
-#define ELF_CORE_COPY_TASK_REGS(tsk, elf_regs) dump_task_regs(tsk, elf_regs)
-#define ELF_CORE_COPY_FPREGS(tsk, elf_fpregs) dump_task_fpu(tsk, elf_fpregs)
 
 #ifdef CONFIG_VSYSCALL
 /* vDSO has arch_setup_additional_pages */
diff --git a/arch/sh/include/asm/fpu.h b/arch/sh/include/asm/fpu.h
index 91462fea150..1d3aee04b5c 100644
--- a/arch/sh/include/asm/fpu.h
+++ b/arch/sh/include/asm/fpu.h
@@ -30,8 +30,15 @@ static inline void save_fpu(struct task_struct *tsk, struct pt_regs *regs)
 }
 #endif
 
+struct user_regset;
+
 extern int do_fpu_inst(unsigned short, struct pt_regs *);
 
+extern int fpregs_get(struct task_struct *target,
+		      const struct user_regset *regset,
+		      unsigned int pos, unsigned int count,
+		      void *kbuf, void __user *ubuf);
+
 static inline void unlazy_fpu(struct task_struct *tsk, struct pt_regs *regs)
 {
 	preempt_disable();
@@ -50,6 +57,18 @@ static inline void clear_fpu(struct task_struct *tsk, struct pt_regs *regs)
 	preempt_enable();
 }
 
+static inline int init_fpu(struct task_struct *tsk)
+{
+	if (tsk_used_math(tsk)) {
+		if ((boot_cpu_data.flags & CPU_HAS_FPU) && tsk == current)
+			unlazy_fpu(tsk, task_pt_regs(tsk));
+		return 0;
+	}
+
+	set_stopped_child_used_math(tsk);
+	return 0;
+}
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_SH_FPU_H */
diff --git a/arch/sh/include/asm/ftrace.h b/arch/sh/include/asm/ftrace.h
new file mode 100644
index 00000000000..3aed362c946
--- /dev/null
+++ b/arch/sh/include/asm/ftrace.h
@@ -0,0 +1,8 @@
+#ifndef __ASM_SH_FTRACE_H
+#define __ASM_SH_FTRACE_H
+
+#ifndef __ASSEMBLY__
+extern void mcount(void);
+#endif
+
+#endif /* __ASM_SH_FTRACE_H */
diff --git a/arch/sh/include/asm/gpio.h b/arch/sh/include/asm/gpio.h
index cf32bd2df88..90673658eb1 100644
--- a/arch/sh/include/asm/gpio.h
+++ b/arch/sh/include/asm/gpio.h
@@ -1,9 +1,9 @@
 /*
  *  include/asm-sh/gpio.h
  *
- *  Copyright (C) 2007 Markus Brunner, Mark Jonas
+ * Generic GPIO API and pinmux table support for SuperH.
  *
- *  Addresses for the Pin Function Controller
+ * Copyright (c) 2008 Magnus Damm
  *
  * 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
@@ -12,8 +12,111 @@
 #ifndef __ASM_SH_GPIO_H
 #define __ASM_SH_GPIO_H
 
+#include <linux/kernel.h>
+#include <linux/errno.h>
+
 #if defined(CONFIG_CPU_SH3)
 #include <cpu/gpio.h>
 #endif
 
