Lines Matching full:xhci
3 * xHCI host controller driver
22 #include "xhci.h"
23 #include "xhci-trace.h"
24 #include "xhci-debugfs.h"
25 #include "xhci-dbgcap.h"
89 int xhci_handshake_check_state(struct xhci_hcd *xhci, void __iomem *ptr, in xhci_handshake_check_state() argument
98 xhci->xhc_state & exit_state, in xhci_handshake_check_state()
101 if (result == U32_MAX || xhci->xhc_state & exit_state) in xhci_handshake_check_state()
108 * Disable interrupts and begin the xHCI halting process.
110 void xhci_quiesce(struct xhci_hcd *xhci) in xhci_quiesce() argument
117 halted = readl(&xhci->op_regs->status) & STS_HALT; in xhci_quiesce()
121 cmd = readl(&xhci->op_regs->command); in xhci_quiesce()
123 writel(cmd, &xhci->op_regs->command); in xhci_quiesce()
134 int xhci_halt(struct xhci_hcd *xhci) in xhci_halt() argument
138 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Halt the HC"); in xhci_halt()
139 xhci_quiesce(xhci); in xhci_halt()
141 ret = xhci_handshake(&xhci->op_regs->status, in xhci_halt()
144 xhci_warn(xhci, "Host halt failed, %d\n", ret); in xhci_halt()
148 xhci->xhc_state |= XHCI_STATE_HALTED; in xhci_halt()
149 xhci->cmd_ring_state = CMD_RING_STATE_STOPPED; in xhci_halt()
157 int xhci_start(struct xhci_hcd *xhci) in xhci_start() argument
162 temp = readl(&xhci->op_regs->command); in xhci_start()
164 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Turn on HC, cmd = 0x%x.", in xhci_start()
166 writel(temp, &xhci->op_regs->command); in xhci_start()
172 ret = xhci_handshake(&xhci->op_regs->status, in xhci_start()
175 xhci_err(xhci, "Host took too long to start, " in xhci_start()
180 xhci->xhc_state = 0; in xhci_start()
181 xhci->run_graceperiod = jiffies + msecs_to_jiffies(500); in xhci_start()
194 int xhci_reset(struct xhci_hcd *xhci, u64 timeout_us) in xhci_reset() argument
200 state = readl(&xhci->op_regs->status); in xhci_reset()
203 xhci_warn(xhci, "Host not accessible, reset failed.\n"); in xhci_reset()
208 xhci_warn(xhci, "Host controller not halted, aborting reset.\n"); in xhci_reset()
212 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "// Reset the HC"); in xhci_reset()
213 command = readl(&xhci->op_regs->command); in xhci_reset()
215 writel(command, &xhci->op_regs->command); in xhci_reset()
217 /* Existing Intel xHCI controllers require a delay of 1 mS, in xhci_reset()
224 if (xhci->quirks & XHCI_INTEL_HOST) in xhci_reset()
227 ret = xhci_handshake_check_state(xhci, &xhci->op_regs->command, in xhci_reset()
232 if (xhci->quirks & XHCI_ASMEDIA_MODIFY_FLOWCONTROL) in xhci_reset()
233 usb_asmedia_modifyflowcontrol(to_pci_dev(xhci_to_hcd(xhci)->self.controller)); in xhci_reset()
235 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_reset()
238 * xHCI cannot write to any doorbells or operational registers other in xhci_reset()
241 ret = xhci_handshake(&xhci->op_regs->status, STS_CNR, 0, timeout_us); in xhci_reset()
243 xhci->usb2_rhub.bus_state.port_c_suspend = 0; in xhci_reset()
244 xhci->usb2_rhub.bus_state.suspended_ports = 0; in xhci_reset()
245 xhci->usb2_rhub.bus_state.resuming_ports = 0; in xhci_reset()
246 xhci->usb3_rhub.bus_state.port_c_suspend = 0; in xhci_reset()
247 xhci->usb3_rhub.bus_state.suspended_ports = 0; in xhci_reset()
248 xhci->usb3_rhub.bus_state.resuming_ports = 0; in xhci_reset()
253 static void xhci_zero_64b_regs(struct xhci_hcd *xhci) in xhci_zero_64b_regs() argument
255 struct device *dev = xhci_to_hcd(xhci)->self.sysdev; in xhci_zero_64b_regs()
276 if (!(xhci->quirks & XHCI_ZERO_64B_REGS) || !domain || in xhci_zero_64b_regs()
280 xhci_info(xhci, "Zeroing 64bit base registers, expecting fault\n"); in xhci_zero_64b_regs()
283 val = readl(&xhci->op_regs->command); in xhci_zero_64b_regs()
285 writel(val, &xhci->op_regs->command); in xhci_zero_64b_regs()
288 val = readl(&xhci->op_regs->status); in xhci_zero_64b_regs()
290 writel(val, &xhci->op_regs->status); in xhci_zero_64b_regs()
293 val = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); in xhci_zero_64b_regs()
295 xhci_write_64(xhci, 0, &xhci->op_regs->dcbaa_ptr); in xhci_zero_64b_regs()
296 val = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); in xhci_zero_64b_regs()
298 xhci_write_64(xhci, 0, &xhci->op_regs->cmd_ring); in xhci_zero_64b_regs()
300 intrs = min_t(u32, HCS_MAX_INTRS(xhci->hcs_params1), in xhci_zero_64b_regs()
301 ARRAY_SIZE(xhci->run_regs->ir_set)); in xhci_zero_64b_regs()
306 ir = &xhci->run_regs->ir_set[i]; in xhci_zero_64b_regs()
307 val = xhci_read_64(xhci, &ir->erst_base); in xhci_zero_64b_regs()
309 xhci_write_64(xhci, 0, &ir->erst_base); in xhci_zero_64b_regs()
310 val= xhci_read_64(xhci, &ir->erst_dequeue); in xhci_zero_64b_regs()
312 xhci_write_64(xhci, 0, &ir->erst_dequeue); in xhci_zero_64b_regs()
316 err = xhci_handshake(&xhci->op_regs->status, in xhci_zero_64b_regs()
320 xhci_info(xhci, "Fault detected\n"); in xhci_zero_64b_regs()
368 struct xhci_hcd *xhci; in compliance_mode_recovery() local
374 xhci = from_timer(xhci, t, comp_mode_recovery_timer); in compliance_mode_recovery()
375 rhub = &xhci->usb3_rhub; in compliance_mode_recovery()
388 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in compliance_mode_recovery()
391 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in compliance_mode_recovery()
401 if (xhci->port_status_u0 != ((1 << rhub->num_ports) - 1)) in compliance_mode_recovery()
402 mod_timer(&xhci->comp_mode_recovery_timer, in compliance_mode_recovery()
413 * status event is generated when entering compliance mode (per xhci spec),
416 static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci) in compliance_mode_recovery_timer_init() argument
418 xhci->port_status_u0 = 0; in compliance_mode_recovery_timer_init()
419 timer_setup(&xhci->comp_mode_recovery_timer, compliance_mode_recovery, in compliance_mode_recovery_timer_init()
421 xhci->comp_mode_recovery_timer.expires = jiffies + in compliance_mode_recovery_timer_init()
424 add_timer(&xhci->comp_mode_recovery_timer); in compliance_mode_recovery_timer_init()
425 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in compliance_mode_recovery_timer_init()
456 static int xhci_all_ports_seen_u0(struct xhci_hcd *xhci) in xhci_all_ports_seen_u0() argument
458 return (xhci->port_status_u0 == ((1 << xhci->usb3_rhub.num_ports) - 1)); in xhci_all_ports_seen_u0()
471 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_init() local
474 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_init"); in xhci_init()
475 spin_lock_init(&xhci->lock); in xhci_init()
476 if (xhci->hci_version == 0x95 && link_quirk) { in xhci_init()
477 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_init()
479 xhci->quirks |= XHCI_LINK_TRB_QUIRK; in xhci_init()
481 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_init()
482 "xHCI doesn't need link TRB QUIRK"); in xhci_init()
484 retval = xhci_mem_init(xhci, GFP_KERNEL); in xhci_init()
485 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Finished xhci_init"); in xhci_init()
489 xhci->quirks |= XHCI_COMP_MODE_QUIRK; in xhci_init()
490 compliance_mode_recovery_timer_init(xhci); in xhci_init()
498 static int xhci_run_finished(struct xhci_hcd *xhci) in xhci_run_finished() argument
500 struct xhci_interrupter *ir = xhci->interrupters[0]; in xhci_run_finished()
505 * Enable interrupts before starting the host (xhci 4.2 and 5.5.2). in xhci_run_finished()
508 spin_lock_irqsave(&xhci->lock, flags); in xhci_run_finished()
510 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Enable interrupts"); in xhci_run_finished()
511 temp = readl(&xhci->op_regs->command); in xhci_run_finished()
513 writel(temp, &xhci->op_regs->command); in xhci_run_finished()
515 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "Enable primary interrupter"); in xhci_run_finished()
518 if (xhci_start(xhci)) { in xhci_run_finished()
519 xhci_halt(xhci); in xhci_run_finished()
520 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_run_finished()
524 xhci->cmd_ring_state = CMD_RING_STATE_RUNNING; in xhci_run_finished()
526 if (xhci->quirks & XHCI_NEC_HOST) in xhci_run_finished()
527 xhci_ring_cmd_db(xhci); in xhci_run_finished()
529 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_run_finished()
550 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_run() local
551 struct xhci_interrupter *ir = xhci->interrupters[0]; in xhci_run()
552 /* Start the xHCI host controller running only after the USB 2.0 roothub in xhci_run()
561 return xhci_run_finished(xhci); in xhci_run()
563 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "xhci_run"); in xhci_run()
565 temp_64 = xhci_read_64(xhci, &ir->ir_set->erst_dequeue); in xhci_run()
567 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_run()
570 xhci_set_interrupter_moderation(ir, xhci->imod_interval); in xhci_run()
572 if (xhci->quirks & XHCI_NEC_HOST) { in xhci_run()
575 command = xhci_alloc_command(xhci, false, GFP_KERNEL); in xhci_run()
579 ret = xhci_queue_vendor_command(xhci, command, 0, 0, 0, in xhci_run()
582 xhci_free_command(xhci, command); in xhci_run()
584 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_run()
587 xhci_create_dbc_dev(xhci); in xhci_run()
589 xhci_debugfs_init(xhci); in xhci_run()
591 if (xhci_has_one_roothub(xhci)) in xhci_run()
592 return xhci_run_finished(xhci); in xhci_run()
601 * Stop xHCI driver.
