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Code Issues Releases Activity

lavu/floatdsp: RISC-V V vector_dmac_scalar

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Rémi Denis-Courmont 2022-09-26 17:52:33 +03:00 committed by Lynne
parent c3db27ba95
commit d120ab5b91
2 changed files with 21 additions and 0 deletions
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3
libavutil/riscv/float_dsp_init.c
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@ -34,6 +34,8 @@ void ff_vector_fmul_scalar_rvv(float *dst, const float *src, float mul,
void ff_vector_dmul_rvv(double *dst, const double *src0, const double *src1, void ff_vector_dmul_rvv(double *dst, const double *src0, const double *src1,
int len); int len);
void ff_vector_dmac_scalar_rvv(double *dst, const double *src, double mul,
int len);
void ff_vector_dmul_scalar_rvv(double *dst, const double *src, double mul, void ff_vector_dmul_scalar_rvv(double *dst, const double *src, double mul,
int len); int len);
@ -50,6 +52,7 @@ av_cold void ff_float_dsp_init_riscv(AVFloatDSPContext *fdsp)
if (flags & AV_CPU_FLAG_RVV_F64) { if (flags & AV_CPU_FLAG_RVV_F64) {
fdsp->vector_dmul = ff_vector_dmul_rvv; fdsp->vector_dmul = ff_vector_dmul_rvv;
fdsp->vector_dmac_scalar = ff_vector_dmac_scalar_rvv;
fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_rvv; fdsp->vector_dmul_scalar = ff_vector_dmul_scalar_rvv;
} }
#endif #endif

18
libavutil/riscv/float_dsp_rvv.S
View File

@ -91,6 +91,24 @@ func ff_vector_dmul_rvv, zve64d
ret ret
endfunc endfunc
// (a0) += (a1) * fa0 [0..a2-1]
func ff_vector_dmac_scalar_rvv, zve64d
NOHWD fmv.d.x fa0, a2
NOHWD mv a2, a3
1:
vsetvli t0, a2, e64, m1, ta, ma
vle64.v v24, (a1)
sub a2, a2, t0
vle64.v v16, (a0)
sh3add a1, t0, a1
vfmacc.vf v16, fa0, v24
vse64.v v16, (a0)
sh3add a0, t0, a0
bnez a2, 1b
ret
endfunc
// (a0) = (a1) * fa0 [0..a2-1] // (a0) = (a1) * fa0 [0..a2-1]
func ff_vector_dmul_scalar_rvv, zve64d func ff_vector_dmul_scalar_rvv, zve64d
NOHWD fmv.d.x fa0, a2 NOHWD fmv.d.x fa0, a2