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* [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays
@ 2022-11-21 12:44 James Darnley
  2022-11-21 12:44 ` [FFmpeg-devel] [PATCH 2/3] avcodec/x86/v210: replace register use with named register James Darnley
                   ` (6 more replies)
  0 siblings, 7 replies; 10+ messages in thread
From: James Darnley @ 2022-11-21 12:44 UTC (permalink / raw)
  To: ffmpeg-devel

---
 tests/checkasm/v210enc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/checkasm/v210enc.c b/tests/checkasm/v210enc.c
index 9942e08137..9fb8321c25 100644
--- a/tests/checkasm/v210enc.c
+++ b/tests/checkasm/v210enc.c
@@ -72,8 +72,10 @@
             randomize_buffers(mask);                                               \
             call_ref(y0 + y_offset, u0 + uv_offset, v0 + uv_offset, dst0, width);  \
             call_new(y1 + y_offset, u1 + uv_offset, v1 + uv_offset, dst1, width);  \
-            if (memcmp(y0, y1, BUF_SIZE) || memcmp(u0, u1, BUF_SIZE / 2) ||        \
-                memcmp(v0, v1, BUF_SIZE / 2) || memcmp(dst0, dst1, width * 8 / 3)) \
+            if (memcmp(y0, y1, BUF_SIZE * sizeof(type))                            \
+                    || memcmp(u0, u1, BUF_SIZE * sizeof(type) / 2)                 \
+                    || memcmp(v0, v1, BUF_SIZE * sizeof(type) / 2)                 \
+                    || memcmp(dst0, dst1, width * 8 / 3))                          \
                 fail();                                                            \
             bench_new(y1 + y_offset, u1 + uv_offset, v1 + uv_offset, dst1, width); \
         }                                                                          \
-- 
2.38.0

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* [FFmpeg-devel] [PATCH 2/3] avcodec/x86/v210: replace register use with named register
  2022-11-21 12:44 [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
@ 2022-11-21 12:44 ` James Darnley
  2022-11-21 12:44 ` [FFmpeg-devel] [PATCH 3/3] avcodec/v210enc: add new 10-bit function for avx512 avx512icl James Darnley
                   ` (5 subsequent siblings)
  6 siblings, 0 replies; 10+ messages in thread
From: James Darnley @ 2022-11-21 12:44 UTC (permalink / raw)
  To: ffmpeg-devel

---
 libavcodec/x86/v210enc.asm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm
index afac238ede..c2ad3d72c0 100644
--- a/libavcodec/x86/v210enc.asm
+++ b/libavcodec/x86/v210enc.asm
@@ -62,7 +62,7 @@ SECTION .text
 
 ; v210_planar_pack_10(const uint16_t *y, const uint16_t *u, const uint16_t *v, uint8_t *dst, ptrdiff_t width)
 cglobal v210_planar_pack_10, 5, 5, 4+cpuflag(avx2), y, u, v, dst, width
-    lea     r0, [yq+2*widthq]
+    lea     yq, [yq+2*widthq]
     add     uq, widthq
     add     vq, widthq
     neg     widthq
-- 
2.38.0

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* [FFmpeg-devel] [PATCH 3/3] avcodec/v210enc: add new 10-bit function for avx512 avx512icl
  2022-11-21 12:44 [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
  2022-11-21 12:44 ` [FFmpeg-devel] [PATCH 2/3] avcodec/x86/v210: replace register use with named register James Darnley
@ 2022-11-21 12:44 ` James Darnley
  2022-11-21 14:12   ` Andreas Rheinhardt
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 1/5] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
                   ` (4 subsequent siblings)
  6 siblings, 1 reply; 10+ messages in thread
From: James Darnley @ 2022-11-21 12:44 UTC (permalink / raw)
  To: ffmpeg-devel

avx512 on Skylake-X (Xeon D-2123IT):
1.19x faster (970±91.2 vs. 817±104.4 decicycles) compared with avx2

avx512icl on Ice Lake (Xeon Silver 4316):
2.52x faster (1350±5.3 vs. 535±9.5 decicycles) compared with avx2
---
 libavcodec/x86/v210enc.asm    | 99 +++++++++++++++++++++++++++++++++++
 libavcodec/x86/v210enc_init.c | 12 +++++
 2 files changed, 111 insertions(+)

diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm
index c2ad3d72c0..9cee954619 100644
--- a/libavcodec/x86/v210enc.asm
+++ b/libavcodec/x86/v210enc.asm
@@ -56,6 +56,36 @@ v210enc_8_permd: dd 0,1,4,5, 1,2,5,6
 v210enc_8_mult: db 4, 0, 64, 0
 v210enc_8_mask: dd 255<<12
 