612 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_stop() local
613 struct xhci_interrupter *ir = xhci->interrupters[0]; in xhci_stop()
615 mutex_lock(&xhci->mutex); in xhci_stop()
619 mutex_unlock(&xhci->mutex); in xhci_stop()
623 xhci_remove_dbc_dev(xhci); in xhci_stop()
625 spin_lock_irq(&xhci->lock); in xhci_stop()
626 xhci->xhc_state |= XHCI_STATE_HALTED; in xhci_stop()
627 xhci->cmd_ring_state = CMD_RING_STATE_STOPPED; in xhci_stop()
628 xhci_halt(xhci); in xhci_stop()
629 xhci_reset(xhci, XHCI_RESET_SHORT_USEC); in xhci_stop()
630 spin_unlock_irq(&xhci->lock); in xhci_stop()
633 if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && in xhci_stop()
634 (!(xhci_all_ports_seen_u0(xhci)))) { in xhci_stop()
635 del_timer_sync(&xhci->comp_mode_recovery_timer); in xhci_stop()
636 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_stop()
641 if (xhci->quirks & XHCI_AMD_PLL_FIX) in xhci_stop()
644 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_stop()
646 temp = readl(&xhci->op_regs->status); in xhci_stop()
647 writel((temp & ~0x1fff) | STS_EINT, &xhci->op_regs->status); in xhci_stop()
650 xhci_dbg_trace(xhci, trace_xhci_dbg_init, "cleaning up memory"); in xhci_stop()
651 xhci_mem_cleanup(xhci); in xhci_stop()
652 xhci_debugfs_exit(xhci); in xhci_stop()
653 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_stop()
655 readl(&xhci->op_regs->status)); in xhci_stop()
656 mutex_unlock(&xhci->mutex); in xhci_stop()
671 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_shutdown() local
673 if (xhci->quirks & XHCI_SPURIOUS_REBOOT) in xhci_shutdown()
677 xhci_dbg(xhci, "%s: stopping usb%d port polling.\n", in xhci_shutdown()
682 if (xhci->shared_hcd) { in xhci_shutdown()
683 clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); in xhci_shutdown()
684 del_timer_sync(&xhci->shared_hcd->rh_timer); in xhci_shutdown()
687 spin_lock_irq(&xhci->lock); in xhci_shutdown()
688 xhci_halt(xhci); in xhci_shutdown()
694 if (xhci->quirks & XHCI_SPURIOUS_WAKEUP || in xhci_shutdown()
695 xhci->quirks & XHCI_RESET_TO_DEFAULT) in xhci_shutdown()
696 xhci_reset(xhci, XHCI_RESET_SHORT_USEC); in xhci_shutdown()
698 spin_unlock_irq(&xhci->lock); in xhci_shutdown()
700 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_shutdown()
702 readl(&xhci->op_regs->status)); in xhci_shutdown()
707 static void xhci_save_registers(struct xhci_hcd *xhci) in xhci_save_registers() argument
712 xhci->s3.command = readl(&xhci->op_regs->command); in xhci_save_registers()
713 xhci->s3.dev_nt = readl(&xhci->op_regs->dev_notification); in xhci_save_registers()
714 xhci->s3.dcbaa_ptr = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); in xhci_save_registers()
715 xhci->s3.config_reg = readl(&xhci->op_regs->config_reg); in xhci_save_registers()
719 for (i = 0; i < xhci->max_interrupters; i++) { in xhci_save_registers()
720 ir = xhci->interrupters[i]; in xhci_save_registers()
725 ir->s3_erst_base = xhci_read_64(xhci, &ir->ir_set->erst_base); in xhci_save_registers()
726 ir->s3_erst_dequeue = xhci_read_64(xhci, &ir->ir_set->erst_dequeue); in xhci_save_registers()
732 static void xhci_restore_registers(struct xhci_hcd *xhci) in xhci_restore_registers() argument
737 writel(xhci->s3.command, &xhci->op_regs->command); in xhci_restore_registers()
738 writel(xhci->s3.dev_nt, &xhci->op_regs->dev_notification); in xhci_restore_registers()
739 xhci_write_64(xhci, xhci->s3.dcbaa_ptr, &xhci->op_regs->dcbaa_ptr); in xhci_restore_registers()
740 writel(xhci->s3.config_reg, &xhci->op_regs->config_reg); in xhci_restore_registers()
743 for (i = 0; i < xhci->max_interrupters; i++) { in xhci_restore_registers()
744 ir = xhci->interrupters[i]; in xhci_restore_registers()
749 xhci_write_64(xhci, ir->s3_erst_base, &ir->ir_set->erst_base); in xhci_restore_registers()
750 xhci_write_64(xhci, ir->s3_erst_dequeue, &ir->ir_set->erst_dequeue); in xhci_restore_registers()
756 static void xhci_set_cmd_ring_deq(struct xhci_hcd *xhci) in xhci_set_cmd_ring_deq() argument
761 val_64 = xhci_read_64(xhci, &xhci->op_regs->cmd_ring); in xhci_set_cmd_ring_deq()
763 (xhci_trb_virt_to_dma(xhci->cmd_ring->deq_seg, in xhci_set_cmd_ring_deq()
764 xhci->cmd_ring->dequeue) & in xhci_set_cmd_ring_deq()
766 xhci->cmd_ring->cycle_state; in xhci_set_cmd_ring_deq()
767 xhci_dbg_trace(xhci, trace_xhci_dbg_init, in xhci_set_cmd_ring_deq()
770 xhci_write_64(xhci, val_64, &xhci->op_regs->cmd_ring); in xhci_set_cmd_ring_deq()
782 static void xhci_clear_command_ring(struct xhci_hcd *xhci) in xhci_clear_command_ring() argument
787 ring = xhci->cmd_ring; in xhci_clear_command_ring()
805 xhci_set_cmd_ring_deq(xhci); in xhci_clear_command_ring()
813 * Internal wake causes immediate xHCI wake after suspend. PORT_CSC write done
817 static void xhci_disable_hub_port_wake(struct xhci_hcd *xhci, in xhci_disable_hub_port_wake() argument
825 spin_lock_irqsave(&xhci->lock, flags); in xhci_disable_hub_port_wake()
842 xhci_dbg(xhci, "config port %d-%d wake bits, portsc: 0x%x, write: 0x%x\n", in xhci_disable_hub_port_wake()
846 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_disable_hub_port_wake()
849 static bool xhci_pending_portevent(struct xhci_hcd *xhci) in xhci_pending_portevent() argument
856 status = readl(&xhci->op_regs->status); in xhci_pending_portevent()
862 * being written to the Event Ring. See note in xhci 1.1 section 4.19.2. in xhci_pending_portevent()
865 port_index = xhci->usb2_rhub.num_ports; in xhci_pending_portevent()
866 ports = xhci->usb2_rhub.ports; in xhci_pending_portevent()
873 port_index = xhci->usb3_rhub.num_ports; in xhci_pending_portevent()
874 ports = xhci->usb3_rhub.ports; in xhci_pending_portevent()
890 int xhci_suspend(struct xhci_hcd *xhci, bool do_wakeup) in xhci_suspend() argument
894 struct usb_hcd *hcd = xhci_to_hcd(xhci); in xhci_suspend()
902 (xhci->shared_hcd && xhci->shared_hcd->state != HC_STATE_SUSPENDED)) in xhci_suspend()
906 xhci_disable_hub_port_wake(xhci, &xhci->usb3_rhub, do_wakeup); in xhci_suspend()
907 xhci_disable_hub_port_wake(xhci, &xhci->usb2_rhub, do_wakeup); in xhci_suspend()
912 xhci_dbc_suspend(xhci); in xhci_suspend()
915 xhci_dbg(xhci, "%s: stopping usb%d port polling.\n", in xhci_suspend()
919 if (xhci->shared_hcd) { in xhci_suspend()
920 clear_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); in xhci_suspend()
921 del_timer_sync(&xhci->shared_hcd->rh_timer); in xhci_suspend()
924 if (xhci->quirks & XHCI_SUSPEND_DELAY) in xhci_suspend()
927 spin_lock_irq(&xhci->lock); in xhci_suspend()
929 if (xhci->shared_hcd) in xhci_suspend()
930 clear_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags); in xhci_suspend()
935 command = readl(&xhci->op_regs->command); in xhci_suspend()
937 writel(command, &xhci->op_regs->command); in xhci_suspend()
940 delay *= (xhci->quirks & XHCI_SLOW_SUSPEND) ? 10 : 1; in xhci_suspend()
942 if (xhci_handshake(&xhci->op_regs->status, in xhci_suspend()
944 xhci_warn(xhci, "WARN: xHC CMD_RUN timeout\n"); in xhci_suspend()
945 spin_unlock_irq(&xhci->lock); in xhci_suspend()
948 xhci_clear_command_ring(xhci); in xhci_suspend()
951 xhci_save_registers(xhci); in xhci_suspend()
954 command = readl(&xhci->op_regs->command); in xhci_suspend()
956 writel(command, &xhci->op_regs->command); in xhci_suspend()
957 xhci->broken_suspend = 0; in xhci_suspend()
958 if (xhci_handshake(&xhci->op_regs->status, in xhci_suspend()
966 * if SRE and HCE bits are not set (as per xhci in xhci_suspend()
969 res = readl(&xhci->op_regs->status); in xhci_suspend()
970 if ((xhci->quirks & XHCI_SNPS_BROKEN_SUSPEND) && in xhci_suspend()
973 xhci->broken_suspend = 1; in xhci_suspend()
975 xhci_warn(xhci, "WARN: xHC save state timeout\n"); in xhci_suspend()
976 spin_unlock_irq(&xhci->lock); in xhci_suspend()
980 spin_unlock_irq(&xhci->lock); in xhci_suspend()
983 * Deleting Compliance Mode Recovery Timer because the xHCI Host in xhci_suspend()
986 if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && in xhci_suspend()
987 (!(xhci_all_ports_seen_u0(xhci)))) { in xhci_suspend()
988 del_timer_sync(&xhci->comp_mode_recovery_timer); in xhci_suspend()
989 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_suspend()
1004 int xhci_resume(struct xhci_hcd *xhci, pm_message_t msg) in xhci_resume() argument
1008 struct usb_hcd *hcd = xhci_to_hcd(xhci); in xhci_resume()
1022 if (time_before(jiffies, xhci->usb2_rhub.bus_state.next_statechange) || in xhci_resume()
1023 time_before(jiffies, xhci->usb3_rhub.bus_state.next_statechange)) in xhci_resume()
1027 if (xhci->shared_hcd) in xhci_resume()
1028 set_bit(HCD_FLAG_HW_ACCESSIBLE, &xhci->shared_hcd->flags); in xhci_resume()
1030 spin_lock_irq(&xhci->lock); in xhci_resume()
