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, 517 insertions, 0 deletions

diff --git a/tests/i915/gem_softpin.c b/tests/i915/gem_softpin.c
new file mode 100644
index 00000000..336008b8
--- /dev/null
+++ b/tests/i915/gem_softpin.c
@@ -0,0 +1,517 @@
+/*
+ * Copyright © 2015 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:
+ *    Vinay Belgaumkar <vinay.belgaumkar@intel.com>
+ *    Thomas Daniel <thomas.daniel@intel.com>
+ *
+ */
+
+#include "igt.h"
+
+#define EXEC_OBJECT_PINNED	(1<<4)
+#define EXEC_OBJECT_SUPPORTS_48B_ADDRESS (1<<3)
+
+/* gen8_canonical_addr
+ * Used to convert any address into canonical form, i.e. [63:48] == [47].
+ * Based on kernel's sign_extend64 implementation.
+ * @address - a virtual address
+*/
+#define GEN8_HIGH_ADDRESS_BIT 47
+static uint64_t gen8_canonical_addr(uint64_t address)
+{
+	__u8 shift = 63 - GEN8_HIGH_ADDRESS_BIT;
+	return (__s64)(address << shift) >> shift;
+}
+
+static void test_invalid(int fd)
+{
+	const uint32_t bbe = MI_BATCH_BUFFER_END;
+	struct drm_i915_gem_execbuffer2 execbuf;
+	struct drm_i915_gem_exec_object2 object;
+
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(&object);
+	execbuf.buffer_count = 1;
+
+	memset(&object, 0, sizeof(object));
+	object.handle = gem_create(fd, 2*4096);
+	object.flags = EXEC_OBJECT_SUPPORTS_48B_ADDRESS | EXEC_OBJECT_PINNED;
+	gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
+
+	/* Check invalid alignment */
+	object.offset = 4096;
+	object.alignment = 64*1024;
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+	object.alignment = 0;
+
+	/* Check wraparound */
+	object.offset = -4096ULL;
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+	/* Check beyond bounds of aperture */
+	object.offset = gem_aperture_size(fd) - 4096;
+	object.offset = gen8_canonical_addr(object.offset);
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+	/* Check gen8 canonical addressing */
+	if (gem_aperture_size(fd) > 1ull<<GEN8_HIGH_ADDRESS_BIT) {
+		object.offset = 1ull << GEN8_HIGH_ADDRESS_BIT;
+		igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+		object.offset = gen8_canonical_addr(object.offset);
+		igt_assert_eq(__gem_execbuf(fd, &execbuf), 0);
+	}
+
+	/* Check extended range */
+	if (gem_aperture_size(fd) > 1ull<<32) {
+		object.flags = EXEC_OBJECT_PINNED;
+		object.offset = 1ull<<32;
+		igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+		object.offset = gen8_canonical_addr(object.offset);
+		object.flags |= EXEC_OBJECT_SUPPORTS_48B_ADDRESS;
+		igt_assert_eq(__gem_execbuf(fd, &execbuf), 0);
+	}
+}
+
+static void test_softpin(int fd)
+{
+	const uint32_t size = 1024 * 1024;
+	const uint32_t bbe = MI_BATCH_BUFFER_END;
+	struct drm_i915_gem_execbuffer2 execbuf;
+	struct drm_i915_gem_exec_object2 object;
+	uint64_t offset, end;
+	uint32_t last_handle;
+	int loop;
+
+	last_handle = gem_create(fd, size);
+
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(&object);
+	execbuf.buffer_count = 1;
+	for (loop = 0; loop < 1024; loop++) {
+		memset(&object, 0, sizeof(object));
+		object.handle = gem_create(fd, 2*size);
+		gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
+
+		/* Find a hole */
+		gem_execbuf(fd, &execbuf);
+		gem_close(fd, object.handle);
+		gem_close(fd, last_handle);
+
+		igt_debug("Made a 2 MiB hole: %08llx\n",
+			  object.offset);
+
+		object.handle = gem_create(fd, size);
+		gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
+		object.flags |= EXEC_OBJECT_PINNED;
+
+		end = object.offset + size;
+		for (offset = object.offset; offset <= end; offset += 4096) {
+			object.offset = offset;
+			gem_execbuf(fd, &execbuf);
+			igt_assert_eq_u64(object.offset, offset);