+icl_perm_y: ; vpermb does not set bytes to zero when the high bit is set unlike pshufb
+%assign i 0
+%rep 8
+    db -1,i+0,i+1,-1 , i+2,i+3,i+4,i+5
+    %assign i i+6
+%endrep
+
+icl_perm_uv: ; vpermb does not set bytes to zero when the high bit is set unlike pshufb
+%assign i 0
+%rep 4
+    db i+0,i+1,i+32,i+33 , -1,i+2,i+3,-1 , i+34,i+35,i+4,i+5 , -1,i+36,i+37,-1
+    %assign i i+6
+%endrep
+
+icl_perm_y_kmask:  times 8 db 0b1111_0110
+icl_perm_uv_kmask: times 8 db 0b0110_1111
+
+icl_shift_y:  times 10 dw 2,0,4
+              times 4 db 0 ; padding to 64 bytes
+icl_shift_uv: times 5 dw 0,2,4
+              times 2 db 0 ; padding to 32 bytes
+              times 5 dw 4,0,2
+              times 2 db 0 ; padding to 32 bytes
+
+v210enc_10_permd_y:  dd 0,1,2,-1 , 3,4,5,-1
+v210enc_10_shufb_y:  db -1,0,1,-1 , 2,3,4,5 , -1,6,7,-1 , 8,9,10,11
+v210enc_10_permd_uv: dd 0,1,4,5 , 1,2,5,6
+v210enc_10_shufb_uv: db 0,1, 8, 9 , -1,2,3,-1 , 10,11,4,5 , -1,12,13,-1
+                     db 2,3,10,11 , -1,4,5,-1 , 12,13,6,7 , -1,14,15,-1
+
 SECTION .text
 
 %macro v210_planar_pack_10 0
@@ -113,6 +143,75 @@ INIT_YMM avx2
 v210_planar_pack_10
 %endif
 
+%macro v210_planar_pack_10_new 0
+
+cglobal v210_planar_pack_10, 5, 5, 8+2*notcpuflag(avx512icl), y, u, v, dst, width
+    lea     yq, [yq+2*widthq]
+    add     uq, widthq
+    add     vq, widthq
+    neg     widthq
+
+    %if cpuflag(avx512icl)
+        movu  m6, [icl_perm_y]
+        movu  m7, [icl_perm_uv]
+        kmovq k1, [icl_perm_y_kmask]
+        kmovq k2, [icl_perm_uv_kmask]
+    %else
+        movu           m6, [v210enc_10_permd_y]
+        VBROADCASTI128 m7, [v210enc_10_shufb_y]
+        movu           m8, [v210enc_10_permd_uv]
+        movu           m9, [v210enc_10_shufb_uv]
+    %endif
+    movu  m2, [icl_shift_y]
+    movu  m3, [icl_shift_uv]
+    VBROADCASTI128 m4, [v210_enc_min_10] ; only ymm sized
+    VBROADCASTI128 m5, [v210_enc_max_10] ; only ymm sized
+
+    .loop:
+        movu m0, [yq + widthq*2]
+        %if cpuflag(avx512icl)
+            movu         ym1, [uq + widthq*1]
+            vinserti32x8 zm1, [vq + widthq*1], 1
+        %else
+            movu         xm1, [uq + widthq*1]
+            vinserti128  ym1, [vq + widthq*1], 1
+        %endif
+        CLIPW m0, m4, m5
+        CLIPW m1, m4, m5
+
+        vpsllvw m0, m2
+        vpsllvw m1, m3
+        %if cpuflag(avx512icl)
+            vpermb  m0{k1}{z}, m6, m0
+            vpermb  m1{k2}{z}, m7, m1
+        %else
+            vpermd m0, m6, m0
+            pshufb m0, m7
+            vpermd m1, m8, m1
+            pshufb m1, m9
+        %endif
+        por     m0, m1
+
+        movu  [dstq], m0
+        add     dstq, mmsize
+        add   widthq, (mmsize*3)/8
+    jl .loop
+RET
+
+%endmacro
+
+%if ARCH_X86_64
+%if HAVE_AVX512_EXTERNAL
+INIT_YMM avx512
+v210_planar_pack_10_new
+%endif
+%endif
+
+%if HAVE_AVX512ICL_EXTERNAL
+INIT_ZMM avx512icl
+v210_planar_pack_10_new
+%endif
+
 %macro v210_planar_pack_8 0
 