1032 if (hibernated || xhci->quirks & XHCI_RESET_ON_RESUME || xhci->broken_suspend) in xhci_resume()
1040 retval = xhci_handshake(&xhci->op_regs->status, in xhci_resume()
1043 xhci_warn(xhci, "Controller not ready at resume %d\n", in xhci_resume()
1045 spin_unlock_irq(&xhci->lock); in xhci_resume()
1049 xhci_restore_registers(xhci); in xhci_resume()
1051 xhci_set_cmd_ring_deq(xhci); in xhci_resume()
1054 command = readl(&xhci->op_regs->command); in xhci_resume()
1056 writel(command, &xhci->op_regs->command); in xhci_resume()
1059 * restore so setting the timeout to 100ms. Xhci specification in xhci_resume()
1062 if (xhci_handshake(&xhci->op_regs->status, in xhci_resume()
1064 xhci_warn(xhci, "WARN: xHC restore state timeout\n"); in xhci_resume()
1065 spin_unlock_irq(&xhci->lock); in xhci_resume()
1070 temp = readl(&xhci->op_regs->status); in xhci_resume()
1074 !(xhci->xhc_state & XHCI_STATE_REMOVING)) { in xhci_resume()
1076 if (!xhci->broken_suspend) in xhci_resume()
1077 xhci_warn(xhci, "xHC error in resume, USBSTS 0x%x, Reinit\n", temp); in xhci_resume()
1081 if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && in xhci_resume()
1082 !(xhci_all_ports_seen_u0(xhci))) { in xhci_resume()
1083 del_timer_sync(&xhci->comp_mode_recovery_timer); in xhci_resume()
1084 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_resume()
1089 usb_root_hub_lost_power(xhci->main_hcd->self.root_hub); in xhci_resume()
1090 if (xhci->shared_hcd) in xhci_resume()
1091 usb_root_hub_lost_power(xhci->shared_hcd->self.root_hub); in xhci_resume()
1093 xhci_dbg(xhci, "Stop HCD\n"); in xhci_resume()
1094 xhci_halt(xhci); in xhci_resume()
1095 xhci_zero_64b_regs(xhci); in xhci_resume()
1096 retval = xhci_reset(xhci, XHCI_RESET_LONG_USEC); in xhci_resume()
1097 spin_unlock_irq(&xhci->lock); in xhci_resume()
1101 xhci_dbg(xhci, "// Disabling event ring interrupts\n"); in xhci_resume()
1102 temp = readl(&xhci->op_regs->status); in xhci_resume()
1103 writel((temp & ~0x1fff) | STS_EINT, &xhci->op_regs->status); in xhci_resume()
1104 xhci_disable_interrupter(xhci->interrupters[0]); in xhci_resume()
1106 xhci_dbg(xhci, "cleaning up memory\n"); in xhci_resume()
1107 xhci_mem_cleanup(xhci); in xhci_resume()
1108 xhci_debugfs_exit(xhci); in xhci_resume()
1109 xhci_dbg(xhci, "xhci_stop completed - status = %x\n", in xhci_resume()
1110 readl(&xhci->op_regs->status)); in xhci_resume()
1116 xhci_dbg(xhci, "Initialize the xhci_hcd\n"); in xhci_resume()
1122 xhci_dbg(xhci, "Start the primary HCD\n"); in xhci_resume()
1124 if (!retval && xhci->shared_hcd) { in xhci_resume()
1125 xhci_dbg(xhci, "Start the secondary HCD\n"); in xhci_resume()
1126 retval = xhci_run(xhci->shared_hcd); in xhci_resume()
1136 if (xhci->shared_hcd) { in xhci_resume()
1137 xhci->shared_hcd->state = HC_STATE_SUSPENDED; in xhci_resume()
1138 usb_hcd_resume_root_hub(xhci->shared_hcd); in xhci_resume()
1146 command = readl(&xhci->op_regs->command); in xhci_resume()
1148 writel(command, &xhci->op_regs->command); in xhci_resume()
1149 xhci_handshake(&xhci->op_regs->status, STS_HALT, in xhci_resume()
1161 spin_unlock_irq(&xhci->lock); in xhci_resume()
1163 xhci_dbc_resume(xhci); in xhci_resume()
1172 if (xhci->usb3_rhub.bus_state.suspended_ports || in xhci_resume()
1173 xhci->usb3_rhub.bus_state.bus_suspended) in xhci_resume()
1176 pending_portevent = xhci_pending_portevent(xhci); in xhci_resume()
1181 pending_portevent = xhci_pending_portevent(xhci); in xhci_resume()
1185 if (xhci->shared_hcd) in xhci_resume()
1186 usb_hcd_resume_root_hub(xhci->shared_hcd); in xhci_resume()
1197 if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !comp_timer_running) in xhci_resume()
1198 compliance_mode_recovery_timer_init(xhci); in xhci_resume()
1200 if (xhci->quirks & XHCI_ASMEDIA_MODIFY_FLOWCONTROL) in xhci_resume()
1204 xhci_dbg(xhci, "%s: starting usb%d port polling.\n", in xhci_resume()
1206 if (xhci->shared_hcd) { in xhci_resume()
1207 set_bit(HCD_FLAG_POLL_RH, &xhci->shared_hcd->flags); in xhci_resume()
1208 usb_hcd_poll_rh_status(xhci->shared_hcd); in xhci_resume()
1338 struct xhci_hcd *xhci; in xhci_map_urb_for_dma() local
1340 xhci = hcd_to_xhci(hcd); in xhci_map_urb_for_dma()
1345 if (xhci->quirks & XHCI_SG_TRB_CACHE_SIZE_QUIRK) { in xhci_map_urb_for_dma()
1354 struct xhci_hcd *xhci; in xhci_unmap_urb_for_dma() local
1357 xhci = hcd_to_xhci(hcd); in xhci_unmap_urb_for_dma()
1362 if ((xhci->quirks & XHCI_SG_TRB_CACHE_SIZE_QUIRK) && unmap_temp_buf) in xhci_unmap_urb_for_dma()
1391 * address from the XHCI endpoint index.
1426 struct xhci_hcd *xhci; in xhci_check_args() local
1430 pr_debug("xHCI %s called with invalid args\n", func); in xhci_check_args()
1434 pr_debug("xHCI %s called for root hub\n", func); in xhci_check_args()
1438 xhci = hcd_to_xhci(hcd); in xhci_check_args()
1440 if (!udev->slot_id || !xhci->devs[udev->slot_id]) { in xhci_check_args()
1441 xhci_dbg(xhci, "xHCI %s called with unaddressed device\n", in xhci_check_args()
1446 virt_dev = xhci->devs[udev->slot_id]; in xhci_check_args()
1448 xhci_dbg(xhci, "xHCI %s called with udev and " in xhci_check_args()
1454 if (xhci->xhc_state & XHCI_STATE_HALTED) in xhci_check_args()
1460 static int xhci_configure_endpoint(struct xhci_hcd *xhci,
1470 static int xhci_check_ep0_maxpacket(struct xhci_hcd *xhci, struct xhci_virt_device *vdev) in xhci_check_ep0_maxpacket() argument
1479 ep_ctx = xhci_get_ep_ctx(xhci, vdev->out_ctx, 0); in xhci_check_ep0_maxpacket()
1488 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_check_ep0_maxpacket()
1490 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_check_ep0_maxpacket()
1493 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_check_ep0_maxpacket()
1494 "Max packet size in xHCI HW = %d", in xhci_check_ep0_maxpacket()
1496 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_check_ep0_maxpacket()
1499 command = xhci_alloc_command(xhci, true, GFP_KERNEL); in xhci_check_ep0_maxpacket()
1506 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_check_ep0_maxpacket()
1512 xhci_endpoint_copy(xhci, vdev->in_ctx, vdev->out_ctx, 0); in xhci_check_ep0_maxpacket()
1514 ep_ctx = xhci_get_ep_ctx(xhci, command->in_ctx, 0); in xhci_check_ep0_maxpacket()
1522 ret = xhci_configure_endpoint(xhci, vdev->udev, command, in xhci_check_ep0_maxpacket()
1545 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_urb_enqueue() local
1575 spin_lock_irqsave(&xhci->lock, flags); in xhci_urb_enqueue()
1591 if (xhci->devs[slot_id]->flags & VDEV_PORT_ERROR) { in xhci_urb_enqueue()
1592 xhci_dbg(xhci, "Can't queue urb, port error, link inactive\n"); in xhci_urb_enqueue()
1597 if (xhci->xhc_state & XHCI_STATE_DYING) { in xhci_urb_enqueue()
1598 xhci_dbg(xhci, "Ep 0x%x: URB %p submitted for non-responsive xHCI host.\n", in xhci_urb_enqueue()
1604 ep_state = &xhci->devs[slot_id]->eps[ep_index].ep_state; in xhci_urb_enqueue()
1607 xhci_warn(xhci, "WARN: Can't enqueue URB, ep in streams transition state %x\n", in xhci_urb_enqueue()
1613 xhci_warn(xhci, "Can't enqueue URB while manually clearing toggle\n"); in xhci_urb_enqueue()
1621 ret = xhci_queue_ctrl_tx(xhci, GFP_ATOMIC, urb, in xhci_urb_enqueue()
1625 ret = xhci_queue_bulk_tx(xhci, GFP_ATOMIC, urb, in xhci_urb_enqueue()
1629 ret = xhci_queue_intr_tx(xhci, GFP_ATOMIC, urb, in xhci_urb_enqueue()
1633 ret = xhci_queue_isoc_tx_prepare(xhci, GFP_ATOMIC, urb, in xhci_urb_enqueue()
1642 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_urb_enqueue()
1664 * endpoint command, as noted in the xHCI 0.95 errata.
1682 struct xhci_hcd *xhci; in xhci_urb_dequeue() local
1691 xhci = hcd_to_xhci(hcd); in xhci_urb_dequeue()
1692 spin_lock_irqsave(&xhci->lock, flags); in xhci_urb_dequeue()
1702 vdev = xhci->devs[urb->dev->slot_id]; in xhci_urb_dequeue()
1709 ep_ring = xhci_urb_to_transfer_ring(xhci, urb); in xhci_urb_dequeue()
1714 temp = readl(&xhci->op_regs->status); in xhci_urb_dequeue()
1715 if (temp == ~(u32)0 || xhci->xhc_state & XHCI_STATE_DYING) { in xhci_urb_dequeue()
1716 xhci_hc_died(xhci); in xhci_urb_dequeue()
1726 xhci_err(xhci, "Canceled URB td not found on endpoint ring"); in xhci_urb_dequeue()
1735 if (xhci->xhc_state & XHCI_STATE_HALTED) { in xhci_urb_dequeue()
1736 xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, in xhci_urb_dequeue()
1752 xhci_dbg_trace(xhci, trace_xhci_dbg_cancel_urb, in xhci_urb_dequeue()
1775 command = xhci_alloc_command(xhci, false, GFP_ATOMIC); in xhci_urb_dequeue()
1781 xhci_queue_stop_endpoint(xhci, command, urb->dev->slot_id, in xhci_urb_dequeue()
1783 xhci_ring_cmd_db(xhci); in xhci_urb_dequeue()
1786 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_urb_dequeue()
1793 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_urb_dequeue()
1809 * the xhci->devs[slot_id] structure.
