* [PATCH v4 01/30] elf: Add machine type value for LoongArch
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 02/30] MAINTAINERS: Add tcg/loongarch64 entry with myself as maintainer WANG Xuerui
` (28 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
This is already officially allocated as recorded in GNU binutils
repo [1], and the description is updated in [2]. Add to enable further
work.
[1]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=4cf2ad720078a9f490dd5b5bc8893a926479196e
[2]: https://sourceware.org/git/?p=binutils-gdb.git;a=commit;h=01a8c731aacbdbed0eb5682d13cc074dc7e25fb3
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
include/elf.h | 2 ++
1 file changed, 2 insertions(+)
diff --git a/include/elf.h b/include/elf.h
index 811bf4a1cb..3a4bcb646a 100644
--- a/include/elf.h
+++ b/include/elf.h
@@ -182,6 +182,8 @@ typedef struct mips_elf_abiflags_v0 {
#define EM_NANOMIPS 249 /* Wave Computing nanoMIPS */
+#define EM_LOONGARCH 258 /* LoongArch */
+
/*
* This is an interim value that we will use until the committee comes
* up with a final number.
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 02/30] MAINTAINERS: Add tcg/loongarch64 entry with myself as maintainer
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 01/30] elf: Add machine type value for LoongArch WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 17:53 ` Philippe Mathieu-Daudé
2021-09-23 16:59 ` [PATCH v4 03/30] tcg/loongarch64: Add the tcg-target.h file WANG Xuerui
` (27 subsequent siblings)
29 siblings, 1 reply; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
I ported the initial code, so I should maintain it of course.
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
MAINTAINERS | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/MAINTAINERS b/MAINTAINERS
index d7915ec128..859e5b5ba2 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -3114,6 +3114,11 @@ S: Maintained
F: tcg/i386/
F: disas/i386.c
+LoongArch64 TCG target
+M: WANG Xuerui <git@xen0n.name>
+S: Maintained
+F: tcg/loongarch64/
+
MIPS TCG target
M: Philippe Mathieu-Daudé <f4bug@amsat.org>
R: Aurelien Jarno <aurelien@aurel32.net>
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 03/30] tcg/loongarch64: Add the tcg-target.h file
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 01/30] elf: Add machine type value for LoongArch WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 02/30] MAINTAINERS: Add tcg/loongarch64 entry with myself as maintainer WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 04/30] tcg/loongarch64: Add generated instruction opcodes and encoding helpers WANG Xuerui
` (26 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Support for all optional TCG ops are initially marked disabled; the bits
are to be set in individual commits later.
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
---
tcg/loongarch64/tcg-target.h | 180 +++++++++++++++++++++++++++++++++++
1 file changed, 180 insertions(+)
create mode 100644 tcg/loongarch64/tcg-target.h
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
new file mode 100644
index 0000000000..5fc097b3c1
--- /dev/null
+++ b/tcg/loongarch64/tcg-target.h
@@ -0,0 +1,180 @@
+/*
+ * Tiny Code Generator for QEMU
+ *
+ * Copyright (c) 2021 WANG Xuerui <git@xen0n.name>
+ *
+ * Based on tcg/riscv/tcg-target.h
+ *
+ * Copyright (c) 2018 SiFive, Inc
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifndef LOONGARCH_TCG_TARGET_H
+#define LOONGARCH_TCG_TARGET_H
+
+/*
+ * Loongson removed the (incomplete) 32-bit support from kernel and toolchain
+ * for the initial upstreaming of this architecture, so don't bother and just
+ * support the LP64 ABI for now.
+ */
+#if defined(__loongarch64)
+# define TCG_TARGET_REG_BITS 64
+#else
+# error unsupported LoongArch register size
+#endif
+
+#define TCG_TARGET_INSN_UNIT_SIZE 4
+#define TCG_TARGET_NB_REGS 32
+#define MAX_CODE_GEN_BUFFER_SIZE SIZE_MAX
+
+typedef enum {
+ TCG_REG_ZERO,
+ TCG_REG_RA,
+ TCG_REG_TP,
+ TCG_REG_SP,
+ TCG_REG_A0,
+ TCG_REG_A1,
+ TCG_REG_A2,
+ TCG_REG_A3,
+ TCG_REG_A4,
+ TCG_REG_A5,
+ TCG_REG_A6,
+ TCG_REG_A7,
+ TCG_REG_T0,
+ TCG_REG_T1,
+ TCG_REG_T2,
+ TCG_REG_T3,
+ TCG_REG_T4,
+ TCG_REG_T5,
+ TCG_REG_T6,
+ TCG_REG_T7,
+ TCG_REG_T8,
+ TCG_REG_RESERVED,
+ TCG_REG_S9,
+ TCG_REG_S0,
+ TCG_REG_S1,
+ TCG_REG_S2,
+ TCG_REG_S3,
+ TCG_REG_S4,
+ TCG_REG_S5,
+ TCG_REG_S6,
+ TCG_REG_S7,
+ TCG_REG_S8,
+
+ /* aliases */
+ TCG_AREG0 = TCG_REG_S0,
+ TCG_REG_TMP0 = TCG_REG_T8,
+ TCG_REG_TMP1 = TCG_REG_T7,
+ TCG_REG_TMP2 = TCG_REG_T6,
+} TCGReg;
+
+/* used for function call generation */
+#define TCG_REG_CALL_STACK TCG_REG_SP
+#define TCG_TARGET_STACK_ALIGN 16
+#define TCG_TARGET_CALL_ALIGN_ARGS 1
+#define TCG_TARGET_CALL_STACK_OFFSET 0
+
+/* optional instructions */
+#define TCG_TARGET_HAS_movcond_i32 0
+#define TCG_TARGET_HAS_div_i32 0
+#define TCG_TARGET_HAS_rem_i32 0
+#define TCG_TARGET_HAS_div2_i32 0
+#define TCG_TARGET_HAS_rot_i32 0
+#define TCG_TARGET_HAS_deposit_i32 0
+#define TCG_TARGET_HAS_extract_i32 0
+#define TCG_TARGET_HAS_sextract_i32 0
+#define TCG_TARGET_HAS_extract2_i32 0
+#define TCG_TARGET_HAS_add2_i32 0
+#define TCG_TARGET_HAS_sub2_i32 0
+#define TCG_TARGET_HAS_mulu2_i32 0
+#define TCG_TARGET_HAS_muls2_i32 0
+#define TCG_TARGET_HAS_muluh_i32 0
+#define TCG_TARGET_HAS_mulsh_i32 0
+#define TCG_TARGET_HAS_ext8s_i32 0
+#define TCG_TARGET_HAS_ext16s_i32 0
+#define TCG_TARGET_HAS_ext8u_i32 0
+#define TCG_TARGET_HAS_ext16u_i32 0
+#define TCG_TARGET_HAS_bswap16_i32 0
+#define TCG_TARGET_HAS_bswap32_i32 0
+#define TCG_TARGET_HAS_not_i32 0
+#define TCG_TARGET_HAS_neg_i32 0
+#define TCG_TARGET_HAS_andc_i32 0
+#define TCG_TARGET_HAS_orc_i32 0
+#define TCG_TARGET_HAS_eqv_i32 0
+#define TCG_TARGET_HAS_nand_i32 0
+#define TCG_TARGET_HAS_nor_i32 0
+#define TCG_TARGET_HAS_clz_i32 0
+#define TCG_TARGET_HAS_ctz_i32 0
+#define TCG_TARGET_HAS_ctpop_i32 0
+#define TCG_TARGET_HAS_direct_jump 0
+#define TCG_TARGET_HAS_brcond2 0
+#define TCG_TARGET_HAS_setcond2 0
+#define TCG_TARGET_HAS_qemu_st8_i32 0
+
+/* 64-bit operations */
+#define TCG_TARGET_HAS_movcond_i64 0
+#define TCG_TARGET_HAS_div_i64 0
+#define TCG_TARGET_HAS_rem_i64 0
+#define TCG_TARGET_HAS_div2_i64 0
+#define TCG_TARGET_HAS_rot_i64 0
+#define TCG_TARGET_HAS_deposit_i64 0
+#define TCG_TARGET_HAS_extract_i64 0
+#define TCG_TARGET_HAS_sextract_i64 0
+#define TCG_TARGET_HAS_extract2_i64 0
+#define TCG_TARGET_HAS_extrl_i64_i32 0
+#define TCG_TARGET_HAS_extrh_i64_i32 0
+#define TCG_TARGET_HAS_ext8s_i64 0
+#define TCG_TARGET_HAS_ext16s_i64 0
+#define TCG_TARGET_HAS_ext32s_i64 0
+#define TCG_TARGET_HAS_ext8u_i64 0
+#define TCG_TARGET_HAS_ext16u_i64 0
+#define TCG_TARGET_HAS_ext32u_i64 0
+#define TCG_TARGET_HAS_bswap16_i64 0
+#define TCG_TARGET_HAS_bswap32_i64 0
+#define TCG_TARGET_HAS_bswap64_i64 0
+#define TCG_TARGET_HAS_not_i64 0
+#define TCG_TARGET_HAS_neg_i64 0
+#define TCG_TARGET_HAS_andc_i64 0
+#define TCG_TARGET_HAS_orc_i64 0
+#define TCG_TARGET_HAS_eqv_i64 0
+#define TCG_TARGET_HAS_nand_i64 0
+#define TCG_TARGET_HAS_nor_i64 0
+#define TCG_TARGET_HAS_clz_i64 0
+#define TCG_TARGET_HAS_ctz_i64 0
+#define TCG_TARGET_HAS_ctpop_i64 0
+#define TCG_TARGET_HAS_add2_i64 0
+#define TCG_TARGET_HAS_sub2_i64 0
+#define TCG_TARGET_HAS_mulu2_i64 0
+#define TCG_TARGET_HAS_muls2_i64 0
+#define TCG_TARGET_HAS_muluh_i64 0
+#define TCG_TARGET_HAS_mulsh_i64 0
+
+/* not defined -- call should be eliminated at compile time */
+void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t, uintptr_t);
+
+#define TCG_TARGET_DEFAULT_MO (0)
+
+#ifdef CONFIG_SOFTMMU
+#define TCG_TARGET_NEED_LDST_LABELS
+#endif
+
+#define TCG_TARGET_HAS_MEMORY_BSWAP 0
+
+#endif /* LOONGARCH_TCG_TARGET_H */
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 04/30] tcg/loongarch64: Add generated instruction opcodes and encoding helpers
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (2 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 03/30] tcg/loongarch64: Add the tcg-target.h file WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 05/30] tcg/loongarch64: Add register names, allocation order and input/output sets WANG Xuerui
` (25 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Acked-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-insn-defs.c.inc | 891 ++++++++++++++++++++++++++++
1 file changed, 891 insertions(+)
create mode 100644 tcg/loongarch64/tcg-insn-defs.c.inc
diff --git a/tcg/loongarch64/tcg-insn-defs.c.inc b/tcg/loongarch64/tcg-insn-defs.c.inc
new file mode 100644
index 0000000000..a12b0301b7
--- /dev/null
+++ b/tcg/loongarch64/tcg-insn-defs.c.inc
@@ -0,0 +1,891 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * LoongArch instruction formats, opcodes, and encoders for TCG use.
+ *
+ * This file is auto-generated by genqemutcgdefs from
+ * https://github.com/loongson-community/loongarch-opcodes,
+ * from commit ec4eec92c1ffcc33e604a9d77a9279aeaf57558b.
+ * DO NOT EDIT.
+ */
+
+typedef enum {
+ OPC_CLZ_W = 0x00001400,
+ OPC_CTZ_W = 0x00001c00,
+ OPC_CLZ_D = 0x00002400,
+ OPC_CTZ_D = 0x00002c00,
+ OPC_REVB_2H = 0x00003000,
+ OPC_REVB_2W = 0x00003800,
+ OPC_REVB_D = 0x00003c00,
+ OPC_SEXT_H = 0x00005800,
+ OPC_SEXT_B = 0x00005c00,
+ OPC_ADD_W = 0x00100000,
+ OPC_ADD_D = 0x00108000,
+ OPC_SUB_W = 0x00110000,
+ OPC_SUB_D = 0x00118000,
+ OPC_SLT = 0x00120000,
+ OPC_SLTU = 0x00128000,
+ OPC_MASKEQZ = 0x00130000,
+ OPC_MASKNEZ = 0x00138000,
+ OPC_NOR = 0x00140000,
+ OPC_AND = 0x00148000,
+ OPC_OR = 0x00150000,
+ OPC_XOR = 0x00158000,
+ OPC_ORN = 0x00160000,
+ OPC_ANDN = 0x00168000,
+ OPC_SLL_W = 0x00170000,
+ OPC_SRL_W = 0x00178000,
+ OPC_SRA_W = 0x00180000,
+ OPC_SLL_D = 0x00188000,
+ OPC_SRL_D = 0x00190000,
+ OPC_SRA_D = 0x00198000,
+ OPC_ROTR_W = 0x001b0000,
+ OPC_ROTR_D = 0x001b8000,
+ OPC_MUL_W = 0x001c0000,
+ OPC_MULH_W = 0x001c8000,
+ OPC_MULH_WU = 0x001d0000,
+ OPC_MUL_D = 0x001d8000,
+ OPC_MULH_D = 0x001e0000,
+ OPC_MULH_DU = 0x001e8000,
+ OPC_DIV_W = 0x00200000,
+ OPC_MOD_W = 0x00208000,
+ OPC_DIV_WU = 0x00210000,
+ OPC_MOD_WU = 0x00218000,
+ OPC_DIV_D = 0x00220000,
+ OPC_MOD_D = 0x00228000,
+ OPC_DIV_DU = 0x00230000,
+ OPC_MOD_DU = 0x00238000,
+ OPC_SLLI_W = 0x00408000,
+ OPC_SLLI_D = 0x00410000,
+ OPC_SRLI_W = 0x00448000,
+ OPC_SRLI_D = 0x00450000,
+ OPC_SRAI_W = 0x00488000,
+ OPC_SRAI_D = 0x00490000,
+ OPC_ROTRI_W = 0x004c8000,
+ OPC_ROTRI_D = 0x004d0000,
+ OPC_BSTRINS_W = 0x00600000,
+ OPC_BSTRPICK_W = 0x00608000,
+ OPC_BSTRINS_D = 0x00800000,
+ OPC_BSTRPICK_D = 0x00c00000,
+ OPC_SLTI = 0x02000000,
+ OPC_SLTUI = 0x02400000,
+ OPC_ADDI_W = 0x02800000,
+ OPC_ADDI_D = 0x02c00000,
+ OPC_CU52I_D = 0x03000000,
+ OPC_ANDI = 0x03400000,
+ OPC_ORI = 0x03800000,
+ OPC_XORI = 0x03c00000,
+ OPC_LU12I_W = 0x14000000,
+ OPC_CU32I_D = 0x16000000,
+ OPC_PCADDU2I = 0x18000000,
+ OPC_PCALAU12I = 0x1a000000,
+ OPC_PCADDU12I = 0x1c000000,
+ OPC_PCADDU18I = 0x1e000000,
+ OPC_LD_B = 0x28000000,
+ OPC_LD_H = 0x28400000,
+ OPC_LD_W = 0x28800000,
+ OPC_LD_D = 0x28c00000,
+ OPC_ST_B = 0x29000000,
+ OPC_ST_H = 0x29400000,
+ OPC_ST_W = 0x29800000,
+ OPC_ST_D = 0x29c00000,
+ OPC_LD_BU = 0x2a000000,
+ OPC_LD_HU = 0x2a400000,
+ OPC_LD_WU = 0x2a800000,
+ OPC_DBAR = 0x38720000,
+ OPC_JIRL = 0x4c000000,
+ OPC_B = 0x50000000,
+ OPC_BL = 0x54000000,
+ OPC_BEQ = 0x58000000,
+ OPC_BNE = 0x5c000000,
+ OPC_BGT = 0x60000000,
+ OPC_BLE = 0x64000000,
+ OPC_BGTU = 0x68000000,
+ OPC_BLEU = 0x6c000000,
+} LoongArchInsn;
+
+static int32_t __attribute__((unused))
+encode_d_slot(LoongArchInsn opc, uint32_t d)
+{
+ return opc | d;
+}
+
+static int32_t __attribute__((unused))
+encode_dj_slots(LoongArchInsn opc, uint32_t d, uint32_t j)
+{
+ return opc | d | j << 5;
+}
+
+static int32_t __attribute__((unused))
+encode_djk_slots(LoongArchInsn opc, uint32_t d, uint32_t j, uint32_t k)
+{
+ return opc | d | j << 5 | k << 10;
+}
+
+static int32_t __attribute__((unused))
+encode_djkm_slots(LoongArchInsn opc, uint32_t d, uint32_t j, uint32_t k,
+ uint32_t m)
+{
+ return opc | d | j << 5 | k << 10 | m << 16;
+}
+
+static int32_t __attribute__((unused))
+encode_dk_slots(LoongArchInsn opc, uint32_t d, uint32_t k)
+{
+ return opc | d | k << 10;
+}
+
+static int32_t __attribute__((unused))
+encode_dj_insn(LoongArchInsn opc, TCGReg d, TCGReg j)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ return encode_dj_slots(opc, d, j);
+}
+
+static int32_t __attribute__((unused))
+encode_djk_insn(LoongArchInsn opc, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ tcg_debug_assert(k >= 0 && k <= 0x1f);
+ return encode_djk_slots(opc, d, j, k);
+}
+
+static int32_t __attribute__((unused))
+encode_djsk12_insn(LoongArchInsn opc, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ tcg_debug_assert(sk12 >= -0x800 && sk12 <= 0x7ff);
+ return encode_djk_slots(opc, d, j, sk12 & 0xfff);
+}
+
+static int32_t __attribute__((unused))
+encode_djsk16_insn(LoongArchInsn opc, TCGReg d, TCGReg j, int32_t sk16)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ tcg_debug_assert(sk16 >= -0x8000 && sk16 <= 0x7fff);
+ return encode_djk_slots(opc, d, j, sk16 & 0xffff);
+}
+
+static int32_t __attribute__((unused))
+encode_djuk12_insn(LoongArchInsn opc, TCGReg d, TCGReg j, uint32_t uk12)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ tcg_debug_assert(uk12 <= 0xfff);
+ return encode_djk_slots(opc, d, j, uk12);
+}
+
+static int32_t __attribute__((unused))
+encode_djuk5_insn(LoongArchInsn opc, TCGReg d, TCGReg j, uint32_t uk5)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ tcg_debug_assert(uk5 <= 0x1f);
+ return encode_djk_slots(opc, d, j, uk5);
+}
+
+static int32_t __attribute__((unused))
+encode_djuk5um5_insn(LoongArchInsn opc, TCGReg d, TCGReg j, uint32_t uk5,
+ uint32_t um5)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ tcg_debug_assert(uk5 <= 0x1f);
+ tcg_debug_assert(um5 <= 0x1f);
+ return encode_djkm_slots(opc, d, j, uk5, um5);
+}
+
+static int32_t __attribute__((unused))
+encode_djuk6_insn(LoongArchInsn opc, TCGReg d, TCGReg j, uint32_t uk6)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ tcg_debug_assert(uk6 <= 0x3f);
+ return encode_djk_slots(opc, d, j, uk6);
+}
+
+static int32_t __attribute__((unused))
+encode_djuk6um6_insn(LoongArchInsn opc, TCGReg d, TCGReg j, uint32_t uk6,
+ uint32_t um6)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(j >= 0 && j <= 0x1f);
+ tcg_debug_assert(uk6 <= 0x3f);
+ tcg_debug_assert(um6 <= 0x3f);
+ return encode_djkm_slots(opc, d, j, uk6, um6);
+}
+
+static int32_t __attribute__((unused))
+encode_dsj20_insn(LoongArchInsn opc, TCGReg d, int32_t sj20)
+{
+ tcg_debug_assert(d >= 0 && d <= 0x1f);
+ tcg_debug_assert(sj20 >= -0x80000 && sj20 <= 0x7ffff);
+ return encode_dj_slots(opc, d, sj20 & 0xfffff);
+}
+
+static int32_t __attribute__((unused))
+encode_sd10k16_insn(LoongArchInsn opc, int32_t sd10k16)
+{
+ tcg_debug_assert(sd10k16 >= -0x2000000 && sd10k16 <= 0x1ffffff);
+ return encode_dk_slots(opc, (sd10k16 >> 16) & 0x3ff, sd10k16 & 0xffff);
+}
+
+static int32_t __attribute__((unused))
+encode_ud15_insn(LoongArchInsn opc, uint32_t ud15)
+{
+ tcg_debug_assert(ud15 <= 0x7fff);
+ return encode_d_slot(opc, ud15);
+}
+
+/* Emits the `clz.w d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_clz_w(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_CLZ_W, d, j));
+}
+
+/* Emits the `ctz.w d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ctz_w(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_CTZ_W, d, j));
+}
+
+/* Emits the `clz.d d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_clz_d(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_CLZ_D, d, j));
+}
+
+/* Emits the `ctz.d d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ctz_d(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_CTZ_D, d, j));
+}
+
+/* Emits the `revb.2h d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_revb_2h(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_REVB_2H, d, j));
+}
+
+/* Emits the `revb.2w d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_revb_2w(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_REVB_2W, d, j));
+}
+
+/* Emits the `revb.d d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_revb_d(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_REVB_D, d, j));
+}
+
+/* Emits the `sext.h d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sext_h(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_SEXT_H, d, j));
+}
+
+/* Emits the `sext.b d, j` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sext_b(TCGContext *s, TCGReg d, TCGReg j)
+{
+ tcg_out32(s, encode_dj_insn(OPC_SEXT_B, d, j));
+}
+
+/* Emits the `add.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_add_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_ADD_W, d, j, k));
+}
+
+/* Emits the `add.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_add_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_ADD_D, d, j, k));
+}
+
+/* Emits the `sub.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sub_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SUB_W, d, j, k));
+}
+
+/* Emits the `sub.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sub_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SUB_D, d, j, k));
+}
+
+/* Emits the `slt d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_slt(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SLT, d, j, k));
+}
+
+/* Emits the `sltu d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sltu(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SLTU, d, j, k));
