578086ba2f
This patch adds support for the XTheadFmv ISA extension. The patch uses the T-Head specific decoder and translation. Signed-off-by: LIU Zhiwei <zhiwei_liu@linux.alibaba.com> Reviewed-by: Alistair Francis <alistair.francis@wdc.com> Signed-off-by: Christoph Müllner <christoph.muellner@vrull.eu> Message-Id: <20230131202013.2541053-14-christoph.muellner@vrull.eu> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
186 lines
8.9 KiB
Plaintext
186 lines
8.9 KiB
Plaintext
#
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# Translation routines for the instructions of the XThead* ISA extensions
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#
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# Copyright (c) 2022 Christoph Muellner, christoph.muellner@vrull.eu
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# Dr. Philipp Tomsich, philipp.tomsich@vrull.eu
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#
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# SPDX-License-Identifier: LGPL-2.1-or-later
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#
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# The documentation of the ISA extensions can be found here:
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# https://github.com/T-head-Semi/thead-extension-spec/releases/latest
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# Fields:
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%rd 7:5
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%rd1 7:5
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%rs 15:5
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%rs1 15:5
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%rd2 20:5
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%rs2 20:5
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%sh5 20:5
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%imm5 20:s5
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%sh6 20:6
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%sh2 25:2
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%imm2 25:2
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# Argument sets
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&r rd rs1 rs2 !extern
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&r2 rd rs1 !extern
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&shift shamt rs1 rd !extern
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&th_bfext msb lsb rs1 rd
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&th_pair rd1 rs rd2 sh2
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&th_memidx rd rs1 rs2 imm2
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&th_meminc rd rs1 imm5 imm2
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# Formats
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@sfence_vm ....... ..... ..... ... ..... ....... %rs1
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@rs2_s ....... ..... ..... ... ..... ....... %rs2 %rs1
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@r ....... ..... ..... ... ..... ....... &r %rs2 %rs1 %rd
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@r2 ....... ..... ..... ... ..... ....... &r2 %rs1 %rd
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@th_bfext msb:6 lsb:6 ..... ... ..... ....... &th_bfext %rs1 %rd
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@sh5 ....... ..... ..... ... ..... ....... &shift shamt=%sh5 %rs1 %rd
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@sh6 ...... ...... ..... ... ..... ....... &shift shamt=%sh6 %rs1 %rd
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@th_pair ..... .. ..... ..... ... ..... ....... &th_pair %rd1 %rs %rd2 %sh2
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@th_memidx ..... .. ..... ..... ... ..... ....... &th_memidx %rd %rs1 %rs2 %imm2
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@th_meminc ..... .. ..... ..... ... ..... ....... &th_meminc %rd %rs1 %imm5 %imm2
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# XTheadBa
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# Instead of defining a new encoding, we simply use the decoder to
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# extract the imm[0:1] field and dispatch to separate translation
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# functions (mirroring the `sh[123]add` instructions from Zba and
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# the regular RVI `add` instruction.
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#
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# The only difference between sh[123]add and addsl is that the shift
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# is applied to rs1 (for addsl) instead of rs2 (for sh[123]add).
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#
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# Note that shift-by-0 is a valid operation according to the manual.
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# This will be equivalent to a regular add.
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add 0000000 ..... ..... 001 ..... 0001011 @r
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th_addsl1 0000001 ..... ..... 001 ..... 0001011 @r
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th_addsl2 0000010 ..... ..... 001 ..... 0001011 @r
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th_addsl3 0000011 ..... ..... 001 ..... 0001011 @r
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# XTheadBb
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th_ext ...... ...... ..... 010 ..... 0001011 @th_bfext
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th_extu ...... ...... ..... 011 ..... 0001011 @th_bfext
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th_ff0 1000010 00000 ..... 001 ..... 0001011 @r2
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th_ff1 1000011 00000 ..... 001 ..... 0001011 @r2
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th_srri 000100 ...... ..... 001 ..... 0001011 @sh6
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th_srriw 0001010 ..... ..... 001 ..... 0001011 @sh5
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th_rev 1000001 00000 ..... 001 ..... 0001011 @r2
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th_revw 1001000 00000 ..... 001 ..... 0001011 @r2
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th_tstnbz 1000000 00000 ..... 001 ..... 0001011 @r2
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# XTheadBs
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th_tst 100010 ...... ..... 001 ..... 0001011 @sh6
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# XTheadCmo
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th_dcache_call 0000000 00001 00000 000 00000 0001011
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th_dcache_ciall 0000000 00011 00000 000 00000 0001011
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th_dcache_iall 0000000 00010 00000 000 00000 0001011
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th_dcache_cpa 0000001 01001 ..... 000 00000 0001011 @sfence_vm
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th_dcache_cipa 0000001 01011 ..... 000 00000 0001011 @sfence_vm
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th_dcache_ipa 0000001 01010 ..... 000 00000 0001011 @sfence_vm
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th_dcache_cva 0000001 00101 ..... 000 00000 0001011 @sfence_vm
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th_dcache_civa 0000001 00111 ..... 000 00000 0001011 @sfence_vm
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th_dcache_iva 0000001 00110 ..... 000 00000 0001011 @sfence_vm
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th_dcache_csw 0000001 00001 ..... 000 00000 0001011 @sfence_vm
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th_dcache_cisw 0000001 00011 ..... 000 00000 0001011 @sfence_vm
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th_dcache_isw 0000001 00010 ..... 000 00000 0001011 @sfence_vm
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th_dcache_cpal1 0000001 01000 ..... 000 00000 0001011 @sfence_vm
