src/sys/dev/psci, branch stable/13 FreeBSD source tree dev/psci: Check all compat strings 2024-07-15T12:34:29+00:00 Andrew Turner andrew@FreeBSD.org 2024-04-23T11:27:09+00:00 1320b22f49b2385dc12505a93c3e2e34071d4eae When searching for the PSCI FDT node we only check a few compat strings. Use the existing compat_data array to check all strings the driver may attach to. Sponsored by: Arm Ltd Differential Revision: https://reviews.freebsd.org/D44913 (cherry picked from commit f91e9401c2098ba56f43093ef9747d0b1f60f8eb) 
When searching for the PSCI FDT node we only check a few compat strings.
Use the existing compat_data array to check all strings the driver may
attach to.

Sponsored by:	Arm Ltd
Differential Revision:	https://reviews.freebsd.org/D44913

(cherry picked from commit f91e9401c2098ba56f43093ef9747d0b1f60f8eb)
psci: split off psci_reboot from psci_shutdown 2024-03-16T15:14:47+00:00 Andriy Gapon avg@FreeBSD.org 2021-07-09T15:01:57+00:00 d463f7c7a726842dca50e87b79d401f5d09dd196 Priority of psci_reboot set so that it is run after shutdown_panic is executed. This is to provide uniform experience with other platforms. (cherry picked from commit 0f354b2b588b60e2ef119ff2f480f7905c5db587) 
Priority of psci_reboot set so that it is run after shutdown_panic is
executed.  This is to provide uniform experience with other platforms.

(cherry picked from commit 0f354b2b588b60e2ef119ff2f480f7905c5db587)
Add PSCI affinity info return values 2023-09-25T08:41:15+00:00 Andrew Turner andrew@FreeBSD.org 2023-03-16T12:16:59+00:00 8753f9e7b2bc5e482608939fc07513e60b479846 These can be returned from the PSCI AFFINITY_INFO call. This is not marked as optional so bhyve will need to implement it & can use these macros. Sponsored by: Arm Ltd (cherry picked from commit 7d0b915919665cb43107b36ad103791515eade5b) 
These can be returned from the PSCI AFFINITY_INFO call. This is not
marked as optional so bhyve will need to implement it & can use these
macros.

Sponsored by:	Arm Ltd

(cherry picked from commit 7d0b915919665cb43107b36ad103791515eade5b)
Add a psci macro to build a version value 2023-09-25T08:41:15+00:00 Andrew Turner andrew@FreeBSD.org 2023-03-16T12:14:01+00:00 4401550f74ba50f34e9f443307d170c6b05ba62f Add PSCI_VER that takes a major and minor version and builds the value returned by the firmware. This will be used by bhyve. Sponsored by: Arm Ltd (cherry picked from commit e89be21854b3aa33efd2e06529a181343281659d) 
Add PSCI_VER that takes a major and minor version and builds the value
returned by the firmware. This will be used by bhyve.

Sponsored by:	Arm Ltd

(cherry picked from commit e89be21854b3aa33efd2e06529a181343281659d)
Allow psci.h to be used by userspace 2023-09-25T08:41:15+00:00 Andrew Turner andrew@FreeBSD.org 2023-03-16T12:08:32+00:00 a2228dc7015344b4d8d532f75c3eb175c56ac513 Wrap parts of psci.h that aren't usable by userspace in _KERNEL checks. This allows it to be used to implement PSCI and SMCCC by bhyve in userspace. Sponsored by: Arm Ltd Sponsored by: Innovate UK Sponsored by: The FreeBSD Foundation (cherry picked from commit 473ab212dc1f72c1765f112568237d229d4e0441) 
Wrap parts of psci.h that aren't usable by userspace in _KERNEL checks.
This allows it to be used to implement PSCI and SMCCC by bhyve in
userspace.

