Merge branch 'linus' into perfcounters/core

Merge reason: Bring in tracing changes we depend on.

Signed-off-by: Ingo Molnar <mingo@elte.hu>

12 files changed, 148 insertions, 23 deletions

diff --git a/arch/blackfin/include/asm/bfin-global.h b/arch/blackfin/include/asm/bfin-global.h
index e39277ea43e8..aef0594e7865 100644
--- a/arch/blackfin/include/asm/bfin-global.h
+++ b/arch/blackfin/include/asm/bfin-global.h
@@ -66,7 +66,6 @@ extern void program_IAR(void);
 
 extern asmlinkage void lower_to_irq14(void);
 extern asmlinkage void bfin_return_from_exception(void);
-extern asmlinkage void evt14_softirq(void);
 extern asmlinkage void asm_do_IRQ(unsigned int irq, struct pt_regs *regs);
 extern int bfin_internal_set_wake(unsigned int irq, unsigned int state);
 
@@ -100,11 +99,6 @@ extern unsigned long bfin_sic_iwr[];
 extern unsigned vr_wakeup;
 extern u16 _bfin_swrst; /* shadow for Software Reset Register (SWRST) */
 
-#ifdef CONFIG_BFIN_ICACHE_LOCK
-extern void cache_grab_lock(int way);
-extern void bfin_cache_lock(int way);
-#endif
-
 #endif
 
 #endif				/* _BLACKFIN_H_ */
diff --git a/arch/blackfin/include/asm/bfin5xx_spi.h b/arch/blackfin/include/asm/bfin5xx_spi.h
index aaeb4df10d57..c281c6328276 100644
--- a/arch/blackfin/include/asm/bfin5xx_spi.h
+++ b/arch/blackfin/include/asm/bfin5xx_spi.h
@@ -127,6 +127,7 @@ struct bfin5xx_spi_chip {
 	u32 cs_gpio;
 	/* Value to send if no TX value is supplied, usually 0x0 or 0xFFFF */
 	u16 idle_tx_val;
+	u8 pio_interrupt; /* Enable spi data irq */
 };
 
 #endif /* _SPI_CHANNEL_H_ */
diff --git a/arch/blackfin/include/asm/bfin_rotary.h b/arch/blackfin/include/asm/bfin_rotary.h
new file mode 100644
index 000000000000..425ece64fd5e
--- /dev/null
+++ b/arch/blackfin/include/asm/bfin_rotary.h
@@ -0,0 +1,39 @@
+/*
+ * board initialization should put one of these structures into platform_data
+ * and place the bfin-rotary onto platform_bus named "bfin-rotary".
+ */
+
+#ifndef _BFIN_ROTARY_H
+#define _BFIN_ROTARY_H
+
+/* mode bitmasks */
+#define ROT_QUAD_ENC	CNTMODE_QUADENC	/* quadrature/grey code encoder mode */
+#define ROT_BIN_ENC	CNTMODE_BINENC	/* binary encoder mode */
+#define ROT_UD_CNT	CNTMODE_UDCNT	/* rotary counter mode */
+#define ROT_DIR_CNT	CNTMODE_DIRCNT	/* direction counter mode */
+
+#define ROT_DEBE	DEBE		/* Debounce Enable */
+
+#define ROT_CDGINV	CDGINV		/* CDG Pin Polarity Invert */
+#define ROT_CUDINV	CUDINV		/* CUD Pin Polarity Invert */
+#define ROT_CZMINV	CZMINV		/* CZM Pin Polarity Invert */
+
+struct bfin_rotary_platform_data {
+	/* set rotary UP KEY_### or BTN_### in case you prefer
+	 * bfin-rotary to send EV_KEY otherwise set 0
+	 */
+	unsigned int rotary_up_key;
+	/* set rotary DOWN KEY_### or BTN_### in case you prefer
+	 * bfin-rotary to send EV_KEY otherwise set 0
+	 */
+	unsigned int rotary_down_key;
+	/* set rotary BUTTON KEY_### or BTN_### */
+	unsigned int rotary_button_key;
+	/* set rotary Relative Axis REL_### in case you prefer
+	 * bfin-rotary to send EV_REL otherwise set 0
+	 */
+	unsigned int rotary_rel_code;
+	unsigned short debounce;	/* 0..17 */
+	unsigned short mode;
+};
+#endif
diff --git a/arch/blackfin/include/asm/cplb.h b/arch/blackfin/include/asm/cplb.h
index c5dacf8f8cf9..d18d16837a6d 100644
--- a/arch/blackfin/include/asm/cplb.h
+++ b/arch/blackfin/include/asm/cplb.h
@@ -125,4 +125,48 @@
 #define FAULT_USERSUPV  (1 << 17)
 #define FAULT_CPLBBITS  0x0000ffff
 
