[FFmpeg-devel] [PATCHv2 0/6] RISC-V CPU extensions

[Rémi Denis-Courmont]

	Hi,

This adds configure, compile-time, run-time detection for RISC-V scalar
and vector extensions. Also a couple of scalar optimisations.

----------------------------------------------------------------
Rémi Denis-Courmont (6):
      lavu/cpu: detect RISC-V base extensions
      lavu/cpu: CPU flags for the RISC-V Vector extension
      configure: probe RISC-V Vector extension
      lavu/riscv: initial common header for assembler macros
      lavc/audiodsp: add RISC-V F float vector clip
      lavc/pixblockdsp: RISC-V scalar optimisations

 Makefile                            |   2 +-
 configure                           |  15 +++++
 ffbuild/arch.mak                    |   2 +
 libavcodec/audiodsp.c               |   2 +
 libavcodec/audiodsp.h               |   1 +
 libavcodec/pixblockdsp.c            |   2 +
 libavcodec/pixblockdsp.h            |   2 +
 libavcodec/riscv/Makefile           |   4 ++
 libavcodec/riscv/audiodsp_init.c    |  31 +++++++++++
 libavcodec/riscv/audiodsp_rvf.S     |  46 +++++++++++++++
 libavcodec/riscv/pixblockdsp_init.c |  43 ++++++++++++++
 libavcodec/riscv/pixblockdsp_rvi.S  |  57 +++++++++++++++++++
 libavutil/cpu.c                     |  13 +++++
 libavutil/cpu.h                     |   9 +++
 libavutil/cpu_internal.h            |   3 +
 libavutil/riscv/Makefile            |   1 +
 libavutil/riscv/asm.S               |  74 ++++++++++++++++++++++++
 libavutil/riscv/cpu.c               | 108 ++++++++++++++++++++++++++++++++++++
 tests/checkasm/checkasm.c           |   8 +++
 19 files changed, 422 insertions(+), 1 deletion(-)
 create mode 100644 libavcodec/riscv/Makefile
 create mode 100644 libavcodec/riscv/audiodsp_init.c
 create mode 100644 libavcodec/riscv/audiodsp_rvf.S
 create mode 100644 libavcodec/riscv/pixblockdsp_init.c
 create mode 100644 libavcodec/riscv/pixblockdsp_rvi.S
 create mode 100644 libavutil/riscv/Makefile
 create mode 100644 libavutil/riscv/asm.S
 create mode 100644 libavutil/riscv/cpu.c

-- 
Rémi Denis-Courmont
http://www.remlab.net/