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->enq_seg == ring->last_seg) { in xhci_link_rings()
150 if (ring->type != TYPE_EVENT) { in xhci_link_rings()
151 ring->last_seg->trbs[TRBS_PER_SEGMENT-1].link.control in xhci_link_rings()
153 last->trbs[TRBS_PER_SEGMENT-1].link.control in xhci_link_rings()
156 ring->last_seg = last; in xhci_link_rings()
159 for (seg = last; seg != ring->last_seg; seg = seg->next) in xhci_link_rings()
160 seg->next->num = seg->num + 1; in xhci_link_rings()
186 * The radix tree uses an unsigned long as a key pair. On 32-bit systems, an
187 * unsigned long will be 32-bits; on a 64-bit system an unsigned long will be
188 * 64-bits. Since we only request 32-bit DMA addresses, we can use that as the
189 * key on 32-bit or 64-bit systems (it would also be fine if we asked for 64-bit
190 * PCI DMA addresses on a 64-bit system). There might be a problem on 32-bit
191 * extended systems (where the DMA address can be bigger than 32-bits),
192 * if we allow the PCI dma mask to be bigger than 32-bits. So don't do that.
202 key = (unsigned long)(seg->dma >> TRB_SEGMENT_SHIFT); in xhci_insert_segment_mapping()
221 key = (unsigned long)(seg->dma >> TRB_SEGMENT_SHIFT); in xhci_remove_segment_mapping()
248 seg = seg->next; in xhci_update_stream_segment_mapping()
260 seg = seg->next; in xhci_update_stream_segment_mapping()
270 if (WARN_ON_ONCE(ring->trb_address_map == NULL)) in xhci_remove_stream_mapping()
273 seg = ring->first_seg; in xhci_remove_stream_mapping()
275 xhci_remove_segment_mapping(ring->trb_address_map, seg); in xhci_remove_stream_mapping()
276 seg = seg->next; in xhci_remove_stream_mapping()
277 } while (seg != ring->first_seg); in xhci_remove_stream_mapping()
282 return xhci_update_stream_segment_mapping(ring->trb_address_map, ring, in xhci_update_stream_mapping()
283 ring->first_seg, ring->last_seg, mem_flags); in xhci_update_stream_mapping()
287 void xhci_ring_free(struct xhci_hcd *xhci, struct xhci_ring *ring) in xhci_ring_free() argument
294 if (ring->first_seg) { in xhci_ring_free()
295 if (ring->type == TYPE_STREAM) in xhci_ring_free()
297 xhci_free_segments_for_ring(xhci, ring->first_seg); in xhci_ring_free()
307 ring->enqueue = ring->first_seg->trbs; in xhci_initialize_ring_info()
308 ring->enq_seg = ring->first_seg; in xhci_initialize_ring_info()
309 ring->dequeue = ring->enqueue; in xhci_initialize_ring_info()
310 ring->deq_seg = ring->first_seg; in xhci_initialize_ring_info()
318 ring->cycle_state = cycle_state; in xhci_initialize_ring_info()
324 ring->num_trbs_free = ring->num_segs * (TRBS_PER_SEGMENT - 1) - 1; in xhci_initialize_ring_info()
329 static int xhci_alloc_segments_for_ring(struct xhci_hcd *xhci, in xhci_alloc_segments_for_ring() argument
339 chain_links = !!(xhci_link_trb_quirk(xhci) || in xhci_alloc_segments_for_ring()
341 (xhci->quirks & XHCI_AMD_0x96_HOST))); in xhci_alloc_segments_for_ring()
343 prev = xhci_segment_alloc(xhci, cycle_state, max_packet, num, flags); in xhci_alloc_segments_for_ring()
345 return -ENOMEM; in xhci_alloc_segments_for_ring()
352 next = xhci_segment_alloc(xhci, cycle_state, max_packet, num, in xhci_alloc_segments_for_ring()
357 next = prev->next; in xhci_alloc_segments_for_ring()
358 xhci_segment_free(xhci, prev); in xhci_alloc_segments_for_ring()
361 return -ENOMEM; in xhci_alloc_segments_for_ring()
381 struct xhci_ring *xhci_ring_alloc(struct xhci_hcd *xhci, in xhci_ring_alloc() argument
387 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_ring_alloc()
393 ring->num_segs = num_segs; in xhci_ring_alloc()
394 ring->bounce_buf_len = max_packet; in xhci_ring_alloc()
395 INIT_LIST_HEAD(&ring->td_list); in xhci_ring_alloc()
396 ring->type = type; in xhci_ring_alloc()
400 ret = xhci_alloc_segments_for_ring(xhci, &ring->first_seg, in xhci_ring_alloc()
401 &ring->last_seg, num_segs, 0, cycle_state, type, in xhci_ring_alloc()
409 ring->last_seg->trbs[TRBS_PER_SEGMENT - 1].link.control |= in xhci_ring_alloc()
421 void xhci_free_endpoint_ring(struct xhci_hcd *xhci, in xhci_free_endpoint_ring() argument
425 xhci_ring_free(xhci, virt_dev->eps[ep_index].ring); in xhci_free_endpoint_ring()
426 virt_dev->eps[ep_index].ring = NULL; in xhci_free_endpoint_ring()
433 int xhci_ring_expansion(struct xhci_hcd *xhci, struct xhci_ring *ring, in xhci_ring_expansion() argument
440 ret = xhci_alloc_segments_for_ring(xhci, &first, &last, in xhci_ring_expansion()
441 num_new_segs, ring->enq_seg->num + 1, in xhci_ring_expansion()
442 ring->cycle_state, ring->type, in xhci_ring_expansion()
443 ring->bounce_buf_len, flags); in xhci_ring_expansion()
445 return -ENOMEM; in xhci_ring_expansion()
447 if (ring->type == TYPE_STREAM) in xhci_ring_expansion()
448 ret = xhci_update_stream_segment_mapping(ring->trb_address_map, in xhci_ring_expansion()
453 next = first->next; in xhci_ring_expansion()
454 xhci_segment_free(xhci, first); in xhci_ring_expansion()
462 xhci_link_rings(xhci, ring, first, last, num_new_segs); in xhci_ring_expansion()
464 xhci_dbg_trace(xhci, trace_xhci_dbg_ring_expansion, in xhci_ring_expansion()
466 ring->num_segs); in xhci_ring_expansion()
471 struct xhci_container_ctx *xhci_alloc_container_ctx(struct xhci_hcd *xhci, in xhci_alloc_container_ctx() argument
475 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_container_ctx()
484 ctx->type = type; in xhci_alloc_container_ctx()
485 ctx->size = HCC_64BYTE_CONTEXT(xhci->hcc_params) ? 2048 : 1024; in xhci_alloc_container_ctx()
487 ctx->size += CTX_SIZE(xhci->hcc_params); in xhci_alloc_container_ctx()
489 ctx->bytes = dma_pool_zalloc(xhci->device_pool, flags, &ctx->dma); in xhci_alloc_container_ctx()
490 if (!ctx->bytes) { in xhci_alloc_container_ctx()
497 void xhci_free_container_ctx(struct xhci_hcd *xhci, in xhci_free_container_ctx() argument
502 dma_pool_free(xhci->device_pool, ctx->bytes, ctx->dma); in xhci_free_container_ctx()
509 if (ctx->type != XHCI_CTX_TYPE_INPUT) in xhci_get_input_control_ctx()
512 return (struct xhci_input_control_ctx *)ctx->bytes; in xhci_get_input_control_ctx()
515 struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, in xhci_get_slot_ctx() argument
518 if (ctx->type == XHCI_CTX_TYPE_DEVICE) in xhci_get_slot_ctx()
519 return (struct xhci_slot_ctx *)ctx->bytes; in xhci_get_slot_ctx()
522 (ctx->bytes + CTX_SIZE(xhci->hcc_params)); in xhci_get_slot_ctx()
525 struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, in xhci_get_ep_ctx() argument
531 if (ctx->type == XHCI_CTX_TYPE_INPUT) in xhci_get_ep_ctx()
535 (ctx->bytes + (ep_index * CTX_SIZE(xhci->hcc_params))); in xhci_get_ep_ctx()
541 static void xhci_free_stream_ctx(struct xhci_hcd *xhci, in xhci_free_stream_ctx() argument
545 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_free_stream_ctx()
551 dma_pool_free(xhci->medium_streams_pool, stream_ctx, dma); in xhci_free_stream_ctx()
553 dma_pool_free(xhci->small_streams_pool, stream_ctx, dma); in xhci_free_stream_ctx()
559 * - how many streams the endpoint supports,
560 * - the maximum primary stream array size the host controller supports,
561 * - and how many streams the device driver asks for.
