43#include <sys/callout.h>
47#include <sys/memdesc.h>
53#include <vm/vm_page.h>
58#include <cam/cam_ccb.h>
60#include <opencrypto/cryptodev.h>
62#include <machine/bus.h>
73 dmtx = (
struct mtx *)arg;
82 panic(
"Unknown operation 0x%x for busdma_lock_mutex!", op);
97 panic(
"driver error: _bus_dma_dflt_lock called");
108 bus_dma_segment_t *list,
int sglist_cnt,
struct pmap *pmap,
int *nsegs,
109 int flags,
size_t offset,
size_t length)
114 for (; sglist_cnt > 0 && length != 0; sglist_cnt--, list++) {
118 KASSERT((offset < list->ds_len),
119 (
"Invalid mid-segment offset"));
120 addr = (
char *)(uintptr_t)list->ds_addr + offset;
121 ds_len = list->ds_len - offset;
126 KASSERT((ds_len != 0), (
"Segment length is zero"));
127 error = _bus_dmamap_load_buffer(dmat, map,
addr, ds_len, pmap,
140 bus_dma_segment_t *list,
int sglist_cnt,
int *nsegs,
int flags)
145 for (; sglist_cnt > 0; sglist_cnt--, list++) {
146 error = _bus_dmamap_load_phys(dmat, map,
147 (vm_paddr_t)list->ds_addr, list->ds_len,
flags, NULL,
160 struct mbuf *m, bus_dma_segment_t *segs,
int *nsegs,
int flags)
162 int error, i, off, len, pglen, pgoff, seglen, segoff;
170 off = mtod(m, vm_offset_t);
172 if (m->m_epg_hdrlen != 0) {
173 if (off >= m->m_epg_hdrlen) {
174 off -= m->m_epg_hdrlen;
176 seglen = m->m_epg_hdrlen - off;
178 seglen = min(seglen, len);
181 error = _bus_dmamap_load_buffer(dmat, map,
182 &m->m_epg_hdr[segoff], seglen, kernel_pmap,
186 pgoff = m->m_epg_1st_off;
187 for (i = 0; i < m->m_epg_npgs && error == 0 && len > 0; i++) {
188 pglen = m_epg_pagelen(m, i, pgoff);
194 seglen = pglen - off;
195 segoff = pgoff + off;
197 seglen = min(seglen, len);
199 error = _bus_dmamap_load_phys(dmat, map,
200 m->m_epg_pa[i] + segoff, seglen,
flags, segs, nsegs);
203 if (len != 0 && error == 0) {
204 KASSERT((off + len) <= m->m_epg_trllen,
205 (
"off + len > trail (%d + %d > %d)", off, len,
207 error = _bus_dmamap_load_buffer(dmat, map,
208 &m->m_epg_trail[off], len, kernel_pmap,
flags, segs,
219 struct mbuf *m, bus_dma_segment_t *segs,
int *nsegs,
int flags)
224 if ((m->m_flags & M_EXTPG) != 0)
228 error = _bus_dmamap_load_buffer(dmat, map, m->m_data, m->m_len,
229 kernel_pmap,
flags | BUS_DMA_LOAD_MBUF, segs, nsegs);
230 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
231 __func__, dmat,
flags, error, *nsegs);
240 struct mbuf *m0, bus_dma_segment_t *segs,
int *nsegs,
int flags)
246 for (m = m0; m != NULL && error == 0; m = m->m_next) {
248 if ((m->m_flags & M_EXTPG) != 0)
250 map, m, segs, nsegs,
flags);
252 error = _bus_dmamap_load_buffer(dmat, map,
253 m->m_data, m->m_len, kernel_pmap,
254 flags | BUS_DMA_LOAD_MBUF, segs, nsegs);
257 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
258 __func__, dmat,
flags, error, *nsegs);
267 int *nsegs,
int flags)
270 if ((bio->bio_flags & BIO_VLIST) != 0) {
271 bus_dma_segment_t *segs = (bus_dma_segment_t *)bio->bio_data;
