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Whitespace and comment tweaks, no functional changes.

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This commit is contained in:
Ian Lepore 2014-11-15 05:40:20 +00:00
parent 45ba9627e4
commit e7a8895c57
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=274545
1 changed files with 21 additions and 17 deletions
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38
sys/arm/arm/busdma_machdep-v6.c
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@ -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_lock_op_t op)
static void
dflt_lock(void *arg, bus_dma_lock_op_t op)
{
panic("driver error: busdma dflt_lock called");
}
@ -625,7 +627,7 @@ bus_dma_tag_destroy(bus_dma_tag_t dmat)
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, bus_dmamap_t map)
}
#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, bus_size_t len,
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_dmamap_t map, bus_dmasync_op_t op)
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_ANY, init_bounce_pages, NULL);
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);
}