| commit | 1086504c6f46a2b3be90e887dddb4741bf8c500d | |
| author | Tsukasa OI <research_trasio@irq.a4lg.com> | |
| Sun, 15 May 2022 02:56:10 +0000 (15 11:56 +0900) | ||
| committer | Alistair Francis <alistair.francis@wdc.com> | |
| Tue, 24 May 2022 00:38:50 +0000 (24 10:38 +1000) | ||
| tree | 61bcaffe39421638518cac51d5b4321a4f918181 | treesnapshot (tar.gz zip) |
| parent | 9f6b7da5d27b744ddbdba98ba8b89c710dd3c1b7 | commitdiff |
target/riscv: FP extension requirements
QEMU allowed inconsistent configurations that made floating point
arithmetic effectively unusable.
This commit adds certain checks for consistent FP arithmetic:
- F requires Zicsr
- Zfinx requires Zicsr
- Zfh/Zfhmin require F
- D requires F
- V requires D
Because F/D/Zicsr are enabled by default (and an error will not occur unless
we manually disable one or more of prerequisites), this commit just enforces
the user to give consistent combinations.
Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <00e7b1c6060dab32ac7d49813b1ca84d3eb63298.1652583332.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
QEMU allowed inconsistent configurations that made floating point
arithmetic effectively unusable.
This commit adds certain checks for consistent FP arithmetic:
- F requires Zicsr
- Zfinx requires Zicsr
- Zfh/Zfhmin require F
- D requires F
- V requires D
Because F/D/Zicsr are enabled by default (and an error will not occur unless
we manually disable one or more of prerequisites), this commit just enforces
the user to give consistent combinations.
Signed-off-by: Tsukasa OI <research_trasio@irq.a4lg.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <00e7b1c6060dab32ac7d49813b1ca84d3eb63298.1652583332.git.research_trasio@irq.a4lg.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
| target/riscv/cpu.c | diffblobblamehistory |