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lavu/riscv: add Zvbb CPU capability detection 

This requires Linux kernel version 6.8 or later.
This commit is contained in:
Rémi Denis-Courmont 2024-05-07 22:09:27 +03:00
parent 01c5f4ad9f
commit 5d8f62feb5
1 changed files with 7 additions and 0 deletions
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7
libavutil/riscv/cpu.c
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@ -54,6 +54,10 @@ int ff_get_cpu_flags_riscv(void)
ret |= AV_CPU_FLAG_RVB_ADDR;
if (pairs[1].value & RISCV_HWPROBE_EXT_ZBB)
ret |= AV_CPU_FLAG_RVB_BASIC;
#ifdef RISCV_HWPROBE_EXT_ZVBB
if (pairs[1].value & RISCV_HWPROBE_EXT_ZVBB)
ret |= AV_CPU_FLAG_RV_ZVBB;
#endif
} else
#endif
#if HAVE_GETAUXVAL
@ -105,6 +109,9 @@ int ff_get_cpu_flags_riscv(void)
ret |= AV_CPU_FLAG_RVV_F64;
#endif
#endif
#endif
#ifdef __riscv_zvbb
ret |= AV_CPU_FLAG_RV_ZVBB;
#endif
return ret;