-#endif				/* _CPLB_H */
+#ifndef __ASSEMBLY__
+
+static inline void _disable_cplb(u32 mmr, u32 mask)
+{
+	u32 ctrl = bfin_read32(mmr) & ~mask;
+	/* CSYNC to ensure load store ordering */
+	__builtin_bfin_csync();
+	bfin_write32(mmr, ctrl);
+	__builtin_bfin_ssync();
+}
+static inline void disable_cplb(u32 mmr, u32 mask)
+{
+	u32 ctrl = bfin_read32(mmr) & ~mask;
+	CSYNC();
+	bfin_write32(mmr, ctrl);
+	SSYNC();
+}
+#define _disable_dcplb() _disable_cplb(DMEM_CONTROL, ENDCPLB)
+#define  disable_dcplb()  disable_cplb(DMEM_CONTROL, ENDCPLB)
+#define _disable_icplb() _disable_cplb(IMEM_CONTROL, ENICPLB)
+#define  disable_icplb()  disable_cplb(IMEM_CONTROL, ENICPLB)
+
+static inline void _enable_cplb(u32 mmr, u32 mask)
+{
+	u32 ctrl = bfin_read32(mmr) | mask;
+	/* CSYNC to ensure load store ordering */
+	__builtin_bfin_csync();
+	bfin_write32(mmr, ctrl);
+	__builtin_bfin_ssync();
+}
+static inline void enable_cplb(u32 mmr, u32 mask)
+{
+	u32 ctrl = bfin_read32(mmr) | mask;
+	CSYNC();
+	bfin_write32(mmr, ctrl);
+	SSYNC();
+}
+#define _enable_dcplb()  _enable_cplb(DMEM_CONTROL, ENDCPLB)
+#define  enable_dcplb()   enable_cplb(DMEM_CONTROL, ENDCPLB)
+#define _enable_icplb()  _enable_cplb(IMEM_CONTROL, ENICPLB)
+#define  enable_icplb()   enable_cplb(IMEM_CONTROL, ENICPLB)
+
+#endif		/* __ASSEMBLY__ */
+
+#endif		/* _CPLB_H */
diff --git a/arch/blackfin/include/asm/early_printk.h b/arch/blackfin/include/asm/early_printk.h
index 110f1c1f845c..53a762b6fcd2 100644
--- a/arch/blackfin/include/asm/early_printk.h
+++ b/arch/blackfin/include/asm/early_printk.h
@@ -21,8 +21,32 @@
  * GNU General Public License for more details.
  */
 
+
+#ifndef __ASM_EARLY_PRINTK_H__
+#define __ASM_EARLY_PRINTK_H__
+
 #ifdef CONFIG_EARLY_PRINTK
+/* For those that don't include it already */
+#include <linux/console.h>
+
 extern int setup_early_printk(char *);
+extern void enable_shadow_console(void);
+extern int shadow_console_enabled(void);
+extern void mark_shadow_error(void);
+extern void early_shadow_reg(unsigned long reg, unsigned int n);
+extern void early_shadow_write(struct console *con, const char *s,
+	unsigned int n) __attribute__((nonnull(2)));
+#define early_shadow_puts(str) early_shadow_write(NULL, str, strlen(str))
+#define early_shadow_stamp() \
+	do { \
+		early_shadow_puts(__FILE__ " : " __stringify(__LINE__) " ["); \
+		early_shadow_puts(__func__); \
+		early_shadow_puts("]\n"); \
+	} while (0)
 #else
 #define setup_early_printk(fmt) do { } while (0)
+#define enable_shadow_console(fmt)  do { } while (0)
+#define early_shadow_stamp() do { } while (0)
 #endif /* CONFIG_EARLY_PRINTK */
+
+#endif /* __ASM_EARLY_PRINTK_H__ */
diff --git a/arch/blackfin/include/asm/elf.h b/arch/blackfin/include/asm/elf.h
index 5a87baf0659d..c823e8ebbfa1 100644
--- a/arch/blackfin/include/asm/elf.h
+++ b/arch/blackfin/include/asm/elf.h
@@ -23,7 +23,7 @@ typedef unsigned long elf_greg_t;
 #define ELF_NGREG 40 /* (sizeof(struct user_regs_struct) / sizeof(elf_greg_t)) */
 typedef elf_greg_t elf_gregset_t[ELF_NGREG];
 