 ; v210_planar_pack_8(const uint8_t *y, const uint8_t *u, const uint8_t *v, uint8_t *dst, ptrdiff_t width)
diff --git a/libavcodec/x86/v210enc_init.c b/libavcodec/x86/v210enc_init.c
index 6e9f8c6e61..5d1ebcb893 100644
--- a/libavcodec/x86/v210enc_init.c
+++ b/libavcodec/x86/v210enc_init.c
@@ -37,6 +37,12 @@ void ff_v210_planar_pack_10_ssse3(const uint16_t *y, const uint16_t *u,
 void ff_v210_planar_pack_10_avx2(const uint16_t *y, const uint16_t *u,
                                  const uint16_t *v, uint8_t *dst,
                                  ptrdiff_t width);
+void ff_v210_planar_pack_10_avx512(const uint16_t *y, const uint16_t *u,
+                                   const uint16_t *v, uint8_t *dst,
+                                   ptrdiff_t width);
+void ff_v210_planar_pack_10_avx512icl(const uint16_t *y, const uint16_t *u,
+                                      const uint16_t *v, uint8_t *dst,
+                                      ptrdiff_t width);
 
 av_cold void ff_v210enc_init_x86(V210EncContext *s)
 {
@@ -60,10 +66,16 @@ av_cold void ff_v210enc_init_x86(V210EncContext *s)
     if (EXTERNAL_AVX512(cpu_flags)) {
         s->sample_factor_8  = 2;
         s->pack_line_8      = ff_v210_planar_pack_8_avx512;
+#ifdef ARCH_X86_64
+        s->sample_factor_10  = 2;
+        s->pack_line_10      = ff_v210_planar_pack_10_avx512;
+#endif
     }
 
     if (EXTERNAL_AVX512ICL(cpu_flags)) {
         s->sample_factor_8  = 4;
         s->pack_line_8      = ff_v210_planar_pack_8_avx512icl;
+        s->sample_factor_10 = 4;
+        s->pack_line_10     = ff_v210_planar_pack_10_avx512icl;
     }
 }
-- 
2.38.0

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^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [FFmpeg-devel] [PATCH 3/3] avcodec/v210enc: add new 10-bit function for avx512 avx512icl
  2022-11-21 12:44 ` [FFmpeg-devel] [PATCH 3/3] avcodec/v210enc: add new 10-bit function for avx512 avx512icl James Darnley
@ 2022-11-21 14:12   ` Andreas Rheinhardt
  2022-11-21 16:50     ` James Darnley
  0 siblings, 1 reply; 10+ messages in thread
From: Andreas Rheinhardt @ 2022-11-21 14:12 UTC (permalink / raw)
  To: ffmpeg-devel

