The tests exercise different combinations of enabling pipe B with modes
that require more than 2 lanes and then enabling pipe C.
v2: Added a couple more tests for different pipe transitions. (Ander)
Use custom modes to make the test reliable. (Daniel)
v3: Add IGT_TEST_DESCRIPTION. (Thomas)
Rename test to kms_pipe_b_c_ivb. (Ander)
v4: Fix subtest enumeration. (Thomas)
---
tests/.gitignore | 1 +
tests/Makefile.sources | 1 +
tests/kms_pipe_b_c_ivb.c | 289 +++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 291 insertions(+)
create mode 100644 tests/kms_pipe_b_c_ivb.c
diff --git a/tests/.gitignore b/tests/.gitignore
index 843db4a..1f0e2d1 100644
--- a/tests/.gitignore
+++ b/tests/.gitignore
@@ -132,6 +132,7 @@ kms_flip_event_leak
kms_flip_tiling
kms_force_connector
kms_mmio_vs_cs_flip
+kms_pipe_b_c_ivb
kms_pipe_crc_basic
kms_plane
kms_psr_sink_crc
diff --git a/tests/Makefile.sources b/tests/Makefile.sources
index 0a974a6..93e05e4 100644
--- a/tests/Makefile.sources
+++ b/tests/Makefile.sources
@@ -75,6 +75,7 @@ TESTS_progs_M = \
kms_flip_tiling \
kms_flip_event_leak \
kms_mmio_vs_cs_flip \
+ kms_pipe_b_c_ivb \
kms_pipe_crc_basic \
kms_plane \
kms_psr_sink_crc \
diff --git a/tests/kms_pipe_b_c_ivb.c b/tests/kms_pipe_b_c_ivb.c
new file mode 100644
index 0000000..b6e234c
--- /dev/null
+++ b/tests/kms_pipe_b_c_ivb.c
@@ -0,0 +1,289 @@
+/*
+ * 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.olive...@intel.com>
+ */
+
+#include "drmtest.h"
+#include "igt_kms.h"
+#include "intel_chipset.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(fb_id >= 0);
+
+ 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)
+{
+ int count = 0;
+ igt_output_t *output;
+
+ *output1 = NULL;
+ *output2 = NULL;
+
+ for_each_connected_output(&data->display, output) {
+ if (!(*output1))
+ *output1 = output;
+ else if (!(*output2))
+ *output2 = output;
+
+ igt_output_set_pipe(output, PIPE_ANY);
+ count++;
+ }
+
+ igt_skip_on_f(count < 2, "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(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(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(ret == 0);
+
+ ret = set_normal_mode_on_pipe(data, PIPE_B, output1);
+ igt_assert(ret == 0);
+
+ ret = set_normal_mode_on_pipe(data, PIPE_C, output2);
+ igt_assert(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(ret == 0);
+
+ ret = disable_pipe(data, PIPE_B, output1);
+ igt_assert(ret == 0);
+
+ ret = set_normal_mode_on_pipe(data, PIPE_C, output2);
+ igt_assert(ret == 0);
+
+ ret = set_normal_mode_on_pipe(data, PIPE_B, output1);
+ igt_assert(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(ret == 0);
+
+ ret = disable_pipe(data, PIPE_C, output2);
+ igt_assert(ret == 0);
+
+ ret = set_big_mode_on_pipe(data, PIPE_B, output1);
+ igt_assert(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(ret == 0);
+
+ ret = set_normal_mode_on_pipe(data, PIPE_C, output2);
+ igt_assert(ret != 0);
+}
+
+static data_t data;
+igt_main
+{
+ int devid;
+
+ igt_skip_on_simulation();
+
+ igt_fixture {
+ data.drm_fd = drm_open_any_master();
+ devid = intel_get_drm_devid(data.drm_fd);
+ igt_skip_on(!IS_IVYBRIDGE(devid));
+
+ kmstest_set_vt_graphics_mode();
+ igt_display_init(&data.display, data.drm_fd);
+ }
+
+ igt_subtest("pipe-B-dpms-off-modeset-pipe-C")
+ test_dpms(&data);
+
+ igt_subtest("pipe-B-double-modeset-then-modeset-pipe-C")
+ test_lane_reduction(&data);
+
+ igt_subtest("disable-pipe-B-enable-pipe-C")
+ test_disable_pipe_B(&data);
+
+ igt_subtest("from-pipe-C-to-B-with-3-lanes")
+ test_from_C_to_B_with_3_lanes(&data);
+
+ 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);
+ }
+}
--
2.1.0
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