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 8e2d5831e4b ("target/mips: Legalize Loongson insn flags")
[2] commit af868995e1b ("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>

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 0836e72b5ac3157bec5db077a55f1a9b23b3eee3..a64050713f28eaf26abbdf300dd3a23a761d8134 100644 (file)
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -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;
 }