+}
+
+/* Emits the `maskeqz d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_maskeqz(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MASKEQZ, d, j, k));
+}
+
+/* Emits the `masknez d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_masknez(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MASKNEZ, d, j, k));
+}
+
+/* Emits the `nor d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_nor(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_NOR, d, j, k));
+}
+
+/* Emits the `and d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_and(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_AND, d, j, k));
+}
+
+/* Emits the `or d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_or(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_OR, d, j, k));
+}
+
+/* Emits the `xor d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_xor(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_XOR, d, j, k));
+}
+
+/* Emits the `orn d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_orn(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_ORN, d, j, k));
+}
+
+/* Emits the `andn d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_andn(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_ANDN, d, j, k));
+}
+
+/* Emits the `sll.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sll_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SLL_W, d, j, k));
+}
+
+/* Emits the `srl.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_srl_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SRL_W, d, j, k));
+}
+
+/* Emits the `sra.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sra_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SRA_W, d, j, k));
+}
+
+/* Emits the `sll.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sll_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SLL_D, d, j, k));
+}
+
+/* Emits the `srl.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_srl_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SRL_D, d, j, k));
+}
+
+/* Emits the `sra.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sra_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_SRA_D, d, j, k));
+}
+
+/* Emits the `rotr.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_rotr_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_ROTR_W, d, j, k));
+}
+
+/* Emits the `rotr.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_rotr_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_ROTR_D, d, j, k));
+}
+
+/* Emits the `mul.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mul_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MUL_W, d, j, k));
+}
+
+/* Emits the `mulh.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mulh_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MULH_W, d, j, k));
+}
+
+/* Emits the `mulh.wu d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mulh_wu(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MULH_WU, d, j, k));
+}
+
+/* Emits the `mul.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mul_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MUL_D, d, j, k));
+}
+
+/* Emits the `mulh.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mulh_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MULH_D, d, j, k));
+}
+
+/* Emits the `mulh.du d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mulh_du(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MULH_DU, d, j, k));
+}
+
+/* Emits the `div.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_div_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_DIV_W, d, j, k));
+}
+
+/* Emits the `mod.w d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mod_w(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MOD_W, d, j, k));
+}
+
+/* Emits the `div.wu d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_div_wu(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_DIV_WU, d, j, k));
+}
+
+/* Emits the `mod.wu d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mod_wu(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MOD_WU, d, j, k));
+}
+
+/* Emits the `div.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_div_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_DIV_D, d, j, k));
+}
+
+/* Emits the `mod.d d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mod_d(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MOD_D, d, j, k));
+}
+
+/* Emits the `div.du d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_div_du(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_DIV_DU, d, j, k));
+}
+
+/* Emits the `mod.du d, j, k` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_mod_du(TCGContext *s, TCGReg d, TCGReg j, TCGReg k)
+{
+ tcg_out32(s, encode_djk_insn(OPC_MOD_DU, d, j, k));
+}
+
+/* Emits the `slli.w d, j, uk5` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_slli_w(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk5)
+{
+ tcg_out32(s, encode_djuk5_insn(OPC_SLLI_W, d, j, uk5));
+}
+
+/* Emits the `slli.d d, j, uk6` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_slli_d(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk6)
+{
+ tcg_out32(s, encode_djuk6_insn(OPC_SLLI_D, d, j, uk6));
+}
+
+/* Emits the `srli.w d, j, uk5` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_srli_w(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk5)
+{
+ tcg_out32(s, encode_djuk5_insn(OPC_SRLI_W, d, j, uk5));
+}
+
+/* Emits the `srli.d d, j, uk6` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_srli_d(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk6)
+{
+ tcg_out32(s, encode_djuk6_insn(OPC_SRLI_D, d, j, uk6));
+}
+
+/* Emits the `srai.w d, j, uk5` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_srai_w(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk5)
+{
+ tcg_out32(s, encode_djuk5_insn(OPC_SRAI_W, d, j, uk5));
+}
+
+/* Emits the `srai.d d, j, uk6` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_srai_d(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk6)
+{
+ tcg_out32(s, encode_djuk6_insn(OPC_SRAI_D, d, j, uk6));
+}
+
+/* Emits the `rotri.w d, j, uk5` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_rotri_w(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk5)
+{
+ tcg_out32(s, encode_djuk5_insn(OPC_ROTRI_W, d, j, uk5));
+}
+
+/* Emits the `rotri.d d, j, uk6` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_rotri_d(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk6)
+{
+ tcg_out32(s, encode_djuk6_insn(OPC_ROTRI_D, d, j, uk6));
+}
+
+/* Emits the `bstrins.w d, j, uk5, um5` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bstrins_w(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk5,
+ uint32_t um5)
+{
+ tcg_out32(s, encode_djuk5um5_insn(OPC_BSTRINS_W, d, j, uk5, um5));
+}
+
+/* Emits the `bstrpick.w d, j, uk5, um5` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bstrpick_w(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk5,
+ uint32_t um5)
+{
+ tcg_out32(s, encode_djuk5um5_insn(OPC_BSTRPICK_W, d, j, uk5, um5));
+}
+
+/* Emits the `bstrins.d d, j, uk6, um6` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bstrins_d(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk6,
+ uint32_t um6)
+{
+ tcg_out32(s, encode_djuk6um6_insn(OPC_BSTRINS_D, d, j, uk6, um6));
+}
+
+/* Emits the `bstrpick.d d, j, uk6, um6` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bstrpick_d(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk6,
+ uint32_t um6)
+{
+ tcg_out32(s, encode_djuk6um6_insn(OPC_BSTRPICK_D, d, j, uk6, um6));
+}
+
+/* Emits the `slti d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_slti(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_SLTI, d, j, sk12));
+}
+
+/* Emits the `sltui d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_sltui(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_SLTUI, d, j, sk12));
+}
+
+/* Emits the `addi.w d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_addi_w(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_ADDI_W, d, j, sk12));
+}
+
+/* Emits the `addi.d d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_addi_d(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_ADDI_D, d, j, sk12));
+}
+
+/* Emits the `cu52i.d d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_cu52i_d(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_CU52I_D, d, j, sk12));
+}
+
+/* Emits the `andi d, j, uk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_andi(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk12)
+{
+ tcg_out32(s, encode_djuk12_insn(OPC_ANDI, d, j, uk12));
+}
+
+/* Emits the `ori d, j, uk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ori(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk12)
+{
+ tcg_out32(s, encode_djuk12_insn(OPC_ORI, d, j, uk12));
+}
+
+/* Emits the `xori d, j, uk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_xori(TCGContext *s, TCGReg d, TCGReg j, uint32_t uk12)
+{
+ tcg_out32(s, encode_djuk12_insn(OPC_XORI, d, j, uk12));
+}
+
+/* Emits the `lu12i.w d, sj20` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_lu12i_w(TCGContext *s, TCGReg d, int32_t sj20)
+{
+ tcg_out32(s, encode_dsj20_insn(OPC_LU12I_W, d, sj20));
+}
+
+/* Emits the `cu32i.d d, sj20` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_cu32i_d(TCGContext *s, TCGReg d, int32_t sj20)
+{
+ tcg_out32(s, encode_dsj20_insn(OPC_CU32I_D, d, sj20));
+}
+
+/* Emits the `pcaddu2i d, sj20` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_pcaddu2i(TCGContext *s, TCGReg d, int32_t sj20)
+{
+ tcg_out32(s, encode_dsj20_insn(OPC_PCADDU2I, d, sj20));
+}
+
+/* Emits the `pcalau12i d, sj20` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_pcalau12i(TCGContext *s, TCGReg d, int32_t sj20)
+{
+ tcg_out32(s, encode_dsj20_insn(OPC_PCALAU12I, d, sj20));
+}
+
+/* Emits the `pcaddu12i d, sj20` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_pcaddu12i(TCGContext *s, TCGReg d, int32_t sj20)
+{
+ tcg_out32(s, encode_dsj20_insn(OPC_PCADDU12I, d, sj20));
+}
+
+/* Emits the `pcaddu18i d, sj20` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_pcaddu18i(TCGContext *s, TCGReg d, int32_t sj20)
+{
+ tcg_out32(s, encode_dsj20_insn(OPC_PCADDU18I, d, sj20));
+}
+
+/* Emits the `ld.b d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ld_b(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_LD_B, d, j, sk12));
+}
+
+/* Emits the `ld.h d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ld_h(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_LD_H, d, j, sk12));
+}
+
+/* Emits the `ld.w d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ld_w(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_LD_W, d, j, sk12));
+}
+
+/* Emits the `ld.d d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ld_d(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_LD_D, d, j, sk12));
+}
+
+/* Emits the `st.b d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_st_b(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_ST_B, d, j, sk12));
+}
+
+/* Emits the `st.h d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_st_h(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_ST_H, d, j, sk12));
+}
+
+/* Emits the `st.w d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_st_w(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_ST_W, d, j, sk12));
+}
+
+/* Emits the `st.d d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_st_d(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_ST_D, d, j, sk12));
+}
+
+/* Emits the `ld.bu d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ld_bu(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_LD_BU, d, j, sk12));
+}
+
+/* Emits the `ld.hu d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ld_hu(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_LD_HU, d, j, sk12));
+}
+
+/* Emits the `ld.wu d, j, sk12` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ld_wu(TCGContext *s, TCGReg d, TCGReg j, int32_t sk12)
+{
+ tcg_out32(s, encode_djsk12_insn(OPC_LD_WU, d, j, sk12));
+}
+
+/* Emits the `dbar ud15` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_dbar(TCGContext *s, uint32_t ud15)
+{
+ tcg_out32(s, encode_ud15_insn(OPC_DBAR, ud15));
+}
+
+/* Emits the `jirl d, j, sk16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_jirl(TCGContext *s, TCGReg d, TCGReg j, int32_t sk16)
+{
+ tcg_out32(s, encode_djsk16_insn(OPC_JIRL, d, j, sk16));
+}
+
+/* Emits the `b sd10k16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_b(TCGContext *s, int32_t sd10k16)
+{
+ tcg_out32(s, encode_sd10k16_insn(OPC_B, sd10k16));
+}
+
+/* Emits the `bl sd10k16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bl(TCGContext *s, int32_t sd10k16)
+{
+ tcg_out32(s, encode_sd10k16_insn(OPC_BL, sd10k16));
+}
+
+/* Emits the `beq d, j, sk16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_beq(TCGContext *s, TCGReg d, TCGReg j, int32_t sk16)
+{
+ tcg_out32(s, encode_djsk16_insn(OPC_BEQ, d, j, sk16));
+}
+
+/* Emits the `bne d, j, sk16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bne(TCGContext *s, TCGReg d, TCGReg j, int32_t sk16)
+{
+ tcg_out32(s, encode_djsk16_insn(OPC_BNE, d, j, sk16));
+}
+
+/* Emits the `bgt d, j, sk16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bgt(TCGContext *s, TCGReg d, TCGReg j, int32_t sk16)
+{
+ tcg_out32(s, encode_djsk16_insn(OPC_BGT, d, j, sk16));
+}
+
+/* Emits the `ble d, j, sk16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_ble(TCGContext *s, TCGReg d, TCGReg j, int32_t sk16)
+{
+ tcg_out32(s, encode_djsk16_insn(OPC_BLE, d, j, sk16));
+}
+
+/* Emits the `bgtu d, j, sk16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bgtu(TCGContext *s, TCGReg d, TCGReg j, int32_t sk16)
+{
+ tcg_out32(s, encode_djsk16_insn(OPC_BGTU, d, j, sk16));
+}
+
+/* Emits the `bleu d, j, sk16` instruction. */
+static void __attribute__((unused))
+tcg_out_opc_bleu(TCGContext *s, TCGReg d, TCGReg j, int32_t sk16)
+{
+ tcg_out32(s, encode_djsk16_insn(OPC_BLEU, d, j, sk16));
+}
+
+/* End of generated code. */
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 05/30] tcg/loongarch64: Add register names, allocation order and input/output sets
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (3 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 04/30] tcg/loongarch64: Add generated instruction opcodes and encoding helpers WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 06/30] tcg/loongarch64: Define the operand constraints WANG Xuerui
` (24 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 118 +++++++++++++++++++++++++++++++
1 file changed, 118 insertions(+)
create mode 100644 tcg/loongarch64/tcg-target.c.inc
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
new file mode 100644
index 0000000000..42eebef78e
--- /dev/null
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -0,0 +1,118 @@
+/*
+ * Tiny Code Generator for QEMU
+ *
+ * Copyright (c) 2021 WANG Xuerui <git@xen0n.name>
+ *
+ * Based on tcg/riscv/tcg-target.c.inc
+ *
+ * Copyright (c) 2018 SiFive, Inc
+ * Copyright (c) 2008-2009 Arnaud Patard <arnaud.patard@rtp-net.org>
+ * Copyright (c) 2009 Aurelien Jarno <aurelien@aurel32.net>
+ * Copyright (c) 2008 Fabrice Bellard
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ */
+
+#ifdef CONFIG_DEBUG_TCG
+static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
+ "zero",
+ "ra",
+ "tp",
+ "sp",
+ "a0",
+ "a1",
+ "a2",
+ "a3",
+ "a4",
+ "a5",
+ "a6",
+ "a7",
+ "t0",
+ "t1",
+ "t2",
+ "t3",
+ "t4",
+ "t5",
+ "t6",
+ "t7",
+ "t8",
+ "r21", /* reserved in the LP64 ABI, hence no ABI name */
+ "s9",
+ "s0",
+ "s1",
+ "s2",
+ "s3",
+ "s4",
+ "s5",
+ "s6",
+ "s7",
+ "s8"
+};
+#endif
+
+static const int tcg_target_reg_alloc_order[] = {
+ /* Registers preserved across calls */
+ /* TCG_REG_S0 reserved for TCG_AREG0 */
+ TCG_REG_S1,
+ TCG_REG_S2,
+ TCG_REG_S3,
+ TCG_REG_S4,
+ TCG_REG_S5,
+ TCG_REG_S6,
+ TCG_REG_S7,
+ TCG_REG_S8,
+ TCG_REG_S9,
+
+ /* Registers (potentially) clobbered across calls */
+ TCG_REG_T0,
+ TCG_REG_T1,
+ TCG_REG_T2,
+ TCG_REG_T3,
+ TCG_REG_T4,
+ TCG_REG_T5,
+ TCG_REG_T6,
+ TCG_REG_T7,
+ TCG_REG_T8,
+
+ /* Argument registers, opposite order of allocation. */
+ TCG_REG_A7,
+ TCG_REG_A6,
+ TCG_REG_A5,
+ TCG_REG_A4,
+ TCG_REG_A3,
+ TCG_REG_A2,
+ TCG_REG_A1,
+ TCG_REG_A0,
+};
+
+static const int tcg_target_call_iarg_regs[] = {
+ TCG_REG_A0,
+ TCG_REG_A1,
+ TCG_REG_A2,
+ TCG_REG_A3,
+ TCG_REG_A4,
+ TCG_REG_A5,
+ TCG_REG_A6,
+ TCG_REG_A7,
+};
+
+static const int tcg_target_call_oarg_regs[] = {
+ TCG_REG_A0,
+ TCG_REG_A1,
+};
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 06/30] tcg/loongarch64: Define the operand constraints
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (4 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 05/30] tcg/loongarch64: Add register names, allocation order and input/output sets WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 07/30] tcg/loongarch64: Implement necessary relocation operations WANG Xuerui
` (23 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-str.h | 28 +++++++++++++++
tcg/loongarch64/tcg-target.c.inc | 52 ++++++++++++++++++++++++++++
2 files changed, 80 insertions(+)
create mode 100644 tcg/loongarch64/tcg-target-con-str.h
diff --git a/tcg/loongarch64/tcg-target-con-str.h b/tcg/loongarch64/tcg-target-con-str.h
new file mode 100644
index 0000000000..c3986a4fd4
--- /dev/null
+++ b/tcg/loongarch64/tcg-target-con-str.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Define LoongArch target-specific operand constraints.
