7 files changed, 60 insertions, 11 deletions
diff --git a/arch/arm/kernel/calls.S b/arch/arm/kernel/calls.S
index e8f74363328c..f7598cbc7ec5 100644
--- a/arch/arm/kernel/calls.S
+++ b/arch/arm/kernel/calls.S
@@ -110,7 +110,7 @@
 		CALL(sys_ni_syscall)		/* was sys_profil */
 		CALL(sys_statfs)
 /* 100 */	CALL(sys_fstatfs)
-		CALL(sys_ni_syscall)
+		CALL(sys_ni_syscall)		/* sys_ioperm */
 		CALL(OBSOLETE(ABI(sys_socketcall, sys_oabi_socketcall)))
 		CALL(sys_syslog)
 		CALL(sys_setitimer)
@@ -132,7 +132,7 @@
 /* 120 */	CALL(sys_clone_wrapper)
 		CALL(sys_setdomainname)
 		CALL(sys_newuname)
-		CALL(sys_ni_syscall)
+		CALL(sys_ni_syscall)		/* modify_ldt */
 		CALL(sys_adjtimex)
 /* 125 */	CALL(sys_mprotect)
 		CALL(sys_sigprocmask)
@@ -146,7 +146,7 @@
 		CALL(sys_bdflush)
 /* 135 */	CALL(sys_sysfs)
 		CALL(sys_personality)
-		CALL(sys_ni_syscall)		/* CALL(_sys_afs_syscall) */
+		CALL(sys_ni_syscall)		/* reserved for afs_syscall */
 		CALL(sys_setfsuid16)
 		CALL(sys_setfsgid16)
 /* 140 */	CALL(sys_llseek)
@@ -175,7 +175,7 @@
 		CALL(sys_arm_mremap)
 		CALL(sys_setresuid16)
 /* 165 */	CALL(sys_getresuid16)
-		CALL(sys_ni_syscall)
+		CALL(sys_ni_syscall)		/* vm86 */
 		CALL(sys_ni_syscall)		/* was sys_query_module */
 		CALL(sys_poll)
 		CALL(sys_nfsservctl)
@@ -197,8 +197,8 @@
 /* 185 */	CALL(sys_capset)
 		CALL(sys_sigaltstack_wrapper)
 		CALL(sys_sendfile)
-		CALL(sys_ni_syscall)
-		CALL(sys_ni_syscall)
+		CALL(sys_ni_syscall)		/* getpmsg */
+		CALL(sys_ni_syscall)		/* putpmsg */
 /* 190 */	CALL(sys_vfork_wrapper)
 		CALL(sys_getrlimit)
 		CALL(sys_mmap2)
@@ -344,6 +344,18 @@
 		CALL(sys_readlinkat)
 		CALL(sys_fchmodat)
 		CALL(sys_faccessat)
+/* 335 */	CALL(sys_ni_syscall)		/* eventually pselect6 */
+		CALL(sys_ni_syscall)		/* eventually ppoll */
+		CALL(sys_unshare)
+		CALL(sys_set_robust_list)
+		CALL(sys_get_robust_list)
+/* 340 */	CALL(sys_splice)
+		CALL(sys_arm_sync_file_range)
+		CALL(sys_tee)
+		CALL(sys_vmsplice)
+		CALL(sys_move_pages)
+/* 345 */	CALL(sys_getcpu)
+		CALL(sys_ni_syscall)		/* eventually epoll_pwait */
 #ifndef syscalls_counted
 .equ syscalls_padding, ((NR_syscalls + 3) & ~3) - NR_syscalls
 #define syscalls_counted
diff --git a/arch/arm/kernel/entry-armv.S b/arch/arm/kernel/entry-armv.S
index 2db42b18f53f..8517c3c3eb33 100644
--- a/arch/arm/kernel/entry-armv.S
+++ b/arch/arm/kernel/entry-armv.S
@@ -436,7 +436,7 @@ __und_usr:
 	usr_entry
 
 	tst	r3, #PSR_T_BIT			@ Thumb mode?
-	bne	fpundefinstr			@ ignore FP
+	bne	__und_usr_unknown		@ ignore FP
 	sub	r4, r2, #4
 
 	@
@@ -448,7 +448,7 @@ __und_usr:
 	@
 1:	ldrt	r0, [r4]
 	adr	r9, ret_from_exception
-	adr	lr, fpundefinstr
+	adr	lr, __und_usr_unknown
 	@
 	@ fallthrough to call_fpe
 	@
@@ -476,7 +476,9 @@ __und_usr:
  * Emulators may wish to make use of the following registers:
  *  r0  = instruction opcode.
  *  r2  = PC+4
+ *  r9  = normal "successful" return address
  *  r10 = this threads thread_info structure.
+ *  lr  = unrecognised instruction return address
  */
 call_fpe:
 	tst	r0, #0x08000000			@ only CDP/CPRT/LDC/STC have bit 27
@@ -545,10 +547,12 @@ do_fpe:
 
