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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-11 00:05:02 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-08-11 00:05:02 +0200 |
| commit | 9895850b23886e030cd1e7241d5529a57e969c3d (patch) | |
| tree | 1061626db450aeb72dcfcd247c24b33e5238c8c4 /drivers/usb/host/xhci-pci.c | |
| parent | Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty-2.6 (diff) | |
| parent | USB: serial: fix stalled writes (diff) | |
| download | linux-9895850b23886e030cd1e7241d5529a57e969c3d.tar.xz linux-9895850b23886e030cd1e7241d5529a57e969c3d.zip | |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb-2.6: (148 commits)
USB: serial: fix stalled writes
USB: remove fake "address-of" expressions
USB: fix thread-unsafe anchor utiliy routines
USB: usbtest: support test device with only one iso-in or iso-out endpoint
USB: usbtest: avoid to free coherent buffer in atomic context
USB: xhci: Set DMA mask for host.
USB: xhci: Don't flush doorbell writes.
USB: xhci: Reduce reads and writes of interrupter registers.
USB: xhci: Make xhci_set_hc_event_deq() static.
USB: xhci: Minimize HW event ring dequeue pointer writes.
USB: xhci: Make xhci_handle_event() static.
USB: xhci: Remove unnecessary reads of IRQ_PENDING register.
USB: xhci: Performance - move xhci_work() into xhci_irq()
USB: xhci: Performance - move interrupt handlers into xhci-ring.c
USB: xhci: Performance - move functions that find ep ring.
USB:: fix linux/usb.h kernel-doc warnings
USB: add USB serial ssu100 driver
USB: usb-storage: implement autosuspend
USB: ehci: fix remove of ehci debugfs dir
USB: Add USB 2.0 to ssb ohci driver
...
Diffstat (limited to 'drivers/usb/host/xhci-pci.c')
| -rw-r--r-- | drivers/usb/host/xhci-pci.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c index 11482b6b9381..f7efe025beda 100644 --- a/drivers/usb/host/xhci-pci.c +++ b/drivers/usb/host/xhci-pci.c @@ -53,6 +53,7 @@ static int xhci_pci_setup(struct usb_hcd *hcd) struct xhci_hcd *xhci = hcd_to_xhci(hcd); struct pci_dev *pdev = to_pci_dev(hcd->self.controller); int retval; + u32 temp; hcd->self.sg_tablesize = TRBS_PER_SEGMENT - 2; @@ -93,6 +94,14 @@ static int xhci_pci_setup(struct usb_hcd *hcd) return retval; xhci_dbg(xhci, "Reset complete\n"); + temp = xhci_readl(xhci, &xhci->cap_regs->hcc_params); + if (HCC_64BIT_ADDR(temp)) { + xhci_dbg(xhci, "Enabling 64-bit DMA addresses.\n"); + dma_set_mask(hcd->self.controller, DMA_BIT_MASK(64)); + } else { + dma_set_mask(hcd->self.controller, DMA_BIT_MASK(32)); + } + xhci_dbg(xhci, "Calling HCD init\n"); /* Initialize HCD and host controller data structures. */ retval = xhci_init(hcd); |