arch/tile: fix some comments and whitespace
This is a grab bag of changes with no actual change to generated code.
This includes whitespace and comment typos, plus a couple of stale
comments being removed.
Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
diff --git a/arch/tile/Kconfig b/arch/tile/Kconfig
index 9e4eb51..92f7ea0 100644
--- a/arch/tile/Kconfig
+++ b/arch/tile/Kconfig
@@ -1,5 +1,5 @@
# For a description of the syntax of this configuration file,
-# see Documentation/kbuild/config-language.txt.
+# see Documentation/kbuild/kconfig-language.txt.
config TILE
def_bool y
@@ -15,14 +15,14 @@
# FIXME: investigate whether we need/want these options.
# select HAVE_IOREMAP_PROT
-# select HAVE_OPTPROBES
-# select HAVE_REGS_AND_STACK_ACCESS_API
-# select HAVE_HW_BREAKPOINT
-# select PERF_EVENTS
-# select HAVE_USER_RETURN_NOTIFIER
-# config NO_BOOTMEM
-# config ARCH_SUPPORTS_DEBUG_PAGEALLOC
-# config HUGETLB_PAGE_SIZE_VARIABLE
+# select HAVE_OPTPROBES
+# select HAVE_REGS_AND_STACK_ACCESS_API
+# select HAVE_HW_BREAKPOINT
+# select PERF_EVENTS
+# select HAVE_USER_RETURN_NOTIFIER
+# config NO_BOOTMEM
+# config ARCH_SUPPORTS_DEBUG_PAGEALLOC
+# config HUGETLB_PAGE_SIZE_VARIABLE
config MMU
def_bool y
@@ -40,7 +40,7 @@
def_bool y
config NEED_PER_CPU_PAGE_FIRST_CHUNK
- def_bool y
+ def_bool y
config SYS_SUPPORTS_HUGETLBFS
def_bool y
diff --git a/arch/tile/include/asm/bitops_32.h b/arch/tile/include/asm/bitops_32.h
index 7a93c001..2638be5 100644
--- a/arch/tile/include/asm/bitops_32.h
+++ b/arch/tile/include/asm/bitops_32.h
@@ -122,7 +122,7 @@
return (_atomic_xor(addr, mask) & mask) != 0;
}
-/* See discussion at smp_mb__before_atomic_dec() in <asm/atomic.h>. */
+/* See discussion at smp_mb__before_atomic_dec() in <asm/atomic_32.h>. */
#define smp_mb__before_clear_bit() smp_mb()
#define smp_mb__after_clear_bit() do {} while (0)
diff --git a/arch/tile/include/asm/processor.h b/arch/tile/include/asm/processor.h
index a9e7c87..e688947 100644
--- a/arch/tile/include/asm/processor.h
+++ b/arch/tile/include/asm/processor.h
@@ -269,7 +269,6 @@
/* Data on which physical memory controller corresponds to which NUMA node. */
extern int node_controller[];
-
/* Do we dump information to the console when a user application crashes? */
extern int show_crashinfo;
diff --git a/arch/tile/kernel/intvec_32.S b/arch/tile/kernel/intvec_32.S
index abf92f5..eabf1ef 100644
--- a/arch/tile/kernel/intvec_32.S
+++ b/arch/tile/kernel/intvec_32.S
@@ -1584,7 +1584,7 @@
* about aliasing among multiple mappings of the same physical page,
* and we ignore the low 3 bits so we have one lock that covers
* both a cmpxchg64() and a cmpxchg() on either its low or high word.
- * NOTE: this code must match __atomic_hashed_lock() in lib/atomic.c.
+ * NOTE: this must match __atomic_hashed_lock() in lib/atomic_32.c.
*/
#if ATOMIC_LOCKS_FOUND_VIA_TABLE()
@@ -1718,7 +1718,7 @@
/*
* Perform the actual cmpxchg or atomic_update.
- * Note that __futex_mark_unlocked() in uClibc relies on
+ * Note that the system <arch/atomic.h> header relies on
* atomic_update() to always perform an "mf", so don't make
* it optional or conditional without modifying that code.
*/
diff --git a/arch/tile/lib/atomic_32.c b/arch/tile/lib/atomic_32.c
index 20c3162..f02040d 100644
--- a/arch/tile/lib/atomic_32.c
+++ b/arch/tile/lib/atomic_32.c
@@ -52,7 +52,7 @@
static inline int *__atomic_hashed_lock(volatile void *v)
{
- /* NOTE: this code must match "sys_cmpxchg" in kernel/intvec.S */
+ /* NOTE: this code must match "sys_cmpxchg" in kernel/intvec_32.S */
#if ATOMIC_LOCKS_FOUND_VIA_TABLE()
unsigned long i =
(unsigned long) v & ((PAGE_SIZE-1) & -sizeof(long long));
diff --git a/arch/tile/lib/atomic_asm_32.S b/arch/tile/lib/atomic_asm_32.S
index 5a5514b..82f64cc 100644
--- a/arch/tile/lib/atomic_asm_32.S
+++ b/arch/tile/lib/atomic_asm_32.S
@@ -14,7 +14,7 @@
* Support routines for atomic operations. Each function takes:
*
* r0: address to manipulate
- * r1: pointer to atomic lock guarding this operation (for FUTEX_LOCK_REG)
+ * r1: pointer to atomic lock guarding this operation (for ATOMIC_LOCK_REG)
* r2: new value to write, or for cmpxchg/add_unless, value to compare against
* r3: (cmpxchg/xchg_add_unless) new value to write or add;
* (atomic64 ops) high word of value to write
diff --git a/arch/tile/mm/fault.c b/arch/tile/mm/fault.c
index dcebfc8..758f597 100644
--- a/arch/tile/mm/fault.c
+++ b/arch/tile/mm/fault.c
@@ -655,14 +655,6 @@
}
/*
- * NOTE: the one other type of access that might bring us here
- * are the memory ops in __tns_atomic_acquire/__tns_atomic_release,
- * but we don't have to check specially for them since we can
- * always safely return to the address of the fault and retry,
- * since no separate atomic locks are involved.
- */
-
- /*
* Now that we have released the atomic lock (if necessary),
* it's safe to spin if the PTE that caused the fault was migrating.
*/
