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Matt Redfearn 5b0093f3a4 MIPS: SMP-CPS: Don't BUG if a CPU fails to start 
If there is no online CPU within a core which could receive the IPI to
start another VP in that core, a BUG() is triggered. Instead print a
warning and gracefully handle the failure such that the system remains
usable, albeit without the requested secondary CPU.

Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Masahiro Yamada <yamada.masahiro@socionext.com>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: Qais Yousef <qsyousef@gmail.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/14504/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2017-01-03 16:34:38 +01:00
..
.gitignore
…
8250-platform.c
mips: remove needless include of module.h from core kernel files.
2011-10-31 19:30:57 -04:00
asm-offsets.c
MIPS: Introduce irq_stack
2017-01-03 16:34:34 +01:00
binfmt_elfn32.c
MIPS: kernel: Audit and remove any unnecessary uses of module.h
2016-10-05 01:31:20 +02:00
binfmt_elfo32.c
MIPS: kernel: Audit and remove any unnecessary uses of module.h
2016-10-05 01:31:20 +02:00
bmips_5xxx_init.S
MIPS: BMIPS: Make whitespacely correct.
2016-05-09 12:00:01 +02:00
bmips_vec.S
MIPS: BMIPS: Add Whirlwind (BMIPS5200) initialization code
2016-05-09 12:00:01 +02:00
branch.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
cevt-bcm1480.c
MIPS: cevt-bcm1480: Migrate to new 'set-state' interface
2015-09-03 12:07:51 +02:00
cevt-ds1287.c
MIPS: cevt-ds1287: Migrate to new 'set-state' interface
2015-09-03 12:07:51 +02:00
cevt-gt641xx.c
MIPS: cevt-gt641xx: Migrate to new 'set-state' interface
2015-09-03 12:07:51 +02:00
cevt-r4k.c
MIPS: Fix r4k clockevents registration
2016-07-24 11:59:48 +02:00
cevt-sb1250.c
MIPS: cevt-sb1250: Migrate to new 'set-state' interface
2015-09-03 12:07:52 +02:00
cevt-txx9.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
cps-vec-ns16550.S
MIPS: CPS: Early debug using an ns16550-compatible UART
2015-11-11 08:34:25 +01:00
cps-vec.S
MIPS: CPS: Copy EVA configuration when starting secondary VPs.
2016-05-28 12:35:05 +02:00
cpu-bugs64.c
tree-wide: replace config_enabled() with IS_ENABLED()
2016-08-04 08:50:07 -04:00
cpu-probe.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
crash_dump.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
crash.c
mips/panic: replace smp_send_stop() with kdump friendly version in panic path
2016-10-11 15:06:32 -07:00
csrc-bcm1480.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
csrc-ioasic.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
csrc-r4k.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
csrc-sb1250.c
clocksource: Use a plain u64 instead of cycle_t
2016-12-25 11:04:12 +01:00
early_printk_8250.c
MIPS: Add 8250/16550 serial early printk driver
2013-10-29 21:24:36 +01:00
early_printk.c
early_printk: consolidate random copies of identical code
2013-04-29 18:28:13 -07:00
elf.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2016-08-06 09:13:11 -04:00
entry.S
MIPS: kernel: entry.S: Set correct ISA level for mips_ihb
2015-04-10 15:41:46 +02:00
ftrace.c
ftrace: Add return address pointer to ftrace_ret_stack
2016-08-24 12:15:14 +02:00
genex.S
MIPS: Switch to the irq_stack in interrupts
2017-01-03 16:34:34 +01:00
gpio_txx9.c
MIPS: txx9: switch to gpiochip_add_data()
2016-02-19 09:51:44 +01:00
head.S
MIPS: store the appended dtb address in a variable
2016-08-02 14:00:16 +02:00
i8253.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
idle.c