566 static struct xhci_stream_ctx *xhci_alloc_stream_ctx(struct xhci_hcd *xhci, in xhci_alloc_stream_ctx() argument
570 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_stream_ctx()
576 return dma_pool_zalloc(xhci->medium_streams_pool, mem_flags, dma); in xhci_alloc_stream_ctx()
578 return dma_pool_zalloc(xhci->small_streams_pool, mem_flags, dma); in xhci_alloc_stream_ctx()
585 if (ep->ep_state & EP_HAS_STREAMS) in xhci_dma_to_transfer_ring()
586 return radix_tree_lookup(&ep->stream_info->trb_address_map, in xhci_dma_to_transfer_ring()
588 return ep->ring; in xhci_dma_to_transfer_ring()
600 struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, in xhci_alloc_stream_info() argument
610 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_stream_info()
612 xhci_dbg(xhci, "Allocating %u streams and %u stream context array entries.\n", in xhci_alloc_stream_info()
614 if (xhci->cmd_ring_reserved_trbs == MAX_RSVD_CMD_TRBS) { in xhci_alloc_stream_info()
615 xhci_dbg(xhci, "Command ring has no reserved TRBs available\n"); in xhci_alloc_stream_info()
618 xhci->cmd_ring_reserved_trbs++; in xhci_alloc_stream_info()
625 stream_info->num_streams = num_streams; in xhci_alloc_stream_info()
626 stream_info->num_stream_ctxs = num_stream_ctxs; in xhci_alloc_stream_info()
629 stream_info->stream_rings = kcalloc_node( in xhci_alloc_stream_info()
632 if (!stream_info->stream_rings) in xhci_alloc_stream_info()
636 stream_info->stream_ctx_array = xhci_alloc_stream_ctx(xhci, in xhci_alloc_stream_info()
637 num_stream_ctxs, &stream_info->ctx_array_dma, in xhci_alloc_stream_info()
639 if (!stream_info->stream_ctx_array) in xhci_alloc_stream_info()
643 stream_info->free_streams_command = in xhci_alloc_stream_info()
644 xhci_alloc_command_with_ctx(xhci, true, mem_flags); in xhci_alloc_stream_info()
645 if (!stream_info->free_streams_command) in xhci_alloc_stream_info()
648 INIT_RADIX_TREE(&stream_info->trb_address_map, GFP_ATOMIC); in xhci_alloc_stream_info()
656 stream_info->stream_rings[cur_stream] = in xhci_alloc_stream_info()
657 xhci_ring_alloc(xhci, 2, 1, TYPE_STREAM, max_packet, in xhci_alloc_stream_info()
659 cur_ring = stream_info->stream_rings[cur_stream]; in xhci_alloc_stream_info()
662 cur_ring->stream_id = cur_stream; in xhci_alloc_stream_info()
663 cur_ring->trb_address_map = &stream_info->trb_address_map; in xhci_alloc_stream_info()
665 addr = cur_ring->first_seg->dma | in xhci_alloc_stream_info()
667 cur_ring->cycle_state; in xhci_alloc_stream_info()
668 stream_info->stream_ctx_array[cur_stream].stream_ring = in xhci_alloc_stream_info()
670 xhci_dbg(xhci, "Setting stream %d ring ptr to 0x%08llx\n", cur_stream, addr); in xhci_alloc_stream_info()
674 xhci_ring_free(xhci, cur_ring); in xhci_alloc_stream_info()
675 stream_info->stream_rings[cur_stream] = NULL; in xhci_alloc_stream_info()
690 cur_ring = stream_info->stream_rings[cur_stream]; in xhci_alloc_stream_info()
692 xhci_ring_free(xhci, cur_ring); in xhci_alloc_stream_info()
693 stream_info->stream_rings[cur_stream] = NULL; in xhci_alloc_stream_info()
696 xhci_free_command(xhci, stream_info->free_streams_command); in xhci_alloc_stream_info()
698 xhci_free_stream_ctx(xhci, in xhci_alloc_stream_info()
699 stream_info->num_stream_ctxs, in xhci_alloc_stream_info()
700 stream_info->stream_ctx_array, in xhci_alloc_stream_info()
701 stream_info->ctx_array_dma); in xhci_alloc_stream_info()
703 kfree(stream_info->stream_rings); in xhci_alloc_stream_info()
707 xhci->cmd_ring_reserved_trbs--; in xhci_alloc_stream_info()
714 void xhci_setup_streams_ep_input_ctx(struct xhci_hcd *xhci, in xhci_setup_streams_ep_input_ctx() argument
723 max_primary_streams = fls(stream_info->num_stream_ctxs) - 2; in xhci_setup_streams_ep_input_ctx()
724 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_setup_streams_ep_input_ctx()
727 ep_ctx->ep_info &= cpu_to_le32(~EP_MAXPSTREAMS_MASK); in xhci_setup_streams_ep_input_ctx()
728 ep_ctx->ep_info |= cpu_to_le32(EP_MAXPSTREAMS(max_primary_streams) in xhci_setup_streams_ep_input_ctx()
730 ep_ctx->deq = cpu_to_le64(stream_info->ctx_array_dma); in xhci_setup_streams_ep_input_ctx()
742 ep_ctx->ep_info &= cpu_to_le32(~(EP_MAXPSTREAMS_MASK | EP_HAS_LSA)); in xhci_setup_no_streams_ep_input_ctx()
743 addr = xhci_trb_virt_to_dma(ep->ring->deq_seg, ep->ring->dequeue); in xhci_setup_no_streams_ep_input_ctx()
744 ep_ctx->deq = cpu_to_le64(addr | ep->ring->cycle_state); in xhci_setup_no_streams_ep_input_ctx()
751 void xhci_free_stream_info(struct xhci_hcd *xhci, in xhci_free_stream_info() argument
760 for (cur_stream = 1; cur_stream < stream_info->num_streams; in xhci_free_stream_info()
762 cur_ring = stream_info->stream_rings[cur_stream]; in xhci_free_stream_info()
764 xhci_ring_free(xhci, cur_ring); in xhci_free_stream_info()
765 stream_info->stream_rings[cur_stream] = NULL; in xhci_free_stream_info()
768 xhci_free_command(xhci, stream_info->free_streams_command); in xhci_free_stream_info()
769 xhci->cmd_ring_reserved_trbs--; in xhci_free_stream_info()
770 if (stream_info->stream_ctx_array) in xhci_free_stream_info()
771 xhci_free_stream_ctx(xhci, in xhci_free_stream_info()
772 stream_info->num_stream_ctxs, in xhci_free_stream_info()
773 stream_info->stream_ctx_array, in xhci_free_stream_info()
774 stream_info->ctx_array_dma); in xhci_free_stream_info()
776 kfree(stream_info->stream_rings); in xhci_free_stream_info()
783 static void xhci_free_tt_info(struct xhci_hcd *xhci, in xhci_free_tt_info() argument
794 if (virt_dev->real_port == 0 || in xhci_free_tt_info()
795 virt_dev->real_port > HCS_MAX_PORTS(xhci->hcs_params1)) { in xhci_free_tt_info()
796 xhci_dbg(xhci, "Bad real port.\n"); in xhci_free_tt_info()
800 tt_list_head = &(xhci->rh_bw[virt_dev->real_port - 1].tts); in xhci_free_tt_info()
802 /* Multi-TT hubs will have more than one entry */ in xhci_free_tt_info()
803 if (tt_info->slot_id == slot_id) { in xhci_free_tt_info()
805 list_del(&tt_info->tt_list); in xhci_free_tt_info()
813 int xhci_alloc_tt_info(struct xhci_hcd *xhci, in xhci_alloc_tt_info() argument
821 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_tt_info()
823 if (!tt->multi) in xhci_alloc_tt_info()
826 num_ports = hdev->maxchild; in xhci_alloc_tt_info()
835 INIT_LIST_HEAD(&tt_info->tt_list); in xhci_alloc_tt_info()
836 list_add(&tt_info->tt_list, in xhci_alloc_tt_info()
837 &xhci->rh_bw[virt_dev->real_port - 1].tts); in xhci_alloc_tt_info()
838 tt_info->slot_id = virt_dev->udev->slot_id; in xhci_alloc_tt_info()
839 if (tt->multi) in xhci_alloc_tt_info()
840 tt_info->ttport = i+1; in xhci_alloc_tt_info()
841 bw_table = &tt_info->bw_table; in xhci_alloc_tt_info()
843 INIT_LIST_HEAD(&bw_table->interval_bw[j].endpoints); in xhci_alloc_tt_info()
848 xhci_free_tt_info(xhci, virt_dev, virt_dev->udev->slot_id); in xhci_alloc_tt_info()
849 return -ENOMEM; in xhci_alloc_tt_info()
854 * Should be called with xhci->lock held if there is any chance the TT lists
858 void xhci_free_virt_device(struct xhci_hcd *xhci, int slot_id) in xhci_free_virt_device() argument
865 if (slot_id == 0 || !xhci->devs[slot_id]) in xhci_free_virt_device()
868 dev = xhci->devs[slot_id]; in xhci_free_virt_device()
870 xhci->dcbaa->dev_context_ptrs[slot_id] = 0; in xhci_free_virt_device()
876 if (dev->tt_info) in xhci_free_virt_device()
877 old_active_eps = dev->tt_info->active_eps; in xhci_free_virt_device()
880 if (dev->eps[i].ring) in xhci_free_virt_device()
881 xhci_ring_free(xhci, dev->eps[i].ring); in xhci_free_virt_device()
882 if (dev->eps[i].stream_info) in xhci_free_virt_device()
883 xhci_free_stream_info(xhci, in xhci_free_virt_device()
884 dev->eps[i].stream_info); in xhci_free_virt_device()
893 if (!list_empty(&dev->eps[i].bw_endpoint_list)) { in xhci_free_virt_device()
894 list_del_init(&dev->eps[i].bw_endpoint_list); in xhci_free_virt_device()
895 xhci_dbg(xhci, "Slot %u endpoint %u not removed from BW list!\n", in xhci_free_virt_device()
900 xhci_free_tt_info(xhci, dev, slot_id); in xhci_free_virt_device()
902 xhci_update_tt_active_eps(xhci, dev, old_active_eps); in xhci_free_virt_device()
904 if (dev->in_ctx) in xhci_free_virt_device()
905 xhci_free_container_ctx(xhci, dev->in_ctx); in xhci_free_virt_device()
906 if (dev->out_ctx) in xhci_free_virt_device()
907 xhci_free_container_ctx(xhci, dev->out_ctx); in xhci_free_virt_device()
909 if (dev->udev && dev->udev->slot_id) in xhci_free_virt_device()
910 dev->udev->slot_id = 0; in xhci_free_virt_device()
911 kfree(xhci->devs[slot_id]); in xhci_free_virt_device()
912 xhci->devs[slot_id] = NULL; in xhci_free_virt_device()
919 * We can't rely on udev at this point to find child-parent relationships.
