context_basic: the most stressful context test to date.

this context test requiring libdrm updates

Signed-off-by: Ben Widawsky <ben@bwidawsk.net>

tests/Makefile.am

@@ -68,6 +68,7 @@ TESTS_progs = \
 	gem_ctx_bad_destroy \
 	gem_ctx_exec \
 	gem_ctx_bad_exec \
+	gem_ctx_basic \
 	$(NULL)
 
 # IMPORTANT: The ZZ_ tests need to be run last!
@@ -125,3 +126,5 @@ gem_fence_thrash_CFLAGS = $(AM_CFLAGS) $(THREAD_CFLAGS)
 gem_fence_thrash_LDADD = $(LDADD) -lpthread
 
 gem_wait_render_timeout_LDADD = $(LDADD) -lrt
+
+gem_ctx_basic_LDADD = $(LDADD) -lpthread

tests/gem_ctx_basic.c

@@ -0,0 +1,158 @@
+/*
+ * 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@bwidawsk.net>
+ *
+ */
+
+/*
+ * This test is useful for finding memory and refcount leaks.
+ */
+
+#include <pthread.h>
+#include "rendercopy.h"
+
+/* options */
+int num_contexts = 10;
+int uncontexted = 0; /* test only context create/destroy */
+int multiple_fds = 1;
+int iter = 10000;
+
+/* globals */
+pthread_t *threads;
+int devid;
+int fd;
+int use_rendercpy = 1;
+
+static void init_buffer(drm_intel_bufmgr *bufmgr,
+			struct scratch_buf *buf,
+			uint32_t size)
+{
+	buf->bo = drm_intel_bo_alloc(bufmgr, "", size, 4096);
+	buf->size = size;
+	assert(buf->bo);
+	buf->tiling = I915_TILING_NONE;
+	buf->stride = 4096;
+}
+
+static void *work(void *arg)
+{
+	struct intel_batchbuffer *batch;
+	drm_intel_context *context;
+	drm_intel_bufmgr *bufmgr;
+	int td_fd;
+	int i;
+
+	if (multiple_fds)
+		td_fd = fd = drm_open_any();
+	else
+		td_fd = fd;
+
+	assert(td_fd >= 0);
+
+	bufmgr = drm_intel_bufmgr_gem_init(td_fd, 4096);
+	batch = intel_batchbuffer_alloc(bufmgr, devid);
+	context = drm_intel_gem_context_create(bufmgr);
+
+	for (i = 0; i < iter; i++) {
+		struct scratch_buf src, dst;
+		uint32_t batch_len;
+
+		init_buffer(bufmgr, &src, 4096);
+		init_buffer(bufmgr, &dst, 4096);
+
+
+		if (uncontexted) {
+			gen6_render_copyfunc(batch, &src, 0, 0, 0, 0, &dst, 0, 0);
+		} else {
+			int ret;
+			ret = drm_intel_bo_subdata(batch->bo, 0, 4096, batch->buffer);
+			assert(ret == 0);
+			intel_batchbuffer_flush_with_context(batch, context);
+		}
+	}
+
+	drm_intel_gem_context_destroy(context);
+	intel_batchbuffer_free(batch);
+	drm_intel_bufmgr_destroy(bufmgr);
+
+	if (multiple_fds)
+		close(td_fd);
+
+	pthread_exit(NULL);
+}
+
+static void parse(int argc, char *argv[])
+{
+	int opt;
+	while ((opt = getopt(argc, argv, "i:c:n:muh?")) != -1) {
+		switch (opt) {
+		case 'i':
+			iter = atoi(optarg);
+			break;
+		case 'c':
+			num_contexts = atoi(optarg);
+			break;
+		case 'm':
+			multiple_fds = 1;
+			break;
+		case 'u':
+			uncontexted = 1;
+			break;
+		case 'h':
+		case '?':
+		default:
+			exit(EXIT_SUCCESS);
+			break;
+		}
+	}
+}
+
+int main(int argc, char *argv[])
+{
+	void *ret;
+	int i;
+
+	fd = drm_open_any();
+	devid = intel_get_drm_devid(fd);
+
+	if (!IS_GEN6(devid))
+		use_rendercpy = 0;
+
+	parse(argc, argv);
+
+	threads = calloc(num_contexts, sizeof(*threads));
+
+	for (i = 0; i < num_contexts; i++)
+		pthread_create(&threads[i], NULL, work, NULL);
+
+	for (i = 0; i < num_contexts; i++) {
+		pthread_join(threads[i], &ret);
+		free(ret);
+	}
+
+	free(threads);
+	close(fd);
+
+	exit(EXIT_SUCCESS);
+}