ARM: add size argument to __cpuc_flush_dcache_page

... and rename the function since it no longer operates on just
pages.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/arch/arm/mm/proc-xscale.S b/arch/arm/mm/proc-xscale.S
index f056c28..93df472 100644
--- a/arch/arm/mm/proc-xscale.S
+++ b/arch/arm/mm/proc-xscale.S
@@ -284,15 +284,16 @@
 	mov	pc, lr
 
 /*
- *	flush_kern_dcache_page(void *page)
+ *	flush_kern_dcache_area(void *addr, size_t size)
  *
  *	Ensure no D cache aliasing occurs, either with itself or
  *	the I cache
  *
- *	- addr	- page aligned address
+ *	- addr	- kernel address
+ *	- size	- region size
  */
-ENTRY(xscale_flush_kern_dcache_page)
-	add	r1, r0, #PAGE_SZ
+ENTRY(xscale_flush_kern_dcache_area)
+	add	r1, r0, r1
 1:	mcr	p15, 0, r0, c7, c10, 1		@ clean D entry
 	mcr	p15, 0, r0, c7, c6, 1		@ invalidate D entry
 	add	r0, r0, #CACHELINESIZE
@@ -368,7 +369,7 @@
 	.long	xscale_flush_user_cache_range
 	.long	xscale_coherent_kern_range
 	.long	xscale_coherent_user_range
-	.long	xscale_flush_kern_dcache_page
+	.long	xscale_flush_kern_dcache_area
 	.long	xscale_dma_inv_range
 	.long	xscale_dma_clean_range
 	.long	xscale_dma_flush_range
@@ -392,7 +393,7 @@
 	.long	xscale_flush_user_cache_range
 	.long	xscale_coherent_kern_range
 	.long	xscale_coherent_user_range
-	.long	xscale_flush_kern_dcache_page
+	.long	xscale_flush_kern_dcache_area
 	.long	xscale_dma_flush_range
 	.long	xscale_dma_clean_range
 	.long	xscale_dma_flush_range