Merge tag 'imx-soc' of git://git.pengutronix.de/git/imx/linux-2.6 into next/soc

From Sascha Hauer <s.hauer@pengutronix.de>:

ARM i.MX SoC updates

based on imx-multiplatform branch.

* tag 'imx-soc' of git://git.pengutronix.de/git/imx/linux-2.6:
  ARM i.MX51 babbage: Add display support
  ARM i.MX6: Add IPU support
  ARM i.MX51: Add IPU support
  ARM i.MX53: Add IPU support
  ARM i.MX5: switch IPU clk support to devicetree bindings
  ARM i.MX6: fix ldb_di_sel mux
  ARM i.MX51: setup MIPI during startup
  mx2_camera: Fix regression caused by clock conversion
  ARM: clk-imx27: Add missing clock for mx2-camera
  ARM i.MX27: Fix low reference clock path
  ARM: dts: imx27-3ds: Remove local watchdog inclusion
  watchdog: Support imx watchdog on SOC_IMX53
  ARM: mach-imx: Support for DryIce RTC in i.MX53
  ARM : i.MX27 : split code for allocation of ressources of camera and eMMA

Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 80 insertions, 0 deletions

diff --git a/drivers/xen/fallback.c b/drivers/xen/fallback.c
new file mode 100644
index 00000000000..0ef7c4d40f8
--- /dev/null
+++ b/drivers/xen/fallback.c
@@ -0,0 +1,80 @@
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/bug.h>
+#include <linux/export.h>
+#include <asm/hypervisor.h>
+#include <asm/xen/hypercall.h>
+
+int xen_event_channel_op_compat(int cmd, void *arg)
+{
+	struct evtchn_op op;
+	int rc;
+
+	op.cmd = cmd;
+	memcpy(&op.u, arg, sizeof(op.u));
+	rc = _hypercall1(int, event_channel_op_compat, &op);
+
+	switch (cmd) {
+	case EVTCHNOP_close:
+	case EVTCHNOP_send:
+	case EVTCHNOP_bind_vcpu:
+	case EVTCHNOP_unmask:
+		/* no output */
+		break;
+
+#define COPY_BACK(eop) \
+	case EVTCHNOP_##eop: \
+		memcpy(arg, &op.u.eop, sizeof(op.u.eop)); \
+		break
+
+	COPY_BACK(bind_interdomain);
+	COPY_BACK(bind_virq);
+	COPY_BACK(bind_pirq);
+	COPY_BACK(status);
+	COPY_BACK(alloc_unbound);
+	COPY_BACK(bind_ipi);
+#undef COPY_BACK
+
+	default:
+		WARN_ON(rc != -ENOSYS);
+		break;
+	}
+
+	return rc;
+}
+EXPORT_SYMBOL_GPL(xen_event_channel_op_compat);
+
+int HYPERVISOR_physdev_op_compat(int cmd, void *arg)
+{
+	struct physdev_op op;
+	int rc;
+
+	op.cmd = cmd;
+	memcpy(&op.u, arg, sizeof(op.u));
+	rc = _hypercall1(int, physdev_op_compat, &op);
+
+	switch (cmd) {
+	case PHYSDEVOP_IRQ_UNMASK_NOTIFY:
+	case PHYSDEVOP_set_iopl:
+	case PHYSDEVOP_set_iobitmap:
+	case PHYSDEVOP_apic_write:
+		/* no output */
+		break;
+
+#define COPY_BACK(pop, fld) \
+	case PHYSDEVOP_##pop: \
+		memcpy(arg, &op.u.fld, sizeof(op.u.fld)); \
+		break
+
+	COPY_BACK(irq_status_query, irq_status_query);
+	COPY_BACK(apic_read, apic_op);
+	COPY_BACK(ASSIGN_VECTOR, irq_op);
+#undef COPY_BACK
+
+	default:
+		WARN_ON(rc != -ENOSYS);
+		break;
+	}
+
+	return rc;
+}