tests: Rename kms_chv_cursor_fail to kms_cursor_edge_walk

It's a generic testcase, originally for a chv issue, but we can hit
legit bugs with this on any platforms. And we do, which then results
in confused managers.

Let's rename for clarity.

Cc: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Cc: "Peres, Martin" <martin.peres@intel.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Acked-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Acked-by: "Peres, Martin" <martin.peres@intel.com>
Acked-by: James Ausmus <james.ausmus@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

1 files changed, 375 insertions, 0 deletions

diff --git a/tests/kms_cursor_edge_walk.c b/tests/kms_cursor_edge_walk.c
new file mode 100644
index 00000000..86629555
--- /dev/null
+++ b/tests/kms_cursor_edge_walk.c
@@ -0,0 +1,375 @@
+/*
+ * 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.
+ *
+ */
+
+#include "igt.h"
+#include <errno.h>
+#include <limits.h>
+#include <stdbool.h>
+#include <stdio.h>
+#include <string.h>
+
+IGT_TEST_DESCRIPTION("Exercise CHV pipe C cursor fail");
+
+#ifndef DRM_CAP_CURSOR_WIDTH
+#define DRM_CAP_CURSOR_WIDTH 0x8
+#endif
+#ifndef DRM_CAP_CURSOR_HEIGHT
+#define DRM_CAP_CURSOR_HEIGHT 0x9
+#endif
+
+typedef struct {
+	int drm_fd;
+	igt_display_t display;
+	struct igt_fb primary_fb;
+	struct igt_fb fb;
+	igt_output_t *output;
+	enum pipe pipe;
+	igt_crc_t ref_crc;
+	int curw, curh; /* cursor size */
+	igt_pipe_crc_t *pipe_crc;
+	uint32_t devid;
+	bool colored, jump, disable;
+	int jump_x, jump_y;
+} data_t;
+
+enum {
+	EDGE_LEFT = 0x1,
+	EDGE_RIGHT = 0x2,
+	EDGE_TOP = 0x4,
+	EDGE_BOTTOM = 0x8,
+};
+
+static void create_cursor_fb(data_t *data, int cur_w, int cur_h)
+{
+	cairo_t *cr;
+	uint32_t fb_id;
+
+	fb_id = igt_create_fb(data->drm_fd, cur_w, cur_h,
+			      DRM_FORMAT_ARGB8888,
+			      LOCAL_DRM_FORMAT_MOD_NONE,
+			      &data->fb);
+	igt_assert(fb_id);
+
+	cr = igt_get_cairo_ctx(data->drm_fd, &data->fb);
+	if (data->colored)
+		igt_paint_color_alpha(cr, 0, 0, data->fb.width, data->fb.height,
+				      1.0, 0.0, 0.0, 1.0);
+	else
+		igt_paint_color_alpha(cr, 0, 0, data->fb.width, data->fb.height,
+				      0.0, 0.0, 0.0, 0.0);
+	igt_put_cairo_ctx(data->drm_fd, &data->fb, cr);
+}
+
+static void cursor_move(data_t *data, int x, int y, int i)
+{
+	int crtc_id = data->output->config.crtc->crtc_id;
+
+	igt_debug("[%d] x=%d, y=%d\n", i, x, y);
+
+	/*
+	 * The "fixed" kernel will refuse the ioctl when pipe C cursor
+	 * would straddle the left screen edge (which is when the hw
+	 * fails). So let's accept a failure from the ioctl in that case.
+	 */
+	igt_assert(drmModeMoveCursor(data->drm_fd, crtc_id, x, y) == 0 ||
+		   (IS_CHERRYVIEW(data->devid) && data->pipe == PIPE_C &&
+		    x < 0 && x > -data->curw));
+	igt_wait_for_vblank(data->drm_fd, data->pipe);
+}
+
+#define XSTEP 8
+#define YSTEP 8
+#define NCRC 128
+
+static void test_edge_pos(data_t *data, int sx, int ex, int y, bool swap_axis)
+{
+	igt_crc_t *crc = NULL;
+	int i, n, x, xdir, dx;
+
+	if (sx > ex)
+		xdir = -1;
+	else
+		xdir = 1;
+
+	dx = (ex - sx)/XSTEP;
+
+	igt_pipe_crc_drain(data->pipe_crc);
+
+	i = 0;
+
+	for (x = sx; xdir * (x - ex) <= 0; x += dx) {
+		int xx, yy;
+
+		if (swap_axis) {
+			xx = y;
+			yy = x;
+		} else {
+			xx = x;
+			yy = y;
+		}
+