273 kernel_pmap, nsegs,
flags, bio->bio_ma_offset,
277 if ((bio->bio_flags & BIO_UNMAPPED) != 0)
278 return (_bus_dmamap_load_ma(dmat, map, bio->bio_ma,
279 bio->bio_bcount, bio->bio_ma_offset,
flags, NULL, nsegs));
281 return (_bus_dmamap_load_buffer(dmat, map, bio->bio_data,
282 bio->bio_bcount, kernel_pmap,
flags, NULL, nsegs));
287 struct vm_page **ma, bus_size_t tlen,
int ma_offs,
int flags,
288 bus_dma_segment_t *segs,
int *segp)
295 for (i = 0; tlen > 0; i++, tlen -= len) {
296 len = min(PAGE_SIZE - ma_offs, tlen);
297 paddr = VM_PAGE_TO_PHYS(ma[i]) + ma_offs;
298 error = _bus_dmamap_load_phys(dmat, map, paddr, len,
312 int *nsegs,
int flags)
314 struct ccb_hdr *ccb_h;
322 switch (ccb_h->func_code) {
324 struct ccb_scsiio *csio;
327 data_ptr = csio->data_ptr;
328 dxfer_len = csio->dxfer_len;
329 sglist_cnt = csio->sglist_cnt;
332 case XPT_CONT_TARGET_IO: {
333 struct ccb_scsiio *ctio;
336 data_ptr = ctio->data_ptr;
337 dxfer_len = ctio->dxfer_len;
338 sglist_cnt = ctio->sglist_cnt;
342 struct ccb_ataio *ataio;
345 data_ptr = ataio->data_ptr;
346 dxfer_len = ataio->dxfer_len;
351 case XPT_NVME_ADMIN: {
352 struct ccb_nvmeio *nvmeio;
354 nvmeio = &ccb->nvmeio;
355 data_ptr = nvmeio->data_ptr;
356 dxfer_len = nvmeio->dxfer_len;
357 sglist_cnt = nvmeio->sglist_cnt;
361 panic(
"_bus_dmamap_load_ccb: Unsupported func code %d",
365 switch ((ccb_h->flags & CAM_DATA_MASK)) {
367 error = _bus_dmamap_load_buffer(dmat, map, data_ptr, dxfer_len,
368 kernel_pmap,
flags, NULL, nsegs);
371 error = _bus_dmamap_load_phys(dmat, map,
372 (vm_paddr_t)(uintptr_t)data_ptr, dxfer_len,
flags, NULL,
377 (bus_dma_segment_t *)data_ptr, sglist_cnt, kernel_pmap,
378 nsegs,
flags, 0, dxfer_len);
380 case CAM_DATA_SG_PADDR:
382 (bus_dma_segment_t *)data_ptr, sglist_cnt, nsegs,
flags);
389 panic(
"_bus_dmamap_load_ccb: flags 0x%X unimplemented",
400 int *nsegs,
int flags)
409 if (uio->uio_segflg == UIO_USERSPACE) {
410 KASSERT(uio->uio_td != NULL,
411 (
"bus_dmamap_load_uio: USERSPACE but no proc"));
412 pmap = vmspace_pmap(uio->uio_td->td_proc->p_vmspace);
415 resid = uio->uio_resid;
419 for (i = 0; i < uio->uio_iovcnt && resid != 0 && !error; i++) {
425 addr = (caddr_t) iov[i].iov_base;
426 minlen = resid < iov[i].iov_len ? resid : iov[i].iov_len;
428 error = _bus_dmamap_load_buffer(dmat, map,
addr,
429 minlen, pmap,
flags, NULL, nsegs);
442 bus_size_t buflen, bus_dmamap_callback_t *
callback,
443 void *callback_arg,
int flags)
445 bus_dma_segment_t *segs;
451 mem = memdesc_vaddr(
buf, buflen);
452 _bus_dmamap_load_kmsan(dmat, map, &mem);
455 if ((
flags & BUS_DMA_NOWAIT) == 0) {
456 mem = memdesc_vaddr(
buf, buflen);
457 _bus_dmamap_waitok(dmat, map, &mem,
callback, callback_arg);
461 error = _bus_dmamap_load_buffer(dmat, map,
buf, buflen, kernel_pmap,
462 flags, NULL, &nsegs);
465 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
466 __func__, dmat,
flags, error, nsegs);
