Differential D14212 Diff 38958 sys/arm/arm/busdma_machdep-v4.c

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sys/arm/arm/busdma_machdep-v4.c

Show First 20 Lines • Show All 1,419 Lines • ▼ Show 20 Lines	alloc_bounce_zone(bus_dma_tag_t dmat)
busdma_zonecount++;		busdma_zonecount++;
snprintf(bz->lowaddrid, 18, "%#jx", (uintmax_t)bz->lowaddr);		snprintf(bz->lowaddrid, 18, "%#jx", (uintmax_t)bz->lowaddr);
STAILQ_INSERT_TAIL(&bounce_zone_list, bz, links);		STAILQ_INSERT_TAIL(&bounce_zone_list, bz, links);
dmat->bounce_zone = bz;		dmat->bounce_zone = bz;

sysctl_ctx_init(&bz->sysctl_tree);		sysctl_ctx_init(&bz->sysctl_tree);
bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree,		bz->sysctl_tree_top = SYSCTL_ADD_NODE(&bz->sysctl_tree,
SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid,		SYSCTL_STATIC_CHILDREN(_hw_busdma), OID_AUTO, bz->zoneid,
CTLFLAG_RD, 0, "");		CTLFLAG_RD, 0,
		"Busdma zone parameters");
if (bz->sysctl_tree_top == NULL) {		if (bz->sysctl_tree_top == NULL) {
sysctl_ctx_free(&bz->sysctl_tree);		sysctl_ctx_free(&bz->sysctl_tree);
return (0); /* XXX error code? */		return (0); /* XXX error code? */
}		}

SYSCTL_ADD_INT(busdma_sysctl_tree(bz),		SYSCTL_ADD_INT(busdma_sysctl_tree(bz),
SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO,		SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO,
"total_bpages", CTLFLAG_RD, &bz->total_bpages, 0,		"total_bpages", CTLFLAG_RD, &bz->total_bpages, 0,
Show All 15 Lines	SYSCTL_ADD_INT(busdma_sysctl_tree(bz),
"total_bounced", CTLFLAG_RD, &bz->total_bounced, 0,		"total_bounced", CTLFLAG_RD, &bz->total_bounced, 0,
"Total bounce requests (pages bounced)");		"Total bounce requests (pages bounced)");
SYSCTL_ADD_INT(busdma_sysctl_tree(bz),		SYSCTL_ADD_INT(busdma_sysctl_tree(bz),
SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO,		SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO,
"total_deferred", CTLFLAG_RD, &bz->total_deferred, 0,		"total_deferred", CTLFLAG_RD, &bz->total_deferred, 0,
"Total bounce requests that were deferred");		"Total bounce requests that were deferred");
SYSCTL_ADD_STRING(busdma_sysctl_tree(bz),		SYSCTL_ADD_STRING(busdma_sysctl_tree(bz),
SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO,		SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO,
"lowaddr", CTLFLAG_RD, bz->lowaddrid, 0, "");		"lowaddr", CTLFLAG_RD, bz->lowaddrid, 0,
		"Bounce zone lower address value");
SYSCTL_ADD_ULONG(busdma_sysctl_tree(bz),		SYSCTL_ADD_ULONG(busdma_sysctl_tree(bz),
SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO,		SYSCTL_CHILDREN(busdma_sysctl_tree_top(bz)), OID_AUTO,
"alignment", CTLFLAG_RD, &bz->alignment, "");		"alignment", CTLFLAG_RD, &bz->alignment,
		"Bounce zone alignment in bytes");

return (0);		return (0);
}		}

static int		static int
alloc_bounce_pages(bus_dma_tag_t dmat, u_int numpages)		alloc_bounce_pages(bus_dma_tag_t dmat, u_int numpages)
{		{
struct bounce_zone *bz;		struct bounce_zone *bz;
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