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

Pull MIPS updates from Ralf Baechle:
 "A fair number of fixes all across arch/mips.  Nothing really stands
  out though APRP, the FPU code and syscall tracing code received
  multiple patches those all were small"

* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus:
  MIPS: mark O32+FP64 experimental for now
  MIPS: ftrace: Fix icache flush range error
  MIPS: Fix syscall tracing interface
  MIPS: asm: syscall: Fix copying system call arguments
  MIPS: Octeon: Fix fall through on bar type OCTEON_DMA_BAR_TYPE_SMALL
  MIPS: FPU: Fix conflict of register usage
  MIPS: Replace CONFIG_MIPS64 and CONFIG_MIPS32_R2
  MIPS: math-emu: Fix prefx detection and COP1X function field definition
  MIPS: APRP: Choose the correct VPE loader by fixing the linking
  MIPS: APRP: Unregister rtlx interrupt hook at module exit
  MIPS: APRP: Fix the linking of rtlx interrupt hook
  MIPS: bcm47xx: Include missing errno.h for ENXIO
  MIPS: Alchemy: Fix unchecked kstrtoul return value
  MIPS: Fix randconfig build error.

4 files changed, 11 insertions, 9 deletions

diff --git a/arch/mips/include/asm/asmmacro.h b/arch/mips/include/asm/asmmacro.h
index 3220c93ea981..69a9a22d014a 100644
--- a/arch/mips/include/asm/asmmacro.h
+++ b/arch/mips/include/asm/asmmacro.h
@@ -106,7 +106,7 @@
         .endm
 
         .macro  fpu_save_double thread status tmp
-#if defined(CONFIG_MIPS64) || defined(CONFIG_CPU_MIPS32_R2)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2)
         sll     \tmp, \status, 5
         bgez    \tmp, 10f
         fpu_save_16odd \thread
@@ -159,7 +159,7 @@
         .endm
 
         .macro  fpu_restore_double thread status tmp
-#if defined(CONFIG_MIPS64) || defined(CONFIG_CPU_MIPS32_R2)
+#if defined(CONFIG_64BIT) || defined(CONFIG_CPU_MIPS32_R2)
         sll     \tmp, \status, 5
         bgez    \tmp, 10f                               # 16 register mode?
 
diff --git a/arch/mips/include/asm/fpu.h b/arch/mips/include/asm/fpu.h
index 6b9749540edf..58e50cbdb1a6 100644
--- a/arch/mips/include/asm/fpu.h
+++ b/arch/mips/include/asm/fpu.h
@@ -57,7 +57,7 @@ static inline int __enable_fpu(enum fpu_mode mode)
                 return 0;
 
         case FPU_64BIT:
-#if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_MIPS64))
+#if !(defined(CONFIG_CPU_MIPS32_R2) || defined(CONFIG_64BIT))
                 /* we only have a 32-bit FPU */
                 return SIGFPE;
 #endif
diff --git a/arch/mips/include/asm/syscall.h b/arch/mips/include/asm/syscall.h
index 33e8dbfc1b63..f35b131977e6 100644
--- a/arch/mips/include/asm/syscall.h
+++ b/arch/mips/include/asm/syscall.h
@@ -13,6 +13,7 @@
 #ifndef __ASM_MIPS_SYSCALL_H
 #define __ASM_MIPS_SYSCALL_H
 
+#include <linux/compiler.h>
 #include <linux/audit.h>
 #include <linux/elf-em.h>
 #include <linux/kernel.h>
@@ -39,14 +40,14 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
 
 #ifdef CONFIG_32BIT
         case 4: case 5: case 6: case 7:
-                return get_user(*arg, (int *)usp + 4 * n);
+                return get_user(*arg, (int *)usp + n);
 #endif
 
 #ifdef CONFIG_64BIT
         case 4: case 5: case 6: case 7:
 #ifdef CONFIG_MIPS32_O32
                 if (test_thread_flag(TIF_32BIT_REGS))
-                        return get_user(*arg, (int *)usp + 4 * n);
+                        return get_user(*arg, (int *)usp + n);
                 else
 #endif
                         *arg = regs->regs[4 + n];
@@ -57,6 +58,8 @@ static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
         default:
                 BUG();
         }
+
+        unreachable();
 }
 
 static inline long syscall_get_return_value(struct task_struct *task,
@@ -83,11 +86,10 @@ static inline void syscall_get_arguments(struct task_struct *task,
                                          unsigned int i, unsigned int n,
                                          unsigned long *args)
 {
-        unsigned long arg;
         int ret;
 
         while (n--)
-                ret |= mips_get_syscall_arg(&arg, task, regs, i++);
+                ret |= mips_get_syscall_arg(args++, task, regs, i++);
 
         /*
          * No way to communicate an error because this is a void function.
diff --git a/arch/mips/include/uapi/asm/inst.h b/arch/mips/include/uapi/asm/inst.h
index b39ba25b41cc..f25181b19941 100644
--- a/arch/mips/include/uapi/asm/inst.h
+++ b/arch/mips/include/uapi/asm/inst.h
@@ -163,8 +163,8 @@ enum cop1_sdw_func {
  */
 enum cop1x_func {
         lwxc1_op     =  0x00, ldxc1_op     =  0x01,
-        pfetch_op    =  0x07, swxc1_op     =  0x08,
-        sdxc1_op     =  0x09, madd_s_op    =  0x20,
+        swxc1_op     =  0x08, sdxc1_op     =  0x09,
+        pfetch_op    =  0x0f, madd_s_op    =  0x20,
         madd_d_op    =  0x21, madd_e_op    =  0x22,
         msub_s_op    =  0x28, msub_d_op    =  0x29,
         msub_e_op    =  0x2a, nmadd_s_op   =  0x30,