[RFCv2,libdrm 2/2] tests: tegra: Add stream library test

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This patch adds a minimal test set for the stream library and host1x
kernel interface.

The test verifies that the driver (or library) is able to:
- Increment, read and wait for syncpoint values
- Use a host1x channel to do host1x operations
- Handle submit timeout correctly
- Do relocations to buffer
- Allocate and release memory
- Use stream pools correctly

Signed-off-by: Arto Merilainen <amerilainen@xxxxxxxxxx>
---
 configure.ac                           |    1 +
 tests/tegra/host1x/Makefile.am         |   12 +
 tests/tegra/host1x/tegra_host1x_test.c |  893 ++++++++++++++++++++++++++++++++
 3 files changed, 906 insertions(+)
 create mode 100644 tests/tegra/host1x/Makefile.am
 create mode 100644 tests/tegra/host1x/tegra_host1x_test.c

diff --git a/configure.ac b/configure.ac
index e55e9c1..a678bcd 100644
--- a/configure.ac
+++ b/configure.ac
@@ -399,6 +399,7 @@ AC_CONFIG_FILES([
 	tests/radeon/Makefile
 	tests/vbltest/Makefile
 	tests/exynos/Makefile
+	tests/tegra/host1x/Makefile
 	include/Makefile
 	include/drm/Makefile
 	man/Makefile
diff --git a/tests/tegra/host1x/Makefile.am b/tests/tegra/host1x/Makefile.am
new file mode 100644
index 0000000..700f764
--- /dev/null
+++ b/tests/tegra/host1x/Makefile.am
@@ -0,0 +1,12 @@
+AM_CFLAGS = \
+	-I $(top_srcdir)/include/drm \
+	-I $(top_srcdir)
+
+LDADD = \
+	$(top_builddir)/libdrm.la
+
+noinst_PROGRAMS = \
+	tegra_host1x_test
+
+tegra_host1x_test_SOURCES = \
+	tegra_host1x_test.c
diff --git a/tests/tegra/host1x/tegra_host1x_test.c b/tests/tegra/host1x/tegra_host1x_test.c
new file mode 100644
index 0000000..548f422
--- /dev/null
+++ b/tests/tegra/host1x/tegra_host1x_test.c
@@ -0,0 +1,893 @@
+/*
+ * Copyright (C) 2012-2013 NVIDIA 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:
+ *	Arto Merilainen <amerilainen@xxxxxxxxxx>
+ */
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <string.h>
+#include <time.h>
+
+/* Include the code file to access the internals of the library */
+#include "tegra/tegra_drm.c"
+
+#define HOST1X_OPCODE_NOP	host1x_opcode_nonincr(0, 0)
+
+/*
+ * test_oversized_submit(channel) - Do a submit that does not fit into
+ *				    preallocated stream buffer
+ */
+
+int test_oversized_submit(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	unsigned int diff_ms;
+	int i;
+
+	/* Create a really small buffer */
+	if (!(stream = tegra_stream_create(channel, 4, 0, 0)))
+		return -1;
+
+	if (tegra_stream_begin(stream, 100, NULL, 0, 0,
+	    HOST1X_CLASS_HOST1X))
+		goto destroy;
+	for (i = 0; i < 100; ++i) {
+		if (tegra_stream_push(stream, HOST1X_OPCODE_NOP))
+			goto destroy;
+	}
+	if (tegra_stream_end(stream))
+		goto destroy;
+	if (tegra_stream_flush(stream, &fence))
+		goto destroy;
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+	if (tegra_fence_waitex(channel, &fence, 15000, NULL))
+		goto destroy;
+
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_stream_destroy(stream);
+	return -1;
+
+}
+
+/*
+ * test_huge_submit(channel) - Do single huge submit and wait for completion
+ */
+
+int test_huge_submit(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	const unsigned int submit_count = 1000;
+	struct timespec tp_begin, tp_end;
