linux/arch/arm64
Dave Martin 7582e22038 arm64/sve: Backend logic for setting the vector length
This patch implements the core logic for changing a task's vector
length on request from userspace.  This will be used by the ptrace
and prctl frontends that are implemented in later patches.

The SVE architecture permits, but does not require, implementations
to support vector lengths that are not a power of two.  To handle
this, logic is added to check a requested vector length against a
possibly sparse bitmap of available vector lengths at runtime, so
that the best supported value can be chosen.

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 15:24:16 +00:00
..
boot ARM: arm64: Devicetree updates for v4.14 2017-09-10 20:54:48 -07:00
configs ARM/arm64: SoC platform updates for v4.14 2017-09-10 20:35:46 -07:00
crypto crypto: arm64/aes - avoid expanded lookup tables in the final round 2017-08-04 09:27:26 +08:00
include arm64/sve: Backend logic for setting the vector length 2017-11-03 15:24:16 +00:00
kernel arm64/sve: Backend logic for setting the vector length 2017-11-03 15:24:16 +00:00
kvm arm64: KVM: Hide unsupported AArch64 CPU features from guests 2017-11-03 15:24:12 +00:00
lib arm64: use WFE for long delays 2017-10-13 18:56:15 +01:00
mm arm64: explicitly mask all exceptions 2017-11-02 15:55:40 +00:00
net bpf, arm64: implement jiting of BPF_J{LT, LE, SLT, SLE} 2017-08-09 16:53:56 -07:00
xen
Kconfig arm64/sve: Kconfig update and conditional compilation support 2017-11-03 15:24:14 +00:00
Kconfig.debug arm64: relocation testing module 2017-04-04 17:03:32 +01:00
Kconfig.platforms ARM: arm64: Devicetree updates for v4.14 2017-09-10 20:54:48 -07:00
Makefile arm64: prevent regressions in compressed kernel image size when upgrading to binutils 2.27 2017-10-30 13:45:12 +00:00