These changes are the raw update to linux-4.4.6-rt14. Kernel sources

are taken from kernel.org, and rt patch from the rt wiki download page.

During the rebasing, the following patch collided:

Force tick interrupt and get rid of softirq magic(I70131fb85).

Collisions have been removed because its logic was found on the
source already.

Change-Id: I7f57a4081d9deaa0d9ccfc41a6c8daccdee3b769
Signed-off-by: José Pekkarinen <jose.pekkarinen@nokia.com>

6 files changed, 11 insertions, 337 deletions

diff --git a/kernel/arch/cris/include/arch-v32/arch/bug.h b/kernel/arch/cris/include/arch-v32/arch/bug.h
index 0f211e135..fb59faaaa 100644
--- a/kernel/arch/cris/include/arch-v32/arch/bug.h
+++ b/kernel/arch/cris/include/arch-v32/arch/bug.h
@@ -10,6 +10,7 @@
  * All other stuff is done out-of-band with exception handlers.
  */
 #define BUG()								\
+do {									\
 	__asm__ __volatile__ ("0: break 14\n\t"				\
 			      ".section .fixup,\"ax\"\n"		\
 			      "1:\n\t"					\
@@ -21,9 +22,15 @@
 			      ".section __ex_table,\"a\"\n\t"		\
 			      ".dword 0b, 1b\n\t"			\
 			      ".previous\n\t"				\
-			      : : "ri" (__FILE__), "i" (__LINE__))
+			      : : "ri" (__FILE__), "i" (__LINE__));	\
+	unreachable();				\
+} while (0)
 #else
-#define BUG() __asm__ __volatile__ ("break 14\n\t")
+#define BUG() 					\
+do {						\
+	__asm__ __volatile__ ("break 14\n\t");	\
+	unreachable();				\
+} while (0)
 #endif
 
