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linux/arch/arm64/kernel
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Dave Martin 22043a3c08 arm64/sve: Low-level CPU setup 
To enable the kernel to use SVE, SVE traps from EL1 to EL2 must be
disabled.  To take maximum advantage of the hardware, the full
available vector length also needs to be enabled for EL1 by
programming ZCR_EL2.LEN.  (The kernel will program ZCR_EL1.LEN as
required, but this cannot override the limit set by ZCR_EL2.)

This patch makes the appropriate changes to the EL2 early setup
code.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
 		2017-11-03 15:24:15 +00:00
..
probes arm64: introduce separated bits for mm_context_t flags 2017-08-22 18:13:04 +01:00
vdso arm64: vdso: fix clock_getres for 4GiB-aligned res 2017-10-31 09:49:33 +00:00
.gitignore arm64: Build infrastructure 2012-09-17 13:42:21 +01:00
Makefile arm64: remove unneeded copy to init_utsname()->machine 2017-10-02 10:13:05 +01:00
acpi.c ACPI / boot: Correct address space of __acpi_map_table() 2017-07-24 22:47:56 +02:00
acpi_numa.c arm64/numa: avoid inconsistent information to be printed 2016-09-09 14:59:08 +01:00
acpi_parking_protocol.c arm64: fix endianness annotation in acpi_parking_protocol.c 2017-06-29 11:33:15 +01:00
alternative.c arm64: fix endianness annotation for __apply_alternatives()/get_alt_insn() 2017-06-29 16:32:43 +01:00
arm64ksyms.c arm64: switch to RAW_COPY_USER 2017-03-28 18:23:24 -04:00
armv8_deprecated.c arm64: Port deprecated instruction emulation to new sysctl interface 2017-11-03 15:24:12 +00:00
asm-offsets.c arm64: unwind: reference pt_regs via embedded stack frame 2017-08-09 14:07:13 +01:00
cacheinfo.c arm64: cacheinfo: Remove CCSIDR-based cache information probing 2017-03-20 16:16:54 +00:00
cpu-reset.S arm64: Add back cpu reset routines 2016-06-27 16:31:25 +01:00
cpu-reset.h arm64: Use __pa_symbol for kernel symbols 2017-01-12 15:05:39 +00:00
cpu_errata.c arm64: Add workaround for Cavium Thunder erratum 30115 2017-06-15 09:45:04 +01:00
cpu_ops.c arm64: Convert to using %pOF instead of full_name 2017-07-20 10:28:41 +01:00
cpufeature.c arm64: Fix single stepping in kernel traps 2017-10-25 11:57:33 +01:00
cpuidle.c arm64: kernel: Update kerneldoc for cpu_suspend() rename 2017-03-10 18:06:24 +00:00
cpuinfo.c arm64: Expose support for optional ARMv8-A features 2017-10-11 15:28:40 +01:00
crash_dump.c arm64: kdump: provide /proc/vmcore file 2017-04-05 18:31:38 +01:00
debug-monitors.c arm64: introduce an order for exceptions 2017-11-02 15:55:41 +00:00
efi-entry.S arm64: efi-entry.S: avoid open-coded adr_l 2017-01-17 17:41:14 +00:00
efi-header.S arm64: efi: split Image code and data into separate PE/COFF sections 2017-04-04 17:50:59 +01:00
efi.c efi/arm: Enable DMI/SMBIOS 2017-06-05 17:50:44 +02:00
entry-fpsimd.S arm64/sve: Low-level SVE architectural state manipulation functions 2017-11-03 15:24:14 +00:00
entry-ftrace.S arm64: Fix static use of function graph 2017-11-03 12:05:23 +00:00
entry.S arm64: entry.S: move SError handling into a C function for future expansion 2017-11-02 15:55:41 +00:00
entry32.S arm64: entry32: remove pointless register assignment 2015-07-10 16:47:13 +01:00
fpsimd.c arm64: fpsimd: Simplify uses of {set,clear}_ti_thread_flag() 2017-11-03 15:24:13 +00:00
ftrace-mod.S arm64: ftrace: add support for far branches to dynamic ftrace 2017-06-07 11:52:02 +01:00
ftrace.c arm64: ftrace: fix !CONFIG_ARM64_MODULE_PLTS kernels 2017-06-23 18:21:13 +01:00
head.S arm64/sve: Low-level CPU setup 2017-11-03 15:24:15 +00:00
hibernate-asm.S arm64: Introduce raw_{d,i}cache_line_size 2016-09-09 15:03:29 +01:00
hibernate.c arm64: explicitly mask all exceptions 2017-11-02 15:55:40 +00:00
hw_breakpoint.c arm64: hw_breakpoint: fix watchpoint matching for tagged pointers 2017-05-09 17:26:40 +01:00