1814 struct xhci_hcd *xhci; in xhci_drop_endpoint() local
1826 xhci = hcd_to_xhci(hcd); in xhci_drop_endpoint()
1827 if (xhci->xhc_state & XHCI_STATE_DYING) in xhci_drop_endpoint()
1830 xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev); in xhci_drop_endpoint()
1833 xhci_dbg(xhci, "xHCI %s - can't drop slot or ep 0 %#x\n", in xhci_drop_endpoint()
1838 in_ctx = xhci->devs[udev->slot_id]->in_ctx; in xhci_drop_endpoint()
1839 out_ctx = xhci->devs[udev->slot_id]->out_ctx; in xhci_drop_endpoint()
1842 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_drop_endpoint()
1848 ep_ctx = xhci_get_ep_ctx(xhci, out_ctx, ep_index); in xhci_drop_endpoint()
1856 if (xhci->devs[udev->slot_id]->eps[ep_index].ring != NULL) in xhci_drop_endpoint()
1857 xhci_warn(xhci, "xHCI %s called with disabled ep %p\n", in xhci_drop_endpoint()
1868 xhci_debugfs_remove_endpoint(xhci, xhci->devs[udev->slot_id], ep_index); in xhci_drop_endpoint()
1870 xhci_endpoint_zero(xhci, xhci->devs[udev->slot_id], ep); in xhci_drop_endpoint()
1872 xhci_dbg(xhci, "drop ep 0x%x, slot id %d, new drop flags = %#x, new add flags = %#x\n", in xhci_drop_endpoint()
1892 * for mutual exclusion to protect the xhci->devs[slot_id] structure.
1897 struct xhci_hcd *xhci; in xhci_add_endpoint() local
1913 xhci = hcd_to_xhci(hcd); in xhci_add_endpoint()
1914 if (xhci->xhc_state & XHCI_STATE_DYING) in xhci_add_endpoint()
1923 xhci_dbg(xhci, "xHCI %s - can't add slot or ep 0 %#x\n", in xhci_add_endpoint()
1928 virt_dev = xhci->devs[udev->slot_id]; in xhci_add_endpoint()
1932 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_add_endpoint()
1943 xhci_warn(xhci, "Trying to add endpoint 0x%x " in xhci_add_endpoint()
1953 xhci_warn(xhci, "xHCI %s called with enabled ep %p\n", in xhci_add_endpoint()
1963 if (xhci_endpoint_init(xhci, virt_dev, udev, ep, GFP_NOIO) < 0) { in xhci_add_endpoint()
1983 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, ep_index); in xhci_add_endpoint()
1986 xhci_dbg(xhci, "add ep 0x%x, slot id %d, new drop flags = %#x, new add flags = %#x\n", in xhci_add_endpoint()
1995 static void xhci_zero_in_ctx(struct xhci_hcd *xhci, struct xhci_virt_device *virt_dev) in xhci_zero_in_ctx() argument
2004 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_zero_in_ctx()
2016 slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx); in xhci_zero_in_ctx()
2021 ep_ctx = xhci_get_ep_ctx(xhci, virt_dev->in_ctx, i); in xhci_zero_in_ctx()
2029 static int xhci_configure_endpoint_result(struct xhci_hcd *xhci, in xhci_configure_endpoint_result() argument
2037 xhci_warn(xhci, "Timeout while waiting for configure endpoint command\n"); in xhci_configure_endpoint_result()
2066 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_configure_endpoint_result()
2071 xhci_err(xhci, "ERROR: unexpected command completion code 0x%x.\n", in xhci_configure_endpoint_result()
2079 static int xhci_evaluate_context_result(struct xhci_hcd *xhci, in xhci_evaluate_context_result() argument
2087 xhci_warn(xhci, "Timeout while waiting for evaluate context command\n"); in xhci_evaluate_context_result()
2092 "WARN: xHCI driver setup invalid evaluate context command.\n"); in xhci_evaluate_context_result()
2116 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_evaluate_context_result()
2121 xhci_err(xhci, "ERROR: unexpected command completion code 0x%x.\n", in xhci_evaluate_context_result()
2129 static u32 xhci_count_num_new_endpoints(struct xhci_hcd *xhci, in xhci_count_num_new_endpoints() argument
2150 static unsigned int xhci_count_num_dropped_endpoints(struct xhci_hcd *xhci, in xhci_count_num_dropped_endpoints() argument
2174 * Must be called with xhci->lock held.
2176 static int xhci_reserve_host_resources(struct xhci_hcd *xhci, in xhci_reserve_host_resources() argument
2181 added_eps = xhci_count_num_new_endpoints(xhci, ctrl_ctx); in xhci_reserve_host_resources()
2182 if (xhci->num_active_eps + added_eps > xhci->limit_active_eps) { in xhci_reserve_host_resources()
2183 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_reserve_host_resources()
2186 xhci->num_active_eps, added_eps, in xhci_reserve_host_resources()
2187 xhci->limit_active_eps); in xhci_reserve_host_resources()
2190 xhci->num_active_eps += added_eps; in xhci_reserve_host_resources()
2191 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_reserve_host_resources()
2193 xhci->num_active_eps); in xhci_reserve_host_resources()
2201 * Must be called with xhci->lock held.
2203 static void xhci_free_host_resources(struct xhci_hcd *xhci, in xhci_free_host_resources() argument
2208 num_failed_eps = xhci_count_num_new_endpoints(xhci, ctrl_ctx); in xhci_free_host_resources()
2209 xhci->num_active_eps -= num_failed_eps; in xhci_free_host_resources()
2210 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_free_host_resources()
2213 xhci->num_active_eps); in xhci_free_host_resources()
2220 * Must be called with xhci->lock held.
2222 static void xhci_finish_resource_reservation(struct xhci_hcd *xhci, in xhci_finish_resource_reservation() argument
2227 num_dropped_eps = xhci_count_num_dropped_endpoints(xhci, ctrl_ctx); in xhci_finish_resource_reservation()
2228 xhci->num_active_eps -= num_dropped_eps; in xhci_finish_resource_reservation()
2230 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_finish_resource_reservation()
2233 xhci->num_active_eps); in xhci_finish_resource_reservation()
2268 static int xhci_check_tt_bw_table(struct xhci_hcd *xhci, in xhci_check_tt_bw_table() argument
2276 bw_table = &xhci->rh_bw[virt_dev->rhub_port->hw_portnum].bw_table; in xhci_check_tt_bw_table()
2298 static int xhci_check_ss_bw(struct xhci_hcd *xhci, in xhci_check_ss_bw() argument
2355 static int xhci_check_bw_table(struct xhci_hcd *xhci, in xhci_check_bw_table() argument
2371 return xhci_check_ss_bw(xhci, virt_dev); in xhci_check_bw_table()
2392 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_check_bw_table()
2395 if (xhci_check_tt_bw_table(xhci, virt_dev, old_active_eps)) { in xhci_check_bw_table()
2396 xhci_warn(xhci, "Not enough bandwidth on HS bus for " in xhci_check_bw_table()
2400 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_check_bw_table()
2405 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_check_bw_table()
2488 xhci_warn(xhci, "Not enough bandwidth. " in xhci_check_bw_table()
2509 xhci->rh_bw[virt_dev->rhub_port->hw_portnum].num_active_tts; in xhci_check_bw_table()
2512 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_check_bw_table()
2521 xhci_warn(xhci, "Not enough bandwidth. Proposed: %u, Max: %u\n", in xhci_check_bw_table()
2556 static void xhci_drop_ep_from_interval_table(struct xhci_hcd *xhci, in xhci_drop_ep_from_interval_table() argument
2571 xhci->devs[udev->slot_id]->bw_table->ss_bw_in -= in xhci_drop_ep_from_interval_table()
2574 xhci->devs[udev->slot_id]->bw_table->ss_bw_out -= in xhci_drop_ep_from_interval_table()
2617 static void xhci_add_ep_to_interval_table(struct xhci_hcd *xhci, in xhci_add_ep_to_interval_table() argument
2633 xhci->devs[udev->slot_id]->bw_table->ss_bw_in += in xhci_add_ep_to_interval_table()
2636 xhci->devs[udev->slot_id]->bw_table->ss_bw_out += in xhci_add_ep_to_interval_table()
2688 void xhci_update_tt_active_eps(struct xhci_hcd *xhci, in xhci_update_tt_active_eps() argument
2696 rh_bw_info = &xhci->rh_bw[virt_dev->rhub_port->hw_portnum]; in xhci_update_tt_active_eps()
2708 static int xhci_reserve_bandwidth(struct xhci_hcd *xhci, in xhci_reserve_bandwidth() argument
2722 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_reserve_bandwidth()
2738 xhci_drop_ep_from_interval_table(xhci, in xhci_reserve_bandwidth()
2746 xhci_update_bw_info(xhci, virt_dev->in_ctx, ctrl_ctx, virt_dev); in xhci_reserve_bandwidth()
2750 xhci_add_ep_to_interval_table(xhci, in xhci_reserve_bandwidth()
2758 if (!xhci_check_bw_table(xhci, virt_dev, old_active_eps)) { in xhci_reserve_bandwidth()
2762 xhci_update_tt_active_eps(xhci, virt_dev, old_active_eps); in xhci_reserve_bandwidth()
2775 xhci_drop_ep_from_interval_table(xhci, in xhci_reserve_bandwidth()
2787 xhci_add_ep_to_interval_table(xhci, in xhci_reserve_bandwidth()
2801 static int xhci_configure_endpoint(struct xhci_hcd *xhci, in xhci_configure_endpoint() argument
2815 spin_lock_irqsave(&xhci->lock, flags); in xhci_configure_endpoint()
2817 if (xhci->xhc_state & XHCI_STATE_DYING) { in xhci_configure_endpoint()
2818 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_configure_endpoint()
2822 virt_dev = xhci->devs[udev->slot_id]; in xhci_configure_endpoint()
2826 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_configure_endpoint()
2827 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_configure_endpoint()
2832 if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK) && in xhci_configure_endpoint()
2833 xhci_reserve_host_resources(xhci, ctrl_ctx)) { in xhci_configure_endpoint()
2834 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_configure_endpoint()
2835 xhci_warn(xhci, "Not enough host resources, " in xhci_configure_endpoint()
2837 xhci->num_active_eps); in xhci_configure_endpoint()
2840 if ((xhci->quirks & XHCI_SW_BW_CHECKING) && !ctx_change && in xhci_configure_endpoint()
2841 xhci_reserve_bandwidth(xhci, virt_dev, command->in_ctx)) { in xhci_configure_endpoint()
2842 if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK)) in xhci_configure_endpoint()
2843 xhci_free_host_resources(xhci, ctrl_ctx); in xhci_configure_endpoint()
2844 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_configure_endpoint()
2845 xhci_warn(xhci, "Not enough bandwidth\n"); in xhci_configure_endpoint()
2849 slot_ctx = xhci_get_slot_ctx(xhci, command->in_ctx); in xhci_configure_endpoint()
2855 ret = xhci_queue_configure_endpoint(xhci, command, in xhci_configure_endpoint()
2859 ret = xhci_queue_evaluate_context(xhci, command, in xhci_configure_endpoint()
2863 if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK)) in xhci_configure_endpoint()
2864 xhci_free_host_resources(xhci, ctrl_ctx); in xhci_configure_endpoint()
2865 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_configure_endpoint()
2866 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_configure_endpoint()
2870 xhci_ring_cmd_db(xhci); in xhci_configure_endpoint()
2871 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_configure_endpoint()
2877 ret = xhci_configure_endpoint_result(xhci, udev, in xhci_configure_endpoint()
2880 ret = xhci_evaluate_context_result(xhci, udev, in xhci_configure_endpoint()
2883 if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK)) { in xhci_configure_endpoint()
2884 spin_lock_irqsave(&xhci->lock, flags); in xhci_configure_endpoint()
2889 xhci_free_host_resources(xhci, ctrl_ctx); in xhci_configure_endpoint()
2891 xhci_finish_resource_reservation(xhci, ctrl_ctx); in xhci_configure_endpoint()
2892 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_configure_endpoint()
2897 static void xhci_check_bw_drop_ep_streams(struct xhci_hcd *xhci, in xhci_check_bw_drop_ep_streams() argument
2903 xhci_warn(xhci, "WARN: endpoint 0x%02x has streams on set_interface, freeing streams.\n", in xhci_check_bw_drop_ep_streams()
2905 xhci_free_stream_info(xhci, ep->stream_info); in xhci_check_bw_drop_ep_streams()
2918 * else should be touching the xhci->devs[slot_id] structure, so we
2919 * don't need to take the xhci->lock for manipulating that.
