Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus

* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (71 commits)
  MIPS: Lasat: Fix botched changes to sysctl code.
  RTC: rtc-cmos.c: Fix warning on MIPS
  MIPS: Cleanup random differences beween lmo and Linus' kernel.
  MIPS: No longer hardwire CONFIG_EMBEDDED to y
  MIPS: Fix and enhance built-in kernel command line
  MIPS: eXcite: Remove platform.
  MIPS: Loongson: Cleanups of serial port support
  MIPS: Lemote 2F: Suspend CS5536 MFGPT Timer
  MIPS: Excite: move iodev_remove to .devexit.text
  MIPS: Lasat: Convert to proc_fops / seq_file
  MIPS: Cleanup signal code initialization
  MIPS: Modularize COP2 handling
  MIPS: Move EARLY_PRINTK to Kconfig.debug
  MIPS: Yeeloong 2F: Cleanup reset logic using the new ec_write function
  MIPS: Yeeloong 2F: Add LID open event as the wakeup event
  MIPS: Yeeloong 2F: Add basic EC operations
  MIPS: Move several variables from .bss to .init.data
  MIPS: Tracing: Make function graph tracer work with -mmcount-ra-address
  MIPS: Tracing: Reserve $12(t0) for mcount-ra-address of gcc 4.5
  MIPS: Tracing: Make ftrace for MIPS work without -fno-omit-frame-pointer
  ...

1 files changed, 22 insertions, 18 deletions

diff --git a/arch/mips/include/asm/stackframe.h b/arch/mips/include/asm/stackframe.h
index db0fa7b5aeaf..3b6da3330e32 100644
--- a/arch/mips/include/asm/stackframe.h
+++ b/arch/mips/include/asm/stackframe.h
@@ -51,9 +51,6 @@
 		LONG_S	v1, PT_ACX(sp)
 #else
 		mfhi	v1
-		LONG_S	v1, PT_HI(sp)
-		mflo	v1
-		LONG_S	v1, PT_LO(sp)
 #endif
 #ifdef CONFIG_32BIT
 		LONG_S	$8, PT_R8(sp)
@@ -62,10 +59,17 @@
 		LONG_S	$10, PT_R10(sp)
 		LONG_S	$11, PT_R11(sp)
 		LONG_S	$12, PT_R12(sp)
+#ifndef CONFIG_CPU_HAS_SMARTMIPS
+		LONG_S	v1, PT_HI(sp)
+		mflo	v1
+#endif
 		LONG_S	$13, PT_R13(sp)
 		LONG_S	$14, PT_R14(sp)
 		LONG_S	$15, PT_R15(sp)
 		LONG_S	$24, PT_R24(sp)
+#ifndef CONFIG_CPU_HAS_SMARTMIPS
+		LONG_S	v1, PT_LO(sp)
+#endif
 		.endm
 
 		.macro	SAVE_STATIC
@@ -83,15 +87,19 @@
 #ifdef CONFIG_SMP
 #ifdef CONFIG_MIPS_MT_SMTC
 #define PTEBASE_SHIFT	19	/* TCBIND */
+#define CPU_ID_REG CP0_TCBIND
+#define CPU_ID_MFC0 mfc0
+#elif defined(CONFIG_MIPS_PGD_C0_CONTEXT)
+#define PTEBASE_SHIFT	48	/* XCONTEXT */
+#define CPU_ID_REG CP0_XCONTEXT
+#define CPU_ID_MFC0 MFC0
 #else
 #define PTEBASE_SHIFT	23	/* CONTEXT */
+#define CPU_ID_REG CP0_CONTEXT
+#define CPU_ID_MFC0 MFC0
 #endif
 		.macro	get_saved_sp	/* SMP variation */
-#ifdef CONFIG_MIPS_MT_SMTC
-		mfc0	k0, CP0_TCBIND
-#else
-		MFC0	k0, CP0_CONTEXT
-#endif
+		CPU_ID_MFC0	k0, CPU_ID_REG
 #if defined(CONFIG_32BIT) || defined(KBUILD_64BIT_SYM32)
 		lui	k1, %hi(kernelsp)
 #else
@@ -107,11 +115,7 @@
 		.endm
 
 		.macro	set_saved_sp stackp temp temp2
-#ifdef CONFIG_MIPS_MT_SMTC
-		mfc0	\temp, CP0_TCBIND
-#else
-		MFC0	\temp, CP0_CONTEXT
-#endif
+		CPU_ID_MFC0	\temp, CPU_ID_REG
 		LONG_SRL	\temp, PTEBASE_SHIFT
 		LONG_S	\stackp, kernelsp(\temp)
 		.endm
@@ -166,7 +170,6 @@
 		LONG_S	$0, PT_R0(sp)
 		mfc0	v1, CP0_STATUS
 		LONG_S	$2, PT_R2(sp)
-		LONG_S	v1, PT_STATUS(sp)
 #ifdef CONFIG_MIPS_MT_SMTC
 		/*
 		 * Ideally, these instructions would be shuffled in
@@ -178,20 +181,21 @@
 		LONG_S	v1, PT_TCSTATUS(sp)
 #endif /* CONFIG_MIPS_MT_SMTC */
 		LONG_S	$4, PT_R4(sp)
-		mfc0	v1, CP0_CAUSE
 		LONG_S	$5, PT_R5(sp)
-		LONG_S	v1, PT_CAUSE(sp)
+		LONG_S	v1, PT_STATUS(sp)
+		mfc0	v1, CP0_CAUSE
 		LONG_S	$6, PT_R6(sp)
-		MFC0	v1, CP0_EPC
 		LONG_S	$7, PT_R7(sp)
+		LONG_S	v1, PT_CAUSE(sp)
+		MFC0	v1, CP0_EPC
 #ifdef CONFIG_64BIT
 		LONG_S	$8, PT_R8(sp)
 		LONG_S	$9, PT_R9(sp)
 #endif
-		LONG_S	v1, PT_EPC(sp)
 		LONG_S	$25, PT_R25(sp)
 		LONG_S	$28, PT_R28(sp)
 		LONG_S	$31, PT_R31(sp)
+		LONG_S	v1, PT_EPC(sp)
 		ori	$28, sp, _THREAD_MASK
 		xori	$28, _THREAD_MASK
 #ifdef CONFIG_CPU_CAVIUM_OCTEON