Lines Matching +full:generic +full:- +full:xhci
1 // SPDX-License-Identifier: GPL-2.0
3 * xHCI host controller driver
16 #include <linux/dma-mapping.h>
18 #include "xhci.h"
19 #include "xhci-trace.h"
20 #include "xhci-debugfs.h"
23 * Allocates a generic ring segment from the ring pool, sets the dma address,
29 static struct xhci_segment *xhci_segment_alloc(struct xhci_hcd *xhci, in xhci_segment_alloc() argument
38 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_segment_alloc()
44 seg->trbs = dma_pool_zalloc(xhci->segment_pool, flags, &dma); in xhci_segment_alloc()
45 if (!seg->trbs) { in xhci_segment_alloc()
51 seg->bounce_buf = kzalloc_node(max_packet, flags, in xhci_segment_alloc()
53 if (!seg->bounce_buf) { in xhci_segment_alloc()
54 dma_pool_free(xhci->segment_pool, seg->trbs, dma); in xhci_segment_alloc()
62 seg->trbs[i].link.control = cpu_to_le32(TRB_CYCLE); in xhci_segment_alloc()
64 seg->num = num; in xhci_segment_alloc()
65 seg->dma = dma; in xhci_segment_alloc()
66 seg->next = NULL; in xhci_segment_alloc()
71 static void xhci_segment_free(struct xhci_hcd *xhci, struct xhci_segment *seg) in xhci_segment_free() argument
73 if (seg->trbs) { in xhci_segment_free()
74 dma_pool_free(xhci->segment_pool, seg->trbs, seg->dma); in xhci_segment_free()
75 seg->trbs = NULL; in xhci_segment_free()
77 kfree(seg->bounce_buf); in xhci_segment_free()
81 static void xhci_free_segments_for_ring(struct xhci_hcd *xhci, in xhci_free_segments_for_ring() argument
86 seg = first->next; in xhci_free_segments_for_ring()
88 struct xhci_segment *next = seg->next; in xhci_free_segments_for_ring()
89 xhci_segment_free(xhci, seg); in xhci_free_segments_for_ring()
92 xhci_segment_free(xhci, first); in xhci_free_segments_for_ring()
110 prev->next = next; in xhci_link_segments()
112 prev->trbs[TRBS_PER_SEGMENT-1].link.segment_ptr = in xhci_link_segments()
113 cpu_to_le64(next->dma); in xhci_link_segments()
116 val = le32_to_cpu(prev->trbs[TRBS_PER_SEGMENT-1].link.control); in xhci_link_segments()
121 prev->trbs[TRBS_PER_SEGMENT-1].link.control = cpu_to_le32(val); in xhci_link_segments()
129 static void xhci_link_rings(struct xhci_hcd *xhci, struct xhci_ring *ring, in xhci_link_rings() argument
140 chain_links = !!(xhci_link_trb_quirk(xhci) || in xhci_link_rings()
141 (ring->type == TYPE_ISOC && in xhci_link_rings()
142 (xhci->quirks & XHCI_AMD_0x96_HOST))); in xhci_link_rings()
144 next = ring->enq_seg->next; in xhci_link_rings()
145 xhci_link_segments(ring->enq_seg, first, ring->type, chain_links); in xhci_link_rings()
146 xhci_link_segments(last, next, ring->type, chain_links); in xhci_link_rings()
147 ring->num_segs += num_segs; in xhci_link_rings()
149 if (ring->type != TYPE_EVENT && ring->enq_seg == ring->last_seg) { in xhci_link_rings()
150 ring->last_seg->trbs[TRBS_PER_SEGMENT-1].link.control in xhci_link_rings()
152 last->trbs[TRBS_PER_SEGMENT-1].link.control in xhci_link_rings()
154 ring->last_seg = last; in xhci_link_rings()
181 * The radix tree uses an unsigned long as a key pair. On 32-bit systems, an
182 * unsigned long will be 32-bits; on a 64-bit system an unsigned long will be
183 * 64-bits. Since we only request 32-bit DMA addresses, we can use that as the
184 * key on 32-bit or 64-bit systems (it would also be fine if we asked for 64-bit
185 * PCI DMA addresses on a 64-bit system). There might be a problem on 32-bit
186 * extended systems (where the DMA address can be bigger than 32-bits),
187 * if we allow the PCI dma mask to be bigger than 32-bits. So don't do that.
197 key = (unsigned long)(seg->dma >> TRB_SEGMENT_SHIFT); in xhci_insert_segment_mapping()
216 key = (unsigned long)(seg->dma >> TRB_SEGMENT_SHIFT); in xhci_remove_segment_mapping()
243 seg = seg->next; in xhci_update_stream_segment_mapping()
255 seg = seg->next; in xhci_update_stream_segment_mapping()
265 if (WARN_ON_ONCE(ring->trb_address_map == NULL)) in xhci_remove_stream_mapping()
268 seg = ring->first_seg; in xhci_remove_stream_mapping()
270 xhci_remove_segment_mapping(ring->trb_address_map, seg); in xhci_remove_stream_mapping()
271 seg = seg->next; in xhci_remove_stream_mapping()
272 } while (seg != ring->first_seg); in xhci_remove_stream_mapping()
277 return xhci_update_stream_segment_mapping(ring->trb_address_map, ring, in xhci_update_stream_mapping()
278 ring->first_seg, ring->last_seg, mem_flags); in xhci_update_stream_mapping()
282 void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring) in xhci_ring_free() argument
289 if (ring->first_seg) { in xhci_ring_free()
290 if (ring->type == TYPE_STREAM) in xhci_ring_free()
292 xhci_free_segments_for_ring(xhci, ring->first_seg); in xhci_ring_free()
302 ring->enqueue = ring->first_seg->trbs; in xhci_initialize_ring_info()
303 ring->enq_seg = ring->first_seg; in xhci_initialize_ring_info()
304 ring->dequeue = ring->enqueue; in xhci_initialize_ring_info()
305 ring->deq_seg = ring->first_seg; in xhci_initialize_ring_info()
313 ring->cycle_state = cycle_state; in xhci_initialize_ring_info()
319 ring->num_trbs_free = ring->num_segs * (TRBS_PER_SEGMENT - 1) - 1; in xhci_initialize_ring_info()
324 static int xhci_alloc_segments_for_ring(struct xhci_hcd *xhci, in xhci_alloc_segments_for_ring() argument
334 chain_links = !!(xhci_link_trb_quirk(xhci) || in xhci_alloc_segments_for_ring()
336 (xhci->quirks & XHCI_AMD_0x96_HOST))); in xhci_alloc_segments_for_ring()
338 prev = xhci_segment_alloc(xhci, cycle_state, max_packet, num, flags); in xhci_alloc_segments_for_ring()
340 return -ENOMEM; in xhci_alloc_segments_for_ring()
347 next = xhci_segment_alloc(xhci, cycle_state, max_packet, num, in xhci_alloc_segments_for_ring()
352 next = prev->next; in xhci_alloc_segments_for_ring()
353 xhci_segment_free(xhci, prev); in xhci_alloc_segments_for_ring()
356 return -ENOMEM; in xhci_alloc_segments_for_ring()
376 struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, in xhci_ring_alloc() argument
382 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_ring_alloc()
388 ring->num_segs = num_segs; in xhci_ring_alloc()
389 ring->bounce_buf_len = max_packet; in xhci_ring_alloc()
390 INIT_LIST_HEAD(&ring->td_list); in xhci_ring_alloc()
391 ring->type = type; in xhci_ring_alloc()
395 ret = xhci_alloc_segments_for_ring(xhci, &ring->first_seg, in xhci_ring_alloc()
396 &ring->last_seg, num_segs, cycle_state, type, in xhci_ring_alloc()
404 ring->last_seg->trbs[TRBS_PER_SEGMENT - 1].link.control |= in xhci_ring_alloc()
416 void xhci_free_endpoint_ring(struct xhci_hcd *xhci, in xhci_free_endpoint_ring() argument
420 xhci_ring_free(xhci, virt_dev->eps[ep_index].ring); in xhci_free_endpoint_ring()
421 virt_dev->eps[ep_index].ring = NULL; in xhci_free_endpoint_ring()
428 int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring, in xhci_ring_expansion() argument
435 ret = xhci_alloc_segments_for_ring(xhci, &first, &last, in xhci_ring_expansion()
436 num_new_segs, ring->cycle_state, ring->type, in xhci_ring_expansion()
437 ring->bounce_buf_len, flags); in xhci_ring_expansion()
439 return -ENOMEM; in xhci_ring_expansion()
441 if (ring->type == TYPE_STREAM) in xhci_ring_expansion()
442 ret = xhci_update_stream_segment_mapping(ring->trb_address_map, in xhci_ring_expansion()
447 next = first->next; in xhci_ring_expansion()
448 xhci_segment_free(xhci, first); in xhci_ring_expansion()
456 xhci_link_rings(xhci, ring, first, last, num_new_segs); in xhci_ring_expansion()
458 xhci_dbg_trace(xhci, trace_xhci_dbg_ring_expansion, in xhci_ring_expansion()
460 ring->num_segs); in xhci_ring_expansion()
465 struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci, in xhci_alloc_container_ctx() argument
469 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_container_ctx()
478 ctx->type = type; in xhci_alloc_container_ctx()
479 ctx->size = HCC_64BYTE_CONTEXT(xhci->hcc_params) ? 2048 : 1024; in xhci_alloc_container_ctx()
481 ctx->size += CTX_SIZE(xhci->hcc_params); in xhci_alloc_container_ctx()
483 ctx->bytes = dma_pool_zalloc(xhci->device_pool, flags, &ctx->dma); in xhci_alloc_container_ctx()
484 if (!ctx->bytes) { in xhci_alloc_container_ctx()
491 void xhci_free_container_ctx(struct xhci_hcd *xhci, in xhci_free_container_ctx() argument
496 dma_pool_free(xhci->device_pool, ctx->bytes, ctx->dma); in xhci_free_container_ctx()
503 if (ctx->type != XHCI_CTX_TYPE_INPUT) in xhci_get_input_control_ctx()
506 return (struct xhci_input_control_ctx *)ctx->bytes; in xhci_get_input_control_ctx()
509 struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, in xhci_get_slot_ctx() argument
512 if (ctx->type == XHCI_CTX_TYPE_DEVICE) in xhci_get_slot_ctx()
513 return (struct xhci_slot_ctx *)ctx->bytes; in xhci_get_slot_ctx()
516 (ctx->bytes + CTX_SIZE(xhci->hcc_params)); in xhci_get_slot_ctx()
519 struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, in xhci_get_ep_ctx() argument
525 if (ctx->type == XHCI_CTX_TYPE_INPUT) in xhci_get_ep_ctx()
529 (ctx->bytes + (ep_index * CTX_SIZE(xhci->hcc_params))); in xhci_get_ep_ctx()
535 static void xhci_free_stream_ctx(struct xhci_hcd *xhci, in xhci_free_stream_ctx() argument
539 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_free_stream_ctx()
545 dma_pool_free(xhci->medium_streams_pool, stream_ctx, dma); in xhci_free_stream_ctx()
547 dma_pool_free(xhci->small_streams_pool, stream_ctx, dma); in xhci_free_stream_ctx()
553 * - how many streams the endpoint supports,
554 * - the maximum primary stream array size the host controller supports,
555 * - and how many streams the device driver asks for.