+ *
+ * Copyright (c) 2021 WANG Xuerui <git@xen0n.name>
+ *
+ * Based on tcg/riscv/tcg-target-con-str.h
+ *
+ * Copyright (c) 2021 Linaro
+ */
+
+/*
+ * Define constraint letters for register sets:
+ * REGS(letter, register_mask)
+ */
+REGS('r', ALL_GENERAL_REGS)
+REGS('L', ALL_GENERAL_REGS & ~SOFTMMU_RESERVE_REGS)
+
+/*
+ * Define constraint letters for constants:
+ * CONST(letter, TCG_CT_CONST_* bit set)
+ */
+CONST('I', TCG_CT_CONST_S12)
+CONST('N', TCG_CT_CONST_N12)
+CONST('U', TCG_CT_CONST_U12)
+CONST('Z', TCG_CT_CONST_ZERO)
+CONST('C', TCG_CT_CONST_C12)
+CONST('W', TCG_CT_CONST_WSZ)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 42eebef78e..f0930f77ef 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -116,3 +116,55 @@ static const int tcg_target_call_oarg_regs[] = {
TCG_REG_A0,
TCG_REG_A1,
};
+
+#define TCG_CT_CONST_ZERO 0x100
+#define TCG_CT_CONST_S12 0x200
+#define TCG_CT_CONST_N12 0x400
+#define TCG_CT_CONST_U12 0x800
+#define TCG_CT_CONST_C12 0x1000
+#define TCG_CT_CONST_WSZ 0x2000
+
+#define ALL_GENERAL_REGS MAKE_64BIT_MASK(0, 32)
+/*
+ * For softmmu, we need to avoid conflicts with the first 5
+ * argument registers to call the helper. Some of these are
+ * also used for the tlb lookup.
+ */
+#ifdef CONFIG_SOFTMMU
+#define SOFTMMU_RESERVE_REGS MAKE_64BIT_MASK(TCG_REG_A0, 5)
+#else
+#define SOFTMMU_RESERVE_REGS 0
+#endif
+
+
+static inline tcg_target_long sextreg(tcg_target_long val, int pos, int len)
+{
+ return sextract64(val, pos, len);
+}
+
+/* test if a constant matches the constraint */
+static bool tcg_target_const_match(int64_t val, TCGType type, int ct)
+{
+ if (ct & TCG_CT_CONST) {
+ return 1;
+ }
+ if ((ct & TCG_CT_CONST_ZERO) && val == 0) {
+ return 1;
+ }
+ if ((ct & TCG_CT_CONST_S12) && val == sextreg(val, 0, 12)) {
+ return 1;
+ }
+ if ((ct & TCG_CT_CONST_N12) && -val == sextreg(-val, 0, 12)) {
+ return 1;
+ }
+ if ((ct & TCG_CT_CONST_U12) && val >= 0 && val <= 0xfff) {
+ return 1;
+ }
+ if ((ct & TCG_CT_CONST_C12) && ~val >= 0 && ~val <= 0xfff) {
+ return 1;
+ }
+ if ((ct & TCG_CT_CONST_WSZ) && val == (type == TCG_TYPE_I32 ? 32 : 64)) {
+ return 1;
+ }
+ return 0;
+}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 07/30] tcg/loongarch64: Implement necessary relocation operations
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (5 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 06/30] tcg/loongarch64: Define the operand constraints WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 08/30] tcg/loongarch64: Implement the memory barrier op WANG Xuerui
` (22 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 66 ++++++++++++++++++++++++++++++++
1 file changed, 66 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index f0930f77ef..6967f143e9 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -168,3 +168,69 @@ static bool tcg_target_const_match(int64_t val, TCGType type, int ct)
}
return 0;
}
+
+/*
+ * Relocations
+ */
+
+/*
+ * Relocation records defined in LoongArch ELF psABI v1.00 is way too
+ * complicated; a whopping stack machine is needed to stuff the fields, at
+ * the very least one SOP_PUSH and one SOP_POP (of the correct format) are
+ * needed.
+ *
+ * Hence, define our own simpler relocation types. Numbers are chosen as to
+ * not collide with potential future additions to the true ELF relocation
+ * type enum.
+ */
+
+/* Field Sk16, shifted right by 2; suitable for conditional jumps */
+#define R_LOONGARCH_BR_SK16 256
+/* Field Sd10k16, shifted right by 2; suitable for B and BL */
+#define R_LOONGARCH_BR_SD10K16 257
+
+static bool reloc_br_sk16(tcg_insn_unit *src_rw, const tcg_insn_unit *target)
+{
+ const tcg_insn_unit *src_rx = tcg_splitwx_to_rx(src_rw);
+ intptr_t offset = (intptr_t)target - (intptr_t)src_rx;
+
+ tcg_debug_assert((offset & 3) == 0);
+ offset >>= 2;
+ if (offset == sextreg(offset, 0, 16)) {
+ *src_rw = deposit64(*src_rw, 10, 16, offset);
+ return true;
+ }
+
+ return false;
+}
+
+static bool reloc_br_sd10k16(tcg_insn_unit *src_rw,
+ const tcg_insn_unit *target)
+{
+ const tcg_insn_unit *src_rx = tcg_splitwx_to_rx(src_rw);
+ intptr_t offset = (intptr_t)target - (intptr_t)src_rx;
+
+ tcg_debug_assert((offset & 3) == 0);
+ offset >>= 2;
+ if (offset == sextreg(offset, 0, 26)) {
+ *src_rw = deposit64(*src_rw, 0, 10, offset >> 16); /* slot d10 */
+ *src_rw = deposit64(*src_rw, 10, 16, offset); /* slot k16 */
+ return true;
+ }
+
+ return false;
+}
+
+static bool patch_reloc(tcg_insn_unit *code_ptr, int type,
+ intptr_t value, intptr_t addend)
+{
+ tcg_debug_assert(addend == 0);
+ switch (type) {
+ case R_LOONGARCH_BR_SK16:
+ return reloc_br_sk16(code_ptr, (tcg_insn_unit *)value);
+ case R_LOONGARCH_BR_SD10K16:
+ return reloc_br_sd10k16(code_ptr, (tcg_insn_unit *)value);
+ default:
+ g_assert_not_reached();
+ }
+}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 08/30] tcg/loongarch64: Implement the memory barrier op
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (6 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 07/30] tcg/loongarch64: Implement necessary relocation operations WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 09/30] tcg/loongarch64: Implement tcg_out_mov and tcg_out_movi WANG Xuerui
` (21 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 32 ++++++++++++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 6967f143e9..8f7c556c37 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -234,3 +234,35 @@ static bool patch_reloc(tcg_insn_unit *code_ptr, int type,
g_assert_not_reached();
}
}
+
+#include "tcg-insn-defs.c.inc"
+
+/*
+ * TCG intrinsics
+ */
+
+static void tcg_out_mb(TCGContext *s, TCGArg a0)
+{
+ /* Baseline LoongArch only has the full barrier, unfortunately. */
+ tcg_out_opc_dbar(s, 0);
+}
+
+/*
+ * Entry-points
+ */
+
+static void tcg_out_op(TCGContext *s, TCGOpcode opc,
+ const TCGArg args[TCG_MAX_OP_ARGS],
+ const int const_args[TCG_MAX_OP_ARGS])
+{
+ TCGArg a0 = args[0];
+
+ switch (opc) {
+ case INDEX_op_mb:
+ tcg_out_mb(s, a0);
+ break;
+
+ default:
+ g_assert_not_reached();
+ }
+}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 09/30] tcg/loongarch64: Implement tcg_out_mov and tcg_out_movi
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (7 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 08/30] tcg/loongarch64: Implement the memory barrier op WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-24 14:52 ` Richard Henderson
2021-09-23 16:59 ` [PATCH v4 10/30] tcg/loongarch64: Implement goto_ptr WANG Xuerui
` (20 subsequent siblings)
29 siblings, 1 reply; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
---
tcg/loongarch64/tcg-target.c.inc | 111 +++++++++++++++++++++++++++++++
1 file changed, 111 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 8f7c556c37..afaed5017a 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -247,6 +247,115 @@ static void tcg_out_mb(TCGContext *s, TCGArg a0)
tcg_out_opc_dbar(s, 0);
}
+static bool tcg_out_mov(TCGContext *s, TCGType type, TCGReg ret, TCGReg arg)
+{
+ if (ret == arg) {
+ return true;
+ }
+ switch (type) {
+ case TCG_TYPE_I32:
+ case TCG_TYPE_I64:
+ /*
+ * Conventional register-register move used in LoongArch is
+ * `or dst, src, zero`.
+ */
+ tcg_out_opc_or(s, ret, arg, TCG_REG_ZERO);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+ return true;
+}
+
+static bool imm_part_needs_loading(bool high_bits_are_ones,
+ tcg_target_long part)
+{
+ if (high_bits_are_ones) {
+ return part != -1;
+ } else {
+ return part != 0;
+ }
+}
+
+static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd,
+ tcg_target_long val)
+{
+ if (type == TCG_TYPE_I32) {
+ val = (int32_t)val;
+ }
+
+ /* Single-instruction cases. */
+ tcg_target_long low = sextreg(val, 0, 12);
+ if (low == val) {
+ /* val fits in simm12: addi.w rd, zero, val */
+ tcg_out_opc_addi_w(s, rd, TCG_REG_ZERO, val);
+ return;
+ }
+ if (0x800 <= val && val <= 0xfff) {
+ /* val fits in uimm12: ori rd, zero, val */
+ tcg_out_opc_ori(s, rd, TCG_REG_ZERO, val);
+ return;
+ }
+
+ /* Test for PC-relative values that can be loaded faster. */
+ intptr_t pc_offset = tcg_pcrel_diff(s, (void *)val);
+ if (pc_offset == sextreg(pc_offset, 0, 22) && (pc_offset & 3) == 0) {
+ tcg_out_opc_pcaddu2i(s, rd, pc_offset >> 2);
+ return;
+ }
+
+ if (pc_offset == (int32_t)pc_offset) {
+ /* Load using pcalau12i + ori. */
+ tcg_target_long pc_hi = (val - pc_offset) >> 12;
+ tcg_target_long val_hi = val >> 12;
+ tcg_target_long offset_hi = val_hi - pc_hi;
+ tcg_debug_assert(offset_hi == sextreg(offset_hi, 0, 20));
+ tcg_out_opc_pcalau12i(s, rd, offset_hi);
+ if (low != 0) {
+ tcg_out_opc_ori(s, rd, rd, low & 0xfff);
+ }
+ return;
+ }
+
+ /*
+ * Slow path: at most lu12i.w + ori + cu32i.d + cu52i.d.
+ *
+ * Chop upper bits into 3 immediate-field-sized segments respectively.
+ */
+ tcg_target_long upper = sextreg(val, 12, 20);
+ tcg_target_long higher = sextreg(val, 32, 20);
+ tcg_target_long top = sextreg(val, 52, 12);
+ bool rd_written = false;
+ bool rd_high_bits_are_ones = false;
+
+ if (upper != 0) {
+ tcg_out_opc_lu12i_w(s, rd, upper);
+ rd_written = true;
+ rd_high_bits_are_ones = upper < 0;
+ }
+ if (low != 0) {
+ tcg_out_opc_ori(s, rd, rd_written ? rd : TCG_REG_ZERO, low & 0xfff);
+ rd_written = true;
+ }
+
+ if (imm_part_needs_loading(rd_high_bits_are_ones, higher)) {
+ if (!rd_written) {
+ /*
+ * cu32i.d only has 1 input register, yet rd is still untouched
+ * by now. We must zero it here.
+ */
+ tcg_out_opc_or(s, rd, TCG_REG_ZERO, TCG_REG_ZERO);
+ }
+ tcg_out_opc_cu32i_d(s, rd, higher);
+ rd_written = true;
+ rd_high_bits_are_ones = higher < 0;
+ }
+
+ if (imm_part_needs_loading(rd_high_bits_are_ones, top)) {
+ tcg_out_opc_cu52i_d(s, rd, rd_written ? rd : TCG_REG_ZERO, top);
+ }
+}
+
/*
* Entry-points
*/
@@ -262,6 +371,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_mb(s, a0);
break;
+ case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
+ case INDEX_op_mov_i64:
default:
g_assert_not_reached();
}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 10/30] tcg/loongarch64: Implement goto_ptr
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (8 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 09/30] tcg/loongarch64: Implement tcg_out_mov and tcg_out_movi WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 11/30] tcg/loongarch64: Implement sign-/zero-extension ops WANG Xuerui
` (19 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 17 +++++++++++++++++
tcg/loongarch64/tcg-target.c.inc | 15 +++++++++++++++
2 files changed, 32 insertions(+)
create mode 100644 tcg/loongarch64/tcg-target-con-set.h
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
new file mode 100644
index 0000000000..5cc4407367
--- /dev/null
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -0,0 +1,17 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Define LoongArch target-specific constraint sets.
+ *
+ * Copyright (c) 2021 WANG Xuerui <git@xen0n.name>
+ *
+ * Based on tcg/riscv/tcg-target-con-set.h
+ *
+ * Copyright (c) 2021 Linaro
+ */
+
+/*
+ * C_On_Im(...) defines a constraint set with <n> outputs and <m> inputs.
+ * Each operand should be a sequence of constraint letters as defined by
+ * tcg-target-con-str.h; the constraint combination is inclusive or.
+ */
+C_O0_I1(r)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index afaed5017a..21f812a6a9 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -371,9 +371,24 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_mb(s, a0);
break;
+ case INDEX_op_goto_ptr:
+ tcg_out_opc_jirl(s, TCG_REG_ZERO, a0, 0);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
g_assert_not_reached();
}
}
+
+static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
+{
+ switch (op) {
+ case INDEX_op_goto_ptr:
+ return C_O0_I1(r);
+
+ default:
+ g_assert_not_reached();
+ }
+}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 11/30] tcg/loongarch64: Implement sign-/zero-extension ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (9 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 10/30] tcg/loongarch64: Implement goto_ptr WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 12/30] tcg/loongarch64: Implement not/and/or/xor/nor/andc/orc ops WANG Xuerui
` (18 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 82 ++++++++++++++++++++++++++++
tcg/loongarch64/tcg-target.h | 24 ++++----
3 files changed, 95 insertions(+), 12 deletions(-)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index 5cc4407367..7e459490ea 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -15,3 +15,4 @@
* tcg-target-con-str.h; the constraint combination is inclusive or.
