cl: Add test for checking the behavior of unused mappings

Submitted by Bruno Jimenez on June 13, 2014, 7:31 p.m.

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Message ID 1402687884-4729-1-git-send-email-brunojimen@gmail.com
State New
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Commit Message

Bruno Jimenez June 13, 2014, 7:31 p.m.
OpenCL 1.2 allows that buffers that aren't used by kernels to remain
mapped while said kernel is executed.
---
 tests/cl.py                               |   1 +
 tests/cl/custom/CMakeLists.cl.txt         |   1 +
 tests/cl/custom/behavior_of_unused_maps.c | 162 ++++++++++++++++++++++++++++++
 3 files changed, 164 insertions(+)
 create mode 100644 tests/cl/custom/behavior_of_unused_maps.c

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diff --git a/tests/cl.py b/tests/cl.py
index 7360e6d..9de77cc 100644
--- a/tests/cl.py
+++ b/tests/cl.py
@@ -47,6 +47,7 @@  add_plain_test(custom, 'r600 create release buffer bug', ['cl-custom-r600-create
 add_plain_test(custom, 'Alignment checker', ['cl-custom-alignment-checker'])
 add_plain_test(custom, 'r600 mapping bug', ['cl-custom-r600-mapping-bug'])
 add_plain_test(custom, 'behavior of read maps', ['cl-custom-behavior-of-read-maps'])
+add_plain_test(custom, 'behavior of unused maps', ['cl-custom-behavior-of-unused-maps'])
 add_plain_test(custom, 'Buffer flags', ['cl-custom-buffer-flags'])
 
