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, 263 insertions, 0 deletions

diff --git a/tests/i915/gem_exec_lut_handle.c b/tests/i915/gem_exec_lut_handle.c
new file mode 100644
index 00000000..98e6ae5a
--- /dev/null
+++ b/tests/i915/gem_exec_lut_handle.c
@@ -0,0 +1,263 @@
+/*
+ * 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:
+ *    Chris Wilson <chris@chris-wilson.co.uk>
+ *
+ */
+
+/* Exercises the basic execbuffer using the handle LUT interface */
+
+#include "igt.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/time.h>
+#include "drm.h"
+
+IGT_TEST_DESCRIPTION("Exercises the basic execbuffer using the handle LUT"
+		     " interface.");
+
+#define BATCH_SIZE		(1024*1024)
+
+#define LOCAL_I915_EXEC_NO_RELOC (1<<11)
+#define LOCAL_I915_EXEC_HANDLE_LUT (1<<12)
+
+#define MAX_NUM_EXEC 2048
+#define MAX_NUM_RELOC 4096
+
+#define SKIP_RELOC 0x1
+#define NO_RELOC 0x2
+#define CYCLE_BATCH 0x4
+#define FAULT 0x8
+
+int target[MAX_NUM_RELOC];
+struct drm_i915_gem_exec_object2 gem_exec[MAX_NUM_EXEC+1];
+struct drm_i915_gem_relocation_entry mem_reloc[MAX_NUM_RELOC];
+
+static uint32_t state = 0x12345678;
+
+static uint32_t
+hars_petruska_f54_1_random (void)
+{
+#define rol(x,k) ((x << k) | (x >> (32-k)))
+    return state = (state ^ rol (state, 5) ^ rol (state, 24)) + 0x37798849;
+#undef rol
+}
+
+static int has_exec_lut(int fd)
+{
+	struct drm_i915_gem_execbuffer2 execbuf;
+
+	memset(&execbuf, 0, sizeof(execbuf));
+	execbuf.buffers_ptr = to_user_pointer((gem_exec + MAX_NUM_EXEC));
+	execbuf.buffer_count = 1;
+	execbuf.flags = LOCAL_I915_EXEC_HANDLE_LUT;
+
+	return __gem_execbuf(fd, &execbuf) == 0;
+}
+
+#define ELAPSED(a,b) (1e6*((b)->tv_sec - (a)->tv_sec) + ((b)->tv_usec - (a)->tv_usec))
+igt_simple_main
+{
+	uint32_t batch[2] = {MI_BATCH_BUFFER_END};
+	uint32_t cycle[16];
+	int fd, n, m, count, c;
+	const struct {
+		const char *name;
+		unsigned int flags;
+	} pass[] = {
+		{ .name = "relocation", .flags = 0 },
+		{ .name = "cycle-relocation", .flags = CYCLE_BATCH },
+		{ .name = "fault-relocation", .flags = FAULT },
+		{ .name = "skip-relocs", .flags = SKIP_RELOC },
+		{ .name = "no-relocs", .flags = SKIP_RELOC | NO_RELOC },
+		{ .name = NULL },
+	}, *p;
+	struct drm_i915_gem_relocation_entry *reloc;
+	uint32_t reloc_handle;
+	int size;
+
+	igt_skip_on_simulation();
+
+	fd = drm_open_driver(DRIVER_INTEL);
+	igt_require_gem(fd);
+
+	memset(gem_exec, 0, sizeof(gem_exec));
+	for (n = 0; n < MAX_NUM_EXEC; n++)
+		gem_exec[n].handle = gem_create(fd, 4096);
+
+	for (n = 0; n < 16; n++) {
+		cycle[n] = gem_create(fd, 4096);
+		gem_write(fd, cycle[n], 0, batch, sizeof(batch));
+	}
+	gem_exec[MAX_NUM_EXEC].handle = cycle[0];
+
+	memset(mem_reloc, 0, sizeof(mem_reloc));
+	for (n = 0; n < MAX_NUM_RELOC; n++) {
+		mem_reloc[n].offset = 1024;
+		mem_reloc[n].read_domains = I915_GEM_DOMAIN_RENDER;
+	}
+
+	size = ALIGN(sizeof(mem_reloc), 4096);
+	reloc_handle = gem_create(fd, size);
+	reloc = gem_mmap__cpu(fd, reloc_handle, 0, size, PROT_READ | PROT_WRITE);
+	for (n = 0; n < MAX_NUM_RELOC; n++) {
+		reloc[n].offset = 1024;
+		reloc[n].read_domains = I915_GEM_DOMAIN_RENDER;
+	}
+	munmap(reloc, size);
+
+	igt_require(has_exec_lut(fd));
+
+	for (p = pass; p->name != NULL; p++) {
+		if (p->flags & FAULT)
+			igt_disable_prefault();
+		for (n = 1; n <= MAX_NUM_EXEC; n *= 2) {
+			double elapsed[16][2];
+			double s_x, s_y, s_xx, s_xy;
+			double A, B;
+			int i, j;
+
+			for (i = 0, m = 1; m <= MAX_NUM_RELOC; m *= 2, i++) {
