[Intel-gfx] [PATCH] gpu-tools: nonblocking map test

[Ben Widawsky]

Cc: Daniel Vetter <daniel.vetter at ffwll.ch>
Cc: "Kilarski, Bernard R" <bernard.r.kilarski at intel.com>
Signed-off-by: Ben Widawsky <ben at bwidawsk.net>
---
 tests/Makefile.am  |    1 +
 tests/gem_wo_map.c |  237 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 tests/test.sh      |   16 ++++
 3 files changed, 254 insertions(+), 0 deletions(-)
 create mode 100644 tests/gem_wo_map.c
 create mode 100755 tests/test.sh

diff --git a/tests/Makefile.am b/tests/Makefile.am
index 4d5230c..b7020f1 100644
--- a/tests/Makefile.am
+++ b/tests/Makefile.am
@@ -51,6 +51,7 @@ TESTS = getversion \
 	gem_double_irq_loop \
 	gem_ring_sync_loop \
 	gem_pipe_control_store_loop \
+	gem_wo_map \
 	$(NULL)
 
 HANG = \
diff --git a/tests/gem_wo_map.c b/tests/gem_wo_map.c
new file mode 100644
index 0000000..7c2beb4
--- /dev/null
+++ b/tests/gem_wo_map.c
@@ -0,0 +1,237 @@
+/*
+ * Copyright © 2011 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.
+ *
+ * Authors:
+ *    Ben Widawsky <ben at bwidawsk.net>
+ *
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <pthread.h>
+#include "drm.h"
+#include "i915_drm.h"
+#include "drmtest.h"
+#include "intel_bufmgr.h"
+#include "intel_batchbuffer.h"
+#include "intel_gpu_tools.h"
+
+static drm_intel_bufmgr *bufmgr;
+struct intel_batchbuffer *batch;
+drm_intel_bo *src, *dst;
+int fd;
+pthread_cond_t cond = PTHREAD_COND_INITIALIZER;
+int num_writes = 1;
+
+#define NUM_MAPS 128 * 1024
+#define NUM_BLITS 128 * 1024
+#define SURFACE_SIZE (1<<20)
+#define SURFACE_PAGEES (SURFACE_SIZE >> 12)
+#define SURFACE_PAGES (SURFACE_SIZE >> 12)
+
+bool thread_ret;
+
+/* acts like a gpu memcpy */
+static void
+blit(void)
+{
+	uint32_t pitch = 4096;
+	uint32_t lines = SURFACE_SIZE / pitch;
+	uint32_t line_width = pitch;
+
+	BEGIN_BATCH(8);
+	OUT_BATCH((2<<29) | (0x43<<22) | (0x3<<20) | 4);
+	OUT_BATCH((0x3<<24) | (0xcc<<16) | pitch);
+	OUT_BATCH((lines<<16) | line_width);
+	OUT_RELOC(dst, I915_GEM_DOMAIN_RENDER, I915_GEM_DOMAIN_RENDER, 0);
+	OUT_BATCH(pitch);
+	OUT_RELOC(src, I915_GEM_DOMAIN_RENDER, 0, 0);
+	ADVANCE_BATCH();
+
+	intel_batchbuffer_flush(batch);
+}
+
+static inline int
+get_offset(void)
+{
+	return (rand() % SURFACE_PAGES) * 4096;
+}
+
+static void
+touch_page(char * const base)
+{
+	int i = 0;
+	for(i = 0; i < num_writes; i++) {
+		base[get_offset()] = 1;
+	}
+}
+
+static void *
+blits(void *arg)
+{
+	int i = 0;
+	for (i = 0; i < NUM_BLITS; i++) {
+		blit();
+		usleep(100);
+	}
+	pthread_exit(NULL);
+}
+
+static void *
+maps(void *arg)
+{
+	int i = 0;
+	for (i = 0; i < NUM_MAPS; i++) {
+		drm_intel_bo_map(src, 1);
+		touch_page(src->virtual);
+		drm_intel_bo_unmap(src);
+	}
+	pthread_exit(NULL);
+}
+
+static void *
+maps_nb(void *arg)
+{
+	int crap;
+	int i = 0;
+	for (i = 0; i < NUM_MAPS; i++) {
+		drm_intel_gem_bo_map_nonblocking(src, &crap);
+		touch_page(src->virtual);
+		drm_intel_gem_bo_unmap_nonblocking(src);