921 static void xhci_free_virt_devices_depth_first(struct xhci_hcd *xhci, int slot_id) in xhci_free_virt_devices_depth_first() argument
928 vdev = xhci->devs[slot_id]; in xhci_free_virt_devices_depth_first()
932 if (vdev->real_port == 0 || in xhci_free_virt_devices_depth_first()
933 vdev->real_port > HCS_MAX_PORTS(xhci->hcs_params1)) { in xhci_free_virt_devices_depth_first()
934 xhci_dbg(xhci, "Bad vdev->real_port.\n"); in xhci_free_virt_devices_depth_first()
938 tt_list_head = &(xhci->rh_bw[vdev->real_port - 1].tts); in xhci_free_virt_devices_depth_first()
941 if (tt_info->slot_id == slot_id) { in xhci_free_virt_devices_depth_first()
943 for (i = 1; i < HCS_MAX_SLOTS(xhci->hcs_params1); i++) { in xhci_free_virt_devices_depth_first()
944 vdev = xhci->devs[i]; in xhci_free_virt_devices_depth_first()
945 if (vdev && (vdev->tt_info == tt_info)) in xhci_free_virt_devices_depth_first()
947 xhci, i); in xhci_free_virt_devices_depth_first()
953 xhci_debugfs_remove_slot(xhci, slot_id); in xhci_free_virt_devices_depth_first()
954 xhci_free_virt_device(xhci, slot_id); in xhci_free_virt_devices_depth_first()
957 int xhci_alloc_virt_device(struct xhci_hcd *xhci, int slot_id, in xhci_alloc_virt_device() argument
964 if (slot_id == 0 || xhci->devs[slot_id]) { in xhci_alloc_virt_device()
965 xhci_warn(xhci, "Bad Slot ID %d\n", slot_id); in xhci_alloc_virt_device()
973 dev->slot_id = slot_id; in xhci_alloc_virt_device()
976 dev->out_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_DEVICE, flags); in xhci_alloc_virt_device()
977 if (!dev->out_ctx) in xhci_alloc_virt_device()
980 xhci_dbg(xhci, "Slot %d output ctx = 0x%pad (dma)\n", slot_id, &dev->out_ctx->dma); in xhci_alloc_virt_device()
983 dev->in_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_INPUT, flags); in xhci_alloc_virt_device()
984 if (!dev->in_ctx) in xhci_alloc_virt_device()
987 xhci_dbg(xhci, "Slot %d input ctx = 0x%pad (dma)\n", slot_id, &dev->in_ctx->dma); in xhci_alloc_virt_device()
991 dev->eps[i].ep_index = i; in xhci_alloc_virt_device()
992 dev->eps[i].vdev = dev; in xhci_alloc_virt_device()
993 dev->eps[i].xhci = xhci; in xhci_alloc_virt_device()
994 INIT_LIST_HEAD(&dev->eps[i].cancelled_td_list); in xhci_alloc_virt_device()
995 INIT_LIST_HEAD(&dev->eps[i].bw_endpoint_list); in xhci_alloc_virt_device()
999 dev->eps[0].ring = xhci_ring_alloc(xhci, 2, 1, TYPE_CTRL, 0, flags); in xhci_alloc_virt_device()
1000 if (!dev->eps[0].ring) in xhci_alloc_virt_device()
1003 dev->udev = udev; in xhci_alloc_virt_device()
1006 xhci->dcbaa->dev_context_ptrs[slot_id] = cpu_to_le64(dev->out_ctx->dma); in xhci_alloc_virt_device()
1007 xhci_dbg(xhci, "Set slot id %d dcbaa entry %p to 0x%llx\n", in xhci_alloc_virt_device()
1009 &xhci->dcbaa->dev_context_ptrs[slot_id], in xhci_alloc_virt_device()
1010 le64_to_cpu(xhci->dcbaa->dev_context_ptrs[slot_id])); in xhci_alloc_virt_device()
1014 xhci->devs[slot_id] = dev; in xhci_alloc_virt_device()
1019 if (dev->in_ctx) in xhci_alloc_virt_device()
1020 xhci_free_container_ctx(xhci, dev->in_ctx); in xhci_alloc_virt_device()
1021 if (dev->out_ctx) in xhci_alloc_virt_device()
1022 xhci_free_container_ctx(xhci, dev->out_ctx); in xhci_alloc_virt_device()
1028 void xhci_copy_ep0_dequeue_into_input_ctx(struct xhci_hcd *xhci, in xhci_copy_ep0_dequeue_into_input_ctx() argument
1035 virt_dev = xhci->devs[udev->slot_id]; in xhci_copy_ep0_dequeue_into_input_ctx()
1036 ep0_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, 0); in xhci_copy_ep0_dequeue_into_input_ctx()
1037 ep_ring = virt_dev->eps[0].ring; in xhci_copy_ep0_dequeue_into_input_ctx()
1045 ep0_ctx->deq = cpu_to_le64(xhci_trb_virt_to_dma(ep_ring->enq_seg, in xhci_copy_ep0_dequeue_into_input_ctx()
1046 ep_ring->enqueue) in xhci_copy_ep0_dequeue_into_input_ctx()
1047 | ep_ring->cycle_state); in xhci_copy_ep0_dequeue_into_input_ctx()
1051 * The xHCI roothub may have ports of differing speeds in any order in the port
1054 * The xHCI hardware wants to know the roothub port number that the USB device
1060 static u32 xhci_find_real_port_number(struct xhci_hcd *xhci, in xhci_find_real_port_number() argument
1066 if (udev->speed >= USB_SPEED_SUPER) in xhci_find_real_port_number()
1067 hcd = xhci_get_usb3_hcd(xhci); in xhci_find_real_port_number()
1069 hcd = xhci->main_hcd; in xhci_find_real_port_number()
1071 for (top_dev = udev; top_dev->parent && top_dev->parent->parent; in xhci_find_real_port_number()
1072 top_dev = top_dev->parent) in xhci_find_real_port_number()
1075 return xhci_find_raw_port_number(hcd, top_dev->portnum); in xhci_find_real_port_number()
1078 /* Setup an xHCI virtual device for a Set Address command */
1079 int xhci_setup_addressable_virt_dev(struct xhci_hcd *xhci, struct usb_device *udev) in xhci_setup_addressable_virt_dev() argument
1088 dev = xhci->devs[udev->slot_id]; in xhci_setup_addressable_virt_dev()
1090 if (udev->slot_id == 0 || !dev) { in xhci_setup_addressable_virt_dev()
1091 xhci_warn(xhci, "Slot ID %d is not assigned to this device\n", in xhci_setup_addressable_virt_dev()
1092 udev->slot_id); in xhci_setup_addressable_virt_dev()
1093 return -EINVAL; in xhci_setup_addressable_virt_dev()
1095 ep0_ctx = xhci_get_ep_ctx(xhci, dev->in_ctx, 0); in xhci_setup_addressable_virt_dev()
1096 slot_ctx = xhci_get_slot_ctx(xhci, dev->in_ctx); in xhci_setup_addressable_virt_dev()
1098 /* 3) Only the control endpoint is valid - one endpoint context */ in xhci_setup_addressable_virt_dev()
1099 slot_ctx->dev_info |= cpu_to_le32(LAST_CTX(1) | udev->route); in xhci_setup_addressable_virt_dev()
1100 switch (udev->speed) { in xhci_setup_addressable_virt_dev()
1102 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_SSP); in xhci_setup_addressable_virt_dev()
1106 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_SS); in xhci_setup_addressable_virt_dev()
1110 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_HS); in xhci_setup_addressable_virt_dev()
1113 /* USB core guesses at a 64-byte max packet first for FS devices */ in xhci_setup_addressable_virt_dev()
1115 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_FS); in xhci_setup_addressable_virt_dev()
1119 slot_ctx->dev_info |= cpu_to_le32(SLOT_SPEED_LS); in xhci_setup_addressable_virt_dev()
1124 return -EINVAL; in xhci_setup_addressable_virt_dev()
1127 port_num = xhci_find_real_port_number(xhci, udev); in xhci_setup_addressable_virt_dev()
1129 return -EINVAL; in xhci_setup_addressable_virt_dev()
1130 slot_ctx->dev_info2 |= cpu_to_le32(ROOT_HUB_PORT(port_num)); in xhci_setup_addressable_virt_dev()
1132 for (top_dev = udev; top_dev->parent && top_dev->parent->parent; in xhci_setup_addressable_virt_dev()
1133 top_dev = top_dev->parent) in xhci_setup_addressable_virt_dev()
1135 dev->fake_port = top_dev->portnum; in xhci_setup_addressable_virt_dev()
1136 dev->real_port = port_num; in xhci_setup_addressable_virt_dev()
1137 xhci_dbg(xhci, "Set root hub portnum to %d\n", port_num); in xhci_setup_addressable_virt_dev()
1138 xhci_dbg(xhci, "Set fake root hub portnum to %d\n", dev->fake_port); in xhci_setup_addressable_virt_dev()
1146 if (!udev->tt || !udev->tt->hub->parent) { in xhci_setup_addressable_virt_dev()
1147 dev->bw_table = &xhci->rh_bw[port_num - 1].bw_table; in xhci_setup_addressable_virt_dev()
1152 rh_bw = &xhci->rh_bw[port_num - 1]; in xhci_setup_addressable_virt_dev()
1154 list_for_each_entry(tt_bw, &rh_bw->tts, tt_list) { in xhci_setup_addressable_virt_dev()
1155 if (tt_bw->slot_id != udev->tt->hub->slot_id) in xhci_setup_addressable_virt_dev()
1158 if (!dev->udev->tt->multi || in xhci_setup_addressable_virt_dev()
1159 (udev->tt->multi && in xhci_setup_addressable_virt_dev()
