Merge branch '4.3-fixes' into mips-for-linux-next

5 files changed, 26 insertions, 4 deletions

diff --git a/arch/mips/include/asm/atomic.h b/arch/mips/include/asm/atomic.h
index 4c42fd9af777..b34781752244 100644
--- a/arch/mips/include/asm/atomic.h
+++ b/arch/mips/include/asm/atomic.h
@@ -507,7 +507,7 @@ static __inline__ long atomic64_sub_if_positive(long i, atomic64_t * v)
  * @u: ...unless v is equal to u.
  *
  * Atomically adds @a to @v, so long as it was not @u.
- * Returns the old value of @v.
+ * Returns true iff @v was not @u.
  */
 static __inline__ int atomic64_add_unless(atomic64_t *v, long a, long u)
 {
diff --git a/arch/mips/include/asm/cdmm.h b/arch/mips/include/asm/cdmm.h
index bece2064cc8c..c06dbf8ba937 100644
--- a/arch/mips/include/asm/cdmm.h
+++ b/arch/mips/include/asm/cdmm.h
@@ -84,6 +84,17 @@ void mips_cdmm_driver_unregister(struct mips_cdmm_driver *);
         module_driver(__mips_cdmm_driver, mips_cdmm_driver_register, \
                         mips_cdmm_driver_unregister)
 
+/*
+ * builtin_mips_cdmm_driver() - Helper macro for drivers that don't do anything
+ * special in init and have no exit. This eliminates some boilerplate. Each
+ * driver may only use this macro once, and calling it replaces device_initcall
+ * (or in some cases, the legacy __initcall). This is meant to be a direct
+ * parallel of module_mips_cdmm_driver() above but without the __exit stuff that
+ * is not used for builtin cases.
+ */
+#define builtin_mips_cdmm_driver(__mips_cdmm_driver) \
+        builtin_driver(__mips_cdmm_driver, mips_cdmm_driver_register)
+
 /* drivers/tty/mips_ejtag_fdc.c */
 
 #ifdef CONFIG_MIPS_EJTAG_FDC_EARLYCON
diff --git a/arch/mips/kernel/idle.c b/arch/mips/kernel/idle.c
index 35af61530de1..46794d64c0bf 100644
--- a/arch/mips/kernel/idle.c
+++ b/arch/mips/kernel/idle.c
@@ -171,7 +171,6 @@ void __init check_wait(void)
         case CPU_BMIPS3300:
         case CPU_BMIPS4350:
         case CPU_BMIPS4380:
-        case CPU_BMIPS5000:
         case CPU_CAVIUM_OCTEON:
         case CPU_CAVIUM_OCTEON_PLUS:
         case CPU_CAVIUM_OCTEON2:
@@ -182,7 +181,9 @@ void __init check_wait(void)
         case CPU_XLP:
                 cpu_wait = r4k_wait;
                 break;
-
+        case CPU_BMIPS5000:
+                cpu_wait = r4k_wait_irqoff;
+                break;
         case CPU_RM7000:
                 cpu_wait = rm7k_wait_irqoff;
                 break;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 4e106d52f304..886cb1976e90 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -1857,12 +1857,14 @@ void __noreturn nmi_exception_handler(struct pt_regs *regs)
 {
         char str[100];
 
+        nmi_enter();
         raw_notifier_call_chain(&nmi_chain, 0, regs);
         bust_spinlocks(1);
         snprintf(str, 100, "CPU%d NMI taken, CP0_EPC=%lx\n",
                  smp_processor_id(), regs->cp0_epc);
         regs->cp0_epc = read_c0_errorepc();
         die(str, regs);
+        nmi_exit();
 }
 
 #define VECTORSPACING 0x100     /* for EI/VI mode */
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index f4c23d9023be..0a93e83cd014 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -17,7 +17,9 @@ OUTPUT_ARCH(mips)
 ENTRY(kernel_entry)
 PHDRS {
         text PT_LOAD FLAGS(7);  /* RWX */
+#ifndef CONFIG_CAVIUM_OCTEON_SOC
         note PT_NOTE FLAGS(4);  /* R__ */
+#endif /* CAVIUM_OCTEON_SOC */
 }
 
 #ifdef CONFIG_32BIT
@@ -71,7 +73,12 @@ SECTIONS
                 __stop___dbe_table = .;
         }
 
-        NOTES :text :note
+#ifdef CONFIG_CAVIUM_OCTEON_SOC
+#define NOTES_HEADER
+#else /* CONFIG_CAVIUM_OCTEON_SOC */
+#define NOTES_HEADER :note
+#endif /* CONFIG_CAVIUM_OCTEON_SOC */
+        NOTES :text NOTES_HEADER
         .dummy : { *(.dummy) } :text
 
         _sdata = .;                     /* Start of data section */
@@ -186,6 +193,7 @@ SECTIONS
         DISCARDS
         /DISCARD/ : {
                 /* ABI crap starts here */
+                *(.MIPS.abiflags)
                 *(.MIPS.options)
                 *(.options)
                 *(.pdr)