iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
linux/arch/mips/kernel
History
Paul Burton c9017757c5 MIPS: init upper 64b of vector registers when MSA is first used 
When a task first makes use of MSA we need to ensure that the upper
64b of the vector registers are set to some value such that no
information can be leaked to it from the previous task to use MSA
context on the CPU. The architecture formerly specified that these
bits would be cleared to 0 when a scalar FP instructions wrote to the
aliased FP registers, which would have implicitly handled this as the
kernel restored scalar FP context. However more recent versions of the
specification now state that the value of the bits in such cases is
unpredictable. Initialise them explictly to be sure, and set all the
bits to 1 rather than 0 for consistency with the least significant
64b.

Signed-off-by: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/7497/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2014-08-02 00:06:44 +02:00
..
.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: save/restore MSACSR register on context switch
2014-08-02 00:06:43 +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: Fix gigaton of warning building with microMIPS.
2014-03-31 18:17:12 +02:00
branch.c
Merge branch '3.15-fixes' into mips-for-linux-next
2014-06-04 22:53:02 +02:00
cevt-bcm1480.c
MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code
2013-07-14 19:36:51 -04:00
cevt-ds1287.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cevt-gic.c
MIPS: allow GIC clockevent device config from other CPUs
2014-05-02 16:39:11 +01:00
cevt-gt641xx.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cevt-r4k.c
Merge branch 'wip-mips-pm' of https://github.com/paulburton/linux into mips-for-linux-next
2014-05-29 15:08:23 +02:00
cevt-sb1250.c
MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code
2013-07-14 19:36:51 -04:00
cevt-txx9.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
cps-vec.S
MIPS: smp-cps: duplicate core0 CCA on secondary cores
2014-05-28 16:20:33 +01:00
cpu-bugs64.c
MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code
2013-07-14 19:36:51 -04:00
cpu-probe.c
MIPS: kernel: cpu-probe: Detect unique RI/XI exceptions
2014-08-02 00:06:40 +02:00
crash_dump.c
mips: remove savemaxmem parameter setup
2013-07-03 16:08:03 -07:00
crash.c
mips: delete non-required instances of include <linux/init.h>
2014-01-24 22:39:56 +01:00
csrc-bcm1480.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
csrc-gic.c
MIPS: Refactor GIC clocksource code.
2013-05-09 17:55:20 +02:00
csrc-ioasic.c
MIPS: DECstation HRT initialization rearrangement
2013-09-13 11:56:13 +02:00
csrc-r4k.c
mips: convert to clocksource_register_hz/khz
2011-02-21 13:33:50 -08:00
csrc-sb1250.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +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
entry.S
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
ftrace.c
Most of the changes were largely clean ups, and some documentation.
2014-04-03 10:26:31 -07:00
genex.S
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
gpio_txx9.c
…
head.S
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
i8253.c
MIPS: irq: Remove IRQF_DISABLED
2011-12-07 22:03:45 +00:00
i8259.c
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
idle.c
Merge branch 'wip-mips-pm' of https://github.com/paulburton/linux into mips-for-linux-next
2014-05-29 15:08:23 +02:00
irq_cpu.c
MIPS: Panic messages should not end in \n.
2013-10-29 21:24:19 +01:00
irq_txx9.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
irq-gic.c
MIPS: GIC: Generalise check for pending interrupts
2014-08-02 00:06:41 +02:00
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
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2014-06-09 18:10:34 -07:00
jump_label.c
MIPS: jump label: Add MIPS support.
2011-01-18 19:30:24 +01:00
kgdb.c
MIPS: kernel: {ftrace,kgdb}: Set correct address limit for cache flushes
2014-03-26 23:09:18 +01:00
kprobes.c
kprobes/mips: Fix to check double free of insn slot
2013-05-22 12:48:30 +02:00
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: Add support
2012-12-13 16:46:47 +01:00
Makefile
MIPS: OCTEON: Enable use of FPU
2014-05-30 21:01:09 +02:00
mcount.S
MIPS: Ftrace: Fix function tracing return address to match
2013-09-03 14:46:27 +02:00
mips_ksyms.c
MIPS: checksum: Split the 'copy_user' symbol
2014-03-26 23:09:17 +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: Add generic CM probe & access code
2014-03-06 21:25:22 +01:00
mips-cpc.c
MIPS: smp-cps: rework core/VPE initialisation
2014-05-28 16:20:28 +01:00
mips-mt-fpaff.c
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
mips-mt.c
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
module-rela.c
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
module.c
MIPS: Use NUMA_NO_NODE instead of -1 for node ID.