+		}
+
+		last_handle = object.handle;
+	}
+}
+
+static void test_overlap(int fd)
+{
+	const uint32_t size = 1024 * 1024;
+	const uint32_t bbe = MI_BATCH_BUFFER_END;
+	struct drm_i915_gem_execbuffer2 execbuf;
+	struct drm_i915_gem_exec_object2 object[2];
+	uint64_t offset;
+	uint32_t handle;
+
+	handle = gem_create(fd, 3*size);
+	gem_write(fd, handle, 0, &bbe, sizeof(bbe));
+
+	memset(object, 0, sizeof(object));
+	object[0].handle = handle;
+
+	/* Find a hole */
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(object);
+	execbuf.buffer_count = 1;
+	gem_execbuf(fd, &execbuf);
+
+	igt_debug("Made a 3x1 MiB hole: %08llx\n",
+		  object[0].offset);
+
+	object[0].handle = gem_create(fd, size);
+	object[0].offset += size;
+	object[0].flags |= EXEC_OBJECT_PINNED;
+	object[1].handle = gem_create(fd, size);
+	object[1].flags |= EXEC_OBJECT_PINNED;
+	gem_write(fd, object[1].handle, 0, &bbe, sizeof(bbe));
+	execbuf.buffer_count = 2;
+
+	/* Check that we fit into our hole */
+	object[1].offset = object[0].offset - size;
+	gem_execbuf(fd, &execbuf);
+	igt_assert_eq_u64(object[1].offset + size, object[0].offset);
+
+	object[1].offset = object[0].offset + size;
+	gem_execbuf(fd, &execbuf);
+	igt_assert_eq_u64(object[1].offset - size, object[0].offset);
+
+	/* Try all possible page-aligned overlaps */
+	for (offset = object[0].offset - size + 4096;
+	     offset < object[0].offset + size;
+	     offset += 4096) {
+		object[1].offset = offset;
+		igt_debug("[0]=[%08llx - %08llx] [1]=[%08llx - %08llx]\n",
+			  (long long)object[0].offset,
+			  (long long)object[0].offset + size,
+			  (long long)object[1].offset,
+			  (long long)object[1].offset + size);
+		igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+		igt_assert_eq_u64(object[1].offset, offset);
+	}
+
+	gem_close(fd, object[1].handle);
+	gem_close(fd, object[0].handle);
+	gem_close(fd, handle);
+}
+
+static uint64_t busy_batch(int fd)
+{
+	const int gen = intel_gen(intel_get_drm_devid(fd));
+	const int has_64bit_reloc = gen >= 8;
+	struct drm_i915_gem_execbuffer2 execbuf;
+	struct drm_i915_gem_exec_object2 object[2];
+	uint32_t *map;
+	int factor = 10;
+	int i = 0;
+
+	memset(object, 0, sizeof(object));
+	object[0].handle = gem_create(fd, 1024*1024);
+	object[1].handle = gem_create(fd, 4096);
+	map = gem_mmap__cpu(fd, object[1].handle, 0, 4096, PROT_WRITE);
+	gem_set_domain(fd, object[1].handle,
+		       I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
+
+	*map = MI_BATCH_BUFFER_END;
+
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(object);
+	execbuf.buffer_count = 2;
+	if (gen >= 6)
+		execbuf.flags = I915_EXEC_BLT;
+	gem_execbuf(fd, &execbuf);
+
+	igt_debug("Active offsets = [%08llx, %08llx]\n",
+		  object[0].offset, object[1].offset);
+
+#define COPY_BLT_CMD		(2<<29|0x53<<22|0x6)
+#define BLT_WRITE_ALPHA		(1<<21)
+#define BLT_WRITE_RGB		(1<<20)
+	gem_set_domain(fd, object[1].handle,
+		       I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
+	while (factor--) {
+		/* XY_SRC_COPY */
+		map[i++] = COPY_BLT_CMD | BLT_WRITE_ALPHA | BLT_WRITE_RGB;
+		if (has_64bit_reloc)
+			map[i-1] += 2;
+		map[i++] = 0xcc << 16 | 1 << 25 | 1 << 24 | (4*1024);
+		map[i++] = 0;
+		map[i++] = 256 << 16 | 1024;
+		map[i++] = object[0].offset;
+		if (has_64bit_reloc)
+			map[i++] = object[0].offset >> 32;
+		map[i++] = 0;
+		map[i++] = 4096;
+		map[i++] = object[0].offset;
+		if (has_64bit_reloc)
+			map[i++] = object[0].offset >> 32;
+	}
+	map[i++] = MI_BATCH_BUFFER_END;
+	munmap(map, 4096);
+
+	object[0].flags = EXEC_OBJECT_PINNED | EXEC_OBJECT_WRITE;
+	object[1].flags = EXEC_OBJECT_PINNED;
+	gem_execbuf(fd, &execbuf);
