Merge tag 'drm-misc-next-2023-05-11' of git://anongit.freedesktop.org/drm/drm-misc into drm-next

drm-misc-next for 6.5:

UAPI Changes:

Cross-subsystem Changes:
 - arch: Consolidate <asm/fb.h>

Core Changes:
 - aperture: Ignore firmware framebuffers with non-primary devices
 - fbdev: Use fbdev's I/O helpers
 - sysfs: Expose DRM connector ID
 - tests: More tests for drm_rect

Driver Changes:
 - armada: Implement fbdev emulation as a client
 - bridge:
   - fsl-ldb: Support i.MX6SX
   - lt9211: Remove blanking packets
   - lt9611: Remove blanking packets
   - tc358768: Implement input bus formats reporting, fix various
     timings and clocks settings
   - ti-sn65dsi86: Implement wait_hpd_asserted
 - nouveau: Improve NULL pointer checks before dereference
 - panel:
   - nt36523: Support Lenovo J606F
   - st7703: Support Anbernic RG353V-V2
   - new panels: InnoLux G070ACE-L01
 - sun4i: Fix MIPI-DSI dotclock
 - vc4: RGB Range toggle property, BT601 and BT2020 support for HDMI
 - vkms: Convert to drmm helpers, Add reflection and rotation support

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/2pxmxdzsk2ekjy6xvbpj67zrhtwvkkhfspuvdm5pfm5i54hed6@sooct7yq6z4w

1 files changed, 315 insertions, 0 deletions

diff --git a/drivers/gpu/drm/tests/drm_rect_test.c b/drivers/gpu/drm/tests/drm_rect_test.c
index e9809ea32696..76332cd2ead8 100644
--- a/drivers/gpu/drm/tests/drm_rect_test.c
+++ b/drivers/gpu/drm/tests/drm_rect_test.c
@@ -8,6 +8,19 @@
 #include <kunit/test.h>
 
 #include <drm/drm_rect.h>
+#include <drm/drm_mode.h>
+
+#include <linux/string_helpers.h>
+#include <linux/errno.h>
+
+static void drm_rect_compare(struct kunit *test, const struct drm_rect *r,
+			     const struct drm_rect *expected)
+{
+	KUNIT_EXPECT_EQ(test, r->x1, expected->x1);
+	KUNIT_EXPECT_EQ(test, r->y1, expected->y1);
+	KUNIT_EXPECT_EQ(test, drm_rect_width(r), drm_rect_width(expected));
+	KUNIT_EXPECT_EQ(test, drm_rect_height(r), drm_rect_height(expected));
+}
 
 static void drm_test_rect_clip_scaled_div_by_zero(struct kunit *test)
 {
@@ -196,11 +209,313 @@ static void drm_test_rect_clip_scaled_signed_vs_unsigned(struct kunit *test)
 	KUNIT_EXPECT_FALSE_MSG(test, drm_rect_visible(&src), "Source should not be visible\n");
 }
 
