aboutsummaryrefslogtreecommitdiff
path: root/drivers/xen
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 13:23:01 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-10-01 13:23:01 -0700
commitd9a807461fc8cc0d6ba589ea0730d139122af012 (patch)
tree9d8c7a044659d821748dd40718a22557c04e4299 /drivers/xen
parent3498d13b8090c0b0ef911409fbc503a7c4cca6ef (diff)
parent70c048a238c780c226eb4b115ebaa908cb3b34ec (diff)
downloadlinux-linaro-stable-d9a807461fc8cc0d6ba589ea0730d139122af012.tar.gz
Merge tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB changes from Greg Kroah-Hartman: "Here is the big USB pull request for 3.7-rc1 There are lots of gadget driver changes (including copying a bunch of files into the drivers/staging/ccg/ directory so that the other gadget drivers can be fixed up properly without breaking that driver), and we remove the old obsolete ub.c driver from the tree. There are also the usual XHCI set of updates, and other various driver changes and updates. We also are trying hard to remove the old dbg() macro, but the final bits of that removal will be coming in through the networking tree before we can delete it for good. All of these patches have been in the linux-next tree. Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>" Fix up several annoying - but fairly mindless - conflicts due to the termios structure having moved into the tty device, and often clashing with dbg -> dev_dbg conversion. * tag 'usb-3.6' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (339 commits) USB: ezusb: move ezusb.c from drivers/usb/serial to drivers/usb/misc USB: uas: fix gcc warning USB: uas: fix locking USB: Fix race condition when removing host controllers USB: uas: add locking USB: uas: fix abort USB: uas: remove aborted field, replace with status bit. USB: uas: fix task management USB: uas: keep track of command urbs xhci: Intel Panther Point BEI quirk. powerpc/usb: remove checking PHY_CLK_VALID for UTMI PHY USB: ftdi_sio: add TIAO USB Multi-Protocol Adapter (TUMPA) support Revert "usb : Add sysfs files to control port power." USB: serial: remove vizzini driver usb: host: xhci: Fix Null pointer dereferencing with 71c731a for non-x86 systems Increase XHCI suspend timeout to 16ms USB: ohci-at91: fix null pointer in ohci_hcd_at91_overcurrent_irq USB: sierra_ms: don't keep unused variable fsl/usb: Add support for USB controller version 2.4 USB: qcaux: add Pantech vendor class match ...
Diffstat (limited to 'drivers/xen')
-rw-r--r--drivers/xen/Makefile2
-rw-r--r--drivers/xen/dbgp.c48
2 files changed, 49 insertions, 1 deletions
diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
index d80bea5535a2..a4a3cab2f459 100644
--- a/drivers/xen/Makefile
+++ b/drivers/xen/Makefile
@@ -18,7 +18,7 @@ obj-$(CONFIG_XEN_PVHVM) += platform-pci.o
obj-$(CONFIG_XEN_TMEM) += tmem.o
obj-$(CONFIG_SWIOTLB_XEN) += swiotlb-xen.o
obj-$(CONFIG_XEN_DOM0) += pcpu.o
-obj-$(CONFIG_XEN_DOM0) += pci.o acpi.o
+obj-$(CONFIG_XEN_DOM0) += pci.o dbgp.o acpi.o
obj-$(CONFIG_XEN_MCE_LOG) += mcelog.o
obj-$(CONFIG_XEN_PCIDEV_BACKEND) += xen-pciback/
obj-$(CONFIG_XEN_PRIVCMD) += xen-privcmd.o
diff --git a/drivers/xen/dbgp.c b/drivers/xen/dbgp.c
new file mode 100644
index 000000000000..42569c77ccc8
--- /dev/null
+++ b/drivers/xen/dbgp.c
@@ -0,0 +1,48 @@
+#include <linux/pci.h>
+#include <linux/usb.h>
+#include <linux/usb/ehci_def.h>
+#include <linux/usb/hcd.h>
+#include <asm/xen/hypercall.h>
+#include <xen/interface/physdev.h>
+#include <xen/xen.h>
+
+static int xen_dbgp_op(struct usb_hcd *hcd, int op)
+{
+ const struct device *ctrlr = hcd_to_bus(hcd)->controller;
+ struct physdev_dbgp_op dbgp;
+
+ if (!xen_initial_domain())
+ return 0;
+
+ dbgp.op = op;
+
+#ifdef CONFIG_PCI
+ if (ctrlr->bus == &pci_bus_type) {
+ const struct pci_dev *pdev = to_pci_dev(ctrlr);
+
+ dbgp.u.pci.seg = pci_domain_nr(pdev->bus);
+ dbgp.u.pci.bus = pdev->bus->number;
+ dbgp.u.pci.devfn = pdev->devfn;
+ dbgp.bus = PHYSDEVOP_DBGP_BUS_PCI;
+ } else
+#endif
+ dbgp.bus = PHYSDEVOP_DBGP_BUS_UNKNOWN;
+
+ return HYPERVISOR_physdev_op(PHYSDEVOP_dbgp_op, &dbgp);
+}
+
+int xen_dbgp_reset_prep(struct usb_hcd *hcd)
+{
+ return xen_dbgp_op(hcd, PHYSDEVOP_DBGP_RESET_PREPARE);
+}
+
+int xen_dbgp_external_startup(struct usb_hcd *hcd)
+{
+ return xen_dbgp_op(hcd, PHYSDEVOP_DBGP_RESET_DONE);
+}
+
+#ifndef CONFIG_EARLY_PRINTK_DBGP
+#include <linux/export.h>
+EXPORT_SYMBOL_GPL(xen_dbgp_reset_prep);
+EXPORT_SYMBOL_GPL(xen_dbgp_external_startup);
+#endif