560 static struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci, in xhci_alloc_stream_ctx() argument
564 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_stream_ctx()
570 return dma_pool_zalloc(xhci->medium_streams_pool, mem_flags, dma); in xhci_alloc_stream_ctx()
572 return dma_pool_zalloc(xhci->small_streams_pool, mem_flags, dma); in xhci_alloc_stream_ctx()
579 if (ep->ep_state & EP_HAS_STREAMS) in xhci_dma_to_transfer_ring()
580 return radix_tree_lookup(&ep->stream_info->trb_address_map, in xhci_dma_to_transfer_ring()
582 return ep->ring; in xhci_dma_to_transfer_ring()
594 struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, in xhci_alloc_stream_info() argument
604 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_stream_info()
606 xhci_dbg(xhci, "Allocating %u streams and %u stream context array entries.\n", in xhci_alloc_stream_info()
608 if (xhci->cmd_ring_reserved_trbs == MAX_RSVD_CMD_TRBS) { in xhci_alloc_stream_info()
609 xhci_dbg(xhci, "Command ring has no reserved TRBs available\n"); in xhci_alloc_stream_info()
612 xhci->cmd_ring_reserved_trbs++; in xhci_alloc_stream_info()
619 stream_info->num_streams = num_streams; in xhci_alloc_stream_info()
620 stream_info->num_stream_ctxs = num_stream_ctxs; in xhci_alloc_stream_info()
623 stream_info->stream_rings = kcalloc_node( in xhci_alloc_stream_info()
626 if (!stream_info->stream_rings) in xhci_alloc_stream_info()
630 stream_info->stream_ctx_array = xhci_alloc_stream_ctx(xhci, in xhci_alloc_stream_info()
631 num_stream_ctxs, &stream_info->ctx_array_dma, in xhci_alloc_stream_info()
633 if (!stream_info->stream_ctx_array) in xhci_alloc_stream_info()
637 stream_info->free_streams_command = in xhci_alloc_stream_info()
638 xhci_alloc_command_with_ctx(xhci, true, mem_flags); in xhci_alloc_stream_info()
639 if (!stream_info->free_streams_command) in xhci_alloc_stream_info()
642 INIT_RADIX_TREE(&stream_info->trb_address_map, GFP_ATOMIC); in xhci_alloc_stream_info()
650 stream_info->stream_rings[cur_stream] = in xhci_alloc_stream_info()
651 xhci_ring_alloc(xhci, 2, 1, TYPE_STREAM, max_packet, in xhci_alloc_stream_info()
653 cur_ring = stream_info->stream_rings[cur_stream]; in xhci_alloc_stream_info()
656 cur_ring->stream_id = cur_stream; in xhci_alloc_stream_info()
657 cur_ring->trb_address_map = &stream_info->trb_address_map; in xhci_alloc_stream_info()
659 addr = cur_ring->first_seg->dma | in xhci_alloc_stream_info()
661 cur_ring->cycle_state; in xhci_alloc_stream_info()
662 stream_info->stream_ctx_array[cur_stream].stream_ring = in xhci_alloc_stream_info()
664 xhci_dbg(xhci, "Setting stream %d ring ptr to 0x%08llx\n", cur_stream, addr); in xhci_alloc_stream_info()
668 xhci_ring_free(xhci, cur_ring); in xhci_alloc_stream_info()
669 stream_info->stream_rings[cur_stream] = NULL; in xhci_alloc_stream_info()
684 cur_ring = stream_info->stream_rings[cur_stream]; in xhci_alloc_stream_info()
686 xhci_ring_free(xhci, cur_ring); in xhci_alloc_stream_info()
687 stream_info->stream_rings[cur_stream] = NULL; in xhci_alloc_stream_info()
690 xhci_free_command(xhci, stream_info->free_streams_command); in xhci_alloc_stream_info()
692 xhci_free_stream_ctx(xhci, in xhci_alloc_stream_info()
693 stream_info->num_stream_ctxs, in xhci_alloc_stream_info()
694 stream_info->stream_ctx_array, in xhci_alloc_stream_info()
695 stream_info->ctx_array_dma); in xhci_alloc_stream_info()
697 kfree(stream_info->stream_rings); in xhci_alloc_stream_info()
701 xhci->cmd_ring_reserved_trbs--; in xhci_alloc_stream_info()
708 void xhci_setup_streams_ep_input_ctx(struct xhci_hcd *xhci, in xhci_setup_streams_ep_input_ctx() argument
717 max_primary_streams = fls(stream_info->num_stream_ctxs) - 2; in xhci_setup_streams_ep_input_ctx()
718 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_setup_streams_ep_input_ctx()
721 ep_ctx->ep_info &= cpu_to_le32(~EP_MAXPSTREAMS_MASK); in xhci_setup_streams_ep_input_ctx()
722 ep_ctx->ep_info |= cpu_to_le32(EP_MAXPSTREAMS(max_primary_streams) in xhci_setup_streams_ep_input_ctx()
724 ep_ctx->deq = cpu_to_le64(stream_info->ctx_array_dma); in xhci_setup_streams_ep_input_ctx()
736 ep_ctx->ep_info &= cpu_to_le32(~(EP_MAXPSTREAMS_MASK | EP_HAS_LSA)); in xhci_setup_no_streams_ep_input_ctx()
737 addr = xhci_trb_virt_to_dma(ep->ring->deq_seg, ep->ring->dequeue); in xhci_setup_no_streams_ep_input_ctx()
738 ep_ctx->deq = cpu_to_le64(addr | ep->ring->cycle_state); in xhci_setup_no_streams_ep_input_ctx()
745 void xhci_free_stream_info(struct xhci_hcd *xhci, in xhci_free_stream_info() argument
754 for (cur_stream = 1; cur_stream < stream_info->num_streams; in xhci_free_stream_info()
756 cur_ring = stream_info->stream_rings[cur_stream]; in xhci_free_stream_info()
758 xhci_ring_free(xhci, cur_ring); in xhci_free_stream_info()
759 stream_info->stream_rings[cur_stream] = NULL; in xhci_free_stream_info()
762 xhci_free_command(xhci, stream_info->free_streams_command); in xhci_free_stream_info()
763 xhci->cmd_ring_reserved_trbs--; in xhci_free_stream_info()
764 if (stream_info->stream_ctx_array) in xhci_free_stream_info()
765 xhci_free_stream_ctx(xhci, in xhci_free_stream_info()
766 stream_info->num_stream_ctxs, in xhci_free_stream_info()
767 stream_info->stream_ctx_array, in xhci_free_stream_info()
768 stream_info->ctx_array_dma); in xhci_free_stream_info()
770 kfree(stream_info->stream_rings); in xhci_free_stream_info()
777 static void xhci_free_tt_info(struct xhci_hcd *xhci, in xhci_free_tt_info() argument
788 if (virt_dev->real_port == 0 || in xhci_free_tt_info()
789 virt_dev->real_port > HCS_MAX_PORTS(xhci->hcs_params1)) { in xhci_free_tt_info()
790 xhci_dbg(xhci, "Bad real port.\n"); in xhci_free_tt_info()
794 tt_list_head = &(xhci->rh_bw[virt_dev->real_port - 1].tts); in xhci_free_tt_info()
796 /* Multi-TT hubs will have more than one entry */ in xhci_free_tt_info()
797 if (tt_info->slot_id == slot_id) { in xhci_free_tt_info()
799 list_del(&tt_info->tt_list); in xhci_free_tt_info()
807 int xhci_alloc_tt_info(struct xhci_hcd *xhci, in xhci_alloc_tt_info() argument
815 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_tt_info()
817 if (!tt->multi) in xhci_alloc_tt_info()
820 num_ports = hdev->maxchild; in xhci_alloc_tt_info()
829 INIT_LIST_HEAD(&tt_info->tt_list); in xhci_alloc_tt_info()
830 list_add(&tt_info->tt_list, in xhci_alloc_tt_info()
831 &xhci->rh_bw[virt_dev->real_port - 1].tts); in xhci_alloc_tt_info()
832 tt_info->slot_id = virt_dev->udev->slot_id; in xhci_alloc_tt_info()
833 if (tt->multi) in xhci_alloc_tt_info()
834 tt_info->ttport = i+1; in xhci_alloc_tt_info()
835 bw_table = &tt_info->bw_table; in xhci_alloc_tt_info()
837 INIT_LIST_HEAD(&bw_table->interval_bw[j].endpoints); in xhci_alloc_tt_info()
842 xhci_free_tt_info(xhci, virt_dev, virt_dev->udev->slot_id); in xhci_alloc_tt_info()
843 return -ENOMEM; in xhci_alloc_tt_info()
848 * Should be called with xhci->lock held if there is any chance the TT lists
852 void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id) in xhci_free_virt_device() argument
859 if (slot_id == 0 || !xhci->devs[slot_id]) in xhci_free_virt_device()
862 dev = xhci->devs[slot_id]; in xhci_free_virt_device()
864 xhci->dcbaa->dev_context_ptrs[slot_id] = 0; in xhci_free_virt_device()
870 if (dev->tt_info) in xhci_free_virt_device()
871 old_active_eps = dev->tt_info->active_eps; in xhci_free_virt_device()
874 if (dev->eps[i].ring) in xhci_free_virt_device()
875 xhci_ring_free(xhci, dev->eps[i].ring); in xhci_free_virt_device()
876 if (dev->eps[i].stream_info) in xhci_free_virt_device()
877 xhci_free_stream_info(xhci, in xhci_free_virt_device()
878 dev->eps[i].stream_info); in xhci_free_virt_device()
887 if (!list_empty(&dev->eps[i].bw_endpoint_list)) { in xhci_free_virt_device()
888 list_del_init(&dev->eps[i].bw_endpoint_list); in xhci_free_virt_device()
889 xhci_dbg(xhci, "Slot %u endpoint %u not removed from BW list!\n", in xhci_free_virt_device()
894 xhci_free_tt_info(xhci, dev, slot_id); in xhci_free_virt_device()
896 xhci_update_tt_active_eps(xhci, dev, old_active_eps); in xhci_free_virt_device()
898 if (dev->in_ctx) in xhci_free_virt_device()
899 xhci_free_container_ctx(xhci, dev->in_ctx); in xhci_free_virt_device()
900 if (dev->out_ctx) in xhci_free_virt_device()
901 xhci_free_container_ctx(xhci, dev->out_ctx); in xhci_free_virt_device()
903 if (dev->udev && dev->udev->slot_id) in xhci_free_virt_device()
904 dev->udev->slot_id = 0; in xhci_free_virt_device()
905 kfree(xhci->devs[slot_id]); in xhci_free_virt_device()
906 xhci->devs[slot_id] = NULL; in xhci_free_virt_device()
913 * We can't rely on udev at this point to find child-parent relationships.