+		if (data->jump) {
+			cursor_move(data, data->jump_x, data->jump_y, i++);
+		}
+		if (data->disable) {
+			cursor_move(data, -data->curw, -data->curh, i++);
+		}
+		cursor_move(data, xx, yy, i++);
+		if (data->jump) {
+			cursor_move(data, data->jump_x, data->jump_y, i++);
+		}
+		if (data->disable) {
+			cursor_move(data, -data->curw, -data->curh, i++);
+		}
+	}
+
+	n = igt_pipe_crc_get_crcs(data->pipe_crc, NCRC, &crc);
+
+	if (!data->colored) {
+		igt_debug("Checking CRCs: ");
+		for (i = 0; i < n; i++) {
+			igt_debug("[%d] ", i);
+			igt_assert_crc_equal(&data->ref_crc, &crc[i]);
+		}
+		igt_debug("\n");
+	}
+}
+
+static void test_edge(data_t *data, int sy, int ey, int sx, int ex, bool swap_axis)
+{
+	int crtc_id = data->output->config.crtc->crtc_id;
+	int y, ydir, dy;
+
+	if (sy > ey)
+		ydir = -1;
+	else
+		ydir = 1;
+
+	dy = (ey - sy) / YSTEP;
+
+	igt_assert_eq(drmModeMoveCursor(data->drm_fd, crtc_id, -data->curw, -data->curh), 0);
+	igt_assert_eq(drmModeSetCursor(data->drm_fd, crtc_id, data->fb.gem_handle, data->curw, data->curh), 0);
+
+	for (y = sy; ydir * (y - ey) <= 0; ) {
+		test_edge_pos(data, sx, ex, y, swap_axis);
+		y += dy;
+		test_edge_pos(data, ex, sx, y, swap_axis);
+		y += dy;
+	}
+
+	igt_assert_eq(drmModeMoveCursor(data->drm_fd, crtc_id, -data->curw, -data->curh), 0);
+	igt_assert_eq(drmModeSetCursor(data->drm_fd, crtc_id, 0, data->curw, data->curh), 0);
+}
+
+static void test_edges(data_t *data, unsigned int edges)
+{
+	drmModeModeInfo *mode = igt_output_get_mode(data->output);
+
+	if (edges & EDGE_LEFT) {
+		test_edge(data, mode->vdisplay, -data->curh,
+			  -data->curw, 0, false);
+		test_edge(data, -data->curh, mode->vdisplay,
+			  -data->curw, 0, false);
+	}
+
+	if (edges & EDGE_RIGHT) {
+		test_edge(data, mode->vdisplay, -data->curh,
+			  mode->hdisplay - data->curw, mode->hdisplay, false);
+		test_edge(data, -data->curh, mode->vdisplay,
+			  mode->hdisplay - data->curw, mode->hdisplay, false);
+	}
+
+	if (edges & EDGE_TOP) {
+		test_edge(data, mode->hdisplay, -data->curw,
+			  -data->curh, 0, true);
+		test_edge(data, -data->curw, mode->hdisplay,
+			  -data->curh, 0, true);
+	}
+
+	if (edges & EDGE_BOTTOM) {
+		test_edge(data, mode->hdisplay, -data->curw,
+			  mode->vdisplay - data->curh, mode->vdisplay, true);
+		test_edge(data, -data->curw, mode->hdisplay,
+			  mode->vdisplay - data->curh, mode->vdisplay, true);
+	}
+}
+
+static void cleanup_crtc(data_t *data)
+{
+	igt_display_t *display = &data->display;
+
+	igt_display_reset(display);
+	igt_pipe_crc_free(data->pipe_crc);
+	data->pipe_crc = NULL;
+
+	igt_remove_fb(data->drm_fd, &data->primary_fb);
+	igt_remove_fb(data->drm_fd, &data->fb);
+}
+
+static void prepare_crtc(data_t *data)
+{
+	drmModeModeInfo *mode;
+	igt_display_t *display = &data->display;
+	igt_plane_t *primary;
+
+	cleanup_crtc(data);
+
+	/* select the pipe we want to use */
+	igt_output_set_pipe(data->output, data->pipe);
+
+	mode = igt_output_get_mode(data->output);
+	igt_create_pattern_fb(data->drm_fd, mode->hdisplay, mode->vdisplay,
+			      DRM_FORMAT_XRGB8888,
+			      LOCAL_DRM_FORMAT_MOD_NONE,
+			      &data->primary_fb);
+
+	primary = igt_output_get_plane_type(data->output, DRM_PLANE_TYPE_PRIMARY);
+	igt_plane_set_fb(primary, &data->primary_fb);
+
