From 024426acc0a2707a85faa1983499647649d6d2db Mon Sep 17 00:00:00 2001 From: Gerd Hoffmann Date: Fri, 25 Jan 2013 17:23:44 +0100 Subject: usb-xhci: usb3 streams Add streams support to the xhci emulation. No secondary streams yet, only linear stream arays are supported for now. Signed-off-by: Gerd Hoffmann --- hw/usb/hcd-xhci.c | 268 +++++++++++++++++++++++++++++++++++++++++++++--------- 1 file changed, 223 insertions(+), 45 deletions(-) (limited to 'hw') diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c index b8247f3..5796102 100644 --- a/hw/usb/hcd-xhci.c +++ b/hw/usb/hcd-xhci.c @@ -34,8 +34,8 @@ #else #define DPRINTF(...) do {} while (0) #endif -#define FIXME() do { fprintf(stderr, "FIXME %s:%d\n", \ - __func__, __LINE__); abort(); } while (0) +#define FIXME(_msg) do { fprintf(stderr, "FIXME %s:%d %s\n", \ + __func__, __LINE__, _msg); abort(); } while (0) #define MAXPORTS_2 15 #define MAXPORTS_3 15 @@ -301,6 +301,8 @@ typedef enum TRBCCode { #define SLOT_CONTEXT_ENTRIES_SHIFT 27 typedef struct XHCIState XHCIState; +typedef struct XHCIStreamContext XHCIStreamContext; +typedef struct XHCIEPContext XHCIEPContext; #define get_field(data, field) \ (((data) >> field##_SHIFT) & field##_MASK) @@ -351,6 +353,7 @@ typedef struct XHCITransfer { unsigned int iso_pkts; unsigned int slotid; unsigned int epid; + unsigned int streamid; bool in_xfer; bool iso_xfer; @@ -367,7 +370,14 @@ typedef struct XHCITransfer { uint64_t mfindex_kick; } XHCITransfer; -typedef struct XHCIEPContext { +struct XHCIStreamContext { + dma_addr_t pctx; + unsigned int sct; + XHCIRing ring; + XHCIStreamContext *sstreams; +}; + +struct XHCIEPContext { XHCIState *xhci; unsigned int slotid; unsigned int epid; @@ -382,11 +392,17 @@ typedef struct XHCIEPContext { unsigned int max_psize; uint32_t state; + /* streams */ + unsigned int max_pstreams; + bool lsa; + unsigned int nr_pstreams; + XHCIStreamContext *pstreams; + /* iso xfer scheduling */ unsigned int interval; int64_t mfindex_last; QEMUTimer *kick_timer; -} XHCIEPContext; +}; typedef struct XHCISlot { bool enabled; @@ -482,7 +498,7 @@ enum xhci_flags { }; static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, - unsigned int epid); + unsigned int epid, unsigned int streamid); static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, unsigned int epid); static void xhci_event(XHCIState *xhci, XHCIEvent *event, int v); @@ -1068,18 +1084,116 @@ static void xhci_stop(XHCIState *xhci) xhci->crcr_low &= ~CRCR_CRR; } +static XHCIStreamContext *xhci_alloc_stream_contexts(unsigned count, + dma_addr_t base) +{ + XHCIStreamContext *stctx; + unsigned int i; + + stctx = g_new0(XHCIStreamContext, count); + for (i = 0; i < count; i++) { + stctx[i].pctx = base + i * 16; + stctx[i].sct = -1; + } + return stctx; +} + +static void xhci_reset_streams(XHCIEPContext *epctx) +{ + unsigned int i; + + for (i = 0; i < epctx->nr_pstreams; i++) { + epctx->pstreams[i].sct = -1; + g_free(epctx->pstreams[i].sstreams); + } +} + +static void xhci_alloc_streams(XHCIEPContext *epctx, dma_addr_t base) +{ + assert(epctx->pstreams == NULL); + epctx->nr_pstreams = 2 << epctx->max_pstreams; + epctx->pstreams = xhci_alloc_stream_contexts(epctx->nr_pstreams, base); +} + +static