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intel_drv.c (278606) intel_drv.c (280260)
1/*-
1/*-
2 * Copyright (c) 2013 The FreeBSD Foundation
2 * Copyright (c) 2013-2015 The FreeBSD Foundation
3 * All rights reserved.
4 *
5 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
6 * under sponsorship from the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:

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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
3 * All rights reserved.
4 *
5 * This software was developed by Konstantin Belousov <kib@FreeBSD.org>
6 * under sponsorship from the FreeBSD Foundation.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:

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23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30#include <sys/cdefs.h>
31__FBSDID("$FreeBSD: head/sys/x86/iommu/intel_drv.c 278606 2015-02-11 23:30:46Z kib $");
31__FBSDID("$FreeBSD: head/sys/x86/iommu/intel_drv.c 280260 2015-03-19 13:57:47Z kib $");
32
33#include "opt_acpi.h"
34#if defined(__amd64__)
35#define DEV_APIC
36#else
37#include "opt_apic.h"
38#endif
39#include "opt_ddb.h"

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45#include <sys/malloc.h>
46#include <sys/memdesc.h>
47#include <sys/module.h>
48#include <sys/rman.h>
49#include <sys/rwlock.h>
50#include <sys/smp.h>
51#include <sys/taskqueue.h>
52#include <sys/tree.h>
32
33#include "opt_acpi.h"
34#if defined(__amd64__)
35#define DEV_APIC
36#else
37#include "opt_apic.h"
38#endif
39#include "opt_ddb.h"

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45#include <sys/malloc.h>
46#include <sys/memdesc.h>
47#include <sys/module.h>
48#include <sys/rman.h>
49#include <sys/rwlock.h>
50#include <sys/smp.h>
51#include <sys/taskqueue.h>
52#include <sys/tree.h>
53#include <sys/vmem.h>
53#include <machine/bus.h>
54#include <contrib/dev/acpica/include/acpi.h>
55#include <contrib/dev/acpica/include/accommon.h>
56#include <dev/acpica/acpivar.h>
57#include <vm/vm.h>
58#include <vm/vm_extern.h>
59#include <vm/vm_kern.h>
60#include <vm/vm_object.h>
61#include <vm/vm_page.h>
62#include <vm/vm_pager.h>
63#include <vm/vm_map.h>
64#include <x86/include/busdma_impl.h>
65#include <x86/iommu/intel_reg.h>
66#include <x86/iommu/busdma_dmar.h>
67#include <x86/iommu/intel_dmar.h>
54#include <machine/bus.h>
55#include <contrib/dev/acpica/include/acpi.h>
56#include <contrib/dev/acpica/include/accommon.h>
57#include <dev/acpica/acpivar.h>
58#include <vm/vm.h>
59#include <vm/vm_extern.h>
60#include <vm/vm_kern.h>
61#include <vm/vm_object.h>
62#include <vm/vm_page.h>
63#include <vm/vm_pager.h>
64#include <vm/vm_map.h>
65#include <x86/include/busdma_impl.h>
66#include <x86/iommu/intel_reg.h>
67#include <x86/iommu/busdma_dmar.h>
68#include <x86/iommu/intel_dmar.h>
69#include <dev/pci/pcireg.h>
68#include <dev/pci/pcivar.h>
69
70#ifdef DEV_APIC
71#include "pcib_if.h"
72#endif
73
74#define DMAR_FAULT_IRQ_RID 0
75#define DMAR_QI_IRQ_RID 1

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238}
239
240static void
241dmar_release_resources(device_t dev, struct dmar_unit *unit)
242{
243 int i;
244
245 dmar_fini_busdma(unit);
70#include <dev/pci/pcivar.h>
71
72#ifdef DEV_APIC
73#include "pcib_if.h"
74#endif
75
76#define DMAR_FAULT_IRQ_RID 0
77#define DMAR_QI_IRQ_RID 1

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240}
241
242static void
243dmar_release_resources(device_t dev, struct dmar_unit *unit)
244{
245 int i;
246
247 dmar_fini_busdma(unit);
248 dmar_fini_irt(unit);
246 dmar_fini_qi(unit);
247 dmar_fini_fault_log(unit);
248 for (i = 0; i < DMAR_INTR_TOTAL; i++)
249 dmar_release_intr(dev, unit, i);
250 if (unit->regs != NULL) {
251 bus_deactivate_resource(dev, SYS_RES_MEMORY, unit->reg_rid,
252 unit->regs);
253 bus_release_resource(dev, SYS_RES_MEMORY, unit->reg_rid,