915 static void xhci_free_virt_devices_depth_first(struct xhci_hcd *xhci, int slot_id) in xhci_free_virt_devices_depth_first() argument
922 vdev = xhci->devs[slot_id]; in xhci_free_virt_devices_depth_first()
926 if (vdev->real_port == 0 || in xhci_free_virt_devices_depth_first()
927 vdev->real_port > HCS_MAX_PORTS(xhci->hcs_params1)) { in xhci_free_virt_devices_depth_first()
928 xhci_dbg(xhci, "Bad vdev->real_port.\n"); in xhci_free_virt_devices_depth_first()
932 tt_list_head = &(xhci->rh_bw[vdev->real_port - 1].tts); in xhci_free_virt_devices_depth_first()
935 if (tt_info->slot_id == slot_id) { in xhci_free_virt_devices_depth_first()
937 for (i = 1; i < HCS_MAX_SLOTS(xhci->hcs_params1); i++) { in xhci_free_virt_devices_depth_first()
938 vdev = xhci->devs[i]; in xhci_free_virt_devices_depth_first()
939 if (vdev && (vdev->tt_info == tt_info)) in xhci_free_virt_devices_depth_first()
941 xhci, i); in xhci_free_virt_devices_depth_first()
947 xhci_debugfs_remove_slot(xhci, slot_id); in xhci_free_virt_devices_depth_first()
948 xhci_free_virt_device(xhci, slot_id); in xhci_free_virt_devices_depth_first()
951 int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, in xhci_alloc_virt_device() argument
958 if (slot_id == 0 || xhci->devs[slot_id]) { in xhci_alloc_virt_device()
959 xhci_warn(xhci, "Bad Slot ID %d\n", slot_id); in xhci_alloc_virt_device()
967 dev->slot_id = slot_id; in xhci_alloc_virt_device()
970 dev->out_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_DEVICE, flags); in xhci_alloc_virt_device()
971 if (!dev->out_ctx) in xhci_alloc_virt_device()
974 xhci_dbg(xhci, "Slot %d output ctx = 0x%pad (dma)\n", slot_id, &dev->out_ctx->dma); in xhci_alloc_virt_device()
977 dev->in_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_INPUT, flags); in xhci_alloc_virt_device()
978 if (!dev->in_ctx) in xhci_alloc_virt_device()
981 xhci_dbg(xhci, "Slot %d input ctx = 0x%pad (dma)\n", slot_id, &dev->in_ctx->dma); in xhci_alloc_virt_device()
985 dev->eps[i].ep_index = i; in xhci_alloc_virt_device()
986 dev->eps[i].vdev = dev; in xhci_alloc_virt_device()
987 dev->eps[i].xhci = xhci; in xhci_alloc_virt_device()
988 INIT_LIST_HEAD(&dev->eps[i].cancelled_td_list); in xhci_alloc_virt_device()
989 INIT_LIST_HEAD(&dev->eps[i].bw_endpoint_list); in xhci_alloc_virt_device()
993 dev->eps[0].ring = xhci_ring_alloc(xhci, 2, 1, TYPE_CTRL, 0, flags); in xhci_alloc_virt_device()
994 if (!dev->eps[0].ring) in xhci_alloc_virt_device()
997 dev->udev = udev; in xhci_alloc_virt_device()
1000 xhci->dcbaa->dev_context_ptrs[slot_id] = cpu_to_le64(dev->out_ctx->dma); in xhci_alloc_virt_device()
1001 xhci_dbg(xhci, "Set slot id %d dcbaa entry %p to 0x%llx\n", in xhci_alloc_virt_device()
1003 &xhci->dcbaa->dev_context_ptrs[slot_id], in xhci_alloc_virt_device()
1004 le64_to_cpu(xhci->dcbaa->dev_context_ptrs[slot_id])); in xhci_alloc_virt_device()
1008 xhci->devs[slot_id] = dev; in xhci_alloc_virt_device()
1013 if (dev->in_ctx) in xhci_alloc_virt_device()
1014 xhci_free_container_ctx(xhci, dev->in_ctx); in xhci_alloc_virt_device()
1015 if (dev->out_ctx) in xhci_alloc_virt_device()
1016 xhci_free_container_ctx(xhci, dev->out_ctx); in xhci_alloc_virt_device()
1022 void xhci_copy_ep0_dequeue_into_input_ctx(struct xhci_hcd *xhci, in xhci_copy_ep0_dequeue_into_input_ctx() argument
1029 virt_dev = xhci->devs[udev->slot_id]; in xhci_copy_ep0_dequeue_into_input_ctx()
1030 ep0_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, 0); in xhci_copy_ep0_dequeue_into_input_ctx()
1031 ep_ring = virt_dev->eps[0].ring; in xhci_copy_ep0_dequeue_into_input_ctx()
1039 ep0_ctx->deq = cpu_to_le64(xhci_trb_virt_to_dma(ep_ring->enq_seg, in xhci_copy_ep0_dequeue_into_input_ctx()
1040 ep_ring->enqueue) in xhci_copy_ep0_dequeue_into_input_ctx()
1041 | ep_ring->cycle_state); in xhci_copy_ep0_dequeue_into_input_ctx()
1045 * The xHCI roothub may have ports of differing speeds in any order in the port
1048 * The xHCI hardware wants to know the roothub port number that the USB device
1054 static u32 xhci_find_real_port_number(struct xhci_hcd *xhci, in xhci_find_real_port_number() argument
1060 if (udev->speed >= USB_SPEED_SUPER) in xhci_find_real_port_number()
1061 hcd = xhci_get_usb3_hcd(xhci); in xhci_find_real_port_number()
1063 hcd = xhci->main_hcd; in xhci_find_real_port_number()
1065 for (top_dev = udev; top_dev->parent && top_dev->parent->parent; in xhci_find_real_port_number()
1066 top_dev = top_dev->parent) in xhci_find_real_port_number()
1069 return xhci_find_raw_port_number(hcd, top_dev->portnum); in xhci_find_real_port_number()
1072 /* Setup an xHCI virtual device for a Set Address command */
1073 int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *udev) in xhci_setup_addressable_virt_dev() argument
1082 dev = xhci->devs[udev->slot_id]; in xhci_setup_addressable_virt_dev()
1084 if (udev->slot_id == 0 || !dev) { in xhci_setup_addressable_virt_dev()
1085 xhci_warn(xhci, "Slot ID %d is not assigned to this device\n", in xhci_setup_addressable_virt_dev()
1086 udev->slot_id); in xhci_setup_addressable_virt_dev()
1087 return -EINVAL; in xhci_setup_addressable_virt_dev()
1089 ep0_ctx = xhci_get_ep_ctx(xhci, dev->in_ctx, 0); in xhci_setup_addressable_virt_dev()
1090 slot_ctx = xhci_get_slot_ctx(xhci, dev->in_ctx); in xhci_setup_addressable_virt_dev()
1092 /* 3) Only the control endpoint is valid - one endpoint context */ in xhci_setup_addressable_virt_dev()
1093 slot_ctx->dev_info |= cpu_to_le32(LAST_CTX(1) | udev->route); in xhci_setup_addressable_virt_dev()
1094 switch (udev->speed) { in xhci_setup_addressable_virt_dev()
1096 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_SSP); in xhci_setup_addressable_virt_dev()
1100 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_SS); in xhci_setup_addressable_virt_dev()
1104 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_HS); in xhci_setup_addressable_virt_dev()
1107 /* USB core guesses at a 64-byte max packet first for FS devices */ in xhci_setup_addressable_virt_dev()
1109 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_FS); in xhci_setup_addressable_virt_dev()
1113 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_LS); in xhci_setup_addressable_virt_dev()
1118 return -EINVAL; in xhci_setup_addressable_virt_dev()
1121 port_num = xhci_find_real_port_number(xhci, udev); in xhci_setup_addressable_virt_dev()
1123 return -EINVAL; in xhci_setup_addressable_virt_dev()
1124 slot_ctx->dev_info2 |= cpu_to_le32(ROOT_HUB_PORT(port_num)); in xhci_setup_addressable_virt_dev()
1126 for (top_dev = udev; top_dev->parent && top_dev->parent->parent; in xhci_setup_addressable_virt_dev()
1127 top_dev = top_dev->parent) in xhci_setup_addressable_virt_dev()
1129 dev->fake_port = top_dev->portnum; in xhci_setup_addressable_virt_dev()
1130 dev->real_port = port_num; in xhci_setup_addressable_virt_dev()
1131 xhci_dbg(xhci, "Set root hub portnum to %d\n", port_num); in xhci_setup_addressable_virt_dev()
1132 xhci_dbg(xhci, "Set fake root hub portnum to %d\n", dev->fake_port); in xhci_setup_addressable_virt_dev()
1140 if (!udev->tt || !udev->tt->hub->parent) { in xhci_setup_addressable_virt_dev()
1141 dev->bw_table = &xhci->rh_bw[port_num - 1].bw_table; in xhci_setup_addressable_virt_dev()
1146 rh_bw = &xhci->rh_bw[port_num - 1]; in xhci_setup_addressable_virt_dev()
1148 list_for_each_entry(tt_bw, &rh_bw->tts, tt_list) { in xhci_setup_addressable_virt_dev()
1149 if (tt_bw->slot_id != udev->tt->hub->slot_id) in xhci_setup_addressable_virt_dev()
1152 if (!dev->udev->tt->multi || in xhci_setup_addressable_virt_dev()
1153 (udev->tt->multi && in xhci_setup_addressable_virt_dev()
1154 tt_bw->ttport == dev->udev->ttport)) { in xhci_setup_addressable_virt_dev()
