tests/kms: Move Intel specific kms tests to i915 directory

As KMS tests on IGT are officially supported on multiple SoCs
and there is an active development on it. So, KMS tests are
meant to be generic and if we need to test few things specific
to Intel, we can use igt_require_intel(). But if the whole test
is Intel specific, then the best place for the test would be
tests/i915.

This patch will
* Move all Intel specific kms tests to tests/i915 directory.
* Update the tests those are generic but still open the driver
  as 'drm_open_driver_master(DRIVER_INTEL);'.

V2:
* Few more tests
V3:
* Remove cleanups (will submit separate patch later)
* Move few more tests to i915 dir (Karthik)
V4:
* Move kms_big_joiner.c to i915 dir (Karthik)

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Mark Yacoub <markyacoub@chromium.org>
Cc: Petri Latvala <petri.latvala@intel.com>
Cc: Vidya Srinivas <vidya.srinivas@intel.com>
Cc: Karthik B S <karthik.b.s@intel.com>
Signed-off-by: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
Reviewed-by: Mark Yacoub <markyacoub@chromium.org>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Reviewed-by: Karthik B S <karthik.b.s@intel.com>

1 files changed, 295 insertions, 0 deletions

diff --git a/tests/i915/kms_pipe_b_c_ivb.c b/tests/i915/kms_pipe_b_c_ivb.c
new file mode 100644
index 00000000..5823ae2a
--- /dev/null
+++ b/tests/i915/kms_pipe_b_c_ivb.c
@@ -0,0 +1,295 @@
+/*
+ * 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:
+ *   Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
+ */
+
+#include "igt.h"
+
+IGT_TEST_DESCRIPTION(
+"Exercise the FDI lane bifurcation code for IVB in the kernel by setting"
+"different combinations of modes for pipes B and C.");
+
+typedef struct {
+	int drm_fd;
+	igt_display_t display;
+} data_t;
+
+drmModeModeInfo mode_3_lanes = {
+	.clock = 173000,
+	.hdisplay = 1920,
+	.hsync_start = 2048,
+	.hsync_end = 2248,
+	.htotal = 2576,
+	.vdisplay = 1080,
+	.vsync_start = 1083,
+	.vsync_end = 1088,
+	.vtotal = 1120,
+	.vrefresh = 60,
+	.flags = DRM_MODE_FLAG_NHSYNC | DRM_MODE_FLAG_PVSYNC,
+	.name = "3_lanes",
+};
+
+drmModeModeInfo mode_2_lanes = {
+	.clock = 138500,
+	.hdisplay = 1920,
+	.hsync_start = 1968,
+	.hsync_end = 2000,
+	.htotal = 2080,
+	.vdisplay = 1080,
+	.vsync_start = 1083,
+	.vsync_end = 1088,
+	.vtotal = 1111,
+	.vrefresh = 60,
+	.flags = DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NVSYNC,
+	.name = "2_lanes",
+};
+
+static int
+disable_pipe(data_t *data, enum pipe pipe, igt_output_t *output)
+{
+	igt_plane_t *primary;
+
+	igt_output_set_pipe(output, pipe);
+	primary = igt_output_get_plane(output, 0);
+	igt_plane_set_fb(primary, NULL);
+	return igt_display_commit(&data->display);
+}
+
+static int
+set_mode_on_pipe(data_t *data, enum pipe pipe, igt_output_t *output)
+{
+	igt_plane_t *primary;
+	drmModeModeInfo *mode;
+	struct igt_fb fb;
+	int fb_id;
+
+	igt_output_set_pipe(output, pipe);
+
+	mode = igt_output_get_mode(output);
+
+	primary = igt_output_get_plane(output, 0);
+
+	fb_id = igt_create_color_fb(data->drm_fd,
+				    mode->hdisplay, mode->vdisplay,
+				    DRM_FORMAT_XRGB8888, I915_TILING_NONE,
+				    1.0, 1.0, 1.0, &fb);
+	igt_assert_lte(0, fb_id);
+
+	igt_plane_set_fb(primary, &fb);
+	return igt_display_try_commit2(&data->display, COMMIT_LEGACY);
+}
+
+static int
+set_big_mode_on_pipe(data_t *data, enum pipe pipe, igt_output_t *output)
+{
+	igt_output_override_mode(output, &mode_3_lanes);
+	return set_mode_on_pipe(data, pipe, output);
+}
+
+static int
+set_normal_mode_on_pipe(data_t *data, enum pipe pipe, igt_output_t *output)
+{
+	igt_output_override_mode(output, &mode_2_lanes);
+	return set_mode_on_pipe(data, pipe, output);
+}
+
+static void
+find_outputs(data_t *data, igt_output_t **output1, igt_output_t **output2)
+{
+	igt_output_t *output;
+	enum pipe pipe;
+
+	*output1 = NULL;
+	*output2 = NULL;
+
+	for_each_pipe_with_valid_output(&data->display, pipe, output) {
+		if (pipe == PIPE_B && !*output1 && output != *output2)
+			*output1 = output;
+
+		if (pipe == PIPE_C && output != *output1 && !*output2)
+			*output2 = output;
+
+		igt_output_set_pipe(output, PIPE_ANY);
+	}
+
+	igt_skip_on_f(!*output1 || !*output2, "Not enough connected outputs\n");
+}
+
+static void
+test_dpms(data_t *data)
+{