+	unsigned int diff_ms;
+	int i;
+
+	clock_gettime(CLOCK_MONOTONIC, &tp_begin);
+
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		return -1;
+
+	/* Create many small submits */
+	for (i = 0; i < submit_count; ++i) {
+		if (tegra_stream_begin(stream, 1, NULL, 0, 0,
+		    HOST1X_CLASS_HOST1X))
+			goto destroy;
+		if (tegra_stream_push(stream, HOST1X_OPCODE_NOP))
+			goto destroy;
+		if (tegra_stream_end(stream))
+			goto destroy;
+	}
+
+	/* Flush all at the same time */
+	if (tegra_stream_flush(stream, &fence))
+		goto destroy;
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+	if (tegra_fence_waitex(channel, &fence, 15000, NULL))
+		goto destroy;
+
+	clock_gettime(CLOCK_MONOTONIC, &tp_end);
+	diff_ms = (tp_end.tv_sec - tp_begin.tv_sec) * 1000 +
+		(tp_end.tv_nsec - tp_begin.tv_nsec) / 1000000;
+
+	printf("Doing %u iterations in a single submit took %ums\n",
+	       submit_count, diff_ms);
+
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_stream_destroy(stream);
+	return -1;
+
+}
+
+/*
+ * test_many_small_submits(channel) - Do several small submits and wait for
+ *				      completion
+ */
+
+int test_many_small_submits(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	const unsigned int submit_count = 1000;
+	struct timespec tp_begin, tp_end;
+	unsigned int diff_ms;
+	int i;
+
+	clock_gettime(CLOCK_MONOTONIC, &tp_begin);
+
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		return -1;
+
+	/* Create many small submits */
+	for (i = 0; i < submit_count; ++i) {
+		if (tegra_stream_begin(stream, 1, NULL, 0, 0,
+		    HOST1X_CLASS_HOST1X))
+			goto destroy;
+
+		if (tegra_stream_push(stream, HOST1X_OPCODE_NOP))
+			goto destroy;
+
+		if (tegra_stream_end(stream))
+			goto destroy;
+
+		/* Flush each submit separately */
+		if (tegra_stream_flush(stream, &fence))
+			goto destroy;
+	}
+
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+
+	/* Wait until complete */
+	if (tegra_fence_waitex(channel, &fence, 15000, NULL))
+		goto destroy;
+
+	clock_gettime(CLOCK_MONOTONIC, &tp_end);
+	diff_ms = (tp_end.tv_sec - tp_begin.tv_sec) * 1000 +
+		(tp_end.tv_nsec - tp_begin.tv_nsec) / 1000000;
+
+	printf("Doing %u individual submits took %ums\n", submit_count,
+	       diff_ms);
+
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_stream_destroy(stream);
+	return -1;
+
+}
+
+/*
+ * test_wait_current_value(channel) - Test waiting the current value with 0
+ *				      timeout
+ */
+
+int test_wait_current_value(struct tegra_channel *channel)
+{
+	struct tegra_drm_syncpt_read read_args = {channel->syncpt_id, 0};
+	struct tegra_fence fence = {channel->syncpt_id, 0};
+	int fd = channel->dev->fd;
+	int err = 0;
+
+	if (err = drmIoctl(fd, DRM_IOCTL_TEGRA_SYNCPT_READ, &read_args))
+		goto exit;
+	fence.value = read_args.value + 1;
+	err = tegra_fence_waitex(channel, &fence, 0, NULL);
+exit:
+	return err;
+}
+
+/*
+ * test_wait_future_value(channel) - Test waiting future value with 0
+ *				     timeout
+ */
+
+int test_wait_future_value(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	const unsigned int id = channel->syncpt_id;
+	const unsigned int delay_len = 15;
+	struct tegra_drm_syncpt_incr incr_args = {channel->syncpt_id, 0};
+	int fd = channel->dev->fd;
+	int i;
+
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		return -1;
