sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remov

sys: Automated cleanup of cdefs and other formatting

Apply the following automated changes to try to eliminate
no-longer-needed sys/cdefs.h includes as well as now-empty
blank lines in a row.

Remove /^#if.*\n#endif.*\n#include\s+<sys/cdefs.h>.*\n/
Remove /\n+#include\s+<sys/cdefs.h>.*\n+#if.*\n#endif.*\n+/
Remove /\n+#if.*\n#endif.*\n+/
Remove /^#if.*\n#endif.*\n/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/types.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/param.h>/
Remove /\n+#include\s+<sys/cdefs.h>\n#include\s+<sys/capsicum.h>/

Sponsored by: Netflix

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sys: Remove $FreeBSD$: one-line .c pattern

Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

proto: Remove unused devclass arguments to DRIVER_MODULE.

Merge ^/head r357408 through r357661.

Remove sparc64 kernel support

Remove all sparc64 specific files
Remove all sparc64 ifdefs
Removee indireeect sparc64 ifdefs

MFHead @r350386

Sponsored by: The FreeBSD Foundation

Lock busdma operations and serialize detach against open/close

Use sx to allow M_WAITOK allocations (suggested by markj).

admbugs: 782
Reviewed by: markj

Merge ^/head r340427 through r340868.

proto: change device permissions to 0600

C Turt reports that the driver is not thread safe and may have
exploitable races.

Note that the proto device is intended for prototyping and development,
an

proto: change device permissions to 0600

C Turt reports that the driver is not thread safe and may have
exploitable races.

Note that the proto device is intended for prototyping and development,
and is not for use on production systems. From the man page:

SECURITY CONSIDERATIONS
Because programs have direct access to the hardware, the proto
driver is inherently insecure. It is not advisable to use this
driver on a production machine.

The proto device is not included in any of FreeBSD's kernel config files
(although the module is built).

The issues in the proto device still need to be fixed, and the device is
inherently (and intentionally) insecure, but it might as well be limited
to root only.

admbugs: 782
Reported by: C Turt <ecturt@gmail.com>
MFC after: 3 days
Sponsored by: The FreeBSD Foundation

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Merge from head

Catch up with head, primarily for the 1.14.4.0 firmware.

Merge ^/head r285341 through r285792.

Check the hw.proto.attach environment variable for devices that
proto(4) should attach to instead of the normal driver.

Document the variable.

Merge ^/head r284737 through r285152.

Add create, destroy and load of memory descriptors.

Add an ISA/ACPI bus attachment to proto(4).

Catch up with HEAD (r280229-r284686).

Merge from head

Merged ^/head r283871 through r284187.

Implement mmap(2) for the busdma resource.

Add DMA memory allocation and freeing.
Slightly rework the tag handling.

DMA support part 1: DMA tag create & destroy

Create a special resource (= device special file) for management
of tags and maps, as well as for mapping memory into the address
space. DMA resources ar

DMA support part 1: DMA tag create & destroy

Create a special resource (= device special file) for management
of tags and maps, as well as for mapping memory into the address
space. DMA resources are managed using the PROTO_IOC_BUSDMA ioctl.
Part 1 implements tag creation, derivation and destruction.

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MFC @ r266724

An SVM update will follow this.

IFC @266473

Merge from head