From: Dave Martin <Dave.Martin@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: "Catalin Marinas" <catalin.marinas@arm.com>,
"Will Deacon" <will.deacon@arm.com>,
"Ard Biesheuvel" <ard.biesheuvel@linaro.org>,
"Alex Bennée" <alex.bennee@linaro.org>,
"Szabolcs Nagy" <szabolcs.nagy@arm.com>,
"Richard Sandiford" <richard.sandiford@arm.com>,
"Okamoto Takayuki" <tokamoto@jp.fujitsu.com>,
kvmarm@lists.cs.columbia.edu, libc-alpha@sourceware.org,
linux-arch@vger.kernel.org
Subject: [PATCH v3 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON
Date: Tue, 10 Oct 2017 18:39:00 -0000 [thread overview]
Message-ID: <1507660725-7986-4-git-send-email-Dave.Martin@arm.com> (raw)
In-Reply-To: <1507660725-7986-1-git-send-email-Dave.Martin@arm.com>
The EFI runtime services ABI permits calls to EFI to clobber
certain FPSIMD/NEON registers, as per the AArch64 procedure call
standard.
Saving/restoring the clobbered registers around such calls needs
KERNEL_MODE_NEON, but the dependency is missing from Kconfig.
This patch adds the missing dependency.
This will aid bisection of the patches implementing support for the
ARM Scalable Vector Extension (SVE).
Signed-off-by: Dave Martin <Dave.Martin@arm.com>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
---
arch/arm64/Kconfig | 1 +
1 file changed, 1 insertion(+)
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
index 0df64a6..ca711ac 100644
--- a/arch/arm64/Kconfig
+++ b/arch/arm64/Kconfig
@@ -1063,6 +1063,7 @@ config EFI_STUB
config EFI
bool "UEFI runtime support"
depends on OF && !CPU_BIG_ENDIAN
+ depends on KERNEL_MODE_NEON
select LIBFDT
select UCS2_STRING
select EFI_PARAMS_FROM_FDT
--
2.1.4
next prev parent reply other threads:[~2017-10-10 18:39 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-10 18:38 [PATCH v3 00/28] ARM Scalable Vector Extension (SVE) Dave Martin
2017-10-10 18:39 ` [PATCH v3 24/28] arm64/sve: KVM: Hide SVE from CPU features exposed to guests Dave Martin
2017-10-11 16:31 ` Marc Zyngier
2017-10-12 17:13 ` Catalin Marinas
2017-10-17 13:58 ` Christoffer Dall
2017-10-17 14:08 ` Dave Martin
2017-10-17 14:29 ` Marc Zyngier
2017-10-17 15:47 ` Dave Martin
2017-10-18 13:21 ` Christoffer Dall
2017-10-18 15:01 ` Dave Martin
2017-10-18 16:49 ` Christoffer Dall
2017-10-10 18:39 ` [PATCH v3 01/28] regset: Add support for dynamically sized regsets Dave Martin
2017-10-11 14:14 ` Catalin Marinas
2017-10-11 14:45 ` Dave Martin
2017-10-10 18:39 ` [PATCH v3 08/28] arm64/sve: Kconfig update and conditional compilation support Dave Martin
2017-10-11 14:29 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 21/28] arm64/sve: Add sysctl to set the default vector length for new processes Dave Martin
2017-10-12 17:11 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 20/28] arm64/sve: Add prctl controls for userspace vector length management Dave Martin
2017-10-12 17:11 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 13/28] arm64/sve: Signal handling support Dave Martin
2017-10-11 16:41 ` Catalin Marinas
2017-10-12 16:12 ` Dave Martin
2017-10-13 11:17 ` Catalin Marinas
2017-10-13 14:26 ` Dave Martin
2017-10-10 18:39 ` [PATCH v3 15/28] arm64: cpufeature: Move sys_caps_initialised declarations Dave Martin
2017-10-11 16:50 ` Catalin Marinas
2017-10-10 18:39 ` [RFC PATCH v3 27/28] arm64: signal: Report signal frame size to userspace via auxv Dave Martin
2017-10-11 10:19 ` Szabolcs Nagy
2017-10-11 13:14 ` Dave P Martin
2017-10-10 18:39 ` [PATCH v3 19/28] arm64/sve: ptrace and ELF coredump support Dave Martin
2017-10-12 17:06 ` Catalin Marinas
2017-10-13 16:16 ` Dave Martin
2017-10-18 10:33 ` Catalin Marinas
2017-10-18 16:02 ` Dave Martin
2017-10-10 18:39 ` [PATCH v3 12/28] arm64/sve: Support vector length resetting for new processes Dave Martin
2017-10-11 16:16 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 11/28] arm64/sve: Core task context handling Dave Martin
2017-10-11 16:16 ` Catalin Marinas
2017-10-12 16:05 ` Dave Martin
2017-10-13 13:57 ` Catalin Marinas
2017-10-13 17:53 ` Dave Martin
2017-10-10 18:39 ` [PATCH v3 14/28] arm64/sve: Backend logic for setting the vector length Dave Martin