-typedef struct user_bfinfp_struct elf_fpregset_t;
+typedef struct { } elf_fpregset_t;
 /*
  * This is used to ensure we don't load something for the wrong architecture.
  */
diff --git a/arch/blackfin/include/asm/entry.h b/arch/blackfin/include/asm/entry.h
index ec58efc130e6..55b808fced71 100644
--- a/arch/blackfin/include/asm/entry.h
+++ b/arch/blackfin/include/asm/entry.h
@@ -36,6 +36,21 @@
 # define LOAD_IPIPE_IPEND
 #endif
 
+/*
+ * Workaround for anomalies 05000283 and 05000315
+ */
+#if ANOMALY_05000283 || ANOMALY_05000315
+# define ANOMALY_283_315_WORKAROUND(preg, dreg)		\
+	cc = dreg == dreg;				\
+	preg.h = HI(CHIPID);				\
+	preg.l = LO(CHIPID);				\
+	if cc jump 1f;					\
+	dreg.l = W[preg];				\
+1:
+#else
+# define ANOMALY_283_315_WORKAROUND(preg, dreg)
+#endif /* ANOMALY_05000283 || ANOMALY_05000315 */
+
 #ifndef CONFIG_EXACT_HWERR
 /* As a debugging aid - we save IPEND when DEBUG_KERNEL is on,
  * otherwise it is a waste of cycles.
@@ -88,17 +103,22 @@
  * As you can see by the code - we actually need to do two SSYNCS - one to
  * make sure the read/writes complete, and another to make sure the hardware
  * error is recognized by the core.
+ *
+ * The extra nop before the SSYNC is to make sure we work around 05000244,
+ * since the 283/315 workaround includes a branch to the end
  */
 #define INTERRUPT_ENTRY(N)						\
-    SSYNC;								\
-    SSYNC;								\
     [--sp] = SYSCFG;							\
     [--sp] = P0;	/*orig_p0*/					\
     [--sp] = R0;	/*orig_r0*/					\
     [--sp] = (R7:0,P5:0);						\
     R1 = ASTAT;								\
+    ANOMALY_283_315_WORKAROUND(p0, r0)					\
     P0.L = LO(ILAT);							\
     P0.H = HI(ILAT);							\
+    NOP;								\
+    SSYNC;								\
+    SSYNC;								\
     R0 = [P0];								\
     CC = BITTST(R0, EVT_IVHW_P);					\
     IF CC JUMP 1f;							\
@@ -118,15 +138,17 @@
     RTI;
 
 #define TIMER_INTERRUPT_ENTRY(N)					\
-    SSYNC;								\
-    SSYNC;								\
     [--sp] = SYSCFG;							\
     [--sp] = P0;	/*orig_p0*/					\
     [--sp] = R0;	/*orig_r0*/					\
     [--sp] = (R7:0,P5:0);						\
     R1 = ASTAT;								\
+    ANOMALY_283_315_WORKAROUND(p0, r0)					\
     P0.L = LO(ILAT);							\
     P0.H = HI(ILAT);							\
+    NOP;								\
+    SSYNC;								\
+    SSYNC;								\
     R0 = [P0];								\
     CC = BITTST(R0, EVT_IVHW_P);					\
     IF CC JUMP 1f;							\
diff --git a/arch/blackfin/include/asm/ftrace.h b/arch/blackfin/include/asm/ftrace.h
index 8643680f0f78..90c9b400ba6d 100644
--- a/arch/blackfin/include/asm/ftrace.h
+++ b/arch/blackfin/include/asm/ftrace.h
@@ -8,6 +8,6 @@
 #ifndef __ASM_BFIN_FTRACE_H__
 #define __ASM_BFIN_FTRACE_H__
 
-#define MCOUNT_INSN_SIZE	8 /* sizeof mcount call: LINK + CALL */
+#define MCOUNT_INSN_SIZE	6 /* sizeof "[++sp] = rets; call __mcount;" */
 