1160 tt_bw->ttport == dev->udev->ttport)) { in xhci_setup_addressable_virt_dev()
1161 dev->bw_table = &tt_bw->bw_table; in xhci_setup_addressable_virt_dev()
1162 dev->tt_info = tt_bw; in xhci_setup_addressable_virt_dev()
1166 if (!dev->tt_info) in xhci_setup_addressable_virt_dev()
1167 xhci_warn(xhci, "WARN: Didn't find a matching TT\n"); in xhci_setup_addressable_virt_dev()
1171 if (udev->tt && udev->tt->hub->parent) { in xhci_setup_addressable_virt_dev()
1172 slot_ctx->tt_info = cpu_to_le32(udev->tt->hub->slot_id | in xhci_setup_addressable_virt_dev()
1173 (udev->ttport << 8)); in xhci_setup_addressable_virt_dev()
1174 if (udev->tt->multi) in xhci_setup_addressable_virt_dev()
1175 slot_ctx->dev_info |= cpu_to_le32(DEV_MTT); in xhci_setup_addressable_virt_dev()
1177 xhci_dbg(xhci, "udev->tt = %p\n", udev->tt); in xhci_setup_addressable_virt_dev()
1178 xhci_dbg(xhci, "udev->ttport = 0x%x\n", udev->ttport); in xhci_setup_addressable_virt_dev()
1180 /* Step 4 - ring already allocated */ in xhci_setup_addressable_virt_dev()
1182 ep0_ctx->ep_info2 = cpu_to_le32(EP_TYPE(CTRL_EP)); in xhci_setup_addressable_virt_dev()
1185 ep0_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(0) | ERROR_COUNT(3) | in xhci_setup_addressable_virt_dev()
1188 ep0_ctx->deq = cpu_to_le64(dev->eps[0].ring->first_seg->dma | in xhci_setup_addressable_virt_dev()
1189 dev->eps[0].ring->cycle_state); in xhci_setup_addressable_virt_dev()
1199 * Convert interval expressed as 2^(bInterval - 1) == interval into
1208 interval = clamp_val(ep->desc.bInterval, 1, 16) - 1; in xhci_parse_exponent_interval()
1209 if (interval != ep->desc.bInterval - 1) in xhci_parse_exponent_interval()
1210 dev_warn(&udev->dev, in xhci_parse_exponent_interval()
1211 "ep %#x - rounding interval to %d %sframes\n", in xhci_parse_exponent_interval()
1212 ep->desc.bEndpointAddress, in xhci_parse_exponent_interval()
1214 udev->speed == USB_SPEED_FULL ? "" : "micro"); in xhci_parse_exponent_interval()
1216 if (udev->speed == USB_SPEED_FULL) { in xhci_parse_exponent_interval()
1229 * Convert bInterval expressed in microframes (in 1-255 range) to exponent of
1238 interval = fls(desc_interval) - 1; in xhci_microframes_to_exponent()
1241 dev_dbg(&udev->dev, in xhci_microframes_to_exponent()
1242 "ep %#x - rounding interval to %d microframes, ep desc says %d microframes\n", in xhci_microframes_to_exponent()
1243 ep->desc.bEndpointAddress, in xhci_microframes_to_exponent()
1253 if (ep->desc.bInterval == 0) in xhci_parse_microframe_interval()
1256 ep->desc.bInterval, 0, 15); in xhci_parse_microframe_interval()
1264 ep->desc.bInterval * 8, 3, 10); in xhci_parse_frame_interval()
1269 * The polling interval is expressed in "microframes". If xHCI's Interval field
1280 switch (udev->speed) { in xhci_get_endpoint_interval()
1283 if (usb_endpoint_xfer_control(&ep->desc) || in xhci_get_endpoint_interval()
1284 usb_endpoint_xfer_bulk(&ep->desc)) { in xhci_get_endpoint_interval()
1292 if (usb_endpoint_xfer_int(&ep->desc) || in xhci_get_endpoint_interval()
1293 usb_endpoint_xfer_isoc(&ep->desc)) { in xhci_get_endpoint_interval()
1299 if (usb_endpoint_xfer_isoc(&ep->desc)) { in xhci_get_endpoint_interval()
1311 if (usb_endpoint_xfer_int(&ep->desc) || in xhci_get_endpoint_interval()
1312 usb_endpoint_xfer_isoc(&ep->desc)) { in xhci_get_endpoint_interval()
1332 if (udev->speed < USB_SPEED_SUPER || in xhci_get_endpoint_mult()
1333 !usb_endpoint_xfer_isoc(&ep->desc)) in xhci_get_endpoint_mult()
1335 return ep->ss_ep_comp.bmAttributes; in xhci_get_endpoint_mult()
1342 if (udev->speed >= USB_SPEED_SUPER) in xhci_get_endpoint_max_burst()
1343 return ep->ss_ep_comp.bMaxBurst; in xhci_get_endpoint_max_burst()
1345 if (udev->speed == USB_SPEED_HIGH && in xhci_get_endpoint_max_burst()
1346 (usb_endpoint_xfer_isoc(&ep->desc) || in xhci_get_endpoint_max_burst()
1347 usb_endpoint_xfer_int(&ep->desc))) in xhci_get_endpoint_max_burst()
1348 return usb_endpoint_maxp_mult(&ep->desc) - 1; in xhci_get_endpoint_max_burst()
1357 in = usb_endpoint_dir_in(&ep->desc); in xhci_get_endpoint_type()
1359 switch (usb_endpoint_type(&ep->desc)) { in xhci_get_endpoint_type()
1383 if (usb_endpoint_xfer_control(&ep->desc) || in xhci_get_max_esit_payload()
1384 usb_endpoint_xfer_bulk(&ep->desc)) in xhci_get_max_esit_payload()
1388 if ((udev->speed >= USB_SPEED_SUPER_PLUS) && in xhci_get_max_esit_payload()
1389 USB_SS_SSP_ISOC_COMP(ep->ss_ep_comp.bmAttributes)) in xhci_get_max_esit_payload()
1390 return le32_to_cpu(ep->ssp_isoc_ep_comp.dwBytesPerInterval); in xhci_get_max_esit_payload()
1393 if (udev->speed >= USB_SPEED_SUPER) in xhci_get_max_esit_payload()
1394 return le16_to_cpu(ep->ss_ep_comp.wBytesPerInterval); in xhci_get_max_esit_payload()
1396 max_packet = usb_endpoint_maxp(&ep->desc); in xhci_get_max_esit_payload()
1397 max_burst = usb_endpoint_maxp_mult(&ep->desc); in xhci_get_max_esit_payload()
1405 int xhci_endpoint_init(struct xhci_hcd *xhci, in xhci_endpoint_init() argument
1424 ep_index = xhci_get_endpoint_index(&ep->desc); in xhci_endpoint_init()
1425 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index); in xhci_endpoint_init()
1429 return -EINVAL; in xhci_endpoint_init()
1431 ring_type = usb_endpoint_type(&ep->desc); in xhci_endpoint_init()
1437 * set it to max available. See xHCI 1.1 spec 4.14.1.1 for details. in xhci_endpoint_init()
1443 if (usb_endpoint_xfer_int(&ep->desc) || in xhci_endpoint_init()
1444 usb_endpoint_xfer_isoc(&ep->desc)) { in xhci_endpoint_init()
1445 if ((xhci->quirks & XHCI_LIMIT_ENDPOINT_INTERVAL_7) && in xhci_endpoint_init()
1446 udev->speed >= USB_SPEED_HIGH && in xhci_endpoint_init()
1453 max_packet = usb_endpoint_maxp(&ep->desc); in xhci_endpoint_init()
1460 if (!usb_endpoint_xfer_isoc(&ep->desc)) in xhci_endpoint_init()
1463 if (usb_endpoint_xfer_bulk(&ep->desc)) { in xhci_endpoint_init()
1464 if (udev->speed == USB_SPEED_HIGH) in xhci_endpoint_init()
1466 if (udev->speed == USB_SPEED_FULL) { in xhci_endpoint_init()
1471 /* xHCI 1.0 and 1.1 indicates that ctrl ep avg TRB Length should be 8 */ in xhci_endpoint_init()
1472 if (usb_endpoint_xfer_control(&ep->desc) && xhci->hci_version >= 0x100) in xhci_endpoint_init()
1474 /* xhci 1.1 with LEC support doesn't use mult field, use RsvdZ */ in xhci_endpoint_init()
1475 if ((xhci->hci_version > 0x100) && HCC2_LEC(xhci->hcc_params2)) in xhci_endpoint_init()
1479 virt_dev->eps[ep_index].new_ring = in xhci_endpoint_init()
1480 xhci_ring_alloc(xhci, 2, 1, ring_type, max_packet, mem_flags); in xhci_endpoint_init()
1481 if (!virt_dev->eps[ep_index].new_ring) in xhci_endpoint_init()
1482 return -ENOMEM; in xhci_endpoint_init()
1484 virt_dev->eps[ep_index].skip = false; in xhci_endpoint_init()
1485 ep_ring = virt_dev->eps[ep_index].new_ring; in xhci_endpoint_init()
1488 ep_ctx->ep_info = cpu_to_le32(EP_MAX_ESIT_PAYLOAD_HI(max_esit_payload) | in xhci_endpoint_init()
1491 ep_ctx->ep_info2 = cpu_to_le32(EP_TYPE(endpoint_type) | in xhci_endpoint_init()
1495 ep_ctx->deq = cpu_to_le64(ep_ring->first_seg->dma | in xhci_endpoint_init()
1496 ep_ring->cycle_state); in xhci_endpoint_init()
1498 ep_ctx->tx_info = cpu_to_le32(EP_MAX_ESIT_PAYLOAD_LO(max_esit_payload) | in xhci_endpoint_init()
1504 void xhci_endpoint_zero(struct xhci_hcd *xhci, in xhci_endpoint_zero() argument
1511 ep_index = xhci_get_endpoint_index(&ep->desc); in xhci_endpoint_zero()
1512 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index); in xhci_endpoint_zero()
1514 ep_ctx->ep_info = 0; in xhci_endpoint_zero()
1515 ep_ctx->ep_info2 = 0; in xhci_endpoint_zero()
1516 ep_ctx->deq = 0; in xhci_endpoint_zero()
1517 ep_ctx->tx_info = 0; in xhci_endpoint_zero()
1525 bw_info->ep_interval = 0; in xhci_clear_endpoint_bw_info()
