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, 186 insertions, 0 deletions

diff --git a/tests/i915/gem_mmap.c b/tests/i915/gem_mmap.c
new file mode 100644
index 00000000..0ed15878
--- /dev/null
+++ b/tests/i915/gem_mmap.c
@@ -0,0 +1,186 @@
+/*
+ * Copyright © 2008 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:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include "igt.h"
+#include <unistd.h>
+#include <stdlib.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 "drm.h"
+
+#define OBJECT_SIZE 16384
+#define PAGE_SIZE 4096
+int fd;
+
+static void
+test_huge_bo(int huge)
+{
+	uint64_t huge_object_size, last_offset, i;
+	unsigned check = CHECK_RAM;
+	char *ptr_cpu;
+	char *cpu_pattern;
+	uint32_t bo;
+	int loop;
+
+	switch (huge) {
+	case -1:
+		huge_object_size = gem_mappable_aperture_size() / 2;
+		break;
+	case 0:
+		huge_object_size = gem_mappable_aperture_size() + PAGE_SIZE;
+		break;
+	case 1:
+		huge_object_size = gem_aperture_size(fd) + PAGE_SIZE;
+		break;
+	case 2:
+		huge_object_size = (intel_get_total_ram_mb() + 1) << 20;
+		check |= CHECK_SWAP;
+		break;
+	default:
+		return;
+	}
+	intel_require_memory(1, huge_object_size, check);
+
+	last_offset = huge_object_size - PAGE_SIZE;
+
+	cpu_pattern = malloc(PAGE_SIZE);
+	igt_assert(cpu_pattern);
+	for (i = 0; i < PAGE_SIZE; i++)
+		cpu_pattern[i] = i;
+
+	bo = gem_create(fd, huge_object_size);
+
+	/* Obtain CPU mapping for the object. */
+	ptr_cpu = __gem_mmap__cpu(fd, bo, 0, huge_object_size,
+				PROT_READ | PROT_WRITE);
+	igt_require(ptr_cpu);
+	gem_set_domain(fd, bo, I915_GEM_DOMAIN_CPU, I915_GEM_DOMAIN_CPU);
+	gem_close(fd, bo);
+
+	igt_debug("Exercising %'llu bytes\n", (long long)huge_object_size);
+
+	loop = 0;
+	do {
+		/* Write first page through the mapping and
+		 * assert reading it back works.
+		 */
+		memcpy(ptr_cpu, cpu_pattern, PAGE_SIZE);
+		igt_assert(memcmp(ptr_cpu, cpu_pattern, PAGE_SIZE) == 0);
+		memset(ptr_cpu, 0xcc, PAGE_SIZE);
+
+		/* Write last page through the mapping and
+		 * assert reading it back works.
+		 */
+		memcpy(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE);
+		igt_assert(memcmp(ptr_cpu + last_offset, cpu_pattern, PAGE_SIZE) == 0);
+		memset(ptr_cpu + last_offset, 0xcc, PAGE_SIZE);
+
+		/* Cross check that accessing two simultaneous pages works. */
+		igt_assert(memcmp(ptr_cpu, ptr_cpu + last_offset, PAGE_SIZE) == 0);
+
+		/* Force every page to be faulted and retest */
+		for (i = 0; i < huge_object_size; i += 4096)
+			ptr_cpu[i] = i >> 12;
+	} while (loop++ == 0);
+
+	munmap(ptr_cpu, huge_object_size);
+	free(cpu_pattern);
+}
+
+igt_main
+{
+	struct drm_i915_gem_mmap arg;
+	uint8_t expected[OBJECT_SIZE];
+	uint8_t buf[OBJECT_SIZE];
+	uint8_t *addr;
+	int ret;
+
+	igt_fixture
+		fd = drm_open_driver(DRIVER_INTEL);
+
+	igt_subtest("bad-object") {
+		memset(&arg, 0, sizeof(arg));
+		arg.handle = 0x10101010;
+		arg.offset = 0;
+		arg.size = 4096;
+		ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP, &arg);
+		igt_assert(ret == -1 && errno == ENOENT);
+	}
+
+	igt_subtest("basic") {
+		arg.handle = gem_create(fd, OBJECT_SIZE);
+		arg.offset = 0;
+		arg.size = OBJECT_SIZE;
+		ret = ioctl(fd, DRM_IOCTL_I915_GEM_MMAP, &arg);
+		igt_assert(ret == 0);
+		addr = from_user_pointer(arg.addr_ptr);
+
+		igt_info("Testing contents of newly created object.\n");
+		memset(expected, 0, sizeof(expected));
+		igt_assert(memcmp(addr, expected, sizeof(expected)) == 0);
+
+		igt_info("Testing coherency of writes and mmap reads.\n");
+		memset(buf, 0, sizeof(buf));
+		memset(buf + 1024, 0x01, 1024);
+		memset(expected + 1024, 0x01, 1024);
+		gem_write(fd, arg.handle, 0, buf, OBJECT_SIZE);
+		igt_assert(memcmp(buf, addr, sizeof(buf)) == 0);
+
+		igt_info("Testing that mapping stays after close\n");
+		gem_close(fd, arg.handle);
+		igt_assert(memcmp(buf, addr, sizeof(buf)) == 0);
+
+		igt_info("Testing unmapping\n");
+		munmap(addr, OBJECT_SIZE);
+	}
+
+	igt_subtest("short-mmap") {
+		igt_assert(OBJECT_SIZE > 4096);
+		arg.handle = gem_create(fd, OBJECT_SIZE);
+		addr = gem_mmap__cpu(fd, arg.handle, 0, 4096, PROT_WRITE);
+		memset(addr, 0, 4096);
+		munmap(addr, 4096);
+		gem_close(fd, arg.handle);
+	}
+
+	igt_subtest("basic-small-bo")
+		test_huge_bo(-1);
+	igt_subtest("big-bo")
+		test_huge_bo(0);
+	igt_subtest("huge-bo")
+		test_huge_bo(1);
+	igt_subtest("swap-bo")
+		test_huge_bo(2);
+
+	igt_fixture
+		close(fd);
+}