1155 dev->bw_table = &tt_bw->bw_table; in xhci_setup_addressable_virt_dev()
1156 dev->tt_info = tt_bw; in xhci_setup_addressable_virt_dev()
1160 if (!dev->tt_info) in xhci_setup_addressable_virt_dev()
1161 xhci_warn(xhci, "WARN: Didn't find a matching TT\n"); in xhci_setup_addressable_virt_dev()
1165 if (udev->tt && udev->tt->hub->parent) { in xhci_setup_addressable_virt_dev()
1166 slot_ctx->tt_info = cpu_to_le32(udev->tt->hub->slot_id | in xhci_setup_addressable_virt_dev()
1167 (udev->ttport << 8)); in xhci_setup_addressable_virt_dev()
1168 if (udev->tt->multi) in xhci_setup_addressable_virt_dev()
1169 slot_ctx->dev_info |= cpu_to_le32(DEV_MTT); in xhci_setup_addressable_virt_dev()
1171 xhci_dbg(xhci, "udev->tt = %p\n", udev->tt); in xhci_setup_addressable_virt_dev()
1172 xhci_dbg(xhci, "udev->ttport = 0x%x\n", udev->ttport); in xhci_setup_addressable_virt_dev()
1174 /* Step 4 - ring already allocated */ in xhci_setup_addressable_virt_dev()
1176 ep0_ctx->ep_info2 = cpu_to_le32(EP_TYPE(CTRL_EP)); in xhci_setup_addressable_virt_dev()
1179 ep0_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(0) | ERROR_COUNT(3) | in xhci_setup_addressable_virt_dev()
1182 ep0_ctx->deq = cpu_to_le64(dev->eps[0].ring->first_seg->dma | in xhci_setup_addressable_virt_dev()
1183 dev->eps[0].ring->cycle_state); in xhci_setup_addressable_virt_dev()
1193 * Convert interval expressed as 2^(bInterval - 1) == interval into
1202 interval = clamp_val(ep->desc.bInterval, 1, 16) - 1; in xhci_parse_exponent_interval()
1203 if (interval != ep->desc.bInterval - 1) in xhci_parse_exponent_interval()
1204 dev_warn(&udev->dev, in xhci_parse_exponent_interval()
1205 "ep %#x - rounding interval to %d %sframes\n", in xhci_parse_exponent_interval()
1206 ep->desc.bEndpointAddress, in xhci_parse_exponent_interval()
1208 udev->speed == USB_SPEED_FULL ? "" : "micro"); in xhci_parse_exponent_interval()
1210 if (udev->speed == USB_SPEED_FULL) { in xhci_parse_exponent_interval()
1223 * Convert bInterval expressed in microframes (in 1-255 range) to exponent of
1232 interval = fls(desc_interval) - 1; in xhci_microframes_to_exponent()
1235 dev_dbg(&udev->dev, in xhci_microframes_to_exponent()
1236 "ep %#x - rounding interval to %d microframes, ep desc says %d microframes\n", in xhci_microframes_to_exponent()
1237 ep->desc.bEndpointAddress, in xhci_microframes_to_exponent()
1247 if (ep->desc.bInterval == 0) in xhci_parse_microframe_interval()
1250 ep->desc.bInterval, 0, 15); in xhci_parse_microframe_interval()
1258 ep->desc.bInterval * 8, 3, 10); in xhci_parse_frame_interval()
1263 * The polling interval is expressed in "microframes". If xHCI's Interval field
1274 switch (udev->speed) { in xhci_get_endpoint_interval()
1277 if (usb_endpoint_xfer_control(&ep->desc) || in xhci_get_endpoint_interval()
1278 usb_endpoint_xfer_bulk(&ep->desc)) { in xhci_get_endpoint_interval()
1286 if (usb_endpoint_xfer_int(&ep->desc) || in xhci_get_endpoint_interval()
1287 usb_endpoint_xfer_isoc(&ep->desc)) { in xhci_get_endpoint_interval()
1293 if (usb_endpoint_xfer_isoc(&ep->desc)) { in xhci_get_endpoint_interval()
1305 if (usb_endpoint_xfer_int(&ep->desc) || in xhci_get_endpoint_interval()
1306 usb_endpoint_xfer_isoc(&ep->desc)) { in xhci_get_endpoint_interval()
1326 if (udev->speed < USB_SPEED_SUPER || in xhci_get_endpoint_mult()
1327 !usb_endpoint_xfer_isoc(&ep->desc)) in xhci_get_endpoint_mult()
1329 return ep->ss_ep_comp.bmAttributes; in xhci_get_endpoint_mult()
1336 if (udev->speed >= USB_SPEED_SUPER) in xhci_get_endpoint_max_burst()
1337 return ep->ss_ep_comp.bMaxBurst; in xhci_get_endpoint_max_burst()
1339 if (udev->speed == USB_SPEED_HIGH && in xhci_get_endpoint_max_burst()
1340 (usb_endpoint_xfer_isoc(&ep->desc) || in xhci_get_endpoint_max_burst()
1341 usb_endpoint_xfer_int(&ep->desc))) in xhci_get_endpoint_max_burst()
1342 return usb_endpoint_maxp_mult(&ep->desc) - 1; in xhci_get_endpoint_max_burst()
1351 in = usb_endpoint_dir_in(&ep->desc); in xhci_get_endpoint_type()
1353 switch (usb_endpoint_type(&ep->desc)) { in xhci_get_endpoint_type()
1377 if (usb_endpoint_xfer_control(&ep->desc) || in xhci_get_max_esit_payload()
1378 usb_endpoint_xfer_bulk(&ep->desc)) in xhci_get_max_esit_payload()
1382 if ((udev->speed >= USB_SPEED_SUPER_PLUS) && in xhci_get_max_esit_payload()
1383 USB_SS_SSP_ISOC_COMP(ep->ss_ep_comp.bmAttributes)) in xhci_get_max_esit_payload()
1384 return le32_to_cpu(ep->ssp_isoc_ep_comp.dwBytesPerInterval); in xhci_get_max_esit_payload()
1387 if (udev->speed >= USB_SPEED_SUPER) in xhci_get_max_esit_payload()
1388 return le16_to_cpu(ep->ss_ep_comp.wBytesPerInterval); in xhci_get_max_esit_payload()
1390 max_packet = usb_endpoint_maxp(&ep->desc); in xhci_get_max_esit_payload()
1391 max_burst = usb_endpoint_maxp_mult(&ep->desc); in xhci_get_max_esit_payload()
1399 int xhci_endpoint_init(struct xhci_hcd *xhci, in xhci_endpoint_init() argument
1418 ep_index = xhci_get_endpoint_index(&ep->desc); in xhci_endpoint_init()
1419 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index); in xhci_endpoint_init()
1423 return -EINVAL; in xhci_endpoint_init()
1425 ring_type = usb_endpoint_type(&ep->desc); in xhci_endpoint_init()
1431 * set it to max available. See xHCI 1.1 spec 4.14.1.1 for details. in xhci_endpoint_init()
1437 if (usb_endpoint_xfer_int(&ep->desc) || in xhci_endpoint_init()
1438 usb_endpoint_xfer_isoc(&ep->desc)) { in xhci_endpoint_init()
1439 if ((xhci->quirks & XHCI_LIMIT_ENDPOINT_INTERVAL_7) && in xhci_endpoint_init()
1440 udev->speed >= USB_SPEED_HIGH && in xhci_endpoint_init()
1447 max_packet = usb_endpoint_maxp(&ep->desc); in xhci_endpoint_init()
1454 if (!usb_endpoint_xfer_isoc(&ep->desc)) in xhci_endpoint_init()
1457 if (usb_endpoint_xfer_bulk(&ep->desc)) { in xhci_endpoint_init()
1458 if (udev->speed == USB_SPEED_HIGH) in xhci_endpoint_init()
1460 if (udev->speed == USB_SPEED_FULL) { in xhci_endpoint_init()
1465 /* xHCI 1.0 and 1.1 indicates that ctrl ep avg TRB Length should be 8 */ in xhci_endpoint_init()
1466 if (usb_endpoint_xfer_control(&ep->desc) && xhci->hci_version >= 0x100) in xhci_endpoint_init()
1468 /* xhci 1.1 with LEC support doesn't use mult field, use RsvdZ */ in xhci_endpoint_init()
1469 if ((xhci->hci_version > 0x100) && HCC2_LEC(xhci->hcc_params2)) in xhci_endpoint_init()
1473 virt_dev->eps[ep_index].new_ring = in xhci_endpoint_init()
1474 xhci_ring_alloc(xhci, 2, 1, ring_type, max_packet, mem_flags); in xhci_endpoint_init()
1475 if (!virt_dev->eps[ep_index].new_ring) in xhci_endpoint_init()
1476 return -ENOMEM; in xhci_endpoint_init()
1478 virt_dev->eps[ep_index].skip = false; in xhci_endpoint_init()
1479 ep_ring = virt_dev->eps[ep_index].new_ring; in xhci_endpoint_init()
1482 ep_ctx->ep_info = cpu_to_le32(EP_MAX_ESIT_PAYLOAD_HI(max_esit_payload) | in xhci_endpoint_init()
1485 ep_ctx->ep_info2 = cpu_to_le32(EP_TYPE(endpoint_type) | in xhci_endpoint_init()
1489 ep_ctx->deq = cpu_to_le64(ep_ring->first_seg->dma | in xhci_endpoint_init()
1490 ep_ring->cycle_state); in xhci_endpoint_init()
1492 ep_ctx->tx_info = cpu_to_le32(EP_MAX_ESIT_PAYLOAD_LO(max_esit_payload) | in xhci_endpoint_init()
1498 void xhci_endpoint_zero(struct xhci_hcd *xhci, in xhci_endpoint_zero() argument
1505 ep_index = xhci_get_endpoint_index(&ep->desc); in xhci_endpoint_zero()
1506 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index); in xhci_endpoint_zero()
1508 ep_ctx->ep_info = 0; in xhci_endpoint_zero()
1509 ep_ctx->ep_info2 = 0; in xhci_endpoint_zero()
1510 ep_ctx->deq = 0; in xhci_endpoint_zero()
1511 ep_ctx->tx_info = 0; in xhci_endpoint_zero()
1519 bw_info->ep_interval = 0; in xhci_clear_endpoint_bw_info()
1520 bw_info->mult = 0; in xhci_clear_endpoint_bw_info()
1521 bw_info->num_packets = 0; in xhci_clear_endpoint_bw_info()