+typedef unsigned short pinmux_enum_t;
+typedef unsigned char pinmux_flag_t;
+
+#define PINMUX_TYPE_NONE            0
+#define PINMUX_TYPE_FUNCTION        1
+#define PINMUX_TYPE_GPIO            2
+#define PINMUX_TYPE_OUTPUT          3
+#define PINMUX_TYPE_INPUT           4
+#define PINMUX_TYPE_INPUT_PULLUP    5
+#define PINMUX_TYPE_INPUT_PULLDOWN  6
+
+#define PINMUX_FLAG_TYPE            (0x7)
+#define PINMUX_FLAG_WANT_PULLUP     (1 << 3)
+#define PINMUX_FLAG_WANT_PULLDOWN   (1 << 4)
+
+struct pinmux_gpio {
+	pinmux_enum_t enum_id;
+	pinmux_flag_t flags;
+};
+
+#define PINMUX_GPIO(gpio, data_or_mark) [gpio] = { data_or_mark }
+#define PINMUX_DATA(data_or_mark, ids...) data_or_mark, ids, 0
+
+struct pinmux_cfg_reg {
+	unsigned long reg, reg_width, field_width;
+	unsigned long *cnt;
+	pinmux_enum_t *enum_ids;
+};
+
+#define PINMUX_CFG_REG(name, r, r_width, f_width) \
+	.reg = r, .reg_width = r_width, .field_width = f_width,		\
+	.cnt = (unsigned long [r_width / f_width]) {}, \
+	.enum_ids = (pinmux_enum_t [(r_width / f_width) * (1 << f_width)]) \
+
+struct pinmux_data_reg {
+	unsigned long reg, reg_width;
+	pinmux_enum_t *enum_ids;
+};
+
+#define PINMUX_DATA_REG(name, r, r_width) \
+	.reg = r, .reg_width = r_width,	\
+	.enum_ids = (pinmux_enum_t [r_width]) \
+
+struct pinmux_range {
+	pinmux_enum_t begin;
+	pinmux_enum_t end;
+	pinmux_enum_t force;
+};
+
+struct pinmux_info {
+	char *name;
+	pinmux_enum_t reserved_id;
+	struct pinmux_range data;
+	struct pinmux_range input;
+	struct pinmux_range input_pd;
+	struct pinmux_range input_pu;
+	struct pinmux_range output;
+	struct pinmux_range mark;
+	struct pinmux_range function;
+
+	unsigned first_gpio, last_gpio;
+
+	struct pinmux_gpio *gpios;
+	struct pinmux_cfg_reg *cfg_regs;
+	struct pinmux_data_reg *data_regs;
+
+	pinmux_enum_t *gpio_data;
+	unsigned int gpio_data_size;
+
+	unsigned long *gpio_in_use;
+};
+
+int register_pinmux(struct pinmux_info *pip);
+
+int __gpio_request(unsigned gpio);
+static inline int gpio_request(unsigned gpio, const char *label)
+{
+	return __gpio_request(gpio);
+}
+void gpio_free(unsigned gpio);
+int gpio_direction_input(unsigned gpio);
+int gpio_direction_output(unsigned gpio, int value);
+int gpio_get_value(unsigned gpio);
+void gpio_set_value(unsigned gpio, int value);
+
+/* IRQ modes are unspported */
+static inline int gpio_to_irq(unsigned gpio)
+{
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+static inline int irq_to_gpio(unsigned irq)
+{
+	WARN_ON(1);
+	return -EINVAL;
+}
+
+#include <asm-generic/gpio.h>
+
 #endif /* __ASM_SH_GPIO_H */
diff --git a/arch/sh/include/asm/hw_irq.h b/arch/sh/include/asm/hw_irq.h
index d557b00111b..603cdde813d 100644
--- a/arch/sh/include/asm/hw_irq.h
+++ b/arch/sh/include/asm/hw_irq.h
@@ -2,6 +2,7 @@
 #define __ASM_SH_HW_IRQ_H
 
 #include <linux/init.h>
+#include <linux/sh_intc.h>
 #include <asm/atomic.h>
 
 extern atomic_t irq_err_count;
@@ -23,101 +24,12 @@ struct ipr_desc {
 
 void register_ipr_controller(struct ipr_desc *);
 
-typedef unsigned char intc_enum;
-
-struct intc_vect {
-	intc_enum enum_id;
-	unsigned short vect;
-};
-
-#define INTC_VECT(enum_id, vect) { enum_id, vect }
-#define INTC_IRQ(enum_id, irq) INTC_VECT(enum_id, irq2evt(irq))
-
-struct intc_group {
-	intc_enum enum_id;
-	intc_enum enum_ids[32];
-};
-
-#define INTC_GROUP(enum_id, ids...) { enum_id, { ids } }
-
-struct intc_mask_reg {
-	unsigned long set_reg, clr_reg, reg_width;
-	intc_enum enum_ids[32];
-#ifdef CONFIG_SMP
-	unsigned long smp;
-#endif
-};
-
-struct intc_prio_reg {
-	unsigned long set_reg, clr_reg, reg_width, field_width;
-	intc_enum enum_ids[16];
-#ifdef CONFIG_SMP
-	unsigned long smp;
-#endif
-};
-
-struct intc_sense_reg {
-	unsigned long reg, reg_width, field_width;
-	intc_enum enum_ids[16];
-};
-
-#ifdef CONFIG_SMP
-#define INTC_SMP(stride, nr) .smp = (stride) | ((nr) << 8)
-#else
-#define INTC_SMP(stride, nr)
-#endif
-
-struct intc_desc {
-	struct intc_vect *vectors;
-	unsigned int nr_vectors;
-	struct intc_group *groups;
-	unsigned int nr_groups;
-	struct intc_mask_reg *mask_regs;
-	unsigned int nr_mask_regs;
-	struct intc_prio_reg *prio_regs;
-	unsigned int nr_prio_regs;
-	struct intc_sense_reg *sense_regs;
-	unsigned int nr_sense_regs;
-	char *name;
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-	struct intc_mask_reg *ack_regs;
-	unsigned int nr_ack_regs;
-#endif
-};
-
-#define _INTC_ARRAY(a) a, sizeof(a)/sizeof(*a)
-#define DECLARE_INTC_DESC(symbol, chipname, vectors, groups,		\
-	mask_regs, prio_regs, sense_regs)				\
-struct intc_desc symbol __initdata = {					\
-	_INTC_ARRAY(vectors), _INTC_ARRAY(groups),			\
-	_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),			\
-	_INTC_ARRAY(sense_regs),					\
-	chipname,							\
-}
-
-#if defined(CONFIG_CPU_SH3) || defined(CONFIG_CPU_SH4A)
-#define DECLARE_INTC_DESC_ACK(symbol, chipname, vectors, groups,	\
-	mask_regs, prio_regs, sense_regs, ack_regs)			\
-struct intc_desc symbol __initdata = {					\
-	_INTC_ARRAY(vectors), _INTC_ARRAY(groups),			\
-	_INTC_ARRAY(mask_regs), _INTC_ARRAY(prio_regs),			\
-	_INTC_ARRAY(sense_regs),					\
-	chipname,							\
-	_INTC_ARRAY(ack_regs),						\
-}
-#endif
-
-void __init register_intc_controller(struct intc_desc *desc);
-int intc_set_priority(unsigned int irq, unsigned int prio);
-
 void __init plat_irq_setup(void);
-#ifdef CONFIG_CPU_SH3
 void __init plat_irq_setup_sh3(void);
-#endif
+void __init plat_irq_setup_pins(int mode);
 
