diff options
| author | Richard Henderson <richard.henderson@linaro.org> | 2023-09-16 15:01:47 -0700 |
|---|---|---|
| committer | Richard Henderson <richard.henderson@linaro.org> | 2023-11-06 08:27:21 -0800 |
| commit | 0885f1221e0add5529dada1e7948d2c00189cb8b (patch) | |
| tree | a84e97244b914cb2c0f7c8ccffe60f6d023d50ec /util | |
| parent | 2b2ae0a42e67a85273c0976466f1a634ede084dc (diff) | |
util: Add cpuinfo for loongarch64
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Jiajie Chen <c@jia.je>
Message-Id: <20230916220151.526140-4-richard.henderson@linaro.org>
Diffstat (limited to 'util')
| -rw-r--r-- | util/cpuinfo-loongarch.c | 35 | ||||
| -rw-r--r-- | util/meson.build | 2 |
2 files changed, 37 insertions, 0 deletions
diff --git a/util/cpuinfo-loongarch.c b/util/cpuinfo-loongarch.c new file mode 100644 index 0000000000..08b6d7460c --- /dev/null +++ b/util/cpuinfo-loongarch.c @@ -0,0 +1,35 @@ +/* + * SPDX-License-Identifier: GPL-2.0-or-later + * Host specific cpu identification for LoongArch. + */ + +#include "qemu/osdep.h" +#include "host/cpuinfo.h" + +#ifdef CONFIG_GETAUXVAL +# include <sys/auxv.h> +#else +# include "elf.h" +#endif +#include <asm/hwcap.h> + +unsigned cpuinfo; + +/* Called both as constructor and (possibly) via other constructors. */ +unsigned __attribute__((constructor)) cpuinfo_init(void) +{ + unsigned info = cpuinfo; + unsigned long hwcap; + + if (info) { + return info; + } + + hwcap = qemu_getauxval(AT_HWCAP); + + info = CPUINFO_ALWAYS; + info |= (hwcap & HWCAP_LOONGARCH_LSX ? CPUINFO_LSX : 0); + + cpuinfo = info; + return info; +} diff --git a/util/meson.build b/util/meson.build index 769b24f2e0..1bfff81087 100644 --- a/util/meson.build +++ b/util/meson.build @@ -113,6 +113,8 @@ if cpu == 'aarch64' util_ss.add(files('cpuinfo-aarch64.c')) elif cpu in ['x86', 'x86_64'] util_ss.add(files('cpuinfo-i386.c')) +elif cpu == 'loongarch64' + util_ss.add(files('cpuinfo-loongarch.c')) elif cpu in ['ppc', 'ppc64'] util_ss.add(files('cpuinfo-ppc.c')) endif |