diff options
| -rw-r--r-- | drivers/usb/host/Kconfig | 9 | ||||
| -rw-r--r-- | drivers/usb/host/xhci-mem.c | 70 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.c | 74 | ||||
| -rw-r--r-- | drivers/usb/host/xhci.h | 13 |
4 files changed, 1 insertions, 165 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig index cf521d6551dd..28bc5befeae3 100644 --- a/drivers/usb/host/Kconfig +++ b/drivers/usb/host/Kconfig @@ -29,15 +29,6 @@ if USB_XHCI_HCD config USB_XHCI_PLATFORM tristate -config USB_XHCI_HCD_DEBUGGING - bool "Debugging for the xHCI host controller" - ---help--- - Say 'Y' to turn on debugging for the xHCI host controller driver. - This will spew debugging output, even in interrupt context. - This should only be used for debugging xHCI driver bugs. - - If unsure, say N. - endif # USB_XHCI_HCD config USB_EHCI_HCD diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c index df6978abd7e6..b881bc1697f9 100644 --- a/drivers/usb/host/xhci-mem.c +++ b/drivers/usb/host/xhci-mem.c @@ -481,17 +481,6 @@ struct xhci_ring *xhci_dma_to_transfer_ring( return ep->ring; } -/* Only use this when you know stream_info is valid */ -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -static struct xhci_ring *dma_to_stream_ring( - struct xhci_stream_info *stream_info, - u64 address) -{ - return radix_tree_lookup(&stream_info->trb_address_map, - address >> TRB_SEGMENT_SHIFT); -} -#endif /* CONFIG_USB_XHCI_HCD_DEBUGGING */ - struct xhci_ring *xhci_stream_id_to_ring( struct xhci_virt_device *dev, unsigned int ep_index, @@ -509,58 +498,6 @@ struct xhci_ring *xhci_stream_id_to_ring( return ep->stream_info->stream_rings[stream_id]; } -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -static int xhci_test_radix_tree(struct xhci_hcd *xhci, - unsigned int num_streams, - struct xhci_stream_info *stream_info) -{ - u32 cur_stream; - struct xhci_ring *cur_ring; - u64 addr; - - for (cur_stream = 1; cur_stream < num_streams; cur_stream++) { - struct xhci_ring *mapped_ring; - int trb_size = sizeof(union xhci_trb); - - cur_ring = stream_info->stream_rings[cur_stream]; - for (addr = cur_ring->first_seg->dma; - addr < cur_ring->first_seg->dma + TRB_SEGMENT_SIZE; - addr += trb_size) { - mapped_ring = dma_to_stream_ring(stream_info, addr); - if (cur_ring != mapped_ring) { - xhci_warn(xhci, "WARN: DMA address 0x%08llx " - "didn't map to stream ID %u; " - "mapped to ring %p\n", - (unsigned long long) addr, - cur_stream, - mapped_ring); - return -EINVAL; - } - } - /* One TRB after the end of the ring segment shouldn't return a - * pointer to the current ring (although it may be a part of a - * different ring). - */ - mapped_ring = dma_to_stream_ring(stream_info, addr); - if (mapped_ring != cur_ring) { - /* One TRB before should also fail */ - addr = cur_ring->first_seg->dma - trb_size; - mapped_ring = dma_to_stream_ring(stream_info, addr); - } - if (mapped_ring == cur_ring) { - xhci_warn(xhci, "WARN: Bad DMA address 0x%08llx " - "mapped to valid stream ID %u; " - "mapped ring = %p\n", - (unsigned long long) addr, - cur_stream, - mapped_ring); - return -EINVAL; - } - } - return 0; -} -#endif /* CONFIG_USB_XHCI_HCD_DEBUGGING */ - /* * Change an endpoint's internal structure so it supports stream IDs. The * number of requested streams includes stream 0, which cannot be used by device @@ -687,13 +624,6 @@ struct xhci_stream_info *xhci_alloc_stream_info(struct xhci_hcd *xhci, * was any other way, the host controller would assume the ring is * "empty" and wait forever for data to be queued to that stream ID). */ -#if XHCI_DEBUG - /* Do a little test on the radix tree to make sure it returns the - * correct values. - */ - if (xhci_test_radix_tree(xhci, num_streams, stream_info)) - goto cleanup_rings; -#endif return stream_info; diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c index 0208ffff99dc..b87404535c29 100644 --- a/drivers/usb/host/xhci.c +++ b/drivers/usb/host/xhci.c @@ -528,57 +528,6 @@ int xhci_init(struct usb_hcd *hcd) /*-------------------------------------------------------------------------*/ -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -static void xhci_event_ring_work(unsigned long arg) -{ - unsigned long flags; - int temp; - u64 temp_64; - struct xhci_hcd *xhci = (struct xhci_hcd *) arg; - int i, j; - - xhci_dbg(xhci, "Poll event ring: %lu\n", jiffies); - - spin_lock_irqsave(&xhci->lock, flags); - temp = xhci_readl(xhci, &xhci->op_regs->status); - xhci_dbg(xhci, "op reg status = 0x%x\n", temp); - if (temp == 0xffffffff || (xhci->xhc_state & XHCI_STATE_DYING) || - (xhci->xhc_state & XHCI_STATE_HALTED)) { - xhci_dbg(xhci, "HW died, polling stopped.