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DM USB: xHCI: rename some variables about ERST
This patch only changes some names of varaibles about Event Ring Segement Table (ERST), and doesn't modify any code logic. Tracked-On: #3628 Signed-off-by: Xiaoguang Wu <xiaoguang.wu@intel.com> Acked-by: Yu Wang <yu1.wang@intel.com>
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@ -256,7 +256,7 @@ struct pci_xhci_rtsregs {
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} intrreg __attribute__((packed));
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/* guest mapped addresses */
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struct xhci_event_ring_seg *erstba_p;
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struct xhci_erst *erstba_p;
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struct xhci_trb *erst_p; /* event ring segment tbl */
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int er_deq_seg; /* event ring dequeue segment */
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int er_enq_idx; /* event ring enqueue index - xHCI */
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@ -1796,7 +1796,7 @@ pci_xhci_insert_event(struct pci_xhci_vdev *xdev,
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rts = &xdev->rtsregs;
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erdp = rts->intrreg.erdp & ~0xF;
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erdp_idx = (erdp - rts->erstba_p[rts->er_deq_seg].qwEvrsTablePtr) /
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erdp_idx = (erdp - rts->erstba_p[rts->er_deq_seg].qwRingSegBase) /
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sizeof(struct xhci_trb);
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UPRINTF(LDBG, "insert event 0[%lx] 2[%x] 3[%x]\r\n"
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@ -1805,20 +1805,20 @@ pci_xhci_insert_event(struct pci_xhci_vdev *xdev,
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evtrb->qwTrb0, evtrb->dwTrb2, evtrb->dwTrb3,
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erdp_idx, rts->er_deq_seg, rts->er_enq_idx,
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rts->er_enq_seg,
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rts->event_pcs, erdp, rts->erstba_p->qwEvrsTablePtr,
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rts->erstba_p->dwEvrsTableSize, do_intr);
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rts->event_pcs, erdp, rts->erstba_p->qwRingSegBase,
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rts->erstba_p->dwRingSegSize, do_intr);
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evtrbptr = &rts->erst_p[rts->er_enq_idx];
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/* TODO: multi-segment table */
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if (rts->er_events_cnt >= rts->erstba_p->dwEvrsTableSize) {
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if (rts->er_events_cnt >= rts->erstba_p->dwRingSegSize) {
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UPRINTF(LWRN, "[%d] cannot insert event; ring full\r\n",
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__LINE__);
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err = XHCI_TRB_ERROR_EV_RING_FULL;
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goto done;
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}
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if (rts->er_events_cnt == rts->erstba_p->dwEvrsTableSize - 1) {
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if (rts->er_events_cnt == rts->erstba_p->dwRingSegSize - 1) {
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struct xhci_trb errev;
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if ((evtrbptr->dwTrb3 & 0x1) == (rts->event_pcs & 0x1)) {
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@ -1836,7 +1836,7 @@ pci_xhci_insert_event(struct pci_xhci_vdev *xdev,
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memcpy(&rts->erst_p[rts->er_enq_idx], &errev,
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sizeof(struct xhci_trb));
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rts->er_enq_idx = (rts->er_enq_idx + 1) %
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rts->erstba_p->dwEvrsTableSize;
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rts->erstba_p->dwRingSegSize;
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err = XHCI_TRB_ERROR_EV_RING_FULL;
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do_intr = 1;
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@ -1851,7 +1851,7 @@ pci_xhci_insert_event(struct pci_xhci_vdev *xdev,
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memcpy(&rts->erst_p[rts->er_enq_idx], evtrb, sizeof(struct xhci_trb));
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rts->er_enq_idx = (rts->er_enq_idx + 1) %
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rts->erstba_p->dwEvrsTableSize;
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rts->erstba_p->dwRingSegSize;
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if (rts->er_enq_idx == 0)
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rts->event_pcs ^= 1;
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@ -3358,12 +3358,12 @@ pci_xhci_rtsregs_write(struct pci_xhci_vdev *xdev,
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~0x3FUL);
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rts->erst_p = XHCI_GADDR(xdev,
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xdev->rtsregs.erstba_p->qwEvrsTablePtr & ~0x3FUL);
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xdev->rtsregs.erstba_p->qwRingSegBase & ~0x3FUL);
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UPRINTF(LDBG, "wr erstba erst (%p) ptr 0x%lx, sz %u\r\n",
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rts->erstba_p,
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rts->erstba_p->qwEvrsTablePtr,
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rts->erstba_p->dwEvrsTableSize);
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rts->erstba_p->qwRingSegBase,
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rts->erstba_p->dwRingSegSize);
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break;
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case 0x18:
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@ -3390,14 +3390,14 @@ pci_xhci_rtsregs_write(struct pci_xhci_vdev *xdev,
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uint32_t erdp_i;
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erdp = rts->intrreg.erdp & ~0xF;
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erdp_i = (erdp - rts->erstba_p->qwEvrsTablePtr) /
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erdp_i = (erdp - rts->erstba_p->qwRingSegBase) /
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sizeof(struct xhci_trb);
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if (erdp_i <= rts->er_enq_idx)
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rts->er_events_cnt = rts->er_enq_idx - erdp_i;
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else
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rts->er_events_cnt =
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rts->erstba_p->dwEvrsTableSize -
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rts->erstba_p->dwRingSegSize -
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(erdp_i - rts->er_enq_idx);
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UPRINTF(LDBG, "erdp 0x%lx, events cnt %u\r\n",
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@ -399,10 +399,11 @@ struct xhci_dev_endpoint_trbs {
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XHCI_MAX_TRANSFERS) + XHCI_MAX_STREAMS];
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};
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struct xhci_event_ring_seg {
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volatile uint64_t qwEvrsTablePtr;
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volatile uint32_t dwEvrsTableSize;
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volatile uint32_t dwEvrsReserved;
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struct xhci_erst {
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volatile uint64_t qwRingSegBase;
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volatile uint32_t dwRingSegSize;
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volatile uint32_t dwRingSegRsv;
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};
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#endif /* _XHCI_H_ */
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