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Add psci for arm64. This is currently used when rebooting and powering off

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in qemu.

Sponsored by:	The FreeBSD Foundation
This commit is contained in:
Andrew Turner 2015-04-13 16:41:33 +00:00
parent 2d790e26e5
commit 7d9cff3d23
3 changed files with 52 additions and 0 deletions
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1
sys/arm64/conf/GENERIC
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@ -84,6 +84,7 @@ device tun # Packet tunnel.
device md # Memory "disks"
device gif # IPv6 and IPv4 tunneling
device firmware # firmware assist module
device psci # Support for ARM PSCI
# The `bpf' device enables the Berkeley Packet Filter.
# Be aware of the administrative consequences of enabling this!

2
sys/conf/files.arm64
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@ -34,6 +34,8 @@ arm64/arm64/vfp.c standard
arm64/arm64/vm_machdep.c standard
dev/fdt/fdt_arm64.c optional fdt
dev/ofw/ofw_cpu.c optional fdt
dev/psci/psci.c optional psci
dev/psci/psci_arm64.S optional psci
dev/uart/uart_cpu_fdt.c optional uart fdt
dev/uart/uart_dev_pl011.c optional uart pl011
kern/kern_clocksource.c standard

49
sys/dev/psci/psci_arm64.S Normal file
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@ -0,0 +1,49 @@
/*-
* Copyright (c) 2013, 2014 Robin Randhawa
* Copyright (c) 2015 The FreeBSD Foundation
* All rights reserved.
*
* This software was developed by Andrew Turner under
* sponsorship from the FreeBSD Foundation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
*/
#include <machine/asm.h>
__FBSDID("$FreeBSD$");
/*
* uint64_t psci_hvc_despatch(uint64_t psci_fnid, uint64_t, uint64_t, uint64_t)
*/
ENTRY(psci_hvc_despatch)
hvc #0
ret
END(psci_hvc_despatch)
/*
* uint64_t psci_smc_despatch(uint64_t psci_fnid, uint64_t, uint64_t, uint64_t)
*/
ENTRY(psci_smc_despatch)
smc #0
ret
END(psci_hvc_despatch)