MIPS: Loongson: Add Loongson-3A R2 basic support
2016-05-13 14:02:14 +02:00
irq_txx9.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq-gt641xx.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq-msc01.c
MIPS: MSC: Prevent out-of-bounds writes to MIPS SC ioremap'd region
2014-06-26 10:48:23 +01:00
irq-rm7000.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq.c
MIPS: Introduce irq_stack
2017-01-03 16:34:34 +01:00
jump_label.c
jump_label: Rename JUMP_LABEL_{EN,DIS}ABLE to JUMP_LABEL_{JMP,NOP}
2015-08-03 11:34:12 +02:00
kgdb.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
kprobes.c
MIPS: tracing: disable uprobe/kprobe on compact branch instructions
2016-10-06 17:37:40 +02:00
linux32.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
machine_kexec.c
mips/panic: replace smp_send_stop() with kdump friendly version in panic path
2016-10-11 15:06:32 -07:00
Makefile
MIPS: Factor o32 specific code into signal_o32.c
2016-08-02 11:02:35 +02:00
mcount.S
MIPS: mcount: Adjust stack pointer for static trace in MIPS32
2014-09-26 11:41:17 +02:00
mips_ksyms.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
mips_machine.c
MIPS: move mips_{set,get}_machine_name() to a more generic place
2013-05-08 01:19:07 +02:00
mips-cm.c
tree-wide: replace config_enabled() with IS_ENABLED()
2016-08-04 08:50:07 -04:00
mips-cpc.c
MIPS: CPC: Provide default mips_cpc_default_phys_base to ignore CPC
2016-11-04 00:17:46 +01:00
mips-mt-fpaff.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
mips-mt.c
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
mips-r2-to-r6-emul.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
module-rela.c
MIPS: module: fix incorrect IS_ERR_VALUE macro usages
2016-05-13 14:02:11 +02:00
module.c
MIPS: Migrate exception table users off module.h and onto extable.h
2016-10-04 16:13:57 +02:00
octeon_switch.S
MIPS: Fix octeon FP context switch handling
2015-10-02 19:16:06 +02:00
perf_event_mipsxx.c
MIPS: perf: Fix I6400 event numbers
2016-05-17 11:05:07 +02:00
perf_event.c
perf core: Add a 'nr' field to perf_event_callchain_context
2016-05-16 23:11:51 -03:00
pm-cps.c
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
pm.c
MIPS: Fix watchpoint restoration
2016-05-09 12:00:02 +02:00
probes-common.h
MIPS: tracing: disable uprobe/kprobe on compact branch instructions
2016-10-06 17:37:40 +02:00
proc.c
MIPS: Move identification of VP(E) into proc.c from smp-mt.c
2016-10-04 16:13:57 +02:00
process.c
MIPS: SMP: Use a completion event to signal CPU up
2017-01-03 16:34:38 +01:00
prom.c
MIPS: Fix build with CONFIG_OF=y for non OF-enabled targets
2015-08-03 09:25:00 +02:00
ptrace32.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
ptrace.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
r4k_fpu.S
MIPS: Use copy_s.fmt rather than copy_u.fmt
2016-05-09 12:00:04 +02:00
r4k_switch.S
MIPS: Remove redundant asm/pgtable-bits.h inclusions
2016-05-13 15:30:25 +02:00
r2300_fpu.S
MIPS: Correct MIPS I FP sigcontext layout
2016-11-04 01:39:23 +01:00
r2300_switch.S
MIPS: Fix R2300 FP context switch handling
2015-10-02 19:16:46 +02:00
r6000_fpu.S
MIPS: Fix ISA I/II FP signal context offsets
2016-11-04 01:38:52 +01:00
relocate_kernel.S
MIPS: Replace add and sub instructions in relocate_kernel.S with addiu
2015-08-03 15:26:30 +02:00
relocate.c
MIPS: Relocatable: Provide plat_post_relocation hook
2017-01-03 16:34:36 +01:00
reset.c
MIPS: Provide fallback reboot/poweroff/halt implementations
2015-04-01 17:21:58 +02:00
rtlx-cmp.c
MIPS: APRP: Fix an issue when device_create() fails.
