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authorRalf Baechle <ralf@linux-mips.org>2015-11-12 11:36:03 +0100
committerRalf Baechle <ralf@linux-mips.org>2015-11-12 11:36:03 +0100
commitda34232641a91ca785a787c23c158488e459b938 (patch)
tree8be0342fa443f92a7e0f36a5c11cf094af2747d4 /arch
parentbf463f2f7510771db180908507005379850dade0 (diff)
parent3bfb7224566593219dbd67474dacb23ef7c080e3 (diff)
downloadlinux-da34232641a91ca785a787c23c158488e459b938.tar.bz2
Merge branch '4.3-fixes' into mips-for-linux-next
Diffstat (limited to 'arch')
-rw-r--r--arch/mips/include/asm/atomic.h2
-rw-r--r--arch/mips/include/asm/cdmm.h11
-rw-r--r--arch/mips/kernel/idle.c5
-rw-r--r--arch/mips/kernel/traps.c2
-rw-r--r--arch/mips/kernel/vmlinux.lds.S10
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)