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authorChris Metcalf <cmetcalf@tilera.com>2011-02-28 15:28:00 -0500
committerChris Metcalf <cmetcalf@tilera.com>2011-03-01 16:20:54 -0500
commit6c4d11268819d9c920c7befd8e8e9aad456bb067 (patch)
tree85aeb083d5973696bf704becf261ad91bd484613 /arch/tile/lib
parent0b989cac90144565b8780ddde36e6a927f8ca7ba (diff)
arch/tile: use extended assembly to inline __mb_incoherent()
This avoids having to maintain an additional separate assembly file, and of course the inline is slightly more efficient as well. Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Diffstat (limited to 'arch/tile/lib')
-rw-r--r--arch/tile/lib/Makefile5
-rw-r--r--arch/tile/lib/exports.c3
-rw-r--r--arch/tile/lib/mb_incoherent.S34
3 files changed, 2 insertions, 40 deletions
diff --git a/arch/tile/lib/Makefile b/arch/tile/lib/Makefile
index 93122d5b155..0c26086ecbe 100644
--- a/arch/tile/lib/Makefile
+++ b/arch/tile/lib/Makefile
@@ -2,9 +2,8 @@
# Makefile for TILE-specific library files..
#
-lib-y = cacheflush.o checksum.o cpumask.o delay.o \
- mb_incoherent.o uaccess.o memmove.o \
- memcpy_$(BITS).o memchr_$(BITS).o memset_$(BITS).o \
+lib-y = cacheflush.o checksum.o cpumask.o delay.o uaccess.o \
+ memmove.o memcpy_$(BITS).o memchr_$(BITS).o memset_$(BITS).o \
strchr_$(BITS).o strlen_$(BITS).o
ifeq ($(CONFIG_TILEGX),y)
diff --git a/arch/tile/lib/exports.c b/arch/tile/lib/exports.c
index 1509c559765..ce5dbf56578 100644
--- a/arch/tile/lib/exports.c
+++ b/arch/tile/lib/exports.c
@@ -45,9 +45,6 @@ EXPORT_SYMBOL(__copy_from_user_zeroing);
EXPORT_SYMBOL(__copy_in_user_inatomic);
#endif
-/* arch/tile/lib/mb_incoherent.S */
-EXPORT_SYMBOL(__mb_incoherent);
-
/* hypervisor glue */
#include <hv/hypervisor.h>
EXPORT_SYMBOL(hv_dev_open);
diff --git a/arch/tile/lib/mb_incoherent.S b/arch/tile/lib/mb_incoherent.S
deleted file mode 100644
index 989ad7b68d5..00000000000
--- a/arch/tile/lib/mb_incoherent.S
+++ /dev/null
@@ -1,34 +0,0 @@
-/*
- * Copyright 2010 Tilera Corporation. All Rights Reserved.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation, version 2.
- *
- * This program is distributed in the hope that it will be useful, but
- * WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, GOOD TITLE or
- * NON INFRINGEMENT. See the GNU General Public License for
- * more details.
- *
- * Assembly code for invoking the HV's fence_incoherent syscall.
- */
-
-#include <linux/linkage.h>
-#include <hv/syscall_public.h>
-#include <arch/abi.h>
-#include <arch/chip.h>
-
-#if !CHIP_HAS_MF_WAITS_FOR_VICTIMS()
-
-/*
- * Invoke the hypervisor's fence_incoherent syscall, which guarantees
- * that all victims for cachelines homed on this tile have reached memory.
- */
-STD_ENTRY(__mb_incoherent)
- moveli TREG_SYSCALL_NR_NAME, HV_SYS_fence_incoherent
- swint2
- jrp lr
- STD_ENDPROC(__mb_incoherent)
-
-#endif