mirror of https://git.ffmpeg.org/ffmpeg.git
aarch64: Add OpenBSD runtime detection of dotprod and i8mm using sysctl
Signed-off-by: Brad Smith <brad@comstyle.com>
This commit is contained in:
parent
23531c9776
commit
41190da9e1
|
@ -65,6 +65,44 @@ static int detect_flags(void)
|
||||||
return flags;
|
return flags;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#elif defined(__OpenBSD__)
|
||||||
|
#include <machine/armreg.h>
|
||||||
|
#include <machine/cpu.h>
|
||||||
|
#include <sys/types.h>
|
||||||
|
#include <sys/sysctl.h>
|
||||||
|
|
||||||
|
static int detect_flags(void)
|
||||||
|
{
|
||||||
|
int flags = 0;
|
||||||
|
|
||||||
|
#ifdef CPU_ID_AA64ISAR0
|
||||||
|
int mib[2];
|
||||||
|
uint64_t isar0;
|
||||||
|
uint64_t isar1;
|
||||||
|
size_t len;
|
||||||
|
|
||||||
|
mib[0] = CTL_MACHDEP;
|
||||||
|
mib[1] = CPU_ID_AA64ISAR0;
|
||||||
|
len = sizeof(isar0);
|
||||||
|
if (sysctl(mib, 2, &isar0, &len, NULL, 0) != -1) {
|
||||||
|
if (ID_AA64ISAR0_DP(isar0) >= ID_AA64ISAR0_DP_IMPL)
|
||||||
|
flags |= AV_CPU_FLAG_DOTPROD;
|
||||||
|
}
|
||||||
|
|
||||||
|
mib[0] = CTL_MACHDEP;
|
||||||
|
mib[1] = CPU_ID_AA64ISAR1;
|
||||||
|
len = sizeof(isar1);
|
||||||
|
if (sysctl(mib, 2, &isar1, &len, NULL, 0) != -1) {
|
||||||
|
#ifdef ID_AA64ISAR1_I8MM_IMPL
|
||||||
|
if (ID_AA64ISAR1_I8MM(isar1) >= ID_AA64ISAR1_I8MM_IMPL)
|
||||||
|
flags |= AV_CPU_FLAG_I8MM;
|
||||||
|
#endif
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
return flags;
|
||||||
|
}
|
||||||
|
|
||||||
#elif defined(_WIN32)
|
#elif defined(_WIN32)
|
||||||
#include <windows.h>
|
#include <windows.h>
|
||||||
|
|
||||||
|
|
Loading…
Reference in New Issue