Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/blackfin-2.6: (33 commits)
  Blackfin arch: hook up some missing new system calls
  Blackfin arch: fix missing digit in SCLK range checking
  Blackfin arch: do not muck with the UART during boot -- let the serial driver worry about it
  Blackfin arch: clear EMAC_SYSTAT during IRQ init rather than early head.S as we dont need it setup that early
  Blackfin arch: use %pF when printing out the double fault address so we get symbol names
  Blackfin arch: add support for the BlackStamp board
  Blackfin arch: Allow ins functions to have a low latency version
  Blackfin arch: Print out doublefault addresses, so debug can occur
  Blackfin arch: shuffle related prototypes together -- no functional changes
  Blackfin arch: move fixed code defines into fixed_code.h as very few things actually need to know these details
  Blackfin arch: mark some functions as __init as they are only called from __init functions
  Blackfin arch: delete dead prototypes
  Blackfin arch: cleanup cache lock code
  Blackfin arch: workaround SIC_IWR1 reset bug, by keeping MDMA0/1 always enabled in SIC_IWR1.
  Blackfin arch: Fix bug - when expanding the trace buffer, it does not print out the decoded instruction.
  Blackfin arch: Fix Bug - System with EMAC driver enabled - Core not idling
  Blackfin arch: delete unused cache functions
  Blackfin arch: convert L2 defines to be the same as the L1 defines
  Blackfin arch: unify the duplicated portions of __start and split mach-specific pieces into _mach_early_start where they will be easier to trim over time
  Blackfin arch: add asm/thread_info.h for THREAD_SIZE define
  ...

1 files changed, 24 insertions, 10 deletions

diff --git a/arch/blackfin/mach-common/entry.S b/arch/blackfin/mach-common/entry.S
index eceb484d90f9..117c01c2c6b0 100644
--- a/arch/blackfin/mach-common/entry.S
+++ b/arch/blackfin/mach-common/entry.S
@@ -158,14 +158,16 @@ ENTRY(_ex_single_step)
 	cc = r7 == r6;
 	if cc jump _bfin_return_from_exception;
 
+#ifdef CONFIG_KGDB
 	/* Don't do single step in hardware exception handler */
         p5.l = lo(IPEND);
         p5.h = hi(IPEND);
 	r6 = [p5];
+	cc = bittst(r6, 4);
+	if cc jump _bfin_return_from_exception;
 	cc = bittst(r6, 5);
 	if cc jump _bfin_return_from_exception;
 
-#ifdef CONFIG_KGDB
 	/* skip single step if current interrupt priority is higher than
 	 * that of the first instruction, from which gdb starts single step */
 	r6 >>= 6;
@@ -186,17 +188,27 @@ ENTRY(_ex_single_step)
 	if cc jump .Ldo_single_step;
 	r6 += -1;
 	cc = r6 < r7;
-	if cc jump _bfin_return_from_exception;
+	if cc jump 1f;
 .Ldo_single_step:
-#endif
-
+#else
 	/* If we were in user mode, do the single step normally.  */
+	p5.l = lo(IPEND);
+	p5.h = hi(IPEND);
 	r6 = [p5];
 	r7 = 0xffe0 (z);
 	r7 = r7 & r6;
 	cc = r7 == 0;
-	if cc jump 1f;
+	if !cc jump 1f;
+#endif
 
+	/* Single stepping only a single instruction, so clear the trace
+	 * bit here.  */
+	r7 = syscfg;
+	bitclr (r7, 0);
+	syscfg = R7;
+	jump _ex_trap_c;
+
+1:
 	/*
 	 * We were in an interrupt handler.  By convention, all of them save
 	 * SYSCFG with their first instruction, so by checking whether our
@@ -224,15 +236,11 @@ ENTRY(_ex_single_step)
 	cc = R7 == R6;
 	if !cc jump _bfin_return_from_exception;
 
-1:
-	/* Single stepping only a single instruction, so clear the trace
-	 * bit here.  */
 	r7 = syscfg;
 	bitclr (r7, 0);
 	syscfg = R7;
 
-	jump _ex_trap_c;
-
+	/* Fall through to _bfin_return_from_exception.  */
 ENDPROC(_ex_single_step)
 
 ENTRY(_bfin_return_from_exception)
@@ -1414,6 +1422,12 @@ ENTRY(_sys_call_table)
 	.long _sys_semtimedop
 	.long _sys_timerfd_settime
 	.long _sys_timerfd_gettime
+	.long _sys_signalfd4		/* 360 */
+	.long _sys_eventfd2
+	.long _sys_epoll_create1
+	.long _sys_dup3
+	.long _sys_pipe2
+	.long _sys_inotify_init1	/* 365 */
 
 	.rept NR_syscalls-(.-_sys_call_table)/4
 	.long _sys_ni_syscall