xf86-video-intel: 2 commits - src/sna/kgem.c test/.gitignore test/lowlevel-blt-bench.c test/Makefile.am test/test_display.c test/test.h

Chris Wilson ickle at kemper.freedesktop.org
Tue Feb 5 14:08:31 PST 2013


 src/sna/kgem.c            |   17 ++---
 test/.gitignore           |    1 
 test/Makefile.am          |    2 
 test/lowlevel-blt-bench.c |  135 ++++++++++++++++++++++++++++++++++++++++++++++
 test/test.h               |    5 +
 test/test_display.c       |   17 +++++
 6 files changed, 166 insertions(+), 11 deletions(-)

New commits:
commit a8cfddd280b5220f23565b21c91f3f7dd10bbe91
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Feb 5 22:06:03 2013 +0000

    sna: Tidy buffer allocation size assertions
    
    Rather than perilously update a local variable with the allocated size,
    just use the size of the bo in the assertion that is large enough to
    satisfy the allocation request.
    
    Reported-by: Jiri Slaby <jirislaby at gmail.com>
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

diff --git a/src/sna/kgem.c b/src/sna/kgem.c
index 36b245d..1086c3f 100644
--- a/src/sna/kgem.c
+++ b/src/sna/kgem.c
@@ -5117,8 +5117,6 @@ struct kgem_bo *kgem_create_buffer(struct kgem *kgem,
 		if (bo->mem) {
 			if (flags & KGEM_BUFFER_WRITE)
 				kgem_bo_sync__cpu(kgem, &bo->base);
-
-			alloc = num_pages(&bo->base);
 			goto init;
 		} else {
 			bo->base.refcnt = 0; /* for valgrind */
@@ -5190,7 +5188,6 @@ struct kgem_bo *kgem_create_buffer(struct kgem *kgem,
 
 			bo->mem = kgem_bo_map(kgem, &bo->base);
 			if (bo->mem) {
-				alloc = num_pages(&bo->base);
 				if (IS_CPU_MAP(bo->base.map))
 				    flags &= ~KGEM_BUFFER_INPLACE;
 				goto init;
@@ -5213,7 +5210,6 @@ struct kgem_bo *kgem_create_buffer(struct kgem *kgem,
 			if (flags & KGEM_BUFFER_WRITE)
 				kgem_bo_sync__cpu(kgem, &bo->base);
 			flags &= ~KGEM_BUFFER_INPLACE;
-			alloc = num_pages(&bo->base);
 			goto init;
 		}
 
@@ -5236,8 +5232,7 @@ struct kgem_bo *kgem_create_buffer(struct kgem *kgem,
 	if (old) {
 		DBG(("%s: reusing ordinary handle %d for io\n",
 		     __FUNCTION__, old->handle));
-		alloc = num_pages(old);
-		bo = buffer_alloc_with_data(alloc);
+		bo = buffer_alloc_with_data(num_pages(old));
 		if (bo == NULL)
 			return NULL;
 
@@ -5264,7 +5259,6 @@ struct kgem_bo *kgem_create_buffer(struct kgem *kgem,
 			DBG(("%s: reusing handle=%d for buffer\n",
 			     __FUNCTION__, old->handle));
 
-			alloc = num_pages(old);
 			init_buffer_from_bo(bo, old);
 		} else {
 			uint32_t handle = gem_create(kgem->fd, alloc);
@@ -5293,7 +5287,7 @@ struct kgem_bo *kgem_create_buffer(struct kgem *kgem,
 
 		DBG(("%s: failing back to new pwrite buffer\n", __FUNCTION__));
 		old = &bo->base;
-		bo = buffer_alloc_with_data(alloc);
+		bo = buffer_alloc_with_data(num_pages(old));
 		if (bo == NULL) {
 			free(old);
 			return NULL;
@@ -5310,7 +5304,8 @@ struct kgem_bo *kgem_create_buffer(struct kgem *kgem,
 init:
 	bo->base.io = true;
 	assert(bo->base.refcnt == 1);
-	assert(num_pages(&bo->base) == alloc);
+	assert(num_pages(&bo->base) >= alloc);
+	assert(num_pages(&bo->base) >= NUM_PAGES(size));
 	assert(!bo->need_io || !bo->base.needs_flush);
 	assert(!bo->need_io || bo->base.domain != DOMAIN_GPU);
 	assert(bo->mem);
@@ -5323,8 +5318,8 @@ init:
 	assert(list_is_empty(&bo->base.list));
 	list_add(&bo->base.list, &kgem->batch_buffers);
 
