Replace calls to bus_generic_attach with bus_attach_children

Reviewed by: imp
Differential Revision: https://reviews.freebsd.org/D47675

newbus: globally replace device_add_child(..., -1) with DEVICE_UNIT_ANY

Sponsored by: Netflix

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/

Remove redundant data from pci host generic

The bus tag and handle fields are already stored in the resource. Use
this with the bus_read/bus_write helper macros.

Sponsored by: Arm Ltd

pci: Remove unused devclass arguments to DRIVER_MODULE.

Use pmap_qenter in the N1SDP PCIe driver

In the Neoverse N1 SDP PCIe driver we need to map a page shared
between the firmware and the kernel. Previously we would use
pmap_kenter for this, however as

Use pmap_qenter in the N1SDP PCIe driver

In the Neoverse N1 SDP PCIe driver we need to map a page shared
between the firmware and the kernel. Previously we would use
pmap_kenter for this, however as this is not standardised between
architectures switch to the common pmap_qenter.

While here fix the error handling code to clean up on failure.

Reviewed by: br
Sponsored by: Innovate UK
Differential Revision: https://reviews.freebsd.org/D28890

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Merge ^/head r357662 through r357854.

Add PCI Express driver for the ARM Neoverse N1 System Development
Platform (N1SDP).

Neoverse N1 is a high-performance ARM microarchitecture designed
by the ARM Holdings for the server market.

The P

Add PCI Express driver for the ARM Neoverse N1 System Development
Platform (N1SDP).

Neoverse N1 is a high-performance ARM microarchitecture designed
by the ARM Holdings for the server market.

The PCI part on N1SDP was shipped untested and suffers from some
integration issues.

For instance accessing to not existing BDFs causes System Error
(SError) exception. To mitigate this, the firmware scans the bus,
catches SErrors and creates a table with valid BDFs. That allows
us to filter-out accesses to invalid BDFs in this driver.

Also the root complex config space (BDF == 0) has an unusual
location in memory map, so remapping accesses to it is required.

Finally, the config space is restricted to 32-bit accesses only.

This was tested on the ARM boxes kindly provided by the ARM Ltd
to the DARPA CHERI Project.

In collaboration with: andrew
Reviewed by: andrew
Sponsored by: DARPA, AFRL
Differential Revision: https://reviews.freebsd.org/D23349

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