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[v2,6/6] linux-user: Add support for MIPS Loongson 2F/3E

Message ID 20201201133525.2866838-7-f4bug@amsat.org (mailing list archive)
State New, archived
Headers show
Series linux-user: Rework get_elf_hwcap() and support MIPS Loongson 2F/3E | expand

Commit Message

Philippe Mathieu-Daudé Dec. 1, 2020, 1:35 p.m. UTC 
Userland ELF binaries using Longsoon SIMD instructions have the
HWCAP_LOONGSON_MMI bit set [1].
Binaries compiled for Longsoon 3E [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>
---
 linux-user/elfload.c | 2 ++
 1 file changed, 2 insertions(+)
diff mbox series

Patch

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index 167ffbfb06c..3b4fc3126da 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -1022,6 +1022,8 @@  static uint32_t get_elf_hwcap(void)
 
     GET_FEATURE_REG_EQU(CP0_Config0, 7 << CP0C0_AR, 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;
 }