James Darnley:
> avx512 on Skylake-X (Xeon D-2123IT):
> 1.19x faster (970±91.2 vs. 817±104.4 decicycles) compared with avx2
> 
> avx512icl on Ice Lake (Xeon Silver 4316):
> 2.52x faster (1350±5.3 vs. 535±9.5 decicycles) compared with avx2
> ---
>  libavcodec/x86/v210enc.asm    | 99 +++++++++++++++++++++++++++++++++++
>  libavcodec/x86/v210enc_init.c | 12 +++++
>  2 files changed, 111 insertions(+)
> 
> diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm
> index c2ad3d72c0..9cee954619 100644
> --- a/libavcodec/x86/v210enc.asm
> +++ b/libavcodec/x86/v210enc.asm
> @@ -56,6 +56,36 @@ v210enc_8_permd: dd 0,1,4,5, 1,2,5,6
>  v210enc_8_mult: db 4, 0, 64, 0
>  v210enc_8_mask: dd 255<<12
>  
> +icl_perm_y: ; vpermb does not set bytes to zero when the high bit is set unlike pshufb
> +%assign i 0
> +%rep 8
> +    db -1,i+0,i+1,-1 , i+2,i+3,i+4,i+5
> +    %assign i i+6
> +%endrep
> +
> +icl_perm_uv: ; vpermb does not set bytes to zero when the high bit is set unlike pshufb
> +%assign i 0
> +%rep 4
> +    db i+0,i+1,i+32,i+33 , -1,i+2,i+3,-1 , i+34,i+35,i+4,i+5 , -1,i+36,i+37,-1
> +    %assign i i+6
> +%endrep
> +
> +icl_perm_y_kmask:  times 8 db 0b1111_0110
> +icl_perm_uv_kmask: times 8 db 0b0110_1111
> +
> +icl_shift_y:  times 10 dw 2,0,4
> +              times 4 db 0 ; padding to 64 bytes
> +icl_shift_uv: times 5 dw 0,2,4
> +              times 2 db 0 ; padding to 32 bytes
> +              times 5 dw 4,0,2
> +              times 2 db 0 ; padding to 32 bytes
> +
> +v210enc_10_permd_y:  dd 0,1,2,-1 , 3,4,5,-1
> +v210enc_10_shufb_y:  db -1,0,1,-1 , 2,3,4,5 , -1,6,7,-1 , 8,9,10,11
> +v210enc_10_permd_uv: dd 0,1,4,5 , 1,2,5,6
> +v210enc_10_shufb_uv: db 0,1, 8, 9 , -1,2,3,-1 , 10,11,4,5 , -1,12,13,-1
> +                     db 2,3,10,11 , -1,4,5,-1 , 12,13,6,7 , -1,14,15,-1
> +
>  SECTION .text
>  
>  %macro v210_planar_pack_10 0
> @@ -113,6 +143,75 @@ INIT_YMM avx2
>  v210_planar_pack_10
>  %endif
>  
> +%macro v210_planar_pack_10_new 0
> +
> +cglobal v210_planar_pack_10, 5, 5, 8+2*notcpuflag(avx512icl), y, u, v, dst, width
> +    lea     yq, [yq+2*widthq]
> +    add     uq, widthq
> +    add     vq, widthq
> +    neg     widthq
> +
> +    %if cpuflag(avx512icl)
> +        movu  m6, [icl_perm_y]
> +        movu  m7, [icl_perm_uv]
> +        kmovq k1, [icl_perm_y_kmask]
> +        kmovq k2, [icl_perm_uv_kmask]
> +    %else
> +        movu           m6, [v210enc_10_permd_y]
> +        VBROADCASTI128 m7, [v210enc_10_shufb_y]
> +        movu           m8, [v210enc_10_permd_uv]
> +        movu           m9, [v210enc_10_shufb_uv]
> +    %endif
> +    movu  m2, [icl_shift_y]
> +    movu  m3, [icl_shift_uv]
> +    VBROADCASTI128 m4, [v210_enc_min_10] ; only ymm sized
> +    VBROADCASTI128 m5, [v210_enc_max_10] ; only ymm sized
> +
> +    .loop:
> +        movu m0, [yq + widthq*2]
> +        %if cpuflag(avx512icl)
> +            movu         ym1, [uq + widthq*1]
> +            vinserti32x8 zm1, [vq + widthq*1], 1
> +        %else
> +            movu         xm1, [uq + widthq*1]
> +            vinserti128  ym1, [vq + widthq*1], 1
> +        %endif
> +        CLIPW m0, m4, m5
> +        CLIPW m1, m4, m5
> +
> +        vpsllvw m0, m2
> +        vpsllvw m1, m3
> +        %if cpuflag(avx512icl)
> +            vpermb  m0{k1}{z}, m6, m0
> +            vpermb  m1{k2}{z}, m7, m1
> +        %else
> +            vpermd m0, m6, m0
> +            pshufb m0, m7
> +            vpermd m1, m8, m1
> +            pshufb m1, m9
> +        %endif
> +        por     m0, m1
> +
> +        movu  [dstq], m0
> +        add     dstq, mmsize
> +        add   widthq, (mmsize*3)/8
> +    jl .loop
> +RET
> +
> +%endmacro
> +
> +%if ARCH_X86_64
> +%if HAVE_AVX512_EXTERNAL
> +INIT_YMM avx512
> +v210_planar_pack_10_new
> +%endif
> +%endif
> +
> +%if HAVE_AVX512ICL_EXTERNAL
> +INIT_ZMM avx512icl
> +v210_planar_pack_10_new
> +%endif
> +
>  %macro v210_planar_pack_8 0
>  
>  ; v210_planar_pack_8(const uint8_t *y, const uint8_t *u, const uint8_t *v, uint8_t *dst, ptrdiff_t width)
> diff --git a/libavcodec/x86/v210enc_init.c b/libavcodec/x86/v210enc_init.c
> index 6e9f8c6e61..5d1ebcb893 100644
> --- a/libavcodec/x86/v210enc_init.c
> +++ b/libavcodec/x86/v210enc_init.c
> @@ -37,6 +37,12 @@ void ff_v210_planar_pack_10_ssse3(const uint16_t *y, const uint16_t *u,
>  void ff_v210_planar_pack_10_avx2(const uint16_t *y, const uint16_t *u,
>                                   const uint16_t *v, uint8_t *dst,
>                                   ptrdiff_t width);
> +void ff_v210_planar_pack_10_avx512(const uint16_t *y, const uint16_t *u,
> +                                   const uint16_t *v, uint8_t *dst,
> +                                   ptrdiff_t width);
> +void ff_v210_planar_pack_10_avx512icl(const uint16_t *y, const uint16_t *u,
> +                                      const uint16_t *v, uint8_t *dst,
> +                                      ptrdiff_t width);
>  
>  av_cold void ff_v210enc_init_x86(V210EncContext *s)
>  {
> @@ -60,10 +66,16 @@ av_cold void ff_v210enc_init_x86(V210EncContext *s)
>      if (EXTERNAL_AVX512(cpu_flags)) {
>          s->sample_factor_8  = 2;
>          s->pack_line_8      = ff_v210_planar_pack_8_avx512;
> +#ifdef ARCH_X86_64

ARCH_X86_64 is always defined. So checks of this type need to check with
#if.