1522 bw_info->max_packet_size = 0; in xhci_clear_endpoint_bw_info()
1523 bw_info->type = 0; in xhci_clear_endpoint_bw_info()
1524 bw_info->max_esit_payload = 0; in xhci_clear_endpoint_bw_info()
1527 void xhci_update_bw_info(struct xhci_hcd *xhci, in xhci_update_bw_info() argument
1538 bw_info = &virt_dev->eps[i].bw_info; in xhci_update_bw_info()
1541 * unconditionally clearing the bandwidth info for non-periodic in xhci_update_bw_info()
1552 ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, i); in xhci_update_bw_info()
1553 ep_type = CTX_TO_EP_TYPE(le32_to_cpu(ep_ctx->ep_info2)); in xhci_update_bw_info()
1555 /* Ignore non-periodic endpoints */ in xhci_update_bw_info()
1562 bw_info->ep_interval = CTX_TO_EP_INTERVAL( in xhci_update_bw_info()
1563 le32_to_cpu(ep_ctx->ep_info)); in xhci_update_bw_info()
1564 /* Number of packets and mult are zero-based in the in xhci_update_bw_info()
1565 * input context, but we want one-based for the in xhci_update_bw_info()
1568 bw_info->mult = CTX_TO_EP_MULT( in xhci_update_bw_info()
1569 le32_to_cpu(ep_ctx->ep_info)) + 1; in xhci_update_bw_info()
1570 bw_info->num_packets = CTX_TO_MAX_BURST( in xhci_update_bw_info()
1571 le32_to_cpu(ep_ctx->ep_info2)) + 1; in xhci_update_bw_info()
1572 bw_info->max_packet_size = MAX_PACKET_DECODED( in xhci_update_bw_info()
1573 le32_to_cpu(ep_ctx->ep_info2)); in xhci_update_bw_info()
1574 bw_info->type = ep_type; in xhci_update_bw_info()
1575 bw_info->max_esit_payload = CTX_TO_MAX_ESIT_PAYLOAD( in xhci_update_bw_info()
1576 le32_to_cpu(ep_ctx->tx_info)); in xhci_update_bw_info()
1585 void xhci_endpoint_copy(struct xhci_hcd *xhci, in xhci_endpoint_copy() argument
1593 out_ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index); in xhci_endpoint_copy()
1594 in_ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, ep_index); in xhci_endpoint_copy()
1596 in_ep_ctx->ep_info = out_ep_ctx->ep_info; in xhci_endpoint_copy()
1597 in_ep_ctx->ep_info2 = out_ep_ctx->ep_info2; in xhci_endpoint_copy()
1598 in_ep_ctx->deq = out_ep_ctx->deq; in xhci_endpoint_copy()
1599 in_ep_ctx->tx_info = out_ep_ctx->tx_info; in xhci_endpoint_copy()
1600 if (xhci->quirks & XHCI_MTK_HOST) { in xhci_endpoint_copy()
1601 in_ep_ctx->reserved[0] = out_ep_ctx->reserved[0]; in xhci_endpoint_copy()
1602 in_ep_ctx->reserved[1] = out_ep_ctx->reserved[1]; in xhci_endpoint_copy()
1611 void xhci_slot_copy(struct xhci_hcd *xhci, in xhci_slot_copy() argument
1618 in_slot_ctx = xhci_get_slot_ctx(xhci, in_ctx); in xhci_slot_copy()
1619 out_slot_ctx = xhci_get_slot_ctx(xhci, out_ctx); in xhci_slot_copy()
1621 in_slot_ctx->dev_info = out_slot_ctx->dev_info; in xhci_slot_copy()
1622 in_slot_ctx->dev_info2 = out_slot_ctx->dev_info2; in xhci_slot_copy()
1623 in_slot_ctx->tt_info = out_slot_ctx->tt_info; in xhci_slot_copy()
1624 in_slot_ctx->dev_state = out_slot_ctx->dev_state; in xhci_slot_copy()
1628 static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags) in scratchpad_alloc() argument
1631 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in scratchpad_alloc()
1632 int num_sp = HCS_MAX_SCRATCHPAD(xhci->hcs_params2); in scratchpad_alloc()
1634 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in scratchpad_alloc()
1640 xhci->scratchpad = kzalloc_node(sizeof(*xhci->scratchpad), flags, in scratchpad_alloc()
1642 if (!xhci->scratchpad) in scratchpad_alloc()
1645 xhci->scratchpad->sp_array = dma_alloc_coherent(dev, in scratchpad_alloc()
1647 &xhci->scratchpad->sp_dma, flags); in scratchpad_alloc()
1648 if (!xhci->scratchpad->sp_array) in scratchpad_alloc()
1651 xhci->scratchpad->sp_buffers = kcalloc_node(num_sp, sizeof(void *), in scratchpad_alloc()
1653 if (!xhci->scratchpad->sp_buffers) in scratchpad_alloc()
1656 xhci->dcbaa->dev_context_ptrs[0] = cpu_to_le64(xhci->scratchpad->sp_dma); in scratchpad_alloc()
1659 void *buf = dma_alloc_coherent(dev, xhci->page_size, &dma, in scratchpad_alloc()
1664 xhci->scratchpad->sp_array[i] = dma; in scratchpad_alloc()
1665 xhci->scratchpad->sp_buffers[i] = buf; in scratchpad_alloc()
1671 while (i--) in scratchpad_alloc()
1672 dma_free_coherent(dev, xhci->page_size, in scratchpad_alloc()
1673 xhci->scratchpad->sp_buffers[i], in scratchpad_alloc()
1674 xhci->scratchpad->sp_array[i]); in scratchpad_alloc()
1676 kfree(xhci->scratchpad->sp_buffers); in scratchpad_alloc()
1680 xhci->scratchpad->sp_array, in scratchpad_alloc()
1681 xhci->scratchpad->sp_dma); in scratchpad_alloc()
1684 kfree(xhci->scratchpad); in scratchpad_alloc()
1685 xhci->scratchpad = NULL; in scratchpad_alloc()
1688 return -ENOMEM; in scratchpad_alloc()
1691 static void scratchpad_free(struct xhci_hcd *xhci) in scratchpad_free() argument
1695 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in scratchpad_free()
1697 if (!xhci->scratchpad) in scratchpad_free()
1700 num_sp = HCS_MAX_SCRATCHPAD(xhci->hcs_params2); in scratchpad_free()
1703 dma_free_coherent(dev, xhci->page_size, in scratchpad_free()
1704 xhci->scratchpad->sp_buffers[i], in scratchpad_free()
1705 xhci->scratchpad->sp_array[i]); in scratchpad_free()
1707 kfree(xhci->scratchpad->sp_buffers); in scratchpad_free()
1709 xhci->scratchpad->sp_array, in scratchpad_free()
1710 xhci->scratchpad->sp_dma); in scratchpad_free()
1711 kfree(xhci->scratchpad); in scratchpad_free()
1712 xhci->scratchpad = NULL; in scratchpad_free()
1715 struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci, in xhci_alloc_command() argument
1719 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_command()
1726 command->completion = in xhci_alloc_command()
1729 if (!command->completion) { in xhci_alloc_command()
1733 init_completion(command->completion); in xhci_alloc_command()
1736 command->status = 0; in xhci_alloc_command()
1738 command->timeout_ms = XHCI_CMD_DEFAULT_TIMEOUT; in xhci_alloc_command()
1739 INIT_LIST_HEAD(&command->cmd_list); in xhci_alloc_command()
1743 struct xhci_command *xhci_alloc_command_with_ctx(struct xhci_hcd *xhci, in xhci_alloc_command_with_ctx() argument
1748 command = xhci_alloc_command(xhci, allocate_completion, mem_flags); in xhci_alloc_command_with_ctx()
1752 command->in_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_INPUT, in xhci_alloc_command_with_ctx()
1754 if (!command->in_ctx) { in xhci_alloc_command_with_ctx()
1755 kfree(command->completion); in xhci_alloc_command_with_ctx()
1767 void xhci_free_command(struct xhci_hcd *xhci, in xhci_free_command() argument
1770 xhci_free_container_ctx(xhci, in xhci_free_command()
1771 command->in_ctx); in xhci_free_command()
1772 kfree(command->completion); in xhci_free_command()
1776 int xhci_alloc_erst(struct xhci_hcd *xhci, in xhci_alloc_erst() argument
1786 size = size_mul(sizeof(struct xhci_erst_entry), evt_ring->num_segs); in xhci_alloc_erst()
1787 erst->entries = dma_alloc_coherent(xhci_to_hcd(xhci)->self.sysdev, in xhci_alloc_erst()
1788 size, &erst->erst_dma_addr, flags); in xhci_alloc_erst()
1789 if (!erst->entries) in xhci_alloc_erst()
1790 return -ENOMEM; in xhci_alloc_erst()
1792 erst->num_entries = evt_ring->num_segs; in xhci_alloc_erst()
1794 seg = evt_ring->first_seg; in xhci_alloc_erst()
1795 for (val = 0; val < evt_ring->num_segs; val++) { in xhci_alloc_erst()
1796 entry = &erst->entries[val]; in xhci_alloc_erst()
1797 entry->seg_addr = cpu_to_le64(seg->dma); in xhci_alloc_erst()
1798 entry->seg_size = cpu_to_le32(TRBS_PER_SEGMENT); in xhci_alloc_erst()
1799 entry->rsvd = 0; in xhci_alloc_erst()
1800 seg = seg->next; in xhci_alloc_erst()
1807 xhci_remove_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir) in xhci_remove_interrupter() argument
1819 if (ir->ir_set) { in xhci_remove_interrupter()
1820 tmp = readl(&ir->ir_set->erst_size); in xhci_remove_interrupter()
1822 writel(tmp, &ir->ir_set->erst_size); in xhci_remove_interrupter()
