From: Julien Thierry <jthierry@redhat.com>
To: linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org
Cc: mark.rutland@arm.com, catalin.marinas@arm.com,
broonie@kernel.org, will@kernel.org,
Julien Thierry <jthierry@redhat.com>
Subject: [RFC PATCH 3/5] arm64: aarch64-insn: Add barrier encodings
Date: Wed, 20 Jan 2021 18:17:43 +0100 [thread overview]
Message-ID: <20210120171745.1657762-4-jthierry@redhat.com> (raw)
In-Reply-To: <20210120171745.1657762-1-jthierry@redhat.com>
Create necessary functions to encode/decode aarch64 data/instruction
barriers.
Signed-off-by: Julien Thierry <jthierry@redhat.com>
---
arch/arm64/include/asm/aarch64-insn.h | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/arch/arm64/include/asm/aarch64-insn.h b/arch/arm64/include/asm/aarch64-insn.h
index 200bee726172..d0fee47bbe6e 100644
--- a/arch/arm64/include/asm/aarch64-insn.h
+++ b/arch/arm64/include/asm/aarch64-insn.h
@@ -379,6 +379,9 @@ __AARCH64_INSN_FUNCS(eret_auth, 0xFFFFFBFF, 0xD69F0BFF)
__AARCH64_INSN_FUNCS(mrs, 0xFFF00000, 0xD5300000)
__AARCH64_INSN_FUNCS(msr_imm, 0xFFF8F01F, 0xD500401F)
__AARCH64_INSN_FUNCS(msr_reg, 0xFFF00000, 0xD5100000)
+__AARCH64_INSN_FUNCS(dmb, 0xFFFFF0FF, 0xD50330BF)
+__AARCH64_INSN_FUNCS(dsb, 0xFFFFF0FF, 0xD503309F)
+__AARCH64_INSN_FUNCS(isb, 0xFFFFF0FF, 0xD50330DF)
#undef __AARCH64_INSN_FUNCS
@@ -390,6 +393,12 @@ static inline bool aarch64_insn_is_adr_adrp(u32 insn)
return aarch64_insn_is_adr(insn) || aarch64_insn_is_adrp(insn);
}
+static inline bool aarch64_insn_is_barrier(u32 insn)
+{
+ return aarch64_insn_is_dmb(insn) || aarch64_insn_is_dsb(insn) ||
+ aarch64_insn_is_isb(insn);
+}
+
enum aarch64_insn_encoding_class aarch64_get_insn_class(u32 insn);
bool aarch64_insn_uses_literal(u32 insn);
bool aarch64_insn_is_branch(u32 insn);
--
2.25.4
_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2021-01-20 17:19 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-20 17:17 [RFC PATCH 0/5] arm64: Prepare instruction decoder for objtool Julien Thierry
2021-01-20 17:17 ` [RFC PATCH 2/5] arm64: aarch64-insn: Add SVE instruction class Julien Thierry
2021-01-20 17:17 ` Julien Thierry [this message]
2021-02-02 11:15 ` [RFC PATCH 3/5] arm64: aarch64-insn: Add barrier encodings Mark Rutland
2021-02-03 8:47 ` Julien Thierry
2021-01-20 17:17 ` [RFC PATCH 4/5] arm64: aarch64-insn: Add some opcodes to instruction decoder Julien Thierry
2021-01-20 17:17 ` [RFC PATCH 5/5] arm64: Add load/store decoding helpers Julien Thierry
[not found] ` <20210120171745.1657762-2-jthierry@redhat.com>
[not found] ` <20210202101755.GB59049@C02TD0UTHF1T.local>
2021-02-03 8:26 ` [RFC PATCH 1/5] arm64: Move instruction encoder/decoder under lib/ Julien Thierry
2021-02-03 11:12 ` Mark Rutland
2021-02-03 17:30 ` Julien Thierry
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=20210120171745.1657762-4-jthierry@redhat.com \
--to=jthierry@redhat.com \
--cc=broonie@kernel.org \
--cc=catalin.marinas@arm.com \
--cc=linux-arm-kernel@lists.infradead.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mark.rutland@arm.com \
--cc=will@kernel.org \
/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