 enum { IRQ_MODE_IRQ, IRQ_MODE_IRQ7654, IRQ_MODE_IRQ3210,
        IRQ_MODE_IRL7654_MASK, IRQ_MODE_IRL3210_MASK,
        IRQ_MODE_IRL7654, IRQ_MODE_IRL3210 };
-void __init plat_irq_setup_pins(int mode);
 
 #endif /* __ASM_SH_HW_IRQ_H */
diff --git a/arch/sh/include/asm/io.h b/arch/sh/include/asm/io.h
index a4fbf0c84fb..436c2853957 100644
--- a/arch/sh/include/asm/io.h
+++ b/arch/sh/include/asm/io.h
@@ -1,27 +1,26 @@
 #ifndef __ASM_SH_IO_H
 #define __ASM_SH_IO_H
-
 /*
  * Convention:
- *    read{b,w,l}/write{b,w,l} are for PCI,
+ *    read{b,w,l,q}/write{b,w,l,q} are for PCI,
  *    while in{b,w,l}/out{b,w,l} are for ISA
- * These may (will) be platform specific function.
+ *
  * In addition we have 'pausing' versions: in{b,w,l}_p/out{b,w,l}_p
  * and 'string' versions: ins{b,w,l}/outs{b,w,l}
- * For read{b,w,l} and write{b,w,l} there are also __raw versions, which
- * do not have a memory barrier after them.
  *
- * In addition, we have
- *   ctrl_in{b,w,l}/ctrl_out{b,w,l} for SuperH specific I/O.
- *   which are processor specific.
- */
-
-/*
- * We follow the Alpha convention here:
- *  __inb expands to an inline function call (which calls via the mv)
- *  _inb  is a real function call (note ___raw fns are _ version of __raw)
- *  inb   by default expands to _inb, but the machine specific code may
- *        define it to __inb if it chooses.
+ * While read{b,w,l,q} and write{b,w,l,q} contain memory barriers
+ * automatically, there are also __raw versions, which do not.
+ *
+ * Historically, we have also had ctrl_in{b,w,l,q}/ctrl_out{b,w,l,q} for
+ * SuperH specific I/O (raw I/O to on-chip CPU peripherals). In practice
+ * these have the same semantics as the __raw variants, and as such, all
+ * new code should be using the __raw versions.
+ *
+ * All ISA I/O routines are wrapped through the machine vector. If a
+ * board does not provide overrides, a generic set that are copied in
+ * from the default machine vector are used instead. These are largely
+ * for old compat code for I/O offseting to SuperIOs, all of which are
+ * better handled through the machvec ioport mapping routines these days.
  */
 #include <asm/cache.h>
 #include <asm/system.h>
@@ -31,7 +30,6 @@
 #include <asm-generic/iomap.h>
 
 #ifdef __KERNEL__
-
 /*
  * Depending on which platform we are running on, we need different
  * I/O functions.
@@ -40,105 +38,68 @@
 #include <asm/io_generic.h>
 #include <asm/io_trapped.h>
 
-#define maybebadio(port) \
-  printk(KERN_ERR "bad PC-like io %s:%u for port 0x%lx at 0x%08x\n", \
-	 __FUNCTION__, __LINE__, (port), (u32)__builtin_return_address(0))
-
-/*
- * Since boards are able to define their own set of I/O routines through
- * their respective machine vector, we always wrap through the mv.
- *
- * Also, in the event that a board hasn't provided its own definition for
- * a given routine, it will be wrapped to generic code at run-time.
- */
+#define inb(p)			sh_mv.mv_inb((p))
+#define inw(p)			sh_mv.mv_inw((p))
+