diff options
author | Christoph Müllner <christoph.muellner@vrull.eu> | 2023-06-12 13:10:34 +0200 |
---|---|---|
committer | Alistair Francis <alistair.francis@wdc.com> | 2023-07-10 22:29:14 +1000 |
commit | 318df7238b9f842af96aad01ec183012c8fecab9 (patch) | |
tree | 7a1a7c1e60875c973c7010443f6103b8c800e220 /disas | |
parent | f6f72338d80ec6f15a6b18643797bc10901aadf3 (diff) | |
download | qemu-318df7238b9f842af96aad01ec183012c8fecab9.zip qemu-318df7238b9f842af96aad01ec183012c8fecab9.tar.gz qemu-318df7238b9f842af96aad01ec183012c8fecab9.tar.bz2 |
disas/riscv: Add support for XThead* instructions
Support for emulating XThead* instruction has been added recently.
This patch adds support for these instructions to the RISC-V disassembler.
Co-developed-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com>
Acked-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu>
Message-Id: <20230612111034.3955227-9-christoph.muellner@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
Diffstat (limited to 'disas')
-rw-r--r-- | disas/meson.build | 1 | ||||
-rw-r--r-- | disas/riscv-xthead.c | 707 | ||||
-rw-r--r-- | disas/riscv-xthead.h | 28 | ||||
-rw-r--r-- | disas/riscv.c | 69 | ||||
-rw-r--r-- | disas/riscv.h | 12 |
5 files changed, 817 insertions, 0 deletions
diff --git a/disas/meson.build b/disas/meson.build index f2b21e1..815523a 100644 --- a/disas/meson.build +++ b/disas/meson.build @@ -8,6 +8,7 @@ common_ss.add(when: 'CONFIG_MIPS_DIS', if_true: files('mips.c', 'nanomips.c')) common_ss.add(when: 'CONFIG_NIOS2_DIS', if_true: files('nios2.c')) common_ss.add(when: 'CONFIG_RISCV_DIS', if_true: files( 'riscv.c', + 'riscv-xthead.c', 'riscv-xventana.c' )) common_ss.add(when: 'CONFIG_SH4_DIS', if_true: files('sh4.c')) diff --git a/disas/riscv-xthead.c b/disas/riscv-xthead.c new file mode 100644 index 0000000..99da679 --- /dev/null +++ b/disas/riscv-xthead.c @@ -0,0 +1,707 @@ +/* + * QEMU RISC-V Disassembler for xthead. + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#include "disas/riscv.h" +#include "disas/riscv-xthead.h" + +typedef enum { + /* 0 is reserved for rv_op_illegal. */ + /* XTheadBa */ + rv_op_th_addsl = 1, + /* XTheadBb */ + rv_op_th_srri, + rv_op_th_srriw, + rv_op_th_ext, + rv_op_th_extu, + rv_op_th_ff0, + rv_op_th_ff1, + rv_op_th_rev, + rv_op_th_revw, + rv_op_th_tstnbz, + /* XTheadBs */ + rv_op_th_tst, + /* XTheadCmo */ + rv_op_th_dcache_call, + rv_op_th_dcache_ciall, + rv_op_th_dcache_iall, + rv_op_th_dcache_cpa, + rv_op_th_dcache_cipa, + rv_op_th_dcache_ipa, + rv_op_th_dcache_cva, + rv_op_th_dcache_civa, + rv_op_th_dcache_iva, + rv_op_th_dcache_csw, + rv_op_th_dcache_cisw, + rv_op_th_dcache_isw, + rv_op_th_dcache_cpal1, + rv_op_th_dcache_cval1, + rv_op_th_icache_iall, + rv_op_th_icache_ialls, + rv_op_th_icache_ipa, + rv_op_th_icache_iva, + rv_op_th_l2cache_call, + rv_op_th_l2cache_ciall, + rv_op_th_l2cache_iall, + /* XTheadCondMov */ + rv_op_th_mveqz, + rv_op_th_mvnez, + /* XTheadFMemIdx */ + rv_op_th_flrd, + rv_op_th_flrw, + rv_op_th_flurd, + rv_op_th_flurw, + rv_op_th_fsrd, + rv_op_th_fsrw, + rv_op_th_fsurd, + rv_op_th_fsurw, + /* XTheadFmv */ + rv_op_th_fmv_hw_x, + rv_op_th_fmv_x_hw, + /* XTheadMac */ + rv_op_th_mula, + rv_op_th_mulah, + rv_op_th_mulaw, + rv_op_th_muls, + rv_op_th_mulsw, + rv_op_th_mulsh, + /* XTheadMemIdx */ + rv_op_th_lbia, + rv_op_th_lbib, + rv_op_th_lbuia, + rv_op_th_lbuib, + rv_op_th_lhia, + rv_op_th_lhib, + rv_op_th_lhuia, + rv_op_th_lhuib, + rv_op_th_lwia, + rv_op_th_lwib, + rv_op_th_lwuia, + rv_op_th_lwuib, + rv_op_th_ldia, + rv_op_th_ldib, + rv_op_th_sbia, + rv_op_th_sbib, + rv_op_th_shia, + rv_op_th_shib, + rv_op_th_swia, + rv_op_th_swib, + rv_op_th_sdia, + rv_op_th_sdib, + rv_op_th_lrb, + rv_op_th_lrbu, + rv_op_th_lrh, + rv_op_th_lrhu, + rv_op_th_lrw, + rv_op_th_lrwu, + rv_op_th_lrd, + rv_op_th_srb, + rv_op_th_srh, + rv_op_th_srw, + rv_op_th_srd, + rv_op_th_lurb, + rv_op_th_lurbu, + rv_op_th_lurh, + rv_op_th_lurhu, + rv_op_th_lurw, + rv_op_th_lurwu, + rv_op_th_lurd, + rv_op_th_surb, + rv_op_th_surh, + rv_op_th_surw, + rv_op_th_surd, + /* XTheadMemPair */ + rv_op_th_ldd, + rv_op_th_lwd, + rv_op_th_lwud, + rv_op_th_sdd, + rv_op_th_swd, + /* XTheadSync */ + rv_op_th_sfence_vmas, + rv_op_th_sync, + rv_op_th_sync_i, + rv_op_th_sync_is, + rv_op_th_sync_s, +} rv_xthead_op; + +const rv_opcode_data xthead_opcode_data[] = { + { "th.illegal", rv_codec_illegal, rv_fmt_none, NULL, 0, 0, 0 }, + /* XTheadBa */ + { "th.addsl", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + /* XTheadBb */ + { "th.srri", rv_codec_r2_imm6, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "th.srriw", rv_codec_r2_imm5, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + { "th.ext", rv_codec_r2_immhl, rv_fmt_rd_rs1_immh_imml, NULL, 0, 0, 0 }, + { "th.extu", rv_codec_r2_immhl, rv_fmt_rd_rs1_immh_imml, NULL, 0, 0, 0 }, + { "th.ff0", rv_codec_r2, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "th.ff1", rv_codec_r2, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "th.rev", rv_codec_r2, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "th.revw", rv_codec_r2, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + { "th.tstnbz", rv_codec_r2, rv_fmt_rd_rs1, NULL, 0, 0, 0 }, + /* XTheadBs */ + { "th.tst", rv_codec_r2_imm6, rv_fmt_rd_rs1_imm, NULL, 0, 0, 0 }, + /* XTheadCmo */ + { "th.dcache.call", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.dcache.ciall", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.dcache.iall", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.dcache.cpa", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.cipa", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.ipa", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.cva", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.civa", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.iva", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.csw", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.cisw", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.isw", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.cpal1", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.dcache.cval1", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.icache.iall", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.icache.ialls", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.icache.ipa", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.icache.iva", rv_codec_r, rv_fmt_rs1, NULL, 0, 0, 0 }, + { "th.l2cache.call", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.l2cache.ciall", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.l2cache.iall", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + /* XTheadCondMov */ + { "th.mveqz", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "th.mvnez", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + /* XTheadFMemIdx */ + { "th.flrd", rv_codec_r_imm2, rv_fmt_frd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.flrw", rv_codec_r_imm2, rv_fmt_frd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.flurd", rv_codec_r_imm2, rv_fmt_frd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.flurw", rv_codec_r_imm2, rv_fmt_frd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.fsrd", rv_codec_r_imm2, rv_fmt_frd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.fsrw", rv_codec_r_imm2, rv_fmt_frd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.fsurd", rv_codec_r_imm2, rv_fmt_frd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.fsurw", rv_codec_r_imm2, rv_fmt_frd_rs1_rs2_imm, NULL, 0, 0, 0 }, + /* XTheadFmv */ + { "th.fmv.hw.x", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 }, + { "th.fmv.x.hw", rv_codec_r, rv_fmt_rd_frs1, NULL, 0, 0, 0 }, + /* XTheadMac */ + { "th.mula", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "th.mulaw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "th.mulah", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "th.muls", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "th.mulsw", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + { "th.mulsh", rv_codec_r, rv_fmt_rd_rs1_rs2, NULL, 0, 0, 0 }, + /* XTheadMemIdx */ + { "th.lbia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lbib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml, NULL, 0, 0, 0 }, + { "th.lbuia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lbuib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lhia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lhib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lhuia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lhuib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lwia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lwib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lwuia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lwuib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.ldia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.ldib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.sbia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.sbib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.shia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.shib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.swia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.swib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.sdia", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.sdib", rv_codec_r2_imm2_imm5, rv_fmt_rd_rs1_immh_imml_addr, NULL, 0, 0, 0 }, + { "th.lrb", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lrbu", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lrh", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lrhu", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lrw", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lrwu", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lrd", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.srb", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.srh", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.srw", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.srd", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lurb", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lurbu", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lurh", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lurhu", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lurw", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lurwu", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.lurd", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.surb", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.surh", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.surw", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + { "th.surd", rv_codec_r_imm2, rv_fmt_rd_rs1_rs2_imm, NULL, 0, 0, 0 }, + /* XTheadMemPair */ + { "th.ldd", rv_codec_r_imm2, rv_fmt_rd2_imm, NULL, 0, 0, 0 }, + { "th.lwd", rv_codec_r_imm2, rv_fmt_rd2_imm, NULL, 0, 0, 0 }, + { "th.lwud", rv_codec_r_imm2, rv_fmt_rd2_imm, NULL, 0, 0, 0 }, + { "th.sdd", rv_codec_r_imm2, rv_fmt_rd2_imm, NULL, 0, 0, 0 }, + { "th.swd", rv_codec_r_imm2, rv_fmt_rd2_imm, NULL, 0, 0, 0 }, + /* XTheadSync */ + { "th.sfence.vmas", rv_codec_r, rv_fmt_rs1_rs2, NULL, 0, 0, 0 }, + { "th.sync", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.sync.i", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.sync.is", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, + { "th.sync.s", rv_codec_none, rv_fmt_none, NULL, 0, 0, 0 }, +}; + +void decode_xtheadba(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 1: + switch ((inst >> 25) & 0b1111111) { + case 0b0000000: + case 0b0000001: + case 0b0000010: + case 0b0000011: op = rv_op_th_addsl; break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadbb(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 1: + switch ((inst >> 25) & 0b1111111) { + case 0b0001010: op = rv_op_th_srriw; break; + case 0b1000000: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_tstnbz; + } + break; + case 0b1000001: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_rev; + } + break; + case 