From: Dave.Martin@arm.com (Dave Martin)
To: linux-arm-kernel@lists.infradead.org
Subject: [RFC PATCH 07/29] arm64/sve: Allow kernel-mode NEON to be disabled in Kconfig
Date: Fri, 25 Nov 2016 19:38:55 +0000 [thread overview]
Message-ID: <1480102762-23647-8-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1480102762-23647-1-git-send-email-Dave.Martin@arm.com>
Currently, support for kernel-mode NEON alongside the Scalable
Vector Extension doesn't work, so allow KERNEL_MODE_NEON to be
disabled.
This is only needed for bisectability of the SVE patches and will
be removed later.
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
---
arch/arm64/Kconfig | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index d008bb6..1bdcaf1 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -223,9 +223,6 @@ config SWIOTLB
config IOMMU_HELPER
def_bool SWIOTLB
-config KERNEL_MODE_NEON
- def_bool y
-
config FIX_EARLYCON_MEM
def_bool y
@@ -268,6 +265,10 @@ endmenu
menu "Kernel Features"
+config KERNEL_MODE_NEON
+ bool "Support NEON/FPSIMD code in the kernel"
+ default y
+
menu "ARM errata workarounds via the alternatives framework"
config ARM64_ERRATUM_826319
--
2.1.4
next prev parent reply other threads:[~2016-11-25 19:38 UTC|newest]
Thread overview: 61+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-11-25 19:38 [RFC PATCH 00/29] arm64: Scalable Vector Extension core support Dave Martin
2016-11-25 19:38 ` [RFC PATCH 01/29] arm64: signal: Refactor sigcontext parsing in rt_sigreturn Dave Martin
2016-11-25 19:38 ` [RFC PATCH 02/29] arm64: signal: factor frame layout and population into separate passes Dave Martin
2016-11-25 19:38 ` [RFC PATCH 03/29] arm64: signal: factor out signal frame record allocation Dave Martin
2016-11-25 19:38 ` [RFC PATCH 04/29] arm64: signal: Allocate extra sigcontext space as needed Dave Martin
2016-11-25 19:38 ` [RFC PATCH 05/29] arm64: signal: Parse extra_context during sigreturn Dave Martin
2016-11-25 19:38 ` [RFC PATCH 06/29] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON Dave Martin
2016-11-25 20:25 ` Ard Biesheuvel
2016-11-25 19:38 ` Dave Martin [this message]
2016-11-25 19:38 ` [RFC PATCH 08/29] arm64/sve: Low-level save/restore code Dave Martin
2016-11-25 19:38 ` [RFC PATCH 09/29] arm64/sve: Boot-time feature detection and reporting Dave Martin
2016-11-25 19:38 ` [RFC PATCH 10/29] arm64/sve: Boot-time feature enablement Dave Martin
2016-11-25 19:38 ` [RFC PATCH 11/29] arm64/sve: Expand task_struct for Scalable Vector Extension state Dave Martin
2016-11-25 19:39 ` [RFC PATCH 12/29] arm64/sve: Save/restore SVE state on context switch paths Dave Martin
2016-11-25 19:39 ` [RFC PATCH 13/29] arm64/sve: Basic support for KERNEL_MODE_NEON Dave Martin
2016-11-25 20:45 ` Ard Biesheuvel
2016-11-26 11:30 ` Catalin Marinas
2016-11-28 11:47 ` Dave Martin
2016-11-28 12:06 ` Catalin Marinas
2016-11-28 12:29 ` Dave Martin
2016-12-06 15:36 ` Ard Biesheuvel
2016-11-25 19:39 ` [RFC PATCH 14/29] Revert "arm64/sve: Allow kernel-mode NEON to be disabled in Kconfig" Dave Martin
2016-11-25 19:39 ` [RFC PATCH 15/29] arm64/sve: Restore working FPSIMD save/restore around signals Dave Martin
2016-11-25 19:39 ` [RFC PATCH 16/29] arm64/sve: signal: Add SVE state record to sigcontext Dave Martin
2016-11-25 19:39 ` [RFC PATCH 17/29] arm64/sve: signal: Dump Scalable Vector Extension registers to user stack Dave Martin
2016-11-25 19:39 ` [RFC PATCH 18/29] arm64/sve: signal: Restore FPSIMD/SVE state in rt_sigreturn Dave Martin
2016-11-25 19:39 ` [RFC PATCH 19/29] arm64/sve: Avoid corruption when replacing the SVE state Dave Martin
2016-11-25 19:39 ` [RFC PATCH 20/29] arm64/sve: traps: Add descriptive string for SVE exceptions Dave Martin
2016-11-25 19:39 ` [RFC PATCH 21/29] arm64/sve: Enable SVE on demand for userspace Dave Martin
2016-11-25 19:39 ` [RFC PATCH 22/29] arm64/sve: Implement FPSIMD-only context for tasks not using SVE Dave Martin
2016-11-25 19:39 ` [RFC PATCH 23/29] arm64/sve: Move ZEN handling to the common task_fpsimd_load() path Dave Martin
2016-11-25 19:39 ` [RFC PATCH 24/29] arm64/sve: Discard SVE state on system call Dave Martin
2016-11-25 19:39 ` [RFC PATCH 25/29] arm64/sve: Avoid preempt_disable() during sigreturn Dave Martin
2016-11-25 19:39 ` [RFC PATCH 26/29] arm64/sve: Avoid stale user register state after SVE access exception Dave Martin
2016-11-25 19:39 ` [RFC PATCH 27/29] arm64/sve: ptrace support Dave Martin
2016-11-25 19:39 ` [RFC PATCH 28/29] arm64: KVM: Treat SVE use by guests as undefined instruction execution Dave Martin
2016-11-25 19:39 ` [RFC PATCH 29/29] arm64/sve: Limit vector length to 512 bits by default Dave Martin
2016-11-30 9:56 ` [RFC PATCH 00/29] arm64: Scalable Vector Extension core support Yao Qi
2016-11-30 12:06 ` Dave Martin
2016-11-30 12:22 ` Szabolcs Nagy
2016-11-30 14:10 ` Dave Martin
2016-11-30 12:38 ` Florian Weimer
2016-11-30 13:56 ` Dave Martin
2016-12-01 9:21 ` Florian Weimer
2016-12-01 10:30 ` Dave Martin
2016-12-01 12:19 ` Dave Martin
2016-12-05 10:44 ` Florian Weimer
2016-12-05 11:07 ` Szabolcs Nagy
2016-12-05 15:04 ` Dave Martin
2016-12-02 11:48 ` Dave Martin
2016-12-02 16:34 ` Florian Weimer
2016-12-02 16:59 ` Joseph Myers
2016-12-02 18:21 ` Dave Martin
2016-12-02 21:56 ` Joseph Myers
2016-12-02 21:56 ` Yao Qi
2016-12-05 15:12 ` Dave Martin
2016-12-05 22:42 ` Torvald Riegel
2016-12-06 14:46 ` Dave Martin
2016-11-30 10:08 ` Florian Weimer
2016-11-30 11:05 ` Szabolcs Nagy
2016-11-30 14:06 ` Dave Martin
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