Paul Burton 5570ba2ee9 MIPS: CPS: Prevent multi-core with dcache aliasing ...

Systems using the MIPS Coherence Manager (CM) cannot support multi-core
SMP with dcache aliasing. This is because CPU caches are VIPT, but
interventions in CM-based systems provide only the physical address to
remote caches. This means that interventions may behave incorrectly in
the presence of an aliasing dcache, since the physical address used
when handling an intervention may lead to operation on an aliased cache
line rather than the correct line.

Prevent us from running into this issue by refusing to boot secondary
cores in systems where dcache aliasing may occur.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/16196/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

2017-06-29 02:42:28 +02:00

..

.gitignore

…

8250-platform.c

…

asm-offsets.c

MIPS: IRQ Stack: Unwind IRQ stack onto task stack

2017-03-22 11:53:57 +01:00

binfmt_elfn32.c

fs/binfmt: Convert obsolete cputime type to nsecs

2017-02-01 09:13:51 +01:00

binfmt_elfo32.c

fs/binfmt: Convert obsolete cputime type to nsecs

2017-02-01 09:13:51 +01:00

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

MIPS: Use pr_debug' for messages from __compute_return_epc_for_insn'

2017-06-29 02:42:27 +02:00

cacheinfo.c

MIPS: Fix cacheinfo overflow

2017-02-13 18:57:34 +00:00

cevt-bcm1480.c

MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks

2017-04-14 13:11:16 -07:00

cevt-ds1287.c

MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks

2017-04-14 13:11:16 -07:00

cevt-gt641xx.c

MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks

2017-04-14 13:11:16 -07:00

cevt-r4k.c

MIPS: cevt-r4k: Fix out-of-bounds array access

2017-04-10 13:31:12 +02:00

cevt-sb1250.c

MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks

2017-04-14 13:11:16 -07:00

cevt-txx9.c

MIPS: clockevent drivers: Set ->min_delta_ticks and ->max_delta_ticks

2017-04-14 13:11:16 -07:00

cmpxchg.c

MIPS: cmpxchg: Implement 1 byte & 2 byte cmpxchg()

2017-06-29 02:42:25 +02:00

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: smp-cps: Fix retrieval of VPE mask on big endian CPUs

2017-03-21 20:39:40 +01:00

cpu-bugs64.c

MIPS: Fix printk continuations in cpu-bugs64.c

2017-01-24 18:30:34 +01:00

cpu-probe.c

MIPS: Loongson: Add Loongson-3A R3 basic support

2017-06-28 12:22:42 +02:00

crash_dump.c

Replace <asm/uaccess.h> with <linux/uaccess.h> globally

2016-12-24 11:46:01 -08:00

crash.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

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

…

elf.c

MIPS: Avoid BUG warning in arch_check_elf

2017-04-12 15:22:13 +02:00

entry.S

MIPS: Remove r2_emul_return from struct thread_info

2017-01-03 16:34:41 +01:00

ftrace.c

MIPS: ftrace: fix init functions tracing

2017-06-08 14:51:59 +02:00

genex.S

MIPS: IRQ Stack: Unwind IRQ stack onto task stack

2017-03-22 11:53:57 +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

…

idle.c

MIPS: Loongson: Add Loongson-3A R2 basic support

2016-05-13 14:02:14 +02:00

irq_txx9.c

…

irq-gt641xx.c

…

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

…

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

MIPS: KGDB: Use kernel context for sleeping threads

2017-04-12 22:29:22 +02:00

kprobes.c

MIPS: tracing: disable uprobe/kprobe on compact branch instructions

2016-10-06 17:37:40 +02:00

linux32.c

MIPS: Return directly in 32_mmap2()

2017-01-25 02:51:11 +01:00

machine_kexec.c

MIPS: kexec: add debug info about the new kexec'ed image

2017-01-03 16:34:46 +01:00

Makefile

MIPS: cmpxchg: Implement 1 byte & 2 byte xchg()

