From: Jisheng Zhang <jszhang@kernel.org>
To: Palmer Dabbelt <palmer@dabbelt.com>,
Paul Walmsley <paul.walmsley@sifive.com>,
Albert Ou <aou@eecs.berkeley.edu>,
Anup Patel <anup@brainfault.org>,
Atish Patra <atishp@atishpatra.org>,
Heiko Stuebner <heiko@sntech.de>,
Andrew Jones <ajones@ventanamicro.com>
Cc: linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org,
kvm@vger.kernel.org, kvm-riscv@lists.infradead.org
Subject: [PATCH v2 11/13] riscv: cpu_relax: switch to riscv_has_extension_likely()
Date: Mon, 5 Dec 2022 01:46:30 +0800 [thread overview]
Message-ID: <20221204174632.3677-12-jszhang@kernel.org> (raw)
In-Reply-To: <20221204174632.3677-1-jszhang@kernel.org>
Switch cpu_relax() from statich branch to the new helper
riscv_has_extension_likely()
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Heiko Stuebner <heiko@sntech.de>
---
arch/riscv/include/asm/vdso/processor.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/riscv/include/asm/vdso/processor.h b/arch/riscv/include/asm/vdso/processor.h
index fa70cfe507aa..edf0e25e43d1 100644
--- a/arch/riscv/include/asm/vdso/processor.h
+++ b/arch/riscv/include/asm/vdso/processor.h
@@ -10,7 +10,7 @@
static inline void cpu_relax(void)
{
- if (!static_branch_likely(&riscv_isa_ext_keys[RISCV_ISA_EXT_KEY_ZIHINTPAUSE])) {
+ if (!riscv_has_extension_likely(RISCV_ISA_EXT_ZIHINTPAUSE)) {
#ifdef __riscv_muldiv
int dummy;
/* In lieu of a halt instruction, induce a long-latency stall. */
--
2.37.2
_______________________________________________
linux-riscv mailing list
linux-riscv@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-riscv
next prev parent reply other threads:[~2022-12-04 18:00 UTC|newest]
Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-04 17:46 [PATCH v2 00/13] riscv: improve boot time isa extensions handling Jisheng Zhang
2022-12-04 17:46 ` [PATCH v2 01/13] riscv: fix jal offsets in patched alternatives Jisheng Zhang
2022-12-05 14:57 ` Andrew Jones
2022-12-05 15:34 ` Jisheng Zhang
2022-12-05 16:42 ` Jisheng Zhang
2022-12-05 16:49 ` Jisheng Zhang
2022-12-06 5:50 ` Andrew Jones
2022-12-05 15:31 ` Heiko Stübner
2022-12-05 15:40 ` Jisheng Zhang
2022-12-05 18:36 ` Conor Dooley
2022-12-05 18:49 ` Heiko Stübner
2022-12-05 19:49 ` Conor Dooley
2022-12-06 0:39 ` Heiko Stübner
2022-12-06 15:02 ` Jisheng Zhang
2022-12-06 16:12 ` Conor Dooley
2022-12-19 21:32 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 02/13] riscv: move riscv_noncoherent_supported() out of ZICBOM probe Jisheng Zhang
2022-12-04 21:52 ` Heiko Stübner
2022-12-05 15:16 ` Jisheng Zhang
2022-12-05 15:31 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 03/13] riscv: cpufeature: detect RISCV_ALTERNATIVES_EARLY_BOOT earlier Jisheng Zhang
2022-12-05 19:09 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 04/13] riscv: hwcap: make ISA extension ids can be used in asm Jisheng Zhang
2022-12-05 18:53 ` Conor Dooley
2022-12-22 22:58 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 05/13] riscv: cpufeature: extend riscv_cpufeature_patch_func to all ISA extensions Jisheng Zhang
2022-12-05 19:37 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 06/13] riscv: introduce riscv_has_extension_[un]likely() Jisheng Zhang
2022-12-06 20:25 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 07/13] riscv: fpu: switch has_fpu() to riscv_has_extension_likely() Jisheng Zhang
2022-12-04 17:46 ` [PATCH v2 08/13] riscv: module: move find_section to module.h Jisheng Zhang
2022-12-05 15:25 ` Andrew Jones
2022-12-06 20:44 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 09/13] riscv: switch to relative alternative entries Jisheng Zhang
2022-12-05 0:51 ` Guo Ren
2022-12-05 15:18 ` Jisheng Zhang
2022-12-06 4:34 ` Guo Ren
2022-12-06 14:50 ` Jisheng Zhang
2022-12-06 21:43 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 10/13] riscv: alternative: patch alternatives in the vDSO Jisheng Zhang
2022-12-05 1:56 ` Guo Ren
2022-12-05 15:23 ` Jisheng Zhang
2022-12-06 4:29 ` Guo Ren
2023-01-11 14:12 ` Andrew Jones
2022-12-04 17:46 ` Jisheng Zhang [this message]
2022-12-05 0:52 ` [PATCH v2 11/13] riscv: cpu_relax: switch to riscv_has_extension_likely() Guo Ren
2022-12-06 22:04 ` Conor Dooley
2022-12-04 17:46 ` [PATCH v2 12/13] riscv: KVM: Switch has_svinval() to riscv_has_extension_unlikely() Jisheng Zhang
2022-12-05 0:52 ` Guo Ren
2022-12-04 17:46 ` [PATCH v2 13/13] riscv: remove riscv_isa_ext_keys[] array and related usage Jisheng Zhang
2022-12-05 0:53 ` Guo Ren
2022-12-06 22:16 ` Conor Dooley
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=20221204174632.3677-12-jszhang@kernel.org \
--to=jszhang@kernel.org \
--cc=ajones@ventanamicro.com \
--cc=anup@brainfault.org \
--cc=aou@eecs.berkeley.edu \
--cc=atishp@atishpatra.org \
--cc=heiko@sntech.de \
--cc=kvm-riscv@lists.infradead.org \
--cc=kvm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-riscv@lists.infradead.org \
--cc=palmer@dabbelt.com \
--cc=paul.walmsley@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).