xenpci.c (ef90af83a58199ef3980d8c9a7dad07ec9b4bea3) xenpci.c (428b7ca290208e6b15d46440cd8d6309dc92dd2d)
1/*
2 * Copyright (c) 2008 Citrix Systems, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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72
73 error = BUS_SETUP_INTR(device_get_parent(device), device,
74 scp->res_irq, INTR_MPSAFE|INTR_TYPE_MISC,
75 xenpci_intr_filter, NULL, /*trap_frame*/NULL,
76 &scp->intr_cookie);
77 if (error)
78 return error;
79
1/*
2 * Copyright (c) 2008 Citrix Systems, Inc.
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright

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72
73 error = BUS_SETUP_INTR(device_get_parent(device), device,
74 scp->res_irq, INTR_MPSAFE|INTR_TYPE_MISC,
75 xenpci_intr_filter, NULL, /*trap_frame*/NULL,
76 &scp->intr_cookie);
77 if (error)
78 return error;
79
80#ifdef SMP
80 /*
81 * When using the PCI event delivery callback we cannot assign
82 * events to specific vCPUs, so all events are delivered to vCPU#0 by
83 * Xen. Since the PCI interrupt can fire on any CPU by default, we
84 * need to bind it to vCPU#0 in order to ensure that
85 * xen_intr_handle_upcall always gets called on vCPU#0.
86 */
87 error = BUS_BIND_INTR(device_get_parent(device), device,
88 scp->res_irq, 0);
89 if (error)
90 return error;
81 /*
82 * When using the PCI event delivery callback we cannot assign
83 * events to specific vCPUs, so all events are delivered to vCPU#0 by
84 * Xen. Since the PCI interrupt can fire on any CPU by default, we
85 * need to bind it to vCPU#0 in order to ensure that
86 * xen_intr_handle_upcall always gets called on vCPU#0.
87 */
88 error = BUS_BIND_INTR(device_get_parent(device), device,
89 scp->res_irq, 0);
90 if (error)
91 return error;
92#endif
91
92 xen_hvm_set_callback(device);
93 return (0);
94}
95
96/*
97 * Deallocate anything allocated by xenpci_allocate_resources.
98 */

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304 * allocated on behalf of this driver.
305 */
306 return (xenpci_deallocate_resources(dev));
307}
308
309static int
310xenpci_suspend(device_t dev)
311{
93
94 xen_hvm_set_callback(device);
95 return (0);
96}
97
98/*
99 * Deallocate anything allocated by xenpci_allocate_resources.
100 */

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306 * allocated on behalf of this driver.
307 */
308 return (xenpci_deallocate_resources(dev));
309}
310
311static int
312xenpci_suspend(device_t dev)
313{
312 struct xenpci_softc *scp = device_get_softc(dev);
313 device_t parent = device_get_parent(dev);
314
315 if (scp->intr_cookie != NULL) {
316 if (BUS_TEARDOWN_INTR(parent, dev, scp->res_irq,
317 scp->intr_cookie) != 0)
318 printf("intr teardown failed.. continuing\n");
319 scp->intr_cookie = NULL;
320 }
321
322 return (bus_generic_suspend(dev));
323}
324
325static int
326xenpci_resume(device_t dev)
327{
314 return (bus_generic_suspend(dev));
315}
316
317static int
318xenpci_resume(device_t dev)
319{
328 struct xenpci_softc *scp = device_get_softc(dev);
329 device_t parent = device_get_parent(dev);
330
331 BUS_SETUP_INTR(parent, dev, scp->res_irq,
332 INTR_MPSAFE|INTR_TYPE_MISC, xenpci_intr_filter, NULL,
333 /*trap_frame*/NULL, &scp->intr_cookie);
334 xen_hvm_set_callback(dev);
335 return (bus_generic_resume(dev));
336}
337
338static device_method_t xenpci_methods[] = {
339 /* Device interface */
340 DEVMETHOD(device_probe, xenpci_probe),
341 DEVMETHOD(device_attach, xenpci_attach),

--- 21 unchanged lines hidden --- 		320 xen_hvm_set_callback(dev);
321 return (bus_generic_resume(dev));
322}
323
324static device_method_t xenpci_methods[] = {
325 /* Device interface */
326 DEVMETHOD(device_probe, xenpci_probe),
327 DEVMETHOD(device_attach, xenpci_attach),

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