Movatterモバイル変換

This is the mail archive of thelibc-alpha@sourceware.orgmailing list for theglibc project.

[PATCH v2 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON

• From: Dave Martin <Dave dot Martin at arm dot com>
• To: linux-arm-kernel at lists dot infradead dot org
• Cc: Catalin Marinas <catalin dot marinas at arm dot com>,Will Deacon <will dot deacon at arm dot com>,Ard Biesheuvel <ard dot biesheuvel at linaro dot org>,Alex Bennée <alex dot bennee at linaro dot org>,Szabolcs Nagy <szabolcs dot nagy at arm dot com>,Richard Sandiford <richard dot sandiford at arm dot com>,kvmarm at lists dot cs dot columbia dot edu,libc-alpha at sourceware dot org,linux-arch at vger dot kernel dot org
• Date: Thu, 31 Aug 2017 18:00:35 +0100
• Subject: [PATCH v2 03/28] arm64: efi: Add missing Kconfig dependency on KERNEL_MODE_NEON
• Authentication-results: sourceware.org; auth=none
• References: <1504198860-12951-1-git-send-email-Dave.Martin@arm.com>

The EFI runtime services ABI permits calls to EFI to clobbercertain FPSIMD/NEON registers, as per the AArch64 procedure callstandard.Saving/restoring the clobbered registers around such calls needsKERNEL_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 theARM 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/Kconfigindex 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

• References:
  • [PATCH v2 00/28] ARM Scalable Vector Extension (SVE)
    • From: Dave Martin