Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc

Pull sparc updates from David Miller:
 "Some 32-bit kgdb cleanups from Sam Ravnborg, and a hugepage TLB flush
  overhead fix on 64-bit from Nitin Gupta"

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc:
  sparc64: Reduce TLB flushes during hugepte changes
  aeroflex/greth: fix warning about unused variable
  openprom: fix warning
  sparc32: drop superfluous cast in calls to __nocache_pa()
  sparc32: fix build with STRICT_MM_TYPECHECKS
  sparc32: use proper prototype for trapbase
  sparc32: drop local prototype in kgdb_32
  sparc32: drop hardcoding trap_level in kgdb_trap

4 files changed, 11 insertions, 15 deletions

diff --git a/arch/sparc/kernel/entry.S b/arch/sparc/kernel/entry.S
index 51aa6e86a5f8..07918ab3062e 100644
--- a/arch/sparc/kernel/entry.S
+++ b/arch/sparc/kernel/entry.S
@@ -1225,20 +1225,18 @@ breakpoint_trap:
 	RESTORE_ALL
 
 #ifdef CONFIG_KGDB
-	.align	4
-	.globl	kgdb_trap_low
-	.type	kgdb_trap_low,#function
-kgdb_trap_low:
+	ENTRY(kgdb_trap_low)
 	rd	%wim,%l3
 	SAVE_ALL
 	wr 	%l0, PSR_ET, %psr
 	WRITE_PAUSE
 
+	mov	%l7, %o0		! trap_level
 	call	kgdb_trap
-	 add	%sp, STACKFRAME_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o1	! struct pt_regs *regs
 
 	RESTORE_ALL
-	.size	kgdb_trap_low,.-kgdb_trap_low
+	ENDPROC(kgdb_trap_low)
 #endif
 
 	.align	4
diff --git a/arch/sparc/kernel/kernel.h b/arch/sparc/kernel/kernel.h
index 5057ec2e4af6..c9804551262c 100644
--- a/arch/sparc/kernel/kernel.h
+++ b/arch/sparc/kernel/kernel.h
@@ -127,6 +127,7 @@ extern unsigned int t_nmi[];
 extern unsigned int linux_trap_ipi15_sun4d[];
 extern unsigned int linux_trap_ipi15_sun4m[];
 
+extern struct tt_entry trapbase;
 extern struct tt_entry trapbase_cpu1;
 extern struct tt_entry trapbase_cpu2;
 extern struct tt_entry trapbase_cpu3;
diff --git a/arch/sparc/kernel/kgdb_32.c b/arch/sparc/kernel/kgdb_32.c
index dcf210811af4..6e8e318c57be 100644
--- a/arch/sparc/kernel/kgdb_32.c
+++ b/arch/sparc/kernel/kgdb_32.c
@@ -12,7 +12,8 @@
 #include <asm/irq.h>
 #include <asm/cacheflush.h>
 
-extern unsigned long trapbase;
+#include "kernel.h"
+#include "entry.h"
 
 void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
 {
@@ -133,21 +134,19 @@ int kgdb_arch_handle_exception(int e_vector, int signo, int err_code,
 	return -1;
 }
 
-extern void do_hw_interrupt(struct pt_regs *regs, unsigned long type);
-
-asmlinkage void kgdb_trap(struct pt_regs *regs)
+asmlinkage void kgdb_trap(unsigned long trap_level, struct pt_regs *regs)
 {
 	unsigned long flags;
 
 	if (user_mode(regs)) {
-		do_hw_interrupt(regs, 0xfd);
+		do_hw_interrupt(regs, trap_level);
 		return;
 	}
 
 	flushw_all();
 
 	local_irq_save(flags);
-	kgdb_handle_exception(0x172, SIGTRAP, 0, regs);
+	kgdb_handle_exception(trap_level, SIGTRAP, 0, regs);
 	local_irq_restore(flags);
 }
 
diff --git a/arch/sparc/kernel/setup_32.c b/arch/sparc/kernel/setup_32.c
index 69d75ff1c25c..c4e65cb3280f 100644
--- a/arch/sparc/kernel/setup_32.c
+++ b/arch/sparc/kernel/setup_32.c
@@ -68,8 +68,6 @@ struct screen_info screen_info = {
  * prints out pretty messages and returns.
  */
 
-extern unsigned long trapbase;
-
 /* Pretty sick eh? */
 static void prom_sync_me(void)
 {
@@ -300,7 +298,7 @@ void __init setup_arch(char **cmdline_p)
 	int i;
 	unsigned long highest_paddr;
 
-	sparc_ttable = (struct tt_entry *) &trapbase;
+	sparc_ttable = &trapbase;
 
 	/* Initialize PROM console and command line. */
 	*cmdline_p = prom_getbootargs();