0b1000010: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_ff0; + } + break; + case 0b1000011: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_ff1; + } + break; + case 0b1000100: + case 0b1001000: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_revw; + } + break; + case 0b0000100: + case 0b0000101: op = rv_op_th_srri; break; + } + break; + case 2: op = rv_op_th_ext; break; + case 3: op = rv_op_th_extu; break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadbs(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 1: + switch ((inst >> 26) & 0b111111) { + case 0b100010: op = rv_op_th_tst; break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadcmo(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 0: + switch ((inst >> 20 & 0b111111111111)) { + case 0b000000000001: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_dcache_call; + } + break; + case 0b000000000011: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_dcache_ciall; + } + break; + case 0b000000000010: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_dcache_iall; + } + break; + case 0b000000101001: op = rv_op_th_dcache_cpa; break; + case 0b000000101011: op = rv_op_th_dcache_cipa; break; + case 0b000000101010: op = rv_op_th_dcache_ipa; break; + case 0b000000100101: op = rv_op_th_dcache_cva; break; + case 0b000000100111: op = rv_op_th_dcache_civa; break; + case 0b000000100110: op = rv_op_th_dcache_iva; break; + case 0b000000100001: op = rv_op_th_dcache_csw; break; + case 0b000000100011: op = rv_op_th_dcache_cisw; break; + case 0b000000100010: op = rv_op_th_dcache_isw; break; + case 0b000000101000: op = rv_op_th_dcache_cpal1; break; + case 0b000000100100: op = rv_op_th_dcache_cval1; break; + case 0b000000010000: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_icache_iall; + } + break; + case 0b000000010001: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_icache_ialls; + } + break; + case 0b000000111000: op = rv_op_th_icache_ipa; break; + case 0b000000110000: op = rv_op_th_icache_iva; break; + case 0b000000010101: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_l2cache_call; + } + break; + case 0b000000010111: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_l2cache_ciall; + } + break; + case 0b000000010110: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_l2cache_iall; + } + break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadcondmov(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 1: + switch ((inst >> 25) & 0b1111111) { + case 0b0100000: op = rv_op_th_mveqz; break; + case 0b0100001: op = rv_op_th_mvnez; break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadfmemidx(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 6: + switch ((inst >> 27) & 0b11111) { + case 8: op = rv_op_th_flrw; break; + case 10: op = rv_op_th_flurw; break; + case 12: op = rv_op_th_flrd; break; + case 14: op = rv_op_th_flurd; break; + } + break; + case 7: + switch ((inst >> 27) & 0b11111) { + case 8: op = rv_op_th_fsrw; break; + case 10: op = rv_op_th_fsurw; break; + case 12: op = rv_op_th_fsrd; break; + case 14: op = rv_op_th_fsurd; break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadfmv(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 1: + switch ((inst >> 25) & 0b1111111) { + case 0b1010000: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_fmv_hw_x; + } + break; + case 0b1100000: + if (((inst >> 20) & 0b11111) == 0) { + op = rv_op_th_fmv_x_hw; + } + break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadmac(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 1: + switch ((inst >> 25) & 0b1111111) { + case 0b0010000: op = rv_op_th_mula; break; + case 0b0010001: op = rv_op_th_muls; break; + case 0b0010010: op = rv_op_th_mulaw; break; + case 0b0010011: op = rv_op_th_mulsw; break; + case 0b0010100: op = rv_op_th_mulah; break; + case 0b0010101: op = rv_op_th_mulsh; break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadmemidx(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 4: + switch ((inst >> 27) & 