Paul Burton e060f6ed28 MIPS: Initialise MAARs on secondary CPUs ...

MAARs should be initialised on each CPU (or rather, core) in the system
in order to achieve consistent behaviour & performance. Previously they
have only been initialised on the boot CPU which leads to performance
problems if tasks are later scheduled on a secondary CPU, particularly
if those tasks make use of unaligned vector accesses where some CPUs
don't handle any cases in hardware for non-speculative memory regions.
Fix this by recording the MAAR configuration from the boot CPU and
applying it to secondary CPUs as part of their bringup.

Reported-by: Doug Gilmore <doug.gilmore@imgtec.com>
Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Steven J. Hill <Steven.Hill@imgtec.com>
Cc: Andrew Bresticker <abrestic@chromium.org>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: David Hildenbrand <dahi@linux.vnet.ibm.com>
Cc: linux-kernel@vger.kernel.org
Cc: Aaro Koskinen <aaro.koskinen@iki.fi>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Markos Chandras <markos.chandras@imgtec.com>
Cc: Hemmo Nieminen <hemmo.nieminen@iki.fi>
Cc: Alex Smith <alex.smith@imgtec.com>
Cc: Peter Zijlstra (Intel) <peterz@infradead.org>
Patchwork: https://patchwork.linux-mips.org/patch/11239/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2015-09-27 14:15:26 +02:00

..

.gitignore

[MIPS] Ignore vmlinux.lds generated files

2008-08-26 09:10:27 +01:00

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: Set trap_no field in thread_struct on exception.

2015-09-03 12:08:04 +02:00

binfmt_elfn32.c

MIPS: Compat: Fix cputime_to_timeval() arguments in compat binfmt_elf.

2013-06-06 16:11:26 +02:00

binfmt_elfo32.c

MIPS: Remove old core dump functions

2014-08-02 00:06:37 +02:00

bmips_vec.S

MIPS: BMIPS: Fix ".previous without corresponding .section" warnings

2014-11-24 07:44:05 +01:00

branch.c

MIPS: Fix branch emulation for BLTC and BGEC instructions

2015-07-09 11:10:40 +02:00

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: cevt-r4k: Migrate to new 'set-state' interface

2015-09-03 12:07:52 +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

MIPS: cevt-txx9: Migrate to new 'set-state' interface

2015-09-03 12:07:53 +02:00

cps-vec.S

MIPS: CPS: use 32b accesses to GCRs

2015-08-28 11:48:22 +02:00

cpu-bugs64.c

MIPS: kernel: cpu-bugs64: Do not check R6 cores for existing 64-bit bugs

2015-02-17 15:37:24 +00:00

cpu-probe.c

MIPS: Fix FTLB detection for R6

2015-09-22 21:11:39 +02:00

crash_dump.c

mips: Convert pr_warning to pr_warn

2014-11-24 07:44:51 +01:00

crash.c

mips: fix up obsolete cpu function usage.

2015-03-05 15:25:06 +10:30

csrc-bcm1480.c

MIPS: csrc-bcm1480: Implement read_sched_clock

2015-04-01 17:21:27 +02:00

csrc-ioasic.c

MIPS: csrc-ioasic: Implement read_sched_clock

2015-04-01 17:21:28 +02:00

csrc-r4k.c

MIPS: csrc-r4k: Implement read_sched_clock

2015-04-01 17:21:27 +02:00

csrc-sb1250.c

MIPS: csrc-sb1250: Implement read_sched_clock

2015-04-01 17:21:33 +02:00

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

MIPS: fix FP mode selection in lieu of .MIPS.abiflags data

2015-05-12 18:54:05 +02:00

entry.S

MIPS: kernel: entry.S: Set correct ISA level for mips_ihb

2015-04-10 15:41:46 +02:00

ftrace.c

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2014-08-07 08:47:00 -07:00

genex.S

MIPS: Fix LLVM build issue.