+struct drm_rect_intersect_case {
+	const char *description;
+	struct drm_rect r1, r2;
+	bool should_be_visible;
+	struct drm_rect expected_intersection;
+};
+
+static const struct drm_rect_intersect_case drm_rect_intersect_cases[] = {
+	{
+		.description = "top-left x bottom-right",
+		.r1 = DRM_RECT_INIT(1, 1, 2, 2),
+		.r2 = DRM_RECT_INIT(0, 0, 2, 2),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(1, 1, 1, 1),
+	},
+	{
+		.description = "top-right x bottom-left",
+		.r1 = DRM_RECT_INIT(0, 0, 2, 2),
+		.r2 = DRM_RECT_INIT(1, -1, 2, 2),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(1, 0, 1, 1),
+	},
+	{
+		.description = "bottom-left x top-right",
+		.r1 = DRM_RECT_INIT(1, -1, 2, 2),
+		.r2 = DRM_RECT_INIT(0, 0, 2, 2),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(1, 0, 1, 1),
+	},
+	{
+		.description = "bottom-right x top-left",
+		.r1 = DRM_RECT_INIT(0, 0, 2, 2),
+		.r2 = DRM_RECT_INIT(1, 1, 2, 2),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(1, 1, 1, 1),
+	},
+	{
+		.description = "right x left",
+		.r1 = DRM_RECT_INIT(0, 0, 2, 1),
+		.r2 = DRM_RECT_INIT(1, 0, 3, 1),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(1, 0, 1, 1),
+	},
+	{
+		.description = "left x right",
+		.r1 = DRM_RECT_INIT(1, 0, 3, 1),
+		.r2 = DRM_RECT_INIT(0, 0, 2, 1),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(1, 0, 1, 1),
+	},
+	{
+		.description = "up x bottom",
+		.r1 = DRM_RECT_INIT(0, 0, 1, 2),
+		.r2 = DRM_RECT_INIT(0, -1, 1, 3),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(0, 0, 1, 2),
+	},
+	{
+		.description = "bottom x up",
+		.r1 = DRM_RECT_INIT(0, -1, 1, 3),
+		.r2 = DRM_RECT_INIT(0, 0, 1, 2),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(0, 0, 1, 2),
+	},
+	{
+		.description = "touching corner",
+		.r1 = DRM_RECT_INIT(0, 0, 1, 1),
+		.r2 = DRM_RECT_INIT(1, 1, 2, 2),
+		.should_be_visible = false,
+		.expected_intersection = DRM_RECT_INIT(1, 1, 0, 0),
+	},
+	{
+		.description = "touching side",
+		.r1 = DRM_RECT_INIT(0, 0, 1, 1),
+		.r2 = DRM_RECT_INIT(1, 0, 1, 1),
+		.should_be_visible = false,
+		.expected_intersection = DRM_RECT_INIT(1, 0, 0, 1),
+	},
+	{
+		.description = "equal rects",
+		.r1 = DRM_RECT_INIT(0, 0, 2, 2),
+		.r2 = DRM_RECT_INIT(0, 0, 2, 2),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(0, 0, 2, 2),
+	},
+	{
+		.description = "inside another",
+		.r1 = DRM_RECT_INIT(0, 0, 2, 2),
+		.r2 = DRM_RECT_INIT(1, 1, 1, 1),
+		.should_be_visible = true,
+		.expected_intersection = DRM_RECT_INIT(1, 1, 1, 1),
+	},
+	{
+		.description = "far away",
+		.r1 = DRM_RECT_INIT(0, 0, 1, 1),
+		.r2 = DRM_RECT_INIT(3, 6, 1, 1),
+		.should_be_visible = false,
+		.expected_intersection = DRM_RECT_INIT(3, 6, -2, -5),
+	},
+	{
+		.description = "points intersecting",
+		.r1 = DRM_RECT_INIT(5, 10, 0, 0),
+		.r2 = DRM_RECT_INIT(5, 10, 0, 0),
+		.should_be_visible = false,
+		.expected_intersection = DRM_RECT_INIT(5, 10, 0, 0),
+	},
+	{
+		.description = "points not intersecting",
+		.r1 = DRM_RECT_INIT(0, 0, 0, 0),
+		.r2 = DRM_RECT_INIT(5, 10, 0, 0),
+		.should_be_visible = false,
+		.expected_intersection = DRM_RECT_INIT(5, 10, -5, -10),
+	},
+};
+
+static void drm_rect_intersect_case_desc(const struct drm_rect_intersect_case *t, char *desc)
+{
+	snprintf(desc, KUNIT_PARAM_DESC_SIZE,
+		 "%s: " DRM_RECT_FMT " x " DRM_RECT_FMT,
+		 t->description, DRM_RECT_ARG(&t->r1), DRM_RECT_ARG(&t->r2));
+}
+
+KUNIT_ARRAY_PARAM(drm_rect_intersect, drm_rect_intersect_cases, drm_rect_intersect_case_desc);
+
+static void drm_test_rect_intersect(struct kunit *test)
+{
+	const struct drm_rect_intersect_case *params = test->param_value;
+	struct drm_rect r1_aux = params->r1;
+	bool visible;
+
+	visible = drm_rect_intersect(&r1_aux, &params->r2);
+
+	KUNIT_EXPECT_EQ(test, visible, params->should_be_visible);
+	drm_rect_compare(test, &r1_aux, &params->expected_intersection);
+}
+
+struct drm_rect_scale_case {
+	const char *name;
+	struct drm_rect src, dst;
+	int min_range, max_range;
+	int expected_scaling_factor;
+};
+
+static const struct drm_rect_scale_case drm_rect_scale_cases[] = {
+	{
+		.name = "normal use",
+		.src = DRM_RECT_INIT(0, 0, 2 << 16, 2 << 16),
+		.dst = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16),
+		.min_range = 0, .max_range = INT_MAX,
+		.expected_scaling_factor = 2,
+	},
+	{
+		.name = "out of max range",
+		.src = DRM_RECT_INIT(0, 0, 10 << 16, 10 << 16),
+		.dst = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16),
+		.min_range = 3, .max_range = 5,
