sys/x86: further adoption of SPDX licensing ID tags.

Mainly focus on files that use BSD 2-Clause license, however the tool I
was using misidentified many licenses so this was mostly a manual - error
prone - task.

The Software Package Data Exchange (SPDX) group provides a specification
to make it easier for automated tools to detect and summarize well known
opensource licenses. We are gradually adopting the specification, noting
that the tags are considered only advisory and do not, in any way,
superceed or replace the license texts.

sys/x86/acpica/OsdEnvironment.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2000,2001 Michael Smith
  * Copyright (c) 2000 BSDi
  * All rights reserved.

sys/x86/acpica/acpi_apm.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2001 Mitsuru IWASAKI
  * All rights reserved.
  *

sys/x86/acpica/acpi_wakeup.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2001 Takanori Watanabe <[email protected]>
  * Copyright (c) 2001-2012 Mitsuru IWASAKI <[email protected]>
  * Copyright (c) 2003 Peter Wemm

sys/x86/acpica/madt.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2003 John Baldwin <[email protected]>
  * All rights reserved.
  *

sys/x86/acpica/srat.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2010 Hudson River Trading LLC
  * Written by: John H. Baldwin <[email protected]>
  * All rights reserved.

sys/x86/bios/smbios.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2003 Matthew N. Dodd <[email protected]>
  * All rights reserved.
  *

sys/x86/bios/vpd.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2003 Matthew N. Dodd <[email protected]>
  * All rights reserved.
  *

sys/x86/cpufreq/est.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2004 Colin Percival
  * Copyright (c) 2005 Nate Lawson
  * All rights reserved.

sys/x86/cpufreq/hwpstate.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2005 Nate Lawson
  * Copyright (c) 2004 Colin Percival
  * Copyright (c) 2004-2005 Bruno Durcot

sys/x86/cpufreq/p4tcc.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2005 Nate Lawson
  * All rights reserved.
  *

sys/x86/cpufreq/powernow.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2004-2005 Bruno Ducrot
  * Copyright (c) 2004 FUKUDA Nobuhiko <[email protected]>
  *

sys/x86/cpufreq/smist.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2005 Bruno Ducrot
  *
  * Redistribution and use in source and binary forms, with or without

sys/x86/include/_inttypes.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-NetBSD
+ *
  * Copyright (c) 2001 The NetBSD Foundation, Inc.
  * All rights reserved.
  *

sys/x86/include/_stdint.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-4-Clause
+ *
  * Copyright (c) 2001, 2002 Mike Barcroft <[email protected]>
  * Copyright (c) 2001 The NetBSD Foundation, Inc.
  * All rights reserved.

sys/x86/include/acpica_machdep.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2002 Mitsuru IWASAKI
  * All rights reserved.
  *

sys/x86/include/apicreg.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 1996, by Peter Wemm and Steve Passe
  * All rights reserved.
  *

sys/x86/include/apicvar.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2003 John Baldwin <[email protected]>
  * All rights reserved.
  *

sys/x86/include/bus.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause AND BSD-2-Clause-NetBSDE
+ *
  * Copyright (c) KATO Takenori, 1999.
  *
  * All rights reserved.  Unpublished rights reserved under the copyright

sys/x86/include/busdma_impl.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/include/elf.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 1996-1997 John D. Polstra.
  * All rights reserved.
  *

sys/x86/include/fdt.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 Juniper Networks, Inc.
  * All rights reserved.
  *

sys/x86/include/init.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 Roger Pau Monné <[email protected]>
  * All rights reserved.
  *

sys/x86/include/legacyvar.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2000 Peter Wemm <[email protected]>
  * All rights reserved.
  *

sys/x86/include/mca.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2009 Hudson River Trading LLC
  * Written by: John H. Baldwin <[email protected]>
  * All rights reserved.

sys/x86/include/mptable.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 1996, by Steve Passe
  * All rights reserved.
  *

sys/x86/include/ofw_machdep.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 Juniper Networks, Inc.
  * All rights reserved.
  *

sys/x86/include/pci_cfgreg.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 1997, Stefan Esser <[email protected]>
  * All rights reserved.
  *

sys/x86/include/sigframe.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 1999 Marcel Moolenaar
  * All rights reserved.
  *

sys/x86/include/ucontext.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2003 Peter Wemm
  * Copyright (c) 1999 Marcel Moolenaar
  * All rights reserved.

sys/x86/include/vdso.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright 2012 Konstantin Belousov <[email protected]>.
  * Copyright 2016 The FreeBSD Foundation.
  * All rights reserved.

sys/x86/iommu/busdma_dmar.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/busdma_dmar.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_ctx.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_dmar.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013-2015 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_drv.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013-2015 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_fault.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_gas.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_idpgtbl.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_qi.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_quirks.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013, 2015 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_reg.h

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013-2015 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/iommu/intel_utils.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.
  *

sys/x86/isa/atpic.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2003 John Baldwin <[email protected]>
  * All rights reserved.
  *

sys/x86/isa/atrtc.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2008 Poul-Henning Kamp
  * Copyright (c) 2010 Alexander Motin <[email protected]>
  * All rights reserved.

sys/x86/isa/elcr.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2004 John Baldwin <[email protected]>
  * All rights reserved.
  *

sys/x86/isa/isa.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD AND MIT
+ *
  * Copyright (c) 1998 Doug Rabson
  * All rights reserved.
  *

sys/x86/isa/orm.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2000 Nikolai Saoukh
  * All rights reserved.
  *

sys/x86/pci/pci_bus.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 1997, Stefan Esser <[email protected]>
  * All rights reserved.
  *

sys/x86/pci/qpi.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2010 Hudson River Trading LLC
  * Written by: John H. Baldwin <[email protected]>
  * All rights reserved.

sys/x86/x86/busdma_bounce.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 1997, 1998 Justin T. Gibbs.
  * All rights reserved.
  *

sys/x86/x86/busdma_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 1997, 1998 Justin T. Gibbs.
  * Copyright (c) 2013 The FreeBSD Foundation
  * All rights reserved.

sys/x86/x86/dump_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2002 Marcel Moolenaar
  * All rights reserved.
  *

sys/x86/x86/fdt_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2013 Juniper Networks, Inc.
  * All rights reserved.
  *

sys/x86/x86/intr_machdep.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2003 John Baldwin <[email protected]>
  * All rights reserved.
  *

sys/x86/x86/io_apic.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2003 John Baldwin <[email protected]>
  * All rights reserved.
  *

sys/x86/x86/local_apic.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-3-Clause
+ *
  * Copyright (c) 2003 John Baldwin <[email protected]>
  * Copyright (c) 1996, by Steve Passe
  * All rights reserved.

sys/x86/x86/mca.c

@@ -1,4 +1,6 @@
 /*-
+ * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
+ *
  * Copyright (c) 2009 Hudson River Trading LLC
  * Written by: John H. Baldwin <[email protected]>
  * All rights reserved.