 #define HAVE_ARCH_BUG
diff --git a/kernel/arch/cris/include/arch-v32/arch/elf.h b/kernel/arch/cris/include/arch-v32/arch/elf.h
deleted file mode 100644
index c46d58291..000000000
--- a/kernel/arch/cris/include/arch-v32/arch/elf.h
+++ /dev/null
@@ -1,75 +0,0 @@
-#ifndef _ASM_CRIS_ELF_H
-#define _ASM_CRIS_ELF_H
-
-#include <arch/system.h>
-
-#define ELF_CORE_EFLAGS EF_CRIS_VARIANT_V32
-
-/*
- * This is used to ensure we don't load something for the wrong architecture.
- */
-#define elf_check_arch(x)			\
- ((x)->e_machine == EM_CRIS			\
-  && ((((x)->e_flags & EF_CRIS_VARIANT_MASK) == EF_CRIS_VARIANT_V32	\
-      || (((x)->e_flags & EF_CRIS_VARIANT_MASK) == EF_CRIS_VARIANT_COMMON_V10_V32))))
-
-/* CRISv32 ELF register definitions. */
-
-#include <asm/ptrace.h>
-
-/* Explicitly zero out registers to increase determinism. */
-#define ELF_PLAT_INIT(_r, load_addr)    do { \
-        (_r)->r13 = 0; (_r)->r12 = 0; (_r)->r11 = 0; (_r)->r10 = 0; \
-        (_r)->r9 = 0;  (_r)->r8 = 0;  (_r)->r7 = 0;  (_r)->r6 = 0;  \
-        (_r)->r5 = 0;  (_r)->r4 = 0;  (_r)->r3 = 0;  (_r)->r2 = 0;  \
-        (_r)->r1 = 0;  (_r)->r0 = 0;  (_r)->mof = 0; (_r)->srp = 0; \
-        (_r)->acr = 0; \
-} while (0)
-
-/*
- * An executable for which elf_read_implies_exec() returns TRUE will
- * have the READ_IMPLIES_EXEC personality flag set automatically.
- */
-#define elf_read_implies_exec_binary(ex, have_pt_gnu_stack)	(!(have_pt_gnu_stack))
-
-/*
- * This is basically a pt_regs with the additional definition
- * of the stack pointer since it's needed in a core dump.
- * pr_regs is a elf_gregset_t and should be filled according
- * to the layout of user_regs_struct.
- */
-#define ELF_CORE_COPY_REGS(pr_reg, regs)                   \
-        pr_reg[0] = regs->r0;                              \
-        pr_reg[1] = regs->r1;                              \
-        pr_reg[2] = regs->r2;                              \
-        pr_reg[3] = regs->r3;                              \
-        pr_reg[4] = regs->r4;                              \
-        pr_reg[5] = regs->r5;                              \
-        pr_reg[6] = regs->r6;                              \
-        pr_reg[7] = regs->r7;                              \
-        pr_reg[8] = regs->r8;                              \
-        pr_reg[9] = regs->r9;                              \
-        pr_reg[10] = regs->r10;                            \
-        pr_reg[11] = regs->r11;                            \
-        pr_reg[12] = regs->r12;                            \
-        pr_reg[13] = regs->r13;                            \
-        pr_reg[14] = rdusp();               /* SP */       \
-        pr_reg[15] = regs->acr;             /* ACR */      \
-        pr_reg[16] = 0;                     /* BZ */       \
-        pr_reg[17] = rdvr();                /* VR */       \
-        pr_reg[18] = 0;                     /* PID */      \
-        pr_reg[19] = regs->srs;             /* SRS */      \
-        pr_reg[20] = 0;                     /* WZ */       \
-        pr_reg[21] = regs->exs;             /* EXS */      \
-        pr_reg[22] = regs->eda;             /* EDA */      \
-        pr_reg[23] = regs->mof;             /* MOF */      \
-        pr_reg[24] = 0;                     /* DZ */       \
-        pr_reg[25] = 0;                     /* EBP */      \
-        pr_reg[26] = regs->erp;             /* ERP */      \
-        pr_reg[27] = regs->srp;             /* SRP */      \
-        pr_reg[28] = 0;                     /* NRP */      \
-        pr_reg[29] = regs->ccs;             /* CCS */      \
-        pr_reg[30] = rdusp();               /* USP */      \
-        pr_reg[31] = regs->spc;             /* SPC */      \
-
-#endif /* _ASM_CRIS_ELF_H */
diff --git a/kernel/arch/cris/include/arch-v32/arch/io.h b/kernel/arch/cris/include/arch-v32/arch/io.h
deleted file mode 100644
index adc548435..000000000
--- a/kernel/arch/cris/include/arch-v32/arch/io.h
+++ /dev/null
@@ -1,140 +0,0 @@
-#ifndef _ASM_ARCH_CRIS_IO_H
-#define _ASM_ARCH_CRIS_IO_H
-
-#include <linux/spinlock.h>
-#include <hwregs/reg_map.h>
-#include <hwregs/reg_rdwr.h>
