Mesa (master): gallium/llvmpipe: add an optimised 32-bit memset
GitLab Mirror
gitlab-mirror at kemper.freedesktop.org
Wed Apr 1 21:17:30 UTC 2020
Module: Mesa
Branch: master
Commit: 2a2fd4c5308dee51d48630863255f1c6a04768a9
URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=2a2fd4c5308dee51d48630863255f1c6a04768a9
Author: Dave Airlie <airlied at redhat.com>
Date: Wed Apr 1 08:44:08 2020 +1000
gallium/llvmpipe: add an optimised 32-bit memset
This might have other users beyond filling/clearing buffers,
increase a fullscreen 4k gears from 68->74 fps on my Ryzen
since gears is really just a clear benchmark, and this helps
clearing.
Reviewed-by: Marek Olšák <marek.olsak at amd.com>
Tested-by: Marge Bot <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4394>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/4394>
---
src/gallium/auxiliary/util/u_surface.c | 10 +++-----
src/gallium/drivers/llvmpipe/lp_rast.c | 6 ++---
src/util/Makefile.sources | 1 +
src/util/meson.build | 1 +
src/util/u_memset.h | 47 ++++++++++++++++++++++++++++++++++
5 files changed, 54 insertions(+), 11 deletions(-)
diff --git a/src/gallium/auxiliary/util/u_surface.c b/src/gallium/auxiliary/util/u_surface.c
index 847c0008079..527e6662f0b 100644
--- a/src/gallium/auxiliary/util/u_surface.c
+++ b/src/gallium/auxiliary/util/u_surface.c
@@ -41,7 +41,7 @@
#include "util/u_rect.h"
#include "util/u_surface.h"
#include "util/u_pack_color.h"
-
+#include "util/u_memset.h"
/**
* Initialize a pipe_surface object. 'view' is considered to have
@@ -141,9 +141,7 @@ util_fill_rect(ubyte * dst,
break;
case 4:
for (i = 0; i < height; i++) {
- uint32_t *row = (uint32_t *)dst;
- for (j = 0; j < width; j++)
- *row++ = uc->ui[0];
+ util_memset32(dst, uc->ui[0], width);
dst += dst_stride;
}
break;
@@ -492,9 +490,7 @@ util_clear_depth_stencil_texture(struct pipe_context *pipe,
case 4:
if (!need_rmw) {
for (i = 0; i < height; i++) {
- uint32_t *row = (uint32_t *)dst_map;
- for (j = 0; j < width; j++)
- *row++ = (uint32_t) zstencil;
+ util_memset32(dst_map, (uint32_t)zstencil, width);
dst_map += dst_stride;
}
}
diff --git a/src/gallium/drivers/llvmpipe/lp_rast.c b/src/gallium/drivers/llvmpipe/lp_rast.c
index ef783ea6fb1..ad55ed7be79 100644
--- a/src/gallium/drivers/llvmpipe/lp_rast.c
+++ b/src/gallium/drivers/llvmpipe/lp_rast.c
@@ -33,7 +33,7 @@
#include "util/u_pack_color.h"
#include "util/u_string.h"
#include "util/u_thread.h"
-
+#include "util/u_memset.h"
#include "util/os_time.h"
#include "lp_scene_queue.h"
@@ -236,9 +236,7 @@ lp_rast_clear_zstencil(struct lp_rasterizer_task *task,
case 4:
if (clear_mask == 0xffffffff) {
for (i = 0; i < height; i++) {
- uint32_t *row = (uint32_t *)dst;
- for (j = 0; j < width; j++)
- *row++ = clear_value;
+ util_memset32(dst, clear_value, width);
dst += dst_stride;
}
}
diff --git a/src/util/Makefile.sources b/src/util/Makefile.sources
index 644839bd09a..0e8fbb7ee85 100644
--- a/src/util/Makefile.sources
+++ b/src/util/Makefile.sources
@@ -119,6 +119,7 @@ MESA_UTIL_FILES := \
os_memory_stdc.h \
os_memory.h \
u_memory.h \
+ u_memset.h \
u_mm.h \
u_mm.c \
vma.c \
diff --git a/src/util/meson.build b/src/util/meson.build
index 0a2b2e4284e..ff25a9ea851 100644
--- a/src/util/meson.build
+++ b/src/util/meson.build
@@ -112,6 +112,7 @@ files_mesa_util = files(
'u_vector.h',
'u_math.c',
'u_math.h',
+ 'u_memset.h',
'u_mm.c',
'u_mm.h',
'u_debug.c',
diff --git a/src/util/u_memset.h b/src/util/u_memset.h
new file mode 100644
index 00000000000..df8cf80b64a
--- /dev/null
+++ b/src/util/u_memset.h
@@ -0,0 +1,47 @@
+/**************************************************************************
+ *
+ * Copyright 2020 Red Hat
+ * All Rights Reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sub license, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+ * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS AND/OR ITS SUPPLIERS BE LIABLE FOR
+ * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ **************************************************************************/
+
+#include "pipe/p_config.h"
+
+static inline void *
+util_memset32(void *s, uint32_t ui, size_t n)
+{
+#if defined(PIPE_CC_GCC) && defined(PIPE_ARCH_X86_64)
+ long d0, d1;
+ __asm__ volatile("rep\n\t"
+ "stosl"
+ : "=&c" (d0), "=&D" (d1)
+ : "a" (ui), "1" (s), "0" (n)
+ : "memory");
+ return s;
+#else
+ uint32_t *xs = (uint32_t *)s;
+ while (n--)
+ *xs++ = ui;
+ return s;
+#endif
+}
More information about the mesa-commit
mailing list