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Message-ID: <20211118192629.0a9dc6ad@xhacker>
Date: Thu, 18 Nov 2021 19:26:29 +0800
From: Jisheng Zhang <jszhang3@...l.ustc.edu.cn>
To: Paul Walmsley <paul.walmsley@...ive.com>,
Palmer Dabbelt <palmer@...belt.com>,
Albert Ou <aou@...s.berkeley.edu>,
"Björn Töpel" <bjorn@...nel.org>,
Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>,
Andrii Nakryiko <andrii@...nel.org>,
Martin KaFai Lau <kafai@...com>,
Song Liu <songliubraving@...com>, Yonghong Song <yhs@...com>,
John Fastabend <john.fastabend@...il.com>,
KP Singh <kpsingh@...nel.org>,
Masahiro Yamada <masahiroy@...nel.org>,
Michal Marek <michal.lkml@...kovi.net>,
Nick Desaulniers <ndesaulniers@...gle.com>
Cc: Kefeng Wang <wangkefeng.wang@...wei.com>,
Tong Tiangen <tongtiangen@...wei.com>,
linux-riscv@...ts.infradead.org, linux-kernel@...r.kernel.org,
netdev@...r.kernel.org, bpf@...r.kernel.org,
linux-kbuild@...r.kernel.org
Subject: [PATCH 10/12] riscv: add gpr-num.h
From: Jisheng Zhang <jszhang@...nel.org>
Next patch will use the gpr-num to pass the register number to exception
fixup handler which sits in inline assembly routines.
Signed-off-by: Jisheng Zhang <jszhang@...nel.org>
---
arch/riscv/include/asm/gpr-num.h | 77 ++++++++++++++++++++++++++++++++
1 file changed, 77 insertions(+)
create mode 100644 arch/riscv/include/asm/gpr-num.h
diff --git a/arch/riscv/include/asm/gpr-num.h b/arch/riscv/include/asm/gpr-num.h
new file mode 100644
index 000000000000..dfee2829fc7c
--- /dev/null
+++ b/arch/riscv/include/asm/gpr-num.h
@@ -0,0 +1,77 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef __ASM_GPR_NUM_H
+#define __ASM_GPR_NUM_H
+
+#ifdef __ASSEMBLY__
+ .equ .L__gpr_num_zero, 0
+ .equ .L__gpr_num_ra, 1
+ .equ .L__gpr_num_sp, 2
+ .equ .L__gpr_num_gp, 3
+ .equ .L__gpr_num_tp, 4
+ .equ .L__gpr_num_t0, 5
+ .equ .L__gpr_num_t1, 6
+ .equ .L__gpr_num_t2, 7
+ .equ .L__gpr_num_s0, 8
+ .equ .L__gpr_num_s1, 9
+ .equ .L__gpr_num_a0, 10
+ .equ .L__gpr_num_a1, 11
+ .equ .L__gpr_num_a2, 12
+ .equ .L__gpr_num_a3, 13
+ .equ .L__gpr_num_a4, 14
+ .equ .L__gpr_num_a5, 15
+ .equ .L__gpr_num_a6, 16
+ .equ .L__gpr_num_a7, 17
+ .equ .L__gpr_num_s2, 18
+ .equ .L__gpr_num_s3, 19
+ .equ .L__gpr_num_s4, 20
+ .equ .L__gpr_num_s5, 21
+ .equ .L__gpr_num_s6, 22
+ .equ .L__gpr_num_s7, 23
+ .equ .L__gpr_num_s8, 24
+ .equ .L__gpr_num_s9, 25
+ .equ .L__gpr_num_s10, 26
+ .equ .L__gpr_num_s11, 27
+ .equ .L__gpr_num_t3, 28
+ .equ .L__gpr_num_t4, 29
+ .equ .L__gpr_num_t5, 30
+ .equ .L__gpr_num_t6, 31
+
+#else /* __ASSEMBLY__ */
+
+#define __DEFINE_ASM_GPR_NUMS \
+" .equ .L__gpr_num_zero, 0\n" \
+" .equ .L__gpr_num_ra, 1\n" \
+" .equ .L__gpr_num_sp, 2\n" \
+" .equ .L__gpr_num_gp, 3\n" \
+" .equ .L__gpr_num_tp, 4\n" \
+" .equ .L__gpr_num_t0, 5\n" \
+" .equ .L__gpr_num_t1, 6\n" \
+" .equ .L__gpr_num_t2, 7\n" \
+" .equ .L__gpr_num_s0, 8\n" \
+" .equ .L__gpr_num_s1, 9\n" \
+" .equ .L__gpr_num_a0, 10\n" \
+" .equ .L__gpr_num_a1, 11\n" \
+" .equ .L__gpr_num_a2, 12\n" \
+" .equ .L__gpr_num_a3, 13\n" \
+" .equ .L__gpr_num_a4, 14\n" \
+" .equ .L__gpr_num_a5, 15\n" \
+" .equ .L__gpr_num_a6, 16\n" \
+" .equ .L__gpr_num_a7, 17\n" \
+" .equ .L__gpr_num_s2, 18\n" \
+" .equ .L__gpr_num_s3, 19\n" \
+" .equ .L__gpr_num_s4, 20\n" \
+" .equ .L__gpr_num_s5, 21\n" \
+" .equ .L__gpr_num_s6, 22\n" \
+" .equ .L__gpr_num_s7, 23\n" \
+" .equ .L__gpr_num_s8, 24\n" \
+" .equ .L__gpr_num_s9, 25\n" \
+" .equ .L__gpr_num_s10, 26\n" \
+" .equ .L__gpr_num_s11, 27\n" \
+" .equ .L__gpr_num_t3, 28\n" \
+" .equ .L__gpr_num_t4, 29\n" \
+" .equ .L__gpr_num_t5, 30\n" \
+" .equ .L__gpr_num_t6, 31\n"
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* __ASM_GPR_NUM_H */
--
2.33.0
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