+
+	/* Wait for a syncpoint increment */
+	if (tegra_stream_begin(stream, 2, NULL, 0, 0, HOST1X_CLASS_HOST1X))
+		goto destroy;
+	if (tegra_stream_push(stream, host1x_opcode_nonincr(
+	    host1x_uclass_wait_syncpt_incr_r(), 1)))
+		goto destroy;
+	if (tegra_stream_push(stream,
+	    host1x_uclass_wait_syncpt_incr_indx_f(id)))
+		goto destroy;
+
+	/* Tell the library that we're doing a lot of increments */
+	stream->num_syncpt_incrs++;
+
+	if (tegra_stream_end(stream))
+		goto destroy;
+
+	/* flush and validate fence */
+	if (tegra_stream_flush(stream, &fence))
+		goto destroy;
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+
+	/* reading a future value should return an error */
+	if (!tegra_fence_waitex(channel, &fence, 0, NULL))
+		goto destroy;
+
+	/* let the host continue */
+	if (drmIoctl(fd, DRM_IOCTL_TEGRA_SYNCPT_INCR, &incr_args))
+			goto destroy_wait_timeout;
+
+	/* wait for the end of submit */
+	if (tegra_fence_waitex(channel, &fence, 1000, NULL))
+		goto destroy;
+
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy_wait_timeout:
+	tegra_fence_waitex(channel, &fence, 15000, NULL);
+destroy:
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_bad_increment(channel) - Try doing a bad increment
+ */
+
+int test_bad_increment(struct tegra_channel *channel)
+{
+	int fd = channel->dev->fd;
+	const unsigned int id = channel->syncpt_id;
+	struct tegra_drm_syncpt_incr incr_args = {channel->syncpt_id, 0};
+	struct tegra_drm_syncpt_read read_args = {channel->syncpt_id, 0};
+	unsigned int value_0, value_1;
+	int err = 0;
+
+	/* Read syncpoint value in the beginning */
+	if ((err = drmIoctl(fd, DRM_IOCTL_TEGRA_SYNCPT_READ, &read_args)))
+		goto exit;
+	value_0 = read_args.value;
+
+	/* Try doing an increment (it should not pass) */
+	if (!drmIoctl(fd, DRM_IOCTL_TEGRA_SYNCPT_INCR, &incr_args)) {
+		err = -1;
+		goto exit;
+	}
+
+	/* Read the new syncpoint value */
+	if ((err = drmIoctl(fd, DRM_IOCTL_TEGRA_SYNCPT_READ, &read_args)))
+		goto exit;
+	value_1 = read_args.value;
+
+	/* Validate that the kernel did not do any increments */
+	if (value_1 != value_0)
+		err = -1;
+exit:
+	return err;
+}
+
+int test_host_incr(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	int i;
+
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		return -1;
+
+	if (tegra_stream_begin(stream, 2, NULL, 0, 0, HOST1X_CLASS_HOST1X))
+		goto destroy;
+	if (tegra_stream_push_incr(stream, 0))
+		goto destroy;
+	if (tegra_stream_end(stream))
+		goto destroy;
+
+	if (tegra_stream_flush(stream, &fence))
+		goto destroy;
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+	if (tegra_fence_waitex(channel, &fence, 15000, NULL))
+		goto destroy;
+
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_host_wait(channel) - Make host wait for cpu increments
+ */
+
+int test_host_wait(struct tegra_channel *channel)
+{
+	int fd = channel->dev->fd;
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	const unsigned int syncpt_incrs = 15;
+	const unsigned int id = channel->syncpt_id;
+	struct tegra_drm_syncpt_incr incr_args = {channel->syncpt_id, 0};
+	struct tegra_drm_syncpt_read read_args = {channel->syncpt_id, 0};
+	unsigned int value_0, value_1;
+	int i;
+
+	/*
+	 * Stream construction
+	 */
+
+	/* Create stream */
