tests: Introduce i915 directory

We can already move all the tests with distinct prefixes: gem_, gen3_
and i915_.

pm_ and drv_ tests will follow in batches, so we can do the
adjustments in the reporting/filtering layer of the CI system.

v2: Fix test-list.txt generation with meson
v3: Fix docs build (Petri)

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Martin Peres <martin.peres@linux.intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Petri Latvala <petri.latvala@intel.com>
Tested-by: Petri Latvala <petri.latvala@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 220 insertions, 0 deletions

diff --git a/tests/i915/gem_ctx_exec.c b/tests/i915/gem_ctx_exec.c
new file mode 100644
index 00000000..908b59af
--- /dev/null
+++ b/tests/i915/gem_ctx_exec.c
@@ -0,0 +1,220 @@
+/*
+ * Copyright © 2012 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>
+ *
+ */
+#include "igt.h"
+#include <limits.h>
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <string.h>
+#include <fcntl.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <sys/time.h>
+
+#include <drm.h>
+
+
+IGT_TEST_DESCRIPTION("Test context batch buffer execution.");
+
+/* Copied from gem_exec_nop.c */
+static int exec(int fd, uint32_t handle, int ring, int ctx_id)
+{
+	struct drm_i915_gem_exec_object2 obj = { .handle = handle };
+	struct drm_i915_gem_execbuffer2 execbuf = {
+		.buffers_ptr = to_user_pointer(&obj),
+		.buffer_count = 1,
+		.flags = ring,
+	};
+
+	i915_execbuffer2_set_context_id(execbuf, ctx_id);
+
+	return __gem_execbuf(fd, &execbuf);
+}
+
+static void big_exec(int fd, uint32_t handle, int ring)
+{
+	int num_buffers = gem_global_aperture_size(fd) / 4096;
+	struct drm_i915_gem_execbuffer2 execbuf = {
+		.buffer_count = num_buffers,
+		.flags = ring,
+	};
+	struct drm_i915_gem_exec_object2 *gem_exec;
+	uint32_t ctx_id1, ctx_id2;
+	int i;
+
+	/* Make sure we only fill half of RAM with gem objects. */
+	igt_require(intel_get_total_ram_mb() * 1024 / 2 > num_buffers * 4);
+
+	gem_exec = calloc(num_buffers + 1, sizeof(*gem_exec));
+	igt_assert(gem_exec);
+	memset(gem_exec, 0, (num_buffers + 1) * sizeof(*gem_exec));
+
+	ctx_id1 = gem_context_create(fd);
+	ctx_id2 = gem_context_create(fd);
+
+	gem_exec[0].handle = handle;
+
+	execbuf.buffers_ptr = to_user_pointer(gem_exec);
+
+	execbuf.buffer_count = 1;
+	i915_execbuffer2_set_context_id(execbuf, ctx_id1);
+	gem_execbuf(fd, &execbuf);
+
+	for (i = 0; i < num_buffers; i++)
+		gem_exec[i].handle = gem_create(fd, 4096);
+	gem_exec[i].handle = handle;
+	execbuf.buffer_count = i + 1;
+
+	/* figure out how many buffers we can exactly fit */
+	while (__gem_execbuf(fd, &execbuf) != 0) {
+		i--;
+		gem_close(fd, gem_exec[i].handle);
+		gem_exec[i].handle = handle;
+		execbuf.buffer_count--;
+		igt_info("trying buffer count %i\n", i - 1);
+	}
+
+	igt_info("reduced buffer count to %i from %i\n", i - 1, num_buffers);
+
+	/* double check that it works */
+	gem_execbuf(fd, &execbuf);
+
+	i915_execbuffer2_set_context_id(execbuf, ctx_id2);
+	gem_execbuf(fd, &execbuf);
+	gem_sync(fd, handle);
+}
+
+static void invalid_context(int fd, unsigned ring, uint32_t handle)
+{
+	struct drm_i915_gem_exec_object2 obj = {
+		.handle = handle,
+	};
+	struct drm_i915_gem_execbuffer2 execbuf = {
+		.buffers_ptr = to_user_pointer(&obj),
+		.buffer_count = 1,
+		.flags = ring,
+	};
+	unsigned int i;
+	uint32_t ctx;
+
+	/* Verify everything works. */
+	i915_execbuffer2_set_context_id(execbuf, 0);
+	gem_execbuf(fd, &execbuf);
+
+	ctx = gem_context_create(fd);
+	i915_execbuffer2_set_context_id(execbuf, ctx);
+	gem_execbuf(fd, &execbuf);
+
+	gem_context_destroy(fd, ctx);
+
+	/* Go through the non-existent context id's. */
+	for (i = 0; i < 32; i++) {
+		i915_execbuffer2_set_context_id(execbuf, 1UL << i);
+		igt_assert_eq(__gem_execbuf(fd, &execbuf), -ENOENT);
+	}
+
+	i915_execbuffer2_set_context_id(execbuf, INT_MAX);
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), -ENOENT);
+
+	i915_execbuffer2_set_context_id(execbuf, UINT_MAX);
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), -ENOENT);
+}
+
+igt_main
+{
+	const uint32_t batch[2] = { 0, MI_BATCH_BUFFER_END };
+	const struct intel_execution_engine *e;
+	uint32_t handle;
+	uint32_t ctx_id;
+	int fd;
+
+	igt_fixture {
+		fd = drm_open_driver_render(DRIVER_INTEL);
+		igt_require_gem(fd);
+
+		gem_require_contexts(fd);
+
+		handle = gem_create(fd, 4096);
+		gem_write(fd, handle, 0, batch, sizeof(batch));
+	}
+
+	igt_subtest("basic") {
+		ctx_id = gem_context_create(fd);
+		igt_assert(exec(fd, handle, 0, ctx_id) == 0);
+		gem_sync(fd, handle);
+		gem_context_destroy(fd, ctx_id);
+
+		ctx_id = gem_context_create(fd);
+		igt_assert(exec(fd, handle, 0, ctx_id) == 0);
+		gem_sync(fd, handle);
+		gem_context_destroy(fd, ctx_id);
+
+		igt_assert(exec(fd, handle, 0, ctx_id) < 0);
+		gem_sync(fd, handle);
+	}
+
+	for (e = intel_execution_engines; e->name; e++) {
+		igt_subtest_f("basic-invalid-context-%s", e->name) {
+			gem_require_ring(fd, e->exec_id | e->flags);
+			invalid_context(fd, e->exec_id | e->flags, handle);
+		}
+	}
+
+	igt_subtest("eviction")
+		big_exec(fd, handle, 0);
+
+	igt_subtest("reset-pin-leak") {
+		int i;
+
+		igt_skip_on_simulation();
+
+		/*
+		 * Use an explicit context to isolate the test from
+		 * any major code changes related to the per-file
+		 * default context (eg. if they would be eliminated).
+		 */
+		ctx_id = gem_context_create(fd);
+
+		/*
+		 * Iterate enough times that the kernel will
+		 * become unhappy if the ggtt pin count for
+		 * the last context is leaked at every reset.
+		 */
+		for (i = 0; i < 20; i++) {
+			igt_hang_t hang = igt_hang_ring(fd, 0);
+
+			igt_assert_eq(exec(fd, handle, 0, 0), 0);
+			igt_assert_eq(exec(fd, handle, 0, ctx_id), 0);
+			igt_post_hang_ring(fd, hang);
+		}
+
+		gem_context_destroy(fd, ctx_id);
+	}
+}