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th_dcache_cval1 0000001 00100 ..... 000 00000 0001011 @sfence_vm
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th_icache_iall 0000000 10000 00000 000 00000 0001011
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th_icache_ialls 0000000 10001 00000 000 00000 0001011
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th_icache_ipa 0000001 11000 ..... 000 00000 0001011 @sfence_vm
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th_icache_iva 0000001 10000 ..... 000 00000 0001011 @sfence_vm
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th_l2cache_call 0000000 10101 00000 000 00000 0001011
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th_l2cache_ciall 0000000 10111 00000 000 00000 0001011
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th_l2cache_iall 0000000 10110 00000 000 00000 0001011
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# XTheadCondMov
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th_mveqz 0100000 ..... ..... 001 ..... 0001011 @r
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th_mvnez 0100001 ..... ..... 001 ..... 0001011 @r
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# XTheadFMemIdx
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th_flrd 01100 .. ..... ..... 110 ..... 0001011 @th_memidx
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th_flrw 01000 .. ..... ..... 110 ..... 0001011 @th_memidx
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th_flurd 01110 .. ..... ..... 110 ..... 0001011 @th_memidx
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th_flurw 01010 .. ..... ..... 110 ..... 0001011 @th_memidx
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th_fsrd 01100 .. ..... ..... 111 ..... 0001011 @th_memidx
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th_fsrw 01000 .. ..... ..... 111 ..... 0001011 @th_memidx
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th_fsurd 01110 .. ..... ..... 111 ..... 0001011 @th_memidx
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th_fsurw 01010 .. ..... ..... 111 ..... 0001011 @th_memidx
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# XTheadFmv
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th_fmv_hw_x 1010000 00000 ..... 001 ..... 0001011 @r2
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th_fmv_x_hw 1100000 00000 ..... 001 ..... 0001011 @r2
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# XTheadMac
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th_mula 00100 00 ..... ..... 001 ..... 0001011 @r
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th_mulah 00101 00 ..... ..... 001 ..... 0001011 @r
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th_mulaw 00100 10 ..... ..... 001 ..... 0001011 @r
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th_muls 00100 01 ..... ..... 001 ..... 0001011 @r
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th_mulsh 00101 01 ..... ..... 001 ..... 0001011 @r
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th_mulsw 00100 11 ..... ..... 001 ..... 0001011 @r
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# XTheadMemIdx
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th_ldia 01111 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_ldib 01101 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lwia 01011 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lwib 01001 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lwuia 11011 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lwuib 11001 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lhia 00111 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lhib 00101 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lhuia 10111 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lhuib 10101 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lbia 00011 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lbib 00001 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lbuia 10011 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_lbuib 10001 .. ..... ..... 100 ..... 0001011 @th_meminc
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th_sdia 01111 .. ..... ..... 101 ..... 0001011 @th_meminc
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th_sdib 01101 .. ..... ..... 101 ..... 0001011 @th_meminc
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th_swia 01011 .. ..... ..... 101 ..... 0001011 @th_meminc
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th_swib 01001 .. ..... ..... 101 ..... 0001011 @th_meminc
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th_shia 00111 .. ..... ..... 101 ..... 0001011 @th_meminc
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th_shib 00101 .. ..... ..... 101 ..... 0001011 @th_meminc
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th_sbia 00011 .. ..... ..... 101 ..... 0001011 @th_meminc
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th_sbib 00001 .. ..... ..... 101 ..... 0001011 @th_meminc
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th_lrd 01100 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lrw 01000 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lrwu 11000 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lrh 00100 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lrhu 10100 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lrb 00000 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lrbu 10000 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_srd 01100 .. ..... ..... 101 ..... 0001011 @th_memidx
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th_srw 01000 .. ..... ..... 101 ..... 0001011 @th_memidx
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th_srh 00100 .. ..... ..... 101 ..... 0001011 @th_memidx
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th_srb 00000 .. ..... ..... 101 ..... 0001011 @th_memidx
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th_lurd 01110 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lurw 01010 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lurwu 11010 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lurh 00110 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lurhu 10110 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lurb 00010 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_lurbu 10010 .. ..... ..... 100 ..... 0001011 @th_memidx
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th_surd 01110 .. ..... ..... 101 ..... 0001011 @th_memidx
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th_surw 01010 .. ..... ..... 101 ..... 0001011 @th_memidx
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th_surh 00110 .. ..... ..... 101 ..... 0001011 @th_memidx
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th_surb 00010 .. ..... ..... 101 ..... 0001011 @th_memidx
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# XTheadMemPair
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th_ldd 11111 .. ..... ..... 100 ..... 0001011 @th_pair
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th_lwd 11100 .. ..... ..... 100 ..... 0001011 @th_pair
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th_lwud 11110 .. ..... ..... 100 ..... 0001011 @th_pair
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th_sdd 11111 .. ..... ..... 101 ..... 0001011 @th_pair
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th_swd 11100 .. ..... ..... 101 ..... 0001011 @th_pair
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# XTheadSync
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th_sfence_vmas 0000010 ..... ..... 000 00000 0001011 @rs2_s
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th_sync 0000000 11000 00000 000 00000 0001011
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th_sync_i 0000000 11010 00000 000 00000 0001011
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th_sync_is 0000000 11011 00000 000 00000 0001011
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th_sync_s 0000000 11001 00000 000 00000 0001011
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