powerpc: Fix bus_space_unmap

Previously it failed to compile since the macro passed too many
arguments to the function. Fix by adding the bus handle to the
function and adding an implementation tha

powerpc: Fix bus_space_unmap

Previously it failed to compile since the macro passed too many
arguments to the function. Fix by adding the bus handle to the
function and adding an implementation that calls pmap_unmapdev.

Reviewed by: jhibbits
Differential Revision: https://reviews.freebsd.org/D43440

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

spdx: The BSD-2-Clause-NetBSD identifier is obsolete, drop -NetBSD

The SPDX folks have obsoleted the BSD-2-Clause-NetBSD identifier. Catch
up to that fact and revert to their recommended match of BS

spdx: The BSD-2-Clause-NetBSD identifier is obsolete, drop -NetBSD

The SPDX folks have obsoleted the BSD-2-Clause-NetBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

show more ...

Add missing assignment forgotten in r365899

Noticed by: mav
MFC after: 1 month
MFC with: r365899

Add NetBSD compatible bus_space_peek_N() and bus_space_poke_N() functions.
One problem with the bus_space_read_N() and bus_space_write_N() family of
functions is that they provide no protection again

Add NetBSD compatible bus_space_peek_N() and bus_space_poke_N() functions.
One problem with the bus_space_read_N() and bus_space_write_N() family of
functions is that they provide no protection against exceptions which can
occur when no physical hardware or device responds to the read or write
cycles. In such a situation, the system typically would panic due to a
kernel-mode bus error. The bus_space_peek_N() and bus_space_poke_N() family
of functions provide a mechanism to handle these exceptions gracefully
without the risk of crashing the system.

Typical example is access to PCI(e) configuration space in bus enumeration
function on badly implemented PCI(e) root complexes (RK3399 or Neoverse
N1 N1SDP and/or access to PCI(e) register when device is in deep sleep state.

This commit adds a real implementation for arm64 only. The remaining
architectures have bus_space_peek()/bus_space_poke() emulated by using
bus_space_read()/bus_space_write() (without exception handling).

MFC after: 1 month
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D25371

show more ...

powerpc: Fix bus_space_unmap

Previously it failed to compile since the macro passed too many
arguments to the function. Fix by adding the bus handle to the
function and adding an implementation tha

powerpc: Fix bus_space_unmap

Previously it failed to compile since the macro passed too many
arguments to the function. Fix by adding the bus handle to the
function and adding an implementation that calls pmap_unmapdev.

Reviewed by: jhibbits
Differential Revision: https://reviews.freebsd.org/D43440

show more ...

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

spdx: The BSD-2-Clause-NetBSD identifier is obsolete, drop -NetBSD

The SPDX folks have obsoleted the BSD-2-Clause-NetBSD identifier. Catch
up to that fact and revert to their recommended match of BS

spdx: The BSD-2-Clause-NetBSD identifier is obsolete, drop -NetBSD

The SPDX folks have obsoleted the BSD-2-Clause-NetBSD identifier. Catch
up to that fact and revert to their recommended match of BSD-2-Clause.

Discussed with: pfg
MFC After: 3 days
Sponsored by: Netflix

show more ...

Add missing assignment forgotten in r365899

Noticed by: mav
MFC after: 1 month
MFC with: r365899

Add NetBSD compatible bus_space_peek_N() and bus_space_poke_N() functions.
One problem with the bus_space_read_N() and bus_space_write_N() family of
functions is that they provide no protection again

Add NetBSD compatible bus_space_peek_N() and bus_space_poke_N() functions.
One problem with the bus_space_read_N() and bus_space_write_N() family of
functions is that they provide no protection against exceptions which can
occur when no physical hardware or device responds to the read or write
cycles. In such a situation, the system typically would panic due to a
kernel-mode bus error. The bus_space_peek_N() and bus_space_poke_N() family
of functions provide a mechanism to handle these exceptions gracefully
without the risk of crashing the system.

Typical example is access to PCI(e) configuration space in bus enumeration
function on badly implemented PCI(e) root complexes (RK3399 or Neoverse
N1 N1SDP and/or access to PCI(e) register when device is in deep sleep state.

This commit adds a real implementation for arm64 only. The remaining
architectures have bus_space_peek()/bus_space_poke() emulated by using
bus_space_read()/bus_space_write() (without exception handling).

MFC after: 1 month
Reviewed by: kib
Differential Revision: https://reviews.freebsd.org/D25371

show more ...

sys/powerpc: 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 - e

sys/powerpc: 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.

show more ...

MFH

Sponsored by: The FreeBSD Foundation

Increase booke bus max address to 36-bits.

Sponsored by: Alex Perez/Inertial Computing

Revert r291009 until rman changes go in.

Pointy-hat to: jhibbits

Physical addresses for e500mc/e5500 are 36-bits, e6500 is 40-bits.

Increase BUS_SPACE_MAXADDR to allow for this.

Sponsored by: Alex Perez/Inertial Computing

MFC @ r266724

An SVM update will follow this.

Merge head

IFC @264767

Merge head up to r263906.

Update NetBSD Foundation copyrights to 2-clause BSD

The NetBSD Foundation states "Third parties are encouraged to change the
license on any files which have a 4-clause license contributed to the
Net

Update NetBSD Foundation copyrights to 2-clause BSD

The NetBSD Foundation states "Third parties are encouraged to change the
license on any files which have a 4-clause license contributed to the
NetBSD Foundation to a 2-clause license."

This change removes clauses 3 and 4 from copyright / license blocks that
list The NetBSD Foundation as the only copyright holder.

Sponsored by: The FreeBSD Foundation

show more ...

sys/powerpc: 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 - e

sys/powerpc: 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.

show more ...

MFH

Sponsored by: The FreeBSD Foundation

Increase booke bus max address to 36-bits.

Sponsored by: Alex Perez/Inertial Computing

Revert r291009 until rman changes go in.

Pointy-hat to: jhibbits

Physical addresses for e500mc/e5500 are 36-bits, e6500 is 40-bits.

Increase BUS_SPACE_MAXADDR to allow for this.

Sponsored by: Alex Perez/Inertial Computing