-#include <hwregs/gio_defs.h>
-
-enum crisv32_io_dir
-{
-  crisv32_io_dir_in = 0,
-  crisv32_io_dir_out = 1
-};
-
-struct crisv32_ioport
-{
-  volatile unsigned long *oe;
-  volatile unsigned long *data;
-  volatile unsigned long *data_in;
-  unsigned int pin_count;
-  spinlock_t lock;
-};
-
-struct crisv32_iopin
-{
-  struct crisv32_ioport* port;
-  int bit;
-};
-
-extern struct crisv32_ioport crisv32_ioports[];
-
-extern struct crisv32_iopin crisv32_led1_green;
-extern struct crisv32_iopin crisv32_led1_red;
-extern struct crisv32_iopin crisv32_led2_green;
-extern struct crisv32_iopin crisv32_led2_red;
-extern struct crisv32_iopin crisv32_led3_green;
-extern struct crisv32_iopin crisv32_led3_red;
-
-extern struct crisv32_iopin crisv32_led_net0_green;
-extern struct crisv32_iopin crisv32_led_net0_red;
-extern struct crisv32_iopin crisv32_led_net1_green;
-extern struct crisv32_iopin crisv32_led_net1_red;
-
-static inline void crisv32_io_set(struct crisv32_iopin *iopin, int val)
-{
-	unsigned long flags;
-	spin_lock_irqsave(&iopin->port->lock, flags);
-
-	if (iopin->port->data) {
-		if (val)
-			*iopin->port->data |= iopin->bit;
-		else
-			*iopin->port->data &= ~iopin->bit;
-	}
-
-	spin_unlock_irqrestore(&iopin->port->lock, flags);
-}
-
-static inline void crisv32_io_set_dir(struct crisv32_iopin* iopin,
-			       enum crisv32_io_dir dir)
-{
-	unsigned long flags;
-	spin_lock_irqsave(&iopin->port->lock, flags);
-
-	if (iopin->port->oe) {
-		if (dir == crisv32_io_dir_in)
-			*iopin->port->oe &= ~iopin->bit;
-		else
-			*iopin->port->oe |= iopin->bit;
-	}
-
-	spin_unlock_irqrestore(&iopin->port->lock, flags);
-}
-
-static inline int crisv32_io_rd(struct crisv32_iopin* iopin)
-{
-	return ((*iopin->port->data_in & iopin->bit) ? 1 : 0);
-}
-
-int crisv32_io_get(struct crisv32_iopin* iopin,
-                   unsigned int port, unsigned int pin);
-int crisv32_io_get_name(struct crisv32_iopin* iopin,
-			const char *name);
-
-#define CRIS_LED_OFF    0x00
-#define CRIS_LED_GREEN  0x01
-#define CRIS_LED_RED    0x02
-#define CRIS_LED_ORANGE (CRIS_LED_GREEN | CRIS_LED_RED)
-
-#if (defined(CONFIG_ETRAX_NBR_LED_GRP_ONE) || defined(CONFIG_ETRAX_NBR_LED_GRP_TWO))
-#define CRIS_LED_NETWORK_GRP0_SET(x)                          \
-	do {                                             \
-		CRIS_LED_NETWORK_GRP0_SET_G((x) & CRIS_LED_GREEN); \
-		CRIS_LED_NETWORK_GRP0_SET_R((x) & CRIS_LED_RED);   \
-	} while (0)
-#else
-#define CRIS_LED_NETWORK_GRP0_SET(x) while (0) {}
-#endif
-
-#define CRIS_LED_NETWORK_GRP0_SET_G(x) \
-	crisv32_io_set(&crisv32_led_net0_green, !(x));
-
-#define CRIS_LED_NETWORK_GRP0_SET_R(x) \
-	crisv32_io_set(&crisv32_led_net0_red, !(x));
-
-#if defined(CONFIG_ETRAX_NBR_LED_GRP_TWO)
-#define CRIS_LED_NETWORK_GRP1_SET(x)                          \
-	do {                                             \
-		CRIS_LED_NETWORK_GRP1_SET_G((x) & CRIS_LED_GREEN); \
-		CRIS_LED_NETWORK_GRP1_SET_R((x) & CRIS_LED_RED);   \
-	} while (0)
-#else
-#define CRIS_LED_NETWORK_GRP1_SET(x) while (0) {}
-#endif
-
-#define CRIS_LED_NETWORK_GRP1_SET_G(x) \
-	crisv32_io_set(&crisv32_led_net1_green, !(x));
-
-#define CRIS_LED_NETWORK_GRP1_SET_R(x) \
-	crisv32_io_set(&crisv32_led_net1_red, !(x));
-
-#define CRIS_LED_ACTIVE_SET(x)                           \
-	do {                                        \
-		CRIS_LED_ACTIVE_SET_G((x) & CRIS_LED_GREEN);  \
-		CRIS_LED_ACTIVE_SET_R((x) & CRIS_LED_RED);    \
-	} while (0)
-
-#define CRIS_LED_ACTIVE_SET_G(x) \
-	crisv32_io_set(&crisv32_led2_green, !(x));
-#define CRIS_LED_ACTIVE_SET_R(x) \
-	crisv32_io_set(&crisv32_led2_red, !(x));
-#define CRIS_LED_DISK_WRITE(x) \
-         do{\
-		crisv32_io_set(&crisv32_led3_green, !(x)); \
-		crisv32_io_set(&crisv32_led3_red, !(x));   \
-        }while(0)
-#define CRIS_LED_DISK_READ(x) \
-	crisv32_io_set(&crisv32_led3_green, !(x));
-
-#endif
diff --git a/kernel/arch/cris/include/arch-v32/arch/irq.h b/kernel/arch/cris/include/arch-v32/arch/irq.h
index 0c1b4d3a3..8270a1bbf 100644
--- a/kernel/arch/cris/include/arch-v32/arch/irq.h
+++ b/kernel/arch/cris/include/arch-v32/arch/irq.h
@@ -4,7 +4,7 @@
 #include <hwregs/intr_vect.h>
 
