Differential D23718 Diff 68417 sys/arm64/arm64/busdma_bounce.c

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sys/arm64/arm64/busdma_bounce.c

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	struct sysctl_oid *sysctl_tree_top;			struct sysctl_oid *sysctl_tree_top;
	};			};

	static struct mtx bounce_lock;			static struct mtx bounce_lock;
	static int total_bpages;			static int total_bpages;
	static int busdma_zonecount;			static int busdma_zonecount;
	static STAILQ_HEAD(, bounce_zone) bounce_zone_list;			static STAILQ_HEAD(, bounce_zone) bounce_zone_list;

	static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD, 0, "Busdma parameters");			static SYSCTL_NODE(_hw, OID_AUTO, busdma, CTLFLAG_RD \| CTLFLAG_MPSAFE, 0,
				"Busdma parameters");
	SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0,			SYSCTL_INT(_hw_busdma, OID_AUTO, total_bpages, CTLFLAG_RD, &total_bpages, 0,
	"Total bounce pages");			"Total bounce pages");

	struct sync_list {			struct sync_list {
	vm_offset_t vaddr; /* kva of client data */			vm_offset_t vaddr; /* kva of client data */
	bus_addr_t paddr; /* physical address */			bus_addr_t paddr; /* physical address */
	vm_page_t pages; /* starting page of client data */			vm_page_t pages; /* starting page of client data */
	bus_size_t datacount; /* client data count */			bus_size_t datacount; /* client data count */
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	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 \| CTLFLAG_MPSAFE, 0, "");
	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,
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