> +        s->sample_factor_10  = 2;
> +        s->pack_line_10      = ff_v210_planar_pack_10_avx512;
> +#endif
>      }
>  
>      if (EXTERNAL_AVX512ICL(cpu_flags)) {
>          s->sample_factor_8  = 4;
>          s->pack_line_8      = ff_v210_planar_pack_8_avx512icl;
> +        s->sample_factor_10 = 4;
> +        s->pack_line_10     = ff_v210_planar_pack_10_avx512icl;
>      }
>  }

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^ permalink raw reply	[flat|nested] 10+ messages in thread

* Re: [FFmpeg-devel] [PATCH 3/3] avcodec/v210enc: add new 10-bit function for avx512 avx512icl
  2022-11-21 14:12   ` Andreas Rheinhardt
@ 2022-11-21 16:50     ` James Darnley
  0 siblings, 0 replies; 10+ messages in thread
From: James Darnley @ 2022-11-21 16:50 UTC (permalink / raw)
  To: ffmpeg-devel

> ARCH_X86_64 is always defined. So checks of this type need to check with #if.

Thanks.  I forgot the ffmpeg convention there.
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^ permalink raw reply	[flat|nested] 10+ messages in thread

* [FFmpeg-devel] [PATCH v2 1/5] checkasm/v210enc: test the entire width of 10-bit planar input arrays
  2022-11-21 12:44 [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
  2022-11-21 12:44 ` [FFmpeg-devel] [PATCH 2/3] avcodec/x86/v210: replace register use with named register James Darnley
  2022-11-21 12:44 ` [FFmpeg-devel] [PATCH 3/3] avcodec/v210enc: add new 10-bit function for avx512 avx512icl James Darnley
@ 2022-11-25 15:17 ` James Darnley
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 2/5] avcodec/x86/v210enc: replace register use with named register James Darnley
                   ` (3 subsequent siblings)
  6 siblings, 0 replies; 10+ messages in thread
From: James Darnley @ 2022-11-25 15:17 UTC (permalink / raw)
  To: ffmpeg-devel

---
 tests/checkasm/v210enc.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/tests/checkasm/v210enc.c b/tests/checkasm/v210enc.c
index 9942e08137..9fb8321c25 100644
--- a/tests/checkasm/v210enc.c
+++ b/tests/checkasm/v210enc.c
@@ -72,8 +72,10 @@
             randomize_buffers(mask);                                               \
             call_ref(y0 + y_offset, u0 + uv_offset, v0 + uv_offset, dst0, width);  \
             call_new(y1 + y_offset, u1 + uv_offset, v1 + uv_offset, dst1, width);  \
-            if (memcmp(y0, y1, BUF_SIZE) || memcmp(u0, u1, BUF_SIZE / 2) ||        \
-                memcmp(v0, v1, BUF_SIZE / 2) || memcmp(dst0, dst1, width * 8 / 3)) \
+            if (memcmp(y0, y1, BUF_SIZE * sizeof(type))                            \
+                    || memcmp(u0, u1, BUF_SIZE * sizeof(type) / 2)                 \
+                    || memcmp(v0, v1, BUF_SIZE * sizeof(type) / 2)                 \
+                    || memcmp(dst0, dst1, width * 8 / 3))                          \
                 fail();                                                            \
             bench_new(y1 + y_offset, u1 + uv_offset, v1 + uv_offset, dst1, width); \
         }                                                                          \
-- 
2.38.0

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^ permalink raw reply	[flat|nested] 10+ messages in thread

* [FFmpeg-devel] [PATCH v2 2/5] avcodec/x86/v210enc: replace register use with named register
  2022-11-21 12:44 [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
                   ` (2 preceding siblings ...)
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 1/5] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
@ 2022-11-25 15:17 ` James Darnley
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 3/5] avcodec/v210enc: add new 10-bit function for avx512 avx512icl James Darnley
                   ` (2 subsequent siblings)
  6 siblings, 0 replies; 10+ messages in thread
From: James Darnley @ 2022-11-25 15:17 UTC (permalink / raw)
  To: ffmpeg-devel