hyp-stub.S arm64: hyp-stub: Zero x0 on successful stub handling 2017-04-09 07:49:35 -07:00
image.h arm64 updates for 4.7: 2016-05-16 17:17:24 -07:00
insn.c arm64 updates for 4.13: 2017-07-05 17:09:27 -07:00
io.c arm64: Avoid aligning normal memory pointers in __memcpy_{to,from}io 2017-10-24 16:23:07 +01:00
irq.c arm64: add basic VMAP_STACK support 2017-08-15 18:36:04 +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
kaslr.c arm64: kaslr: Adjust the offset to avoid Image across alignment boundary 2017-08-22 18:15:42 +01:00
kgdb.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
kuser32.S arm64: Add __NR_* definitions for compat syscalls 2014-07-10 11:02:40 +01:00
machine_kexec.c arm64: explicitly mask all exceptions 2017-11-02 15:55:40 +00:00
module-plts.c arm64: module: split core and init PLT sections 2017-04-26 12:31:00 +01:00
module.c arm64: fix endianness annotation for reloc_insn_movw() & reloc_insn_imm() 2017-06-29 11:09:39 +01:00
module.lds arm64: module: split core and init PLT sections 2017-04-26 12:31:00 +01:00
paravirt.c arm64: introduce CONFIG_PARAVIRT, PARAVIRT_TIME_ACCOUNTING and pv_time_ops 2015-12-21 14:40:54 +00:00
pci.c PCI: Add a generic weak pcibios_align_resource() 2017-08-02 14:53:16 -05:00
perf_callchain.c arm64: unwind: remove sp from struct stackframe 2017-08-09 14:10:29 +01:00
perf_event.c arm64: perf: add support for Cortex-A35 2017-08-10 17:46:49 +01:00
perf_regs.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
process.c arm64: traps: Pretty-print pstate in register dumps 2017-10-27 16:26:58 +01:00
psci.c arm64: Use __pa_symbol for kernel symbols 2017-01-12 15:05:39 +00:00
ptrace.c Merge branch 'arm64/vmap-stack' of git://git.kernel.org/pub/scm/linux/kernel/git/mark/linux into for-next/core 2017-08-15 18:40:58 +01:00
reloc_test_core.c arm64: relocation testing module 2017-04-04 17:03:32 +01:00
reloc_test_syms.S arm64: relocation testing module 2017-04-04 17:03:32 +01:00
relocate_kernel.S arm64: Introduce raw_{d,i}cache_line_size 2016-09-09 15:03:29 +01:00
return_address.c arm64: unwind: remove sp from struct stackframe 2017-08-09 14:10:29 +01:00
setup.c arm64: Move the async/fiq helpers to explicitly set process context flags 2017-11-02 15:55:41 +00:00
signal.c arm64: signal: Verify extra data is user-readable in sys_rt_sigreturn 2017-11-03 15:24:11 +00:00
signal32.c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace 2017-09-11 18:34:47 -07:00
sleep.S arm64: move sp_el0 and tpidr_el1 into cpu_suspend_ctx 2016-11-11 18:25:44 +00:00
smccc-call.S firmware: qcom: scm: Fix interrupted SCM calls 2017-02-03 18:46:33 +00:00
smp.c arm64: Move the async/fiq helpers to explicitly set process context flags 2017-11-02 15:55:41 +00:00
smp_spin_table.c arm64: Use __pa_symbol for kernel symbols 2017-01-12 15:05:39 +00:00
stacktrace.c arm64: stacktrace: avoid listing stacktrace functions in stacktrace 2017-09-13 18:53:16 -07:00
suspend.c arm64: explicitly mask all exceptions 2017-11-02 15:55:40 +00:00
sys.c arm64: compat: Check for AArch32 state 2016-04-20 12:22:42 +01:00
sys32.c arm64: fix implementation of mmap2 compat syscall 2015-03-19 10:43:51 +00:00
sys_compat.c sched/headers: Prepare for the reduction of <linux/sched.h>'s signal API dependency 2017-03-02 08:42:37 +01:00
time.c arm64: unwind: remove sp from struct stackframe 2017-08-09 14:10:29 +01:00
topology.c arm64: Convert to using %pOF instead of full_name 2017-07-20 10:28:41 +01:00
trace-events-emulation.h arm64: Trace emulation of AArch32 legacy instructions 2014-11-20 16:35:02 +00:00
traps.c arm64/sve: System register and exception syndrome definitions 2017-11-03 15:24:13 +00:00
vdso.c arm64/vdso: Support mremap() for vDSO 2017-08-09 12:16:28 +01:00
vmlinux.lds.S arm64: add basic VMAP_STACK support 2017-08-15 18:36:04 +01:00