Merge branch 'for-upstream' of git://openrisc.net/jonas/linux

Pull OpenRISC updates from Jonas Bonn:
 "An equal number of bug fixes and trivial cleanups; no new features.

   - Two patches to fix errors thrown by the updated toolchain.

   - Three other bug fixes.

   - Four trivial cleanups."

* 'for-upstream' of git://openrisc.net/jonas/linux:
  openrisc: add missing header inclusion
  openrisc: really pass correct arg to schedule_tail
  Add bitops include needed for ext2 filesystem
  openrisc: update DTLB-miss handler last
  openrisc: fix up vmalloc page table loading
  openrisc idle: delete pm_idle
  openrisc: remove CONFIG_SYMBOL_PREFIX
  openrisc: avoid using function parameter regs in reset vector
  openrisc: remove unused current_regs

2 files changed, 19 insertions, 10 deletions

diff --git a/arch/openrisc/kernel/entry.S b/arch/openrisc/kernel/entry.S
index 54afd0a129f..d8a455ede5a 100644
--- a/arch/openrisc/kernel/entry.S
+++ b/arch/openrisc/kernel/entry.S
@@ -201,12 +201,17 @@ EXCEPTION_ENTRY(_bus_fault_handler)
 	 l.nop
 
 /* ---[ 0x300: Data Page Fault exception ]------------------------------- */
+EXCEPTION_ENTRY(_dtlb_miss_page_fault_handler)
+	l.and	r5,r5,r0
+	l.j	1f
+	 l.nop
 
 EXCEPTION_ENTRY(_data_page_fault_handler)
 	/* set up parameters for do_page_fault */
+	l.ori	r5,r0,0x300		   // exception vector
+1:
 	l.addi  r3,r1,0                    // pt_regs
 	/* r4 set be EXCEPTION_HANDLE */   // effective address of fault
-	l.ori   r5,r0,0x300                // exception vector
 
 	/*
 	 * __PHX__: TODO
@@ -276,12 +281,17 @@ EXCEPTION_ENTRY(_data_page_fault_handler)
 	l.nop
 
 /* ---[ 0x400: Insn Page Fault exception ]------------------------------- */
+EXCEPTION_ENTRY(_itlb_miss_page_fault_handler)
+	l.and	r5,r5,r0
+	l.j	1f
+	 l.nop
 
 EXCEPTION_ENTRY(_insn_page_fault_handler)
 	/* set up parameters for do_page_fault */
+	l.ori	r5,r0,0x400		   // exception vector
+1:
 	l.addi  r3,r1,0                    // pt_regs
 	/* r4 set be EXCEPTION_HANDLE */   // effective address of fault
-	l.ori   r5,r0,0x400                // exception vector
 	l.ori	r6,r0,0x0		   // !write access
 
 	/* call fault.c handler in or32/mm/fault.c */
@@ -1040,7 +1050,7 @@ ENTRY(_switch)
 	 * we are expected to have set up the arg to schedule_tail already,
 	 * hence we do so here unconditionally:
 	 */
-	l.lwz   r3,TI_STACK(r3)		/* Load 'prev' as schedule_tail arg */
+	l.lwz   r3,TI_TASK(r3)		/* Load 'prev' as schedule_tail arg */
 	l.jr	r9
 	 l.nop
 
diff --git a/arch/openrisc/kernel/head.S b/arch/openrisc/kernel/head.S
index 1088b5fca3b..1d3c9c28ac2 100644
--- a/arch/openrisc/kernel/head.S
+++ b/arch/openrisc/kernel/head.S
@@ -19,6 +19,7 @@
 #include <linux/threads.h>
 #include <linux/errno.h>
 #include <linux/init.h>
+#include <linux/serial_reg.h>
 #include <asm/processor.h>
 #include <asm/page.h>
 #include <asm/mmu.h>
@@ -291,9 +292,9 @@
 	/* Jump to .init code at _start which lives in the .head section
 	 * and will be discarded after boot.
 	 */
-	LOAD_SYMBOL_2_GPR(r4, _start)
-	tophys	(r3,r4)			/* MMU disabled */
-	l.jr	r3
+	LOAD_SYMBOL_2_GPR(r15, _start)
+	tophys	(r13,r15)			/* MMU disabled */
+	l.jr	r13
 	 l.nop
 
 /* ---[ 0x200: BUS exception ]------------------------------------------- */
@@ -1069,8 +1070,7 @@ d_pte_not_present:
 	EXCEPTION_LOAD_GPR4
 	EXCEPTION_LOAD_GPR5
 	EXCEPTION_LOAD_GPR6
-	l.j	_dispatch_do_dpage_fault
-	l.nop
+	EXCEPTION_HANDLE(_dtlb_miss_page_fault_handler)
 
 /* ==============================================[ ITLB miss handler ]=== */
 ENTRY(itlb_miss_handler)
@@ -1192,8 +1192,7 @@ i_pte_not_present:
 	EXCEPTION_LOAD_GPR4
 	EXCEPTION_LOAD_GPR5
 	EXCEPTION_LOAD_GPR6
-	l.j	_dispatch_do_ipage_fault
-	l.nop
+	EXCEPTION_HANDLE(_itlb_miss_page_fault_handler)
 
 /* ==============================================[ boot tlb handlers ]=== */