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20b8547277
linux_dsm_epyc7002/arch/arm64/kernel
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Dave Martin 20b8547277 arm64: fpsimd: Split cpu field out from struct fpsimd_state 
In preparation for using a common representation of the FPSIMD
state for tasks and KVM vcpus, this patch separates out the "cpu"
field that is used to track the cpu on which the state was most
recently loaded.

This will allow common code to operate on task and vcpu contexts
without requiring the cpu field to be stored at the same offset
from the FPSIMD register data in both cases.  This should avoid the
need for messing with the definition of those parts of struct
vcpu_arch that are exposed in the KVM user ABI.

The resulting change is also convenient for grouping and defining
the set of thread_struct fields that are supposed to be accessible
to copy_{to,from}_user(), which includes user_fpsimd_state but
should exclude the cpu field.  This patch does not amend the
usercopy whitelist to match: that will be addressed in a subsequent
patch.

Signed-off-by: Dave Martin <Dave.Martin@arm.com>
[will: inline fpsimd_flush_state for now]
Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-03-28 15:20:17 +01:00
..
probes License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
vdso arm64 updates for 4.15 2017-11-15 10:56:56 -08:00
.gitignore arm64: Build infrastructure 2012-09-17 13:42:21 +01:00
acpi_numa.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
acpi_parking_protocol.c arm64: fix endianness annotation in acpi_parking_protocol.c 2017-06-29 11:33:15 +01:00
acpi.c More ACPI updates for v4.16-rc1 2018-02-09 09:44:25 -08:00
alternative.c arm64: alternatives: use tpidr_el2 on VHE hosts 2018-01-13 10:44:33 +00:00
arm64ksyms.c arm64: uaccess: Mask __user pointers for __arch_{clear, copy_*}_user 2018-02-06 22:53:40 +00:00
armv8_deprecated.c arm64: signal: Make force_signal_inject more robust 2018-03-06 18:52:22 +00:00
asm-offsets.c KVM: arm64: Handle RAS SErrors from EL2 on guest exit 2018-01-16 15:09:36 +00:00
bpi.S arm64: Kill PSCI_GET_VERSION as a variant-2 workaround 2018-02-06 22:54:18 +00:00
cacheinfo.c arm64: cacheinfo: Remove CCSIDR-based cache information probing 2017-03-20 16:16:54 +00:00
cpu_errata.c arm64: cpufeature: Avoid warnings due to unused symbols 2018-03-27 11:51:12 +01:00
cpu_ops.c arm64: cpu_ops: Add missing 'const' qualifiers 2017-12-01 13:05:08 +00:00
cpu-reset.h arm64: Use __pa_symbol for kernel symbols 2017-01-12 15:05:39 +00:00
cpu-reset.S arm64: idmap: Use "awx" flags for .idmap.text .pushsection directives 2018-02-06 22:53:27 +00:00
cpufeature.c Revert "arm64: Revert L1_CACHE_SHIFT back to 6 (64-byte cache line size)" 2018-03-27 12:04:51 +01:00
cpuidle.c ARM64 / cpuidle: Use new cpuidle macro for entering retention state 2018-01-02 13:50:34 +00:00
cpuinfo.c arm64: Expose Arm v8.4 features 2018-03-19 18:14:27 +00:00
crash_dump.c arm64: kdump: provide /proc/vmcore file 2017-04-05 18:31:38 +01:00
debug-monitors.c arm64: Use arm64_force_sig_info instead of force_sig_info 2018-03-06 18:52:32 +00:00
efi-entry.S arm64: Add software workaround for Falkor erratum 1041 2018-02-06 22:53:13 +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 arm64: mm: Use READ_ONCE/WRITE_ONCE when accessing page tables 2018-02-16 18:13:57 +00:00
entry32.S arm64: entry32: remove pointless register assignment 2015-07-10 16:47:13 +01:00
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 2nd set of arm64 updates for 4.16: 2018-02-08 10:44:25 -08:00
fpsimd.c arm64: fpsimd: Split cpu field out from struct fpsimd_state 2018-03-28 15:20:17 +01:00
ftrace.c arm64: ftrace: emit ftrace-mod.o contents through code 2017-12-01 13:04:59 +00:00
