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ff3ca68472
This update enables the new machine learning features: https://opus-codec.org/demo/opus-1.5/ Runtime detection patches for ARMv6, ARMv7 and Aarch64 by fuz@ PR: 277537
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
--- celt/arm/armcpu.c.orig 2024-03-01 07:55:09 UTC
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+++ celt/arm/armcpu.c
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@@ -191,6 +191,54 @@ opus_uint32 opus_cpu_capabilities(void)
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return flags;
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}
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+#elif defined(__FreeBSD__)
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+#include <sys/auxv.h>
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+
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+opus_uint32 opus_cpu_capabilities(void)
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+{
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+ long hwcap = 0;
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+ opus_uint32 flags = 0;
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+
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+# if defined(OPUS_ARM_MAY_HAVE_MEDIA) \
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+ || defined(OPUS_ARM_MAY_HAVE_NEON) || defined(OPUS_ARM_MAY_HAVE_NEON_INTR)
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+ /* FreeBSD required armv6+, always supported media instructions */
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+ flags |= OPUS_CPU_ARM_MEDIA_FLAG;
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+# endif
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+
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+ elf_aux_info(AT_HWCAP, &hwcap, sizeof hwcap);
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+
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+# if defined(OPUS_ARM_MAY_HAVE_EDSP) || defined(OPUS_ARM_MAY_HAVE_MEDIA) \
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+ || defined(OPUS_ARM_MAY_HAVE_NEON) || defined(OPUS_ARM_MAY_HAVE_NEON_INTR)
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+# ifdef HWCAP_EDSP
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+ if (hwcap & HWCAP_EDSP)
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+ flags |= OPUS_CPU_ARM_EDSP_FLAG;
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+# endif
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+
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+# if defined(OPUS_ARM_MAY_HAVE_NEON) || defined(OPUS_ARM_MAY_HAVE_NEON_INTR)
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+# ifdef HWCAP_NEON
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+ if (hwcap & HWCAP_NEON)
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+ flags |= OPUS_CPU_ARM_NEON_FLAG;
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+# elif defined(HWCAP_ASIMD)
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+ if (hwcap & HWCAP_ASIMD)
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+ flags |= OPUS_CPU_ARM_NEON_FLAG | OPUS_CPU_ARM_MEDIA_FLAG | OPUS_CPU_ARM_EDSP_FLAG;
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+# endif
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+# endif
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+# if defined(OPUS_ARM_MAY_HAVE_DOTPROD) && defined(HWCAP_ASIMDDP)
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+ if (hwcap & HWCAP_ASIMDDP)
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+ flags |= OPUS_CPU_ARM_DOTPROD_FLAG;
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+# endif
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+# endif
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+
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+#if defined(OPUS_ARM_PRESUME_AARCH64_NEON_INTR)
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+ flags |= OPUS_CPU_ARM_EDSP_FLAG | OPUS_CPU_ARM_MEDIA_FLAG | OPUS_CPU_ARM_NEON_FLAG;
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+# if defined(OPUS_ARM_PRESUME_DOTPROD)
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+ flags |= OPUS_CPU_ARM_DOTPROD_FLAG;
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+# endif
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+#endif
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+
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+ return (flags);
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+}
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+
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#else
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/* The feature registers which can tell us what the processor supports are
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* accessible in priveleged modes only, so we can't have a general user-space
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