+	}
+	pthread_exit(NULL);
+}
+
+static void *
+functional_test_nb(void *arg)
+{
+	int crap;
+	drm_intel_gem_bo_map_nonblocking(src, &crap);
+	((char *)src->virtual)[1000] = 1;
+	drm_intel_gem_bo_unmap_nonblocking(src);
+	blit();
+	drm_intel_bo_wait_rendering(batch->bo);
+
+	drm_intel_bo_map(dst, 0);
+	thread_ret = (((char *)dst->virtual)[1000] == 1);
+	drm_intel_bo_unmap(dst);
+	pthread_exit(&thread_ret);
+}
+
+static void *
+functional_test(void *arg)
+{
+	drm_intel_bo_map(src, 1);
+	((char *)src->virtual)[1000] = 1;
+	drm_intel_bo_unmap(src);
+	blit();
+	drm_intel_bo_wait_rendering(batch->bo);
+
+	drm_intel_bo_map(dst, 0);
+	thread_ret = (((char *)dst->virtual)[1000] == 1);
+	drm_intel_bo_unmap(dst);
+	pthread_exit(&thread_ret);
+}
+
+typedef void * (*thread_function)(void *);
+thread_function ffuncs[2] = {functional_test, functional_test_nb};
+thread_function sfuncs[2] = {maps, maps_nb};
+
+static void usage(const char *name)
+{
+	fprintf(stderr, "Usage: %s [-n non blocking] "
+			"[-f function test] "
+			"[-c count]\n", name);
+}
+
+int main(int argc, char **argv)
+{
+	pthread_t blit_thread;
+	pthread_t map_thread;
+	int test = 0;
+	int non_block = 0;
+	char opt;
+	bool ret[1];
+
+	while ((opt = getopt(argc, argv, "nfc:")) != -1) {
+		switch(opt) {
+		case 'c':
+			num_writes = atoi(optarg);
+			break;
+		case 'f':
+			test = 2;
+			break;
+		case 'n':
+			non_block = 1;
+			break;
+		case 'h':
+		case '?':
+		default:
+			usage(argv[0]);
+			exit(EXIT_FAILURE);
+		}
+	}
+
+	srandom(0xdeadbeef);
+	fd = drm_open_any();
+
+	bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+	drm_intel_bufmgr_gem_enable_reuse(bufmgr);
+	batch = intel_batchbuffer_alloc(bufmgr, intel_get_drm_devid(fd));
+
+	src = drm_intel_bo_alloc(bufmgr, "src", SURFACE_SIZE, 4096);
+	dst = drm_intel_bo_alloc(bufmgr, "dst", SURFACE_SIZE, 4096);
+
+	switch (test) {
+	case 2:
+		pthread_create(&map_thread, NULL, ffuncs[non_block], NULL);
+		pthread_join(map_thread, (void **)&ret);
+		assert(*ret == true);
+		break;
+	default:
+		pthread_create(&blit_thread, NULL, blits, NULL);
+		pthread_create(&map_thread, NULL, sfuncs[non_block], NULL);
+		pthread_join(map_thread, NULL);
+		/* We don't want to time blit performance for this benchmark,
+		 * though it is relevant.
+		 */
+		pthread_join(blit_thread, NULL);
+		break;
+	}
+
+	intel_batchbuffer_free(batch);
+	drm_intel_bufmgr_destroy(bufmgr);
+
+	close(fd);
+
+	return 0;
+}
diff --git a/tests/test.sh b/tests/test.sh
new file mode 100755
index 0000000..9ffdf3a
--- /dev/null
+++ b/tests/test.sh
@@ -0,0 +1,16 @@
+#!/bin/sh
+
+echo "Map non block"
+time ./gem_wo_map -n -c 500
+time ./gem_wo_map -n -c 500
+time ./gem_wo_map -n -c 500
+time ./gem_wo_map -n -c 500
+time ./gem_wo_map -n -c 500
+time ./gem_wo_map -n -c 500
+echo "Map"
+time ./gem_wo_map -c 500
+time ./gem_wo_map -c 500
+time ./gem_wo_map -c 500
+time ./gem_wo_map -c 500
+time ./gem_wo_map -c 500
+time ./gem_wo_map -c 500
-- 
1.7.6.3