1526 bw_info->mult = 0; in xhci_clear_endpoint_bw_info()
1527 bw_info->num_packets = 0; in xhci_clear_endpoint_bw_info()
1528 bw_info->max_packet_size = 0; in xhci_clear_endpoint_bw_info()
1529 bw_info->type = 0; in xhci_clear_endpoint_bw_info()
1530 bw_info->max_esit_payload = 0; in xhci_clear_endpoint_bw_info()
1533 void xhci_update_bw_info(struct xhci_hcd *xhci, in xhci_update_bw_info() argument
1544 bw_info = &virt_dev->eps[i].bw_info; in xhci_update_bw_info()
1547 * unconditionally clearing the bandwidth info for non-periodic in xhci_update_bw_info()
1558 ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, i); in xhci_update_bw_info()
1559 ep_type = CTX_TO_EP_TYPE(le32_to_cpu(ep_ctx->ep_info2)); in xhci_update_bw_info()
1561 /* Ignore non-periodic endpoints */ in xhci_update_bw_info()
1568 bw_info->ep_interval = CTX_TO_EP_INTERVAL( in xhci_update_bw_info()
1569 le32_to_cpu(ep_ctx->ep_info)); in xhci_update_bw_info()
1570 /* Number of packets and mult are zero-based in the in xhci_update_bw_info()
1571 * input context, but we want one-based for the in xhci_update_bw_info()
1574 bw_info->mult = CTX_TO_EP_MULT( in xhci_update_bw_info()
1575 le32_to_cpu(ep_ctx->ep_info)) + 1; in xhci_update_bw_info()
1576 bw_info->num_packets = CTX_TO_MAX_BURST( in xhci_update_bw_info()
1577 le32_to_cpu(ep_ctx->ep_info2)) + 1; in xhci_update_bw_info()
1578 bw_info->max_packet_size = MAX_PACKET_DECODED( in xhci_update_bw_info()
1579 le32_to_cpu(ep_ctx->ep_info2)); in xhci_update_bw_info()
1580 bw_info->type = ep_type; in xhci_update_bw_info()
1581 bw_info->max_esit_payload = CTX_TO_MAX_ESIT_PAYLOAD( in xhci_update_bw_info()
1582 le32_to_cpu(ep_ctx->tx_info)); in xhci_update_bw_info()
1591 void xhci_endpoint_copy(struct xhci_hcd *xhci, in xhci_endpoint_copy() argument
1599 out_ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index); in xhci_endpoint_copy()
1600 in_ep_ctx = xhci_get_ep_ctx(xhci, in_ctx, ep_index); in xhci_endpoint_copy()
1602 in_ep_ctx->ep_info = out_ep_ctx->ep_info; in xhci_endpoint_copy()
1603 in_ep_ctx->ep_info2 = out_ep_ctx->ep_info2; in xhci_endpoint_copy()
1604 in_ep_ctx->deq = out_ep_ctx->deq; in xhci_endpoint_copy()
1605 in_ep_ctx->tx_info = out_ep_ctx->tx_info; in xhci_endpoint_copy()
1606 if (xhci->quirks & XHCI_MTK_HOST) { in xhci_endpoint_copy()
1607 in_ep_ctx->reserved[0] = out_ep_ctx->reserved[0]; in xhci_endpoint_copy()
1608 in_ep_ctx->reserved[1] = out_ep_ctx->reserved[1]; in xhci_endpoint_copy()
1617 void xhci_slot_copy(struct xhci_hcd *xhci, in xhci_slot_copy() argument
1624 in_slot_ctx = xhci_get_slot_ctx(xhci, in_ctx); in xhci_slot_copy()
1625 out_slot_ctx = xhci_get_slot_ctx(xhci, out_ctx); in xhci_slot_copy()
1627 in_slot_ctx->dev_info = out_slot_ctx->dev_info; in xhci_slot_copy()
1628 in_slot_ctx->dev_info2 = out_slot_ctx->dev_info2; in xhci_slot_copy()
1629 in_slot_ctx->tt_info = out_slot_ctx->tt_info; in xhci_slot_copy()
1630 in_slot_ctx->dev_state = out_slot_ctx->dev_state; in xhci_slot_copy()
1634 static int scratchpad_alloc(struct xhci_hcd *xhci, gfp_t flags) in scratchpad_alloc() argument
1637 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in scratchpad_alloc()
1638 int num_sp = HCS_MAX_SCRATCHPAD(xhci->hcs_params2); in scratchpad_alloc()
1640 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in scratchpad_alloc()
1646 xhci->scratchpad = kzalloc_node(sizeof(*xhci->scratchpad), flags, in scratchpad_alloc()
1648 if (!xhci->scratchpad) in scratchpad_alloc()
1651 xhci->scratchpad->sp_array = dma_alloc_coherent(dev, in scratchpad_alloc()
1653 &xhci->scratchpad->sp_dma, flags); in scratchpad_alloc()
1654 if (!xhci->scratchpad->sp_array) in scratchpad_alloc()
1657 xhci->scratchpad->sp_buffers = kcalloc_node(num_sp, sizeof(void *), in scratchpad_alloc()
1659 if (!xhci->scratchpad->sp_buffers) in scratchpad_alloc()
1662 xhci->dcbaa->dev_context_ptrs[0] = cpu_to_le64(xhci->scratchpad->sp_dma); in scratchpad_alloc()
1665 void *buf = dma_alloc_coherent(dev, xhci->page_size, &dma, in scratchpad_alloc()
1670 xhci->scratchpad->sp_array[i] = dma; in scratchpad_alloc()
1671 xhci->scratchpad->sp_buffers[i] = buf; in scratchpad_alloc()
1677 while (i--) in scratchpad_alloc()
1678 dma_free_coherent(dev, xhci->page_size, in scratchpad_alloc()
1679 xhci->scratchpad->sp_buffers[i], in scratchpad_alloc()
1680 xhci->scratchpad->sp_array[i]); in scratchpad_alloc()
1682 kfree(xhci->scratchpad->sp_buffers); in scratchpad_alloc()
1686 xhci->scratchpad->sp_array, in scratchpad_alloc()
1687 xhci->scratchpad->sp_dma); in scratchpad_alloc()
1690 kfree(xhci->scratchpad); in scratchpad_alloc()
1691 xhci->scratchpad = NULL; in scratchpad_alloc()
1694 return -ENOMEM; in scratchpad_alloc()
1697 static void scratchpad_free(struct xhci_hcd *xhci) in scratchpad_free() argument
1701 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in scratchpad_free()
1703 if (!xhci->scratchpad) in scratchpad_free()
1706 num_sp = HCS_MAX_SCRATCHPAD(xhci->hcs_params2); in scratchpad_free()
1709 dma_free_coherent(dev, xhci->page_size, in scratchpad_free()
1710 xhci->scratchpad->sp_buffers[i], in scratchpad_free()
1711 xhci->scratchpad->sp_array[i]); in scratchpad_free()
1713 kfree(xhci->scratchpad->sp_buffers); in scratchpad_free()
1715 xhci->scratchpad->sp_array, in scratchpad_free()
1716 xhci->scratchpad->sp_dma); in scratchpad_free()
1717 kfree(xhci->scratchpad); in scratchpad_free()
1718 xhci->scratchpad = NULL; in scratchpad_free()
1721 struct xhci_command *xhci_alloc_command(struct xhci_hcd *xhci, in xhci_alloc_command() argument
1725 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_command()
1732 command->completion = in xhci_alloc_command()
1735 if (!command->completion) { in xhci_alloc_command()
1739 init_completion(command->completion); in xhci_alloc_command()
1742 command->status = 0; in xhci_alloc_command()
1744 command->timeout_ms = XHCI_CMD_DEFAULT_TIMEOUT; in xhci_alloc_command()
1745 INIT_LIST_HEAD(&command->cmd_list); in xhci_alloc_command()
1749 struct xhci_command *xhci_alloc_command_with_ctx(struct xhci_hcd *xhci, in xhci_alloc_command_with_ctx() argument
1754 command = xhci_alloc_command(xhci, allocate_completion, mem_flags); in xhci_alloc_command_with_ctx()
1758 command->in_ctx = xhci_alloc_container_ctx(xhci, XHCI_CTX_TYPE_INPUT, in xhci_alloc_command_with_ctx()
1760 if (!command->in_ctx) { in xhci_alloc_command_with_ctx()
1761 kfree(command->completion); in xhci_alloc_command_with_ctx()
1773 void xhci_free_command(struct xhci_hcd *xhci, in xhci_free_command() argument
1776 xhci_free_container_ctx(xhci, in xhci_free_command()
1777 command->in_ctx); in xhci_free_command()
1778 kfree(command->completion); in xhci_free_command()
1782 static int xhci_alloc_erst(struct xhci_hcd *xhci, in xhci_alloc_erst() argument
1792 size = size_mul(sizeof(struct xhci_erst_entry), evt_ring->num_segs); in xhci_alloc_erst()
1793 erst->entries = dma_alloc_coherent(xhci_to_hcd(xhci)->self.sysdev, in xhci_alloc_erst()
1794 size, &erst->erst_dma_addr, flags); in xhci_alloc_erst()
1795 if (!erst->entries) in xhci_alloc_erst()
1796 return -ENOMEM; in xhci_alloc_erst()
1798 erst->num_entries = evt_ring->num_segs; in xhci_alloc_erst()
1800 seg = evt_ring->first_seg; in xhci_alloc_erst()
1801 for (val = 0; val < evt_ring->num_segs; val++) { in xhci_alloc_erst()
1802 entry = &erst->entries[val]; in xhci_alloc_erst()
1803 entry->seg_addr = cpu_to_le64(seg->dma); in xhci_alloc_erst()
1804 entry->seg_size = cpu_to_le32(TRBS_PER_SEGMENT); in xhci_alloc_erst()
1805 entry->rsvd = 0; in xhci_alloc_erst()
1806 seg = seg->next; in xhci_alloc_erst()
1813 xhci_remove_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir) in xhci_remove_interrupter() argument