1824 xhci_write_64(xhci, ERST_EHB, &ir->ir_set->erst_dequeue); in xhci_remove_interrupter()
1829 xhci_free_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir) in xhci_free_interrupter() argument
1831 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_free_interrupter()
1837 erst_size = sizeof(struct xhci_erst_entry) * ir->erst.num_entries; in xhci_free_interrupter()
1838 if (ir->erst.entries) in xhci_free_interrupter()
1840 ir->erst.entries, in xhci_free_interrupter()
1841 ir->erst.erst_dma_addr); in xhci_free_interrupter()
1842 ir->erst.entries = NULL; in xhci_free_interrupter()
1845 if (ir->event_ring) in xhci_free_interrupter()
1846 xhci_ring_free(xhci, ir->event_ring); in xhci_free_interrupter()
1848 ir->event_ring = NULL; in xhci_free_interrupter()
1855 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_remove_secondary_interrupter() local
1858 spin_lock_irq(&xhci->lock); in xhci_remove_secondary_interrupter()
1861 if (!ir || !ir->intr_num || ir->intr_num >= xhci->max_interrupters) { in xhci_remove_secondary_interrupter()
1862 xhci_dbg(xhci, "Invalid secondary interrupter, can't remove\n"); in xhci_remove_secondary_interrupter()
1863 spin_unlock_irq(&xhci->lock); in xhci_remove_secondary_interrupter()
1867 intr_num = ir->intr_num; in xhci_remove_secondary_interrupter()
1869 xhci_remove_interrupter(xhci, ir); in xhci_remove_secondary_interrupter()
1870 xhci->interrupters[intr_num] = NULL; in xhci_remove_secondary_interrupter()
1872 spin_unlock_irq(&xhci->lock); in xhci_remove_secondary_interrupter()
1874 xhci_free_interrupter(xhci, ir); in xhci_remove_secondary_interrupter()
1878 void xhci_mem_cleanup(struct xhci_hcd *xhci) in xhci_mem_cleanup() argument
1880 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_mem_cleanup()
1883 cancel_delayed_work_sync(&xhci->cmd_timer); in xhci_mem_cleanup()
1885 for (i = 0; xhci->interrupters && i < xhci->max_interrupters; i++) { in xhci_mem_cleanup()
1886 if (xhci->interrupters[i]) { in xhci_mem_cleanup()
1887 xhci_remove_interrupter(xhci, xhci->interrupters[i]); in xhci_mem_cleanup()
1888 xhci_free_interrupter(xhci, xhci->interrupters[i]); in xhci_mem_cleanup()
1889 xhci->interrupters[i] = NULL; in xhci_mem_cleanup()
1892 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed interrupters"); in xhci_mem_cleanup()
1894 if (xhci->cmd_ring) in xhci_mem_cleanup()
1895 xhci_ring_free(xhci, xhci->cmd_ring); in xhci_mem_cleanup()
1896 xhci->cmd_ring = NULL; in xhci_mem_cleanup()
1897 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed command ring"); in xhci_mem_cleanup()
1898 xhci_cleanup_command_queue(xhci); in xhci_mem_cleanup()
1900 num_ports = HCS_MAX_PORTS(xhci->hcs_params1); in xhci_mem_cleanup()
1901 for (i = 0; i < num_ports && xhci->rh_bw; i++) { in xhci_mem_cleanup()
1902 struct xhci_interval_bw_table *bwt = &xhci->rh_bw[i].bw_table; in xhci_mem_cleanup()
1904 struct list_head *ep = &bwt->interval_bw[j].endpoints; in xhci_mem_cleanup()
1906 list_del_init(ep->next); in xhci_mem_cleanup()
1910 for (i = HCS_MAX_SLOTS(xhci->hcs_params1); i > 0; i--) in xhci_mem_cleanup()
1911 xhci_free_virt_devices_depth_first(xhci, i); in xhci_mem_cleanup()
1913 dma_pool_destroy(xhci->segment_pool); in xhci_mem_cleanup()
1914 xhci->segment_pool = NULL; in xhci_mem_cleanup()
1915 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed segment pool"); in xhci_mem_cleanup()
1917 dma_pool_destroy(xhci->device_pool); in xhci_mem_cleanup()
1918 xhci->device_pool = NULL; in xhci_mem_cleanup()
1919 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed device context pool"); in xhci_mem_cleanup()
1921 dma_pool_destroy(xhci->small_streams_pool); in xhci_mem_cleanup()
1922 xhci->small_streams_pool = NULL; in xhci_mem_cleanup()
1923 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_cleanup()
1926 dma_pool_destroy(xhci->medium_streams_pool); in xhci_mem_cleanup()
1927 xhci->medium_streams_pool = NULL; in xhci_mem_cleanup()
1928 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_cleanup()
1931 if (xhci->dcbaa) in xhci_mem_cleanup()
1932 dma_free_coherent(dev, sizeof(*xhci->dcbaa), in xhci_mem_cleanup()
1933 xhci->dcbaa, xhci->dcbaa->dma); in xhci_mem_cleanup()
1934 xhci->dcbaa = NULL; in xhci_mem_cleanup()
1936 scratchpad_free(xhci); in xhci_mem_cleanup()
1938 if (!xhci->rh_bw) in xhci_mem_cleanup()
1943 list_for_each_entry_safe(tt, n, &xhci->rh_bw[i].tts, tt_list) { in xhci_mem_cleanup()
1944 list_del(&tt->tt_list); in xhci_mem_cleanup()
1950 xhci->cmd_ring_reserved_trbs = 0; in xhci_mem_cleanup()
1951 xhci->usb2_rhub.num_ports = 0; in xhci_mem_cleanup()
1952 xhci->usb3_rhub.num_ports = 0; in xhci_mem_cleanup()
1953 xhci->num_active_eps = 0; in xhci_mem_cleanup()
1954 kfree(xhci->usb2_rhub.ports); in xhci_mem_cleanup()
1955 kfree(xhci->usb3_rhub.ports); in xhci_mem_cleanup()
1956 kfree(xhci->hw_ports); in xhci_mem_cleanup()
1957 kfree(xhci->rh_bw); in xhci_mem_cleanup()
1958 kfree(xhci->ext_caps); in xhci_mem_cleanup()
1959 for (i = 0; i < xhci->num_port_caps; i++) in xhci_mem_cleanup()
1960 kfree(xhci->port_caps[i].psi); in xhci_mem_cleanup()
1961 kfree(xhci->port_caps); in xhci_mem_cleanup()
1962 kfree(xhci->interrupters); in xhci_mem_cleanup()
1963 xhci->num_port_caps = 0; in xhci_mem_cleanup()
1965 xhci->usb2_rhub.ports = NULL; in xhci_mem_cleanup()
1966 xhci->usb3_rhub.ports = NULL; in xhci_mem_cleanup()
1967 xhci->hw_ports = NULL; in xhci_mem_cleanup()
1968 xhci->rh_bw = NULL; in xhci_mem_cleanup()
1969 xhci->ext_caps = NULL; in xhci_mem_cleanup()
1970 xhci->port_caps = NULL; in xhci_mem_cleanup()
1971 xhci->interrupters = NULL; in xhci_mem_cleanup()
1973 xhci->page_size = 0; in xhci_mem_cleanup()
1974 xhci->page_shift = 0; in xhci_mem_cleanup()
1975 xhci->usb2_rhub.bus_state.bus_suspended = 0; in xhci_mem_cleanup()
1976 xhci->usb3_rhub.bus_state.bus_suspended = 0; in xhci_mem_cleanup()
1979 static void xhci_set_hc_event_deq(struct xhci_hcd *xhci, struct xhci_interrupter *ir) in xhci_set_hc_event_deq() argument
1983 deq = xhci_trb_virt_to_dma(ir->event_ring->deq_seg, in xhci_set_hc_event_deq()
1984 ir->event_ring->dequeue); in xhci_set_hc_event_deq()
1986 xhci_warn(xhci, "WARN something wrong with SW event ring dequeue ptr.\n"); in xhci_set_hc_event_deq()
1991 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_set_hc_event_deq()
1993 xhci_write_64(xhci, ((u64) deq & (u64) ~ERST_PTR_MASK), in xhci_set_hc_event_deq()
1994 &ir->ir_set->erst_dequeue); in xhci_set_hc_event_deq()
1997 static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports, in xhci_add_in_port() argument
2004 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_add_in_port()
2012 rhub = &xhci->usb3_rhub; in xhci_add_in_port()
2014 * Some hosts incorrectly use sub-minor version for minor in xhci_add_in_port()
2023 * Some zhaoxin's xHCI controller that follow usb3.1 spec in xhci_add_in_port()
2026 if (xhci->quirks & XHCI_ZHAOXIN_HOST) { in xhci_add_in_port()
2032 rhub = &xhci->usb2_rhub; in xhci_add_in_port()
2034 xhci_warn(xhci, "Ignoring unknown port speed, Ext Cap %p, revision = 0x%x\n", in xhci_add_in_port()
2044 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_add_in_port()
2048 if (port_offset == 0 || (port_offset + port_count - 1) > num_ports) in xhci_add_in_port()
2052 port_cap = &xhci->port_caps[xhci->num_port_caps++]; in xhci_add_in_port()
2053 if (xhci->num_port_caps > max_caps) in xhci_add_in_port()
2056 port_cap->psi_count = XHCI_EXT_PORT_PSIC(temp); in xhci_add_in_port()
2058 if (port_cap->psi_count) { in xhci_add_in_port()
2059 port_cap->psi = kcalloc_node(port_cap->psi_count, in xhci_add_in_port()
2060 sizeof(*port_cap->psi), in xhci_add_in_port()
2062 if (!port_cap->psi) in xhci_add_in_port()
2063 port_cap->psi_count = 0; in xhci_add_in_port()