2017-06-29 02:42:25 +02:00

mcount.S

MIPS: Export _mcount alongside its definition

2017-01-03 16:34:49 +01:00

mips_machine.c

…

mips-cm.c

MIPS: CM: WARN on attempt to lock invalid VP, not BUG

2017-06-29 02:42:28 +02:00

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

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task.h>

2017-03-02 08:42:35 +01:00

mips-mt.c

MIPS: MT: Remove SMTC support

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

mips-r2-to-r6-emul.c

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

2017-05-12 09:56:30 -07:00

module.c

MIPS: module: Unify rel & rela reloc handling

2017-06-28 12:22:38 +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: add I6500 handling

2017-06-28 12:22:39 +02:00

perf_event.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

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

kthread: fix boot hang (regression) on MIPS/OpenRISC

2017-05-29 09:40:54 -07:00

prom.c

MIPS: Use early_init_fdt_reserve_self to protect DTB location

2017-01-03 16:34:45 +01:00

ptrace32.c

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

ptrace.c

MIPS: Give __secure_computing() access to syscall arguments.

2017-06-28 12:22:39 +02:00

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 dead define of ST_OFF

2017-04-12 13:52:21 +02:00

r2300_fpu.S

MIPS: Correct MIPS I FP sigcontext layout

2016-11-04 01:39:23 +01:00

r2300_switch.S

MIPS: Export _save_fp & _save_msa alongside their definitions

2017-01-03 16:34:49 +01:00

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: KASLR: Add missing header files

2017-04-12 17:02:04 +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

sched/headers: Prepare to move signal wakeup & sigpending methods from <linux/sched.h> into <linux/sched/signal.h>

2017-03-02 08:42:32 +01:00

scall32-o32.S

MIPS: Save static registers before sysmips

2017-06-28 12:22:40 +02:00

scall64-64.S

MIPS: Save static registers before sysmips

2017-06-28 12:22:40 +02:00

scall64-n32.S

MIPS: Save static registers before sysmips

2017-06-28 12:22:40 +02:00

scall64-o32.S

MIPS: Save static registers before sysmips

2017-06-28 12:22:40 +02:00

segment.c

MIPS: Print segment physical address when EU=1

2016-07-28 11:44:30 +02:00

setup.c

MIPS: cmdline: Add support for 'memmap' parameter

2017-06-29 02:42:23 +02:00

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

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/signal.h>

2017-03-02 08:42:29 +01:00

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: Add missing include files

2017-03-08 10:38:06 +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: CPS: Prevent multi-core with dcache aliasing

2017-06-29 02:42:28 +02:00

smp-mt.c

MIPS: smp-mt: Use CPU interrupt controller IPI IRQ domain support

2017-04-12 23:13:13 +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: Skip IPI setup if we only have 1 CPU

2017-06-29 02:42:27 +02:00

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

sched/headers: Prepare for new header dependencies before moving code to <linux/sched/task_stack.h>

2017-03-02 08:42:36 +01:00

sync-r4k.c

MIPS: sync-r4k: Fix KERN_CONT fallout

2017-02-13 18:58:39 +00:00

syscall.c

MIPS: Branch straight to ll in mips_atomic_set()

2017-06-28 12:22:40 +02:00

sysrq.c

MIPS: Refactor dumping of TLB registers for r3k/r4k

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

time.c

KVM: MIPS: Implement VZ support

2017-03-28 14:53:54 +01:00

topology.c

…

traps.c

format-security: move static strings to const

2017-05-08 17:15:14 -07:00

unaligned.c

MIPS: unaligned: Add DSP lwx & lhx missaligned access support

2017-06-29 02:42:24 +02:00

uprobes.c

MIPS: uprobes: Remove __weak attribute from arch_uprobe_copy_ixol.

2017-01-03 16:34:48 +01:00

vdso.c

userfaultfd: non-cooperative: add event for memory unmaps

2017-02-24 17:46:55 -08:00

vmlinux.lds.S

debug: Fix __bug_table[] in arch linker scripts

2017-04-03 10:22:40 +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

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