---
 libavcodec/x86/v210enc.asm | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm
index afac238ede..c2ad3d72c0 100644
--- a/libavcodec/x86/v210enc.asm
+++ b/libavcodec/x86/v210enc.asm
@@ -62,7 +62,7 @@ SECTION .text
 
 ; v210_planar_pack_10(const uint16_t *y, const uint16_t *u, const uint16_t *v, uint8_t *dst, ptrdiff_t width)
 cglobal v210_planar_pack_10, 5, 5, 4+cpuflag(avx2), y, u, v, dst, width
-    lea     r0, [yq+2*widthq]
+    lea     yq, [yq+2*widthq]
     add     uq, widthq
     add     vq, widthq
     neg     widthq
-- 
2.38.0

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^ permalink raw reply	[flat|nested] 10+ messages in thread

* [FFmpeg-devel] [PATCH v2 3/5] avcodec/v210enc: add new 10-bit function for avx512 avx512icl
  2022-11-21 12:44 [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
                   ` (3 preceding siblings ...)
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 2/5] avcodec/x86/v210enc: replace register use with named register James Darnley
@ 2022-11-25 15:17 ` James Darnley
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 4/5] avcodec/x86/v210enc: expand and correct comments James Darnley
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 5/5] avcodec/x86/v210enc: remove unneeded instruction James Darnley
  6 siblings, 0 replies; 10+ messages in thread
From: James Darnley @ 2022-11-25 15:17 UTC (permalink / raw)
  To: ffmpeg-devel

avx512 on Skylake-X (Xeon D-2123IT):
1.19x faster (970±91.2 vs. 817±104.4 decicycles) compared with avx2

avx512icl on Ice Lake (Xeon Silver 4316):
2.52x faster (1350±5.3 vs. 535±9.5 decicycles) compared with avx2
---
 libavcodec/x86/v210enc.asm    | 99 +++++++++++++++++++++++++++++++++++
 libavcodec/x86/v210enc_init.c | 12 +++++
 2 files changed, 111 insertions(+)

diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm
index c2ad3d72c0..552164a8be 100644
--- a/libavcodec/x86/v210enc.asm
+++ b/libavcodec/x86/v210enc.asm
@@ -56,6 +56,36 @@ v210enc_8_permd: dd 0,1,4,5, 1,2,5,6
 v210enc_8_mult: db 4, 0, 64, 0
 v210enc_8_mask: dd 255<<12
 
+icl_perm_y: ; vpermb does not set bytes to zero when the high bit is set unlike pshufb
+%assign i 0
+%rep 8
+    db -1,i+0,i+1,-1 , i+2,i+3,i+4,i+5
+    %assign i i+6
+%endrep
+
+icl_perm_uv: ; vpermb does not set bytes to zero when the high bit is set unlike pshufb
+%assign i 0
+%rep 4
+    db i+0,i+1,i+32,i+33 , -1,i+2,i+3,-1 , i+34,i+35,i+4,i+5 , -1,i+36,i+37,-1
+    %assign i i+6
+%endrep
+
+icl_perm_y_kmask:  times 8 db 0b1111_0110
+icl_perm_uv_kmask: times 8 db 0b0110_1111
+
+icl_shift_y:  times 10 dw 2,0,4
+              times 4 db 0 ; padding to 64 bytes
+icl_shift_uv: times 5 dw 0,2,4
+              times 2 db 0 ; padding to 32 bytes
+              times 5 dw 4,0,2
+              times 2 db 0 ; padding to 32 bytes
+
+v210enc_10_permd_y:  dd 0,1,2,-1 , 3,4,5,-1
+v210enc_10_shufb_y:  db -1,0,1,-1 , 2,3,4,5 , -1,6,7,-1 , 8,9,10,11
+v210enc_10_permd_uv: dd 0,1,4,5 , 1,2,5,6
+v210enc_10_shufb_uv: db 0,1, 8, 9 , -1,2,3,-1 , 10,11,4,5 , -1,12,13,-1
+                     db 2,3,10,11 , -1,4,5,-1 , 12,13,6,7 , -1,14,15,-1
+
 SECTION .text
 
 %macro v210_planar_pack_10 0
@@ -113,6 +143,75 @@ INIT_YMM avx2
 v210_planar_pack_10
 %endif
 