+	gem_close(fd, object[0].handle);
+	gem_close(fd, object[1].handle);
+
+	return object[1].offset;
+}
+
+static void test_evict_active(int fd)
+{
+	const uint32_t bbe = MI_BATCH_BUFFER_END;
+	struct drm_i915_gem_execbuffer2 execbuf;
+	struct drm_i915_gem_exec_object2 object;
+	uint64_t expected;
+
+	memset(&object, 0, sizeof(object));
+	object.handle = gem_create(fd, 4096);
+	gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
+
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(&object);
+	execbuf.buffer_count = 1;
+
+	expected = busy_batch(fd);
+	object.offset = expected;
+	object.flags = EXEC_OBJECT_PINNED;
+
+	/* Replace the active batch with ourselves, forcing an eviction */
+	gem_execbuf(fd, &execbuf);
+	igt_assert_eq_u64(object.offset, expected);
+
+	gem_close(fd, object.handle);
+}
+
+static void test_evict_snoop(int fd)
+{
+	const uint32_t bbe = MI_BATCH_BUFFER_END;
+	struct drm_i915_gem_execbuffer2 execbuf;
+	struct drm_i915_gem_exec_object2 object[2];
+	uint64_t hole;
+
+	igt_require(!gem_has_llc(fd));
+	igt_require(!gem_uses_ppgtt(fd));
+
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(object);
+	execbuf.buffer_count = 1;
+
+	/* Find a hole */
+	memset(object, 0, sizeof(object));
+	object[0].handle = gem_create(fd, 5*4096);
+	gem_write(fd, object[0].handle, 0, &bbe, sizeof(bbe));
+	gem_execbuf(fd, &execbuf);
+	gem_close(fd, object[0].handle);
+	hole = object[0].offset + 4096;
+
+	/* Create a snoop + uncached pair */
+	object[0].handle = gem_create(fd, 4096);
+	object[0].flags = EXEC_OBJECT_PINNED;
+	gem_set_caching(fd, object[0].handle, 1);
+	object[1].handle = gem_create(fd, 4096);
+	object[1].flags = EXEC_OBJECT_PINNED;
+	gem_write(fd, object[1].handle, 4096-sizeof(bbe), &bbe, sizeof(bbe));
+	execbuf.buffer_count = 2;
+
+	/* snoop abutting before uncached -> error */
+	object[0].offset = hole;
+	object[1].offset = hole + 4096;
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+	/* snoop abutting after uncached -> error */
+	object[0].offset = hole + 4096;
+	object[1].offset = hole;
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), -EINVAL);
+
+	/* with gap -> okay */
+	object[0].offset = hole + 2*4096;
+	object[1].offset = hole;
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), 0);
+
+	/* And we should force the snoop away (or the GPU may hang) */
+	object[0].flags = 0;
+	object[1].offset = hole + 4096;
+	igt_assert_eq(__gem_execbuf(fd, &execbuf), 0);
+	igt_assert(object[0].offset != hole);
+	igt_assert(object[0].offset != hole + 2*4096);
+
+	gem_close(fd, object[0].handle);
+	gem_close(fd, object[1].handle);
+}
+
+static void test_evict_hang(int fd)
+{
+	const uint32_t bbe = MI_BATCH_BUFFER_END;
+	struct drm_i915_gem_execbuffer2 execbuf;
+	struct drm_i915_gem_exec_object2 object;
+	igt_hang_t hang;
+	uint64_t expected;
+
+	memset(&object, 0, sizeof(object));
+	object.handle = gem_create(fd, 4096);
+	gem_write(fd, object.handle, 0, &bbe, sizeof(bbe));
+
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(&object);
+	execbuf.buffer_count = 1;
+
+	hang = igt_hang_ctx(fd, 0, 0, 0);
+	expected = hang.spin->obj[1].offset;
+
+	/* Replace the hung batch with ourselves, forcing an eviction */
+	object.offset = expected;
+	object.flags = EXEC_OBJECT_PINNED;
+	gem_execbuf(fd, &execbuf);
+	igt_assert_eq_u64(object.offset, expected);
+
+	igt_post_hang_ring(fd, hang);
+	gem_close(fd, object.handle);
+}
+
+static void xchg_offset(void *array, unsigned i, unsigned j)
+{
+	struct drm_i915_gem_exec_object2 *object = array;
+	uint64_t tmp = object[i].offset;
+	object[i].offset = object[j].offset;
+	object[j].offset = tmp;
+}
+
+enum sleep { NOSLEEP, SUSPEND, HIBERNATE };