+				struct drm_i915_gem_execbuffer2 execbuf;
+				struct drm_i915_gem_exec_object2 *objects;
+				struct timeval start, end;
+
+				if (p->flags & FAULT)
+					reloc = __gem_mmap__cpu(fd, reloc_handle, 0, size, PROT_READ | PROT_WRITE);
+				else
+					reloc = mem_reloc;
+
+				gem_exec[MAX_NUM_EXEC].relocation_count = m;
+				gem_exec[MAX_NUM_EXEC].relocs_ptr = to_user_pointer(reloc);
+				objects = gem_exec + MAX_NUM_EXEC - n;
+
+				memset(&execbuf, 0, sizeof(execbuf));
+				execbuf.buffers_ptr = to_user_pointer(objects);
+				execbuf.buffer_count = n + 1;
+				execbuf.flags = LOCAL_I915_EXEC_HANDLE_LUT;
+				if (p->flags & NO_RELOC)
+					execbuf.flags |= LOCAL_I915_EXEC_NO_RELOC;
+
+				for (j = 0; j < m; j++) {
+					target[j] = hars_petruska_f54_1_random() % n;
+					reloc[j].target_handle = target[j];
+					reloc[j].presumed_offset = -1;
+				}
+
+				gem_execbuf(fd,&execbuf);
+				gettimeofday(&start, NULL);
+				for (count = 0; count < 1000; count++) {
+					if ((p->flags & SKIP_RELOC) == 0) {
+						for (j = 0; j < m; j++)
+							reloc[j].presumed_offset = -1;
+						if (p->flags & CYCLE_BATCH) {
+							c = (c + 1) % 16;
+							gem_exec[MAX_NUM_EXEC].handle = cycle[c];
+						}
+					}
+					if (p->flags & FAULT) {
+						munmap(reloc, size);
+						reloc = __gem_mmap__cpu(fd, reloc_handle, 0, size, PROT_READ | PROT_WRITE);
+						gem_exec[MAX_NUM_EXEC].relocs_ptr = to_user_pointer(reloc);
+					}
+					gem_execbuf(fd, &execbuf);
+				}
+				gettimeofday(&end, NULL);
+				c = 16;
+				do
+					gem_sync(fd, cycle[--c]);
+				while (c != 0);
+				gem_exec[MAX_NUM_EXEC].handle = cycle[c];
+				elapsed[i][1] = ELAPSED(&start, &end);
+
+				execbuf.flags &= ~LOCAL_I915_EXEC_HANDLE_LUT;
+				for (j = 0; j < m; j++)
+					reloc[j].target_handle = objects[target[j]].handle;
+
+				gem_execbuf(fd,&execbuf);
+				gettimeofday(&start, NULL);
+				for (count = 0; count < 1000; count++) {
+					if ((p->flags & SKIP_RELOC) == 0) {
+						for (j = 0; j < m; j++)
+							reloc[j].presumed_offset = -1;
+						if (p->flags & CYCLE_BATCH) {
+							c = (c + 1) % 16;
+							gem_exec[MAX_NUM_EXEC].handle = cycle[c];
+						}
+					}
+					if (p->flags & FAULT) {
+						munmap(reloc, size);
+						reloc = __gem_mmap__cpu(fd, reloc_handle, 0, size, PROT_READ | PROT_WRITE);
+						gem_exec[MAX_NUM_EXEC].relocs_ptr = to_user_pointer(reloc);
+					}
+					gem_execbuf(fd, &execbuf);
+				}
+				gettimeofday(&end, NULL);
+				c = 16;
+				do
+					gem_sync(fd, cycle[--c]);
+				while (c != 0);
+				gem_exec[MAX_NUM_EXEC].handle = cycle[c];
+				elapsed[i][0] = ELAPSED(&start, &end);
+
+				if (p->flags & FAULT)
+					munmap(reloc, size);
+			}
+
+			igt_info("%s: buffers=%4d:", p->name, n);
+
+			s_x = s_y = s_xx = s_xy = 0;
+			for (j = 0; j < i; j++) {
+				int k = 1 << j;
+				s_x += k;
+				s_y += elapsed[j][0];
+				s_xx += k * k;
+				s_xy += k * elapsed[j][0];
+			}
+			B = (s_xy - s_x * s_y / j) / (s_xx - s_x * s_x / j);
+			A = s_y / j - B * s_x / j;
+			igt_info(" old=%7.0f + %.1f*reloc,", A, B);
+
+			s_x = s_y = s_xx = s_xy = 0;
+			for (j = 0; j < i; j++) {
+				int k = 1 << j;
+				s_x += k;
+				s_y += elapsed[j][1];
+				s_xx += k * k;
+				s_xy += k * elapsed[j][1];
+			}
+			B = (s_xy - s_x * s_y / j) / (s_xx - s_x * s_x / j);
+			A = s_y / j - B * s_x / j;
+			igt_info(" lut=%7.0f + %.1f*reloc (ns)", A, B);
+
+			igt_info("\n");
+		}
+		if (p->flags & FAULT)
+			igt_enable_prefault();
+	}
+}