From: Greentime Hu <greentime.hu@sifive.com>
To: greentime.hu@sifive.com, guoren@linux.alibaba.com,
vincent.chen@sifive.com, paul.walmsley@sifive.com,
palmerdabbelt@google.com, linux-riscv@lists.infradead.org,
linux-kernel@vger.kernel.org, oleg@redhat.com
Subject: [RFC PATCH v5 06/13] riscv: Add vector feature to compile
Date: Thu, 28 May 2020 14:40:54 +0800 [thread overview]
Message-ID: <ff4f02ebc92bef0b85769cea014e3bee42e7cd04.1590646208.git.greentime.hu@sifive.com> (raw)
In-Reply-To: <cover.1590646208.git.greentime.hu@sifive.com>
From: Guo Ren <guoren@linux.alibaba.com>
This patch adds a new config option which could enable assembler's
vector feature.
Signed-off-by: Guo Ren <guoren@linux.alibaba.com>
---
arch/riscv/Kconfig | 9 +++++++++
arch/riscv/Makefile | 1 +
2 files changed, 10 insertions(+)
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
index 74f82cf4f781..3b742d949a09 100644
--- a/arch/riscv/Kconfig
+++ b/arch/riscv/Kconfig
@@ -305,6 +305,15 @@ config FPU
If you don't know what to do here, say Y.
+config VECTOR
+ bool "VECTOR support"
+ default n
+ help
+ Say N here if you want to disable all vector related procedure
+ in the kernel.
+
+ If you don't know what to do here, say Y.
+
endmenu
menu "Kernel features"
diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile
index 957d064bead0..7c80c95582e3 100644
--- a/arch/riscv/Makefile
+++ b/arch/riscv/Makefile
@@ -46,6 +46,7 @@ riscv-march-aflags-$(CONFIG_ARCH_RV32I) := rv32ima
riscv-march-aflags-$(CONFIG_ARCH_RV64I) := rv64ima
riscv-march-aflags-$(CONFIG_FPU) := $(riscv-march-aflags-y)fd
riscv-march-aflags-$(CONFIG_RISCV_ISA_C) := $(riscv-march-aflags-y)c
+riscv-march-aflags-$(CONFIG_VECTOR) := $(riscv-march-aflags-y)v
KBUILD_CFLAGS += -march=$(riscv-march-cflags-y)
KBUILD_AFLAGS += -march=$(riscv-march-aflags-y)
--
2.26.2
next prev parent reply other threads:[~2020-05-28 6:41 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-28 6:40 [RFC PATCH v5 00/13] riscv: Add vector ISA support Greentime Hu
2020-05-28 6:40 ` [RFC PATCH v5 01/13] ptrace: Use regset_size() for dynamic regset Greentime Hu
2020-05-28 12:36 ` Oleg Nesterov
2020-05-28 6:40 ` [RFC PATCH v5 02/13] riscv: Separate patch for cflags and aflags Greentime Hu
2020-05-28 6:40 ` [RFC PATCH v5 03/13] riscv: Rename __switch_to_aux -> fpu Greentime Hu
2020-05-28 6:40 ` [RFC PATCH v5 04/13] riscv: Extending cpufeature.c to detect V-extension Greentime Hu
2020-05-28 6:40 ` [RFC PATCH v5 05/13] riscv: Add new csr defines related to vector extension Greentime Hu
2020-05-28 6:40 ` Greentime Hu [this message]
2020-05-28 6:40 ` [RFC PATCH v5 07/13] riscv: Add has_vector/riscv_vsize to save vector features Greentime Hu
2020-05-28 6:40 ` [RFC PATCH v5 08/13] riscv: Reset vector register Greentime Hu
2020-05-28 6:40 ` [RFC PATCH v5 09/13] riscv: Add vector struct and assembler definitions Greentime Hu
2020-05-28 6:40 ` [RFC PATCH v5 10/13] riscv: Add task switch support for vector Greentime Hu
2020-05-28 6:40 ` [RFC PATCH v5 11/13] riscv: Add ptrace vector support Greentime Hu
2020-05-28 6:41 ` [RFC PATCH v5 12/13] riscv: Add sigcontext save/restore for vector Greentime Hu
2020-05-28 6:41 ` [RFC PATCH v5 13/13] riscv: signal: Report signal frame size to userspace via auxv Greentime Hu
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=ff4f02ebc92bef0b85769cea014e3bee42e7cd04.1590646208.git.greentime.hu@sifive.com \
--to=greentime.hu@sifive.com \
--cc=guoren@linux.alibaba.com \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=oleg@redhat.com \
--cc=palmerdabbelt@google.com \
--cc=paul.walmsley@sifive.com \
--cc=vincent.chen@sifive.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 NNTP newsgroup(s).