+	igt_output_t *output1, *output2;
+	int ret;
+
+	find_outputs(data, &output1, &output2);
+
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_B), igt_output_name(output1));
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_C), igt_output_name(output2));
+
+	ret = set_big_mode_on_pipe(data, PIPE_B, output1);
+	igt_assert_eq(ret, 0);
+
+	kmstest_set_connector_dpms(data->drm_fd, output1->config.connector, DRM_MODE_DPMS_OFF);
+
+	ret = set_big_mode_on_pipe(data, PIPE_C, output2);
+	igt_assert_neq(ret, 0);
+}
+
+static void
+test_lane_reduction(data_t *data)
+{
+	igt_output_t *output1, *output2;
+	int ret;
+
+	find_outputs(data, &output1, &output2);
+
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_B), igt_output_name(output1));
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_C), igt_output_name(output2));
+
+	ret = set_big_mode_on_pipe(data, PIPE_B, output1);
+	igt_assert_eq(ret, 0);
+
+	ret = set_normal_mode_on_pipe(data, PIPE_B, output1);
+	igt_assert_eq(ret, 0);
+
+	ret = set_normal_mode_on_pipe(data, PIPE_C, output2);
+	igt_assert_eq(ret, 0);
+}
+
+static void
+test_disable_pipe_B(data_t *data)
+{
+	igt_output_t *output1, *output2;
+	int ret;
+
+	find_outputs(data, &output1, &output2);
+
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_B), igt_output_name(output1));
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_C), igt_output_name(output2));
+
+	ret = set_big_mode_on_pipe(data, PIPE_B, output1);
+	igt_assert_eq(ret, 0);
+
+	ret = disable_pipe(data, PIPE_B, output1);
+	igt_assert_eq(ret, 0);
+
+	ret = set_normal_mode_on_pipe(data, PIPE_C, output2);
+	igt_assert_eq(ret, 0);
+
+	ret = set_normal_mode_on_pipe(data, PIPE_B, output1);
+	igt_assert_eq(ret, 0);
+}
+
+static void
+test_from_C_to_B_with_3_lanes(data_t *data)
+{
+	igt_output_t *output1, *output2;
+	int ret;
+
+	find_outputs(data, &output1, &output2);
+
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_B), igt_output_name(output1));
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_C), igt_output_name(output2));
+
+	ret = set_normal_mode_on_pipe(data, PIPE_C, output2);
+	igt_assert_eq(ret, 0);
+
+	ret = disable_pipe(data, PIPE_C, output2);
+	igt_assert_eq(ret, 0);
+
+	ret = set_big_mode_on_pipe(data, PIPE_B, output1);
+	igt_assert_eq(ret, 0);
+}
+
+static void
+test_fail_enable_pipe_C_while_B_has_3_lanes(data_t *data)
+{
+	igt_output_t *output1, *output2;
+	int ret;
+
+	find_outputs(data, &output1, &output2);
+
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_B), igt_output_name(output1));
+	igt_info("Pipe %s will use connector %s\n",
+		 kmstest_pipe_name(PIPE_C), igt_output_name(output2));
+
+	ret = set_big_mode_on_pipe(data, PIPE_B, output1);
+	igt_assert_eq(ret, 0);
+
+	ret = set_normal_mode_on_pipe(data, PIPE_C, output2);
+	igt_assert_neq(ret, 0);
+}
+
+static data_t data;
+igt_main
+{
+	int devid;
+
+	igt_fixture {
+		data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
+		devid = intel_get_drm_devid(data.drm_fd);
+		igt_skip_on(!IS_IVYBRIDGE(devid));
+
+		kmstest_set_vt_graphics_mode();
+		igt_display_require(&data.display, data.drm_fd);
+	}
+
+	igt_describe("Tests pipe-B and pipe-C interactions in IVB by enabling pipe-B with mode "
+		     "that requires 3 lanes and then enabling pipe-c with dpms off/on pipe-B.");
+	igt_subtest("pipe-B-dpms-off-modeset-pipe-C")
+		test_dpms(&data);
+
+	igt_describe("Tests pipe-B and pipe-C interactions in IVB by enabling 2 different modes "
+		     "on pipe-B and then a single mode on pipe-C.");
+	igt_subtest("pipe-B-double-modeset-then-modeset-pipe-C")
+		test_lane_reduction(&data);
+
+	igt_describe("Tests pipe-B and pipe-C interactions in IVB by disabling pipe-B and then "
+		     "setting mode on pipe-C.");
+	igt_subtest("disable-pipe-B-enable-pipe-C")
+		test_disable_pipe_B(&data);
+
+	igt_describe("Tests pipe-B and pipe-C interactions in IVB by enabling pipe-B with 3 lanes "
+		     "from pipe-C.");
+	igt_subtest("from-pipe-C-to-B-with-3-lanes")
+		test_from_C_to_B_with_3_lanes(&data);
+
+	igt_describe("Tests pipe-B and pipe-C interactions in IVB by enabling pipe-C while pipe-B "
+		     "has 3-lanes");
+	igt_subtest("enable-pipe-C-while-B-has-3-lanes")
+		test_fail_enable_pipe_C_while_B_has_3_lanes(&data);
+
+	igt_fixture {
+		igt_display_fini(&data.display);
+	}
+}