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		return -1;
+
+	/* Start constructing a cmd buffer */
+	if (tegra_stream_begin(stream, 1 + syncpt_incrs, NULL, 0, 0,
+		HOST1X_CLASS_HOST1X))
+		goto destroy;
+
+	/* Wait for syncpoint increments */
+	if (tegra_stream_push(stream, host1x_opcode_nonincr(
+		host1x_uclass_wait_syncpt_incr_r(), syncpt_incrs)))
+		goto destroy;
+	for (i = 0; i < syncpt_incrs; ++i)
+		if (tegra_stream_push(stream,
+		    host1x_uclass_wait_syncpt_incr_indx_f(id)))
+			goto destroy;
+
+	/* Tell the library that we're doing a lot of increments */
+	stream->num_syncpt_incrs += syncpt_incrs;
+
+	/* End and flush */
+	if (tegra_stream_end(stream))
+		goto destroy;
+	if (tegra_stream_flush(stream, &fence))
+		goto destroy;
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+
+	/*
+	 * Act as a client for host1x (i.e. do syncpoint increments)
+	 */
+
+	/* Read syncpoint value in the beginning */
+	if (drmIoctl(fd, DRM_IOCTL_TEGRA_SYNCPT_READ, &read_args))
+		goto destroy_wait_timeout;
+	value_0 = read_args.value;
+
+	/* Do increments */
+	for (i = 0; i < syncpt_incrs; ++i)
+		if (drmIoctl(fd, DRM_IOCTL_TEGRA_SYNCPT_INCR, &incr_args))
+			goto destroy_wait_timeout;
+
+	/* The kernel should return immdiately */
+	if (tegra_fence_waitex(channel, &fence, 100, NULL))
+		goto destroy;
+
+	/* Read the new syncpoint value */
+	if (drmIoctl(fd, DRM_IOCTL_TEGRA_SYNCPT_READ, &read_args))
+		goto destroy;
+	value_1 = read_args.value;
+
+	/* Validate that increments were made correctly */
+	if (value_1 != value_0 + syncpt_incrs + 1)
+		goto destroy;
+
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy_wait_timeout:
+	tegra_fence_waitex(channel, &fence, 15000, NULL);
+destroy:
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_pool(channel) - Test stream pool
+ *
+ * The stream library supports pooling of streams. This means that there is
+ * a small pool of preallocated stream buffers. If these buffers run out,
+ * the library waits until one is released. This routine tests that we
+ * actually can access the preallocated buffers immediately and if no
+ * buffers are available, we actually wait until one is free.
+ */
+
+int test_pool(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	struct timespec tp_curr, tp_prev;
+	const unsigned int pool_size = 3;
+	int i;
+
+	if (!(stream = tegra_stream_create(channel, 0, pool_size, 0)))
+		return -1;
+
+	for (i = 0; i < pool_size * 2; ++i) {
+		unsigned int diff_ms;
+
+		/* measure how long it takes to begin a stream */
+		clock_gettime(CLOCK_MONOTONIC, &tp_prev);
+		if (tegra_stream_begin(stream, 3, NULL, 0, 0,
+		    HOST1X_CLASS_HOST1X))
+			goto destroy;
+		clock_gettime(CLOCK_MONOTONIC, &tp_curr);
+		diff_ms = (tp_curr.tv_sec - tp_prev.tv_sec) * 1000 +
+			(tp_curr.tv_nsec - tp_prev.tv_nsec) / 1000000;
+
+		/* it should not be too much as long as we have buffers
+		 * available */
+		if (diff_ms > 500 && i < pool_size)
+			goto destroy;
+
+		/* ..and it should be quite large if no buffers are available
+		 * because the library needs to wait for a free buffer */
+		if (diff_ms < 500 && i >= pool_size)
+			goto destroy;
+
+		/* Make host1x wait 1 sec */
+		if (tegra_stream_push(stream, host1x_opcode_nonincr(
+		    host1x_uclass_delay_usec_r(), 1)))
+			goto destroy;
+		if (tegra_stream_push(stream, 0xFFFFF))