+%macro v210_planar_pack_10_new 0
+
+cglobal v210_planar_pack_10, 5, 5, 8+2*notcpuflag(avx512icl), y, u, v, dst, width
+    lea     yq, [yq+2*widthq]
+    add     uq, widthq
+    add     vq, widthq
+    neg     widthq
+
+    %if cpuflag(avx512icl)
+        movu  m6, [icl_perm_y]
+        movu  m7, [icl_perm_uv]
+        kmovq k1, [icl_perm_y_kmask]
+        kmovq k2, [icl_perm_uv_kmask]
+    %else
+        movu           m6, [v210enc_10_permd_y]
+        VBROADCASTI128 m7, [v210enc_10_shufb_y]
+        movu           m8, [v210enc_10_permd_uv]
+        movu           m9, [v210enc_10_shufb_uv]
+    %endif
+    movu  m2, [icl_shift_y]
+    movu  m3, [icl_shift_uv]
+    VBROADCASTI128 m4, [v210_enc_min_10] ; only ymm sized
+    VBROADCASTI128 m5, [v210_enc_max_10] ; only ymm sized
+
+    .loop:
+        movu m0, [yq + widthq*2]
+        %if cpuflag(avx512icl)
+            movu         ym1, [uq + widthq*1]
+            vinserti32x8 zm1, [vq + widthq*1], 1
+        %else
+            movu         xm1, [uq + widthq*1]
+            vinserti128  ym1, [vq + widthq*1], 1
+        %endif
+        CLIPW m0, m4, m5
+        CLIPW m1, m4, m5
+
+        vpsllvw m0, m2
+        vpsllvw m1, m3
+        %if cpuflag(avx512icl)
+            vpermb  m0{k1}{z}, m6, m0 ; make space for uv where the k-mask sets to zero
+            vpermb  m1{k2}{z}, m7, m1 ; interleave uv and make space for y where the k-mask sets to zero
+        %else
+            vpermd m0, m6, m0
+            pshufb m0, m7
+            vpermd m1, m8, m1
+            pshufb m1, m9
+        %endif
+        por     m0, m1
+
+        movu  [dstq], m0
+        add     dstq, mmsize
+        add   widthq, (mmsize*3)/8
+    jl .loop
+RET
+
+%endmacro
+
+%if ARCH_X86_64
+%if HAVE_AVX512_EXTERNAL
+INIT_YMM avx512
+v210_planar_pack_10_new
+%endif
+%endif
+
+%if HAVE_AVX512ICL_EXTERNAL
+INIT_ZMM avx512icl
+v210_planar_pack_10_new
+%endif
+
 %macro v210_planar_pack_8 0
 
 ; v210_planar_pack_8(const uint8_t *y, const uint8_t *u, const uint8_t *v, uint8_t *dst, ptrdiff_t width)
diff --git a/libavcodec/x86/v210enc_init.c b/libavcodec/x86/v210enc_init.c
index 6e9f8c6e61..44f22ca7fe 100644
--- a/libavcodec/x86/v210enc_init.c
+++ b/libavcodec/x86/v210enc_init.c
@@ -37,6 +37,12 @@ void ff_v210_planar_pack_10_ssse3(const uint16_t *y, const uint16_t *u,
 void ff_v210_planar_pack_10_avx2(const uint16_t *y, const uint16_t *u,
                                  const uint16_t *v, uint8_t *dst,
                                  ptrdiff_t width);
+void ff_v210_planar_pack_10_avx512(const uint16_t *y, const uint16_t *u,
+                                   const uint16_t *v, uint8_t *dst,
+                                   ptrdiff_t width);
+void ff_v210_planar_pack_10_avx512icl(const uint16_t *y, const uint16_t *u,
+                                      const uint16_t *v, uint8_t *dst,
+                                      ptrdiff_t width);
 
 av_cold void ff_v210enc_init_x86(V210EncContext *s)
 {
@@ -60,10 +66,16 @@ av_cold void ff_v210enc_init_x86(V210EncContext *s)
     if (EXTERNAL_AVX512(cpu_flags)) {
         s->sample_factor_8  = 2;
         s->pack_line_8      = ff_v210_planar_pack_8_avx512;
+#if ARCH_X86_64
+        s->sample_factor_10  = 2;
+        s->pack_line_10      = ff_v210_planar_pack_10_avx512;
+#endif
     }
 
     if (EXTERNAL_AVX512ICL(cpu_flags)) {
         s->sample_factor_8  = 4;
         s->pack_line_8      = ff_v210_planar_pack_8_avx512icl;
+        s->sample_factor_10 = 4;
+        s->pack_line_10     = ff_v210_planar_pack_10_avx512icl;
     }
 }
-- 
2.38.0

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^ permalink raw reply	[flat|nested] 10+ messages in thread