-	DBG(("%s(pages=%d) new handle=%d, used=%d, write=%d\n",
-	     __FUNCTION__, alloc, bo->base.handle, bo->used, bo->write));
+	DBG(("%s(pages=%d [%d]) new handle=%d, used=%d, write=%d\n",
+	     __FUNCTION__, num_pages(&bo->base), alloc, bo->base.handle, bo->used, bo->write));
 
 done:
 	bo->used = ALIGN(bo->used, UPLOAD_ALIGNMENT);
commit 82dc91e8c24a1fbbf03dcf89a3955319b3399ea0
Author: Chris Wilson <chris at chris-wilson.co.uk>
Date:   Tue Feb 5 21:50:43 2013 +0000

    test: Add a very basic blt benchmark
    
    Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>

diff --git a/test/.gitignore b/test/.gitignore
index e24e3fd..d3e59c5 100644
--- a/test/.gitignore
+++ b/test/.gitignore
@@ -13,3 +13,4 @@ render-copyarea
 render-copyarea-size
 render-copy-alphaless
 mixed-stress
+lowlevel-blt-bench
diff --git a/test/Makefile.am b/test/Makefile.am
index c1dd0e9..0f9bd7d 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -21,6 +21,8 @@ stress_TESTS = \
 
 check_PROGRAMS = $(stress_TESTS)
 
+noinst_PROGRAMS = lowlevel-blt-bench
+
 AM_CFLAGS = @CWARNFLAGS@ @X11_CFLAGS@ @DRM_CFLAGS@
 LDADD = libtest.la @X11_LIBS@ -lXfixes @DRM_LIBS@ -lrt
 