void xhci_free_streams(XHCIEPContext *epctx) +{ + int i; + + assert(epctx->pstreams != NULL); + + if (!epctx->lsa) { + for (i = 0; i < epctx->nr_pstreams; i++) { + g_free(epctx->pstreams[i].sstreams); + } + } + g_free(epctx->pstreams); + epctx->pstreams = NULL; + epctx->nr_pstreams = 0; +} + +static XHCIStreamContext *xhci_find_stream(XHCIEPContext *epctx, + unsigned int streamid, + uint32_t *cc_error) +{ + XHCIStreamContext *sctx; + dma_addr_t base; + uint32_t ctx[2], sct; + + assert(streamid != 0); + if (epctx->lsa) { + if (streamid >= epctx->nr_pstreams) { + *cc_error = CC_INVALID_STREAM_ID_ERROR; + return NULL; + } + sctx = epctx->pstreams + streamid; + } else { + FIXME("secondary streams not implemented yet"); + } + + if (sctx->sct == -1) { + xhci_dma_read_u32s(epctx->xhci, sctx->pctx, ctx, sizeof(ctx)); + fprintf(stderr, "%s: init sctx #%d @ %lx: %08x %08x\n", __func__, + streamid, sctx->pctx, ctx[0], ctx[1]); + sct = (ctx[0] >> 1) & 0x07; + if (epctx->lsa && sct != 1) { + *cc_error = CC_INVALID_STREAM_TYPE_ERROR; + return NULL; + } + sctx->sct = sct; + base = xhci_addr64(ctx[0] & ~0xf, ctx[1]); + xhci_ring_init(epctx->xhci, &sctx->ring, base); + } + return sctx; +} + static void xhci_set_ep_state(XHCIState *xhci, XHCIEPContext *epctx, - uint32_t state) + XHCIStreamContext *sctx, uint32_t state) { uint32_t ctx[5]; + uint32_t ctx2[2]; + fprintf(stderr, "%s: epid %d, state %d\n", + __func__, epctx->epid, state); xhci_dma_read_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); ctx[0] &= ~EP_STATE_MASK; ctx[0] |= state; - ctx[2] = epctx->ring.dequeue | epctx->ring.ccs; - ctx[3] = (epctx->ring.dequeue >> 16) >> 16; - DPRINTF("xhci: set epctx: " DMA_ADDR_FMT " state=%d dequeue=%08x%08x\n", - epctx->pctx, state, ctx[3], ctx[2]); + + /* update ring dequeue ptr */ + if (epctx->nr_pstreams) { + if (sctx != NULL) { + xhci_dma_read_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); + ctx2[0] &= 0xe; + ctx2[0] |= sctx->ring.dequeue | sctx->ring.ccs; + ctx2[1] = (sctx->ring.dequeue >> 16) >> 16; + xhci_dma_write_u32s(xhci, sctx->pctx, ctx2, sizeof(ctx2)); + } + } else { + ctx[2] = epctx->ring.dequeue | epctx->ring.ccs; + ctx[3] = (epctx->ring.dequeue >> 16) >> 16; + DPRINTF("xhci: set epctx: " DMA_ADDR_FMT " state=%d dequeue=%08x%08x\n", + epctx->pctx, state, ctx[3], ctx[2]); + } + xhci_dma_write_u32s(xhci, epctx->pctx, ctx, sizeof(ctx)); epctx->state = state; } @@ -1087,7 +1201,7 @@ static void xhci_set_ep_state(XHCIState *xhci, XHCIEPContext *epctx, static void xhci_ep_kick_timer(void *opaque) { XHCIEPContext *epctx = opaque; - xhci_kick_ep(epctx->xhci, epctx->slotid, epctx->epid); + xhci_kick_ep(epctx->xhci, epctx->slotid, epctx->epid, 0); } static TRBCCode xhci_enable_ep(XHCIState *xhci, unsigned int slotid, @@ -1117,16 +1231,22 @@ static TRBCCode xhci_enable_ep(XHCIState *xhci, unsigned int slotid, slot->eps[epid-1] = epctx; dequeue = xhci_addr64(ctx[2] & ~0xf, ctx[3]); - xhci_ring_init(xhci, &epctx->ring, dequeue); - epctx->ring.ccs = ctx[2] & 1; epctx->type = (ctx[1] >> EP_TYPE_SHIFT) & EP_TYPE_MASK; DPRINTF("xhci: endpoint %d.