+			goto destroy;
+
+		/* End and flush */
+		if (tegra_stream_end(stream))
+			goto destroy;
+		if (tegra_stream_flush(stream, &fence))
+			goto destroy;
+	}
+
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+	if (tegra_fence_waitex(channel, &fence, 15000, NULL))
+		goto destroy;
+
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_push_words(channel) - Test push_words -API
+ */
+
+int test_push_words(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	struct tegra_bo *bo = NULL;
+	uint32_t *reloc_ptr, reloc_entry_val;
+	struct {
+		uint32_t nonincr;
+		uint32_t reloc;
+	} words;
+
+	/* Allocate memory for a relocation */
+	if (!(bo = tegra_bo_allocate(channel->dev, 1, 4)))
+		goto destroy;
+
+	/* Create and begin a stream */
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		goto destroy;
+	if (tegra_stream_begin(stream, 2, NULL, 0, 1, HOST1X_CLASS_GR2D))
+		goto destroy;
+
+	/* Push data to dstba register */
+	words.nonincr = host1x_opcode_nonincr(0x2b, 1);
+
+	/* Push reloc. Store the temporary value from the library */
+	if (tegra_stream_push_words(stream, &words, 2, 1, 0,
+				    tegra_reloc(&words.reloc, bo, 0)))
+		goto destroy;
+	reloc_ptr =
+		&stream->active_buffer->data[stream->active_buffer->cmd_ptr - 1];
+	reloc_entry_val = *reloc_ptr;
+
+	/* end stream */
+	if (tegra_stream_end(stream))
+		goto destroy;
+
+	/* push the command buffer to the kernel  */
+	if (tegra_stream_flush(stream, &fence))
+		goto destroy;
+
+	/* the kernel should have patched the memory address */
+	if (reloc_entry_val == *reloc_ptr)
+		goto destroy;
+
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+	if (tegra_fence_waitex(channel, &fence, 15000, NULL))
+		goto destroy;
+
+	tegra_bo_free(bo);
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_bo_free(bo);
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_reloc_bad_register(channel) - Test relocation to a non-address
+ *				      register
+ */
+
+int test_reloc_bad_register(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	struct tegra_bo *bo = NULL;
+
+	/* Allocate memory for a relocation */
+	if (!(bo = tegra_bo_allocate(channel->dev, 4096, 4)))
+		goto destroy;
+
+	/* Create and begin a stream */
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		goto destroy;
+	if (tegra_stream_begin(stream, 2, NULL, 0, 1, HOST1X_CLASS_HOST1X))
+		goto destroy;
+
+	/* push data to syncpoint increment register */
+	if (tegra_stream_push(stream, host1x_opcode_nonincr(
+	    host1x_uclass_incr_syncpt_r(), 1)))
+		goto destroy;
+
+	/* Push reloc. */
+	if (tegra_stream_push_reloc(stream, bo, 0))
+		goto destroy;
+
+	/* end stream */
+	if (tegra_stream_end(stream))
+		goto destroy;
+
+	/* push the command buffer to the kernel. this should fail */
+	if (!tegra_stream_flush(stream, &fence))
+		goto destroy;
+
+	tegra_bo_free(bo);
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_bo_free(bo);
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_reloc_bad_offset(channel) - Test relocation with a bad offset
+ */
+
+int test_reloc_bad_offset(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	struct tegra_bo *bo = NULL;
+
+	/* Allocate memory for a relocation */
+	if (!(bo = tegra_bo_allocate(channel->dev, 4096, 4)))
+		goto destroy;
+
+	/* Create and begin a stream */