+	igt_display_commit2(display, display->is_atomic ? COMMIT_ATOMIC : COMMIT_LEGACY);
+
+	data->jump_x = (mode->hdisplay - data->curw) / 2;
+	data->jump_y = (mode->vdisplay - data->curh) / 2;
+
+	/* create the pipe_crc object for this pipe */
+	data->pipe_crc = igt_pipe_crc_new_nonblock(data->drm_fd, data->pipe,
+						   INTEL_PIPE_CRC_SOURCE_AUTO);
+
+	/* get reference crc w/o cursor */
+	igt_pipe_crc_start(data->pipe_crc);
+	igt_pipe_crc_get_single(data->pipe_crc, &data->ref_crc);
+}
+
+static void test_crtc(data_t *data, unsigned int edges)
+{
+	prepare_crtc(data);
+
+	create_cursor_fb(data, data->curw, data->curh);
+
+	test_edges(data, edges);
+}
+
+static int opt_handler(int opt, int opt_index, void *_data)
+{
+	data_t *data = _data;
+
+	switch (opt) {
+	case 'c':
+		data->colored = true;
+		break;
+	case 'd':
+		data->disable = true;
+		break;
+	case 'j':
+		data->jump = true;
+		break;
+	default:
+		break;
+	}
+
+	return 0;
+}
+
+static data_t data;
+static uint64_t max_curw = 64, max_curh = 64;
+
+int main(int argc, char **argv)
+{
+	static const struct option long_opts[] = {
+                { .name = "colored", .val = 'c' },
+                { .name = "disable", .val = 'd'},
+                { .name = "jump", .val = 'j' },
+                {}
+        };
+        static const char *help_str =
+		"  --colored\t\tUse a colored cursor (disables CRC checks)\n"
+		"  --disable\t\tDisable the cursor between each step\n"
+		"  --jump\t\tJump the cursor to middle of the screen between each step)\n";
+
+	igt_subtest_init_parse_opts(&argc, argv, "", long_opts, help_str,
+                                    opt_handler, &data);
+
+	igt_skip_on_simulation();
+
+	igt_fixture {
+		int ret;
+
+		data.drm_fd = drm_open_driver_master(DRIVER_INTEL);
+
+		data.devid = intel_get_drm_devid(data.drm_fd);
+
+		ret = drmGetCap(data.drm_fd, DRM_CAP_CURSOR_WIDTH, &max_curw);
+		igt_assert(ret == 0 || errno == EINVAL);
+		/* Not making use of cursor_height since it is same as width, still reading */
+		ret = drmGetCap(data.drm_fd, DRM_CAP_CURSOR_HEIGHT, &max_curh);
+		igt_assert(ret == 0 || errno == EINVAL);
+
+		kmstest_set_vt_graphics_mode();
+
+		igt_require_pipe_crc(data.drm_fd);
+
+		igt_display_require(&data.display, data.drm_fd);
+	}
+
+	for_each_pipe_static(data.pipe) {
+		igt_subtest_group {
+			igt_fixture {
+				igt_display_require_output_on_pipe(&data.display, data.pipe);
+				data.output = igt_get_single_output_for_pipe(&data.display, data.pipe);
+			}
+
+			for (data.curw = 64; data.curw <= 256; data.curw *= 2) {
+				data.curh = data.curw;
+
+				igt_fixture
+					igt_require(data.curw <= max_curw && data.curh <= max_curh);
+
+				igt_subtest_f("pipe-%s-%dx%d-left-edge",
+					kmstest_pipe_name(data.pipe),
+					data.curw, data.curh)
+					test_crtc(&data, EDGE_LEFT);
+
+				igt_subtest_f("pipe-%s-%dx%d-right-edge",
+					kmstest_pipe_name(data.pipe),
+					data.curw, data.curh)
+					test_crtc(&data, EDGE_RIGHT);
+
+				igt_subtest_f("pipe-%s-%dx%d-top-edge",
+					kmstest_pipe_name(data.pipe),
+					data.curw, data.curh)
+					test_crtc(&data, EDGE_TOP);
+
+				igt_subtest_f("pipe-%s-%dx%d-bottom-edge",
+					kmstest_pipe_name(data.pipe),
+					data.curw, data.curh)
+					test_crtc(&data, EDGE_BOTTOM);
+			}
+		}
+	}
+
+	igt_fixture
+		igt_display_fini(&data.display);
+
+	igt_exit();
+}