From: "Rémi Denis-Courmont" <remi@remlab.net>
To: ffmpeg-devel@ffmpeg.org
Subject: [FFmpeg-devel] [PATCH 2/6] lavu/riscv: add forward-edge CFI landing pads
Date: Mon, 22 Jul 2024 22:38:14 +0300
Message-ID: <20240722193818.50824-2-remi@remlab.net> (raw)
In-Reply-To: <20240722193818.50824-1-remi@remlab.net>
---
libavutil/riscv/fixed_dsp_rvv.S | 6 ++++++
libavutil/riscv/float_dsp_rvv.S | 12 ++++++++++++
libavutil/riscv/lls_rvv.S | 1 +
3 files changed, 19 insertions(+)
diff --git a/libavutil/riscv/fixed_dsp_rvv.S b/libavutil/riscv/fixed_dsp_rvv.S
index 6bac5813b8..7a872f7763 100644
--- a/libavutil/riscv/fixed_dsp_rvv.S
+++ b/libavutil/riscv/fixed_dsp_rvv.S
@@ -21,6 +21,7 @@
#include "asm.S"
func ff_vector_fmul_window_scaled_rvv, zve64x
+ lpad 0
csrwi vxrm, 0
vsetvli t0, zero, e16, m1, ta, ma
sh2add a2, a4, a2
@@ -69,6 +70,7 @@ func ff_vector_fmul_window_scaled_rvv, zve64x
endfunc
func ff_vector_fmul_window_fixed_rvv, zve64x
+ lpad 0
csrwi vxrm, 0
vsetvli t0, zero, e16, m1, ta, ma
sh2add a2, a4, a2
@@ -113,6 +115,7 @@ func ff_vector_fmul_window_fixed_rvv, zve64x
endfunc
func ff_vector_fmul_fixed_rvv, zve32x
+ lpad 0
csrwi vxrm, 0
1:
vsetvli t0, a3, e32, m4, ta, ma
@@ -156,6 +159,7 @@ func ff_vector_fmul_reverse_fixed_rvv, zve32x
endfunc
func ff_vector_fmul_add_fixed_rvv, zve32x
+ lpad 0
csrwi vxrm, 0
1:
vsetvli t0, a4, e32, m8, ta, ma
@@ -176,6 +180,7 @@ func ff_vector_fmul_add_fixed_rvv, zve32x
endfunc
func ff_scalarproduct_fixed_rvv, zve64x
+ lpad 0
li t1, 1 << 30
vsetvli t0, zero, e64, m8, ta, ma
vmv.v.x v8, zero
@@ -199,6 +204,7 @@ endfunc
// (a0) = (a0) + (a1), (a1) = (a0) - (a1) [0..a2-1]
func ff_butterflies_fixed_rvv, zve32x
+ lpad 0
1:
vsetvli t0, a2, e32, m4, ta, ma
vle32.v v16, (a0)
diff --git a/libavutil/riscv/float_dsp_rvv.S b/libavutil/riscv/float_dsp_rvv.S
index 2f0ade6db6..e738268549 100644
--- a/libavutil/riscv/float_dsp_rvv.S
+++ b/libavutil/riscv/float_dsp_rvv.S
@@ -22,6 +22,7 @@
// (a0) = (a1) * (a2) [0..a3-1]
func ff_vector_fmul_rvv, zve32f
+ lpad 0
1:
vsetvli t0, a3, e32, m8, ta, ma
vle32.v v16, (a1)
@@ -39,6 +40,7 @@ endfunc
// (a0) += (a1) * fa0 [0..a2-1]
func ff_vector_fmac_scalar_rvv, zve32f
+ lpad 0
NOHWF fmv.w.x fa0, a2
NOHWF mv a2, a3
1:
@@ -58,6 +60,7 @@ endfunc
// (a0) = (a1) * fa0 [0..a2-1]
func ff_vector_fmul_scalar_rvv, zve32f
+ lpad 0
NOHWF fmv.w.x fa0, a2
NOHWF mv a2, a3
1:
@@ -74,6 +77,7 @@ NOHWF mv a2, a3
endfunc
func ff_vector_fmul_window_rvv, zve32f
+ lpad 0
// a0: dst, a1: src0, a2: src1, a3: window, a4: length
// e16/m2 and e32/m4 are possible but slower due to gather.
vsetvli t0, zero, e16, m1, ta, ma
@@ -114,6 +118,7 @@ endfunc
// (a0) = (a1) * (a2) + (a3) [0..a4-1]
func ff_vector_fmul_add_rvv, zve32f
+ lpad 0
1:
vsetvli t0, a4, e32, m8, ta, ma
vle32.v v8, (a1)
@@ -134,6 +139,7 @@ endfunc
// TODO factor vrsub, separate last iteration?