2925 struct xhci_hcd *xhci; in xhci_check_bandwidth() local
2934 xhci = hcd_to_xhci(hcd); in xhci_check_bandwidth()
2935 if ((xhci->xhc_state & XHCI_STATE_DYING) || in xhci_check_bandwidth()
2936 (xhci->xhc_state & XHCI_STATE_REMOVING)) in xhci_check_bandwidth()
2939 xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev); in xhci_check_bandwidth()
2940 virt_dev = xhci->devs[udev->slot_id]; in xhci_check_bandwidth()
2942 command = xhci_alloc_command(xhci, true, GFP_KERNEL); in xhci_check_bandwidth()
2951 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_check_bandwidth()
2967 slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx); in xhci_check_bandwidth()
2979 ret = xhci_configure_endpoint(xhci, udev, command, in xhci_check_bandwidth()
2989 xhci_free_endpoint_ring(xhci, virt_dev, i); in xhci_check_bandwidth()
2990 xhci_check_bw_drop_ep_streams(xhci, virt_dev, i); in xhci_check_bandwidth()
2993 xhci_zero_in_ctx(xhci, virt_dev); in xhci_check_bandwidth()
3005 xhci_free_endpoint_ring(xhci, virt_dev, i); in xhci_check_bandwidth()
3007 xhci_check_bw_drop_ep_streams(xhci, virt_dev, i); in xhci_check_bandwidth()
3010 xhci_debugfs_create_endpoint(xhci, virt_dev, i); in xhci_check_bandwidth()
3022 struct xhci_hcd *xhci; in xhci_reset_bandwidth() local
3029 xhci = hcd_to_xhci(hcd); in xhci_reset_bandwidth()
3031 xhci_dbg(xhci, "%s called for udev %p\n", __func__, udev); in xhci_reset_bandwidth()
3032 virt_dev = xhci->devs[udev->slot_id]; in xhci_reset_bandwidth()
3036 xhci_debugfs_remove_endpoint(xhci, virt_dev, i); in xhci_reset_bandwidth()
3037 xhci_ring_free(xhci, virt_dev->eps[i].new_ring); in xhci_reset_bandwidth()
3041 xhci_zero_in_ctx(xhci, virt_dev); in xhci_reset_bandwidth()
3045 static void xhci_setup_input_ctx_for_config_ep(struct xhci_hcd *xhci, in xhci_setup_input_ctx_for_config_ep() argument
3053 xhci_slot_copy(xhci, in_ctx, out_ctx); in xhci_setup_input_ctx_for_config_ep()
3060 struct xhci_hcd *xhci; in xhci_endpoint_disable() local
3067 xhci = hcd_to_xhci(hcd); in xhci_endpoint_disable()
3069 spin_lock_irqsave(&xhci->lock, flags); in xhci_endpoint_disable()
3075 vdev = xhci->devs[udev->slot_id]; in xhci_endpoint_disable()
3084 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_disable()
3090 xhci_dbg(xhci, "endpoint disable with ep_state 0x%x\n", in xhci_endpoint_disable()
3094 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_disable()
3106 * endpoint. Refer to the additional note in xhci spcification section 4.6.8.
3115 struct xhci_hcd *xhci; in xhci_endpoint_reset() local
3126 xhci = hcd_to_xhci(hcd); in xhci_endpoint_reset()
3132 * mismatch. Reconfigure the xhci ep0 endpoint context here in that case in xhci_endpoint_reset()
3140 vdev = xhci->devs[udev->slot_id]; in xhci_endpoint_reset()
3144 xhci_check_ep0_maxpacket(xhci, vdev); in xhci_endpoint_reset()
3153 vdev = xhci->devs[udev->slot_id]; in xhci_endpoint_reset()
3161 spin_lock_irqsave(&xhci->lock, flags); in xhci_endpoint_reset()
3164 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3167 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3178 stop_cmd = xhci_alloc_command(xhci, true, GFP_NOWAIT); in xhci_endpoint_reset()
3182 cfg_cmd = xhci_alloc_command_with_ctx(xhci, true, GFP_NOWAIT); in xhci_endpoint_reset()
3186 spin_lock_irqsave(&xhci->lock, flags); in xhci_endpoint_reset()
3199 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3200 xhci_free_command(xhci, cfg_cmd); in xhci_endpoint_reset()
3204 err = xhci_queue_stop_endpoint(xhci, stop_cmd, udev->slot_id, in xhci_endpoint_reset()
3207 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3208 xhci_free_command(xhci, cfg_cmd); in xhci_endpoint_reset()
3209 xhci_dbg(xhci, "%s: Failed to queue stop ep command, %d ", in xhci_endpoint_reset()
3214 xhci_ring_cmd_db(xhci); in xhci_endpoint_reset()
3215 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3219 spin_lock_irqsave(&xhci->lock, flags); in xhci_endpoint_reset()
3224 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3225 xhci_free_command(xhci, cfg_cmd); in xhci_endpoint_reset()
3226 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_endpoint_reset()
3231 xhci_setup_input_ctx_for_config_ep(xhci, cfg_cmd->in_ctx, vdev->out_ctx, in xhci_endpoint_reset()
3233 xhci_endpoint_copy(xhci, cfg_cmd->in_ctx, vdev->out_ctx, ep_index); in xhci_endpoint_reset()
3235 err = xhci_queue_configure_endpoint(xhci, cfg_cmd, cfg_cmd->in_ctx->dma, in xhci_endpoint_reset()
3238 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3239 xhci_free_command(xhci, cfg_cmd); in xhci_endpoint_reset()
3240 xhci_dbg(xhci, "%s: Failed to queue config ep command, %d ", in xhci_endpoint_reset()
3245 xhci_ring_cmd_db(xhci); in xhci_endpoint_reset()
3246 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3250 xhci_free_command(xhci, cfg_cmd); in xhci_endpoint_reset()
3252 xhci_free_command(xhci, stop_cmd); in xhci_endpoint_reset()
3253 spin_lock_irqsave(&xhci->lock, flags); in xhci_endpoint_reset()
3256 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_endpoint_reset()
3259 static int xhci_check_streams_endpoint(struct xhci_hcd *xhci, in xhci_check_streams_endpoint() argument
3269 ret = xhci_check_args(xhci_to_hcd(xhci), udev, ep, 1, true, __func__); in xhci_check_streams_endpoint()
3273 xhci_warn(xhci, "WARN: SuperSpeed Endpoint Companion" in xhci_check_streams_endpoint()
3280 ep_state = xhci->devs[slot_id]->eps[ep_index].ep_state; in xhci_check_streams_endpoint()
3283 xhci_warn(xhci, "WARN: SuperSpeed bulk endpoint 0x%x " in xhci_check_streams_endpoint()
3286 xhci_warn(xhci, "Send email to xHCI maintainer and ask for " in xhci_check_streams_endpoint()
3290 if (!list_empty(&xhci->devs[slot_id]->eps[ep_index].ring->td_list)) { in xhci_check_streams_endpoint()
3291 xhci_warn(xhci, "Cannot setup streams for SuperSpeed bulk " in xhci_check_streams_endpoint()
3299 static void xhci_calculate_streams_entries(struct xhci_hcd *xhci, in xhci_calculate_streams_entries() argument
3309 * level page entries), but that's an optional feature for xHCI host in xhci_calculate_streams_entries()
3312 max_streams = HCC_MAX_PSA(xhci->hcc_params); in xhci_calculate_streams_entries()
3314 xhci_dbg(xhci, "xHCI HW only supports %u stream ctx entries.\n", in xhci_calculate_streams_entries()
3325 static int xhci_calculate_streams_and_bitmask(struct xhci_hcd *xhci, in xhci_calculate_streams_and_bitmask() argument
3336 ret = xhci_check_streams_endpoint(xhci, udev, in xhci_calculate_streams_and_bitmask()
3343 xhci_dbg(xhci, "Ep 0x%x only supports %u stream IDs.\n", in xhci_calculate_streams_and_bitmask()
3357 static u32 xhci_calculate_no_streams_bitmask(struct xhci_hcd *xhci, in xhci_calculate_no_streams_bitmask() argument
3368 if (!xhci->devs[slot_id]) in xhci_calculate_no_streams_bitmask()
3373 ep_state = xhci->devs[slot_id]->eps[ep_index].ep_state; in xhci_calculate_no_streams_bitmask()
3376 xhci_warn(xhci, "WARN Can't disable streams for " in xhci_calculate_no_streams_bitmask()
3385 xhci_warn(xhci, "WARN Can't disable streams for " in xhci_calculate_no_streams_bitmask()
3389 xhci_warn(xhci, "WARN xhci_free_streams() called " in xhci_calculate_no_streams_bitmask()
3419 struct xhci_hcd *xhci; in xhci_alloc_streams() local
3433 * stream 0 that is reserved for xHCI usage. in xhci_alloc_streams()
3436 xhci = hcd_to_xhci(hcd); in xhci_alloc_streams()
3437 xhci_dbg(xhci, "Driver wants %u stream IDs (including stream 0).\n", in xhci_alloc_streams()
3441 if ((xhci->quirks & XHCI_BROKEN_STREAMS) || in xhci_alloc_streams()
3442 HCC_MAX_PSA(xhci->hcc_params) < 4) { in xhci_alloc_streams()
3443 xhci_dbg(xhci, "xHCI controller does not support streams.\n"); in xhci_alloc_streams()
3447 config_cmd = xhci_alloc_command_with_ctx(xhci, true, mem_flags); in xhci_alloc_streams()
3453 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_alloc_streams()
3455 xhci_free_command(xhci, config_cmd); in xhci_alloc_streams()
3463 spin_lock_irqsave(&xhci->lock, flags); in xhci_alloc_streams()
3464 ret = xhci_calculate_streams_and_bitmask(xhci, udev, eps, in xhci_alloc_streams()
3467 xhci_free_command(xhci, config_cmd); in xhci_alloc_streams()