* [FFmpeg-devel] [PATCH v2 4/5] avcodec/x86/v210enc: expand and correct comments
  2022-11-21 12:44 [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
                   ` (4 preceding siblings ...)
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 3/5] avcodec/v210enc: add new 10-bit function for avx512 avx512icl James Darnley
@ 2022-11-25 15:17 ` James Darnley
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 5/5] avcodec/x86/v210enc: remove unneeded instruction James Darnley
  6 siblings, 0 replies; 10+ messages in thread
From: James Darnley @ 2022-11-25 15:17 UTC (permalink / raw)
  To: ffmpeg-devel

---
 libavcodec/x86/v210enc.asm | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm
index 552164a8be..d3639cd440 100644
--- a/libavcodec/x86/v210enc.asm
+++ b/libavcodec/x86/v210enc.asm
@@ -314,7 +314,7 @@ cglobal v210_planar_pack_8, 5, 5, 7+notcpuflag(avx512icl), y, u, v, dst, width
             movu         ym1, [yq + 2*widthq]
             vinserti32x4  m1, [uq + 1*widthq], 2
             vinserti32x4  m1, [vq + 1*widthq], 3
-            vpermb        m1, m2, m1                 ; uyv0 yuy0 vyu0 yvy0
+            vpermb        m1, m2, m1                 ; uyvx yuyx vyux yvyx
         %else
             movq         xm0, [uq + 1*widthq]        ; uuuu uuxx
             movq         xm1, [vq + 1*widthq]        ; vvvv vvxx
@@ -325,10 +325,10 @@ cglobal v210_planar_pack_8, 5, 5, 7+notcpuflag(avx512icl), y, u, v, dst, width
         %endif
         CLIPUB       m1, m4, m5
 
-        pmaddubsw  m0, m1, m3
-        pslld      m1,  4
+        pmaddubsw  m0, m1, m3 ; shift high and low samples of each dword and mask out other bits
+        pslld      m1,  4     ; shift center sample of each dword
         %if cpuflag(avx512)
-            vpternlogd m0, m1, m6, 0xd8 ; C?B:A
+            vpternlogd m0, m1, m6, 0xd8 ; C?B:A ; merge and mask out bad bits from B
         %else
             pand       m1, m6, m1
             pandn      m0, m6, m0
-- 
2.38.0

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^ permalink raw reply	[flat|nested] 10+ messages in thread

* [FFmpeg-devel] [PATCH v2 5/5] avcodec/x86/v210enc: remove unneeded instruction
  2022-11-21 12:44 [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
                   ` (5 preceding siblings ...)
  2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 4/5] avcodec/x86/v210enc: expand and correct comments James Darnley
@ 2022-11-25 15:17 ` James Darnley
  6 siblings, 0 replies; 10+ messages in thread
From: James Darnley @ 2022-11-25 15:17 UTC (permalink / raw)
  To: ffmpeg-devel

---
 libavcodec/x86/v210enc.asm | 1 -
 1 file changed, 1 deletion(-)

diff --git a/libavcodec/x86/v210enc.asm b/libavcodec/x86/v210enc.asm
index d3639cd440..daf5f2ab81 100644
--- a/libavcodec/x86/v210enc.asm
+++ b/libavcodec/x86/v210enc.asm
@@ -331,7 +331,6 @@ cglobal v210_planar_pack_8, 5, 5, 7+notcpuflag(avx512icl), y, u, v, dst, width
             vpternlogd m0, m1, m6, 0xd8 ; C?B:A ; merge and mask out bad bits from B
         %else
             pand       m1, m6, m1
-            pandn      m0, m6, m0
             por        m0, m0, m1
         %endif
 
-- 
2.38.0

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^ permalink raw reply	[flat|nested] 10+ messages in thread

end of thread, other threads:[~2022-11-25 15:20 UTC | newest]

Thread overview: 10+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-11-21 12:44 [FFmpeg-devel] [PATCH 1/3] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
2022-11-21 12:44 ` [FFmpeg-devel] [PATCH 2/3] avcodec/x86/v210: replace register use with named register James Darnley
2022-11-21 12:44 ` [FFmpeg-devel] [PATCH 3/3] avcodec/v210enc: add new 10-bit function for avx512 avx512icl James Darnley
2022-11-21 14:12   ` Andreas Rheinhardt
2022-11-21 16:50     ` James Darnley
2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 1/5] checkasm/v210enc: test the entire width of 10-bit planar input arrays James Darnley
2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 2/5] avcodec/x86/v210enc: replace register use with named register James Darnley
2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 3/5] avcodec/v210enc: add new 10-bit function for avx512 avx512icl James Darnley
2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 4/5] avcodec/x86/v210enc: expand and correct comments James Darnley
2022-11-25 15:17 ` [FFmpeg-devel] [PATCH v2 5/5] avcodec/x86/v210enc: remove unneeded instruction James Darnley

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