diff --git a/test/lowlevel-blt-bench.c b/test/lowlevel-blt-bench.c
new file mode 100644
index 0000000..0cea0a8
--- /dev/null
+++ b/test/lowlevel-blt-bench.c
@@ -0,0 +1,135 @@
+/*
+ * Copyright © 2009 Nokia Corporation
+ * Copyright © 2010 Movial Creative Technologies Oy
+ * Copyright © 2013 Intel Corporation
+ *
+ * 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, sublicense,
+ * 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 NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS 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 <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <X11/X.h>
+#include <X11/Xutil.h> /* for XDestroyImage */
+#include <pixman.h> /* for pixman blt functions */
+
+#include "test.h"
+
+static const struct format {
+	const char *name;
+	pixman_format_code_t pixman_format;
+} formats[] = {
+	{ "a8r8g8b8", PIXMAN_a8r8g8b8 },
+	{ "x8r8g8b8", PIXMAN_x8r8g8b8 },
+	{ "a8", PIXMAN_a8 },
+	{ "a4", PIXMAN_a4 },
+	{ "a1", PIXMAN_a1 },
+};
+
+static const struct op {
+	const char *name;
+} ops[] = {
+	[PictOpClear] = { "Clear" },
+	[PictOpSrc] = { "Src" },
+	[PictOpDst] = { "Dst" },
+	[PictOpOver] = { "Over" },
+	[PictOpOverReverse] = { "OverReverse" },
+	[PictOpIn] = { "In" },
+	[PictOpInReverse] = { "InReverse" },
+	[PictOpOut] = { "Out" },
+	[PictOpOutReverse] = { "OutReverse" },
+	[PictOpAtop] = { "Atop" },
+	[PictOpAtopReverse] = { "AtopReverse" },
+	[PictOpXor] = { "Xor" },
+	[PictOpAdd] = { "Add" },
+	[PictOpSaturate] = { "Saturate" },
+};
+
+static double _bench(struct test_display *t, enum target target_type,
+		     int op, int src_format,
+		     int loops)
+{
+	XRenderColor render_color = { 0x8000, 0x8000, 0x8000, 0x8000 };
+	struct test_target target;
+	Pixmap pixmap;
+	Picture picture;
+	struct timespec tv;
+	double elapsed;
+
+	test_target_create_render(t, target_type, &target);
+	XRenderFillRectangle(t->dpy, PictOpClear, target.picture, &render_color,
+			     0, 0, target.width, target.height);
+
+	pixmap = XCreatePixmap(t->dpy, t->root,
+			       target.width, target.height,
+			       PIXMAN_FORMAT_DEPTH(formats[src_format].pixman_format));
+
+	picture = XRenderCreatePicture(t->dpy, pixmap,
+				       XRenderFindStandardFormat(t->dpy, src_format),
+				       0, NULL);
+	XRenderFillRectangle(t->dpy, PictOpSrc, picture, &render_color,
+			     0, 0, target.width, target.height);
+
+	test_timer_start(t, &tv);
+	while (loops--)
+		XRenderComposite(t->dpy, op,
+				 picture, 0, target.picture,
+				 0, 0,
+				 0, 0,
+				 0, 0,
+				 target.width, target.height);
+	elapsed = test_timer_stop(t, &tv);
+
+	XRenderFreePicture(t->dpy, picture);
+	XFreePixmap(t->dpy, pixmap);
+	test_target_destroy_render(t, &target);
+
+	return elapsed;
+}
+
+static void bench(struct test *t, enum target target, int op, int sf)
+{
+	double real, ref;
+
+	ref = _bench(&t->ref, target, op, sf, 1000);
+	real = _bench(&t->real, target, op, sf, 1000);
+
+	fprintf (stdout, "Testing %s with %s: ref=%f, real=%f\n",
+		 formats[sf].name, ops[op].name, ref, real);
+}
+
+int main(int argc, char **argv)
+{
+	struct test test;
+	int op, sf;
+
+	test_init(&test, argc, argv);
+
+	for (op = 0; op < sizeof(ops)/sizeof(ops[0]); op++) {
+		for (sf = 0; sf < sizeof(formats)/sizeof(formats[0]); sf++)
+			bench(&test, ROOT, op, sf);
+		fprintf (stdout, "\n");
+	}
+
+	return 0;
+}
diff --git a/test/test.h b/test/test.h
index 1e3995b..7ef4dca 100644
--- a/test/test.h
+++ b/test/test.h
@@ -2,6 +2,8 @@
 #define TEST_H
 
 #include <stdint.h>
+#include <time.h>
+
 #include <X11/Xlib.h>
 #include <X11/extensions/XShm.h>
 #include <X11/extensions/Xrender.h>
@@ -107,6 +109,9 @@ static inline uint32_t color(uint8_t red, uint8_t green, uint8_t blue, uint8_t a
 	return alpha << 24 | ra >> 8 << 16 | ga >> 8 << 8 | ba >> 8;
 }
 
+void test_timer_start(struct test_display *t, struct timespec *tv);
+double test_timer_stop(struct test_display *t, struct timespec *tv);
+
 #ifndef MAX
 #define MAX(a,b) ((a) > (b) ? (a) : (b))
 #endif
diff --git a/test/test_display.c b/test/test_display.c
index ad3e40b..b5e7e06 100644
--- a/test/test_display.c
+++ b/test/test_display.c
@@ -148,3 +148,20 @@ void test_init(struct test *test, int argc, char **argv)
 	memset(test, 0, sizeof(*test));
 	test_get_displays(argc, argv, &test->real, &test->ref);
 }
+
+void test_timer_start(struct test_display *t, struct timespec *tv)
+{
+	clock_gettime(CLOCK_MONOTONIC, tv);
+}
+
+double test_timer_stop(struct test_display *t, struct timespec *tv)
+{
+	XImage *image;
+	struct timespec now;
+
+	image = XGetImage(t->dpy, t->root, 0, 0, 1, 1, AllPlanes, ZPixmap);
+	clock_gettime(CLOCK_MONOTONIC, &now);
+	XDestroyImage(image);
+
+	return (now.tv_sec - tv->tv_sec) + 1e-9*(now.tv_nsec - tv->tv_nsec);
+}


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