3468 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_alloc_streams()
3472 xhci_warn(xhci, "WARN: endpoints can't handle " in xhci_alloc_streams()
3474 xhci_free_command(xhci, config_cmd); in xhci_alloc_streams()
3475 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_alloc_streams()
3478 vdev = xhci->devs[udev->slot_id]; in xhci_alloc_streams()
3486 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_alloc_streams()
3492 xhci_calculate_streams_entries(xhci, &num_streams, &num_stream_ctxs); in xhci_alloc_streams()
3493 xhci_dbg(xhci, "Need %u stream ctx entries for %u stream IDs.\n", in xhci_alloc_streams()
3499 vdev->eps[ep_index].stream_info = xhci_alloc_stream_info(xhci, in xhci_alloc_streams()
3515 ep_ctx = xhci_get_ep_ctx(xhci, config_cmd->in_ctx, ep_index); in xhci_alloc_streams()
3517 xhci_endpoint_copy(xhci, config_cmd->in_ctx, in xhci_alloc_streams()
3519 xhci_setup_streams_ep_input_ctx(xhci, ep_ctx, in xhci_alloc_streams()
3525 xhci_setup_input_ctx_for_config_ep(xhci, config_cmd->in_ctx, in xhci_alloc_streams()
3530 ret = xhci_configure_endpoint(xhci, udev, config_cmd, in xhci_alloc_streams()
3540 spin_lock_irqsave(&xhci->lock, flags); in xhci_alloc_streams()
3544 xhci_dbg(xhci, "Slot %u ep ctx %u now has streams.\n", in xhci_alloc_streams()
3548 xhci_free_command(xhci, config_cmd); in xhci_alloc_streams()
3549 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_alloc_streams()
3553 xhci_debugfs_create_stream_files(xhci, vdev, ep_index); in xhci_alloc_streams()
3562 xhci_free_stream_info(xhci, vdev->eps[ep_index].stream_info); in xhci_alloc_streams()
3569 xhci_endpoint_zero(xhci, vdev, eps[i]); in xhci_alloc_streams()
3571 xhci_free_command(xhci, config_cmd); in xhci_alloc_streams()
3586 struct xhci_hcd *xhci; in xhci_free_streams() local
3594 xhci = hcd_to_xhci(hcd); in xhci_free_streams()
3595 vdev = xhci->devs[udev->slot_id]; in xhci_free_streams()
3598 spin_lock_irqsave(&xhci->lock, flags); in xhci_free_streams()
3599 changed_ep_bitmask = xhci_calculate_no_streams_bitmask(xhci, in xhci_free_streams()
3602 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_free_streams()
3614 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_free_streams()
3615 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_free_streams()
3624 ep_ctx = xhci_get_ep_ctx(xhci, command->in_ctx, ep_index); in xhci_free_streams()
3625 xhci->devs[udev->slot_id]->eps[ep_index].ep_state |= in xhci_free_streams()
3628 xhci_endpoint_copy(xhci, command->in_ctx, in xhci_free_streams()
3633 xhci_setup_input_ctx_for_config_ep(xhci, command->in_ctx, in xhci_free_streams()
3636 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_free_streams()
3641 ret = xhci_configure_endpoint(xhci, udev, command, in xhci_free_streams()
3650 spin_lock_irqsave(&xhci->lock, flags); in xhci_free_streams()
3653 xhci_free_stream_info(xhci, vdev->eps[ep_index].stream_info); in xhci_free_streams()
3661 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_free_streams()
3671 * Must be called with xhci->lock held.
3673 void xhci_free_device_endpoint_resources(struct xhci_hcd *xhci, in xhci_free_device_endpoint_resources() argument
3686 xhci->num_active_eps -= num_dropped_eps; in xhci_free_device_endpoint_resources()
3688 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_free_device_endpoint_resources()
3692 xhci->num_active_eps); in xhci_free_device_endpoint_resources()
3718 struct xhci_hcd *xhci; in xhci_discover_or_reset_device() local
3728 xhci = hcd_to_xhci(hcd); in xhci_discover_or_reset_device()
3730 virt_dev = xhci->devs[slot_id]; in xhci_discover_or_reset_device()
3732 xhci_dbg(xhci, "The device to be reset with slot ID %u does " in xhci_discover_or_reset_device()
3749 xhci_dbg(xhci, "The device to be reset with slot ID %u does " in xhci_discover_or_reset_device()
3760 slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); in xhci_discover_or_reset_device()
3767 xhci_dbg(xhci, "Resetting device with slot ID %u\n", slot_id); in xhci_discover_or_reset_device()
3774 reset_device_cmd = xhci_alloc_command(xhci, true, GFP_NOIO); in xhci_discover_or_reset_device()
3776 xhci_dbg(xhci, "Couldn't allocate command structure.\n"); in xhci_discover_or_reset_device()
3781 spin_lock_irqsave(&xhci->lock, flags); in xhci_discover_or_reset_device()
3783 ret = xhci_queue_reset_device(xhci, reset_device_cmd, slot_id); in xhci_discover_or_reset_device()
3785 xhci_dbg(xhci, "FIXME: allocate a command ring segment\n"); in xhci_discover_or_reset_device()
3786 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_discover_or_reset_device()
3789 xhci_ring_cmd_db(xhci); in xhci_discover_or_reset_device()
3790 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_discover_or_reset_device()
3803 xhci_warn(xhci, "Timeout waiting for reset device command\n"); in xhci_discover_or_reset_device()
3808 xhci_dbg(xhci, "Can't reset device (slot ID %u) in %s state\n", in xhci_discover_or_reset_device()
3810 xhci_get_slot_state(xhci, virt_dev->out_ctx)); in xhci_discover_or_reset_device()
3811 xhci_dbg(xhci, "Not freeing device rings.\n"); in xhci_discover_or_reset_device()
3816 xhci_dbg(xhci, "Successful reset device command.\n"); in xhci_discover_or_reset_device()
3819 if (xhci_is_vendor_info_code(xhci, ret)) in xhci_discover_or_reset_device()
3821 xhci_warn(xhci, "Unknown completion code %u for " in xhci_discover_or_reset_device()
3828 if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK)) { in xhci_discover_or_reset_device()
3829 spin_lock_irqsave(&xhci->lock, flags); in xhci_discover_or_reset_device()
3831 xhci_free_device_endpoint_resources(xhci, virt_dev, false); in xhci_discover_or_reset_device()
3832 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_discover_or_reset_device()
3840 xhci_warn(xhci, "WARN: endpoint 0x%02x has streams on device reset, freeing streams.\n", in xhci_discover_or_reset_device()
3842 xhci_free_stream_info(xhci, ep->stream_info); in xhci_discover_or_reset_device()
3848 xhci_debugfs_remove_endpoint(xhci, virt_dev, i); in xhci_discover_or_reset_device()
3849 xhci_free_endpoint_ring(xhci, virt_dev, i); in xhci_discover_or_reset_device()
3852 xhci_drop_ep_from_interval_table(xhci, in xhci_discover_or_reset_device()
3861 xhci_update_tt_active_eps(xhci, virt_dev, old_active_eps); in xhci_discover_or_reset_device()
3866 xhci_free_command(xhci, reset_device_cmd); in xhci_discover_or_reset_device()
3877 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_free_dev() local
3888 if (xhci->quirks & XHCI_RESET_ON_RESUME) in xhci_free_dev()
3898 virt_dev = xhci->devs[udev->slot_id]; in xhci_free_dev()
3899 slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); in xhci_free_dev()
3906 xhci_disable_slot(xhci, udev->slot_id); in xhci_free_dev()
3908 spin_lock_irqsave(&xhci->lock, flags); in xhci_free_dev()
3909 xhci_free_virt_device(xhci, udev->slot_id); in xhci_free_dev()
3910 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_free_dev()
3914 int xhci_disable_slot(struct xhci_hcd *xhci, u32 slot_id) in xhci_disable_slot() argument
3921 command = xhci_alloc_command(xhci, true, GFP_KERNEL); in xhci_disable_slot()
3925 xhci_debugfs_remove_slot(xhci, slot_id); in xhci_disable_slot()
3927 spin_lock_irqsave(&xhci->lock, flags); in xhci_disable_slot()
3929 state = readl(&xhci->op_regs->status); in xhci_disable_slot()
3930 if (state == 0xffffffff || (xhci->xhc_state & XHCI_STATE_DYING) || in xhci_disable_slot()
3931 (xhci->xhc_state & XHCI_STATE_HALTED)) { in xhci_disable_slot()
3932 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_disable_slot()
3937 ret = xhci_queue_slot_control(xhci, command, TRB_DISABLE_SLOT, in xhci_disable_slot()
3940 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_disable_slot()
3944 xhci_ring_cmd_db(xhci); in xhci_disable_slot()
3945 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_disable_slot()
3950 xhci_warn(xhci, "Unsuccessful disable slot %u command, status %d\n", in xhci_disable_slot()
3953 xhci_free_command(xhci, command); in xhci_disable_slot()
3962 * Must be called with xhci->lock held.