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504 dmar_release_resources(dev, unit);
505 return (error);
506 }
507 error = dmar_init_qi(unit);
508 if (error != 0) {
509 dmar_release_resources(dev, unit);
510 return (error);
511 }
249 dmar_fini_qi(unit);
250 dmar_fini_fault_log(unit);
251 for (i = 0; i < DMAR_INTR_TOTAL; i++)
252 dmar_release_intr(dev, unit, i);
253 if (unit->regs != NULL) {
254 bus_deactivate_resource(dev, SYS_RES_MEMORY, unit->reg_rid,
255 unit->regs);
256 bus_release_resource(dev, SYS_RES_MEMORY, unit->reg_rid,

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507 dmar_release_resources(dev, unit);
508 return (error);
509 }
510 error = dmar_init_qi(unit);
511 if (error != 0) {
512 dmar_release_resources(dev, unit);
513 return (error);
514 }
515 error = dmar_init_irt(unit);
516 if (error != 0) {
517 dmar_release_resources(dev, unit);
518 return (error);
519 }
512 error = dmar_init_busdma(unit);
513 if (error != 0) {
514 dmar_release_resources(dev, unit);
515 return (error);
516 }
517
518#ifdef NOTYET
519 DMAR_LOCK(unit);

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758 }
759 }
760 }
761 return (NULL);
762found:
763 return (device_get_softc(dmar_dev));
764}
765
520 error = dmar_init_busdma(unit);
521 if (error != 0) {
522 dmar_release_resources(dev, unit);
523 return (error);
524 }
525
526#ifdef NOTYET
527 DMAR_LOCK(unit);

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766 }
767 }
768 }
769 return (NULL);
770found:
771 return (device_get_softc(dmar_dev));
772}
773
774static struct dmar_unit *
775dmar_find_nonpci(u_int id, u_int entry_type, uint16_t *rid)
776{
777 device_t dmar_dev;
778 struct dmar_unit *unit;
779 ACPI_DMAR_HARDWARE_UNIT *dmarh;
780 ACPI_DMAR_DEVICE_SCOPE *devscope;
781 ACPI_DMAR_PCI_PATH *path;
782 char *ptr, *ptrend;
783 int i;
784
785 for (i = 0; i < dmar_devcnt; i++) {
786 dmar_dev = dmar_devs[i];
787 if (dmar_dev == NULL)
788 continue;
789 unit = (struct dmar_unit *)device_get_softc(dmar_dev);
790 dmarh = dmar_find_by_index(i);
791 if (dmarh == NULL)
792 continue;
793 ptr = (char *)dmarh + sizeof(*dmarh);
794 ptrend = (char *)dmarh + dmarh->Header.Length;
795 for (;;) {
796 if (ptr >= ptrend)
797 break;
798 devscope = (ACPI_DMAR_DEVICE_SCOPE *)ptr;
799 ptr += devscope->Length;
800 if (devscope->EntryType != entry_type)
801 continue;
802 if (devscope->EnumerationId != id)
803 continue;
804 if (devscope->Length - sizeof(ACPI_DMAR_DEVICE_SCOPE)
805 == 2) {
806 if (rid != NULL) {
807 path = (ACPI_DMAR_PCI_PATH *)
808 (devscope + 1);
809 *rid = PCI_RID(devscope->Bus,
810 path->Device, path->Function);
811 }
812 return (unit);
813 } else {
814 /* XXXKIB */
815 printf(
816 "dmar_find_nonpci: id %d type %d path length != 2\n",
817 id, entry_type);
818 }
819 }
820 }
821 return (NULL);
822}
823
824
825struct dmar_unit *
826dmar_find_hpet(device_t dev, uint16_t *rid)
827{
828 ACPI_HANDLE handle;
829 uint32_t hpet_id;
830
831 handle = acpi_get_handle(dev);
832 if (ACPI_FAILURE(acpi_GetInteger(handle, "_UID", &hpet_id)))
833 return (NULL);
834 return (dmar_find_nonpci(hpet_id, ACPI_DMAR_SCOPE_TYPE_HPET, rid));
835}
836
837struct dmar_unit *
838dmar_find_ioapic(u_int apic_id, uint16_t *rid)
839{
840
841 return (dmar_find_nonpci(apic_id, ACPI_DMAR_SCOPE_TYPE_IOAPIC, rid));
842}
843
766struct rmrr_iter_args {
767 struct dmar_ctx *ctx;
768 device_t dev;
769 int dev_domain;
770 int dev_busno;
771 ACPI_DMAR_PCI_PATH *dev_path;
772 int dev_path_len;
773 struct dmar_map_entries_tailq *rmrr_entries;

--- 414 unchanged lines hidden --- 		844struct rmrr_iter_args {
845 struct dmar_ctx *ctx;
846 device_t dev;
847 int dev_domain;
848 int dev_busno;
849 ACPI_DMAR_PCI_PATH *dev_path;
850 int dev_path_len;
851 struct dmar_map_entries_tailq *rmrr_entries;

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