1825 if (ir->ir_set) { in xhci_remove_interrupter()
1826 tmp = readl(&ir->ir_set->erst_size); in xhci_remove_interrupter()
1828 writel(tmp, &ir->ir_set->erst_size); in xhci_remove_interrupter()
1830 xhci_write_64(xhci, ERST_EHB, &ir->ir_set->erst_dequeue); in xhci_remove_interrupter()
1835 xhci_free_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir) in xhci_free_interrupter() argument
1837 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_free_interrupter()
1843 erst_size = sizeof(struct xhci_erst_entry) * ir->erst.num_entries; in xhci_free_interrupter()
1844 if (ir->erst.entries) in xhci_free_interrupter()
1846 ir->erst.entries, in xhci_free_interrupter()
1847 ir->erst.erst_dma_addr); in xhci_free_interrupter()
1848 ir->erst.entries = NULL; in xhci_free_interrupter()
1851 if (ir->event_ring) in xhci_free_interrupter()
1852 xhci_ring_free(xhci, ir->event_ring); in xhci_free_interrupter()
1854 ir->event_ring = NULL; in xhci_free_interrupter()
1861 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_remove_secondary_interrupter() local
1864 spin_lock_irq(&xhci->lock); in xhci_remove_secondary_interrupter()
1867 if (!ir || !ir->intr_num || ir->intr_num >= xhci->max_interrupters) { in xhci_remove_secondary_interrupter()
1868 xhci_dbg(xhci, "Invalid secondary interrupter, can't remove\n"); in xhci_remove_secondary_interrupter()
1869 spin_unlock_irq(&xhci->lock); in xhci_remove_secondary_interrupter()
1873 intr_num = ir->intr_num; in xhci_remove_secondary_interrupter()
1875 xhci_remove_interrupter(xhci, ir); in xhci_remove_secondary_interrupter()
1876 xhci->interrupters[intr_num] = NULL; in xhci_remove_secondary_interrupter()
1878 spin_unlock_irq(&xhci->lock); in xhci_remove_secondary_interrupter()
1880 xhci_free_interrupter(xhci, ir); in xhci_remove_secondary_interrupter()
1884 void xhci_mem_cleanup(struct xhci_hcd *xhci) in xhci_mem_cleanup() argument
1886 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_mem_cleanup()
1889 cancel_delayed_work_sync(&xhci->cmd_timer); in xhci_mem_cleanup()
1891 for (i = 0; i < xhci->max_interrupters; i++) { in xhci_mem_cleanup()
1892 if (xhci->interrupters[i]) { in xhci_mem_cleanup()
1893 xhci_remove_interrupter(xhci, xhci->interrupters[i]); in xhci_mem_cleanup()
1894 xhci_free_interrupter(xhci, xhci->interrupters[i]); in xhci_mem_cleanup()
1895 xhci->interrupters[i] = NULL; in xhci_mem_cleanup()
1898 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed interrupters"); in xhci_mem_cleanup()
1900 if (xhci->cmd_ring) in xhci_mem_cleanup()
1901 xhci_ring_free(xhci, xhci->cmd_ring); in xhci_mem_cleanup()
1902 xhci->cmd_ring = NULL; in xhci_mem_cleanup()
1903 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed command ring"); in xhci_mem_cleanup()
1904 xhci_cleanup_command_queue(xhci); in xhci_mem_cleanup()
1906 num_ports = HCS_MAX_PORTS(xhci->hcs_params1); in xhci_mem_cleanup()
1907 for (i = 0; i < num_ports && xhci->rh_bw; i++) { in xhci_mem_cleanup()
1908 struct xhci_interval_bw_table *bwt = &xhci->rh_bw[i].bw_table; in xhci_mem_cleanup()
1910 struct list_head *ep = &bwt->interval_bw[j].endpoints; in xhci_mem_cleanup()
1912 list_del_init(ep->next); in xhci_mem_cleanup()
1916 for (i = HCS_MAX_SLOTS(xhci->hcs_params1); i > 0; i--) in xhci_mem_cleanup()
1917 xhci_free_virt_devices_depth_first(xhci, i); in xhci_mem_cleanup()
1919 dma_pool_destroy(xhci->segment_pool); in xhci_mem_cleanup()
1920 xhci->segment_pool = NULL; in xhci_mem_cleanup()
1921 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed segment pool"); in xhci_mem_cleanup()
1923 dma_pool_destroy(xhci->device_pool); in xhci_mem_cleanup()
1924 xhci->device_pool = NULL; in xhci_mem_cleanup()
1925 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Freed device context pool"); in xhci_mem_cleanup()
1927 dma_pool_destroy(xhci->small_streams_pool); in xhci_mem_cleanup()
1928 xhci->small_streams_pool = NULL; in xhci_mem_cleanup()
1929 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_cleanup()
1932 dma_pool_destroy(xhci->medium_streams_pool); in xhci_mem_cleanup()
1933 xhci->medium_streams_pool = NULL; in xhci_mem_cleanup()
1934 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_cleanup()
1937 if (xhci->dcbaa) in xhci_mem_cleanup()
1938 dma_free_coherent(dev, sizeof(*xhci->dcbaa), in xhci_mem_cleanup()
1939 xhci->dcbaa, xhci->dcbaa->dma); in xhci_mem_cleanup()
1940 xhci->dcbaa = NULL; in xhci_mem_cleanup()
1942 scratchpad_free(xhci); in xhci_mem_cleanup()
1944 if (!xhci->rh_bw) in xhci_mem_cleanup()
1949 list_for_each_entry_safe(tt, n, &xhci->rh_bw[i].tts, tt_list) { in xhci_mem_cleanup()
1950 list_del(&tt->tt_list); in xhci_mem_cleanup()
1956 xhci->cmd_ring_reserved_trbs = 0; in xhci_mem_cleanup()
1957 xhci->usb2_rhub.num_ports = 0; in xhci_mem_cleanup()
1958 xhci->usb3_rhub.num_ports = 0; in xhci_mem_cleanup()
1959 xhci->num_active_eps = 0; in xhci_mem_cleanup()
1960 kfree(xhci->usb2_rhub.ports); in xhci_mem_cleanup()
1961 kfree(xhci->usb3_rhub.ports); in xhci_mem_cleanup()
1962 kfree(xhci->hw_ports); in xhci_mem_cleanup()
1963 kfree(xhci->rh_bw); in xhci_mem_cleanup()
1964 kfree(xhci->ext_caps); in xhci_mem_cleanup()
1965 for (i = 0; i < xhci->num_port_caps; i++) in xhci_mem_cleanup()
1966 kfree(xhci->port_caps[i].psi); in xhci_mem_cleanup()
1967 kfree(xhci->port_caps); in xhci_mem_cleanup()
1968 kfree(xhci->interrupters); in xhci_mem_cleanup()
1969 xhci->num_port_caps = 0; in xhci_mem_cleanup()
1971 xhci->usb2_rhub.ports = NULL; in xhci_mem_cleanup()
1972 xhci->usb3_rhub.ports = NULL; in xhci_mem_cleanup()
1973 xhci->hw_ports = NULL; in xhci_mem_cleanup()
1974 xhci->rh_bw = NULL; in xhci_mem_cleanup()
1975 xhci->ext_caps = NULL; in xhci_mem_cleanup()
1976 xhci->port_caps = NULL; in xhci_mem_cleanup()
1977 xhci->interrupters = NULL; in xhci_mem_cleanup()
1979 xhci->page_size = 0; in xhci_mem_cleanup()
1980 xhci->page_shift = 0; in xhci_mem_cleanup()
1981 xhci->usb2_rhub.bus_state.bus_suspended = 0; in xhci_mem_cleanup()
1982 xhci->usb3_rhub.bus_state.bus_suspended = 0; in xhci_mem_cleanup()
1985 static void xhci_set_hc_event_deq(struct xhci_hcd *xhci, struct xhci_interrupter *ir) in xhci_set_hc_event_deq() argument
1989 deq = xhci_trb_virt_to_dma(ir->event_ring->deq_seg, in xhci_set_hc_event_deq()
1990 ir->event_ring->dequeue); in xhci_set_hc_event_deq()
1992 xhci_warn(xhci, "WARN something wrong with SW event ring dequeue ptr.\n"); in xhci_set_hc_event_deq()
1997 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_set_hc_event_deq()
1999 xhci_write_64(xhci, deq & ERST_PTR_MASK, &ir->ir_set->erst_dequeue); in xhci_set_hc_event_deq()
2002 static void xhci_add_in_port(struct xhci_hcd *xhci, unsigned int num_ports, in xhci_add_in_port() argument
2009 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_add_in_port()
2017 rhub = &xhci->usb3_rhub; in xhci_add_in_port()
2019 * Some hosts incorrectly use sub-minor version for minor in xhci_add_in_port()
2028 * Some zhaoxin's xHCI controller that follow usb3.1 spec in xhci_add_in_port()
2031 if (xhci->quirks & XHCI_ZHAOXIN_HOST) { in xhci_add_in_port()
2037 rhub = &xhci->usb2_rhub; in xhci_add_in_port()
2039 xhci_warn(xhci, "Ignoring unknown port speed, Ext Cap %p, revision = 0x%x\n", in xhci_add_in_port()
2049 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_add_in_port()
2053 if (port_offset == 0 || (port_offset + port_count - 1) > num_ports) in xhci_add_in_port()
2057 port_cap = &xhci->port_caps[xhci->num_port_caps++]; in xhci_add_in_port()
2058 if (xhci->num_port_caps > max_caps) in xhci_add_in_port()
2061 port_cap->psi_count = XHCI_EXT_PORT_PSIC(temp); in xhci_add_in_port()
2063 if (port_cap->psi_count) { in xhci_add_in_port()
