linux-kernel - [RFC PATCH 5/5] arm64: Add load/store decoding helpers

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Date:   Wed, 20 Jan 2021 18:17:45 +0100
From:   Julien Thierry <jthierry@...hat.com>
To:     linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Cc:     catalin.marinas@....com, will@...nel.org, mark.rutland@....com,
        broonie@...nel.org, Julien Thierry <jthierry@...hat.com>
Subject: [RFC PATCH 5/5] arm64: Add load/store decoding helpers

Provide some function to group different load/store instructions.

Signed-off-by: Julien Thierry <jthierry@...hat.com>
---
 arch/arm64/include/asm/aarch64-insn.h | 28 +++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/arch/arm64/include/asm/aarch64-insn.h b/arch/arm64/include/asm/aarch64-insn.h
index 3a0e0ad51f5b..f1b5b652c400 100644
--- a/arch/arm64/include/asm/aarch64-insn.h
+++ b/arch/arm64/include/asm/aarch64-insn.h
@@ -408,6 +408,34 @@ static inline bool aarch64_insn_is_barrier(u32 insn)
 	       aarch64_insn_is_isb(insn);
 }
 
+static inline bool aarch64_insn_is_store_single(u32 insn)
+{
+	return aarch64_insn_is_store_imm(insn) ||
+	       aarch64_insn_is_store_pre(insn) ||
+	       aarch64_insn_is_store_post(insn);
+}
+
+static inline bool aarch64_insn_is_store_pair(u32 insn)
+{
+	return aarch64_insn_is_stp(insn) ||
+	       aarch64_insn_is_stp_pre(insn) ||
+	       aarch64_insn_is_stp_post(insn);
+}
+
+static inline bool aarch64_insn_is_load_single(u32 insn)
+{
+	return aarch64_insn_is_load_imm(insn) ||
+	       aarch64_insn_is_load_pre(insn) ||
+	       aarch64_insn_is_load_post(insn);
+}
+
+static inline bool aarch64_insn_is_load_pair(u32 insn)
+{
+	return aarch64_insn_is_ldp(insn) ||
+	       aarch64_insn_is_ldp_pre(insn) ||
+	       aarch64_insn_is_ldp_post(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