CVS log for src/sys/arch/arm/arm32/armv7_generic_space.c

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Retire arm_[di]sb in favour of the isb() and dsb(sy) macro invocations.

KNF #includes

Remove some unnecessary ones while I'm here.

Merge changes from current as of 20200406

Sync with head.

Pull up following revision(s) (requested by skrll in ticket #742):

	sys/arch/arm/arm32/pmap.c: revision 1.388
	sys/arch/arm/arm32/armv7_generic_space.c: revision 1.11
	sys/arch/arm/arm/cpufunc.c: revision 1.176
	sys/arch/arm/conf/Makefile.arm: revision 1.54 (via patch)
	sys/arch/arm/include/arm32/pmap.h: revision 1.161

Fix the armv[67] memory attributes for uncached memory.  Previously it was
mapped as strongly-ordered which meant that unaligned accesses would fault.
armv7_generic_bs_map now maps pages with PMAP_DEV which is treated as SO
bus_dma continues to use PMAP_NOCACHE as appropriate, but this now get
mapped to the correct memory attribute bits for armv[67]

DEVMAP_ENTRY usees a new flag PTE_DEV.

The workaround for the unaligned access faults is now removed.
XXX Other armv[67] boards bus_space implementations should be checked.
XXX There is scope to reduce the difference to aarch64

Fix the armv[67] memory attributes for uncached memory.  Previously it was
mapped as strongly-ordered which meant that unaligned accesses would fault.

armv7_generic_bs_map now maps pages with PMAP_DEV which is treated as SO

bus_dma continues to use PMAP_NOCACHE as appropriate, but this now get
mapped to the correct memory attribute bits for armv[67]

DEVMAP_ENTRY usees a new flag PTE_DEV.

The workaround for the unaligned access faults is now removed.

XXX Other armv[67] boards bus_space implementations should be checked.
XXX There is scope to reduce the difference to aarch64

Sync with HEAD

Sync with HEAD, resolve a couple of conflicts

On second thought, get rid of "bs_base" from struct bus_space and use a
custom bs_map for acpipchb instead.

Add a "bs_base" field to struct bus_space. If present, use it to translate
mappings by appending the value to the pa passed to bus_space_map.

Sync with HEAD.  77 conflicts resolved - all of them $NetBSD$

Add initial support for ARMv8 (AARCH64) (by nisimura@ and ryo@)

- sys/arch/evbarm64 is gone and integrated into sys/arch/evbarm. (by skrll@)
- add support fdt. evbarm/conf/GENERIC64 fdt (bcm2837,sunxi,tegra) based generic 64bit kernel config. (by skrll@, jmcneill@)

Synch with HEAD, resolve conflicts

use designated initializer to make adaptability and flexibility for changing struct bus_space.
no functional change.

Pass PMAP_WRITE_COMBINE as appropriate in armv7_generic_bs_map, i.e.
same fix as bcm283x_bs_map just got.

Trailing whitespace

update from HEAD

file armv7_generic_space.c was added on branch tls-maxphys on 2017-12-03 11:35:51 +0000

KNF

Sync with HEAD

Sync with HEAD

Add pointer to bus_space_set_region_4 implemenation in armv7_generic_bs_tag.

Sync with HEAD (as of 26th Dec)

mark a4x read region / write region as not implemented

Sync with HEAD

file armv7_generic_space.c was added on branch nick-nhusb on 2015-04-06 15:17:52 +0000

Shared armv7 bus space implementation.