2064 port_cap->psi = kcalloc_node(port_cap->psi_count, in xhci_add_in_port()
2065 sizeof(*port_cap->psi), in xhci_add_in_port()
2067 if (!port_cap->psi) in xhci_add_in_port()
2068 port_cap->psi_count = 0; in xhci_add_in_port()
2070 port_cap->psi_uid_count++; in xhci_add_in_port()
2071 for (i = 0; i < port_cap->psi_count; i++) { in xhci_add_in_port()
2072 port_cap->psi[i] = readl(addr + 4 + i); in xhci_add_in_port()
2077 if (i && (XHCI_EXT_PORT_PSIV(port_cap->psi[i]) != in xhci_add_in_port()
2078 XHCI_EXT_PORT_PSIV(port_cap->psi[i - 1]))) in xhci_add_in_port()
2079 port_cap->psi_uid_count++; in xhci_add_in_port()
2081 if (xhci->quirks & XHCI_ZHAOXIN_HOST && in xhci_add_in_port()
2083 XHCI_EXT_PORT_PSIV(port_cap->psi[i]) >= 5) in xhci_add_in_port()
2086 xhci_dbg(xhci, "PSIV:%d PSIE:%d PLT:%d PFD:%d LP:%d PSIM:%d\n", in xhci_add_in_port()
2087 XHCI_EXT_PORT_PSIV(port_cap->psi[i]), in xhci_add_in_port()
2088 XHCI_EXT_PORT_PSIE(port_cap->psi[i]), in xhci_add_in_port()
2089 XHCI_EXT_PORT_PLT(port_cap->psi[i]), in xhci_add_in_port()
2090 XHCI_EXT_PORT_PFD(port_cap->psi[i]), in xhci_add_in_port()
2091 XHCI_EXT_PORT_LP(port_cap->psi[i]), in xhci_add_in_port()
2092 XHCI_EXT_PORT_PSIM(port_cap->psi[i])); in xhci_add_in_port()
2096 rhub->maj_rev = major_revision; in xhci_add_in_port()
2098 if (rhub->min_rev < minor_revision) in xhci_add_in_port()
2099 rhub->min_rev = minor_revision; in xhci_add_in_port()
2101 port_cap->maj_rev = major_revision; in xhci_add_in_port()
2102 port_cap->min_rev = minor_revision; in xhci_add_in_port()
2105 if (major_revision < 0x03 && xhci->num_ext_caps < max_caps) in xhci_add_in_port()
2106 xhci->ext_caps[xhci->num_ext_caps++] = temp; in xhci_add_in_port()
2108 if ((xhci->hci_version >= 0x100) && (major_revision != 0x03) && in xhci_add_in_port()
2110 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_add_in_port()
2111 "xHCI 1.0: support USB2 hardware lpm"); in xhci_add_in_port()
2112 xhci->hw_lpm_support = 1; in xhci_add_in_port()
2115 port_offset--; in xhci_add_in_port()
2117 struct xhci_port *hw_port = &xhci->hw_ports[i]; in xhci_add_in_port()
2119 if (hw_port->rhub) { in xhci_add_in_port()
2120 xhci_warn(xhci, "Duplicate port entry, Ext Cap %p, port %u\n", addr, i); in xhci_add_in_port()
2121 xhci_warn(xhci, "Port was marked as USB %u, duplicated as USB %u\n", in xhci_add_in_port()
2122 hw_port->rhub->maj_rev, major_revision); in xhci_add_in_port()
2126 if (hw_port->rhub != rhub && in xhci_add_in_port()
2127 hw_port->hcd_portnum != DUPLICATE_ENTRY) { in xhci_add_in_port()
2128 hw_port->rhub->num_ports--; in xhci_add_in_port()
2129 hw_port->hcd_portnum = DUPLICATE_ENTRY; in xhci_add_in_port()
2133 hw_port->rhub = rhub; in xhci_add_in_port()
2134 hw_port->port_cap = port_cap; in xhci_add_in_port()
2135 rhub->num_ports++; in xhci_add_in_port()
2140 static void xhci_create_rhub_port_array(struct xhci_hcd *xhci, in xhci_create_rhub_port_array() argument
2145 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_create_rhub_port_array()
2147 if (!rhub->num_ports) in xhci_create_rhub_port_array()
2149 rhub->ports = kcalloc_node(rhub->num_ports, sizeof(*rhub->ports), in xhci_create_rhub_port_array()
2151 if (!rhub->ports) in xhci_create_rhub_port_array()
2154 for (i = 0; i < HCS_MAX_PORTS(xhci->hcs_params1); i++) { in xhci_create_rhub_port_array()
2155 if (xhci->hw_ports[i].rhub != rhub || in xhci_create_rhub_port_array()
2156 xhci->hw_ports[i].hcd_portnum == DUPLICATE_ENTRY) in xhci_create_rhub_port_array()
2158 xhci->hw_ports[i].hcd_portnum = port_index; in xhci_create_rhub_port_array()
2159 rhub->ports[port_index] = &xhci->hw_ports[i]; in xhci_create_rhub_port_array()
2161 if (port_index == rhub->num_ports) in xhci_create_rhub_port_array()
2173 static int xhci_setup_port_arrays(struct xhci_hcd *xhci, gfp_t flags) in xhci_setup_port_arrays() argument
2181 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_setup_port_arrays()
2183 num_ports = HCS_MAX_PORTS(xhci->hcs_params1); in xhci_setup_port_arrays()
2184 xhci->hw_ports = kcalloc_node(num_ports, sizeof(*xhci->hw_ports), in xhci_setup_port_arrays()
2186 if (!xhci->hw_ports) in xhci_setup_port_arrays()
2187 return -ENOMEM; in xhci_setup_port_arrays()
2190 xhci->hw_ports[i].addr = &xhci->op_regs->port_status_base + in xhci_setup_port_arrays()
2192 xhci->hw_ports[i].hw_portnum = i; in xhci_setup_port_arrays()
2194 init_completion(&xhci->hw_ports[i].rexit_done); in xhci_setup_port_arrays()
2195 init_completion(&xhci->hw_ports[i].u3exit_done); in xhci_setup_port_arrays()
2198 xhci->rh_bw = kcalloc_node(num_ports, sizeof(*xhci->rh_bw), flags, in xhci_setup_port_arrays()
2200 if (!xhci->rh_bw) in xhci_setup_port_arrays()
2201 return -ENOMEM; in xhci_setup_port_arrays()
2205 INIT_LIST_HEAD(&xhci->rh_bw[i].tts); in xhci_setup_port_arrays()
2206 bw_table = &xhci->rh_bw[i].bw_table; in xhci_setup_port_arrays()
2208 INIT_LIST_HEAD(&bw_table->interval_bw[j].endpoints); in xhci_setup_port_arrays()
2210 base = &xhci->cap_regs->hc_capbase; in xhci_setup_port_arrays()
2214 xhci_err(xhci, "No Extended Capability registers, unable to set up roothub\n"); in xhci_setup_port_arrays()
2215 return -ENODEV; in xhci_setup_port_arrays()
2226 xhci->ext_caps = kcalloc_node(cap_count, sizeof(*xhci->ext_caps), in xhci_setup_port_arrays()
2228 if (!xhci->ext_caps) in xhci_setup_port_arrays()
2229 return -ENOMEM; in xhci_setup_port_arrays()
2231 xhci->port_caps = kcalloc_node(cap_count, sizeof(*xhci->port_caps), in xhci_setup_port_arrays()
2233 if (!xhci->port_caps) in xhci_setup_port_arrays()
2234 return -ENOMEM; in xhci_setup_port_arrays()
2239 xhci_add_in_port(xhci, num_ports, base + offset, cap_count); in xhci_setup_port_arrays()
2240 if (xhci->usb2_rhub.num_ports + xhci->usb3_rhub.num_ports == in xhci_setup_port_arrays()
2246 if (xhci->usb2_rhub.num_ports == 0 && xhci->usb3_rhub.num_ports == 0) { in xhci_setup_port_arrays()
2247 xhci_warn(xhci, "No ports on the roothubs?\n"); in xhci_setup_port_arrays()
2248 return -ENODEV; in xhci_setup_port_arrays()
2250 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_setup_port_arrays()
2252 xhci->usb2_rhub.num_ports, xhci->usb3_rhub.num_ports); in xhci_setup_port_arrays()
2257 if (xhci->usb3_rhub.num_ports > USB_SS_MAXPORTS) { in xhci_setup_port_arrays()
2258 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_setup_port_arrays()
2261 xhci->usb3_rhub.num_ports = USB_SS_MAXPORTS; in xhci_setup_port_arrays()
2263 if (xhci->usb2_rhub.num_ports > USB_MAXCHILDREN) { in xhci_setup_port_arrays()
2264 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_setup_port_arrays()
2267 xhci->usb2_rhub.num_ports = USB_MAXCHILDREN; in xhci_setup_port_arrays()
2270 if (!xhci->usb2_rhub.num_ports) in xhci_setup_port_arrays()
2271 xhci_info(xhci, "USB2 root hub has no ports\n"); in xhci_setup_port_arrays()
2273 if (!xhci->usb3_rhub.num_ports) in xhci_setup_port_arrays()
2274 xhci_info(xhci, "USB3 root hub has no ports\n"); in xhci_setup_port_arrays()
2276 xhci_create_rhub_port_array(xhci, &xhci->usb2_rhub, flags); in xhci_setup_port_arrays()
2277 xhci_create_rhub_port_array(xhci, &xhci->usb3_rhub, flags); in xhci_setup_port_arrays()
2283 xhci_alloc_interrupter(struct xhci_hcd *xhci, int segs, gfp_t flags) in xhci_alloc_interrupter() argument
2285 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_alloc_interrupter()
2296 num_segs = min_t(unsigned int, 1 << HCS_ERST_MAX(xhci->hcs_params2), in xhci_alloc_interrupter()
2299 ir->event_ring = xhci_ring_alloc(xhci, num_segs, 1, TYPE_EVENT, 0, in xhci_alloc_interrupter()
2301 if (!ir->event_ring) { in xhci_alloc_interrupter()
2302 xhci_warn(xhci, "Failed to allocate interrupter event ring\n"); in xhci_alloc_interrupter()
