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RISC-V: Adding T-Head FMemIdx extension

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This patch adds support for the T-Head FMemIdx instructions.
The patch uses the T-Head specific decoder and translation.

Co-developed-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: <20230131202013.2541053-11-christoph.muellner@vrull.eu>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
This commit is contained in:
Christoph Müllner 2023-01-31 21:20:09 +01:00 • committed by Alistair Francis
parent 45f9df86db
commit d4d901157e
5 changed files with 123 additions and 1 deletions
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10
target/riscv/xthead.decode
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@ -100,6 +100,16 @@ th_l2cache_iall 0000000 10110 00000 000 00000 0001011
th_mveqz 0100000 ..... ..... 001 ..... 0001011 @r
th_mvnez 0100001 ..... ..... 001 ..... 0001011 @r
# XTheadFMemIdx
th_flrd 01100 .. ..... ..... 110 ..... 0001011 @th_memidx
th_flrw 01000 .. ..... ..... 110 ..... 0001011 @th_memidx
th_flurd 01110 .. ..... ..... 110 ..... 0001011 @th_memidx
th_flurw 01010 .. ..... ..... 110 ..... 0001011 @th_memidx
th_fsrd 01100 .. ..... ..... 111 ..... 0001011 @th_memidx
th_fsrw 01000 .. ..... ..... 111 ..... 0001011 @th_memidx
th_fsurd 01110 .. ..... ..... 111 ..... 0001011 @th_memidx
th_fsurw 01010 .. ..... ..... 111 ..... 0001011 @th_memidx
# XTheadMac
th_mula 00100 00 ..... ..... 001 ..... 0001011 @r
th_mulah 00101 00 ..... ..... 001 ..... 0001011 @r