*/
C_O0_I1(r)
+C_O1_I1(r, r)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 21f812a6a9..346e232129 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -356,6 +356,36 @@ static void tcg_out_movi(TCGContext *s, TCGType type, TCGReg rd,
}
}
+static void tcg_out_ext8u(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+ tcg_out_opc_andi(s, ret, arg, 0xff);
+}
+
+static void tcg_out_ext16u(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+ tcg_out_opc_bstrpick_w(s, ret, arg, 0, 15);
+}
+
+static void tcg_out_ext32u(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+ tcg_out_opc_bstrpick_d(s, ret, arg, 0, 31);
+}
+
+static void tcg_out_ext8s(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+ tcg_out_opc_sext_b(s, ret, arg);
+}
+
+static void tcg_out_ext16s(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+ tcg_out_opc_sext_h(s, ret, arg);
+}
+
+static void tcg_out_ext32s(TCGContext *s, TCGReg ret, TCGReg arg)
+{
+ tcg_out_opc_addi_w(s, ret, arg, 0);
+}
+
/*
* Entry-points
*/
@@ -365,6 +395,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
const int const_args[TCG_MAX_OP_ARGS])
{
TCGArg a0 = args[0];
+ TCGArg a1 = args[1];
switch (opc) {
case INDEX_op_mb:
@@ -375,6 +406,41 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_opc_jirl(s, TCG_REG_ZERO, a0, 0);
break;
+ case INDEX_op_ext8s_i32:
+ case INDEX_op_ext8s_i64:
+ tcg_out_ext8s(s, a0, a1);
+ break;
+
+ case INDEX_op_ext8u_i32:
+ case INDEX_op_ext8u_i64:
+ tcg_out_ext8u(s, a0, a1);
+ break;
+
+ case INDEX_op_ext16s_i32:
+ case INDEX_op_ext16s_i64:
+ tcg_out_ext16s(s, a0, a1);
+ break;
+
+ case INDEX_op_ext16u_i32:
+ case INDEX_op_ext16u_i64:
+ tcg_out_ext16u(s, a0, a1);
+ break;
+
+ case INDEX_op_ext32u_i64:
+ case INDEX_op_extu_i32_i64:
+ tcg_out_ext32u(s, a0, a1);
+ break;
+
+ case INDEX_op_ext32s_i64:
+ case INDEX_op_extrl_i64_i32:
+ case INDEX_op_ext_i32_i64:
+ tcg_out_ext32s(s, a0, a1);
+ break;
+
+ case INDEX_op_extrh_i64_i32:
+ tcg_out_opc_srai_d(s, a0, a1, 32);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -388,6 +454,22 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_goto_ptr:
return C_O0_I1(r);
+ case INDEX_op_ext8s_i32:
+ case INDEX_op_ext8s_i64:
+ case INDEX_op_ext8u_i32:
+ case INDEX_op_ext8u_i64:
+ case INDEX_op_ext16s_i32:
+ case INDEX_op_ext16s_i64:
+ case INDEX_op_ext16u_i32:
+ case INDEX_op_ext16u_i64:
+ case INDEX_op_ext32s_i64:
+ case INDEX_op_ext32u_i64:
+ case INDEX_op_extu_i32_i64:
+ case INDEX_op_extrl_i64_i32:
+ case INDEX_op_extrh_i64_i32:
+ case INDEX_op_ext_i32_i64:
+ return C_O1_I1(r, r);
+
default:
g_assert_not_reached();
}
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index 5fc097b3c1..2b7d5a19b9 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -107,10 +107,10 @@ typedef enum {
#define TCG_TARGET_HAS_muls2_i32 0
#define TCG_TARGET_HAS_muluh_i32 0
#define TCG_TARGET_HAS_mulsh_i32 0
-#define TCG_TARGET_HAS_ext8s_i32 0
-#define TCG_TARGET_HAS_ext16s_i32 0
-#define TCG_TARGET_HAS_ext8u_i32 0
-#define TCG_TARGET_HAS_ext16u_i32 0
+#define TCG_TARGET_HAS_ext8s_i32 1
+#define TCG_TARGET_HAS_ext16s_i32 1
+#define TCG_TARGET_HAS_ext8u_i32 1
+#define TCG_TARGET_HAS_ext16u_i32 1
#define TCG_TARGET_HAS_bswap16_i32 0
#define TCG_TARGET_HAS_bswap32_i32 0
#define TCG_TARGET_HAS_not_i32 0
@@ -138,14 +138,14 @@ typedef enum {
#define TCG_TARGET_HAS_extract_i64 0
#define TCG_TARGET_HAS_sextract_i64 0
#define TCG_TARGET_HAS_extract2_i64 0
-#define TCG_TARGET_HAS_extrl_i64_i32 0
-#define TCG_TARGET_HAS_extrh_i64_i32 0
-#define TCG_TARGET_HAS_ext8s_i64 0
-#define TCG_TARGET_HAS_ext16s_i64 0
-#define TCG_TARGET_HAS_ext32s_i64 0
-#define TCG_TARGET_HAS_ext8u_i64 0
-#define TCG_TARGET_HAS_ext16u_i64 0
-#define TCG_TARGET_HAS_ext32u_i64 0
+#define TCG_TARGET_HAS_extrl_i64_i32 1
+#define TCG_TARGET_HAS_extrh_i64_i32 1
+#define TCG_TARGET_HAS_ext8s_i64 1
+#define TCG_TARGET_HAS_ext16s_i64 1
+#define TCG_TARGET_HAS_ext32s_i64 1
+#define TCG_TARGET_HAS_ext8u_i64 1
+#define TCG_TARGET_HAS_ext16u_i64 1
+#define TCG_TARGET_HAS_ext32u_i64 1
#define TCG_TARGET_HAS_bswap16_i64 0
#define TCG_TARGET_HAS_bswap32_i64 0
#define TCG_TARGET_HAS_bswap64_i64 0
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 12/30] tcg/loongarch64: Implement not/and/or/xor/nor/andc/orc ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (10 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 11/30] tcg/loongarch64: Implement sign-/zero-extension ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 13/30] tcg/loongarch64: Implement deposit/extract ops WANG Xuerui
` (17 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 2 +
tcg/loongarch64/tcg-target.c.inc | 88 ++++++++++++++++++++++++++++
tcg/loongarch64/tcg-target.h | 16 ++---
3 files changed, 98 insertions(+), 8 deletions(-)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index 7e459490ea..9ac24b8ad0 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -16,3 +16,5 @@
*/
C_O0_I1(r)
C_O1_I1(r, r)
+C_O1_I2(r, r, rC)
+C_O1_I2(r, r, rU)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 346e232129..0ec9044111 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -396,6 +396,8 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
{
TCGArg a0 = args[0];
TCGArg a1 = args[1];
+ TCGArg a2 = args[2];
+ int c2 = const_args[2];
switch (opc) {
case INDEX_op_mb:
@@ -441,6 +443,68 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_opc_srai_d(s, a0, a1, 32);
break;
+ case INDEX_op_not_i32:
+ case INDEX_op_not_i64:
+ tcg_out_opc_nor(s, a0, a1, TCG_REG_ZERO);
+ break;
+
+ case INDEX_op_nor_i32:
+ case INDEX_op_nor_i64:
+ if (c2) {
+ tcg_out_opc_ori(s, a0, a1, a2);
+ tcg_out_opc_nor(s, a0, a0, TCG_REG_ZERO);
+ } else {
+ tcg_out_opc_nor(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_andc_i32:
+ case INDEX_op_andc_i64:
+ if (c2) {
+ /* guaranteed to fit due to constraint */
+ tcg_out_opc_andi(s, a0, a1, ~a2);
+ } else {
+ tcg_out_opc_andn(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_orc_i32:
+ case INDEX_op_orc_i64:
+ if (c2) {
+ /* guaranteed to fit due to constraint */
+ tcg_out_opc_ori(s, a0, a1, ~a2);
+ } else {
+ tcg_out_opc_orn(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_and_i32:
+ case INDEX_op_and_i64:
+ if (c2) {
+ tcg_out_opc_andi(s, a0, a1, a2);
+ } else {
+ tcg_out_opc_and(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_or_i32:
+ case INDEX_op_or_i64:
+ if (c2) {
+ tcg_out_opc_ori(s, a0, a1, a2);
+ } else {
+ tcg_out_opc_or(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_xor_i32:
+ case INDEX_op_xor_i64:
+ if (c2) {
+ tcg_out_opc_xori(s, a0, a1, a2);
+ } else {
+ tcg_out_opc_xor(s, a0, a1, a2);
+ }
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -468,8 +532,32 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_extrl_i64_i32:
case INDEX_op_extrh_i64_i32:
case INDEX_op_ext_i32_i64:
+ case INDEX_op_not_i32:
+ case INDEX_op_not_i64:
return C_O1_I1(r, r);
+ case INDEX_op_andc_i32:
+ case INDEX_op_andc_i64:
+ case INDEX_op_orc_i32:
+ case INDEX_op_orc_i64:
+ /*
+ * LoongArch insns for these ops don't have reg-imm forms, but we
+ * can express using andi/ori if ~constant satisfies
+ * TCG_CT_CONST_U12.
+ */
+ return C_O1_I2(r, r, rC);
+
+ case INDEX_op_and_i32:
+ case INDEX_op_and_i64:
+ case INDEX_op_nor_i32:
+ case INDEX_op_nor_i64:
+ case INDEX_op_or_i32:
+ case INDEX_op_or_i64:
+ case INDEX_op_xor_i32:
+ case INDEX_op_xor_i64:
+ /* LoongArch reg-imm bitops have their imms ZERO-extended */
+ return C_O1_I2(r, r, rU);
+
default:
g_assert_not_reached();
}
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index 2b7d5a19b9..cb1739a54a 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -113,13 +113,13 @@ typedef enum {
#define TCG_TARGET_HAS_ext16u_i32 1
#define TCG_TARGET_HAS_bswap16_i32 0
#define TCG_TARGET_HAS_bswap32_i32 0
-#define TCG_TARGET_HAS_not_i32 0
+#define TCG_TARGET_HAS_not_i32 1
#define TCG_TARGET_HAS_neg_i32 0
-#define TCG_TARGET_HAS_andc_i32 0
-#define TCG_TARGET_HAS_orc_i32 0
+#define TCG_TARGET_HAS_andc_i32 1
+#define TCG_TARGET_HAS_orc_i32 1
#define TCG_TARGET_HAS_eqv_i32 0
#define TCG_TARGET_HAS_nand_i32 0
-#define TCG_TARGET_HAS_nor_i32 0
+#define TCG_TARGET_HAS_nor_i32 1
#define TCG_TARGET_HAS_clz_i32 0
#define TCG_TARGET_HAS_ctz_i32 0
#define TCG_TARGET_HAS_ctpop_i32 0
@@ -149,13 +149,13 @@ typedef enum {
#define TCG_TARGET_HAS_bswap16_i64 0
#define TCG_TARGET_HAS_bswap32_i64 0
#define TCG_TARGET_HAS_bswap64_i64 0
-#define TCG_TARGET_HAS_not_i64 0
+#define TCG_TARGET_HAS_not_i64 1
#define TCG_TARGET_HAS_neg_i64 0
-#define TCG_TARGET_HAS_andc_i64 0
-#define TCG_TARGET_HAS_orc_i64 0
+#define TCG_TARGET_HAS_andc_i64 1
+#define TCG_TARGET_HAS_orc_i64 1
#define TCG_TARGET_HAS_eqv_i64 0
#define TCG_TARGET_HAS_nand_i64 0
-#define TCG_TARGET_HAS_nor_i64 0
+#define TCG_TARGET_HAS_nor_i64 1
#define TCG_TARGET_HAS_clz_i64 0
#define TCG_TARGET_HAS_ctz_i64 0
#define TCG_TARGET_HAS_ctpop_i64 0
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 13/30] tcg/loongarch64: Implement deposit/extract ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (11 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 12/30] tcg/loongarch64: Implement not/and/or/xor/nor/andc/orc ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 14/30] tcg/loongarch64: Implement bswap{16,32,64} ops WANG Xuerui
` (16 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 21 +++++++++++++++++++++
tcg/loongarch64/tcg-target.h | 8 ++++----
3 files changed, 26 insertions(+), 4 deletions(-)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index 9ac24b8ad0..d958183020 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -18,3 +18,4 @@ C_O0_I1(r)
C_O1_I1(r, r)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, rU)
+C_O1_I2(r, 0, rZ)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 0ec9044111..46b4f54562 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -505,6 +505,20 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
}
break;
+ case INDEX_op_extract_i32:
+ tcg_out_opc_bstrpick_w(s, a0, a1, a2, a2 + args[3] - 1);
+ break;
+ case INDEX_op_extract_i64:
+ tcg_out_opc_bstrpick_d(s, a0, a1, a2, a2 + args[3] - 1);
+ break;
+
+ case INDEX_op_deposit_i32:
+ tcg_out_opc_bstrins_w(s, a0, a2, args[3], args[3] + args[4] - 1);
+ break;
+ case INDEX_op_deposit_i64:
+ tcg_out_opc_bstrins_d(s, a0, a2, args[3], args[3] + args[4] - 1);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -534,6 +548,8 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_ext_i32_i64:
case INDEX_op_not_i32:
case INDEX_op_not_i64:
+ case INDEX_op_extract_i32:
+ case INDEX_op_extract_i64:
return C_O1_I1(r, r);
case INDEX_op_andc_i32:
@@ -558,6 +574,11 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
/* LoongArch reg-imm bitops have their imms ZERO-extended */
return C_O1_I2(r, r, rU);
+ case INDEX_op_deposit_i32:
+ case INDEX_op_deposit_i64:
+ /* Must deposit into the same register as input */
+ return C_O1_I2(r, 0, rZ);
+
default:
g_assert_not_reached();
}
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index cb1739a54a..084d635a8e 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -97,8 +97,8 @@ typedef enum {
#define TCG_TARGET_HAS_rem_i32 0
#define TCG_TARGET_HAS_div2_i32 0
#define TCG_TARGET_HAS_rot_i32 0
-#define TCG_TARGET_HAS_deposit_i32 0
-#define TCG_TARGET_HAS_extract_i32 0
+#define TCG_TARGET_HAS_deposit_i32 1
+#define TCG_TARGET_HAS_extract_i32 1
#define TCG_TARGET_HAS_sextract_i32 0
#define TCG_TARGET_HAS_extract2_i32 0
#define TCG_TARGET_HAS_add2_i32 0
@@ -134,8 +134,8 @@ typedef enum {
#define TCG_TARGET_HAS_rem_i64 0
#define TCG_TARGET_HAS_div2_i64 0
#define TCG_TARGET_HAS_rot_i64 0
-#define TCG_TARGET_HAS_deposit_i64 0
-#define TCG_TARGET_HAS_extract_i64 0
+#define TCG_TARGET_HAS_deposit_i64 1
+#define TCG_TARGET_HAS_extract_i64 1
#define TCG_TARGET_HAS_sextract_i64 0
#define TCG_TARGET_HAS_extract2_i64 0
#define TCG_TARGET_HAS_extrl_i64_i32 1
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 14/30] tcg/loongarch64: Implement bswap{16,32,64} ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (12 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 13/30] tcg/loongarch64: Implement deposit/extract ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 15/30] tcg/loongarch64: Implement clz/ctz ops WANG Xuerui
` (15 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 32 ++++++++++++++++++++++++++++++++
tcg/loongarch64/tcg-target.h | 10 +++++-----
2 files changed, 37 insertions(+), 5 deletions(-)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 46b4f54562..ce6843b408 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -519,6 +519,33 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_opc_bstrins_d(s, a0, a2, args[3], args[3] + args[4] - 1);
break;
+ case INDEX_op_bswap16_i32:
+ case INDEX_op_bswap16_i64:
+ tcg_out_opc_revb_2h(s, a0, a1);
+ if (a2 & TCG_BSWAP_OS) {
+ tcg_out_ext16s(s, a0, a0);
+ } else if ((a2 & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
+ tcg_out_ext16u(s, a0, a0);
+ }
+ break;
+
+ case INDEX_op_bswap32_i32:
+ /* All 32-bit values are computed sign-extended in the register. */
+ a2 = TCG_BSWAP_OS;
+ /* fallthrough */
+ case INDEX_op_bswap32_i64:
+ tcg_out_opc_revb_2w(s, a0, a1);
+ if (a2 & TCG_BSWAP_OS) {
+ tcg_out_ext32s(s, a0, a0);
+ } else if ((a2 & (TCG_BSWAP_IZ | TCG_BSWAP_OZ)) == TCG_BSWAP_OZ) {
+ tcg_out_ext32u(s, a0, a0);
+ }
+ break;
+
+ case INDEX_op_bswap64_i64:
+ tcg_out_opc_revb_d(s, a0, a1);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -550,6 +577,11 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_not_i64:
case INDEX_op_extract_i32:
case INDEX_op_extract_i64:
+ case INDEX_op_bswap16_i32:
+ case INDEX_op_bswap16_i64:
+ case INDEX_op_bswap32_i32:
+ case INDEX_op_bswap32_i64:
+ case INDEX_op_bswap64_i64:
return C_O1_I1(r, r);
case INDEX_op_andc_i32:
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index 084d635a8e..02d17d2f6d 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -111,8 +111,8 @@ typedef enum {
#define TCG_TARGET_HAS_ext16s_i32 1
#define TCG_TARGET_HAS_ext8u_i32 1
#define TCG_TARGET_HAS_ext16u_i32 1
-#define TCG_TARGET_HAS_bswap16_i32 0
-#define TCG_TARGET_HAS_bswap32_i32 0
+#define TCG_TARGET_HAS_bswap16_i32 1
+#define TCG_TARGET_HAS_bswap32_i32 1
#define TCG_TARGET_HAS_not_i32 1
#define TCG_TARGET_HAS_neg_i32 0
#define TCG_TARGET_HAS_andc_i32 1
@@ -146,9 +146,9 @@ typedef enum {
#define TCG_TARGET_HAS_ext8u_i64 1
#define TCG_TARGET_HAS_ext16u_i64 1
#define TCG_TARGET_HAS_ext32u_i64 1
-#define TCG_TARGET_HAS_bswap16_i64 0
-#define TCG_TARGET_HAS_bswap32_i64 0
-#define TCG_TARGET_HAS_bswap64_i64 0
+#define TCG_TARGET_HAS_bswap16_i64 1
+#define TCG_TARGET_HAS_bswap32_i64 1
+#define TCG_TARGET_HAS_bswap64_i64 1
#define TCG_TARGET_HAS_not_i64 1
#define TCG_TARGET_HAS_neg_i64 0
#define TCG_TARGET_HAS_andc_i64 1
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 15/30] tcg/loongarch64: Implement clz/ctz ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (13 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 14/30] tcg/loongarch64: Implement bswap{16,32,64} ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 16/30] tcg/loongarch64: Implement shl/shr/sar/rotl/rotr ops WANG Xuerui
` (14 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 42 ++++++++++++++++++++++++++++
tcg/loongarch64/tcg-target.h | 8 +++---
3 files changed, 47 insertions(+), 4 deletions(-)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index d958183020..2975e03127 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -18,4 +18,5 @@ C_O0_I1(r)
C_O1_I1(r, r)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, rU)
+C_O1_I2(r, r, rW)
C_O1_I2(r, 0, rZ)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index ce6843b408..5b529b52ad 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -386,6 +386,28 @@ static void tcg_out_ext32s(TCGContext *s, TCGReg ret, TCGReg arg)
tcg_out_opc_addi_w(s, ret, arg, 0);
}
+static void tcg_out_clzctz(TCGContext *s, LoongArchInsn opc,
+ TCGReg a0, TCGReg a1, TCGReg a2,
+ bool c2, bool is_32bit)
+{
+ if (c2) {
+ /*
+ * Fast path: semantics already satisfied due to constraint and
+ * insn behavior, single instruction is enough.