Sponsored by:	Arm Ltd
Sponsored by:	Innovate UK
Sponsored by:	The FreeBSD Foundation

(cherry picked from commit 473ab212dc1f72c1765f112568237d229d4e0441)
sys: Remove $FreeBSD$: one-line .c pattern 2023-08-23T17:43:25+00:00 Warner Losh imp@FreeBSD.org 2023-08-22T01:31:27+00:00 3bc80996974a61a4223eae4c1ccd47b6ee32a48a Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/ Similar commit in current: (cherry picked from commit 685dc743dc3b) 
Remove /^[\s*]*__FBSDID\("\$FreeBSD\$"\);?\s*\n/

Similar commit in current:
(cherry picked from commit 685dc743dc3b)
sys: Remove $FreeBSD$: two-line .h pattern 2023-08-23T17:43:20+00:00 Warner Losh imp@FreeBSD.org 2023-08-22T01:31:02+00:00 f8167e0404dab9ffeaca95853dd237ab7c587f82 Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/ Similar commit in current: (cherry picked from commit 95ee2897e98f) 
Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

Similar commit in current:
(cherry picked from commit 95ee2897e98f)
Make SMCCC usable by device drivers 2023-05-15T10:55:36+00:00 Andrew Turner andrew@FreeBSD.org 2022-06-04T11:13:51+00:00 d42fa41bc2edfe0a6ffb49f79fcb2790a743ae4a To allow device drivers to call into SMCCC we need to initialise it earlier. As it depends on PSCI, and that is detected via ACPI or FDT move the call to smccc_init to the PSCI driver. Add a function for drivers to read the smccc version, or 0 if smccc is not present. (cherry picked from commit 0600af1ff16041f15633b2263a8ad9525eecd2f1) (cherry picked from commit 7ca55fcc541b375c83eaf75f0658b79f250c82fd) 
To allow device drivers to call into SMCCC we need to initialise it
earlier. As it depends on PSCI, and that is detected via ACPI or FDT
move the call to smccc_init to the PSCI driver.

Add a function for drivers to read the smccc version, or 0 if smccc
is not present.

(cherry picked from commit 0600af1ff16041f15633b2263a8ad9525eecd2f1)
(cherry picked from commit 7ca55fcc541b375c83eaf75f0658b79f250c82fd)
psci: set psci_present as early as possible 2022-11-02T04:11:09+00:00 Kyle Evans kevans@FreeBSD.org 2022-10-27T03:46:45+00:00 4a7fe8305e7729d8dd77de8517bf31f8f2fcb9a5 psci_attach is way too late to provide the intended semantics for psci_present. psci calls can be made immediately after psci_init(), called way earlier at SI_SUB_CPU + SI_ORDER_FIRST, and we need it to be valid as early as we can possibly call a psci function. This fixes booting RPi3+4 with the in-review spintable patch; rpi3-psci-monitor patches the FDT to add a PSCI node, but it doesn't patch each cpus' enable-method. Because of this, we would stall the boot while enabling CPU 1 as we saw a valid looking enable-method and "no" functional PSCI and attempted to use the spintable rather than simply not starting secondary APs. Fixes: 2218070b2c3c32 ("psci: finish psci_present implementation") Reported by: karels (cherry picked from commit 866beaa0aa95deeba467db3dcb605ba3a5048a5b) 
psci_attach is way too late to provide the intended semantics for
psci_present.  psci calls can be made immediately after psci_init(),
called way earlier at SI_SUB_CPU + SI_ORDER_FIRST, and we need it to
be valid as early as we can possibly call a psci function.

This fixes booting RPi3+4 with the in-review spintable patch;
rpi3-psci-monitor patches the FDT to add a PSCI node, but it doesn't
patch each cpus' enable-method.  Because of this, we would stall the
boot while enabling CPU 1 as we saw a valid looking enable-method and
"no" functional PSCI and attempted to use the spintable rather than
simply not starting secondary APs.

Fixes:	2218070b2c3c32 ("psci: finish psci_present implementation")
Reported by:	karels

(cherry picked from commit 866beaa0aa95deeba467db3dcb605ba3a5048a5b)
Merge the common parts of the SMCCC handlers 2022-09-21T09:45:52+00:00 Andrew Turner andrew@FreeBSD.org 2022-08-22T17:09:28+00:00 4a5202fdcf139d03bb2e9b4fb0c0c79e9597f12b To simplify adding new handlers merge the common parts of the functions used to call into the arm SMCCC firmware. Sponsored by: The FreeBSD Foundation Differential Revision: https://reviews.freebsd.org/D36297 (cherry picked from commit 48a7e53db78293ba2723cecfb3a3d5d23ea8e44d) 
To simplify adding new handlers merge the common parts of the functions
used to call into the arm SMCCC firmware.

Sponsored by:	The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D36297

(cherry picked from commit 48a7e53db78293ba2723cecfb3a3d5d23ea8e44d)