2015-08-18 11:40:20 +02:00

gpio_txx9.c

[MIPS] txx9: Make gpio_txx9 entirely spinlock-safe

2008-07-15 18:44:34 +01:00

head.S

MIPS: Add support for vmlinux.bin appended dtb

2015-06-21 21:54:14 +02:00

i8253.c

MIPS: irq: Remove IRQF_DISABLED

2011-12-07 22:03:45 +00:00

idle.c

MIPS: Add cases for CPU_I6400

2015-08-26 15:23:03 +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: IRQ/IP27: Move IRQ allocation API to platform code.

2015-06-21 21:54:31 +02:00

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

MIPS: Get rid of 'kgdb_early_setup' cruft.

2015-06-21 21:54:10 +02:00

kprobes.c

mips: Replace __get_cpu_var uses

2014-08-26 13:45:51 -04:00

linux32.c

unify compat fanotify_mark(2), switch to COMPAT_SYSCALL_DEFINE

2013-05-09 13:46:38 -04:00

machine_kexec.c

MIPS: kdump: Set correct value to kexec_indirection_page variable

2014-08-25 16:33:44 +02:00

Makefile

Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus

2015-09-03 16:55:55 -07:00

mcount.S

MIPS: mcount: Adjust stack pointer for static trace in MIPS32

2014-09-26 11:41:17 +02:00

mips_ksyms.c

Merge branch 'mipsr6-for-3.20' of git://git.linux-mips.org/pub/scm/mchandras/linux into mips-for-linux-next

2015-02-19 16:00:34 +01:00

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

MIPS: CM: Add support for reporting CM cache errors

2015-08-26 15:23:15 +02:00

mips-cpc.c

MIPS: CPC: Remove "weak" from mips_cpc_phys_base() and make it static

2015-08-26 15:23:37 +02:00

mips-mt-fpaff.c

MIPS: Fix sched_getaffinity with MT FPAFF enabled

2015-08-03 09:25:02 +02:00

mips-mt.c

MIPS: MT: Remove SMTC support

2014-05-24 00:07:01 +02:00

mips-r2-to-r6-emul.c

MIPS: Set `si_code' for SIGFPE signals sent from emulation too

2015-04-08 01:10:19 +02:00

module-rela.c

MIPS: Whitespace cleanup.

2013-02-01 10:00:22 +01:00

module.c

mm: vmalloc: pass additional vm_flags to __vmalloc_node_range()

2015-02-13 21:21:42 -08:00

octeon_switch.S

MIPS: OCTEON: Delete unused COP2 saving code

2015-02-20 15:30:23 +01:00

perf_event_mipsxx.c

MIPS: Add cases for CPU_I6400

2015-08-26 15:23:03 +02:00

perf_event.c

MIPS: perf: Reorganize contents of perf support files.

2011-10-24 23:34:26 +01:00

pm-cps.c

MIPS: Add cases for CPU_I6400

2015-08-26 15:23:03 +02:00

pm.c

MIPS: PM: Implement PM helper macros

2014-05-02 16:39:10 +01:00

proc.c

MIPS: Add support for XPA.

2015-03-19 17:39:49 +01:00

process.c

Merge tag 'cpumask-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux

2015-04-20 10:19:03 -07:00

prom.c

MIPS: Fix build with CONFIG_OF=y for non OF-enabled targets

2015-08-03 09:25:00 +02:00

ptrace32.c

MIPS: Remove asm/user.h

2014-08-02 00:06:37 +02:00

ptrace.c

MIPS: Add uprobes support.

2015-09-03 12:08:05 +02:00

r4k_fpu.S

MIPS: Save MSA extended context around signals

2015-09-03 12:07:59 +02:00

r4k_switch.S

MIPS: Tidy up FPU context switching

2015-09-03 12:08:05 +02:00

r2300_fpu.S

MIPS: Fix build with binutils 2.24.51+

2014-11-07 15:07:36 +01:00

r2300_switch.S

MIPS: Respect the ISA level in FCSR handling

2015-04-08 01:10:37 +02:00

r6000_fpu.S

MIPS: Fix build with binutils 2.24.51+

2014-11-07 15:07:36 +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

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: O32: Do not handle require 32 bytes from the stack to be readable.