+ */
+ tcg_debug_assert(a2 == (is_32bit ? 32 : 64));
+ /* all clz/ctz insns belong to DJ-format */
+ tcg_out32(s, encode_dj_insn(opc, a0, a1));
+ return;
+ }
+
+ tcg_out32(s, encode_dj_insn(opc, TCG_REG_TMP0, a1));
+ /* a0 = a1 ? REG_TMP0 : a2 */
+ tcg_out_opc_maskeqz(s, TCG_REG_TMP0, TCG_REG_TMP0, a1);
+ tcg_out_opc_masknez(s, a0, a2, a1);
+ tcg_out_opc_or(s, a0, TCG_REG_TMP0, a0);
+}
+
/*
* Entry-points
*/
@@ -546,6 +568,20 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_opc_revb_d(s, a0, a1);
break;
+ case INDEX_op_clz_i32:
+ tcg_out_clzctz(s, OPC_CLZ_W, a0, a1, a2, c2, true);
+ break;
+ case INDEX_op_clz_i64:
+ tcg_out_clzctz(s, OPC_CLZ_D, a0, a1, a2, c2, false);
+ break;
+
+ case INDEX_op_ctz_i32:
+ tcg_out_clzctz(s, OPC_CTZ_W, a0, a1, a2, c2, true);
+ break;
+ case INDEX_op_ctz_i64:
+ tcg_out_clzctz(s, OPC_CTZ_D, a0, a1, a2, c2, false);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -606,6 +642,12 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
/* LoongArch reg-imm bitops have their imms ZERO-extended */
return C_O1_I2(r, r, rU);
+ case INDEX_op_clz_i32:
+ case INDEX_op_clz_i64:
+ case INDEX_op_ctz_i32:
+ case INDEX_op_ctz_i64:
+ return C_O1_I2(r, r, rW);
+
case INDEX_op_deposit_i32:
case INDEX_op_deposit_i64:
/* Must deposit into the same register as input */
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index 02d17d2f6d..ef489cbc86 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -120,8 +120,8 @@ typedef enum {
#define TCG_TARGET_HAS_eqv_i32 0
#define TCG_TARGET_HAS_nand_i32 0
#define TCG_TARGET_HAS_nor_i32 1
-#define TCG_TARGET_HAS_clz_i32 0
-#define TCG_TARGET_HAS_ctz_i32 0
+#define TCG_TARGET_HAS_clz_i32 1
+#define TCG_TARGET_HAS_ctz_i32 1
#define TCG_TARGET_HAS_ctpop_i32 0
#define TCG_TARGET_HAS_direct_jump 0
#define TCG_TARGET_HAS_brcond2 0
@@ -156,8 +156,8 @@ typedef enum {
#define TCG_TARGET_HAS_eqv_i64 0
#define TCG_TARGET_HAS_nand_i64 0
#define TCG_TARGET_HAS_nor_i64 1
-#define TCG_TARGET_HAS_clz_i64 0
-#define TCG_TARGET_HAS_ctz_i64 0
+#define TCG_TARGET_HAS_clz_i64 1
+#define TCG_TARGET_HAS_ctz_i64 1
#define TCG_TARGET_HAS_ctpop_i64 0
#define TCG_TARGET_HAS_add2_i64 0
#define TCG_TARGET_HAS_sub2_i64 0
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 16/30] tcg/loongarch64: Implement shl/shr/sar/rotl/rotr ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (14 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 15/30] tcg/loongarch64: Implement clz/ctz ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 17/30] tcg/loongarch64: Implement add/sub ops WANG Xuerui
` (13 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 91 ++++++++++++++++++++++++++++
tcg/loongarch64/tcg-target.h | 4 +-
3 files changed, 94 insertions(+), 2 deletions(-)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index 2975e03127..42f8e28741 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -17,6 +17,7 @@
C_O0_I1(r)
C_O1_I1(r, r)
C_O1_I2(r, r, rC)
+C_O1_I2(r, r, ri)
C_O1_I2(r, r, rU)
C_O1_I2(r, r, rW)
C_O1_I2(r, 0, rZ)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 5b529b52ad..e3b0958318 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -582,6 +582,85 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_clzctz(s, OPC_CTZ_D, a0, a1, a2, c2, false);
break;
+ case INDEX_op_shl_i32:
+ if (c2) {
+ tcg_out_opc_slli_w(s, a0, a1, a2 & 0x1f);
+ } else {
+ tcg_out_opc_sll_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_shl_i64:
+ if (c2) {
+ tcg_out_opc_slli_d(s, a0, a1, a2 & 0x3f);
+ } else {
+ tcg_out_opc_sll_d(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_shr_i32:
+ if (c2) {
+ tcg_out_opc_srli_w(s, a0, a1, a2 & 0x1f);
+ } else {
+ tcg_out_opc_srl_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_shr_i64:
+ if (c2) {
+ tcg_out_opc_srli_d(s, a0, a1, a2 & 0x3f);
+ } else {
+ tcg_out_opc_srl_d(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_sar_i32:
+ if (c2) {
+ tcg_out_opc_srai_w(s, a0, a1, a2 & 0x1f);
+ } else {
+ tcg_out_opc_sra_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_sar_i64:
+ if (c2) {
+ tcg_out_opc_srai_d(s, a0, a1, a2 & 0x3f);
+ } else {
+ tcg_out_opc_sra_d(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_rotl_i32:
+ /* transform into equivalent rotr/rotri */
+ if (c2) {
+ tcg_out_opc_rotri_w(s, a0, a1, (32 - a2) & 0x1f);
+ } else {
+ tcg_out_opc_sub_w(s, TCG_REG_TMP0, TCG_REG_ZERO, a2);
+ tcg_out_opc_rotr_w(s, a0, a1, TCG_REG_TMP0);
+ }
+ break;
+ case INDEX_op_rotl_i64:
+ /* transform into equivalent rotr/rotri */
+ if (c2) {
+ tcg_out_opc_rotri_d(s, a0, a1, (64 - a2) & 0x3f);
+ } else {
+ tcg_out_opc_sub_w(s, TCG_REG_TMP0, TCG_REG_ZERO, a2);
+ tcg_out_opc_rotr_d(s, a0, a1, TCG_REG_TMP0);
+ }
+ break;
+
+ case INDEX_op_rotr_i32:
+ if (c2) {
+ tcg_out_opc_rotri_w(s, a0, a1, a2 & 0x1f);
+ } else {
+ tcg_out_opc_rotr_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_rotr_i64:
+ if (c2) {
+ tcg_out_opc_rotri_d(s, a0, a1, a2 & 0x3f);
+ } else {
+ tcg_out_opc_rotr_d(s, a0, a1, a2);
+ }
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -631,6 +710,18 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
*/
return C_O1_I2(r, r, rC);
+ case INDEX_op_shl_i32:
+ case INDEX_op_shl_i64:
+ case INDEX_op_shr_i32:
+ case INDEX_op_shr_i64:
+ case INDEX_op_sar_i32:
+ case INDEX_op_sar_i64:
+ case INDEX_op_rotl_i32:
+ case INDEX_op_rotl_i64:
+ case INDEX_op_rotr_i32:
+ case INDEX_op_rotr_i64:
+ return C_O1_I2(r, r, ri);
+
case INDEX_op_and_i32:
case INDEX_op_and_i64:
case INDEX_op_nor_i32:
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index ef489cbc86..e59c2a7bec 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -96,7 +96,7 @@ typedef enum {
#define TCG_TARGET_HAS_div_i32 0
#define TCG_TARGET_HAS_rem_i32 0
#define TCG_TARGET_HAS_div2_i32 0
-#define TCG_TARGET_HAS_rot_i32 0
+#define TCG_TARGET_HAS_rot_i32 1
#define TCG_TARGET_HAS_deposit_i32 1
#define TCG_TARGET_HAS_extract_i32 1
#define TCG_TARGET_HAS_sextract_i32 0
@@ -133,7 +133,7 @@ typedef enum {
#define TCG_TARGET_HAS_div_i64 0
#define TCG_TARGET_HAS_rem_i64 0
#define TCG_TARGET_HAS_div2_i64 0
-#define TCG_TARGET_HAS_rot_i64 0
+#define TCG_TARGET_HAS_rot_i64 1
#define TCG_TARGET_HAS_deposit_i64 1
#define TCG_TARGET_HAS_extract_i64 1
#define TCG_TARGET_HAS_sextract_i64 0
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 17/30] tcg/loongarch64: Implement add/sub ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (15 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 16/30] tcg/loongarch64: Implement shl/shr/sar/rotl/rotr ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 18/30] tcg/loongarch64: Implement mul/mulsh/muluh/div/divu/rem/remu ops WANG Xuerui
` (12 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
The neg_i{32,64} ops is fully expressible with sub, so omitted for
simplicity.
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 2 ++
tcg/loongarch64/tcg-target.c.inc | 38 ++++++++++++++++++++++++++++
2 files changed, 40 insertions(+)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index 42f8e28741..4b8ce85897 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -18,6 +18,8 @@ C_O0_I1(r)
C_O1_I1(r, r)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, ri)
+C_O1_I2(r, r, rI)
C_O1_I2(r, r, rU)
C_O1_I2(r, r, rW)
C_O1_I2(r, 0, rZ)
+C_O1_I2(r, rZ, rN)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index e3b0958318..b389052180 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -661,6 +661,36 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
}
break;
+ case INDEX_op_add_i32:
+ if (c2) {
+ tcg_out_opc_addi_w(s, a0, a1, a2);
+ } else {
+ tcg_out_opc_add_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_add_i64:
+ if (c2) {
+ tcg_out_opc_addi_d(s, a0, a1, a2);
+ } else {
+ tcg_out_opc_add_d(s, a0, a1, a2);
+ }
+ break;
+
+ case INDEX_op_sub_i32:
+ if (c2) {
+ tcg_out_opc_addi_w(s, a0, a1, -a2);
+ } else {
+ tcg_out_opc_sub_w(s, a0, a1, a2);
+ }
+ break;
+ case INDEX_op_sub_i64:
+ if (c2) {
+ tcg_out_opc_addi_d(s, a0, a1, -a2);
+ } else {
+ tcg_out_opc_sub_d(s, a0, a1, a2);
+ }
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -722,6 +752,10 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_rotr_i64:
return C_O1_I2(r, r, ri);
+ case INDEX_op_add_i32:
+ case INDEX_op_add_i64:
+ return C_O1_I2(r, r, rI);
+
case INDEX_op_and_i32:
case INDEX_op_and_i64:
case INDEX_op_nor_i32:
@@ -744,6 +778,10 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
/* Must deposit into the same register as input */
return C_O1_I2(r, 0, rZ);
+ case INDEX_op_sub_i32:
+ case INDEX_op_sub_i64:
+ return C_O1_I2(r, rZ, rN);
+
default:
g_assert_not_reached();
}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 18/30] tcg/loongarch64: Implement mul/mulsh/muluh/div/divu/rem/remu ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (16 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 17/30] tcg/loongarch64: Implement add/sub ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 19/30] tcg/loongarch64: Implement br/brcond ops WANG Xuerui
` (11 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 65 ++++++++++++++++++++++++++++
tcg/loongarch64/tcg-target.h | 16 +++----
3 files changed, 74 insertions(+), 8 deletions(-)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index 4b8ce85897..fb56f3a295 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -23,3 +23,4 @@ C_O1_I2(r, r, rU)
C_O1_I2(r, r, rW)
C_O1_I2(r, 0, rZ)
C_O1_I2(r, rZ, rN)
+C_O1_I2(r, rZ, rZ)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index b389052180..a92f50b165 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -691,6 +691,55 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
}
break;
+ case INDEX_op_mul_i32:
+ tcg_out_opc_mul_w(s, a0, a1, a2);
+ break;
+ case INDEX_op_mul_i64:
+ tcg_out_opc_mul_d(s, a0, a1, a2);
+ break;
+
+ case INDEX_op_mulsh_i32:
+ tcg_out_opc_mulh_w(s, a0, a1, a2);
+ break;
+ case INDEX_op_mulsh_i64:
+ tcg_out_opc_mulh_d(s, a0, a1, a2);
+ break;
+
+ case INDEX_op_muluh_i32:
+ tcg_out_opc_mulh_wu(s, a0, a1, a2);
+ break;
+ case INDEX_op_muluh_i64:
+ tcg_out_opc_mulh_du(s, a0, a1, a2);
+ break;
+
+ case INDEX_op_div_i32:
+ tcg_out_opc_div_w(s, a0, a1, a2);
+ break;
+ case INDEX_op_div_i64:
+ tcg_out_opc_div_d(s, a0, a1, a2);
+ break;
+
+ case INDEX_op_divu_i32:
+ tcg_out_opc_div_wu(s, a0, a1, a2);
+ break;
+ case INDEX_op_divu_i64:
+ tcg_out_opc_div_du(s, a0, a1, a2);
+ break;
+
+ case INDEX_op_rem_i32:
+ tcg_out_opc_mod_w(s, a0, a1, a2);
+ break;
+ case INDEX_op_rem_i64:
+ tcg_out_opc_mod_d(s, a0, a1, a2);
+ break;
+
+ case INDEX_op_remu_i32:
+ tcg_out_opc_mod_wu(s, a0, a1, a2);
+ break;
+ case INDEX_op_remu_i64:
+ tcg_out_opc_mod_du(s, a0, a1, a2);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -782,6 +831,22 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_sub_i64:
return C_O1_I2(r, rZ, rN);
+ case INDEX_op_mul_i32:
+ case INDEX_op_mul_i64:
+ case INDEX_op_mulsh_i32:
+ case INDEX_op_mulsh_i64:
+ case INDEX_op_muluh_i32:
+ case INDEX_op_muluh_i64:
+ case INDEX_op_div_i32:
+ case INDEX_op_div_i64:
+ case INDEX_op_divu_i32:
+ case INDEX_op_divu_i64:
+ case INDEX_op_rem_i32:
+ case INDEX_op_rem_i64:
+ case INDEX_op_remu_i32:
+ case INDEX_op_remu_i64:
+ return C_O1_I2(r, rZ, rZ);
+
default:
g_assert_not_reached();
}
diff --git a/tcg/loongarch64/tcg-target.h b/tcg/loongarch64/tcg-target.h
index e59c2a7bec..2ac2c342c7 100644
--- a/tcg/loongarch64/tcg-target.h
+++ b/tcg/loongarch64/tcg-target.h
@@ -93,8 +93,8 @@ typedef enum {
/* optional instructions */
#define TCG_TARGET_HAS_movcond_i32 0
-#define TCG_TARGET_HAS_div_i32 0
-#define TCG_TARGET_HAS_rem_i32 0
+#define TCG_TARGET_HAS_div_i32 1
+#define TCG_TARGET_HAS_rem_i32 1
#define TCG_TARGET_HAS_div2_i32 0
#define TCG_TARGET_HAS_rot_i32 1
#define TCG_TARGET_HAS_deposit_i32 1
@@ -105,8 +105,8 @@ typedef enum {
#define TCG_TARGET_HAS_sub2_i32 0
#define TCG_TARGET_HAS_mulu2_i32 0
#define TCG_TARGET_HAS_muls2_i32 0
-#define TCG_TARGET_HAS_muluh_i32 0
-#define TCG_TARGET_HAS_mulsh_i32 0
+#define TCG_TARGET_HAS_muluh_i32 1
+#define TCG_TARGET_HAS_mulsh_i32 1
#define TCG_TARGET_HAS_ext8s_i32 1
#define TCG_TARGET_HAS_ext16s_i32 1
#define TCG_TARGET_HAS_ext8u_i32 1
@@ -130,8 +130,8 @@ typedef enum {
/* 64-bit operations */
#define TCG_TARGET_HAS_movcond_i64 0
-#define TCG_TARGET_HAS_div_i64 0
-#define TCG_TARGET_HAS_rem_i64 0
+#define TCG_TARGET_HAS_div_i64 1
+#define TCG_TARGET_HAS_rem_i64 1
#define TCG_TARGET_HAS_div2_i64 0
#define TCG_TARGET_HAS_rot_i64 1
#define TCG_TARGET_HAS_deposit_i64 1
@@ -163,8 +163,8 @@ typedef enum {
#define TCG_TARGET_HAS_sub2_i64 0
#define TCG_TARGET_HAS_mulu2_i64 0
#define TCG_TARGET_HAS_muls2_i64 0
-#define TCG_TARGET_HAS_muluh_i64 0
-#define TCG_TARGET_HAS_mulsh_i64 0
+#define TCG_TARGET_HAS_muluh_i64 1
+#define TCG_TARGET_HAS_mulsh_i64 1
/* not defined -- call should be eliminated at compile time */
void tb_target_set_jmp_target(uintptr_t, uintptr_t, uintptr_t, uintptr_t);
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 19/30] tcg/loongarch64: Implement br/brcond ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (17 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 18/30] tcg/loongarch64: Implement mul/mulsh/muluh/div/divu/rem/remu ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 20/30] tcg/loongarch64: Implement setcond ops WANG Xuerui
` (10 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 53 ++++++++++++++++++++++++++++
2 files changed, 54 insertions(+)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index fb56f3a295..367689c2e2 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -15,6 +15,7 @@
* tcg-target-con-str.h; the constraint combination is inclusive or.