2065 port_cap->psi_uid_count++; in xhci_add_in_port()
2066 for (i = 0; i < port_cap->psi_count; i++) { in xhci_add_in_port()
2067 port_cap->psi[i] = readl(addr + 4 + i); in xhci_add_in_port()
2072 if (i && (XHCI_EXT_PORT_PSIV(port_cap->psi[i]) != in xhci_add_in_port()
2073 XHCI_EXT_PORT_PSIV(port_cap->psi[i - 1]))) in xhci_add_in_port()
2074 port_cap->psi_uid_count++; in xhci_add_in_port()
2076 if (xhci->quirks & XHCI_ZHAOXIN_HOST && in xhci_add_in_port()
2078 XHCI_EXT_PORT_PSIV(port_cap->psi[i]) >= 5) in xhci_add_in_port()
2081 xhci_dbg(xhci, "PSIV:%d PSIE:%d PLT:%d PFD:%d LP:%d PSIM:%d\n", in xhci_add_in_port()
2082 XHCI_EXT_PORT_PSIV(port_cap->psi[i]), in xhci_add_in_port()
2083 XHCI_EXT_PORT_PSIE(port_cap->psi[i]), in xhci_add_in_port()
2084 XHCI_EXT_PORT_PLT(port_cap->psi[i]), in xhci_add_in_port()
2085 XHCI_EXT_PORT_PFD(port_cap->psi[i]), in xhci_add_in_port()
2086 XHCI_EXT_PORT_LP(port_cap->psi[i]), in xhci_add_in_port()
2087 XHCI_EXT_PORT_PSIM(port_cap->psi[i])); in xhci_add_in_port()
2091 rhub->maj_rev = major_revision; in xhci_add_in_port()
2093 if (rhub->min_rev < minor_revision) in xhci_add_in_port()
2094 rhub->min_rev = minor_revision; in xhci_add_in_port()
2096 port_cap->maj_rev = major_revision; in xhci_add_in_port()
2097 port_cap->min_rev = minor_revision; in xhci_add_in_port()
2100 if (major_revision < 0x03 && xhci->num_ext_caps < max_caps) in xhci_add_in_port()
2101 xhci->ext_caps[xhci->num_ext_caps++] = temp; in xhci_add_in_port()
2103 if ((xhci->hci_version >= 0x100) && (major_revision != 0x03) && in xhci_add_in_port()
2105 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_add_in_port()
2106 "xHCI 1.0: support USB2 hardware lpm"); in xhci_add_in_port()
2107 xhci->hw_lpm_support = 1; in xhci_add_in_port()
2110 port_offset--; in xhci_add_in_port()
2112 struct xhci_port *hw_port = &xhci->hw_ports[i]; in xhci_add_in_port()
2114 if (hw_port->rhub) { in xhci_add_in_port()
2115 xhci_warn(xhci, "Duplicate port entry, Ext Cap %p, port %u\n", addr, i); in xhci_add_in_port()
2116 xhci_warn(xhci, "Port was marked as USB %u, duplicated as USB %u\n", in xhci_add_in_port()
2117 hw_port->rhub->maj_rev, major_revision); in xhci_add_in_port()
2121 if (hw_port->rhub != rhub && in xhci_add_in_port()
2122 hw_port->hcd_portnum != DUPLICATE_ENTRY) { in xhci_add_in_port()
2123 hw_port->rhub->num_ports--; in xhci_add_in_port()
2124 hw_port->hcd_portnum = DUPLICATE_ENTRY; in xhci_add_in_port()
2128 hw_port->rhub = rhub; in xhci_add_in_port()
2129 hw_port->port_cap = port_cap; in xhci_add_in_port()
2130 rhub->num_ports++; in xhci_add_in_port()
2135 static void xhci_create_rhub_port_array(struct xhci_hcd *xhci, in xhci_create_rhub_port_array() argument
2140 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_create_rhub_port_array()
2142 if (!rhub->num_ports) in xhci_create_rhub_port_array()
2144 rhub->ports = kcalloc_node(rhub->num_ports, sizeof(*rhub->ports), in xhci_create_rhub_port_array()
2146 if (!rhub->ports) in xhci_create_rhub_port_array()
2149 for (i = 0; i < HCS_MAX_PORTS(xhci->hcs_params1); i++) { in xhci_create_rhub_port_array()
2150 if (xhci->hw_ports[i].rhub != rhub || in xhci_create_rhub_port_array()
2151 xhci->hw_ports[i].hcd_portnum == DUPLICATE_ENTRY) in xhci_create_rhub_port_array()
2153 xhci->hw_ports[i].hcd_portnum = port_index; in xhci_create_rhub_port_array()
2154 rhub->ports[port_index] = &xhci->hw_ports[i]; in xhci_create_rhub_port_array()
2156 if (port_index == rhub->num_ports) in xhci_create_rhub_port_array()
2168 static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) in xhci_setup_port_arrays() argument
2176 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_setup_port_arrays()
2178 num_ports = HCS_MAX_PORTS(xhci->hcs_params1); in xhci_setup_port_arrays()
2179 xhci->hw_ports = kcalloc_node(num_ports, sizeof(*xhci->hw_ports), in xhci_setup_port_arrays()
2181 if (!xhci->hw_ports) in xhci_setup_port_arrays()
2182 return -ENOMEM; in xhci_setup_port_arrays()
2185 xhci->hw_ports[i].addr = &xhci->op_regs->port_status_base + in xhci_setup_port_arrays()
2187 xhci->hw_ports[i].hw_portnum = i; in xhci_setup_port_arrays()
2189 init_completion(&xhci->hw_ports[i].rexit_done); in xhci_setup_port_arrays()
2190 init_completion(&xhci->hw_ports[i].u3exit_done); in xhci_setup_port_arrays()
2193 xhci->rh_bw = kcalloc_node(num_ports, sizeof(*xhci->rh_bw), flags, in xhci_setup_port_arrays()
2195 if (!xhci->rh_bw) in xhci_setup_port_arrays()
2196 return -ENOMEM; in xhci_setup_port_arrays()
2200 INIT_LIST_HEAD(&xhci->rh_bw[i].tts); in xhci_setup_port_arrays()
2201 bw_table = &xhci->rh_bw[i].bw_table; in xhci_setup_port_arrays()
2203 INIT_LIST_HEAD(&bw_table->interval_bw[j].endpoints); in xhci_setup_port_arrays()
2205 base = &xhci->cap_regs->hc_capbase; in xhci_setup_port_arrays()
2209 xhci_err(xhci, "No Extended Capability registers, unable to set up roothub\n"); in xhci_setup_port_arrays()
2210 return -ENODEV; in xhci_setup_port_arrays()
2221 xhci->ext_caps = kcalloc_node(cap_count, sizeof(*xhci->ext_caps), in xhci_setup_port_arrays()
2223 if (!xhci->ext_caps) in xhci_setup_port_arrays()
2224 return -ENOMEM; in xhci_setup_port_arrays()
2226 xhci->port_caps = kcalloc_node(cap_count, sizeof(*xhci->port_caps), in xhci_setup_port_arrays()
2228 if (!xhci->port_caps) in xhci_setup_port_arrays()
2229 return -ENOMEM; in xhci_setup_port_arrays()
2234 xhci_add_in_port(xhci, num_ports, base + offset, cap_count); in xhci_setup_port_arrays()
2235 if (xhci->usb2_rhub.num_ports + xhci->usb3_rhub.num_ports == in xhci_setup_port_arrays()
2241 if (xhci->usb2_rhub.num_ports == 0 && xhci->usb3_rhub.num_ports == 0) { in xhci_setup_port_arrays()
2242 xhci_warn(xhci, "No ports on the roothubs?\n"); in xhci_setup_port_arrays()
2243 return -ENODEV; in xhci_setup_port_arrays()
2245 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_setup_port_arrays()
2247 xhci->usb2_rhub.num_ports, xhci->usb3_rhub.num_ports); in xhci_setup_port_arrays()
2252 if (xhci->usb3_rhub.num_ports > USB_SS_MAXPORTS) { in xhci_setup_port_arrays()
2253 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_setup_port_arrays()
2256 xhci->usb3_rhub.num_ports = USB_SS_MAXPORTS; in xhci_setup_port_arrays()
2258 if (xhci->usb2_rhub.num_ports > USB_MAXCHILDREN) { in xhci_setup_port_arrays()
2259 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_setup_port_arrays()
2262 xhci->usb2_rhub.num_ports = USB_MAXCHILDREN; in xhci_setup_port_arrays()
2265 if (!xhci->usb2_rhub.num_ports) in xhci_setup_port_arrays()
2266 xhci_info(xhci, "USB2 root hub has no ports\n"); in xhci_setup_port_arrays()
2268 if (!xhci->usb3_rhub.num_ports) in xhci_setup_port_arrays()
2269 xhci_info(xhci, "USB3 root hub has no ports\n"); in xhci_setup_port_arrays()
2271 xhci_create_rhub_port_array(xhci, &xhci->usb2_rhub, flags); in xhci_setup_port_arrays()
2272 xhci_create_rhub_port_array(xhci, &xhci->usb3_rhub, flags); in xhci_setup_port_arrays()
2278 xhci_alloc_interrupter(struct xhci_hcd *xhci, unsigned int segs, gfp_t flags) in xhci_alloc_interrupter() argument
2280 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_interrupter()
2288 max_segs = BIT(HCS_ERST_MAX(xhci->hcs_params2)); in xhci_alloc_interrupter()
2295 ir->event_ring = xhci_ring_alloc(xhci, segs, 1, TYPE_EVENT, 0, flags); in xhci_alloc_interrupter()
2296 if (!ir->event_ring) { in xhci_alloc_interrupter()
2297 xhci_warn(xhci, "Failed to allocate interrupter event ring\n"); in xhci_alloc_interrupter()
2302 ret = xhci_alloc_erst(xhci, ir->event_ring, &ir->erst, flags); in xhci_alloc_interrupter()
2304 xhci_warn(xhci, "Failed to allocate interrupter erst\n"); in xhci_alloc_interrupter()
2305 xhci_ring_free(xhci, ir->event_ring); in xhci_alloc_interrupter()
