[igt-dev] [PATCH v2] tests/kms_bw: New test for bandwidth validation

* [igt-dev] [PATCH v2] tests/kms_bw: New test for bandwidth validation
@ 2021-07-22 21:54 Bindu Ramamurthy
  2021-07-23 13:33 ` Rodrigo Siqueira
                   ` (2 more replies)
  0 siblings, 3 replies; 6+ messages in thread
From: Bindu Ramamurthy @ 2021-07-22 21:54 UTC (permalink / raw)
  To: petri.latvala, arek, markyacoub, igt-dev
  Cc: Anson.Jacob, nicholas.choi, bindu.r

From: Aurabindo Pillai <aurabindo.pillai@amd.com>

Add linear tiling mode tests

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
---

Changes since v2:
   Test added as generic IGT. 


 tests/kms_bw.c    | 250 ++++++++++++++++++++++++++++++++++++++++++++++
 tests/meson.build |   1 +
 2 files changed, 251 insertions(+)
 create mode 100644 tests/kms_bw.c

diff --git a/tests/kms_bw.c b/tests/kms_bw.c
new file mode 100644
index 00000000..65b97c98
--- /dev/null
+++ b/tests/kms_bw.c
@@ -0,0 +1,250 @@
+/*
+ * Copyrights 2021 Advanced Micro Devices, Inc.
+ *
+ * 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 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 COPYRIGHT HOLDER(S) OR AUTHOR(S) 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.
+ */
+
+#include "drm_mode.h"
+#include "igt.h"
+#include "drm.h"
+#include <stdio.h>
+#include <xf86drmMode.h>
+
+/* Maximum pipes on any ASIC. */
+#define MAX_PIPES 6
+
+/* Common test data. */
+typedef struct data {
+        igt_display_t display;
+        igt_plane_t *primary[MAX_PIPES];
+        igt_output_t *output[MAX_PIPES];
+        igt_pipe_t *pipe[MAX_PIPES];
+        igt_pipe_crc_t *pipe_crc[MAX_PIPES];
+        drmModeModeInfo mode[MAX_PIPES];
+        enum pipe pipe_id[MAX_PIPES];
+        int w[MAX_PIPES];
+        int h[MAX_PIPES];
+        int fd;
+} data_t;
+
+static const drmModeModeInfo test_mode_1 = {
+	.name = "1920x1080p\0",
+	.vrefresh = 60,
+	.clock = 173000,
+	.hdisplay = 1920,
+	.hsync_start = 2048,
+	.hsync_end = 2248,
+	.htotal = 2576,
+	.vdisplay = 1080,
+	.vsync_start = 1083,
+	.vsync_end = 1088,
+	.vtotal = 1120,
+	.type = 0x40,
+	.flags = DRM_MODE_FLAG_NHSYNC,
+	.hskew = 0,
+	.vscan = 0,
+};
+
+static const drmModeModeInfo test_mode_2 = {
+	.name = "2560x1440p\0",
+	.vrefresh = 60,
+	.clock = 312250,
+	.hdisplay = 2560,
+	.hsync_start = 2752,
+	.hsync_end = 3024,
+	.htotal = 3488,
+	.vdisplay = 1440,
+	.vsync_start = 1443,
+	.vsync_end = 1448,
+	.vtotal = 1493,
+	.type = 0x40,
+	.flags = DRM_MODE_FLAG_NHSYNC,
+	.hskew = 0,
+	.vscan = 0,
+};
+
+static const drmModeModeInfo test_mode_3 = {
+	.name = "3840x2160p\0",
+	.vrefresh = 60,
+	.clock = 533000,
+	.hdisplay = 3840,
+	.hsync_start = 3888,
+	.hsync_end = 3920,
+	.htotal = 4000,
+	.vdisplay = 2160,
+	.vsync_start = 2163,
+	.vsync_end = 2168,
+	.vtotal = 2222,
+	.type = 0x40,
+	.flags = DRM_MODE_FLAG_NHSYNC,
+	.hskew = 0,
+	.vscan = 0,
+};
+
+static void test_init(data_t *data)
+{
+	igt_display_t *display = &data->display;
+	int i, max_pipes = display->n_pipes;
+
+	for_each_pipe(display, i) {
+		data->pipe_id[i] = PIPE_A + i;
+		data->pipe[i] = &data->display.pipes[data->pipe_id[i]];
+		data->primary[i] = igt_pipe_get_plane_type(
+			data->pipe[i], DRM_PLANE_TYPE_PRIMARY);
+		data->pipe_crc[i] =
+			igt_pipe_crc_new(data->fd, data->pipe_id[i], "auto");
+	}
+
+	for (i = 0; i < display->n_outputs && i < max_pipes; i++) {
+		igt_output_t *output = &display->outputs[i];
+
+		data->output[i] = output;
+
+		/* Only allow physically connected displays for the tests. */