head.S arm64: idmap: Use "awx" flags for .idmap.text .pushsection directives 2018-02-06 22:53:27 +00:00
hibernate-asm.S arm64: assembler: Change order of macro arguments in phys_to_ttbr 2018-02-06 22:53:21 +00:00
hibernate.c arm64: mm: Use READ_ONCE/WRITE_ONCE when accessing page tables 2018-02-16 18:13:57 +00:00
hw_breakpoint.c arm64: hw_breakpoint: Use linux/uaccess.h instead of asm/uaccess.h 2017-12-12 11:53:26 +00:00
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 vmap_stack header file 2018-01-13 10:45:03 +00:00
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/kernel: kaslr: reduce module randomization range to 4 GB 2018-03-08 13:49:26 +00:00
kgdb.c arm64/debug: Fix registers on sleeping tasks 2018-03-06 18:52:34 +00:00
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
Makefile arm64: kernel: Add arch-specific SDEI entry code and CPU masking 2018-01-13 10:45:17 +00:00
module-plts.c arm64/kernel: enable A53 erratum #8434319 handling at runtime 2018-03-09 13:23:09 +00:00
module.c arm64/kernel: enable A53 erratum #8434319 handling at runtime 2018-03-09 13:23:09 +00:00
module.lds arm64: ftrace: emit ftrace-mod.o contents through code 2017-12-01 13:04:59 +00:00
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: correct PMUVer probing 2018-02-20 11:34:54 +00:00
perf_regs.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
process.c arm64: __show_regs: Only resolve kernel symbols when running at EL1 2018-02-19 17:07:12 +00:00
psci.c arm64: Use __pa_symbol for kernel symbols 2017-01-12 15:05:39 +00:00
ptrace.c arm64: fpsimd: Split cpu field out from struct fpsimd_state 2018-03-28 15:20:17 +01:00
reloc_test_core.c arm64: fix undefined reference to 'printk' 2018-03-19 18:14:25 +00:00
reloc_test_syms.S arm64: fix undefined reference to 'printk' 2018-03-19 18:14:25 +00:00
relocate_kernel.S arm64: Add software workaround for Falkor erratum 1041 2018-02-06 22:53:13 +00:00
return_address.c arm64: unwind: remove sp from struct stackframe 2017-08-09 14:10:29 +01:00
sdei.c arm64: sdei: Add trampoline code for remapping the kernel 2018-01-14 18:49:50 +00:00
setup.c arm64: Move the async/fiq helpers to explicitly set process context flags 2017-11-02 15:55:41 +00:00
signal32.c arm64: fpsimd: Split cpu field out from struct fpsimd_state 2018-03-28 15:20:17 +01:00
signal.c arm64: fpsimd: Split cpu field out from struct fpsimd_state 2018-03-28 15:20:17 +01:00
sleep.S arm64: idmap: Use "awx" flags for .idmap.text .pushsection directives 2018-02-06 22:53:27 +00:00
smccc-call.S firmware: qcom: scm: Fix interrupted SCM calls 2017-02-03 18:46:33 +00:00
smp_spin_table.c arm64: Use __pa_symbol for kernel symbols 2017-01-12 15:05:39 +00:00
smp.c arm64: capabilities: Change scope of VHE to Boot CPU feature 2018-03-26 18:01:41 +01:00
stacktrace.c arm64: fix unwind_frame() for filtered out fn for function graph tracing 2018-02-23 13:46:38 +00:00
suspend.c arm64: uaccess: Add PAN helper 2018-01-13 10:45:10 +00:00
sys32.c arm64: fix implementation of mmap2 compat syscall 2015-03-19 10:43:51 +00:00
sys_compat.c arm64: Mirror arm for unimplemented compat syscalls 2018-03-05 12:06:43 +00:00
sys.c arm64: compat: Check for AArch32 state 2016-04-20 12:22:42 +01:00
time.c arm64: fix unwind_frame() for filtered out fn for function graph tracing 2018-02-23 13:46:38 +00:00
topology.c arm64: Use of_cpu_node_to_id helper for CPU topology parsing 2018-01-02 16:43:12 +00:00
trace-events-emulation.h License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
traps.c arm64: capabilities: Update prototype for enable call back 2018-03-26 18:00:37 +01:00
vdso.c arm64/vdso: Support mremap() for vDSO 2017-08-09 12:16:28 +01:00
vmlinux.lds.S arm64: Extend early page table code to allow for larger kernels 2018-01-14 18:49:52 +00:00