2013-10-29 21:24:14 +01:00
octeon_switch.S
MIPS: OCTEON: Enable use of FPU
2014-05-30 21:01:09 +02:00
perf_event_mipsxx.c
MIPS: perf: Add hardware events for P5600
2014-08-02 00:06:38 +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: {pm,smp}-cps: use cpu_vpe_id macro
2014-07-30 20:48:42 +02:00
pm.c
MIPS: PM: Implement PM helper macros
2014-05-02 16:39:10 +01:00
proc.c
MIPS: cpu: Add new cpu option for Hardware Table Walker.
2014-08-02 00:06:38 +02:00
process.c
MIPS: Remove asm/user.h
2014-08-02 00:06:37 +02:00
prom.c
mips: convert fdt pointers to opaque pointers
2014-04-30 00:59:13 -05:00
ptrace32.c
MIPS: Remove asm/user.h
2014-08-02 00:06:37 +02:00
ptrace.c
MIPS: Remove asm/user.h
2014-08-02 00:06:37 +02:00
r4k_fpu.S
Revert "MIPS: Save/restore MSA context around signals"
2014-06-26 10:48:18 +01:00
r4k_switch.S
MIPS: init upper 64b of vector registers when MSA is first used
2014-08-02 00:06:44 +02:00
r2300_fpu.S
MIPS: Whitespace cleanup.
2013-02-01 10:00:22 +01:00
r2300_switch.S
MIPS: stack protector: Fix per-task canary switch
2013-10-07 15:31:04 +02:00
r6000_fpu.S
update David Miller's old email address
2011-04-06 06:19:38 -07:00
relocate_kernel.S
MIPS: kdump: Skip walking indirection page for crashkernels
2013-09-05 20:53:37 +02:00
reset.c
mips: migrate core kernel file from module.h --> export.h
2011-10-31 19:30:56 -04:00
rtlx-cmp.c
MIPS: APRP: Unregister rtlx interrupt hook at module exit
2014-03-06 20:55:07 +01:00
rtlx-mt.c
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
rtlx.c
MIPS: APRP: Code formatting clean-ups.
2014-01-22 20:19:02 +01:00
scall32-o32.S
MIPS: O32/32-bit: Remove outdated comment
2014-08-02 00:06:37 +02:00
scall64-64.S
MIPS: Add numa api support
2014-07-30 21:46:41 +02:00
scall64-n32.S
MIPS: Add numa api support
2014-07-30 21:46:41 +02:00
scall64-o32.S
MIPS: Add numa api support
2014-07-30 21:46:41 +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: Add NUMA support for Loongson-3
2014-07-30 21:46:19 +02:00
signal32.c
Revert "MIPS: Save/restore MSA context around signals"
2014-06-26 10:48:18 +01:00
signal_n32.c
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2013-03-02 07:44:16 -08:00
signal-common.h
most of set_current_blocked() callers want SIGKILL/SIGSTOP removed from set
2012-06-01 12:58:51 -04:00
signal.c
Revert "MIPS: Save/restore MSA context around signals"
2014-06-26 10:48:18 +01:00
smp-bmips.c
MIPS: SMP: Remove plat_smp_ops cpus_done method.
2014-05-27 11:06:42 +02:00
smp-cmp.c
MIPS: SMP: Remove plat_smp_ops cpus_done method.
2014-05-27 11:06:42 +02:00
smp-cps.c
MIPS: smp-cps: Fix entry code cache flush for systems with coherent I/O
2014-07-30 20:49:36 +02:00
smp-gic.c
cpuidle: cpuidle-cps: add MIPS CPS cpuidle driver
2014-05-28 16:20:36 +01:00
smp-mt.c
MIPS: SMP: Remove plat_smp_ops cpus_done method.
2014-05-27 11:06:42 +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: Support CPU topology files in sysfs
2014-07-30 21:45:39 +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: Use current_cpu_type() instead of c->cputype
2014-03-31 18:17:12 +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: Fix gigaton of warning building with microMIPS.
2014-03-31 18:17:12 +02:00
time.c
MIPS: MT: Remove SMTC support
2014-05-24 00:07:01 +02:00
topology.c
…
traps.c
MIPS: init upper 64b of vector registers when MSA is first used
2014-08-02 00:06:44 +02:00
unaligned.c
MIPS: kernel: unaligned: Handle unaligned accesses for EVA
2014-03-26 23:09:16 +01:00
vdso.c
coredump: remove VM_ALWAYSDUMP flag
2012-03-23 16:58:42 -07:00
vmlinux.lds.S
MIPS: Discard .eh_frame sections in linker script.
2013-08-26 15:33:41 +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
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
2014-01-30 17:20:32 -08:00
watch.c
MIPS: Delete __cpuinit/__CPUINIT usage from MIPS code
2013-07-14 19:36:51 -04:00