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		goto destroy;
+	if (tegra_stream_begin(stream, 2, NULL, 0, 1, HOST1X_CLASS_GR2D))
+		goto destroy;
+
+	/* push data to dstba register */
+	if (tegra_stream_push(stream, host1x_opcode_nonincr(0x2b, 1)))
+		goto destroy;
+
+	/* Push reloc with bad offset */
+	if (tegra_stream_push_reloc(stream, bo, 0x100000))
+		goto destroy;
+
+	/* end stream */
+	if (tegra_stream_end(stream))
+		goto destroy;
+
+	/* push the command buffer to the kernel. this should fail */
+	if (!tegra_stream_flush(stream, &fence))
+		goto destroy;
+
+	tegra_bo_free(bo);
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_bo_free(bo);
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_reloc(channel) - Test relocations
+ */
+
+int test_reloc(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	struct tegra_bo *bo = NULL;
+	uint32_t *reloc_ptr, reloc_entry_val;
+
+	/* Allocate memory for a relocation */
+	if (!(bo = tegra_bo_allocate(channel->dev, 1, 4)))
+		goto destroy;
+
+	/* Create and begin a stream */
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		goto destroy;
+	if (tegra_stream_begin(stream, 2, NULL, 0, 1, HOST1X_CLASS_GR2D))
+		goto destroy;
+
+	/* push data to dstba register */
+	if (tegra_stream_push(stream, host1x_opcode_nonincr(0x2b, 1)))
+		goto destroy;
+
+	/* Push reloc. Store the temporary value from the library */
+	reloc_ptr =
+		&stream->active_buffer->data[stream->active_buffer->cmd_ptr];
+	if (tegra_stream_push_reloc(stream, bo, 0))
+		goto destroy;
+	reloc_entry_val = *reloc_ptr;
+
+	/* end stream */
+	if (tegra_stream_end(stream))
+		goto destroy;
+
+	/* push the command buffer to the kernel  */
+	if (tegra_stream_flush(stream, &fence))
+		goto destroy;
+
+	/* the kernel should have patched the memory address */
+	if (reloc_entry_val == *reloc_ptr)
+		goto destroy;
+
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+	if (tegra_fence_waitex(channel, &fence, 15000, NULL))
+		goto destroy;
+
+	tegra_bo_free(bo);
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_bo_free(bo);
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_timeout(channel) - Test that the kernel survives from timeouts
+ */
+
+int test_timeout(struct tegra_channel *channel)
+{
+	struct tegra_stream *stream = NULL;
+	struct tegra_fence fence;
+	const unsigned int delay_len = 15;
+	int i;
+
+	if (!(stream = tegra_stream_create(channel, 0, 0, 0)))
+		return -1;
+
+	if (tegra_stream_begin(stream, 1 + delay_len, NULL, 0, 0,
+	    HOST1X_CLASS_HOST1X))
+		goto destroy;
+
+	/* make the host wait ~15 seconds. This should trigger the timeout */
+	if (tegra_stream_push(stream, host1x_opcode_nonincr(
+	    host1x_uclass_delay_usec_r(), delay_len)))
+		goto destroy;
+	for (i = 0; i < delay_len; ++i)
+		if (tegra_stream_push(stream, 0xFFFFF))
+			goto destroy;
+
+	if (tegra_stream_end(stream))
+		goto destroy;
+	if (tegra_stream_flush(stream, &fence))
+		goto destroy;
+	if (!tegra_fence_is_valid(&fence))
+		goto destroy;
+	if (tegra_fence_waitex(channel, &fence, 15000, NULL))
+		goto destroy;
+
+	tegra_stream_destroy(stream);
+	return 0;
+
+destroy:
+	tegra_stream_destroy(stream);
+	return -1;
+}
+
+/*
+ * test_drain(channel) - Allocate, use and release memory. Check that we can do
+ *			 that again.