0b11111) { + case 0: op = rv_op_th_lrb; break; + case 1: op = rv_op_th_lbib; break; + case 2: op = rv_op_th_lurb; break; + case 3: op = rv_op_th_lbia; break; + case 4: op = rv_op_th_lrh; break; + case 5: op = rv_op_th_lhib; break; + case 6: op = rv_op_th_lurh; break; + case 7: op = rv_op_th_lhia; break; + case 8: op = rv_op_th_lrw; break; + case 9: op = rv_op_th_lwib; break; + case 10: op = rv_op_th_lurw; break; + case 11: op = rv_op_th_lwia; break; + case 12: op = rv_op_th_lrd; break; + case 13: op = rv_op_th_ldib; break; + case 14: op = rv_op_th_lurd; break; + case 15: op = rv_op_th_ldia; break; + case 16: op = rv_op_th_lrbu; break; + case 17: op = rv_op_th_lbuib; break; + case 18: op = rv_op_th_lurbu; break; + case 19: op = rv_op_th_lbuia; break; + case 20: op = rv_op_th_lrhu; break; + case 21: op = rv_op_th_lhuib; break; + case 22: op = rv_op_th_lurhu; break; + case 23: op = rv_op_th_lhuia; break; + case 24: op = rv_op_th_lrwu; break; + case 25: op = rv_op_th_lwuib; break; + case 26: op = rv_op_th_lurwu; break; + case 27: op = rv_op_th_lwuia; break; + } + break; + case 5: + switch ((inst >> 27) & 0b11111) { + case 0: op = rv_op_th_srb; break; + case 1: op = rv_op_th_sbib; break; + case 2: op = rv_op_th_surb; break; + case 3: op = rv_op_th_sbia; break; + case 4: op = rv_op_th_srh; break; + case 5: op = rv_op_th_shib; break; + case 6: op = rv_op_th_surh; break; + case 7: op = rv_op_th_shia; break; + case 8: op = rv_op_th_srw; break; + case 9: op = rv_op_th_swib; break; + case 10: op = rv_op_th_surw; break; + case 11: op = rv_op_th_swia; break; + case 12: op = rv_op_th_srd; break; + case 13: op = rv_op_th_sdib; break; + case 14: op = rv_op_th_surd; break; + case 15: op = rv_op_th_sdia; break; + } + break; + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadmempair(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 4: + switch ((inst >> 27) & 0b11111) { + case 28: op = rv_op_th_lwd; break; + case 30: op = rv_op_th_lwud; break; + case 31: op = rv_op_th_ldd; break; + } + break; + case 5: + switch ((inst >> 27) & 0b11111) { + case 28: op = rv_op_th_swd; break; + case 31: op = rv_op_th_sdd; break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} + +void decode_xtheadsync(rv_decode *dec, rv_isa isa) +{ + rv_inst inst = dec->inst; + rv_opcode op = rv_op_illegal; + + switch (((inst >> 0) & 0b11)) { + case 3: + switch (((inst >> 2) & 0b11111)) { + case 2: + /* custom-0 */ + switch ((inst >> 12) & 0b111) { + case 0: + switch ((inst >> 25) & 0b1111111) { + case 0b0000010: op = rv_op_th_sfence_vmas; break; + case 0b0000000: + switch ((inst >> 20) & 0b11111) { + case 0b11000: op = rv_op_th_sync; break; + case 0b11010: op = rv_op_th_sync_i; break; + case 0b11011: op = rv_op_th_sync_is; break; + case 0b11001: op = rv_op_th_sync_s; break; + } + break; + } + break; + } + break; + /* custom-0 */ + } + break; + } + + dec->op = op; +} diff --git a/disas/riscv-xthead.h b/disas/riscv-xthead.h new file mode 100644 index 0000000..fcd4274 --- /dev/null +++ b/disas/riscv-xthead.h @@ -0,0 +1,28 @@ +/* + * QEMU disassembler -- RISC-V specific header (xthead*). + * + * Copyright (c) 2023 VRULL GmbH + * + * SPDX-License-Identifier: GPL-2.0-or-later + */ + +#ifndef DISAS_RISCV_XTHEAD_H +#define DISAS_RISCV_XTHEAD_H + +#include "disas/riscv.h" + +extern const rv_opcode_data xthead_opcode_data[]; + +void decode_xtheadba(rv_decode *, rv_isa); +void decode_xtheadbb(rv_decode *, rv_isa); +void decode_xtheadbs(rv_decode *, rv_isa); +void decode_xtheadcmo(rv_decode *, rv_isa); +void decode_xtheadcondmov(rv_decode *, rv_isa); +void decode_xtheadfmemidx(rv_decode *, rv_isa); +void decode_xtheadfmv(rv_decode *, rv_isa); +void decode_xtheadmac(rv_decode *, rv_isa); +void decode_xtheadmemidx(rv_decode *, rv_isa); +void decode_xtheadmempair(rv_decode *, rv_isa); +void decode_xtheadsync(rv_decode *, rv_isa); + +#endif /* DISAS_RISCV_XTHEAD_H */ diff --git a/disas/riscv.c b/disas/riscv.c index c7bfd4e..94e568a 100644 --- a/disas/riscv.c +++ b/disas/riscv.c @@ -18,11 +18,13 @@ */ #include "qemu/osdep.h" +#include "qemu/bitops.h" #include "disas/dis-asm.h" #include "target/riscv/cpu_cfg.h" #include "disas/riscv.h" /* Vendor extensions */ +#include "disas/riscv-xthead.h" #include "disas/riscv-xventana.h" typedef enum { @@ -3869,6 +3871,26 @@ static uint32_t operand_zcmp_rlist(rv_inst inst) return ((inst << 56) >> 60); } +static uint32_t operand_imm6(rv_inst inst) +{ + return (inst << 38) >> 60; +} + +static uint32_t operand_imm2(rv_inst inst) +{ + return (inst << 37) >> 62; +} + +static uint32_t operand_immh(rv_inst inst) +{ + return (inst << 32) >> 58; +} + +static uint32_t operand_imml(rv_inst inst) +{ + return (inst << 38) >> 58; +} + static uint32_t calculate_stack_adj(rv_isa isa, uint32_t rlist, uint32_t spimm) { int xlen_bytes_log2 = isa == rv64 ? 3 : 2; @@ -4233,6 +4255,38 @@ static void decode_inst_operands(rv_decode *dec, rv_isa isa) case rv_codec_zcmt_jt: dec->imm = operand_tbl_index(inst); break; + case rv_codec_r2_imm5: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->imm = operand_rs2(inst); + break; + case rv_codec_r2: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + break; + case rv_codec_r2_imm6: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->imm = operand_imm6(inst); + break; + case rv_codec_r_imm2: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->rs2 = operand_rs2(inst); + dec->imm = operand_imm2(inst); + break; + case rv_codec_r2_immhl: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->imm = operand_immh(inst); + dec->imm1 = operand_imml(inst); + break; + case rv_codec_r2_imm2_imm5: + dec->rd = operand_rd(inst); + dec->rs1 = operand_rs1(inst); + dec->imm = sextract32(operand_rs2(inst), 0, 5); + dec->imm1 = operand_imm2(inst); + break; }; } @@ -4446,6 +4500,10 @@ static void format_inst(char *buf, size_t buflen, size_t tab, rv_decode *dec) snprintf(tmp, sizeof(tmp), "%u", ((uint32_t)dec->imm & 0b11111)); append(buf, tmp, buflen); break; + case 'j': + snprintf(tmp, sizeof(tmp), "%d", dec->imm1); + append(buf, tmp, buflen); + break; case 'o': snprintf(tmp, sizeof(tmp), "%d", dec->imm); append(buf, tmp, buflen); @@ -4711,6 +4769,17 @@ disasm_inst(char *buf, size_t buflen, rv_isa isa, uint64_t pc, rv_inst inst, void (*decode_func)(rv_decode *, rv_isa); } decoders[] = { { always_true_p, rvi_opcode_data, decode_inst_opcode }, + { has_xtheadba_p, xthead_opcode_data, decode_xtheadba }, + { has_xtheadbb_p, xthead_opcode_data, decode_xtheadbb }, + { has_xtheadbs_p, xthead_opcode_data, decode_xtheadbs }, + { has_xtheadcmo_p, xthead_opcode_data, decode_xtheadcmo }, + { has_xtheadcondmov_p, xthead_opcode_data, decode_xtheadcondmov }, + { has_xtheadfmemidx_p, xthead_opcode_data, decode_xtheadfmemidx }, + { has_xtheadfmv_p, xthead_opcode_data, decode_xtheadfmv }, + { has_xtheadmac_p, xthead_opcode_data, decode_xtheadmac }, + { has_xtheadmemidx_p, xthead_opcode_data, decode_xtheadmemidx }, + { has_xtheadmempair_p, xthead_opcode_data, decode_xtheadmempair }, + { has_xtheadsync_p, xthead_opcode_data, decode_xtheadsync }, { has_XVentanaCondOps_p, ventana_opcode_data, decode_xventanacondops }, }; diff --git a/disas/riscv.h b/disas/riscv.h index 4601965..052a0c4 100644 --- a/disas/riscv.h +++ b/disas/riscv.h @@ -159,6 +159,12 @@ typedef enum { rv_codec_zcmp_cm_pushpop, rv_codec_zcmp_cm_mv, rv_codec_zcmt_jt, + rv_codec_r2_imm5, + rv_codec_r2, + rv_codec_r2_imm6, + rv_codec_r_imm2, + rv_codec_r2_immhl, + rv_codec_r2_imm2_imm5, } rv_codec; /* structures */ @@ -185,6 +191,7 @@ typedef struct { uint64_t inst; const rv_opcode_data *opcode_data; int32_t imm; + int32_t imm1; uint16_t op; uint8_t codec; uint8_t rd; @@ -283,5 +290,10 @@ enum { #define rv_fmt_push_rlist "O\tx,-i" #define rv_fmt_pop_rlist "O\tx,i" #define rv_fmt_zcmt_index "O\ti" +#define rv_fmt_rd_rs1_rs2_imm "O\t0,1,2,i" +#define rv_fmt_frd_rs1_rs2_imm "O\t3,1,2,i" +#define rv_fmt_rd_rs1_immh_imml "O\t0,1,i,j" +#define rv_fmt_rd_rs1_immh_imml_addr "O\t0,(1),i,j" +#define rv_fmt_rd2_imm "O\t0,2,(1),i" #endif /* DISAS_RISCV_H */ |