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linux/arch/powerpc/platforms/powernv
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Vaibhav Jain 8139046a5a powerpc/powernv: Make possible for user to force a full ipl cec reboot 
Ever since fast reboot is enabled by default in opal,
opal_cec_reboot() will use fast-reset instead of full IPL to perform
system reboot. This leaves the user with no direct way to force a full
IPL reboot except changing an nvram setting that persistently disables
fast-reset for all subsequent reboots.

This patch provides a more direct way for the user to force a one-shot
full IPL reboot by passing the command line argument 'full' to the
reboot command. So the user will be able to tweak the reboot behavior
via:

  $ sudo reboot full	# Force a full ipl reboot skipping fast-reset

  or
  $ sudo reboot  	# default reboot path (usually fast-reset)

The reboot command passes the un-parsed command argument to the kernel
via the 'Reboot' syscall which is then passed on to the arch function
pnv_restart(). The patch updates pnv_restart() to handle this cmd-arg
and issues opal_cec_reboot2 with OPAL_REBOOT_FULL_IPL to force a full
IPL reset.

Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
 		2018-10-03 15:39:45 +10:00
..
Kconfig powerpc/powernv: Don't select the cpufreq governors 2018-09-17 21:16:26 +10:00
Makefile powerpc/powernv: Move TCE manupulation code to its own file 2018-07-16 22:53:07 +10:00
copy-paste.h powerpc/powernv: copy/paste - Mask SO bit in CR 2018-06-04 22:58:41 +10:00
eeh-powernv.c powerpc/eeh: Avoid misleading message "EEH: no capable adapters found" 2018-07-02 23:54:26 +10:00
idle.c powerpc/powernv/idle: Fix build error 2018-08-10 22:12:39 +10:00
memtrace.c powerpc/memtrace: Remove memory in chunks 2018-09-19 21:58:02 +10:00
npu-dma.c powerpc/powernv: Fix concurrency issue with npu->mmio_atsd_usage 2018-08-03 20:09:01 +10:00
ocxl.c ocxl: Rename pnv_ocxl_spa_remove_pe to clarify it's action 2018-06-03 20:40:32 +10:00
opal-async.c powerpc/opal: Add opal_async_wait_response_interruptible() to opal-async 2017-11-06 20:39:28 +11:00
opal-dump.c powerpc/powernv/opal-dump : Use IRQ_HANDLED instead of numbers in interrupt handler 2018-07-24 22:03:24 +10:00
opal-elog.c powerpc: Use octal numbers for file permissions 2018-01-22 05:48:33 +11:00
opal-flash.c powerpc/powernv: Always stop secondaries before reboot/shutdown 2018-04-03 22:59:57 +10:00
opal-hmi.c powerpc-opal: fix spelling mistake "Uniterrupted" -> "Uninterrupted" 2018-06-05 11:33:47 +10:00
opal-imc.c powerpc/perf: Unregister thread-imc if core-imc not supported 2018-06-03 20:43:37 +10:00
opal-irqchip.c powerpc/powernv/opal: Use standard interrupts property when available 2018-08-08 00:32:38 +10:00
opal-kmsg.c powerpc/powernv: Implement and use opal_flush_console 2018-07-24 22:09:56 +10:00
opal-lpc.c powerpc: Create asm/debugfs.h and move powerpc_debugfs_root there 2017-04-11 07:46:03 +10:00
opal-memory-errors.c powerpc: Use sizeof(*foo) rather than sizeof(struct foo) 2018-03-20 16:47:53 +11:00
opal-msglog.c locking/atomics: COCCINELLE/treewide: Convert trivial ACCESS_ONCE() patterns to READ_ONCE()/WRITE_ONCE() 2017-10-25 11:01:08 +02:00
opal-nvram.c powerpc/powernv: Fix NVRAM sleep in invalid context when crashing 2018-05-18 00:23:07 +10:00
opal-power.c powerpc/powernv: Add poweroff (EPOW, DPO) events support for PowerNV platform 2015-07-16 13:34:36 +10:00
opal-powercap.c powerpc/powernv: Add support for powercap framework 2017-08-10 22:39:53 +10:00
opal-prd.c vfs: do bulk POLL* -> EPOLL* replacement 2018-02-11 14:34:03 -08:00
opal-psr.c powerpc: Use sizeof(*foo) rather than sizeof(struct foo) 2018-03-20 16:47:53 +11:00
opal-rtc.c powerpc: use time64_t in read_persistent_clock 2018-06-03 20:43:33 +10:00
opal-sensor-groups.c powerpc/powernv: Add support to enable sensor groups 2018-07-31 19:56:45 +10:00
opal-sensor.c powernv: opal-sensor: Add support to read 64bit sensor values 2018-05-21 14:48:02 +10:00
opal-sysparam.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
opal-tracepoints.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
opal-wrappers.S crypto/nx: Initialize 842 high and normal RxFIFO control registers 2018-08-08 00:32:34 +10:00
opal-xscom.c powerpc: Use sizeof(*foo) rather than sizeof(struct foo) 2018-03-20 16:47:53 +11:00
opal.c powerpc/pseries: Flush SLB contents on SLB MCE errors. 2018-09-19 21:59:22 +10:00
pci-cxl.c Revert "powerpc/powernv: Add support for the cxl kernel api on the real phb" 2018-07-02 23:54:32 +10:00
pci-ioda-tce.c powerpc/powernv/ioda: Allocate indirect TCE levels on demand 2018-07-16 22:53:11 +10:00
pci-ioda.c powerpc fixes for 4.19 #2 2018-08-24 09:34:23 -07:00
pci.c powerpc/powernv: Move TCE manupulation code to its own file 2018-07-16 22:53:07 +10:00
pci.h Merge branch 'topic/ppc-kvm' into next 2018-07-19 14:37:57 +10:00
powernv.h powerpc/powernv: process all OPAL event interrupts with kopald 2018-06-03 20:40:30 +10:00
rng.c powerpc: Convert to using %pOF instead of full_name 2017-08-23 22:27:04 +10:00
setup.c powerpc/powernv: Make possible for user to force a full ipl cec reboot 2018-10-03 15:39:45 +10:00
smp.c powerpc/64s: Remove POWER9 DD1 support 2018-07-16 11:37:21 +10:00
subcore-asm.S powerpc/powernv: Add support for POWER8 split core on powernv 2014-05-28 13:35:37 +10:00
subcore.c powerpc/64: Use array of paca pointers and allocate pacas individually 2018-03-30 23:34:23 +11:00
subcore.h powernv/powerpc: Add winkle support for offline cpus 2014-12-15 10:46:41 +11:00
vas-debug.c powerpc/vas: Fix cleanup when VAS is not configured 2018-03-14 20:11:37 +11:00
vas-trace.h powerpc/vas: Add a couple of trace points 2018-03-14 20:13:58 +11:00
vas-window.c ppc: Convert vas ID allocation to new IDA API 2018-08-21 23:54:19 -04:00
vas.c powerpc/vas: Fix cleanup when VAS is not configured 2018-03-14 20:11:37 +11:00
vas.h powerpc: clean the inclusion of stringify.h 2018-07-30 22:48:17 +10:00