+		if (!igt_output_is_connected(output))
+			continue;
+
+		igt_assert(kmstest_get_connector_default_mode(
+			data->fd, output->config.connector, &data->mode[i]));
+
+		data->w[i] = data->mode[i].hdisplay;
+		data->h[i] = data->mode[i].vdisplay;
+	}
+
+
+	igt_require(data->output[0]);
+	igt_display_reset(display);
+}
+
+static void test_fini(data_t *data)
+{
+	igt_display_t *display = &data->display;
+	int i;
+
+	for_each_pipe(display, i) {
+		igt_pipe_crc_free(data->pipe_crc[i]);
+	}
+
+	igt_display_reset(display);
+	igt_display_commit_atomic(display, DRM_MODE_ATOMIC_ALLOW_MODESET, 0);
+}
+
+/* Forces a mode for a connector. */
+static void force_output_mode(data_t *d, igt_output_t *output,
+			      const drmModeModeInfo *mode)
+{
+	/* This allows us to create a virtual sink. */
+	if (!igt_output_is_connected(output)) {
+		kmstest_force_edid(d->fd, output->config.connector,
+				   igt_kms_get_4k_edid());
+
+		kmstest_force_connector(d->fd, output->config.connector,
+					FORCE_CONNECTOR_DIGITAL);
+	}
+
+	igt_output_override_mode(output, mode);
+}
+
+static void run_test_linear_tiling(data_t *data, int pipe, const drmModeModeInfo *mode) {
+	igt_display_t *display = &data->display;
+	igt_output_t *output;
+	struct igt_fb buffer[MAX_PIPES];
+	igt_crc_t zero, captured[MAX_PIPES];
+	void *user_data = NULL;
+	int ret;
+	int i = 0;
+
+	test_init(data);
+
+	igt_skip_on_f(pipe >= igt_display_get_n_pipes(display),
+		      "ASIC does not have %d pipes\n", pipe);
+
+	/* create buffers */
+	for (i = 0; i <= pipe; i++) {
+
+		output = data->output[i];
+		if (!output) {
+			continue;
+		}
+
+		force_output_mode(data, output, mode);
+
+		igt_create_color_fb(display->drm_fd, test_mode_1.hdisplay,
+				    test_mode_1.vdisplay, DRM_FORMAT_XRGB8888,
+				    DRM_FORMAT_MOD_NONE, 1.f, 0.f, 0.f,
+				    &buffer[i]);
+
+		igt_output_set_pipe(output, i);
+
+		igt_plane_set_fb(data->primary[i], &buffer[i]);
+	}
+
+	ret = igt_display_try_commit_atomic(
+		display, DRM_MODE_ATOMIC_ALLOW_MODESET, user_data);
+
+	igt_assert_f(ret >= 0, "Modeset failed\n");
+
+	for (i = 0; i <= pipe; i++) {
+		igt_pipe_crc_collect_crc(data->pipe_crc[i], &captured[i]);
+		igt_assert_f(!igt_check_crc_equal(&zero, &captured[i]),
+			     "CRC is zero\n");
+		igt_remove_fb(display->drm_fd, &buffer[i]);
+	}
+
+	test_fini(data);
+}
+
+igt_main
+{
+	data_t data;
+	int i = 0;
+
+	igt_skip_on_simulation();
+
+	memset(&data, 0, sizeof(data));
+
+	igt_fixture
+	{
+		data.fd = drm_open_driver_master(DRIVER_ANY);
+
+		kmstest_set_vt_graphics_mode();
+
+		igt_display_require(&data.display, data.fd);
+		igt_require(&data.display.is_atomic);
+		igt_display_require_output(&data.display);
+
+	}
+
+	for (i = 0; i < MAX_PIPES; i++) {
+		igt_subtest_f("linear-tiling-%d-displays-%s", i+1,
+			      test_mode_1.name)
+			run_test_linear_tiling(&data, i, &test_mode_1);
+		igt_subtest_f("linear-tiling-%d-displays-%s", i+1,
+			      test_mode_2.name)
+			run_test_linear_tiling(&data, i, &test_mode_2);
+		igt_subtest_f("linear-tiling-%d-displays-%s", i+1,
+			      test_mode_3.name)
+			run_test_linear_tiling(&data, i, &test_mode_3);
+	}
+
+	igt_fixture
+	{
+		igt_display_fini(&data.display);
+	}
+}
diff --git a/tests/meson.build b/tests/meson.build
index 1bdfddbb..6d1ebe42 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -22,6 +22,7 @@ test_progs = [
 	'kms_big_fb',
 	'kms_big_joiner' ,
 	'kms_busy',
+	'kms_bw',
 	'kms_ccs',
 	'kms_cdclk',
 	'kms_concurrent',
-- 
2.25.1

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