[Intel-gfx] [PATCH 01/18] tests/gem_storedw_loop: add new store_dword test to unify per-ring ones

[Jesse Barnes]

There was a lot of duplication going on...  Mark as basic while we're at
it as these should never fail.

Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org>
---
 tests/Makefile.sources   |   1 +
 tests/gem_storedw_loop.c | 181 +++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 182 insertions(+)
 create mode 100644 tests/gem_storedw_loop.c

diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index b9a4cb4..cdcee33 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -138,6 +138,7 @@ TESTS_progs = \
 	gem_seqno_wrap \
 	gem_set_tiling_vs_gtt \
 	gem_set_tiling_vs_pwrite \
+	gem_storedw_loop \
 	gem_storedw_loop_blt \
 	gem_storedw_loop_bsd \
 	gem_storedw_loop_render \
diff --git a/tests/gem_storedw_loop.c b/tests/gem_storedw_loop.c
new file mode 100644
index 0000000..e4ed35d
--- /dev/null
+++ b/tests/gem_storedw_loop.c
@@ -0,0 +1,181 @@
+/*
+ * Copyright © 2009 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 at anholt.net>
+ *    Jesse Barnes <jbarnes at virtuousgeek.org> (based on gem_bad_blit.c)
+ *
+ */
+
+#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"
+#include "ioctl_wrappers.h"
+#include "drmtest.h"
+#include "intel_bufmgr.h"
+#include "intel_batchbuffer.h"
+#include "intel_io.h"
+#include "intel_chipset.h"
+
+IGT_TEST_DESCRIPTION("Basic CS check using MI_STORE_DATA_IMM.");
+
+#define LOCAL_I915_EXEC_VEBOX (4<<0)
+
+static drm_intel_bufmgr *bufmgr;
+struct intel_batchbuffer *batch;
+static drm_intel_bo *target_buffer;
+static int has_ppgtt = 0;
+static int devid;
+
+/*
+ * Testcase: Basic bsd MI check using MI_STORE_DATA_IMM
+ */
+
+static void
+emit_store_dword_imm(drm_intel_bo *dest, uint32_t val)
+{
+	int cmd;
+	cmd = MI_STORE_DWORD_IMM;
+	if (!has_ppgtt)
+		cmd |= MI_MEM_VIRTUAL;
+
+	BEGIN_BATCH(4, 0);
+	OUT_BATCH(cmd);
+	if (batch->gen >= 8) {
+		OUT_RELOC(dest, I915_GEM_DOMAIN_INSTRUCTION,
+			  I915_GEM_DOMAIN_INSTRUCTION, 0);
+		OUT_BATCH(val);
+	} else {
+		OUT_BATCH(0); /* reserved */
+		OUT_RELOC(dest, I915_GEM_DOMAIN_INSTRUCTION,
+			  I915_GEM_DOMAIN_INSTRUCTION, 0);
+		OUT_BATCH(val);
+	}
+	ADVANCE_BATCH();
+}
+
+static void
+store_dword_loop(int ring, int count, int divider)
+{
+	int i, val = 0;
+	uint32_t *buf;
+
+	igt_info("running storedw loop on render with stall every %i batch\n", divider);
+
+	for (i = 0; i < SLOW_QUICK(0x2000, 0x10); i++) {
+		emit_store_dword_imm(target_buffer, val);
+		intel_batchbuffer_flush_on_ring(batch, ring);
+
+		if (i % divider != 0)
+			goto cont;
+
+		drm_intel_bo_map(target_buffer, 0);
+
+		buf = target_buffer->virtual;
+		igt_assert_f(buf[0] == val,
+			     "value mismatch: cur 0x%08x, stored 0x%08x\n",
+			     buf[0], val);
+
+		drm_intel_bo_unmap(target_buffer);
+
+cont:
+		val++;
+	}
+
+	drm_intel_bo_map(target_buffer, 0);
+	buf = target_buffer->virtual;
+
+	igt_info("completed %d writes successfully, current value: 0x%08x\n", i,
+			buf[0]);
+	drm_intel_bo_unmap(target_buffer);
+}
+
+static void
+store_test(int ring, int count)
+{
+	drm_intel_bufmgr_gem_enable_reuse(bufmgr);
+
+	batch = intel_batchbuffer_alloc(bufmgr, devid);
+	igt_assert(batch);
+
+	target_buffer = drm_intel_bo_alloc(bufmgr, "target bo", 4096, 4096);
+	igt_assert(target_buffer);
+
+	store_dword_loop(ring, count, 1);
+	store_dword_loop(ring, count, 2);
+	if (!igt_run_in_simulation()) {
+		store_dword_loop(ring, count, 3);
+		store_dword_loop(ring, count, 5);
+	}
+
+	drm_intel_bo_unreference(target_buffer);
+	intel_batchbuffer_free(batch);
+	drm_intel_bufmgr_destroy(bufmgr);
+}
+
+struct ring {
+	const char *name;
+	int id;
+} rings[] = {
+	{ "bsd", I915_EXEC_BSD },
+	{ "render", I915_EXEC_RENDER },
+	{ "blt", I915_EXEC_BLT },
+	{ "vebox", I915_EXEC_VEBOX },
+};
+
+igt_main
+{
+	int fd, i;
+
+	igt_fixture {
+		fd = drm_open_any();
+		devid = intel_get_drm_devid(fd);
+
+		bufmgr = drm_intel_bufmgr_gem_init(fd, 4096);
+		igt_assert(bufmgr);
+
+		has_ppgtt = gem_uses_aliasing_ppgtt(fd);
+
+		igt_skip_on_f(intel_gen(devid) < 6,
+			      "MI_STORE_DATA can only use GTT address on gen4+/g33 and "
+			      "needs snoopable mem on pre-gen6\n");
+
+		/* This only works with ppgtt */
+		igt_require(has_ppgtt);
+	}
+
+	for (i = 0; i < ARRAY_SIZE(rings); i++) {
+		igt_subtest_f("basic-%s", rings[i].name)
+			store_test(rings[i].id, 16*1024);
+
+		igt_subtest_f("long-%s", rings[i].name)
+			store_test(rings[i].id, 1024*1024);
+	}
+
+	close(fd);
+}
-- 
1.9.1