2014-08-01 17:30:35 +02:00
rtlx-mt.c
MIPS: APRP: Fix an issue when device_create() fails.
2014-08-01 17:30:35 +02:00
rtlx.c
MIPS: rtlx: Remove KERN_DEBUG from pr_debug() arguments in rtlx.c
2014-11-24 07:44:04 +01:00
scall32-o32.S
MIPS: Wire up new pkey_{mprotect,alloc,free} syscalls
2016-10-14 11:05:13 -07:00
scall64-64.S
MIPS: Wire up new pkey_{mprotect,alloc,free} syscalls
2016-10-14 11:05:13 -07:00
scall64-n32.S
MIPS: Wire up new pkey_{mprotect,alloc,free} syscalls
2016-10-14 11:05:13 -07:00
scall64-o32.S
MIPS: Wire up new pkey_{mprotect,alloc,free} syscalls
2016-10-14 11:05:13 -07:00
segment.c
MIPS: Print segment physical address when EU=1
2016-07-28 11:44:30 +02:00
setup.c
MIPS: Fix max_low_pfn with disabled highmem
2016-11-04 01:45:22 +01:00
signal32.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
signal_n32.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
signal_o32.c
MIPS: Factor o32 specific code into signal_o32.c
2016-08-02 11:02:35 +02:00
signal-common.h
MIPS: Save MSA extended context around signals
2015-09-03 12:07:59 +02:00
signal.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2016-08-06 09:13:11 -04:00
smp-bmips.c
MIPS: SMP: Remove cpu_callin_map
2017-01-03 16:34:38 +01:00
smp-cmp.c
MIPS: Make smp CMP, CPS and MT use the new generic IPI functions
2016-02-25 10:56:58 +01:00
smp-cps.c
MIPS: SMP-CPS: Don't BUG if a CPU fails to start
2017-01-03 16:34:38 +01:00
smp-mt.c
MIPS: Move identification of VP(E) into proc.c from smp-mt.c
2016-10-04 16:13:57 +02:00
smp-up.c
MIPS: SMP: Remove plat_smp_ops cpus_done method.
2014-05-27 11:06:42 +02:00
smp.c
MIPS: SMP: Remove cpu_callin_map
2017-01-03 16:34:38 +01:00
spinlock_test.c
MIPS: Declare mips_debugfs_dir in a header
2015-10-26 09:49:42 +01:00
spram.c
MIPS: Add P6600 cases to CPU switch statements
2016-05-13 14:01:52 +02:00
stacktrace.c
MIPS: Add LATENCYTOP support
2015-11-11 08:36:46 +01:00
sync-r4k.c
MIPS: sync-r4k: reduce skew while synchronization
2016-01-24 01:31:51 +01:00
syscall.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
sysrq.c
MIPS: Refactor dumping of TLB registers for r3k/r4k
2015-09-03 12:07:45 +02:00
time.c
MIPS: Return -ENODEV from weak implementation of rtc_mips_set_time
2016-12-11 11:19:04 +01:00
topology.c
…
traps.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
unaligned.c
Replace <asm/uaccess.h> with <linux/uaccess.h> globally
2016-12-24 11:46:01 -08:00
uprobes.c
MIPS: tracing: disable uprobe/kprobe on compact branch instructions
2016-10-06 17:37:40 +02:00
vdso.c
MIPS: vDSO: Fix Malta EVA mapping to vDSO page structs
2016-09-21 15:56:10 +02:00
vmlinux.lds.S
MIPS: Ensure bss section ends on a long-aligned address
2017-01-03 16:34:36 +01:00
vpe-cmp.c
MIPS: APRP: Add VPE loader support for CMP platforms.
2014-01-22 20:19:02 +01:00
vpe-mt.c
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
vpe.c
module: use a structure to encapsulate layout.
2015-12-04 22:46:25 +01:00
watch.c
MIPS: Add and use watch register field definitions
2016-05-13 14:02:13 +02:00