*/
C_O0_I1(r)
+C_O0_I2(rZ, rZ)
C_O1_I1(r, r)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, ri)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index a92f50b165..f081388d2d 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -408,6 +408,44 @@ static void tcg_out_clzctz(TCGContext *s, LoongArchInsn opc,
tcg_out_opc_or(s, a0, TCG_REG_TMP0, a0);
}
+/*
+ * Branch helpers
+ */
+
+static const struct {
+ LoongArchInsn op;
+ bool swap;
+} tcg_brcond_to_loongarch[] = {
+ [TCG_COND_EQ] = { OPC_BEQ, false },
+ [TCG_COND_NE] = { OPC_BNE, false },
+ [TCG_COND_LT] = { OPC_BGT, true },
+ [TCG_COND_GE] = { OPC_BLE, true },
+ [TCG_COND_LE] = { OPC_BLE, false },
+ [TCG_COND_GT] = { OPC_BGT, false },
+ [TCG_COND_LTU] = { OPC_BGTU, true },
+ [TCG_COND_GEU] = { OPC_BLEU, true },
+ [TCG_COND_LEU] = { OPC_BLEU, false },
+ [TCG_COND_GTU] = { OPC_BGTU, false }
+};
+
+static void tcg_out_brcond(TCGContext *s, TCGCond cond, TCGReg arg1,
+ TCGReg arg2, TCGLabel *l)
+{
+ LoongArchInsn op = tcg_brcond_to_loongarch[cond].op;
+
+ tcg_debug_assert(op != 0);
+
+ if (tcg_brcond_to_loongarch[cond].swap) {
+ TCGReg t = arg1;
+ arg1 = arg2;
+ arg2 = t;
+ }
+
+ /* all conditional branch insns belong to DJSk16-format */
+ tcg_out_reloc(s, s->code_ptr, R_LOONGARCH_BR_SK16, l, 0);
+ tcg_out32(s, encode_djsk16_insn(op, arg1, arg2, 0));
+}
+
/*
* Entry-points
*/
@@ -430,6 +468,17 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_opc_jirl(s, TCG_REG_ZERO, a0, 0);
break;
+ case INDEX_op_br:
+ tcg_out_reloc(s, s->code_ptr, R_LOONGARCH_BR_SD10K16, arg_label(a0),
+ 0);
+ tcg_out_opc_b(s, 0);
+ break;
+
+ case INDEX_op_brcond_i32:
+ case INDEX_op_brcond_i64:
+ tcg_out_brcond(s, a2, a0, a1, arg_label(args[3]));
+ break;
+
case INDEX_op_ext8s_i32:
case INDEX_op_ext8s_i64:
tcg_out_ext8s(s, a0, a1);
@@ -753,6 +802,10 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_goto_ptr:
return C_O0_I1(r);
+ case INDEX_op_brcond_i32:
+ case INDEX_op_brcond_i64:
+ return C_O0_I2(rZ, rZ);
+
case INDEX_op_ext8s_i32:
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 20/30] tcg/loongarch64: Implement setcond ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (18 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 19/30] tcg/loongarch64: Implement br/brcond ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 21/30] tcg/loongarch64: Implement tcg_out_call WANG Xuerui
` (9 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 69 ++++++++++++++++++++++++++++
2 files changed, 70 insertions(+)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index 367689c2e2..a2ec61237e 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -22,6 +22,7 @@ C_O1_I2(r, r, ri)
C_O1_I2(r, r, rI)
C_O1_I2(r, r, rU)
C_O1_I2(r, r, rW)
+C_O1_I2(r, r, rZ)
C_O1_I2(r, 0, rZ)
C_O1_I2(r, rZ, rN)
C_O1_I2(r, rZ, rZ)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index f081388d2d..3f12fbeb78 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -408,6 +408,66 @@ static void tcg_out_clzctz(TCGContext *s, LoongArchInsn opc,
tcg_out_opc_or(s, a0, TCG_REG_TMP0, a0);
}
+static void tcg_out_setcond(TCGContext *s, TCGCond cond, TCGReg ret,
+ TCGReg arg1, TCGReg arg2, bool c2)
+{
+ TCGReg tmp;
+
+ if (c2) {
+ tcg_debug_assert(arg2 == 0);
+ }
+
+ switch (cond) {
+ case TCG_COND_EQ:
+ if (c2) {
+ tmp = arg1;
+ } else {
+ tcg_out_opc_sub_d(s, ret, arg1, arg2);
+ tmp = ret;
+ }
+ tcg_out_opc_sltui(s, ret, tmp, 1);
+ break;
+ case TCG_COND_NE:
+ if (c2) {
+ tmp = arg1;
+ } else {
+ tcg_out_opc_sub_d(s, ret, arg1, arg2);
+ tmp = ret;
+ }
+ tcg_out_opc_sltu(s, ret, TCG_REG_ZERO, tmp);
+ break;
+ case TCG_COND_LT:
+ tcg_out_opc_slt(s, ret, arg1, arg2);
+ break;
+ case TCG_COND_GE:
+ tcg_out_opc_slt(s, ret, arg1, arg2);
+ tcg_out_opc_xori(s, ret, ret, 1);
+ break;
+ case TCG_COND_LE:
+ tcg_out_setcond(s, TCG_COND_GE, ret, arg2, arg1, false);
+ break;
+ case TCG_COND_GT:
+ tcg_out_setcond(s, TCG_COND_LT, ret, arg2, arg1, false);
+ break;
+ case TCG_COND_LTU:
+ tcg_out_opc_sltu(s, ret, arg1, arg2);
+ break;
+ case TCG_COND_GEU:
+ tcg_out_opc_sltu(s, ret, arg1, arg2);
+ tcg_out_opc_xori(s, ret, ret, 1);
+ break;
+ case TCG_COND_LEU:
+ tcg_out_setcond(s, TCG_COND_GEU, ret, arg2, arg1, false);
+ break;
+ case TCG_COND_GTU:
+ tcg_out_setcond(s, TCG_COND_LTU, ret, arg2, arg1, false);
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
+}
+
/*
* Branch helpers
*/
@@ -789,6 +849,11 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_opc_mod_du(s, a0, a1, a2);
break;
+ case INDEX_op_setcond_i32:
+ case INDEX_op_setcond_i64:
+ tcg_out_setcond(s, args[3], a0, a1, a2, c2);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
default:
@@ -875,6 +940,10 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_ctz_i64:
return C_O1_I2(r, r, rW);
+ case INDEX_op_setcond_i32:
+ case INDEX_op_setcond_i64:
+ return C_O1_I2(r, r, rZ);
+
case INDEX_op_deposit_i32:
case INDEX_op_deposit_i64:
/* Must deposit into the same register as input */
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 21/30] tcg/loongarch64: Implement tcg_out_call
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (19 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 20/30] tcg/loongarch64: Implement setcond ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 22/30] tcg/loongarch64: Implement simple load/store ops WANG Xuerui
` (8 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 34 ++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 3f12fbeb78..6a374c1941 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -506,6 +506,39 @@ static void tcg_out_brcond(TCGContext *s, TCGCond cond, TCGReg arg1,
tcg_out32(s, encode_djsk16_insn(op, arg1, arg2, 0));
}
+static void tcg_out_call_int(TCGContext *s, const tcg_insn_unit *arg, bool tail)
+{
+ TCGReg link = tail ? TCG_REG_ZERO : TCG_REG_RA;
+ ptrdiff_t offset = tcg_pcrel_diff(s, arg);
+
+ tcg_debug_assert((offset & 3) == 0);
+ if (offset == sextreg(offset, 0, 28)) {
+ /* short jump: +/- 256MiB */
+ if (tail) {
+ tcg_out_opc_b(s, offset >> 2);
+ } else {
+ tcg_out_opc_bl(s, offset >> 2);
+ }
+ } else if (offset == sextreg(offset, 0, 38)) {
+ /* long jump: +/- 256GiB */
+ tcg_target_long lo = sextreg(offset, 0, 18);
+ tcg_target_long hi = offset - lo;
+ tcg_out_opc_pcaddu18i(s, TCG_REG_TMP0, hi >> 18);
+ tcg_out_opc_jirl(s, link, TCG_REG_TMP0, lo >> 2);
+ } else {
+ /* far jump: 64-bit */
+ tcg_target_long lo = sextreg((tcg_target_long)arg, 0, 18);
+ tcg_target_long hi = (tcg_target_long)arg - lo;
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP0, hi);
+ tcg_out_opc_jirl(s, link, TCG_REG_TMP0, lo >> 2);
+ }
+}
+
+static void tcg_out_call(TCGContext *s, const tcg_insn_unit *arg)
+{
+ tcg_out_call_int(s, arg, false);
+}
+
/*
* Entry-points
*/
@@ -856,6 +889,7 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
+ case INDEX_op_call: /* Always emitted via tcg_out_call. */
default:
g_assert_not_reached();
}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 22/30] tcg/loongarch64: Implement simple load/store ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (20 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 21/30] tcg/loongarch64: Implement tcg_out_call WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 23/30] tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops WANG Xuerui
` (7 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target-con-set.h | 1 +
tcg/loongarch64/tcg-target.c.inc | 131 +++++++++++++++++++++++++++
2 files changed, 132 insertions(+)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index a2ec61237e..e54ca9b2de 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -15,6 +15,7 @@
* tcg-target-con-str.h; the constraint combination is inclusive or.
*/
C_O0_I1(r)
+C_O0_I2(rZ, r)
C_O0_I2(rZ, rZ)
C_O1_I1(r, r)
C_O1_I2(r, r, rC)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 6a374c1941..1f6bad95ce 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -539,6 +539,73 @@ static void tcg_out_call(TCGContext *s, const tcg_insn_unit *arg)
tcg_out_call_int(s, arg, false);
}
+/*
+ * Load/store helpers
+ */
+
+static void tcg_out_ldst(TCGContext *s, LoongArchInsn opc, TCGReg data,
+ TCGReg addr, intptr_t offset)
+{
+ intptr_t imm12 = sextreg(offset, 0, 12);
+
+ if (offset != imm12) {
+ intptr_t diff = offset - (uintptr_t)s->code_ptr;
+
+ if (addr == TCG_REG_ZERO && diff == (int32_t)diff) {
+ imm12 = sextreg(diff, 0, 12);
+ tcg_out_opc_pcaddu12i(s, TCG_REG_TMP2, (diff - imm12) >> 12);
+ } else {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_TMP2, offset - imm12);
+ if (addr != TCG_REG_ZERO) {
+ tcg_out_opc_add_d(s, TCG_REG_TMP2, TCG_REG_TMP2, addr);
+ }
+ }
+ addr = TCG_REG_TMP2;
+ }
+
+ switch (opc) {
+ case OPC_LD_B:
+ case OPC_LD_BU:
+ case OPC_LD_H:
+ case OPC_LD_HU:
+ case OPC_LD_W:
+ case OPC_LD_WU:
+ case OPC_LD_D:
+ case OPC_ST_B:
+ case OPC_ST_H:
+ case OPC_ST_W:
+ case OPC_ST_D:
+ tcg_out32(s, encode_djsk12_insn(opc, data, addr, imm12));
+ break;
+ default:
+ g_assert_not_reached();
+ }
+}
+
+static void tcg_out_ld(TCGContext *s, TCGType type, TCGReg arg,
+ TCGReg arg1, intptr_t arg2)
+{
+ bool is_32bit = type == TCG_TYPE_I32;
+ tcg_out_ldst(s, is_32bit ? OPC_LD_W : OPC_LD_D, arg, arg1, arg2);
+}
+
+static void tcg_out_st(TCGContext *s, TCGType type, TCGReg arg,
+ TCGReg arg1, intptr_t arg2)
+{
+ bool is_32bit = type == TCG_TYPE_I32;
+ tcg_out_ldst(s, is_32bit ? OPC_ST_W : OPC_ST_D, arg, arg1, arg2);
+}
+
+static bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val,
+ TCGReg base, intptr_t ofs)
+{
+ if (val == 0) {
+ tcg_out_st(s, type, TCG_REG_ZERO, base, ofs);
+ return true;
+ }
+ return false;
+}
+
/*
* Entry-points
*/
@@ -887,6 +954,49 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_setcond(s, args[3], a0, a1, a2, c2);
break;
+ case INDEX_op_ld8s_i32:
+ case INDEX_op_ld8s_i64:
+ tcg_out_ldst(s, OPC_LD_B, a0, a1, a2);
+ break;
+ case INDEX_op_ld8u_i32:
+ case INDEX_op_ld8u_i64:
+ tcg_out_ldst(s, OPC_LD_BU, a0, a1, a2);
+ break;
+ case INDEX_op_ld16s_i32:
+ case INDEX_op_ld16s_i64:
+ tcg_out_ldst(s, OPC_LD_H, a0, a1, a2);
+ break;
+ case INDEX_op_ld16u_i32:
+ case INDEX_op_ld16u_i64:
+ tcg_out_ldst(s, OPC_LD_HU, a0, a1, a2);
+ break;
+ case INDEX_op_ld_i32:
+ case INDEX_op_ld32s_i64:
+ tcg_out_ldst(s, OPC_LD_W, a0, a1, a2);
+ break;
+ case INDEX_op_ld32u_i64:
+ tcg_out_ldst(s, OPC_LD_WU, a0, a1, a2);
+ break;
+ case INDEX_op_ld_i64:
+ tcg_out_ldst(s, OPC_LD_D, a0, a1, a2);
+ break;
+
+ case INDEX_op_st8_i32:
+ case INDEX_op_st8_i64:
+ tcg_out_ldst(s, OPC_ST_B, a0, a1, a2);
+ break;
+ case INDEX_op_st16_i32:
+ case INDEX_op_st16_i64:
+ tcg_out_ldst(s, OPC_ST_H, a0, a1, a2);
+ break;
+ case INDEX_op_st_i32:
+ case INDEX_op_st32_i64:
+ tcg_out_ldst(s, OPC_ST_W, a0, a1, a2);
+ break;
+ case INDEX_op_st_i64:
+ tcg_out_ldst(s, OPC_ST_D, a0, a1, a2);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
case INDEX_op_call: /* Always emitted via tcg_out_call. */
@@ -901,6 +1011,15 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_goto_ptr:
return C_O0_I1(r);
+ case INDEX_op_st8_i32:
+ case INDEX_op_st8_i64:
+ case INDEX_op_st16_i32:
+ case INDEX_op_st16_i64:
+ case INDEX_op_st32_i64:
+ case INDEX_op_st_i32:
+ case INDEX_op_st_i64:
+ return C_O0_I2(rZ, r);
+
case INDEX_op_brcond_i32:
case INDEX_op_brcond_i64:
return C_O0_I2(rZ, rZ);
@@ -928,6 +1047,18 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_bswap32_i32:
case INDEX_op_bswap32_i64:
case INDEX_op_bswap64_i64:
+ case INDEX_op_ld8s_i32:
+ case INDEX_op_ld8s_i64:
+ case INDEX_op_ld8u_i32:
+ case INDEX_op_ld8u_i64:
+ case INDEX_op_ld16s_i32:
+ case INDEX_op_ld16s_i64:
+ case INDEX_op_ld16u_i32:
+ case INDEX_op_ld16u_i64:
+ case INDEX_op_ld32s_i64:
+ case INDEX_op_ld32u_i64:
+ case INDEX_op_ld_i32:
+ case INDEX_op_ld_i64:
return C_O1_I1(r, r);
case INDEX_op_andc_i32:
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 23/30] tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (21 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 22/30] tcg/loongarch64: Implement simple load/store ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-24 14:56 ` Richard Henderson
2021-09-23 16:59 ` [PATCH v4 24/30] tcg/loongarch64: Implement tcg_target_qemu_prologue WANG Xuerui
` (6 subsequent siblings)
29 siblings, 1 reply; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
---
tcg/loongarch64/tcg-target-con-set.h | 2 +
tcg/loongarch64/tcg-target.c.inc | 342 +++++++++++++++++++++++++++
2 files changed, 344 insertions(+)