%d type is %d\n", epid/2, epid%2, epctx->type); epctx->pctx = pctx; epctx->max_psize = ctx[1]>>16; epctx->max_psize *= 1+((ctx[1]>>8)&0xff); + epctx->max_pstreams = (ctx[0] >> 10) & 0xf; + epctx->lsa = (ctx[0] >> 15) & 1; DPRINTF("xhci: endpoint %d.%d max transaction (burst) size is %d\n", epid/2, epid%2, epctx->max_psize); + if (epctx->max_pstreams) { + xhci_alloc_streams(epctx, dequeue); + } else { + xhci_ring_init(xhci, &epctx->ring, dequeue); + epctx->ring.ccs = ctx[2] & 1; + } for (i = 0; i < ARRAY_SIZE(epctx->transfers); i++) { usb_packet_init(&epctx->transfers[i].packet); } @@ -1227,7 +1347,11 @@ static TRBCCode xhci_disable_ep(XHCIState *xhci, unsigned int slotid, epctx = slot->eps[epid-1]; - xhci_set_ep_state(xhci, epctx, EP_DISABLED); + if (epctx->nr_pstreams) { + xhci_free_streams(epctx); + } + + xhci_set_ep_state(xhci, epctx, NULL, EP_DISABLED); qemu_free_timer(epctx->kick_timer); g_free(epctx); @@ -1264,7 +1388,11 @@ static TRBCCode xhci_stop_ep(XHCIState *xhci, unsigned int slotid, epctx = slot->eps[epid-1]; - xhci_set_ep_state(xhci, epctx, EP_STOPPED); + xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); + + if (epctx->nr_pstreams) { + xhci_reset_streams(epctx); + } return CC_SUCCESS; } @@ -1315,16 +1443,22 @@ static TRBCCode xhci_reset_ep(XHCIState *xhci, unsigned int slotid, return CC_USB_TRANSACTION_ERROR; } - xhci_set_ep_state(xhci, epctx, EP_STOPPED); + xhci_set_ep_state(xhci, epctx, NULL, EP_STOPPED); + + if (epctx->nr_pstreams) { + xhci_reset_streams(epctx); + } return CC_SUCCESS; } static TRBCCode xhci_set_ep_dequeue(XHCIState *xhci, unsigned int slotid, - unsigned int epid, uint64_t pdequeue) + unsigned int epid, unsigned int streamid, + uint64_t pdequeue) { XHCISlot *slot; XHCIEPContext *epctx; + XHCIStreamContext *sctx; dma_addr_t dequeue; assert(slotid >= 1 && slotid <= xhci->numslots); @@ -1334,7 +1468,7 @@ static TRBCCode xhci_set_ep_dequeue(XHCIState *xhci, unsigned int slotid, return CC_TRB_ERROR; } - trace_usb_xhci_ep_set_dequeue(slotid, epid, pdequeue); + trace_usb_xhci_ep_set_dequeue(slotid, epid, streamid, pdequeue); dequeue = xhci_mask64(pdequeue); slot = &xhci->slots[slotid-1]; @@ -1346,16 +1480,26 @@ static TRBCCode xhci_set_ep_dequeue(XHCIState *xhci, unsigned int slotid, epctx = slot->eps[epid-1]; - if (epctx->state != EP_STOPPED) { fprintf(stderr, "xhci: set EP dequeue pointer while EP %d not stopped\n", epid); return CC_CONTEXT_STATE_ERROR; } - xhci_ring_init(xhci, &epctx->ring, dequeue & ~0xF); - epctx->ring.ccs = dequeue & 1; + if (epctx->nr_pstreams) { + uint32_t err; + sctx = xhci_find_stream(epctx, streamid, &err); + if (sctx == NULL) { + return err; + } + xhci_ring_init(xhci, &sctx->ring, dequeue & ~0xf); + sctx->ring.ccs = dequeue & 1; + } else { + sctx = NULL; + xhci_ring_init(xhci, &epctx->ring, dequeue & ~0xF); + epctx->ring.ccs = dequeue & 1; + } - xhci_set_ep_state(xhci, epctx, EP_STOPPED); + xhci_set_ep_state(xhci, epctx, sctx, EP_STOPPED); return CC_SUCCESS; } @@ -1484,12 +1628,22 @@ static void xhci_stall_ep(XHCITransfer *xfer) XHCIState *xhci = xfer->xhci; XHCISlot *slot = &xhci->slots[xfer->slotid-1]; XHCIEPContext *epctx = slot->eps[xfer->epid-1]; + uint32_t err; + XHCIStreamContext *sctx; - epctx->ring.dequeue = xfer->trbs[0].addr; - epctx->ring.ccs = xfer->trbs[0].ccs; - xhci_set_ep_state(xhci, epctx, EP_HALTED); - DPRINTF("xhci: stalled slot %d ep %d\n", xfer->slotid, xfer->epid); - DPRINTF("xhci: will continue at "DMA_ADDR_FMT"\n", epctx->ring.dequeue); + if (epctx->nr_pstreams) { + sctx = xhci_find_stream(epctx, xfer->streamid, &err); + if (sctx == NULL) { + return; + } + sctx->ring.dequeue = xfer->trbs[0].addr; + sctx->ring.ccs = xfer->trbs[0].ccs; + xhci_set_ep_state(xhci, epctx, sctx, EP_HALTED); + } else { + epctx->ring.dequeue = xfer->trbs[0].addr; + epctx->ring.ccs = xfer->trbs[0].ccs; + xhci_set_ep_state(xhci, epctx, NULL, EP_HALTED); + } } static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, @@ -1518,7 +1672,7 @@ static int xhci_setup_packet(XHCITransfer *xfer) } xhci_xfer_create_sgl(xfer, dir == USB_TOKEN_IN); /* Also sets int_req */ - usb_packet_setup(&xfer->packet, dir, ep, 0, + usb_packet_setup(&xfer->packet, dir, ep, xfer->streamid, xfer->trbs[0].addr, false, xfer->int_req); usb_packet_map(&xfer->packet, &xfer->sgl); DPRINTF("xhci: setup packet pid 0x%x addr %d ep %d\n", @@ -1572,7 +1726,7 @@ static int xhci_complete_packet(XHCITransfer *xfer) default: fprintf(stderr, "%s: FIXME: status = %d\n", __func__, xfer->packet.status); - FIXME(); + FIXME("unhandled USB_RET_*"); } return 0; } @@ -1585,7 +1739,7 @@ static int xhci_fire_ctl_transfer(XHCIState *xhci, XHCITransfer *xfer) trb_setup = &xfer->trbs[0]; trb_status = &xfer->trbs[xfer->trb_count-1]; - trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid); + trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid, xfer->streamid); /* at most one Event Data TRB allowed after STATUS */ if (TRB_TYPE(*trb_status) == TR_EVDATA && xfer->trb_count > 2) { @@ -1627,7 +1781,7 @@ static int xhci_fire_ctl_transfer(XHCIState *xhci, XHCITransfer *xfer) xhci_complete_packet(xfer); if (!xfer->running_async && !xfer->running_retry) { - xhci_kick_ep(xhci, xfer->slotid, xfer->epid); + xhci_kick_ep(xhci, xfer->slotid, xfer->epid, 0); } return 0; } @@ -1710,26 +1864,29 @@ static int xhci_submit(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx xhci_complete_packet(xfer); if (!xfer->running_async && !xfer->running_retry) { - xhci_kick_ep(xhci, xfer->slotid, xfer->epid); + xhci_kick_ep(xhci, xfer->slotid, xfer->epid, xfer->streamid); } return 0; } static int xhci_fire_transfer(XHCIState *xhci, XHCITransfer *xfer, XHCIEPContext *epctx) { - trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid); + trace_usb_xhci_xfer_start(xfer, xfer->slotid, xfer->epid, xfer->streamid); return xhci_submit(xhci, xfer, epctx); } -static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, unsigned int epid) +static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, + unsigned int epid, unsigned int streamid) { + XHCIStreamContext *stctx; XHCIEPContext *epctx; + XHCIRing *ring; USBEndpoint *ep = NULL; uint64_t mfindex; int length; int i; - trace_usb_xhci_ep_kick(slotid, epid); + trace_usb_xhci_ep_kick(slotid, epid, streamid); assert(slotid >= 1 && slotid <= xhci->numslots); assert(epid >= 1 && epid <= 31); @@ -1782,14 +1939,28 @@ static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, unsigned int epid