468 if (error == EINPROGRESS)
471 segs = _bus_dmamap_complete(dmat, map, NULL, nsegs, error);
473 (*callback)(callback_arg, segs, 0, error);
475 (*
callback)(callback_arg, segs, nsegs, 0);
489 bus_dmamap_callback2_t *
callback,
void *callback_arg,
int flags)
491 bus_dma_segment_t *segs;
497 struct memdesc mem = memdesc_mbuf(m0);
498 _bus_dmamap_load_kmsan(dmat, map, &mem);
501 flags |= BUS_DMA_NOWAIT;
506 segs = _bus_dmamap_complete(dmat, map, NULL, nsegs, error);
508 (*callback)(callback_arg, segs, 0, 0, error);
510 (*
callback)(callback_arg, segs, nsegs, m0->m_pkthdr.len, error);
512 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
513 __func__, dmat,
flags, error, nsegs);
519 bus_dma_segment_t *segs,
int *nsegs,
int flags)
524 struct memdesc mem = memdesc_mbuf(m0);
525 _bus_dmamap_load_kmsan(dmat, map, &mem);
528 flags |= BUS_DMA_NOWAIT;
532 _bus_dmamap_complete(dmat, map, segs, *nsegs, error);
538 bus_dmamap_callback2_t *
callback,
void *callback_arg,
int flags)
540 bus_dma_segment_t *segs;
544 struct memdesc mem = memdesc_uio(uio);
545 _bus_dmamap_load_kmsan(dmat, map, &mem);
548 flags |= BUS_DMA_NOWAIT;
553 segs = _bus_dmamap_complete(dmat, map, NULL, nsegs, error);
555 (*callback)(callback_arg, segs, 0, 0, error);
557 (*
callback)(callback_arg, segs, nsegs, uio->uio_resid, error);
559 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
560 __func__, dmat,
flags, error, nsegs);
566 bus_dmamap_callback_t *
callback,
void *callback_arg,
569 bus_dma_segment_t *segs;
570 struct ccb_hdr *ccb_h;
576 mem = memdesc_ccb(ccb);
577 _bus_dmamap_load_kmsan(dmat, map, &mem);
581 if ((ccb_h->flags & CAM_DIR_MASK) == CAM_DIR_NONE) {
585 if ((
flags & BUS_DMA_NOWAIT) == 0) {
586 mem = memdesc_ccb(ccb);
587 _bus_dmamap_waitok(dmat, map, &mem,
callback, callback_arg);
593 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
594 __func__, dmat,
flags, error, nsegs);
596 if (error == EINPROGRESS)
599 segs = _bus_dmamap_complete(dmat, map, NULL, nsegs, error);
601 (*callback)(callback_arg, segs, 0, error);
603 (*
callback)(callback_arg, segs, nsegs, error);
616 bus_dmamap_callback_t *
callback,
void *callback_arg,
619 bus_dma_segment_t *segs;
625 mem = memdesc_bio(bio);
626 _bus_dmamap_load_kmsan(dmat, map, &mem);
629 if ((
flags & BUS_DMA_NOWAIT) == 0) {
630 mem = memdesc_bio(bio);
631 _bus_dmamap_waitok(dmat, map, &mem,
callback, callback_arg);
637 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
638 __func__, dmat,
flags, error, nsegs);
640 if (error == EINPROGRESS)
643 segs = _bus_dmamap_complete(dmat, map, NULL, nsegs, error);
645 (*callback)(callback_arg, segs, 0, error);
647 (*
callback)(callback_arg, segs, nsegs, error);
660 struct memdesc *mem, bus_dmamap_callback_t *
callback,
661 void *callback_arg,
int flags)
663 bus_dma_segment_t *segs;
668 _bus_dmamap_load_kmsan(dmat, map, mem);
671 if ((
flags & BUS_DMA_NOWAIT) == 0)