 #endif
diff --git a/arch/blackfin/include/asm/ipipe.h b/arch/blackfin/include/asm/ipipe.h
index 87ba9ad399cb..4617ba66278f 100644
--- a/arch/blackfin/include/asm/ipipe.h
+++ b/arch/blackfin/include/asm/ipipe.h
@@ -145,10 +145,6 @@ void __ipipe_handle_irq(unsigned irq, struct pt_regs *regs);
 
 int __ipipe_get_irq_priority(unsigned irq);
 
-void __ipipe_stall_root_raw(void);
-
-void __ipipe_unstall_root_raw(void);
-
 void __ipipe_serial_debug(const char *fmt, ...);
 
 asmlinkage void __ipipe_call_irqtail(unsigned long addr);
@@ -234,9 +230,6 @@ int ipipe_start_irq_thread(unsigned irq, struct irq_desc *desc);
 #define task_hijacked(p)		0
 #define ipipe_trap_notify(t, r)  	0
 
-#define __ipipe_stall_root_raw()	do { } while (0)
-#define __ipipe_unstall_root_raw()	do { } while (0)
-
 #define ipipe_init_irq_threads()		do { } while (0)
 #define ipipe_start_irq_thread(irq, desc)	0
 
diff --git a/arch/blackfin/include/asm/irq_handler.h b/arch/blackfin/include/asm/irq_handler.h
index 139b5208f9d8..7d9e2d3bbede 100644
--- a/arch/blackfin/include/asm/irq_handler.h
+++ b/arch/blackfin/include/asm/irq_handler.h
@@ -17,6 +17,7 @@ asmlinkage void evt_evt10(void);
 asmlinkage void evt_evt11(void);
 asmlinkage void evt_evt12(void);
 asmlinkage void evt_evt13(void);
+asmlinkage void evt_evt14(void);
 asmlinkage void evt_soft_int1(void);
 asmlinkage void evt_system_call(void);
 asmlinkage void init_exception_buff(void);
diff --git a/arch/blackfin/include/asm/mmu_context.h b/arch/blackfin/include/asm/mmu_context.h
index 944e29faae48..040410bb07e1 100644
--- a/arch/blackfin/include/asm/mmu_context.h
+++ b/arch/blackfin/include/asm/mmu_context.h
@@ -127,17 +127,17 @@ static inline void protect_page(struct mm_struct *mm, unsigned long addr,
 	unsigned long idx = page >> 5;
 	unsigned long bit = 1 << (page & 31);
 
-	if (flags & VM_MAYREAD)
+	if (flags & VM_READ)
 		mask[idx] |= bit;
 	else
 		mask[idx] &= ~bit;
 	mask += page_mask_nelts;
-	if (flags & VM_MAYWRITE)
+	if (flags & VM_WRITE)
 		mask[idx] |= bit;
 	else
 		mask[idx] &= ~bit;
 	mask += page_mask_nelts;
-	if (flags & VM_MAYEXEC)
+	if (flags & VM_EXEC)
 		mask[idx] |= bit;
 	else
 		mask[idx] &= ~bit;
diff --git a/arch/blackfin/include/asm/pda.h b/arch/blackfin/include/asm/pda.h
index b42555c1431c..a6f95695731d 100644
--- a/arch/blackfin/include/asm/pda.h
+++ b/arch/blackfin/include/asm/pda.h
@@ -50,6 +50,7 @@ struct blackfin_pda {			/* Per-processor Data Area */
 	unsigned long ex_optr;
 	unsigned long ex_buf[4];
 	unsigned long ex_imask;		/* Saved imask from exception */
+	unsigned long ex_ipend;		/* Saved IPEND from exception */
 	unsigned long *ex_stack;	/* Exception stack space */
 
 #ifdef ANOMALY_05000261
@@ -60,6 +61,12 @@ struct blackfin_pda {			/* Per-processor Data Area */
 	unsigned long retx;
 	unsigned long seqstat;
 	unsigned int __nmi_count;	/* number of times NMI asserted on this CPU */
+#ifdef CONFIG_DEBUG_DOUBLEFAULT
+	unsigned long dcplb_doublefault_addr;
+	unsigned long icplb_doublefault_addr;
+	unsigned long retx_doublefault;
+	unsigned long seqstat_doublefault;
+#endif
 };
 
 extern struct blackfin_pda cpu_pda[];