// (a0) = (a1) * reverse(a2) [0..a3-1]
func ff_vector_fmul_reverse_rvv, zve32f
+ lpad 0
// e16/m4 and e32/m8 are possible but slower due to gather.
vsetvli t0, zero, e16, m1, ta, ma
sh2add a2, a3, a2
@@ -160,6 +166,7 @@ endfunc
// (a0) = (a0) + (a1), (a1) = (a0) - (a1) [0..a2-1]
func ff_butterflies_float_rvv, zve32f
+ lpad 0
1:
vsetvli t0, a2, e32, m8, ta, ma
vle32.v v16, (a0)
@@ -178,6 +185,7 @@ endfunc
// a0 = (a0).(a1) [0..a2-1]
func ff_scalarproduct_float_rvv, zve32f
+ lpad 0
vsetvli t0, zero, e32, m8, ta, ma
vmv.v.x v8, zero
vmv.s.x v0, zero
@@ -200,6 +208,7 @@ endfunc
// (a0) = (a1) * (a2) [0..a3-1]
func ff_vector_dmul_rvv, zve64d
+ lpad 0
1:
vsetvli t0, a3, e64, m8, ta, ma
vle64.v v16, (a1)
@@ -217,6 +226,7 @@ endfunc
// (a0) += (a1) * fa0 [0..a2-1]
func ff_vector_dmac_scalar_rvv, zve64d
+ lpad 0
NOHWD fmv.d.x fa0, a2
NOHWD mv a2, a3
1:
@@ -235,6 +245,7 @@ endfunc
// (a0) = (a1) * fa0 [0..a2-1]
func ff_vector_dmul_scalar_rvv, zve64d
+ lpad 0
NOHWD fmv.d.x fa0, a2
NOHWD mv a2, a3
1:
@@ -251,6 +262,7 @@ NOHWD mv a2, a3
endfunc
func ff_scalarproduct_double_rvv, zve64f
+ lpad 0
vsetvli t0, zero, e64, m8, ta, ma
vmv.v.x v8, zero
vmv.s.x v0, zero
diff --git a/libavutil/riscv/lls_rvv.S b/libavutil/riscv/lls_rvv.S
index a36055bd7a..bd9f74ee5f 100644
--- a/libavutil/riscv/lls_rvv.S
+++ b/libavutil/riscv/lls_rvv.S
@@ -21,6 +21,7 @@
#include "asm.S"
func ff_lls_update_covariance_rvv, zve64d, zbb
+ lpad 0
vtype_vli t0, a2, t1, e64, ta, ma
vsetvl zero, a2, t0
vle64.v v8, (a1)
--
2.45.2
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next prev parent reply other threads:[~2024-07-22 19:38 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-07-22 19:38 [FFmpeg-devel] [PATCH 1/6] lavu/riscv: assembly for zicfilp LPAD Rémi Denis-Courmont
2024-07-22 19:38 ` Rémi Denis-Courmont [this message]
2024-07-22 19:38 ` [FFmpeg-devel] [PATCH 3/6] lavc/riscv: add forward-edge CFI landing pads Rémi Denis-Courmont
2024-07-22 19:38 ` [FFmpeg-devel] [PATCH 4/6] lavfi/riscv: " Rémi Denis-Courmont
2024-07-22 19:38 ` [FFmpeg-devel] [PATCH 5/6] sws/riscv: " Rémi Denis-Courmont
2024-07-22 19:38 ` [FFmpeg-devel] [PATCH 6/6] checkasm/riscv: " Rémi Denis-Courmont
2024-07-22 20:13 ` [FFmpeg-devel] [PATCH 7/8] lavu/riscv: align functions to 4 bytes Rémi Denis-Courmont
2024-07-22 20:13 ` [FFmpeg-devel] [PATCH 8/8] checkasm/riscv: align the landing pads Rémi Denis-Courmont
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