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linux-user: Add support for MIPS Loongson 2F/3A 

Userland ELF binaries using Loongson SIMD instructions have the
HWCAP_LOONGSON_MMI bit set [1].
Binaries compiled for Loongson 3A [2] have the HWCAP_LOONGSON_EXT
bit set for the LQ / SQ instructions.

[1] commit 8e2d5831e4 ("target/mips: Legalize Loongson insn flags")
[2] commit af868995e1 ("target/mips: Add Loongson-3 CPU definition")

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20201214003215.344522-7-f4bug@amsat.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Philippe Mathieu-Daudé 2020-12-14 01:32:15 +01:00 committed by Laurent Vivier
parent 9ea313ba5d
commit 53673d0ff4
1 changed files with 2 additions and 0 deletions
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2
linux-user/elfload.c
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@ -1024,6 +1024,8 @@ static uint32_t get_elf_hwcap(void)
GET_FEATURE_REG_EQU(CP0_Config0, CP0C0_AR, CP0C0_AR_LENGTH,
2, HWCAP_MIPS_R6);
GET_FEATURE_REG_SET(CP0_Config3, 1 << CP0C3_MSAP, HWCAP_MIPS_MSA);
GET_FEATURE_INSN(ASE_LMMI, HWCAP_LOONGSON_MMI);
GET_FEATURE_INSN(ASE_LEXT, HWCAP_LOONGSON_EXT);
return hwcaps;
}