3964 static int xhci_reserve_host_control_ep_resources(struct xhci_hcd *xhci) in xhci_reserve_host_control_ep_resources() argument
3966 if (xhci->num_active_eps + 1 > xhci->limit_active_eps) { in xhci_reserve_host_control_ep_resources()
3967 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_reserve_host_control_ep_resources()
3970 xhci->num_active_eps, xhci->limit_active_eps); in xhci_reserve_host_control_ep_resources()
3973 xhci->num_active_eps += 1; in xhci_reserve_host_control_ep_resources()
3974 xhci_dbg_trace(xhci, trace_xhci_dbg_quirks, in xhci_reserve_host_control_ep_resources()
3976 xhci->num_active_eps); in xhci_reserve_host_control_ep_resources()
3987 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_alloc_dev() local
3994 command = xhci_alloc_command(xhci, true, GFP_KERNEL); in xhci_alloc_dev()
3998 spin_lock_irqsave(&xhci->lock, flags); in xhci_alloc_dev()
3999 ret = xhci_queue_slot_control(xhci, command, TRB_ENABLE_SLOT, 0); in xhci_alloc_dev()
4001 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_alloc_dev()
4002 xhci_dbg(xhci, "FIXME: allocate a command ring segment\n"); in xhci_alloc_dev()
4003 xhci_free_command(xhci, command); in xhci_alloc_dev()
4006 xhci_ring_cmd_db(xhci); in xhci_alloc_dev()
4007 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_alloc_dev()
4013 xhci_err(xhci, "Error while assigning device slot ID: %s\n", in xhci_alloc_dev()
4015 xhci_err(xhci, "Max number of devices this xHCI host supports is %u.\n", in xhci_alloc_dev()
4017 readl(&xhci->cap_regs->hcs_params1))); in xhci_alloc_dev()
4018 xhci_free_command(xhci, command); in xhci_alloc_dev()
4022 xhci_free_command(xhci, command); in xhci_alloc_dev()
4024 if ((xhci->quirks & XHCI_EP_LIMIT_QUIRK)) { in xhci_alloc_dev()
4025 spin_lock_irqsave(&xhci->lock, flags); in xhci_alloc_dev()
4026 ret = xhci_reserve_host_control_ep_resources(xhci); in xhci_alloc_dev()
4028 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_alloc_dev()
4029 xhci_warn(xhci, "Not enough host resources, " in xhci_alloc_dev()
4031 xhci->num_active_eps); in xhci_alloc_dev()
4034 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_alloc_dev()
4040 if (!xhci_alloc_virt_device(xhci, slot_id, udev, GFP_NOIO)) { in xhci_alloc_dev()
4041 xhci_warn(xhci, "Could not allocate xHCI USB device data structures\n"); in xhci_alloc_dev()
4044 vdev = xhci->devs[slot_id]; in xhci_alloc_dev()
4045 slot_ctx = xhci_get_slot_ctx(xhci, vdev->out_ctx); in xhci_alloc_dev()
4050 xhci_debugfs_create_slot(xhci, slot_id); in xhci_alloc_dev()
4056 if (xhci->quirks & XHCI_RESET_ON_RESUME) in xhci_alloc_dev()
4064 xhci_disable_slot(xhci, udev->slot_id); in xhci_alloc_dev()
4065 xhci_free_virt_device(xhci, udev->slot_id); in xhci_alloc_dev()
4087 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_setup_device() local
4093 mutex_lock(&xhci->mutex); in xhci_setup_device()
4095 if (xhci->xhc_state) { /* dying, removing or halted */ in xhci_setup_device()
4101 xhci_dbg_trace(xhci, trace_xhci_dbg_address, in xhci_setup_device()
4107 virt_dev = xhci->devs[udev->slot_id]; in xhci_setup_device()
4115 xhci_warn(xhci, "Virt dev invalid for slot_id 0x%x!\n", in xhci_setup_device()
4120 slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); in xhci_setup_device()
4126 xhci_dbg(xhci, "Slot already in default state\n"); in xhci_setup_device()
4131 command = xhci_alloc_command(xhci, true, GFP_KERNEL); in xhci_setup_device()
4140 slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->in_ctx); in xhci_setup_device()
4143 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_setup_device()
4150 * virt_device realloaction after a resume with an xHCI power loss, in xhci_setup_device()
4154 xhci_setup_addressable_virt_dev(xhci, udev); in xhci_setup_device()
4157 xhci_copy_ep0_dequeue_into_input_ctx(xhci, udev); in xhci_setup_device()
4161 trace_xhci_address_ctx(xhci, virt_dev->in_ctx, in xhci_setup_device()
4165 spin_lock_irqsave(&xhci->lock, flags); in xhci_setup_device()
4167 ret = xhci_queue_address_device(xhci, command, virt_dev->in_ctx->dma, in xhci_setup_device()
4170 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_setup_device()
4171 xhci_dbg_trace(xhci, trace_xhci_dbg_address, in xhci_setup_device()
4175 xhci_ring_cmd_db(xhci); in xhci_setup_device()
4176 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_setup_device()
4188 xhci_warn(xhci, "Timeout while waiting for setup device command\n"); in xhci_setup_device()
4193 xhci_err(xhci, "Setup ERROR: setup %s command for slot %d.\n", in xhci_setup_device()
4200 mutex_unlock(&xhci->mutex); in xhci_setup_device()
4201 ret = xhci_disable_slot(xhci, udev->slot_id); in xhci_setup_device()
4202 xhci_free_virt_device(xhci, udev->slot_id); in xhci_setup_device()
4205 xhci_setup_addressable_virt_dev(xhci, udev); in xhci_setup_device()
4216 xhci_dbg_trace(xhci, trace_xhci_dbg_address, in xhci_setup_device()
4220 xhci_err(xhci, in xhci_setup_device()
4223 trace_xhci_address_ctx(xhci, virt_dev->out_ctx, 1); in xhci_setup_device()
4229 temp_64 = xhci_read_64(xhci, &xhci->op_regs->dcbaa_ptr); in xhci_setup_device()
4230 xhci_dbg_trace(xhci, trace_xhci_dbg_address, in xhci_setup_device()
4232 xhci_dbg_trace(xhci, trace_xhci_dbg_address, in xhci_setup_device()
4235 &xhci->dcbaa->dev_context_ptrs[udev->slot_id], in xhci_setup_device()
4237 le64_to_cpu(xhci->dcbaa->dev_context_ptrs[udev->slot_id])); in xhci_setup_device()
4238 xhci_dbg_trace(xhci, trace_xhci_dbg_address, in xhci_setup_device()
4241 trace_xhci_address_ctx(xhci, virt_dev->in_ctx, in xhci_setup_device()
4247 trace_xhci_address_ctx(xhci, virt_dev->out_ctx, in xhci_setup_device()
4252 slot_ctx = xhci_get_slot_ctx(xhci, virt_dev->out_ctx); in xhci_setup_device()
4255 xhci_dbg_trace(xhci, trace_xhci_dbg_address, in xhci_setup_device()
4259 mutex_unlock(&xhci->mutex); in xhci_setup_device()
4297 static int __maybe_unused xhci_change_max_exit_latency(struct xhci_hcd *xhci, in xhci_change_max_exit_latency() argument
4307 command = xhci_alloc_command_with_ctx(xhci, true, GFP_KERNEL); in xhci_change_max_exit_latency()
4311 spin_lock_irqsave(&xhci->lock, flags); in xhci_change_max_exit_latency()
4313 virt_dev = xhci->devs[udev->slot_id]; in xhci_change_max_exit_latency()
4318 * hub_port_finish_reset() is done and xhci->devs[] are re-allocated in xhci_change_max_exit_latency()
4322 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_change_max_exit_latency()
4323 xhci_free_command(xhci, command); in xhci_change_max_exit_latency()
4330 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_change_max_exit_latency()
4331 xhci_free_command(xhci, command); in xhci_change_max_exit_latency()
4332 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_change_max_exit_latency()
4337 xhci_slot_copy(xhci, command->in_ctx, virt_dev->out_ctx); in xhci_change_max_exit_latency()
4338 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_change_max_exit_latency()
4341 slot_ctx = xhci_get_slot_ctx(xhci, command->in_ctx); in xhci_change_max_exit_latency()
4346 xhci_dbg_trace(xhci, trace_xhci_dbg_context_change, in xhci_change_max_exit_latency()
4350 ret = xhci_configure_endpoint(xhci, udev, command, in xhci_change_max_exit_latency()
4354 spin_lock_irqsave(&xhci->lock, flags); in xhci_change_max_exit_latency()
4356 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_change_max_exit_latency()
4359 xhci_free_command(xhci, command); in xhci_change_max_exit_latency()
4371 static int xhci_calculate_hird_besl(struct xhci_hcd *xhci, in xhci_calculate_hird_besl() argument
4378 u2del = HCS_U2_LATENCY(xhci->hcs_params3); in xhci_calculate_hird_besl()
4415 /* xHCI l1 is set in steps of 256us, xHCI 1.0 section 5.4.11.2 */ in xhci_calculate_usb2_hw_lpm_params()
4430 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_set_usb2_hardware_lpm() local
4439 if (xhci->quirks & XHCI_HW_LPM_DISABLE) in xhci_set_usb2_hardware_lpm()
4442 if (hcd->speed >= HCD_USB3 || !xhci->hw_lpm_support || in xhci_set_usb2_hardware_lpm()
4453 spin_lock_irqsave(&xhci->lock, flags); in xhci_set_usb2_hardware_lpm()
4455 ports = xhci->usb2_rhub.ports; in xhci_set_usb2_hardware_lpm()
4461 xhci_dbg(xhci, "%s port %d USB2 hardware LPM\n", in xhci_set_usb2_hardware_lpm()
4469 * systems. See XHCI_DEFAULT_BESL definition in xhci.h in xhci_set_usb2_hardware_lpm()
4479 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_set_usb2_hardware_lpm()
4481 ret = xhci_change_max_exit_latency(xhci, udev, in xhci_set_usb2_hardware_lpm()
4485 spin_lock_irqsave(&xhci->lock, flags); in xhci_set_usb2_hardware_lpm()
4492 hird = xhci_calculate_hird_besl(xhci, udev); in xhci_set_usb2_hardware_lpm()
4509 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_set_usb2_hardware_lpm()
4510 xhci_change_max_exit_latency(xhci, udev, 0); in xhci_set_usb2_hardware_lpm()
4518 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_set_usb2_hardware_lpm()
4524 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_update_device() local
4530 port = xhci->usb3_rhub.ports[udev->portnum - 1]; in xhci_update_device()
4532 udev->tunnel_mode = xhci_port_is_tunneled(xhci, port); in xhci_update_device()
4542 if (hcd->speed >= HCD_USB3 || !udev->lpm_capable || !xhci->hw_lpm_support) in xhci_update_device()
4550 port = xhci->usb2_rhub.ports[udev->portnum - 1]; in xhci_update_device()
4661 static u16 xhci_calculate_u1_timeout(struct xhci_hcd *xhci, in xhci_calculate_u1_timeout() argument
4675 if (xhci->quirks & (XHCI_INTEL_HOST | XHCI_ZHAOXIN_HOST)) in xhci_calculate_u1_timeout()