diff --git a/tcg/loongarch64/tcg-target-con-set.h b/tcg/loongarch64/tcg-target-con-set.h
index e54ca9b2de..349c672687 100644
--- a/tcg/loongarch64/tcg-target-con-set.h
+++ b/tcg/loongarch64/tcg-target-con-set.h
@@ -17,7 +17,9 @@
C_O0_I1(r)
C_O0_I2(rZ, r)
C_O0_I2(rZ, rZ)
+C_O0_I2(LZ, L)
C_O1_I1(r, r)
+C_O1_I1(r, L)
C_O1_I2(r, r, rC)
C_O1_I2(r, r, ri)
C_O1_I2(r, r, rI)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 1f6bad95ce..09ec560a72 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -117,6 +117,11 @@ static const int tcg_target_call_oarg_regs[] = {
TCG_REG_A1,
};
+#ifndef CONFIG_SOFTMMU
+#define USE_GUEST_BASE (guest_base != 0)
+#define TCG_GUEST_BASE_REG TCG_REG_S1
+#endif
+
#define TCG_CT_CONST_ZERO 0x100
#define TCG_CT_CONST_S12 0x200
#define TCG_CT_CONST_N12 0x400
@@ -606,6 +611,322 @@ static bool tcg_out_sti(TCGContext *s, TCGType type, TCGArg val,
return false;
}
+/*
+ * Load/store helpers for SoftMMU, and qemu_ld/st implementations
+ */
+
+#if defined(CONFIG_SOFTMMU)
+#include "../tcg-ldst.c.inc"
+
+/*
+ * helper signature: helper_ret_ld_mmu(CPUState *env, target_ulong addr,
+ * TCGMemOpIdx oi, uintptr_t ra)
+ */
+static void * const qemu_ld_helpers[4] = {
+ [MO_8] = helper_ret_ldub_mmu,
+ [MO_16] = helper_le_lduw_mmu,
+ [MO_32] = helper_le_ldul_mmu,
+ [MO_64] = helper_le_ldq_mmu,
+};
+
+/*
+ * helper signature: helper_ret_st_mmu(CPUState *env, target_ulong addr,
+ * uintxx_t val, TCGMemOpIdx oi,
+ * uintptr_t ra)
+ */
+static void * const qemu_st_helpers[4] = {
+ [MO_8] = helper_ret_stb_mmu,
+ [MO_16] = helper_le_stw_mmu,
+ [MO_32] = helper_le_stl_mmu,
+ [MO_64] = helper_le_stq_mmu,
+};
+
+/* We expect to use a 12-bit negative offset from ENV. */
+QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) > 0);
+QEMU_BUILD_BUG_ON(TLB_MASK_TABLE_OFS(0) < -(1 << 11));
+
+static bool tcg_out_goto(TCGContext *s, const tcg_insn_unit *target)
+{
+ tcg_out_opc_b(s, 0);
+ return reloc_br_sd10k16(s->code_ptr - 1, target);
+}
+
+static void tcg_out_tlb_load(TCGContext *s, TCGReg addrl, TCGMemOpIdx oi,
+ tcg_insn_unit **label_ptr, bool is_load)
+{
+ MemOp opc = get_memop(oi);
+ unsigned s_bits = opc & MO_SIZE;
+ unsigned a_bits = get_alignment_bits(opc);
+ tcg_target_long compare_mask;
+ int mem_index = get_mmuidx(oi);
+ int fast_ofs = TLB_MASK_TABLE_OFS(mem_index);
+ int mask_ofs = fast_ofs + offsetof(CPUTLBDescFast, mask);
+ int table_ofs = fast_ofs + offsetof(CPUTLBDescFast, table);
+
+ tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP0, TCG_AREG0, mask_ofs);
+ tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP1, TCG_AREG0, table_ofs);
+
+ tcg_out_opc_srli_d(s, TCG_REG_TMP2, addrl,
+ TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS);
+ tcg_out_opc_and(s, TCG_REG_TMP2, TCG_REG_TMP2, TCG_REG_TMP0);
+ tcg_out_opc_add_d(s, TCG_REG_TMP2, TCG_REG_TMP2, TCG_REG_TMP1);
+
+ /* Load the tlb comparator and the addend. */
+ tcg_out_ld(s, TCG_TYPE_TL, TCG_REG_TMP0, TCG_REG_TMP2,
+ is_load ? offsetof(CPUTLBEntry, addr_read)
+ : offsetof(CPUTLBEntry, addr_write));
+ tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP2, TCG_REG_TMP2,
+ offsetof(CPUTLBEntry, addend));
+
+ /* We don't support unaligned accesses. */
+ if (a_bits < s_bits) {
+ a_bits = s_bits;
+ }
+ /* Clear the non-page, non-alignment bits from the address. */
+ compare_mask = (tcg_target_long)TARGET_PAGE_MASK | ((1 << a_bits) - 1);
+ tcg_out_movi(s, TCG_TYPE_TL, TCG_REG_TMP1, compare_mask);
+ tcg_out_opc_and(s, TCG_REG_TMP1, TCG_REG_TMP1, addrl);
+
+ /* Compare masked address with the TLB entry. */
+ label_ptr[0] = s->code_ptr;
+ tcg_out_opc_bne(s, TCG_REG_TMP0, TCG_REG_TMP1, 0);
+
+ /* TLB Hit - translate address using addend. */
+ if (TCG_TARGET_REG_BITS > TARGET_LONG_BITS) {
+ tcg_out_ext32u(s, TCG_REG_TMP0, addrl);
+ addrl = TCG_REG_TMP0;
+ }
+ tcg_out_opc_add_d(s, TCG_REG_TMP0, TCG_REG_TMP2, addrl);
+}
+
+static void add_qemu_ldst_label(TCGContext *s, int is_ld, TCGMemOpIdx oi,
+ TCGType type,
+ TCGReg datalo, TCGReg addrlo,
+ void *raddr, tcg_insn_unit **label_ptr)
+{
+ TCGLabelQemuLdst *label = new_ldst_label(s);
+
+ label->is_ld = is_ld;
+ label->oi = oi;
+ label->type = type;
+ label->datalo_reg = datalo;
+ label->datahi_reg = 0; /* unused */
+ label->addrlo_reg = addrlo;
+ label->addrhi_reg = 0; /* unused */
+ label->raddr = tcg_splitwx_to_rx(raddr);
+ label->label_ptr[0] = label_ptr[0];
+}
+
+static bool tcg_out_qemu_ld_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
+{
+ TCGMemOpIdx oi = l->oi;
+ MemOp opc = get_memop(oi);
+ MemOp size = opc & MO_SIZE;
+ TCGType type = l->type;
+
+ /* resolve label address */
+ if (!reloc_br_sk16(l->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) {
+ return false;
+ }
+
+ /* call load helper */
+ tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_A0, TCG_AREG0);
+ tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_A1, l->addrlo_reg);
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_A2, oi);
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_A3, (tcg_target_long)l->raddr);
+
+ tcg_out_call(s, qemu_ld_helpers[size]);
+
+ switch (opc & MO_SSIZE) {
+ case MO_SB:
+ tcg_out_ext8s(s, l->datalo_reg, TCG_REG_A0);
+ break;
+ case MO_SW:
+ tcg_out_ext16s(s, l->datalo_reg, TCG_REG_A0);
+ break;
+ case MO_SL:
+ tcg_out_ext32s(s, l->datalo_reg, TCG_REG_A0);
+ break;
+ case MO_UL:
+ if (type == TCG_TYPE_I32) {
+ /* MO_UL loads of i32 should be sign-extended too */
+ tcg_out_ext32s(s, l->datalo_reg, TCG_REG_A0);
+ break;
+ }
+ /* fallthrough */
+ default:
+ tcg_out_mov(s, size == MO_64, l->datalo_reg, TCG_REG_A0);
+ break;
+ }
+
+ return tcg_out_goto(s, l->raddr);
+}
+
+static bool tcg_out_qemu_st_slow_path(TCGContext *s, TCGLabelQemuLdst *l)
+{
+ TCGMemOpIdx oi = l->oi;
+ MemOp opc = get_memop(oi);
+ MemOp size = opc & MO_SIZE;
+
+ /* resolve label address */
+ if (!reloc_br_sk16(l->label_ptr[0], tcg_splitwx_to_rx(s->code_ptr))) {
+ return false;
+ }
+
+ /* call store helper */
+ tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_A0, TCG_AREG0);
+ tcg_out_mov(s, TCG_TYPE_PTR, TCG_REG_A1, l->addrlo_reg);
+ switch (size) {
+ case MO_8:
+ tcg_out_ext8u(s, TCG_REG_A2, l->datalo_reg);
+ break;
+ case MO_16:
+ tcg_out_ext16u(s, TCG_REG_A2, l->datalo_reg);
+ break;
+ case MO_32:
+ tcg_out_ext32u(s, TCG_REG_A2, l->datalo_reg);
+ break;
+ case MO_64:
+ tcg_out_mov(s, TCG_TYPE_I64, TCG_REG_A2, l->datalo_reg);
+ break;
+ default:
+ g_assert_not_reached();
+ break;
+ }
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_A3, oi);
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_A4, (tcg_target_long)l->raddr);
+
+ tcg_out_call(s, qemu_st_helpers[size]);
+
+ return tcg_out_goto(s, l->raddr);
+}
+#endif /* CONFIG_SOFTMMU */
+
+static void tcg_out_qemu_ld_direct(TCGContext *s, TCGReg lo, TCGReg base,
+ MemOp opc, TCGType type)
+{
+ /* Byte swapping is left to middle-end expansion. */
+ tcg_debug_assert((opc & MO_BSWAP) == 0);
+
+ switch (opc & MO_SSIZE) {
+ case MO_UB:
+ tcg_out_opc_ld_bu(s, lo, base, 0);
+ break;
+ case MO_SB:
+ tcg_out_opc_ld_b(s, lo, base, 0);
+ break;
+ case MO_UW:
+ tcg_out_opc_ld_hu(s, lo, base, 0);
+ break;
+ case MO_SW:
+ tcg_out_opc_ld_h(s, lo, base, 0);
+ break;
+ case MO_UL:
+ if (type == TCG_TYPE_I64) {
+ tcg_out_opc_ld_wu(s, lo, base, 0);
+ break;
+ }
+ /* fallthrough */
+ case MO_SL:
+ tcg_out_opc_ld_w(s, lo, base, 0);
+ break;
+ case MO_Q:
+ tcg_out_opc_ld_d(s, lo, base, 0);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+}
+
+static void tcg_out_qemu_ld(TCGContext *s, const TCGArg *args, TCGType type)
+{
+ TCGReg addr_regl;
+ TCGReg data_regl;
+ TCGMemOpIdx oi;
+ MemOp opc;
+#if defined(CONFIG_SOFTMMU)
+ tcg_insn_unit *label_ptr[1];
+#endif
+ TCGReg base = TCG_REG_TMP0;
+
+ data_regl = *args++;
+ addr_regl = *args++;
+ oi = *args++;
+ opc = get_memop(oi);
+
+#if defined(CONFIG_SOFTMMU)
+ tcg_out_tlb_load(s, addr_regl, oi, label_ptr, 1);
+ tcg_out_qemu_ld_direct(s, data_regl, base, opc, type);
+ add_qemu_ldst_label(s, 1, oi, type,
+ data_regl, addr_regl,
+ s->code_ptr, label_ptr);
+#else
+ if (USE_GUEST_BASE) {
+ tcg_out_opc_add_d(s, base, TCG_GUEST_BASE_REG, addr_regl);
+ } else {
+ base = addr_regl;
+ }
+ tcg_out_qemu_ld_direct(s, data_regl, base, opc, type);
+#endif
+}
+
+static void tcg_out_qemu_st_direct(TCGContext *s, TCGReg lo,
+ TCGReg base, MemOp opc)
+{
+ /* Byte swapping is left to middle-end expansion. */
+ tcg_debug_assert((opc & MO_BSWAP) == 0);
+
+ switch (opc & MO_SIZE) {
+ case MO_8:
+ tcg_out_opc_st_b(s, lo, base, 0);
+ break;
+ case MO_16:
+ tcg_out_opc_st_h(s, lo, base, 0);
+ break;
+ case MO_32:
+ tcg_out_opc_st_w(s, lo, base, 0);
+ break;
+ case MO_64:
+ tcg_out_opc_st_d(s, lo, base, 0);
+ break;
+ default:
+ g_assert_not_reached();
+ }
+}
+
+static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
+{
+ TCGReg addr_regl;
+ TCGReg data_regl;
+ TCGMemOpIdx oi;
+ MemOp opc;
+#if defined(CONFIG_SOFTMMU)
+ tcg_insn_unit *label_ptr[1];
+#endif
+ TCGReg base = TCG_REG_TMP0;
+
+ data_regl = *args++;
+ addr_regl = *args++;
+ oi = *args++;
+ opc = get_memop(oi);
+
+#if defined(CONFIG_SOFTMMU)
+ tcg_out_tlb_load(s, addr_regl, oi, label_ptr, 0);
+ tcg_out_qemu_st_direct(s, data_regl, base, opc);
+ add_qemu_ldst_label(s, 0, oi,
+ 0, /* type param is unused for stores */
+ data_regl, addr_regl,
+ s->code_ptr, label_ptr);
+#else
+ if (USE_GUEST_BASE) {
+ tcg_out_opc_add_d(s, base, TCG_GUEST_BASE_REG, addr_regl);
+ } else {
+ base = addr_regl;
+ }
+ tcg_out_qemu_st_direct(s, data_regl, base, opc);
+#endif
+}
+
/*
* Entry-points
*/
@@ -997,6 +1318,19 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
tcg_out_ldst(s, OPC_ST_D, a0, a1, a2);
break;
+ case INDEX_op_qemu_ld_i32:
+ tcg_out_qemu_ld(s, args, TCG_TYPE_I32);
+ break;
+ case INDEX_op_qemu_ld_i64:
+ tcg_out_qemu_ld(s, args, TCG_TYPE_I64);
+ break;
+ case INDEX_op_qemu_st_i32:
+ tcg_out_qemu_st(s, args);
+ break;
+ case INDEX_op_qemu_st_i64:
+ tcg_out_qemu_st(s, args);
+ break;
+
case INDEX_op_mov_i32: /* Always emitted via tcg_out_mov. */
case INDEX_op_mov_i64:
case INDEX_op_call: /* Always emitted via tcg_out_call. */
@@ -1024,6 +1358,10 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_brcond_i64:
return C_O0_I2(rZ, rZ);
+ case INDEX_op_qemu_st_i32:
+ case INDEX_op_qemu_st_i64:
+ return C_O0_I2(LZ, L);
+
case INDEX_op_ext8s_i32:
case INDEX_op_ext8s_i64:
case INDEX_op_ext8u_i32:
@@ -1061,6 +1399,10 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
case INDEX_op_ld_i64:
return C_O1_I1(r, r);
+ case INDEX_op_qemu_ld_i32:
+ case INDEX_op_qemu_ld_i64:
+ return C_O1_I1(r, L);
+
case INDEX_op_andc_i32:
case INDEX_op_andc_i64:
case INDEX_op_orc_i32:
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* Re: [PATCH v4 23/30] tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops
2021-09-23 16:59 ` [PATCH v4 23/30] tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops WANG Xuerui
@ 2021-09-24 14:56 ` Richard Henderson
2021-09-24 15:19 ` WANG Xuerui
0 siblings, 1 reply; 35+ messages in thread
From: Richard Henderson @ 2021-09-24 14:56 UTC (permalink / raw)
To: WANG Xuerui, qemu-devel
Cc: Peter Maydell, Philippe Mathieu-Daudé, Laurent Vivier
On 9/23/21 12:59 PM, WANG Xuerui wrote:
> + if (USE_GUEST_BASE) {
> + tcg_out_opc_add_d(s, base, TCG_GUEST_BASE_REG, addr_regl);
> + } else {
> + base = addr_regl;
> + }
> + tcg_out_qemu_ld_direct(s, data_regl, base, opc, type);
> +#endif
> +}
My last messages against v3 came too late:
Missing zero-extend of addr_regl for TARGET_LONG_BITS == 32.
r~
^ permalink raw reply [flat|nested] 35+ messages in thread* Re: [PATCH v4 23/30] tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops
2021-09-24 14:56 ` Richard Henderson
@ 2021-09-24 15:19 ` WANG Xuerui
0 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-24 15:19 UTC (permalink / raw)
To: Richard Henderson, qemu-devel
Cc: Peter Maydell, Philippe Mathieu-Daudé, Laurent Vivier
Hi Richard,
On 9/24/21 22:56, Richard Henderson wrote:
> On 9/23/21 12:59 PM, WANG Xuerui wrote:
>> + if (USE_GUEST_BASE) {
>> + tcg_out_opc_add_d(s, base, TCG_GUEST_BASE_REG, addr_regl);
>> + } else {
>> + base = addr_regl;
>> + }
>> + tcg_out_qemu_ld_direct(s, data_regl, base, opc, type);
>> +#endif
>> +}
>
> My last messages against v3 came too late:
> Missing zero-extend of addr_regl for TARGET_LONG_BITS == 32.
>
Actually that message arrived similarly late; no worries, I'll of course
fix everything in v5.