2314 xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir, in xhci_add_interrupter() argument
2320 if (intr_num > xhci->max_interrupters) { in xhci_add_interrupter()
2321 xhci_warn(xhci, "Can't add interrupter %d, max interrupters %d\n", in xhci_add_interrupter()
2322 intr_num, xhci->max_interrupters); in xhci_add_interrupter()
2323 return -EINVAL; in xhci_add_interrupter()
2326 if (xhci->interrupters[intr_num]) { in xhci_add_interrupter()
2327 xhci_warn(xhci, "Interrupter %d\n already set up", intr_num); in xhci_add_interrupter()
2328 return -EINVAL; in xhci_add_interrupter()
2331 xhci->interrupters[intr_num] = ir; in xhci_add_interrupter()
2332 ir->intr_num = intr_num; in xhci_add_interrupter()
2333 ir->ir_set = &xhci->run_regs->ir_set[intr_num]; in xhci_add_interrupter()
2336 erst_size = readl(&ir->ir_set->erst_size); in xhci_add_interrupter()
2338 erst_size |= ir->event_ring->num_segs; in xhci_add_interrupter()
2339 writel(erst_size, &ir->ir_set->erst_size); in xhci_add_interrupter()
2341 erst_base = xhci_read_64(xhci, &ir->ir_set->erst_base); in xhci_add_interrupter()
2343 erst_base |= ir->erst.erst_dma_addr & ~ERST_BASE_RSVDP; in xhci_add_interrupter()
2344 if (xhci->quirks & XHCI_WRITE_64_HI_LO) in xhci_add_interrupter()
2345 hi_lo_writeq(erst_base, &ir->ir_set->erst_base); in xhci_add_interrupter()
2347 xhci_write_64(xhci, erst_base, &ir->ir_set->erst_base); in xhci_add_interrupter()
2350 xhci_set_hc_event_deq(xhci, ir); in xhci_add_interrupter()
2359 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_create_secondary_interrupter() local
2362 int err = -ENOSPC; in xhci_create_secondary_interrupter()
2364 if (!xhci->interrupters || xhci->max_interrupters <= 1) in xhci_create_secondary_interrupter()
2367 ir = xhci_alloc_interrupter(xhci, segs, GFP_KERNEL); in xhci_create_secondary_interrupter()
2371 spin_lock_irq(&xhci->lock); in xhci_create_secondary_interrupter()
2374 for (i = 1; i < xhci->max_interrupters; i++) { in xhci_create_secondary_interrupter()
2375 if (xhci->interrupters[i] == NULL) { in xhci_create_secondary_interrupter()
2376 err = xhci_add_interrupter(xhci, ir, i); in xhci_create_secondary_interrupter()
2381 spin_unlock_irq(&xhci->lock); in xhci_create_secondary_interrupter()
2384 xhci_warn(xhci, "Failed to add secondary interrupter, max interrupters %d\n", in xhci_create_secondary_interrupter()
2385 xhci->max_interrupters); in xhci_create_secondary_interrupter()
2386 xhci_free_interrupter(xhci, ir); in xhci_create_secondary_interrupter()
2392 xhci_warn(xhci, "Failed to set interrupter %d moderation to %uns\n", in xhci_create_secondary_interrupter()
2395 xhci_dbg(xhci, "Add secondary interrupter %d, max interrupters %d\n", in xhci_create_secondary_interrupter()
2396 i, xhci->max_interrupters); in xhci_create_secondary_interrupter()
2402 int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) in xhci_mem_init() argument
2405 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_mem_init()
2412 INIT_LIST_HEAD(&xhci->cmd_list); in xhci_mem_init()
2415 INIT_DELAYED_WORK(&xhci->cmd_timer, xhci_handle_command_timeout); in xhci_mem_init()
2416 init_completion(&xhci->cmd_ring_stop_completion); in xhci_mem_init()
2418 page_size = readl(&xhci->op_regs->page_size); in xhci_mem_init()
2419 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2421 val = ffs(page_size) - 1; in xhci_mem_init()
2423 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2426 xhci_warn(xhci, "WARN: no supported page size\n"); in xhci_mem_init()
2428 xhci->page_shift = 12; in xhci_mem_init()
2429 xhci->page_size = 1 << xhci->page_shift; in xhci_mem_init()
2430 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2431 "HCD page size set to %iK", xhci->page_size / 1024); in xhci_mem_init()
2437 val = HCS_MAX_SLOTS(readl(&xhci->cap_regs->hcs_params1)); in xhci_mem_init()
2438 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2440 val2 = readl(&xhci->op_regs->config_reg); in xhci_mem_init()
2442 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2444 writel(val, &xhci->op_regs->config_reg); in xhci_mem_init()
2447 * xHCI section 5.4.6 - Device Context array must be in xhci_mem_init()
2448 * "physically contiguous and 64-byte (cache line) aligned". in xhci_mem_init()
2450 xhci->dcbaa = dma_alloc_coherent(dev, sizeof(*xhci->dcbaa), &dma, in xhci_mem_init()
2452 if (!xhci->dcbaa) in xhci_mem_init()
2454 xhci->dcbaa->dma = dma; in xhci_mem_init()
2455 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2457 &xhci->dcbaa->dma, xhci->dcbaa); in xhci_mem_init()
2458 xhci_write_64(xhci, dma, &xhci->op_regs->dcbaa_ptr); in xhci_mem_init()
2463 * however, the command ring segment needs 64-byte aligned segments in xhci_mem_init()
2467 if (xhci->quirks & XHCI_TRB_OVERFETCH) in xhci_mem_init()
2468 /* Buggy HC prefetches beyond segment bounds - allocate dummy space at the end */ in xhci_mem_init()
2469 xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, in xhci_mem_init()
2470 TRB_SEGMENT_SIZE * 2, TRB_SEGMENT_SIZE * 2, xhci->page_size * 2); in xhci_mem_init()
2472 xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, in xhci_mem_init()
2473 TRB_SEGMENT_SIZE, TRB_SEGMENT_SIZE, xhci->page_size); in xhci_mem_init()
2476 xhci->device_pool = dma_pool_create("xHCI input/output contexts", dev, in xhci_mem_init()
2477 2112, 64, xhci->page_size); in xhci_mem_init()
2478 if (!xhci->segment_pool || !xhci->device_pool) in xhci_mem_init()
2482 * and only need to be 16-byte aligned. in xhci_mem_init()
2484 xhci->small_streams_pool = in xhci_mem_init()
2485 dma_pool_create("xHCI 256 byte stream ctx arrays", in xhci_mem_init()
2487 xhci->medium_streams_pool = in xhci_mem_init()
2488 dma_pool_create("xHCI 1KB stream ctx arrays", in xhci_mem_init()
2494 if (!xhci->small_streams_pool || !xhci->medium_streams_pool) in xhci_mem_init()
2498 xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, 0, flags); in xhci_mem_init()
2499 if (!xhci->cmd_ring) in xhci_mem_init()
2501 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2502 "Allocated command ring at %p", xhci->cmd_ring); in xhci_mem_init()
2503 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "First segment DMA is 0x%pad", in xhci_mem_init()
2504 &xhci->cmd_ring->first_seg->dma); in xhci_mem_init()
2507 val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); in xhci_mem_init()
2509 (xhci->cmd_ring->first_seg->dma & (u64) ~CMD_RING_RSVD_BITS) | in xhci_mem_init()
2510 xhci->cmd_ring->cycle_state; in xhci_mem_init()
2511 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2513 xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring); in xhci_mem_init()
2519 xhci->cmd_ring_reserved_trbs++; in xhci_mem_init()
2521 val = readl(&xhci->cap_regs->db_off); in xhci_mem_init()
2523 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2526 xhci->dba = (void __iomem *) xhci->cap_regs + val; in xhci_mem_init()
2529 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2531 xhci->interrupters = kcalloc_node(xhci->max_interrupters, sizeof(*xhci->interrupters), in xhci_mem_init()
2534 ir = xhci_alloc_interrupter(xhci, 0, flags); in xhci_mem_init()
2538 if (xhci_add_interrupter(xhci, ir, 0)) in xhci_mem_init()
2541 xhci->isoc_bei_interval = AVOID_BEI_INTERVAL_MAX; in xhci_mem_init()
2549 xhci->devs[i] = NULL; in xhci_mem_init()
2551 if (scratchpad_alloc(xhci, flags)) in xhci_mem_init()
2553 if (xhci_setup_port_arrays(xhci, flags)) in xhci_mem_init()
2560 temp = readl(&xhci->op_regs->dev_notification); in xhci_mem_init()
2563 writel(temp, &xhci->op_regs->dev_notification); in xhci_mem_init()
2568 xhci_halt(xhci); in xhci_mem_init()
2569 xhci_reset(xhci, XHCI_RESET_SHORT_USEC); in xhci_mem_init()
2570 xhci_mem_cleanup(xhci); in xhci_mem_init()
2571 return -ENOMEM; in xhci_mem_init()