4725 static u16 xhci_calculate_u2_timeout(struct xhci_hcd *xhci, in xhci_calculate_u2_timeout() argument
4739 if (xhci->quirks & (XHCI_INTEL_HOST | XHCI_ZHAOXIN_HOST)) in xhci_calculate_u2_timeout()
4756 static u16 xhci_call_host_update_timeout_for_endpoint(struct xhci_hcd *xhci, in xhci_call_host_update_timeout_for_endpoint() argument
4763 return xhci_calculate_u1_timeout(xhci, udev, desc); in xhci_call_host_update_timeout_for_endpoint()
4765 return xhci_calculate_u2_timeout(xhci, udev, desc); in xhci_call_host_update_timeout_for_endpoint()
4770 static int xhci_update_timeout_for_endpoint(struct xhci_hcd *xhci, in xhci_update_timeout_for_endpoint() argument
4778 alt_timeout = xhci_call_host_update_timeout_for_endpoint(xhci, udev, in xhci_update_timeout_for_endpoint()
4795 static int xhci_update_timeout_for_interface(struct xhci_hcd *xhci, in xhci_update_timeout_for_interface() argument
4804 if (xhci_update_timeout_for_endpoint(xhci, udev, in xhci_update_timeout_for_interface()
4811 static int xhci_check_tier_policy(struct xhci_hcd *xhci, in xhci_check_tier_policy() argument
4823 if (xhci->quirks & XHCI_INTEL_HOST && tier > 3) in xhci_check_tier_policy()
4825 if (xhci->quirks & XHCI_ZHAOXIN_HOST && tier > 2) in xhci_check_tier_policy()
4843 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_calculate_lpm_timeout() local
4862 if (xhci_update_timeout_for_endpoint(xhci, udev, &udev->ep0.desc, in xhci_calculate_lpm_timeout()
4896 if (xhci_update_timeout_for_interface(xhci, udev, in xhci_calculate_lpm_timeout()
4938 /* xHCI host controller max exit latency field is only 16 bits wide. */ in calculate_max_exit_latency()
4951 struct xhci_hcd *xhci; in xhci_enable_usb3_lpm_timeout() local
4957 xhci = hcd_to_xhci(hcd); in xhci_enable_usb3_lpm_timeout()
4962 if (!xhci || !(xhci->quirks & XHCI_LPM_SUPPORT) || in xhci_enable_usb3_lpm_timeout()
4963 !xhci->devs[udev->slot_id]) in xhci_enable_usb3_lpm_timeout()
4966 if (xhci_check_tier_policy(xhci, udev, state) < 0) in xhci_enable_usb3_lpm_timeout()
4971 port = xhci->usb3_rhub.ports[udev->portnum - 1]; in xhci_enable_usb3_lpm_timeout()
4984 ret = xhci_change_max_exit_latency(xhci, udev, mel); in xhci_enable_usb3_lpm_timeout()
4993 struct xhci_hcd *xhci; in xhci_disable_usb3_lpm_timeout() local
4996 xhci = hcd_to_xhci(hcd); in xhci_disable_usb3_lpm_timeout()
4997 if (!xhci || !(xhci->quirks & XHCI_LPM_SUPPORT) || in xhci_disable_usb3_lpm_timeout()
4998 !xhci->devs[udev->slot_id]) in xhci_disable_usb3_lpm_timeout()
5002 return xhci_change_max_exit_latency(xhci, udev, mel); in xhci_disable_usb3_lpm_timeout()
5038 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_update_hub_device() local
5051 vdev = xhci->devs[hdev->slot_id]; in xhci_update_hub_device()
5053 xhci_warn(xhci, "Cannot update hub desc for unknown device.\n"); in xhci_update_hub_device()
5057 config_cmd = xhci_alloc_command_with_ctx(xhci, true, mem_flags); in xhci_update_hub_device()
5063 xhci_warn(xhci, "%s: Could not get input context, bad type.\n", in xhci_update_hub_device()
5065 xhci_free_command(xhci, config_cmd); in xhci_update_hub_device()
5069 spin_lock_irqsave(&xhci->lock, flags); in xhci_update_hub_device()
5071 xhci_alloc_tt_info(xhci, vdev, hdev, tt, GFP_ATOMIC)) { in xhci_update_hub_device()
5072 xhci_dbg(xhci, "Could not allocate xHCI TT structure.\n"); in xhci_update_hub_device()
5073 xhci_free_command(xhci, config_cmd); in xhci_update_hub_device()
5074 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_update_hub_device()
5078 xhci_slot_copy(xhci, config_cmd->in_ctx, vdev->out_ctx); in xhci_update_hub_device()
5080 slot_ctx = xhci_get_slot_ctx(xhci, config_cmd->in_ctx); in xhci_update_hub_device()
5084 * but it may be already set to 1 when setup an xHCI virtual in xhci_update_hub_device()
5092 if (xhci->hci_version > 0x95) { in xhci_update_hub_device()
5093 xhci_dbg(xhci, "xHCI version %x needs hub " in xhci_update_hub_device()
5095 (unsigned int) xhci->hci_version); in xhci_update_hub_device()
5101 * xHCI 1.0: this field shall be 0 if the device is not a in xhci_update_hub_device()
5107 if (xhci->hci_version < 0x100 || hdev->speed == USB_SPEED_HIGH) in xhci_update_hub_device()
5111 xhci_dbg(xhci, "xHCI version %x doesn't need hub " in xhci_update_hub_device()
5113 (unsigned int) xhci->hci_version); in xhci_update_hub_device()
5116 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_update_hub_device()
5118 xhci_dbg(xhci, "Set up %s for hub device.\n", in xhci_update_hub_device()
5119 (xhci->hci_version > 0x95) ? in xhci_update_hub_device()
5125 if (xhci->hci_version > 0x95) in xhci_update_hub_device()
5126 ret = xhci_configure_endpoint(xhci, hdev, config_cmd, in xhci_update_hub_device()
5129 ret = xhci_configure_endpoint(xhci, hdev, config_cmd, in xhci_update_hub_device()
5132 xhci_free_command(xhci, config_cmd); in xhci_update_hub_device()
5139 struct xhci_hcd *xhci = hcd_to_xhci(hcd); in xhci_get_frame() local
5141 return readl(&xhci->run_regs->microframe_index) >> 3; in xhci_get_frame()
5144 static void xhci_hcd_init_usb2_data(struct xhci_hcd *xhci, struct usb_hcd *hcd) in xhci_hcd_init_usb2_data() argument
5146 xhci->usb2_rhub.hcd = hcd; in xhci_hcd_init_usb2_data()
5150 * USB 2.0 roothub under xHCI has an integrated TT, in xhci_hcd_init_usb2_data()
5157 static void xhci_hcd_init_usb3_data(struct xhci_hcd *xhci, struct usb_hcd *hcd) in xhci_hcd_init_usb3_data() argument
5162 * Early xHCI 1.1 spec did not mention USB 3.1 capable hosts in xhci_hcd_init_usb3_data()
5165 * This was later clarified in xHCI 1.2. in xhci_hcd_init_usb3_data()
5170 if (xhci->usb3_rhub.min_rev == 0x1) in xhci_hcd_init_usb3_data()
5173 minor_rev = xhci->usb3_rhub.min_rev / 0x10; in xhci_hcd_init_usb3_data()
5189 xhci_info(xhci, "Host supports USB 3.%x %sSuperSpeed\n", in xhci_hcd_init_usb3_data()
5192 xhci->usb3_rhub.hcd = hcd; in xhci_hcd_init_usb3_data()
5197 struct xhci_hcd *xhci; in xhci_gen_setup() local
5211 /* XHCI controllers don't stop the ep queue on short packets :| */ in xhci_gen_setup()
5214 xhci = hcd_to_xhci(hcd); in xhci_gen_setup()
5217 xhci_hcd_init_usb3_data(xhci, hcd); in xhci_gen_setup()
5221 mutex_init(&xhci->mutex); in xhci_gen_setup()
5222 xhci->main_hcd = hcd; in xhci_gen_setup()
5223 xhci->cap_regs = hcd->regs; in xhci_gen_setup()
5224 xhci->op_regs = hcd->regs + in xhci_gen_setup()
5225 HC_LENGTH(readl(&xhci->cap_regs->hc_capbase)); in xhci_gen_setup()
5226 xhci->run_regs = hcd->regs + in xhci_gen_setup()
5227 (readl(&xhci->cap_regs->run_regs_off) & RTSOFF_MASK); in xhci_gen_setup()
5229 xhci->hcs_params1 = readl(&xhci->cap_regs->hcs_params1); in xhci_gen_setup()
5230 xhci->hcs_params2 = readl(&xhci->cap_regs->hcs_params2); in xhci_gen_setup()
5231 xhci->hcs_params3 = readl(&xhci->cap_regs->hcs_params3); in xhci_gen_setup()
5232 xhci->hci_version = HC_VERSION(readl(&xhci->cap_regs->hc_capbase)); in xhci_gen_setup()
5233 xhci->hcc_params = readl(&xhci->cap_regs->hcc_params); in xhci_gen_setup()
5234 if (xhci->hci_version > 0x100) in xhci_gen_setup()
5235 xhci->hcc_params2 = readl(&xhci->cap_regs->hcc_params2); in xhci_gen_setup()
5237 /* xhci-plat or xhci-pci might have set max_interrupters already */ in xhci_gen_setup()
5238 if ((!xhci->max_interrupters) || in xhci_gen_setup()
5239 xhci->max_interrupters > HCS_MAX_INTRS(xhci->hcs_params1)) in xhci_gen_setup()
5240 xhci->max_interrupters = HCS_MAX_INTRS(xhci->hcs_params1); in xhci_gen_setup()
5242 xhci->quirks |= quirks; in xhci_gen_setup()
5245 get_quirks(dev, xhci); in xhci_gen_setup()
5247 /* In xhci controllers which follow xhci 1.0 spec gives a spurious in xhci_gen_setup()
5251 if (xhci->hci_version > 0x96) in xhci_gen_setup()
5252 xhci->quirks |= XHCI_SPURIOUS_SUCCESS; in xhci_gen_setup()
5255 retval = xhci_halt(xhci); in xhci_gen_setup()
5259 xhci_zero_64b_regs(xhci); in xhci_gen_setup()
5261 xhci_dbg(xhci, "Resetting HCD\n"); in xhci_gen_setup()
5263 retval = xhci_reset(xhci, XHCI_RESET_LONG_USEC); in xhci_gen_setup()
5266 xhci_dbg(xhci, "Reset complete\n"); in xhci_gen_setup()
5269 * On some xHCI controllers (e.g. R-Car SoCs), the AC64 bit (bit 0) in xhci_gen_setup()
5272 * bit of xhci->hcc_params to call dma_set_coherent_mask(dev, in xhci_gen_setup()
5275 if (xhci->quirks & XHCI_NO_64BIT_SUPPORT) in xhci_gen_setup()
5276 xhci->hcc_params &= ~BIT(0); in xhci_gen_setup()
5280 if (HCC_64BIT_ADDR(xhci->hcc_params) && in xhci_gen_setup()
5282 xhci_dbg(xhci, "Enabling 64-bit DMA addresses.\n"); in xhci_gen_setup()
5292 xhci_dbg(xhci, "Enabling 32-bit DMA addresses.\n"); in xhci_gen_setup()
5296 xhci_dbg(xhci, "Calling HCD init\n"); in xhci_gen_setup()
5301 xhci_dbg(xhci, "Called HCD init\n"); in xhci_gen_setup()
5304 xhci_hcd_init_usb3_data(xhci, hcd); in xhci_gen_setup()
5306 xhci_hcd_init_usb2_data(xhci, hcd); in xhci_gen_setup()
5308 xhci_info(xhci, "hcc params 0x%08x hci version 0x%x quirks 0x%016llx\n", in xhci_gen_setup()
5309 xhci->hcc_params, xhci->hci_version, xhci->quirks); in xhci_gen_setup()
5318 struct xhci_hcd *xhci; in xhci_clear_tt_buffer_complete() local
5324 xhci = hcd_to_xhci(hcd); in xhci_clear_tt_buffer_complete()
5326 spin_lock_irqsave(&xhci->lock, flags); in xhci_clear_tt_buffer_complete()
5331 xhci->devs[slot_id]->eps[ep_index].ep_state &= ~EP_CLEARING_TT; in xhci_clear_tt_buffer_complete()
5332 xhci_ring_doorbell_for_active_rings(xhci, slot_id, ep_index); in xhci_clear_tt_buffer_complete()
5333 spin_unlock_irqrestore(&xhci->lock, flags); in xhci_clear_tt_buffer_complete()
5337 .description = "xhci-hcd",
5338 .product_desc = "xHCI Host Controller",