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Differential D14212 Diff 38958 sys/x86/x86/busdma_bounce.c

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sys/x86/x86/busdma_bounce.c

Show First 20 Lines • Show All 1,089 Lines • ▼ Show 20 Linesalloc_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"); "Total bounce requests");
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_UAUTO(busdma_sysctl_tree(bz), SYSCTL_ADD_UAUTO(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");
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,
"domain", CTLFLAG_RD, &bz->domain, 0, "domain", CTLFLAG_RD, &bz->domain, 0,
"memory domain"); "Memory domain");
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;
▲ Show 20 Lines • Show All 171 Lines • Show Last 20 Lines