| Message ID | 20240605093213.2191929-2-maobibo@loongson.cn (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Add simd optimization with function buffer_is_zero | expand |
On 5/6/24 11:32, Bibo Mao wrote: > Lasx is 256bit vector FPU capability, lsx is 128bit vector VFP. lsx > is added already, lasx is added here. > > Signed-off-by: Bibo Mao <maobibo@loongson.cn> > --- > host/include/loongarch64/host/cpuinfo.h | 1 + > util/cpuinfo-loongarch.c | 1 + > 2 files changed, 2 insertions(+) > > diff --git a/host/include/loongarch64/host/cpuinfo.h b/host/include/loongarch64/host/cpuinfo.h > index fab664a10b..d7bf27501d 100644 > --- a/host/include/loongarch64/host/cpuinfo.h > +++ b/host/include/loongarch64/host/cpuinfo.h > @@ -8,6 +8,7 @@ > > #define CPUINFO_ALWAYS (1u << 0) /* so cpuinfo is nonzero */ > #define CPUINFO_LSX (1u << 1) > +#define CPUINFO_LASX (1u << 2) > > /* Initialized with a constructor. */ > extern unsigned cpuinfo; > diff --git a/util/cpuinfo-loongarch.c b/util/cpuinfo-loongarch.c > index 08b6d7460c..bb1f7f698b 100644 > --- a/util/cpuinfo-loongarch.c > +++ b/util/cpuinfo-loongarch.c > @@ -29,6 +29,7 @@ unsigned __attribute__((constructor)) cpuinfo_init(void) > > info = CPUINFO_ALWAYS; > info |= (hwcap & HWCAP_LOONGARCH_LSX ? CPUINFO_LSX : 0); > + info |= (hwcap & HWCAP_LOONGARCH_LASX ? CPUINFO_LASX : 0); > > cpuinfo = info; > return info; This is https://lore.kernel.org/qemu-devel/20240527211912.14060-6-richard.henderson@linaro.org/
On 2024/6/5 下午7:53, Philippe Mathieu-Daudé wrote: > On 5/6/24 11:32, Bibo Mao wrote: >> Lasx is 256bit vector FPU capability, lsx is 128bit vector VFP. lsx >> is added already, lasx is added here. >> >> Signed-off-by: Bibo Mao <maobibo@loongson.cn> >> --- >> host/include/loongarch64/host/cpuinfo.h | 1 + >> util/cpuinfo-loongarch.c | 1 + >> 2 files changed, 2 insertions(+) >> >> diff --git a/host/include/loongarch64/host/cpuinfo.h >> b/host/include/loongarch64/host/cpuinfo.h >> index fab664a10b..d7bf27501d 100644 >> --- a/host/include/loongarch64/host/cpuinfo.h >> +++ b/host/include/loongarch64/host/cpuinfo.h >> @@ -8,6 +8,7 @@ >> #define CPUINFO_ALWAYS (1u << 0) /* so cpuinfo is nonzero */ >> #define CPUINFO_LSX (1u << 1) >> +#define CPUINFO_LASX (1u << 2) >> /* Initialized with a constructor. */ >> extern unsigned cpuinfo; >> diff --git a/util/cpuinfo-loongarch.c b/util/cpuinfo-loongarch.c >> index 08b6d7460c..bb1f7f698b 100644 >> --- a/util/cpuinfo-loongarch.c >> +++ b/util/cpuinfo-loongarch.c >> @@ -29,6 +29,7 @@ unsigned __attribute__((constructor)) >> cpuinfo_init(void) >> info = CPUINFO_ALWAYS; >> info |= (hwcap & HWCAP_LOONGARCH_LSX ? CPUINFO_LSX : 0); >> + info |= (hwcap & HWCAP_LOONGARCH_LASX ? CPUINFO_LASX : 0); >> cpuinfo = info; >> return info; > > This is > https://lore.kernel.org/qemu-devel/20240527211912.14060-6-richard.henderson@linaro.org/ oops, I did not notice this. And I will drop patch 1 and refresh the patch based on this weblink. Regards Bibo Mao
diff --git a/host/include/loongarch64/host/cpuinfo.h b/host/include/loongarch64/host/cpuinfo.h index fab664a10b..d7bf27501d 100644 --- a/host/include/loongarch64/host/cpuinfo.h +++ b/host/include/loongarch64/host/cpuinfo.h @@ -8,6 +8,7 @@ #define CPUINFO_ALWAYS (1u << 0) /* so cpuinfo is nonzero */ #define CPUINFO_LSX (1u << 1) +#define CPUINFO_LASX (1u << 2) /* Initialized with a constructor. */ extern unsigned cpuinfo; diff --git a/util/cpuinfo-loongarch.c b/util/cpuinfo-loongarch.c index 08b6d7460c..bb1f7f698b 100644 --- a/util/cpuinfo-loongarch.c +++ b/util/cpuinfo-loongarch.c @@ -29,6 +29,7 @@ unsigned __attribute__((constructor)) cpuinfo_init(void) info = CPUINFO_ALWAYS; info |= (hwcap & HWCAP_LOONGARCH_LSX ? CPUINFO_LSX : 0); + info |= (hwcap & HWCAP_LOONGARCH_LASX ? CPUINFO_LASX : 0); cpuinfo = info; return info;
Lasx is 256bit vector FPU capability, lsx is 128bit vector VFP. lsx is added already, lasx is added here. Signed-off-by: Bibo Mao <maobibo@loongson.cn> --- host/include/loongarch64/host/cpuinfo.h | 1 + util/cpuinfo-loongarch.c | 1 + 2 files changed, 2 insertions(+)