+static void test_noreloc(int fd, enum sleep sleep)
+{
+	const int gen = intel_gen(intel_get_drm_devid(fd));
+	const uint32_t size = 4096;
+	const uint32_t bbe = MI_BATCH_BUFFER_END;
+	struct drm_i915_gem_execbuffer2 execbuf;
+	struct drm_i915_gem_exec_object2 object[257];
+	uint64_t offset;
+	uint32_t handle;
+	uint32_t *batch, *b;
+	int i, loop;
+
+	handle = gem_create(fd, (ARRAY_SIZE(object)+1)*size);
+	gem_write(fd, handle, 0, &bbe, sizeof(bbe));
+
+	memset(object, 0, sizeof(object));
+	object[0].handle = handle;
+
+	/* Find a hole */
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer(object);
+	execbuf.buffer_count = 1;
+	if (gen < 6)
+		execbuf.flags |= I915_EXEC_SECURE;
+	gem_execbuf(fd, &execbuf);
+	gem_close(fd, object[0].handle);
+
+	igt_debug("Made a %dx%d KiB hole: %08llx\n",
+		  (int)ARRAY_SIZE(object), size/1024, object[0].offset);
+
+	offset = object[0].offset;
+	for (i = 0; i < ARRAY_SIZE(object) - 1; i++) {
+		object[i].handle = gem_create(fd, size);
+		object[i].offset = offset + i*size;
+		object[i].flags = EXEC_OBJECT_PINNED | EXEC_OBJECT_WRITE;
+	}
+	object[i].handle = gem_create(fd, 2*size);
+	object[i].offset = offset + i*size;
+	object[i].flags = EXEC_OBJECT_PINNED;
+
+	b = batch = gem_mmap__cpu(fd, object[i].handle, 0, 2*size, PROT_WRITE);
+	gem_set_domain(fd, object[i].handle,
+		       I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
+	for (i = 0; i < ARRAY_SIZE(object) - 1; i++) {
+		*b++ = MI_STORE_DWORD_IMM | (gen < 6 ? 1 << 22 : 0);
+		if (gen >= 8) {
+			*b++ = object[i].offset;
+			*b++ = object[i].offset >> 32;
+		} else if (gen >= 4) {
+			*b++ = 0;
+			*b++ = object[i].offset;
+		} else {
+			b[-1]--;
+			*b++ = object[i].offset;
+		}
+		*b++ = i;
+	}
+	*b++ = MI_BATCH_BUFFER_END;
+	igt_assert(b - batch <= 2*size/sizeof(uint32_t));
+	munmap(batch, size);
+
+	execbuf.buffer_count = ARRAY_SIZE(object);
+	for (loop = 0; loop < 1024; loop++) {
+		igt_permute_array(object, ARRAY_SIZE(object)-1, xchg_offset);
+		gem_execbuf(fd, &execbuf);
+
+		if ((loop & 127) == 0) {
+			switch (sleep) {
+			case NOSLEEP:
+				break;
+			case SUSPEND:
+				igt_system_suspend_autoresume(SUSPEND_STATE_MEM,
+							      SUSPEND_TEST_NONE);
+				break;
+			case HIBERNATE:
+				igt_system_suspend_autoresume(SUSPEND_STATE_DISK,
+							      SUSPEND_TEST_NONE);
+				break;
+			}
+		}
+
+		for (i = 0; i < ARRAY_SIZE(object) - 1; i++) {
+			uint32_t val;
+
+			gem_read(fd, object[i].handle, 0, &val, sizeof(val));
+			igt_assert_eq(val, (object[i].offset - offset)/size);
+		}
+	}
+
+	for (i = 0; i < ARRAY_SIZE(object); i++)
+		gem_close(fd, object[i].handle);
+}
+
+igt_main
+{
+	int fd = -1;
+
+	igt_skip_on_simulation();
+
+	igt_fixture {
+		fd = drm_open_driver_master(DRIVER_INTEL);
+		igt_require_gem(fd);
+		igt_require(gem_has_softpin(fd));
+		igt_require(gem_can_store_dword(fd, 0));
+	}
+
+	igt_subtest("invalid")
+		test_invalid(fd);
+	igt_subtest("softpin")
+		test_softpin(fd);
+	igt_subtest("overlap")
+		test_overlap(fd);
+
+	igt_subtest("noreloc")
+		test_noreloc(fd, NOSLEEP);
+	igt_subtest("noreloc-interruptible")
+		igt_while_interruptible(true) test_noreloc(fd, NOSLEEP);
+	igt_subtest("noreloc-S3")
+		test_noreloc(fd, SUSPEND);
+	igt_subtest("noreloc-S4")
+		test_noreloc(fd, HIBERNATE);
+
+	for (int signal = 0; signal <= 1; signal++) {
+		igt_subtest_f("evict-active%s", signal ? "-interruptible" : "")
+			igt_while_interruptible(signal) test_evict_active(fd);
+		igt_subtest_f("evict-snoop%s", signal ? "-interruptible" : "")
+			igt_while_interruptible(signal) test_evict_snoop(fd);
+	}
+	igt_subtest("evict-hang")
+		test_evict_hang(fd);
+
+	igt_fixture
+		close(fd);
+}