+ */
+
+int test_bo_drain(struct tegra_channel *channel)
+{
+	const unsigned int alloc_size = (1024 * 1024);
+	const unsigned int num_allocs = 1024;
+	const unsigned int num_trials = 5;
+
+	unsigned int first_time_blocks_allocated = 0;
+	int i, j, err = 0;
+
+	for (i = 0; i < num_trials; ++i) {
+		struct tegra_bo *bos[num_allocs];
+		unsigned int blocks_allocated;
+
+		for (j = 0; j < num_allocs; ++j) {
+			bos[j] = tegra_bo_allocate(channel->dev, alloc_size,
+						   4);
+			if (!bos[j])
+				break;
+			if (!tegra_bo_map(bos[j]))
+				break;
+			memset(bos[j]->vaddr, j % 256, alloc_size);
+		}
+
+		blocks_allocated = j;
+
+		while (j-- > 0) {
+			int k = 0;
+			for (k = 0; k < alloc_size; ++k)
+				if (((char *)bos[j]->vaddr)[k] != (j % 256))
+					err = -1;
+
+			/* Test put/get for every 3th allocation */
+			if (!(j % 3)) {
+				tegra_bo_get(bos[j]);
+				tegra_bo_put(bos[j]);
+			}
+
+			/* Test that both free and put release the memory */
+			if (!(j % 2))
+				tegra_bo_free(bos[j]);
+			else
+				tegra_bo_put(bos[j]);
+		}
+
+		if (!first_time_blocks_allocated)
+			first_time_blocks_allocated = blocks_allocated;
+		else if (first_time_blocks_allocated != blocks_allocated) {
+			err = -1;
+			break;
+		}
+	}
+	return err;
+}
+
+struct test_data {
+	const char *name;
+	int (*func)(struct tegra_channel *channel);
+	int known_failure;
+};
+
+#define TEST(test_name)		{#test_name, test_name, 0}
+#define FAILING_TEST(test_name)	{#test_name, test_name, 1}
+
+struct test_data tests[] = {
+	FAILING_TEST(test_bad_increment),
+	TEST(test_wait_current_value),
+	FAILING_TEST(test_wait_future_value),
+	TEST(test_host_wait),
+	TEST(test_many_small_submits),
+	TEST(test_huge_submit),
+	TEST(test_oversized_submit),
+	TEST(test_bo_drain),
+	TEST(test_timeout),
+	TEST(test_reloc),
+	TEST(test_reloc_bad_register),
+	FAILING_TEST(test_reloc_bad_offset),
+	TEST(test_push_words),
+	TEST(test_pool),
+	TEST(test_host_incr)
+};
+const unsigned int num_tests = sizeof(tests) / sizeof(*tests);
+
+int main(int argc, char *argv[])
+{
+	struct tegra_device *dev;
+	struct tegra_channel *channel;
+	int fd, i, num_unknown_failures = 0, num_failures = 0;
+
+	fd = drmOpen("tegra", NULL);
+	if (fd < 0) {
+		printf("Failed to open tegra device!\n");
+		goto err_drm_open;
+	}
+
+	if (!(dev = tegra_device_create(fd))) {
+		printf("Failed to create tegra device!\n");
+		goto err_tegra_device_create;
+	}
+
+	if (!(channel = tegra_channel_open(dev, TEGRADRM_MODULEID_2D))) {
+		printf("Failed to open 2d channel!\n");
+		goto err_tegra_channel_open;
+	}
+
+	for (i = 0; i < num_tests; ++i) {
+		int err = tests[i].func(channel);
+
+		printf("%s: %s\n", tests[i].name, err ? "fail" : "pass");
+
+		num_failures += err ? 1 : 0;
+		num_unknown_failures +=
+			(err && !tests[i].known_failure) ? 1 : 0;
+	}
+
+	printf("\nFailed %d/%d tests\n", num_failures, num_tests);
+	if (num_unknown_failures)
+		printf("FAILED\n");
+	else if (num_failures)
+		printf("PASSED with known failures\n");
+	else
+		printf("PASSED\n");
+
+	tegra_channel_close(channel);
+	tegra_device_destroy(dev);
+	close(fd);
+
+	return num_unknown_failures ? -1 : 0;
+
+err_tegra_channel_open:
+	tegra_device_destroy(dev);
+err_tegra_device_create:
+	close(fd);
+err_drm_open:
+	return -1;
+}
-- 
1.7.9.5

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