\n"); - spin_unlock_irqrestore(&xhci->lock, flags); - return; - } - - temp = xhci_readl(xhci, &xhci->ir_set->irq_pending); - xhci_dbg(xhci, "ir_set 0 pending = 0x%x\n", temp); - xhci_dbg(xhci, "HC error bitmask = 0x%x\n", xhci->error_bitmask); - xhci->error_bitmask = 0; - xhci_dbg(xhci, "Event ring:\n"); - xhci_debug_segment(xhci, xhci->event_ring->deq_seg); - xhci_dbg_ring_ptrs(xhci, xhci->event_ring); - temp_64 = xhci_read_64(xhci, &xhci->ir_set->erst_dequeue); - temp_64 &= ~ERST_PTR_MASK; - xhci_dbg(xhci, "ERST deq = 64'h%0lx\n", (long unsigned int) temp_64); - xhci_dbg(xhci, "Command ring:\n"); - xhci_debug_segment(xhci, xhci->cmd_ring->deq_seg); - xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring); - xhci_dbg_cmd_ptrs(xhci); - for (i = 0; i < MAX_HC_SLOTS; ++i) { - if (!xhci->devs[i]) - continue; - for (j = 0; j < 31; ++j) { - xhci_dbg_ep_rings(xhci, i, j, &xhci->devs[i]->eps[j]); - } - } - spin_unlock_irqrestore(&xhci->lock, flags); - - if (!xhci->zombie) - mod_timer(&xhci->event_ring_timer, jiffies + POLL_TIMEOUT * HZ); - else - xhci_dbg(xhci, "Quit polling the event ring.\n"); -} -#endif - static int xhci_run_finished(struct xhci_hcd *xhci) { if (xhci_start(xhci)) { @@ -628,17 +577,6 @@ int xhci_run(struct usb_hcd *hcd) if (ret) return ret; -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING - init_timer(&xhci->event_ring_timer); - xhci->event_ring_timer.data = (unsigned long) xhci; - xhci->event_ring_timer.function = xhci_event_ring_work; - /* Poll the event ring */ - xhci->event_ring_timer.expires = jiffies + POLL_TIMEOUT * HZ; - xhci->zombie = 0; - xhci_dbg(xhci, "Setting event ring polling timer\n"); - add_timer(&xhci->event_ring_timer); -#endif - xhci_dbg(xhci, "Command ring memory map follows:\n"); xhci_debug_ring(xhci, xhci->cmd_ring); xhci_dbg_ring_ptrs(xhci, xhci->cmd_ring); @@ -725,12 +663,6 @@ void xhci_stop(struct usb_hcd *hcd) xhci_cleanup_msix(xhci); -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING - /* Tell the event ring poll function not to reschedule */ - xhci->zombie = 1; - del_timer_sync(&xhci->event_ring_timer); -#endif - /* Deleting Compliance Mode Recovery Timer */ if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && (!(xhci_all_ports_seen_u0(xhci)))) { @@ -1011,12 +943,6 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated) spin_unlock_irq(&xhci->lock); xhci_cleanup_msix(xhci); -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING - /* Tell the event ring poll function not to reschedule */ - xhci->zombie = 1; - del_timer_sync(&xhci->event_ring_timer); -#endif - xhci_dbg(xhci, "// Disabling event ring interrupts\n"); temp = xhci_readl(xhci, &xhci->op_regs->status); xhci_writel(xhci, temp & ~STS_EINT, &xhci->op_regs->status); diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h index 0a74d10be8a1..4d43531f5fcf 100644 --- a/drivers/usb/host/xhci.h +++ b/drivers/usb/host/xhci.h @@ -1490,11 +1490,6 @@ struct xhci_hcd { struct dma_pool *small_streams_pool; struct dma_pool *medium_streams_pool; -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING - /* Poll the rings - for debugging */ - struct timer_list event_ring_timer; - int zombie; -#endif /* Host controller watchdog timer structures */ unsigned int xhc_state; @@ -1579,14 +1574,8 @@ static inline struct usb_hcd *xhci_to_hcd(struct xhci_hcd *xhci) return xhci->main_hcd; } -#ifdef CONFIG_USB_XHCI_HCD_DEBUGGING -#define XHCI_DEBUG 1 -#else -#define XHCI_DEBUG 0 -#endif - #define xhci_dbg(xhci, fmt, args...) \ - do { if (XHCI_DEBUG) dev_dbg(xhci_to_hcd(xhci)->self.controller , fmt , ## args); } while (0) + dev_dbg(xhci_to_hcd(xhci)->self.controller , fmt , ## args) #define xhci_err(xhci, fmt, args...) \ dev_err(xhci_to_hcd(xhci)->self.controller , fmt , ## args) #define xhci_warn(xhci, fmt, args...) \ |