2017-10-11 16:43 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 07/28] arm64/sve: Low-level SVE architectural state manipulation functions Dave Martin
2017-10-11 14:28 ` Catalin Marinas
2017-10-11 14:39 ` Dave Martin
2017-10-10 18:39 ` [RFC PATCH v3 28/28] arm64/sve: signal: Include SVE when computing AT_MINSIGSTKSZ Dave Martin
2017-10-10 18:39 ` [PATCH v3 16/28] arm64/sve: Probe SVE capabilities and usable vector lengths Dave Martin
2017-10-11 16:55 ` Catalin Marinas
2017-10-12 12:56 ` Suzuki K Poulose
2017-10-16 15:46 ` Dave Martin
2017-10-16 16:28 ` Suzuki K Poulose
2017-10-16 16:44 ` Dave Martin
2017-10-16 16:47 ` Suzuki K Poulose
2017-10-16 16:56 ` Dave Martin
2017-10-16 16:58 ` Suzuki K Poulose
2017-10-10 18:39 ` Dave Martin [this message]
2017-10-11 14:16 ` [PATCH v3 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON Catalin Marinas
2017-10-11 14:35 ` Dave Martin
2017-10-10 18:39 ` [PATCH v3 09/28] arm64/sve: Signal frame and context structure definition Dave Martin
2017-10-11 14:29 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 23/28] arm64/sve: KVM: Treat guest SVE use as undefined instruction execution Dave Martin
2017-10-12 17:13 ` Catalin Marinas
2017-10-17 13:58 ` Christoffer Dall
2017-10-10 18:39 ` [PATCH v3 26/28] arm64/sve: Add documentation Dave Martin
2017-10-11 9:50 ` Szabolcs Nagy
2017-10-11 11:08 ` Dave Martin
2017-10-11 11:30 ` Szabolcs Nagy
2017-10-13 14:24 ` Catalin Marinas
2017-10-13 17:18 ` Dave Martin
2017-10-18 9:32 ` Catalin Marinas
2017-10-13 17:35 ` Dave Martin
2017-10-10 18:39 ` [PATCH v3 18/28] arm64/sve: Preserve SVE registers around EFI runtime service calls Dave Martin
2017-10-12 10:57 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 17/28] arm64/sve: Preserve SVE registers around kernel-mode NEON use Dave Martin
2017-10-12 10:15 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 04/28] arm64: Port deprecated instruction emulation to new sysctl interface Dave Martin
2017-10-11 14:18 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 25/28] arm64/sve: Detect SVE and activate runtime support Dave Martin
2017-10-11 17:12 ` Suzuki K Poulose
2017-10-12 17:14 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 22/28] arm64/sve: KVM: Prevent guests from using SVE Dave Martin
2017-10-11 16:28 ` Marc Zyngier
2017-10-12 11:04 ` Dave Martin
2017-10-12 11:28 ` Marc Zyngier
2017-10-13 14:15 ` Dave Martin
2017-10-13 14:22 ` Marc Zyngier
2017-10-13 16:47 ` Dave Martin
2017-10-12 17:13 ` Catalin Marinas
2017-10-17 11:50 ` Christoffer Dall
2017-10-17 14:31 ` Dave Martin
2017-10-18 13:23 ` Christoffer Dall
2017-10-18 15:00 ` Dave Martin
2017-10-18 19:22 ` Christoffer Dall
2017-10-10 18:39 ` [PATCH v3 05/28] arm64: fpsimd: Simplify uses of {set,clear}_ti_thread_flag() Dave Martin
2017-10-11 14:19 ` [PATCH v3 05/28] arm64: fpsimd: Simplify uses of {set, clear}_ti_thread_flag() Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 02/28] arm64: KVM: Hide unsupported AArch64 CPU features from guests Dave Martin
2017-10-11 14:14 ` Catalin Marinas
2017-10-11 16:21 ` Marc Zyngier
2017-10-17 13:51 ` Christoffer Dall
2017-10-17 14:08 ` Marc Zyngier
2017-10-18 13:20 ` Christoffer Dall
2017-10-18 14:45 ` Dave Martin
2017-10-18 19:19 ` Christoffer Dall
2017-10-10 18:39 ` [PATCH v3 10/28] arm64/sve: Low-level CPU setup Dave Martin
2017-10-11 14:30 ` Catalin Marinas
2017-10-10 18:39 ` [PATCH v3 06/28] arm64/sve: System register and exception syndrome definitions Dave Martin
2017-10-11 14:20 ` Catalin Marinas
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1507660725-7986-4-git-send-email-Dave.Martin@arm.com \
--to=dave.martin@arm.com \
--cc=alex.bennee@linaro.org \
--cc=ard.biesheuvel@linaro.org \
--cc=catalin.marinas@arm.com \
--cc=kvmarm@lists.cs.columbia.edu \
--cc=libc-alpha@sourceware.org \
--cc=linux-arch@vger.kernel.org \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=richard.sandiford@arm.com \
--cc=szabolcs.nagy@arm.com \
--cc=tokamoto@jp.fujitsu.com \
--cc=will.deacon@arm.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).