672 _bus_dmamap_waitok(dmat, map, mem,
callback, callback_arg);
676 switch (mem->md_type) {
678 error = _bus_dmamap_load_buffer(dmat, map, mem->u.md_vaddr,
679 mem->md_opaque, kernel_pmap,
flags, NULL, &nsegs);
682 error = _bus_dmamap_load_phys(dmat, map, mem->u.md_paddr,
683 mem->md_opaque,
flags, NULL, &nsegs);
687 mem->md_opaque, kernel_pmap, &nsegs,
flags, 0, SIZE_T_MAX);
691 mem->md_opaque, &nsegs,
flags);
703 NULL, &nsegs,
flags);
712 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
713 __func__, dmat,
flags, error, nsegs);
715 if (error == EINPROGRESS)
718 segs = _bus_dmamap_complete(dmat, map, NULL, nsegs, error);
720 (*callback)(callback_arg, segs, 0, error);
722 (*
callback)(callback_arg, segs, nsegs, 0);
736 struct crypto_buffer *cb, bus_dmamap_callback_t *
callback,
737 void *callback_arg,
int flags)
739 bus_dma_segment_t *segs;
743 flags |= BUS_DMA_NOWAIT;
746 switch (cb->cb_type) {
747 case CRYPTO_BUF_CONTIG:
748 error = _bus_dmamap_load_buffer(dmat, map, cb->cb_buf,
749 cb->cb_buf_len, kernel_pmap,
flags, NULL, &nsegs);
751 case CRYPTO_BUF_MBUF:
753 NULL, &nsegs,
flags);
755 case CRYPTO_BUF_SINGLE_MBUF:
757 NULL, &nsegs,
flags);
763 case CRYPTO_BUF_VMPAGE:
764 error = _bus_dmamap_load_ma(dmat, map, cb->cb_vm_page,
765 cb->cb_vm_page_len, cb->cb_vm_page_offset,
flags, NULL,
773 CTR5(KTR_BUSDMA,
"%s: tag %p tag flags 0x%x error %d nsegs %d",
774 __func__, dmat,
flags, error, nsegs);
776 if (error == EINPROGRESS)
779 segs = _bus_dmamap_complete(dmat, map, NULL, nsegs, error);
781 (*callback)(callback_arg, segs, 0, error);
783 (*
callback)(callback_arg, segs, nsegs, 0);
797 bus_dmamap_callback_t *
callback,
void *callback_arg,
int flags)
800 callback_arg,
flags));
813 t->lowaddr = t->highaddr = BUS_SPACE_MAXADDR;
814 t->maxsize = t->maxsegsize = BUS_SPACE_MAXSIZE;
815 t->nsegments = BUS_SPACE_UNRESTRICTED;
817 t->lockfuncarg = NULL;
825 if (t == NULL || dmat == NULL)
828 return (bus_dma_tag_create(t->parent, t->alignment, t->boundary,
829 t->lowaddr, t->highaddr, NULL, NULL, t->maxsize,
830 t->nsegments, t->maxsegsize, t->flags, t->lockfunc, t->lockfuncarg,
837 bus_dma_param_t *pkv;
842 case BD_PARAM_PARENT:
843 t->parent = pkv->ptr;
845 case BD_PARAM_ALIGNMENT:
846 t->alignment = pkv->num;
848 case BD_PARAM_BOUNDARY:
849 t->boundary = pkv->num;
851 case BD_PARAM_LOWADDR:
852 t->lowaddr = pkv->pa;
854 case BD_PARAM_HIGHADDR:
855 t->highaddr = pkv->pa;
857 case BD_PARAM_MAXSIZE:
858 t->maxsize = pkv->num;
860 case BD_PARAM_NSEGMENTS:
861 t->nsegments = pkv->num;
863 case BD_PARAM_MAXSEGSIZE:
864 t->maxsegsize = pkv->num;
869 case BD_PARAM_LOCKFUNC:
870 t->lockfunc = pkv->ptr;
872 case BD_PARAM_LOCKFUNCARG:
873 t->lockfuncarg = pkv->ptr;
878 case BD_PARAM_INVALID:
880 KASSERT(0, (
"Invalid key %d\n", pkv->key));
890 vm_paddr_t
start, vm_size_t length,
int flags);
900 vm_paddr_t
start, vm_size_t length,
int flags)
void panic(const char *fmt,...)