 # API
diff --git a/tests/cl/custom/CMakeLists.cl.txt b/tests/cl/custom/CMakeLists.cl.txt
index 9d3c4ab..e8c0fdc 100644
--- a/tests/cl/custom/CMakeLists.cl.txt
+++ b/tests/cl/custom/CMakeLists.cl.txt
@@ -6,3 +6,4 @@  piglit_cl_add_custom_test (use-sub-buffer-in-kernel use-sub-buffer-in-kernel.c)
 piglit_cl_add_custom_test (alignment-checker alignment-checker.c)
 piglit_cl_add_custom_test (r600-mapping-bug r600-mapping-bug.c)
 piglit_cl_add_custom_test (behavior-of-read-maps behavior_of_read_maps.c)
+piglit_cl_add_custom_test (behavior-of-unused-maps behavior_of_unused_maps.c)
diff --git a/tests/cl/custom/behavior_of_unused_maps.c b/tests/cl/custom/behavior_of_unused_maps.c
new file mode 100644
index 0000000..931a3b1
--- /dev/null
+++ b/tests/cl/custom/behavior_of_unused_maps.c
@@ -0,0 +1,162 @@ 
+/*
+ * Copyright 2014 Bruno Jiménez
+ *
+ * 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: Bruno Jiménez <brunojimen@gmail.com>
+ *
+ */
+
+#include "piglit-framework-cl-custom.h"
+
+PIGLIT_CL_CUSTOM_TEST_CONFIG_BEGIN
+
+	config.name = "Check for undefined behavior of unused maps";
+	config.run_per_device = true;
+
+PIGLIT_CL_CUSTOM_TEST_CONFIG_END
+
+char *source =
+	"kernel void test(global uint *in, global uint *out) { \n"
+	"	int gid = get_global_id(0); \n"
+	"	out[gid] = in[gid]; \n"
+	"}";
+
+#define BUFFER_SIZE 9 * 1024
+
+enum piglit_result
+piglit_cl_test(const int argc,
+			   const char **argv,
+			   const struct piglit_cl_custom_test_config *config,
+			   const struct piglit_cl_custom_test_env *env)
+{
+	unsigned int i;
+	cl_int err;
+	cl_mem buffer0, buffer1, buffer2, buffer3;
+
+	uint32_t *map0;
+	uint32_t *map1;
+	uint32_t local_data2[BUFFER_SIZE];
+	uint32_t local_data3[BUFFER_SIZE];
+
+	piglit_cl_context context = NULL;
+	cl_command_queue queue;
+
+	cl_program program = NULL;
+	cl_kernel kernel = NULL;
+
+	size_t global_size = BUFFER_SIZE;
+	size_t local_size = 1;
+
+	context = piglit_cl_create_context(env->platform_id, &env->device_id, 1);
+	queue = context->command_queues[0];
+
+	/* Buffers 0 and 1 will be used to check for undefined behaviour in mapped
+	 * buffers when launching kernels.
+	 * Buffers 3 and 4 will be used to launch que kernel and force the relocation
+	 * of the pool */
+	buffer0 = piglit_cl_create_buffer(context, CL_MEM_READ_WRITE, 1024);
+	buffer1 = piglit_cl_create_buffer(context, CL_MEM_READ_WRITE, 1024);
+	buffer2 = piglit_cl_create_buffer(context, CL_MEM_READ_WRITE,
+			sizeof(local_data2));
+	buffer3 = piglit_cl_create_buffer(context, CL_MEM_READ_WRITE,
+			sizeof(local_data3));
+
+	/* First, we copy some known data to buffer0, which will be the
+	 * buffer mapped for read */
+	map0 = clEnqueueMapBuffer(queue, buffer0, CL_TRUE, CL_MAP_WRITE,
+				0, 1024, 0, NULL, NULL, &err);
+	if (err != CL_SUCCESS)
+		return PIGLIT_FAIL;
+
+	memset(map0, 0x55, 1024);
+
+	err = clEnqueueUnmapMemObject(queue, buffer0, map0, 0, NULL, NULL);
+	if (err != CL_SUCCESS)
+		return PIGLIT_FAIL;
+
+	map0 = clEnqueueMapBuffer(queue, buffer0, CL_TRUE, CL_MAP_READ,
+				0, 1024, 0, NULL, NULL, &err);
+
+
+	/* Now, we map buffer1 for writing */
+	map1 = clEnqueueMapBuffer(queue, buffer1, CL_TRUE, CL_MAP_WRITE,
+				0, 1024, 0, NULL, NULL, &err);
+	if (err != CL_SUCCESS)
+		return PIGLIT_FAIL;
+
+
+	/* Now we just launch a kernel */
+	memset(local_data2, 0x22, sizeof(local_data2));
+	piglit_cl_write_whole_buffer(queue, buffer2, local_data2);
+	memset(local_data3, 0x00, sizeof(local_data3));
+	piglit_cl_write_whole_buffer(queue, buffer3, local_data3);
+
+	program = piglit_cl_build_program_with_source(context, 1, &source, "");
+	kernel = piglit_cl_create_kernel(program, "test");
+
+	piglit_cl_set_kernel_buffer_arg(kernel, 0, &buffer2);
+	piglit_cl_set_kernel_buffer_arg(kernel, 1, &buffer3);
+
+	piglit_cl_execute_ND_range_kernel(queue, kernel, 1,
+			&global_size, &local_size);
+
+	/* We check what have happened to the mapped buffers. Supposedly,
+	 * they should still be perfectly valid */
+
+	/* map0 should have all 0x55 */
+	for (i = 0; i < 256; i++) {
+		if(map0[i] != 0x55555555) {
+			return PIGLIT_FAIL;
+		}
+	}
+
+	/* Just to be sure, we unmap the buffer, map it and check it again */
+	err = clEnqueueUnmapMemObject(queue, buffer0, map0, 0, NULL, NULL);
+	if (err != CL_SUCCESS)
+		return PIGLIT_FAIL;
+
+	map0 = clEnqueueMapBuffer(queue, buffer0, CL_TRUE, CL_MAP_READ,
+				0, 1024, 0, NULL, NULL, &err);
+
+	for (i = 0; i < 256; i++) {
+		if(map0[i] != 0x55555555) {
+			return PIGLIT_FAIL;
+		}
+	}
+
+	/* map1 should be a valid place for writing */
+	memset(map1, 0x44, 1024);
+
+	err = clEnqueueUnmapMemObject(queue, buffer1, map1, 0, NULL, NULL);
+	if (err != CL_SUCCESS)
+		return PIGLIT_FAIL;
+
+	map0 = clEnqueueMapBuffer(queue, buffer1, CL_TRUE, CL_MAP_READ,
+				0, 1024, 0, NULL, NULL, &err);
+
+	for (i = 0; i < 256; i++) {
+		if(map1[i] != 0x44444444) {
+			return PIGLIT_FAIL;
+		}
+	}
+
+	return PIGLIT_PASS;
+}