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authorJiri Kosina <jkosina@suse.cz>2013-03-09 10:58:13 +0100
committerJiri Kosina <jkosina@suse.cz>2013-03-09 11:01:06 +0100
commit83a44ac8bf4a8e6cbbf0c00ff281a482778f708a (patch)
tree325be1e4d52372db888396549908f25c5370caee /arch/openrisc/mm/init.c
parent4ba25d3f87fe3ed6634f61da2a6904e2dfd09192 (diff)
parentd381f45c890a3fb136afb0dc1cbe025e066cb981 (diff)
HID: Merge branch 'master' into for-3.10/hid-driver-transport-cleanups
Sync with Linus' tree. This is necessary to resolve build conflict caused by dcd9006b1b053c7b ("HID: logitech-dj: do not directly call hid_output_raw_report() during probe") which issues direct call to usbhid_submit_report(), but that is gone in this branch and hid_hw_request() has to be used instead. Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Diffstat (limited to 'arch/openrisc/mm/init.c')
-rw-r--r--arch/openrisc/mm/init.c17
1 files changed, 14 insertions, 3 deletions
diff --git a/arch/openrisc/mm/init.c b/arch/openrisc/mm/init.c
index 79dea9740a3c..e7fdc50c4bf0 100644
--- a/arch/openrisc/mm/init.c
+++ b/arch/openrisc/mm/init.c
@@ -167,15 +167,26 @@ void __init paging_init(void)
unsigned long *dtlb_vector = __va(0x900);
unsigned long *itlb_vector = __va(0xa00);
+ printk(KERN_INFO "itlb_miss_handler %p\n", &itlb_miss_handler);
+ *itlb_vector = ((unsigned long)&itlb_miss_handler -
+ (unsigned long)itlb_vector) >> 2;
+
+ /* Soft ordering constraint to ensure that dtlb_vector is
+ * the last thing updated
+ */
+ barrier();
+
printk(KERN_INFO "dtlb_miss_handler %p\n", &dtlb_miss_handler);
*dtlb_vector = ((unsigned long)&dtlb_miss_handler -
(unsigned long)dtlb_vector) >> 2;
- printk(KERN_INFO "itlb_miss_handler %p\n", &itlb_miss_handler);
- *itlb_vector = ((unsigned long)&itlb_miss_handler -
- (unsigned long)itlb_vector) >> 2;
}
+ /* Soft ordering constraint to ensure that cache invalidation and
+ * TLB flush really happen _after_ code has been modified.
+ */
+ barrier();
+
/* Invalidate instruction caches after code modification */
mtspr(SPR_ICBIR, 0x900);
mtspr(SPR_ICBIR, 0xa00);