linker_function_name_callback_t callback
void busdma_lock_mutex(void *arg, bus_dma_lock_op_t op)
static int _bus_dmamap_load_plist(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dma_segment_t *list, int sglist_cnt, int *nsegs, int flags)
static int _bus_dmamap_load_ccb(bus_dma_tag_t dmat, bus_dmamap_t map, union ccb *ccb, int *nsegs, int flags)
static int _bus_dmamap_load_single_mbuf(bus_dma_tag_t dmat, bus_dmamap_t map, struct mbuf *m, bus_dma_segment_t *segs, int *nsegs, int flags)
static int _bus_dmamap_load_uio(bus_dma_tag_t dmat, bus_dmamap_t map, struct uio *uio, int *nsegs, int flags)
void bus_dma_template_fill(bus_dma_template_t *t, bus_dma_param_t *kv, u_int count)
int bus_dmamap_load_crp(bus_dma_tag_t dmat, bus_dmamap_t map, struct cryptop *crp, bus_dmamap_callback_t *callback, void *callback_arg, int flags)
int bus_dmamap_load_mbuf_sg(bus_dma_tag_t dmat, bus_dmamap_t map, struct mbuf *m0, bus_dma_segment_t *segs, int *nsegs, int flags)
static int _bus_dmamap_load_mbuf_sg(bus_dma_tag_t dmat, bus_dmamap_t map, struct mbuf *m0, bus_dma_segment_t *segs, int *nsegs, int flags)
int bus_dmamap_load_ccb(bus_dma_tag_t dmat, bus_dmamap_t map, union ccb *ccb, bus_dmamap_callback_t *callback, void *callback_arg, int flags)
void bus_dma_template_init(bus_dma_template_t *t, bus_dma_tag_t parent)
int bus_dmamap_load_ma_triv(bus_dma_tag_t dmat, bus_dmamap_t map, struct vm_page **ma, bus_size_t tlen, int ma_offs, int flags, bus_dma_segment_t *segs, int *segp)
int bus_dmamap_load_bio(bus_dma_tag_t dmat, bus_dmamap_t map, struct bio *bio, bus_dmamap_callback_t *callback, void *callback_arg, int flags)
int bus_dma_template_tag(bus_dma_template_t *t, bus_dma_tag_t *dmat)
int bus_dmamap_load_mbuf(bus_dma_tag_t dmat, bus_dmamap_t map, struct mbuf *m0, bus_dmamap_callback2_t *callback, void *callback_arg, int flags)
int bus_dma_iommu_load_ident(bus_dma_tag_t dmat, bus_dmamap_t map, vm_paddr_t start, vm_size_t length, int flags)
int bus_dmamap_load(bus_dma_tag_t dmat, bus_dmamap_t map, void *buf, bus_size_t buflen, bus_dmamap_callback_t *callback, void *callback_arg, int flags)
static int _bus_dmamap_load_bio(bus_dma_tag_t dmat, bus_dmamap_t map, struct bio *bio, int *nsegs, int flags)
static int _bus_dmamap_load_mbuf_epg(bus_dma_tag_t dmat, bus_dmamap_t map, struct mbuf *m, bus_dma_segment_t *segs, int *nsegs, int flags)
int bus_dmamap_load_uio(bus_dma_tag_t dmat, bus_dmamap_t map, struct uio *uio, bus_dmamap_callback2_t *callback, void *callback_arg, int flags)
void _busdma_dflt_lock(void *arg, bus_dma_lock_op_t op)
int bus_dmamap_load_mem(bus_dma_tag_t dmat, bus_dmamap_t map, struct memdesc *mem, bus_dmamap_callback_t *callback, void *callback_arg, int flags)
bool bus_dma_iommu_set_buswide(device_t dev)
int bus_dmamap_load_crp_buffer(bus_dma_tag_t dmat, bus_dmamap_t map, struct crypto_buffer *cb, bus_dmamap_callback_t *callback, void *callback_arg, int flags)
static int _bus_dmamap_load_vlist(bus_dma_tag_t dmat, bus_dmamap_t map, bus_dma_segment_t *list, int sglist_cnt, struct pmap *pmap, int *nsegs, int flags, size_t offset, size_t length)