return; } - xhci_set_ep_state(xhci, epctx, EP_RUNNING); + + if (epctx->nr_pstreams) { + uint32_t err; + stctx = xhci_find_stream(epctx, streamid, &err); + if (stctx == NULL) { + return; + } + ring = &stctx->ring; + xhci_set_ep_state(xhci, epctx, stctx, EP_RUNNING); + } else { + ring = &epctx->ring; + streamid = 0; + xhci_set_ep_state(xhci, epctx, NULL, EP_RUNNING); + } + assert(ring->base != 0); while (1) { XHCITransfer *xfer = &epctx->transfers[epctx->next_xfer]; if (xfer->running_async || xfer->running_retry) { break; } - length = xhci_ring_chain_length(xhci, &epctx->ring); + length = xhci_ring_chain_length(xhci, ring); if (length < 0) { break; } else if (length == 0) { @@ -1808,11 +1979,12 @@ static void xhci_kick_ep(XHCIState *xhci, unsigned int slotid, unsigned int epid xfer->trb_count = length; for (i = 0; i < length; i++) { - assert(xhci_ring_fetch(xhci, &epctx->ring, &xfer->trbs[i], NULL)); + assert(xhci_ring_fetch(xhci, ring, &xfer->trbs[i], NULL)); } xfer->xhci = xhci; xfer->epid = epid; xfer->slotid = slotid; + xfer->streamid = streamid; if (epid == 1) { if (xhci_fire_ctl_transfer(xhci, xfer) >= 0) { @@ -2357,11 +2529,14 @@ static void xhci_process_commands(XHCIState *xhci) } break; case CR_SET_TR_DEQUEUE: + fprintf(stderr, "%s: CR_SET_TR_DEQUEUE\n", __func__); slotid = xhci_get_slot(xhci, &event, &trb); if (slotid) { unsigned int epid = (trb.control >> TRB_CR_EPID_SHIFT) & TRB_CR_EPID_MASK; - event.ccode = xhci_set_ep_dequeue(xhci, slotid, epid, + unsigned int streamid = (trb.status >> 16) & 0xffff; + event.ccode = xhci_set_ep_dequeue(xhci, slotid, + epid, streamid, trb.parameter); } break; @@ -2554,9 +2729,9 @@ static uint64_t xhci_cap_read(void *ptr, hwaddr reg, unsigned size) break; case 0x10: /* HCCPARAMS */ if (sizeof(dma_addr_t) == 4) { - ret = 0x00081000; + ret = 0x00087000; } else { - ret = 0x00081001; + ret = 0x00087001; } break; case 0x14: /* DBOFF */ @@ -2880,6 +3055,7 @@ static void xhci_doorbell_write(void *ptr, hwaddr reg, uint64_t val, unsigned size) { XHCIState *xhci = ptr; + unsigned int epid, streamid; trace_usb_xhci_doorbell_write(reg, val); @@ -2898,13 +3074,15 @@ static void xhci_doorbell_write(void *ptr, hwaddr reg, (uint32_t)val); } } else { + epid = val & 0xff; + streamid = (val >> 16) & 0xffff; if (reg > xhci->numslots) { fprintf(stderr, "xhci: bad doorbell %d\n", (int)reg); - } else if (val > 31) { + } else if (epid > 31) { fprintf(stderr, "xhci: bad doorbell %d write: 0x%x\n", (int)reg, (uint32_t)val); } else { - xhci_kick_ep(xhci, reg, val); + xhci_kick_ep(xhci, reg, epid, streamid); } } } @@ -2988,7 +3166,7 @@ static void xhci_complete(USBPort *port, USBPacket *packet) return; } xhci_complete_packet(xfer); - xhci_kick_ep(xfer->xhci, xfer->slotid, xfer->epid); + xhci_kick_ep(xfer->xhci, xfer->slotid, xfer->epid, xfer->streamid); } static void xhci_child_detach(USBPort *uport, USBDevice *child) @@ -3045,7 +3223,7 @@ static void xhci_wakeup_endpoint(USBBus *bus, USBEndpoint *ep, DPRINTF("%s: oops, no slot for dev %d\n", __func__, ep->dev->addr); return; } - xhci_kick_ep(xhci, slotid, xhci_find_epid(ep)); + xhci_kick_ep(xhci, slotid, xhci_find_epid(ep), stream); } static USBBusOps xhci_bus_ops = { -- cgit v1.1