From: Heiko Stuebner <heiko@sntech.de>
To: linux-riscv@lists.infradead.org, palmer@dabbelt.com
Cc: christoph.muellner@vrull.eu, prabhakar.csengg@gmail.com,
conor@kernel.org, philipp.tomsich@vrull.eu,
ajones@ventanamicro.com, heiko@sntech.de,
emil.renner.berthing@canonical.com,
Heiko Stuebner <heiko.stuebner@vrull.eu>
Subject: [PATCH v2 03/13] RISC-V: add ebreak instructions to definitions
Date: Mon, 28 Nov 2022 11:26:22 +0100 [thread overview]
Message-ID: <20221128102632.435174-4-heiko@sntech.de> (raw)
In-Reply-To: <20221128102632.435174-1-heiko@sntech.de>
From: Heiko Stuebner <heiko.stuebner@vrull.eu>
kprobes need to match ebreaks instructions, so add the necessary
data to enable us to centralize that functionality.
Signed-off-by: Heiko Stuebner <heiko.stuebner@vrull.eu>
---
arch/riscv/include/asm/parse_asm.h | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/arch/riscv/include/asm/parse_asm.h b/arch/riscv/include/asm/parse_asm.h
index e3f87da108f4..e8303250f598 100644
--- a/arch/riscv/include/asm/parse_asm.h
+++ b/arch/riscv/include/asm/parse_asm.h
@@ -144,7 +144,9 @@
#define RVC_FUNCT3_C_JAL 0x1
#define RVC_FUNCT4_C_JR 0x8
#define RVC_FUNCT4_C_JALR 0x9
+#define RVC_FUNCT4_C_EBREAK 0x9
+#define RVG_FUNCT12_EBREAK 0x1
#define RVG_FUNCT12_SRET 0x102
#define RVG_MATCH_JALR (RV_ENCODE_FUNCT3(JALR) | RVG_OPCODE_JALR)
@@ -155,6 +157,7 @@
#define RVG_MATCH_BGE (RV_ENCODE_FUNCT3(BGE) | RVG_OPCODE_BRANCH)
#define RVG_MATCH_BLTU (RV_ENCODE_FUNCT3(BLTU) | RVG_OPCODE_BRANCH)
#define RVG_MATCH_BGEU (RV_ENCODE_FUNCT3(BGEU) | RVG_OPCODE_BRANCH)
+#define RVG_MATCH_EBREAK (RV_ENCODE_FUNCT12(EBREAK) | RVG_OPCODE_SYSTEM)
#define RVG_MATCH_SRET (RV_ENCODE_FUNCT12(SRET) | RVG_OPCODE_SYSTEM)
#define RVC_MATCH_C_BEQZ (RVC_ENCODE_FUNCT3(C_BEQZ) | RVC_OPCODE_C1)
#define RVC_MATCH_C_BNEZ (RVC_ENCODE_FUNCT3(C_BNEZ) | RVC_OPCODE_C1)
@@ -162,6 +165,7 @@
#define RVC_MATCH_C_JAL (RVC_ENCODE_FUNCT3(C_JAL) | RVC_OPCODE_C1)
#define RVC_MATCH_C_JR (RVC_ENCODE_FUNCT4(C_JR) | RVC_OPCODE_C2)
#define RVC_MATCH_C_JALR (RVC_ENCODE_FUNCT4(C_JALR) | RVC_OPCODE_C2)
+#define RVC_MATCH_C_EBREAK (RVC_ENCODE_FUNCT4(C_EBREAK) | RVC_OPCODE_C2)
#define RVG_MASK_JALR (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
#define RVG_MASK_JAL (RV_INSN_OPCODE_MASK)
@@ -177,6 +181,8 @@
#define RVG_MASK_BGEU (RV_INSN_FUNCT3_MASK | RV_INSN_OPCODE_MASK)
#define RVC_MASK_C_BEQZ (RVC_INSN_FUNCT3_MASK | RVC_INSN_OPCODE_MASK)
#define RVC_MASK_C_BNEZ (RVC_INSN_FUNCT3_MASK | RVC_INSN_OPCODE_MASK)
+#define RVC_MASK_C_EBREAK 0xffff
+#define RVG_MASK_EBREAK 0xffffffff
#define RVG_MASK_SRET 0xffffffff
#define __INSN_LENGTH_MASK _UL(0x3)
--
2.35.1
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next prev parent reply other threads:[~2022-11-28 10:26 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-11-28 10:26 [PATCH v2 0/13] Zbb string optimizations and call support in alternatives Heiko Stuebner
2022-11-28 10:26 ` [PATCH v2 01/13] RISC-V: add prefix to all constants/macros in parse_asm.h Heiko Stuebner
2022-11-29 22:19 ` Conor Dooley
2022-11-30 12:12 ` Heiko Stübner
2022-11-30 14:10 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 02/13] RISC-V: detach funct-values from their offset Heiko Stuebner
2022-11-29 22:47 ` Conor Dooley
2022-11-29 23:01 ` Conor Dooley
2022-11-30 14:04 ` Heiko Stübner
2022-11-30 14:16 ` Andrew Jones
2022-11-30 14:19 ` Heiko Stübner
2022-11-30 14:51 ` Andrew Jones
2022-11-28 10:26 ` Heiko Stuebner [this message]
2022-11-29 22:56 ` [PATCH v2 03/13] RISC-V: add ebreak instructions to definitions Conor Dooley
2022-11-30 15:08 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 04/13] RISC-V: Move riscv_insn_is_* macros into a common header Heiko Stuebner
2022-11-29 23:09 ` Conor Dooley
2022-11-29 23:14 ` Conor Dooley
2022-11-30 14:53 ` Heiko Stübner
2022-11-30 15:44 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 05/13] RISC-V: rename parse_asm.h to insn.h Heiko Stuebner
2022-11-29 23:13 ` Conor Dooley
2022-11-30 15:47 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 06/13] RISC-V: kprobes: use central defined funct3 constants Heiko Stuebner
2022-11-29 23:22 ` Conor Dooley
2022-11-30 19:18 ` Heiko Stübner
2022-11-30 15:51 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 07/13] RISC-V: add auipc elements to parse_asm header Heiko Stuebner
2022-11-29 23:36 ` Conor Dooley
2022-11-30 14:43 ` Heiko Stübner
2022-11-30 15:56 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 08/13] RISC-V: add U-type imm parsing " Heiko Stuebner
2022-11-29 23:38 ` Conor Dooley
2022-11-30 19:27 ` Heiko Stübner
2022-11-30 19:41 ` Conor Dooley
2022-11-30 16:02 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 09/13] RISC-V: add rd reg " Heiko Stuebner
2022-11-29 23:41 ` Conor Dooley
2022-11-30 16:12 ` Andrew Jones
2022-11-28 10:26 ` [PATCH v2 10/13] RISC-V: fix auipc-jalr addresses in patched alternatives Heiko Stuebner
2022-11-30 16:37 ` Conor Dooley
2022-11-28 10:26 ` [PATCH v2 11/13] efi/riscv: libstub: mark when compiling libstub Heiko Stuebner
2022-11-28 10:26 ` [PATCH v2 12/13] RISC-V: add infrastructure to allow different str* implementations Heiko Stuebner
2022-11-28 10:26 ` [PATCH v2 13/13] RISC-V: add zbb support to string functions Heiko Stuebner
2022-11-30 16:53 ` Conor Dooley
2022-11-30 17:14 ` Conor Dooley
2022-11-30 21:28 ` Heiko Stübner
2022-11-29 22:02 ` [PATCH v2 0/13] Zbb string optimizations and call support in alternatives Conor Dooley
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