2015-07-08 05:03:30 +02:00

scall64-64.S

MIPS: Fix seccomp syscall argument for MIPS64

2015-08-16 15:00:59 +02:00

scall64-n32.S

MIPS: Fix seccomp syscall argument for MIPS64

2015-08-16 15:00:59 +02:00

scall64-o32.S

MIPS: O32: Use compat_sys_getsockopt.

2015-07-10 11:02:22 +02:00

segment.c

MIPS: Add debugfs file to print the segmentation control registers

2014-01-22 20:19:00 +01:00

setup.c

MIPS: bootmem: Fix mapstart calculation for contiguous maps

2015-09-22 17:25:33 +02:00

signal32.c

MIPS: Remove unused {get,put}_sigset functions

2015-09-03 12:07:56 +02:00

signal_n32.c

MIPS: Add offsets to sigcontext FP fields to struct mips_abi

2015-09-03 12:07:55 +02:00

signal-common.h

MIPS: Save MSA extended context around signals

2015-09-03 12:07:59 +02:00

signal.c

MIPS: Add uprobes support.

2015-09-03 12:08:05 +02:00

smp-bmips.c

MIPS: SMP: Don't increment irq_count multiple times for call function IPIs

2015-08-03 09:25:12 +02:00

smp-cmp.c

mips: fix up obsolete cpu function usage.

2015-03-05 15:25:06 +10:30

smp-cps.c

MIPS: kernel: smp-cps: Fix 64-bit compatibility errors due to pointer casting

2015-07-09 11:12:57 +02:00

smp-gic.c

MIPS: Move gic.h to include/linux/irqchip/mips-gic.h

2014-11-24 07:44:59 +01:00

smp-mt.c

mips: fix up obsolete cpu function usage.

2015-03-05 15:25:06 +10:30

smp-up.c

MIPS: SMP: Remove plat_smp_ops cpus_done method.

2014-05-27 11:06:42 +02:00

smp.c

MIPS: Initialise MAARs on secondary CPUs

2015-09-27 14:15:26 +02:00

spinlock_test.c

mips: migrate core kernel file from module.h --> export.h

2011-10-31 19:30:56 -04:00

spram.c

MIPS: Add cases for CPU_I6400

2015-08-26 15:23:03 +02:00

stacktrace.c

mips: migrate core kernel file from module.h --> export.h

2011-10-31 19:30:56 -04:00

sync-r4k.c

MIPS: MT: Remove SMTC support

2014-05-24 00:07:01 +02:00

syscall.c

MIPS: kernel: syscall: Set the appropriate ISA level for MIPS R6

2015-02-17 15:37:29 +00:00

sysrq.c

MIPS: Refactor dumping of TLB registers for r3k/r4k

2015-09-03 12:07:45 +02:00

time.c

MIPS: MT: Remove SMTC support

2014-05-24 00:07:01 +02:00

topology.c

MIPS: Add arch generic CPU hotplug

2009-06-24 18:34:40 +01:00

traps.c

MIPS: Add uprobes support.

2015-09-03 12:08:05 +02:00

unaligned.c

MIPS: unaligned: Move from deprecated __initcall to arch_initcall.

2015-09-03 12:07:49 +02:00

uprobes.c

MIPS: Add uprobes support.

2015-09-03 12:08:05 +02:00

vdso.c

MIPS: Enable VDSO randomization

2014-11-24 07:45:38 +01:00

vmlinux.lds.S

MIPS: Add support for vmlinux.bin appended dtb

2015-06-21 21:54:14 +02:00

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

MIPS: MT: Remove "weak" from vpe_run() declaration

2015-08-26 15:23:40 +02:00

watch.c

MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code

2013-07-14 19:36:51 -04:00