 /* Number of non-cpu interrupts. */
-#define NR_IRQS NBR_INTR_VECT /* Exceptions + IRQs */
+#define NR_IRQS (NBR_INTR_VECT + 256) /* Exceptions + IRQs */
 #define FIRST_IRQ 0x31 /* Exception number for first IRQ */
 #define NR_REAL_IRQS (NBR_INTR_VECT - FIRST_IRQ) /* IRQs */
 #if NR_REAL_IRQS > 32
diff --git a/kernel/arch/cris/include/arch-v32/arch/irqflags.h b/kernel/arch/cris/include/arch-v32/arch/irqflags.h
index 041851f8e..5f6fddf99 100644
--- a/kernel/arch/cris/include/arch-v32/arch/irqflags.h
+++ b/kernel/arch/cris/include/arch-v32/arch/irqflags.h
@@ -2,7 +2,7 @@
 #define __ASM_CRIS_ARCH_IRQFLAGS_H
 
 #include <linux/types.h>
-#include <arch/ptrace.h>
+#include <asm/ptrace.h>
 
 static inline unsigned long arch_local_save_flags(void)
 {
diff --git a/kernel/arch/cris/include/arch-v32/arch/ptrace.h b/kernel/arch/cris/include/arch-v32/arch/ptrace.h
deleted file mode 100644
index 19773d3bd..000000000
--- a/kernel/arch/cris/include/arch-v32/arch/ptrace.h
+++ /dev/null
@@ -1,118 +0,0 @@
-#ifndef _CRIS_ARCH_PTRACE_H
-#define _CRIS_ARCH_PTRACE_H
-
-/* Register numbers in the ptrace system call interface */
-
-#define PT_ORIG_R10  0
-#define PT_R0        1
-#define PT_R1        2
-#define PT_R2        3
-#define PT_R3        4
-#define PT_R4        5
-#define PT_R5        6
-#define PT_R6        7
-#define PT_R7        8
-#define PT_R8        9
-#define PT_R9        10
-#define PT_R10       11
-#define PT_R11       12
-#define PT_R12       13
-#define PT_R13       14
-#define PT_ACR       15
-#define PT_SRS       16
-#define PT_MOF       17
-#define PT_SPC       18
-#define PT_CCS       19
-#define PT_SRP       20
-#define PT_ERP       21    /* This is actually the debugged process' PC */
-#define PT_EXS       22
-#define PT_EDA       23
-#define PT_USP       24    /* special case - USP is not in the pt_regs */
-#define PT_PPC       25    /* special case - pseudo PC */
-#define PT_BP        26    /* Base number for BP registers. */
-#define PT_BP_CTRL   26    /* BP control register. */
-#define PT_MAX       40
-
-/* Condition code bit numbers. */
-#define C_CCS_BITNR 0
-#define V_CCS_BITNR 1
-#define Z_CCS_BITNR 2
-#define N_CCS_BITNR 3
-#define X_CCS_BITNR 4
-#define I_CCS_BITNR 5
-#define U_CCS_BITNR 6
-#define P_CCS_BITNR 7
-#define R_CCS_BITNR 8
-#define S_CCS_BITNR 9
-#define M_CCS_BITNR 30
-#define Q_CCS_BITNR 31
-#define CCS_SHIFT   10 /* Shift count for each level in CCS */
-
-/* pt_regs not only specifices the format in the user-struct during
- * ptrace but is also the frame format used in the kernel prologue/epilogues
- * themselves
- */
-
-struct pt_regs {
-	unsigned long orig_r10;
-	/* pushed by movem r13, [sp] in SAVE_ALL. */
-	unsigned long r0;
-	unsigned long r1;
-	unsigned long r2;
-	unsigned long r3;
-	unsigned long r4;
-	unsigned long r5;
-	unsigned long r6;
-	unsigned long r7;
-	unsigned long r8;
-	unsigned long r9;
-	unsigned long r10;
-	unsigned long r11;
-	unsigned long r12;
-	unsigned long r13;
-	unsigned long acr;
-	unsigned long srs;
-	unsigned long mof;
-	unsigned long spc;
-	unsigned long ccs;
-	unsigned long srp;
-	unsigned long erp; /* This is actually the debugged process' PC */
-	/* For debugging purposes; saved only when needed. */
-	unsigned long exs;
-	unsigned long eda;
-};
-
-/* switch_stack is the extra stuff pushed onto the stack in _resume (entry.S)
- * when doing a context-switch. it is used (apart from in resume) when a new
- * thread is made and we need to make _resume (which is starting it for the
- * first time) realise what is going on.
- *
- * Actually, the use is very close to the thread struct (TSS) in that both the
- * switch_stack and the TSS are used to keep thread stuff when switching in
- * _resume.
- */
-
-struct switch_stack {
-	unsigned long r0;
-	unsigned long r1;
-	unsigned long r2;
-	unsigned long r3;
-	unsigned long r4;
-	unsigned long r5;
-	unsigned long r6;
-	unsigned long r7;
-	unsigned long r8;
-	unsigned long r9;
-	unsigned long return_ip; /* ip that _resume will return to */
-};
-
-#ifdef __KERNEL__
-
-#define arch_has_single_step() (1)
-#define user_mode(regs) (((regs)->ccs & (1 << (U_CCS_BITNR + CCS_SHIFT))) != 0)
-#define instruction_pointer(regs) ((regs)->erp)
-#define profile_pc(regs) instruction_pointer(regs)
-
-#endif  /*  __KERNEL__  */
-
-#endif