2307 ret = xhci_alloc_erst(xhci, ir->event_ring, &ir->erst, flags); in xhci_alloc_interrupter()
2309 xhci_warn(xhci, "Failed to allocate interrupter erst\n"); in xhci_alloc_interrupter()
2310 xhci_ring_free(xhci, ir->event_ring); in xhci_alloc_interrupter()
2319 xhci_add_interrupter(struct xhci_hcd *xhci, struct xhci_interrupter *ir, in xhci_add_interrupter() argument
2325 if (intr_num >= xhci->max_interrupters) { in xhci_add_interrupter()
2326 xhci_warn(xhci, "Can't add interrupter %d, max interrupters %d\n", in xhci_add_interrupter()
2327 intr_num, xhci->max_interrupters); in xhci_add_interrupter()
2328 return -EINVAL; in xhci_add_interrupter()
2331 if (xhci->interrupters[intr_num]) { in xhci_add_interrupter()
2332 xhci_warn(xhci, "Interrupter %d\n already set up", intr_num); in xhci_add_interrupter()
2333 return -EINVAL; in xhci_add_interrupter()
2336 xhci->interrupters[intr_num] = ir; in xhci_add_interrupter()
2337 ir->intr_num = intr_num; in xhci_add_interrupter()
2338 ir->ir_set = &xhci->run_regs->ir_set[intr_num]; in xhci_add_interrupter()
2341 erst_size = readl(&ir->ir_set->erst_size); in xhci_add_interrupter()
2343 erst_size |= ir->event_ring->num_segs; in xhci_add_interrupter()
2344 writel(erst_size, &ir->ir_set->erst_size); in xhci_add_interrupter()
2346 erst_base = xhci_read_64(xhci, &ir->ir_set->erst_base); in xhci_add_interrupter()
2348 erst_base |= ir->erst.erst_dma_addr & ~ERST_BASE_RSVDP; in xhci_add_interrupter()
2349 xhci_write_64(xhci, erst_base, &ir->ir_set->erst_base); in xhci_add_interrupter()
2352 xhci_set_hc_event_deq(xhci, ir); in xhci_add_interrupter()
2360 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_create_secondary_interrupter() local
2363 int err = -ENOSPC; in xhci_create_secondary_interrupter()
2365 if (!xhci->interrupters || xhci->max_interrupters <= 1) in xhci_create_secondary_interrupter()
2368 ir = xhci_alloc_interrupter(xhci, num_seg, GFP_KERNEL); in xhci_create_secondary_interrupter()
2372 spin_lock_irq(&xhci->lock); in xhci_create_secondary_interrupter()
2375 for (i = 1; i < xhci->max_interrupters; i++) { in xhci_create_secondary_interrupter()
2376 if (xhci->interrupters[i] == NULL) { in xhci_create_secondary_interrupter()
2377 err = xhci_add_interrupter(xhci, ir, i); in xhci_create_secondary_interrupter()
2382 spin_unlock_irq(&xhci->lock); in xhci_create_secondary_interrupter()
2385 xhci_warn(xhci, "Failed to add secondary interrupter, max interrupters %d\n", in xhci_create_secondary_interrupter()
2386 xhci->max_interrupters); in xhci_create_secondary_interrupter()
2387 xhci_free_interrupter(xhci, ir); in xhci_create_secondary_interrupter()
2391 xhci_dbg(xhci, "Add secondary interrupter %d, max interrupters %d\n", in xhci_create_secondary_interrupter()
2392 i, xhci->max_interrupters); in xhci_create_secondary_interrupter()
2398 int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags) in xhci_mem_init() argument
2401 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_mem_init()
2408 INIT_LIST_HEAD(&xhci->cmd_list); in xhci_mem_init()
2411 INIT_DELAYED_WORK(&xhci->cmd_timer, xhci_handle_command_timeout); in xhci_mem_init()
2412 init_completion(&xhci->cmd_ring_stop_completion); in xhci_mem_init()
2414 page_size = readl(&xhci->op_regs->page_size); in xhci_mem_init()
2415 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2419 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2422 xhci_warn(xhci, "WARN: no supported page size\n"); in xhci_mem_init()
2424 xhci->page_shift = 12; in xhci_mem_init()
2425 xhci->page_size = 1 << xhci->page_shift; in xhci_mem_init()
2426 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2427 "HCD page size set to %iK", xhci->page_size / 1024); in xhci_mem_init()
2433 val = HCS_MAX_SLOTS(readl(&xhci->cap_regs->hcs_params1)); in xhci_mem_init()
2434 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2436 val2 = readl(&xhci->op_regs->config_reg); in xhci_mem_init()
2438 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2440 writel(val, &xhci->op_regs->config_reg); in xhci_mem_init()
2443 * xHCI section 5.4.6 - Device Context array must be in xhci_mem_init()
2444 * "physically contiguous and 64-byte (cache line) aligned". in xhci_mem_init()
2446 xhci->dcbaa = dma_alloc_coherent(dev, sizeof(*xhci->dcbaa), &dma, in xhci_mem_init()
2448 if (!xhci->dcbaa) in xhci_mem_init()
2450 xhci->dcbaa->dma = dma; in xhci_mem_init()
2451 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2453 &xhci->dcbaa->dma, xhci->dcbaa); in xhci_mem_init()
2454 xhci_write_64(xhci, dma, &xhci->op_regs->dcbaa_ptr); in xhci_mem_init()
2459 * however, the command ring segment needs 64-byte aligned segments in xhci_mem_init()
2463 if (xhci->quirks & XHCI_ZHAOXIN_TRB_FETCH) in xhci_mem_init()
2464 xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, in xhci_mem_init()
2465 TRB_SEGMENT_SIZE * 2, TRB_SEGMENT_SIZE * 2, xhci->page_size * 2); in xhci_mem_init()
2467 xhci->segment_pool = dma_pool_create("xHCI ring segments", dev, in xhci_mem_init()
2468 TRB_SEGMENT_SIZE, TRB_SEGMENT_SIZE, xhci->page_size); in xhci_mem_init()
2471 xhci->device_pool = dma_pool_create("xHCI input/output contexts", dev, in xhci_mem_init()
2472 2112, 64, xhci->page_size); in xhci_mem_init()
2473 if (!xhci->segment_pool || !xhci->device_pool) in xhci_mem_init()
2477 * and only need to be 16-byte aligned. in xhci_mem_init()
2479 xhci->small_streams_pool = in xhci_mem_init()
2480 dma_pool_create("xHCI 256 byte stream ctx arrays", in xhci_mem_init()
2482 xhci->medium_streams_pool = in xhci_mem_init()
2483 dma_pool_create("xHCI 1KB stream ctx arrays", in xhci_mem_init()
2489 if (!xhci->small_streams_pool || !xhci->medium_streams_pool) in xhci_mem_init()
2493 xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, 0, flags); in xhci_mem_init()
2494 if (!xhci->cmd_ring) in xhci_mem_init()
2496 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2497 "Allocated command ring at %p", xhci->cmd_ring); in xhci_mem_init()
2498 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "First segment DMA is 0x%pad", in xhci_mem_init()
2499 &xhci->cmd_ring->first_seg->dma); in xhci_mem_init()
2502 val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); in xhci_mem_init()
2504 (xhci->cmd_ring->first_seg->dma & (u64) ~CMD_RING_RSVD_BITS) | in xhci_mem_init()
2505 xhci->cmd_ring->cycle_state; in xhci_mem_init()
2506 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2508 xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring); in xhci_mem_init()
2514 xhci->cmd_ring_reserved_trbs++; in xhci_mem_init()
2516 val = readl(&xhci->cap_regs->db_off); in xhci_mem_init()
2518 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2521 xhci->dba = (void __iomem *) xhci->cap_regs + val; in xhci_mem_init()
2524 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_mem_init()
2526 xhci->interrupters = kcalloc_node(xhci->max_interrupters, sizeof(*xhci->interrupters), in xhci_mem_init()
2529 ir = xhci_alloc_interrupter(xhci, 0, flags); in xhci_mem_init()
2533 if (xhci_add_interrupter(xhci, ir, 0)) in xhci_mem_init()
2536 xhci->isoc_bei_interval = AVOID_BEI_INTERVAL_MAX; in xhci_mem_init()
2544 xhci->devs[i] = NULL; in xhci_mem_init()
2546 if (scratchpad_alloc(xhci, flags)) in xhci_mem_init()
2548 if (xhci_setup_port_arrays(xhci, flags)) in xhci_mem_init()
2555 temp = readl(&xhci->op_regs->dev_notification); in xhci_mem_init()
2558 writel(temp, &xhci->op_regs->dev_notification); in xhci_mem_init()
2563 xhci_halt(xhci); in xhci_mem_init()
2564 xhci_reset(xhci, XHCI_RESET_SHORT_USEC); in xhci_mem_init()
2565 xhci_mem_cleanup(xhci); in xhci_mem_init()
2566 return -ENOMEM; in xhci_mem_init()