 	.data
 ENTRY(fp_enter)
-	.word	fpundefinstr
+	.word	no_fp
 	.text
 
-fpundefinstr:
+no_fp:	mov	pc, lr
+
+__und_usr_unknown:
 	mov	r0, sp
 	adr	lr, ret_from_exception
 	b	do_undefinstr
diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S
index d994561816a1..cf495a3084b3 100644
--- a/arch/arm/kernel/head.S
+++ b/arch/arm/kernel/head.S
@@ -22,6 +22,10 @@
 #include <asm/thread_info.h>
 #include <asm/system.h>
 
+#if (PHYS_OFFSET & 0x001fffff)
+#error "PHYS_OFFSET must be at an even 2MiB boundary!"
+#endif
+
 #define KERNEL_RAM_VADDR	(PAGE_OFFSET + TEXT_OFFSET)
 #define KERNEL_RAM_PADDR	(PHYS_OFFSET + TEXT_OFFSET)
 
@@ -251,7 +255,8 @@ __create_page_tables:
 	 * Then map first 1MB of ram in case it contains our boot params.
 	 */
 	add	r0, r4, #PAGE_OFFSET >> 18
-	orr	r6, r7, #PHYS_OFFSET
+	orr	r6, r7, #(PHYS_OFFSET & 0xff000000)
+	orr	r6, r6, #(PHYS_OFFSET & 0x00e00000)
 	str	r6, [r0]
 
 #ifdef CONFIG_XIP_KERNEL
diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index cf2bd4242803..bbab134cd82d 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -855,6 +855,7 @@ static const char *hwcap_str[] = {
 	"edsp",
 	"java",
 	"iwmmxt",
+	"crunch",
 	NULL
 };
 
diff --git a/arch/arm/kernel/sys_arm.c b/arch/arm/kernel/sys_arm.c
index 00c18d35913c..3d4fcbc16276 100644
--- a/arch/arm/kernel/sys_arm.c
+++ b/arch/arm/kernel/sys_arm.c
@@ -328,3 +328,16 @@ asmlinkage long sys_arm_fadvise64_64(int fd, int advice,
 {
 	return sys_fadvise64_64(fd, offset, len, advice);
 }
+
+/*
+ * Yet more syscall fsckage - we can't fit sys_sync_file_range's
+ * arguments into the available registers with EABI.  So, let's
+ * create an ARM specific syscall for this which has _sane_
+ * arguments.  (This incidentally also has an ABI-independent
+ * argument layout.)
+ */
+asmlinkage long sys_arm_sync_file_range(int fd, unsigned int flags,
+					loff_t offset, loff_t nbytes)
+{
+	return sys_sync_file_range(fd, offset, nbytes, flags);
+}
diff --git a/arch/arm/kernel/time.c b/arch/arm/kernel/time.c
index 6ff5e3ff6cb5..3c8cdcfe8d4a 100644
--- a/arch/arm/kernel/time.c
+++ b/arch/arm/kernel/time.c
@@ -29,6 +29,8 @@
 #include <linux/timer.h>
 #include <linux/irq.h>
 
+#include <linux/mc146818rtc.h>
+
 #include <asm/leds.h>
 #include <asm/thread_info.h>
 #include <asm/mach/time.h>
@@ -85,6 +87,17 @@ unsigned long long __attribute__((weak)) sched_clock(void)
 	return (unsigned long long)jiffies * (1000000000 / HZ);
 }
 
+/*
+ * An implementation of printk_clock() independent from
+ * sched_clock().  This avoids non-bootable kernels when
+ * printk_clock is enabled.
+ */
+unsigned long long printk_clock(void)
+{
+	return (unsigned long long)(jiffies - INITIAL_JIFFIES) *
+			(1000000000 / HZ);
+}
+
 static unsigned long next_rtc_update;
 
 /*
diff --git a/arch/arm/kernel/traps.c b/arch/arm/kernel/traps.c
index 042a12982e98..908915675edc 100644
--- a/arch/arm/kernel/traps.c
+++ b/arch/arm/kernel/traps.c
@@ -27,6 +27,7 @@
 #include <asm/uaccess.h>
 #include <asm/unistd.h>
 #include <asm/traps.h>
+#include <asm/io.h>
 
 #include "ptrace.h"
 #include "signal.h"