svn commit: r274545 - head/sys/arm/arm

[Ian Lepore]

Author: ian
Date: Sat Nov 15 05:40:20 2014
New Revision: 274545
URL: https://svnweb.freebsd.org/changeset/base/274545

Log:
  Whitespace and comment tweaks, no functional changes.

Modified:
  head/sys/arm/arm/busdma_machdep-v6.c

Modified: head/sys/arm/arm/busdma_machdep-v6.c
==============================================================================
--- head/sys/arm/arm/busdma_machdep-v6.c	Sat Nov 15 05:35:24 2014	(r274544)
+++ head/sys/arm/arm/busdma_machdep-v6.c	Sat Nov 15 05:40:20 2014	(r274545)
@@ -1,5 +1,5 @@
 /*-
- * Copyright (c) 2012 Ian Lepore
+ * Copyright (c) 2012-2014 Ian Lepore
  * Copyright (c) 2010 Mark Tinguely
  * Copyright (c) 2004 Olivier Houchard
  * Copyright (c) 2002 Peter Grehan
@@ -346,6 +346,7 @@ static __inline int
 might_bounce(bus_dma_tag_t dmat, bus_dmamap_t map, bus_addr_t addr, 
     bus_size_t size)
 {
+
 	return ((dmat->flags & BUS_DMA_EXCL_BOUNCE) ||
 	    alignment_bounce(dmat, addr) ||
 	    cacheline_bounce(map, addr, size));
@@ -444,6 +445,7 @@ busdma_lock_mutex(void *arg, bus_dma_loc
 static void
 dflt_lock(void *arg, bus_dma_lock_op_t op)
 {
+
 	panic("driver error: busdma dflt_lock called");
 }
 
@@ -625,7 +627,7 @@ out:
 
 static int allocate_bz_and_pages(bus_dma_tag_t dmat, bus_dmamap_t mapp)
 {
-        struct bounce_zone *bz;
+	struct bounce_zone *bz;
 	int maxpages;
 	int error;
 		
@@ -1252,13 +1254,13 @@ _bus_dmamap_unload(bus_dma_tag_t dmat, b
 }
 
 #ifdef notyetbounceuser
-	/* If busdma uses user pages, then the interrupt handler could
-	 * be use the kernel vm mapping. Both bounce pages and sync list
-	 * do not cross page boundaries.
-	 * Below is a rough sequence that a person would do to fix the
-	 * user page reference in the kernel vmspace. This would be
-	 * done in the dma post routine.
-	 */
+/* If busdma uses user pages, then the interrupt handler could
+ * be use the kernel vm mapping. Both bounce pages and sync list
+ * do not cross page boundaries.
+ * Below is a rough sequence that a person would do to fix the
+ * user page reference in the kernel vmspace. This would be
+ * done in the dma post routine.
+ */
 void
 _bus_dmamap_fix_user(vm_offset_t buf, bus_size_t len,
 			pmap_t pmap, int op)
@@ -1267,10 +1269,10 @@ _bus_dmamap_fix_user(vm_offset_t buf, bu
 	bus_addr_t curaddr;
 	vm_offset_t va;
 
-		/* each synclist entry is contained within a single page.
-		 *
-		 * this would be needed if BUS_DMASYNC_POSTxxxx was implemented
-		*/
+	/* 
+	 * each synclist entry is contained within a single page.
+	 * this would be needed if BUS_DMASYNC_POSTxxxx was implemented
+	 */
 	curaddr = pmap_extract(pmap, buf);
 	va = pmap_dma_map(curaddr);
 	switch (op) {
@@ -1411,10 +1413,10 @@ _bus_dmamap_sync(bus_dma_tag_t dmat, bus
 		switch (op) {
 		case BUS_DMASYNC_PREWRITE:
 			while (sl != end) {
-			    cpu_dcache_wb_range(sl->vaddr, sl->datacount);
-			    l2cache_wb_range(sl->vaddr, sl->busaddr,
-				sl->datacount);
-			    sl++;
+				cpu_dcache_wb_range(sl->vaddr, sl->datacount);
+				l2cache_wb_range(sl->vaddr, sl->busaddr,
+				    sl->datacount);
+				sl++;
 			}
 			break;
 
@@ -1462,12 +1464,14 @@ SYSINIT(bpages, SI_SUB_LOCK, SI_ORDER_AN
 static struct sysctl_ctx_list *
 busdma_sysctl_tree(struct bounce_zone *bz)
 {
+
 	return (&bz->sysctl_tree);
 }
 
 static struct sysctl_oid *
 busdma_sysctl_tree_top(struct bounce_zone *bz)
 {
+
 	return (bz->sysctl_tree_top);
 }