>
> r~
^ permalink raw reply [flat|nested] 35+ messages in thread
* [PATCH v4 24/30] tcg/loongarch64: Implement tcg_target_qemu_prologue
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (22 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 23/30] tcg/loongarch64: Add softmmu load/store helpers, implement qemu_ld/qemu_st ops WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 25/30] tcg/loongarch64: Implement exit_tb/goto_tb WANG Xuerui
` (5 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 68 ++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 09ec560a72..3cf9a4924b 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -931,6 +931,8 @@ static void tcg_out_qemu_st(TCGContext *s, const TCGArg *args)
* Entry-points
*/
+static const tcg_insn_unit *tb_ret_addr;
+
static void tcg_out_op(TCGContext *s, TCGOpcode opc,
const TCGArg args[TCG_MAX_OP_ARGS],
const int const_args[TCG_MAX_OP_ARGS])
@@ -1480,3 +1482,69 @@ static TCGConstraintSetIndex tcg_target_op_def(TCGOpcode op)
g_assert_not_reached();
}
}
+
+static const int tcg_target_callee_save_regs[] = {
+ TCG_REG_S0, /* used for the global env (TCG_AREG0) */
+ TCG_REG_S1,
+ TCG_REG_S2,
+ TCG_REG_S3,
+ TCG_REG_S4,
+ TCG_REG_S5,
+ TCG_REG_S6,
+ TCG_REG_S7,
+ TCG_REG_S8,
+ TCG_REG_S9,
+ TCG_REG_RA, /* should be last for ABI compliance */
+};
+
+/* Stack frame parameters. */
+#define REG_SIZE (TCG_TARGET_REG_BITS / 8)
+#define SAVE_SIZE ((int)ARRAY_SIZE(tcg_target_callee_save_regs) * REG_SIZE)
+#define TEMP_SIZE (CPU_TEMP_BUF_NLONGS * (int)sizeof(long))
+#define FRAME_SIZE ((TCG_STATIC_CALL_ARGS_SIZE + TEMP_SIZE + SAVE_SIZE \
+ + TCG_TARGET_STACK_ALIGN - 1) \
+ & -TCG_TARGET_STACK_ALIGN)
+#define SAVE_OFS (TCG_STATIC_CALL_ARGS_SIZE + TEMP_SIZE)
+
+/* We're expecting to be able to use an immediate for frame allocation. */
+QEMU_BUILD_BUG_ON(FRAME_SIZE > 0x7ff);
+
+/* Generate global QEMU prologue and epilogue code */
+static void tcg_target_qemu_prologue(TCGContext *s)
+{
+ int i;
+
+ tcg_set_frame(s, TCG_REG_SP, TCG_STATIC_CALL_ARGS_SIZE, TEMP_SIZE);
+
+ /* TB prologue */
+ tcg_out_opc_addi_d(s, TCG_REG_SP, TCG_REG_SP, -FRAME_SIZE);
+ for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); i++) {
+ tcg_out_st(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i],
+ TCG_REG_SP, SAVE_OFS + i * REG_SIZE);
+ }
+
+#if !defined(CONFIG_SOFTMMU)
+ if (USE_GUEST_BASE) {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_GUEST_BASE_REG, guest_base);
+ tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
+ }
+#endif
+
+ /* Call generated code */
+ tcg_out_mov(s, TCG_TYPE_PTR, TCG_AREG0, tcg_target_call_iarg_regs[0]);
+ tcg_out_opc_jirl(s, TCG_REG_ZERO, tcg_target_call_iarg_regs[1], 0);
+
+ /* Return path for goto_ptr. Set return value to 0 */
+ tcg_code_gen_epilogue = tcg_splitwx_to_rx(s->code_ptr);
+ tcg_out_mov(s, TCG_TYPE_REG, TCG_REG_A0, TCG_REG_ZERO);
+
+ /* TB epilogue */
+ tb_ret_addr = tcg_splitwx_to_rx(s->code_ptr);
+ for (i = 0; i < ARRAY_SIZE(tcg_target_callee_save_regs); i++) {
+ tcg_out_ld(s, TCG_TYPE_REG, tcg_target_callee_save_regs[i],
+ TCG_REG_SP, SAVE_OFS + i * REG_SIZE);
+ }
+
+ tcg_out_opc_addi_d(s, TCG_REG_SP, TCG_REG_SP, FRAME_SIZE);
+ tcg_out_opc_jirl(s, TCG_REG_ZERO, TCG_REG_RA, 0);
+}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 25/30] tcg/loongarch64: Implement exit_tb/goto_tb
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (23 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 24/30] tcg/loongarch64: Implement tcg_target_qemu_prologue WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 26/30] tcg/loongarch64: Implement tcg_target_init WANG Xuerui
` (4 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 3cf9a4924b..e09bf832bd 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -943,6 +943,25 @@ static void tcg_out_op(TCGContext *s, TCGOpcode opc,
int c2 = const_args[2];
switch (opc) {
+ case INDEX_op_exit_tb:
+ /* Reuse the zeroing that exists for goto_ptr. */
+ if (a0 == 0) {
+ tcg_out_call_int(s, tcg_code_gen_epilogue, true);
+ } else {
+ tcg_out_movi(s, TCG_TYPE_PTR, TCG_REG_A0, a0);
+ tcg_out_call_int(s, tb_ret_addr, true);
+ }
+ break;
+
+ case INDEX_op_goto_tb:
+ assert(s->tb_jmp_insn_offset == 0);
+ /* indirect jump method */
+ tcg_out_ld(s, TCG_TYPE_PTR, TCG_REG_TMP0, TCG_REG_ZERO,
+ (uintptr_t)(s->tb_jmp_target_addr + a0));
+ tcg_out_opc_jirl(s, TCG_REG_ZERO, TCG_REG_TMP0, 0);
+ set_jmp_reset_offset(s, a0);
+ break;
+
case INDEX_op_mb:
tcg_out_mb(s, a0);
break;
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 26/30] tcg/loongarch64: Implement tcg_target_init
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (24 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 25/30] tcg/loongarch64: Implement exit_tb/goto_tb WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 27/30] tcg/loongarch64: Register the JIT WANG Xuerui
` (3 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 27 +++++++++++++++++++++++++++
1 file changed, 27 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index e09bf832bd..83b8bcdfdf 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -1567,3 +1567,30 @@ static void tcg_target_qemu_prologue(TCGContext *s)
tcg_out_opc_addi_d(s, TCG_REG_SP, TCG_REG_SP, FRAME_SIZE);
tcg_out_opc_jirl(s, TCG_REG_ZERO, TCG_REG_RA, 0);
}
+
+static void tcg_target_init(TCGContext *s)
+{
+ tcg_target_available_regs[TCG_TYPE_I32] = ALL_GENERAL_REGS;
+ tcg_target_available_regs[TCG_TYPE_I64] = ALL_GENERAL_REGS;
+
+ tcg_target_call_clobber_regs = ALL_GENERAL_REGS;
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S0);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S1);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S2);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S3);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S4);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S5);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S6);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S7);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S8);
+ tcg_regset_reset_reg(tcg_target_call_clobber_regs, TCG_REG_S9);
+
+ s->reserved_regs = 0;
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_ZERO);
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP0);
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP1);
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_TMP2);
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_SP);
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_TP);
+ tcg_regset_set_reg(s->reserved_regs, TCG_REG_RESERVED);
+}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 27/30] tcg/loongarch64: Register the JIT
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (25 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 26/30] tcg/loongarch64: Implement tcg_target_init WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 28/30] linux-user: Add safe syscall handling for loongarch64 hosts WANG Xuerui
` (2 subsequent siblings)
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
tcg/loongarch64/tcg-target.c.inc | 44 ++++++++++++++++++++++++++++++++
1 file changed, 44 insertions(+)
diff --git a/tcg/loongarch64/tcg-target.c.inc b/tcg/loongarch64/tcg-target.c.inc
index 83b8bcdfdf..bce03a96d7 100644
--- a/tcg/loongarch64/tcg-target.c.inc
+++ b/tcg/loongarch64/tcg-target.c.inc
@@ -1594,3 +1594,47 @@ static void tcg_target_init(TCGContext *s)
tcg_regset_set_reg(s->reserved_regs, TCG_REG_TP);
tcg_regset_set_reg(s->reserved_regs, TCG_REG_RESERVED);
}
+
+typedef struct {
+ DebugFrameHeader h;
+ uint8_t fde_def_cfa[4];
+ uint8_t fde_reg_ofs[ARRAY_SIZE(tcg_target_callee_save_regs) * 2];
+} DebugFrame;
+
+#define ELF_HOST_MACHINE EM_LOONGARCH
+
+static const DebugFrame debug_frame = {
+ .h.cie.len = sizeof(DebugFrameCIE) - 4, /* length after .len member */
+ .h.cie.id = -1,
+ .h.cie.version = 1,
+ .h.cie.code_align = 1,
+ .h.cie.data_align = -(TCG_TARGET_REG_BITS / 8) & 0x7f, /* sleb128 */
+ .h.cie.return_column = TCG_REG_RA,
+
+ /* Total FDE size does not include the "len" member. */
+ .h.fde.len = sizeof(DebugFrame) - offsetof(DebugFrame, h.fde.cie_offset),
+
+ .fde_def_cfa = {
+ 12, TCG_REG_SP, /* DW_CFA_def_cfa sp, ... */
+ (FRAME_SIZE & 0x7f) | 0x80, /* ... uleb128 FRAME_SIZE */
+ (FRAME_SIZE >> 7)
+ },
+ .fde_reg_ofs = {
+ 0x80 + 23, 11, /* DW_CFA_offset, s0, -88 */
+ 0x80 + 24, 10, /* DW_CFA_offset, s1, -80 */
+ 0x80 + 25, 9, /* DW_CFA_offset, s2, -72 */
+ 0x80 + 26, 8, /* DW_CFA_offset, s3, -64 */
+ 0x80 + 27, 7, /* DW_CFA_offset, s4, -56 */
+ 0x80 + 28, 6, /* DW_CFA_offset, s5, -48 */
+ 0x80 + 29, 5, /* DW_CFA_offset, s6, -40 */
+ 0x80 + 30, 4, /* DW_CFA_offset, s7, -32 */
+ 0x80 + 31, 3, /* DW_CFA_offset, s8, -24 */
+ 0x80 + 22, 2, /* DW_CFA_offset, s9, -16 */
+ 0x80 + 1 , 1, /* DW_CFA_offset, ra, -8 */
+ }
+};
+
+void tcg_register_jit(const void *buf, size_t buf_size)
+{
+ tcg_register_jit_int(buf, buf_size, &debug_frame, sizeof(debug_frame));
+}
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 28/30] linux-user: Add safe syscall handling for loongarch64 hosts
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (26 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 27/30] tcg/loongarch64: Register the JIT WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 29/30] accel/tcg/user-exec: Implement CPU-specific signal handler " WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 30/30] configure, meson.build: Mark support " WANG Xuerui
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
linux-user/host/loongarch64/hostdep.h | 34 ++++++++
.../host/loongarch64/safe-syscall.inc.S | 80 +++++++++++++++++++
2 files changed, 114 insertions(+)
create mode 100644 linux-user/host/loongarch64/hostdep.h
create mode 100644 linux-user/host/loongarch64/safe-syscall.inc.S
diff --git a/linux-user/host/loongarch64/hostdep.h b/linux-user/host/loongarch64/hostdep.h
new file mode 100644
index 0000000000..e3d5fa703f
--- /dev/null
+++ b/linux-user/host/loongarch64/hostdep.h
@@ -0,0 +1,34 @@
+/*
+ * hostdep.h : things which are dependent on the host architecture
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#ifndef LOONGARCH64_HOSTDEP_H
+#define LOONGARCH64_HOSTDEP_H
+
+/* We have a safe-syscall.inc.S */
+#define HAVE_SAFE_SYSCALL
+
+#ifndef __ASSEMBLER__
+
+/* These are defined by the safe-syscall.inc.S file */
+extern char safe_syscall_start[];
+extern char safe_syscall_end[];
+
+/* Adjust the signal context to rewind out of safe-syscall if we're in it */
+static inline void rewind_if_in_safe_syscall(void *puc)
+{
+ ucontext_t *uc = puc;
+ unsigned long long *pcreg = &uc->uc_mcontext.__pc;
+
+ if (*pcreg > (uintptr_t)safe_syscall_start
+ && *pcreg < (uintptr_t)safe_syscall_end) {
+ *pcreg = (uintptr_t)safe_syscall_start;
+ }
+}
+
+#endif /* __ASSEMBLER__ */
+
+#endif
diff --git a/linux-user/host/loongarch64/safe-syscall.inc.S b/linux-user/host/loongarch64/safe-syscall.inc.S
new file mode 100644
index 0000000000..bb530248b3
--- /dev/null
+++ b/linux-user/host/loongarch64/safe-syscall.inc.S
@@ -0,0 +1,80 @@
+/*
+ * safe-syscall.inc.S : host-specific assembly fragment
+ * to handle signals occurring at the same time as system calls.
+ * This is intended to be included by linux-user/safe-syscall.S
+ *
+ * Ported to LoongArch by WANG Xuerui <git@xen0n.name>
+ *
+ * Based on safe-syscall.inc.S code for every other architecture,
+ * originally written by Richard Henderson <rth@twiddle.net>
+ * Copyright (C) 2018 Linaro, Inc.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+ .global safe_syscall_base
+ .global safe_syscall_start
+ .global safe_syscall_end
+ .type safe_syscall_base, @function
+ .type safe_syscall_start, @function
+ .type safe_syscall_end, @function
+
+ /*
+ * This is the entry point for making a system call. The calling
+ * convention here is that of a C varargs function with the
+ * first argument an 'int *' to the signal_pending flag, the
+ * second one the system call number (as a 'long'), and all further
+ * arguments being syscall arguments (also 'long').
+ * We return a long which is the syscall's return value, which
+ * may be negative-errno on failure. Conversion to the
+ * -1-and-errno-set convention is done by the calling wrapper.
+ */
+safe_syscall_base:
+ .cfi_startproc
+ /*
+ * The syscall calling convention is nearly the same as C:
+ * we enter with a0 == *signal_pending
+ * a1 == syscall number
+ * a2 ... a7 == syscall arguments
+ * and return the result in a0
+ * and the syscall instruction needs
+ * a7 == syscall number
+ * a0 ... a5 == syscall arguments
+ * and returns the result in a0
+ * Shuffle everything around appropriately.
+ */
+ move $t0, $a0 /* signal_pending pointer */
+ move $t1, $a1 /* syscall number */
+ move $a0, $a2 /* syscall arguments */
+ move $a1, $a3
+ move $a2, $a4
+ move $a3, $a5
+ move $a4, $a6
+ move $a5, $a7
+ move $a7, $t1
+
+ /*
+ * This next sequence of code works in conjunction with the
+ * rewind_if_safe_syscall_function(). If a signal is taken
+ * and the interrupted PC is anywhere between 'safe_syscall_start'
+ * and 'safe_syscall_end' then we rewind it to 'safe_syscall_start'.
+ * The code sequence must therefore be able to cope with this, and
+ * the syscall instruction must be the final one in the sequence.
+ */
+safe_syscall_start:
+ /* If signal_pending is non-zero, don't do the call */
+ ld.w $t1, $t0, 0
+ bnez $t1, 0f
+ syscall 0
+safe_syscall_end:
+ /* code path for having successfully executed the syscall */
+ jr $ra
+
+0:
+ /* code path when we didn't execute the syscall */
+ li.w $a0, -TARGET_ERESTARTSYS
+ jr $ra
+ .cfi_endproc
+
+ .size safe_syscall_base, .-safe_syscall_base
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 29/30] accel/tcg/user-exec: Implement CPU-specific signal handler for loongarch64 hosts
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (27 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 28/30] linux-user: Add safe syscall handling for loongarch64 hosts WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
2021-09-23 16:59 ` [PATCH v4 30/30] configure, meson.build: Mark support " WANG Xuerui
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
accel/tcg/user-exec.c | 73 +++++++++++++++++++++++++++++++++++++++++++
1 file changed, 73 insertions(+)
diff --git a/accel/tcg/user-exec.c b/accel/tcg/user-exec.c
index 8fed542622..38d4ad8a7d 100644
--- a/accel/tcg/user-exec.c
+++ b/accel/tcg/user-exec.c
@@ -878,6 +878,79 @@ int cpu_signal_handler(int host_signum, void *pinfo,
return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask);
}
+#elif defined(__loongarch64)
+
+int cpu_signal_handler(int host_signum, void *pinfo,
+ void *puc)
+{
+ siginfo_t *info = pinfo;
+ ucontext_t *uc = puc;
+ greg_t pc = uc->uc_mcontext.__pc;
+ uint32_t insn = *(uint32_t *)pc;
+ int is_write = 0;
+
+ /* Detect store by reading the instruction at the program counter. */
+ switch ((insn >> 26) & 0b111111) {
+ case 0b001000: /* {ll,sc}.[wd] */
+ switch ((insn >> 24) & 0b11) {
+ case 0b01: /* sc.w */
+ case 0b11: /* sc.d */
+ is_write = 1;
+ break;
+ }
+ break;
+ case 0b001001: /* {ld,st}ox4.[wd] ({ld,st}ptr.[wd]) */
+ switch ((insn >> 24) & 0b11) {
+ case 0b01: /* stox4.w (stptr.w) */
+ case 0b11: /* stox4.d (stptr.d) */
+ is_write = 1;
+ break;
+ }
+ break;
+ case 0b001010: /* {ld,st}.* family */
+ switch ((insn >> 22) & 0b1111) {
+ case 0b0100: /* st.b */
+ case 0b0101: /* st.h */
+ case 0b0110: /* st.w */
+ case 0b0111: /* st.d */
+ case 0b1101: /* fst.s */
+ case 0b1111: /* fst.d */
+ is_write = 1;
+ break;
+ }
+ break;
+ case 0b001110: /* indexed, atomic, bounds-checking memory operations */
+ uint32_t sel = (insn >> 15) & 0b11111111111;
+
+ switch (sel) {
+ case 0b00000100000: /* stx.b */
+ case 0b00000101000: /* stx.h */
+ case 0b00000110000: /* stx.w */
+ case 0b00000111000: /* stx.d */
+ case 0b00001110000: /* fstx.s */
+ case 0b00001111000: /* fstx.d */
+ case 0b00011101100: /* fstgt.s */
+ case 0b00011101101: /* fstgt.d */
+ case 0b00011101110: /* fstle.s */
+ case 0b00011101111: /* fstle.d */
+ case 0b00011111000: /* stgt.b */
+ case 0b00011111001: /* stgt.h */
+ case 0b00011111010: /* stgt.w */
+ case 0b00011111011: /* stgt.d */
+ case 0b00011111100: /* stle.b */
+ case 0b00011111101: /* stle.h */
+ case 0b00011111110: /* stle.w */
+ case 0b00011111111: /* stle.d */
+ case 0b00011000000 ... 0b00011100011: /* am* insns */
+ is_write = 1;
+ break;
+ }
+ break;
+ }
+
+ return handle_cpu_signal(pc, info, is_write, &uc->uc_sigmask);
+}
+
#else
#error host CPU specific signal handler needed
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread* [PATCH v4 30/30] configure, meson.build: Mark support for loongarch64 hosts
2021-09-23 16:59 [PATCH v4 00/30] LoongArch64 port of QEMU TCG WANG Xuerui
` (28 preceding siblings ...)
2021-09-23 16:59 ` [PATCH v4 29/30] accel/tcg/user-exec: Implement CPU-specific signal handler " WANG Xuerui
@ 2021-09-23 16:59 ` WANG Xuerui
29 siblings, 0 replies; 35+ messages in thread
From: WANG Xuerui @ 2021-09-23 16:59 UTC (permalink / raw)
To: qemu-devel
Cc: WANG Xuerui, Peter Maydell, Richard Henderson,
Philippe Mathieu-Daudé,
Laurent Vivier
Signed-off-by: WANG Xuerui <git@xen0n.name>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
---
configure | 7 ++++++-
meson.build | 2 +-
2 files changed, 7 insertions(+), 2 deletions(-)
diff --git a/configure b/configure
index 1043ccce4f..3a9035385d 100755
--- a/configure
+++ b/configure
@@ -659,6 +659,8 @@ elif check_define __arm__ ; then
cpu="arm"
elif check_define __aarch64__ ; then
cpu="aarch64"
+elif check_define __loongarch64 ; then
+ cpu="loongarch64"
else
cpu=$(uname -m)
fi
@@ -667,7 +669,7 @@ ARCH=
# Normalise host CPU name and set ARCH.
# Note that this case should only have supported host CPUs, not guests.
case "$cpu" in
- ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64)
+ ppc|ppc64|s390x|sparc64|x32|riscv32|riscv64|loongarch64)
;;
ppc64le)
ARCH="ppc64"
@@ -4969,6 +4971,9 @@ if test "$linux" = "yes" ; then
aarch64)
linux_arch=arm64
;;
+ loongarch*)
+ linux_arch=loongarch
+ ;;
mips64)
linux_arch=mips
;;
diff --git a/meson.build b/meson.build
index 15ef4d3c41..fc55712ac3 100644
--- a/meson.build
+++ b/meson.build
@@ -57,7 +57,7 @@ python = import('python').find_installation()
supported_oses = ['windows', 'freebsd', 'netbsd', 'openbsd', 'darwin', 'sunos', 'linux']
supported_cpus = ['ppc', 'ppc64', 's390x', 'riscv32', 'riscv64', 'x86', 'x86_64',
- 'arm', 'aarch64', 'mips', 'mips64', 'sparc', 'sparc64']
+ 'arm', 'aarch64', 'loongarch64', 'mips', 'mips64', 'sparc', 'sparc64']
cpu = host_machine.cpu_family()
targetos = host_machine.system()
--
2.33.0
^ permalink raw reply related [flat|nested] 35+ messages in thread