+		.expected_scaling_factor = -ERANGE,
+	},
+	{
+		.name = "out of min range",
+		.src = DRM_RECT_INIT(0, 0, 2 << 16, 2 << 16),
+		.dst = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16),
+		.min_range = 3, .max_range = 5,
+		.expected_scaling_factor = -ERANGE,
+	},
+	{
+		.name = "zero dst",
+		.src = DRM_RECT_INIT(0, 0, 2 << 16, 2 << 16),
+		.dst = DRM_RECT_INIT(0, 0, 0 << 16, 0 << 16),
+		.min_range = 0, .max_range = INT_MAX,
+		.expected_scaling_factor = 0,
+	},
+	{
+		.name = "negative src",
+		.src = DRM_RECT_INIT(0, 0, -(1 << 16), -(1 << 16)),
+		.dst = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16),
+		.min_range = 0, .max_range = INT_MAX,
+		.expected_scaling_factor = -EINVAL,
+	},
+	{
+		.name = "negative dst",
+		.src = DRM_RECT_INIT(0, 0, 1 << 16, 1 << 16),
+		.dst = DRM_RECT_INIT(0, 0, -(1 << 16), -(1 << 16)),
+		.min_range = 0, .max_range = INT_MAX,
+		.expected_scaling_factor = -EINVAL,
+	},
+};
+
+static void drm_rect_scale_case_desc(const struct drm_rect_scale_case *t, char *desc)
+{
+	strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE);
+}
+
+KUNIT_ARRAY_PARAM(drm_rect_scale, drm_rect_scale_cases, drm_rect_scale_case_desc);
+
+static void drm_test_rect_calc_hscale(struct kunit *test)
+{
+	const struct drm_rect_scale_case *params = test->param_value;
+	int scaling_factor;
+
+	scaling_factor = drm_rect_calc_hscale(&params->src, &params->dst,
+					      params->min_range, params->max_range);
+
+	KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor);
+}
+
+static void drm_test_rect_calc_vscale(struct kunit *test)
+{
+	const struct drm_rect_scale_case *params = test->param_value;
+	int scaling_factor;
+
+	scaling_factor = drm_rect_calc_vscale(&params->src, &params->dst,
+					      params->min_range, params->max_range);
+
+	KUNIT_EXPECT_EQ(test, scaling_factor, params->expected_scaling_factor);
+}
+
+struct drm_rect_rotate_case {
+	const char *name;
+	unsigned int rotation;
+	struct drm_rect rect;
+	int width, height;
+	struct drm_rect expected;
+};
+
+static const struct drm_rect_rotate_case drm_rect_rotate_cases[] = {
+	{
+		.name = "reflect-x",
+		.rotation = DRM_MODE_REFLECT_X,
+		.rect = DRM_RECT_INIT(0, 0, 5, 5),
+		.width = 5, .height = 10,
+		.expected = DRM_RECT_INIT(0, 0, 5, 5),
+	},
+	{
+		.name = "reflect-y",
+		.rotation = DRM_MODE_REFLECT_Y,
+		.rect = DRM_RECT_INIT(2, 0, 5, 5),
+		.width = 5, .height = 10,
+		.expected = DRM_RECT_INIT(2, 5, 5, 5),
+	},
+	{
+		.name = "rotate-0",
+		.rotation = DRM_MODE_ROTATE_0,
+		.rect = DRM_RECT_INIT(0, 2, 5, 5),
+		.width = 5, .height = 10,
+		.expected = DRM_RECT_INIT(0, 2, 5, 5),
+	},
+	{
+		.name = "rotate-90",
+		.rotation = DRM_MODE_ROTATE_90,
+		.rect = DRM_RECT_INIT(0, 0, 5, 10),
+		.width = 5, .height = 10,
+		.expected = DRM_RECT_INIT(0, 0, 10, 5),
+	},
+	{
+		.name = "rotate-180",
+		.rotation = DRM_MODE_ROTATE_180,
+		.rect = DRM_RECT_INIT(11, 3, 5, 10),
+		.width = 5, .height = 10,
+		.expected = DRM_RECT_INIT(-11, -3, 5, 10),
+	},
+	{
+		.name = "rotate-270",
+		.rotation = DRM_MODE_ROTATE_270,
+		.rect = DRM_RECT_INIT(6, 3, 5, 10),
+		.width = 5, .height = 10,
+		.expected = DRM_RECT_INIT(-3, 6, 10, 5),
+	},
+};
+
+static void drm_rect_rotate_case_desc(const struct drm_rect_rotate_case *t, char *desc)
+{
+	strscpy(desc, t->name, KUNIT_PARAM_DESC_SIZE);
+}
+
+KUNIT_ARRAY_PARAM(drm_rect_rotate, drm_rect_rotate_cases, drm_rect_rotate_case_desc);
+
+static void drm_test_rect_rotate(struct kunit *test)
+{
+	const struct drm_rect_rotate_case *params = test->param_value;
+	struct drm_rect r = params->rect;
+
+	drm_rect_rotate(&r, params->width, params->height, params->rotation);
+
+	drm_rect_compare(test, &r, &params->expected);
+}
+
+static void drm_test_rect_rotate_inv(struct kunit *test)
+{
+	const struct drm_rect_rotate_case *params = test->param_value;
+	struct drm_rect r = params->expected;
+
+	drm_rect_rotate_inv(&r, params->width, params->height, params->rotation);
+
+	drm_rect_compare(test, &r, &params->rect);
+}
+
 static struct kunit_case drm_rect_tests[] = {
 	KUNIT_CASE(drm_test_rect_clip_scaled_div_by_zero),
 	KUNIT_CASE(drm_test_rect_clip_scaled_not_clipped),
 	KUNIT_CASE(drm_test_rect_clip_scaled_clipped),
 	KUNIT_CASE(drm_test_rect_clip_scaled_signed_vs_unsigned),
+	KUNIT_CASE_PARAM(drm_test_rect_intersect, drm_rect_intersect_gen_params),
+	KUNIT_CASE_PARAM(drm_test_rect_calc_hscale, drm_rect_scale_gen_params),
+	KUNIT_CASE_PARAM(drm_test_rect_calc_vscale, drm_rect_scale_gen_params),
+	KUNIT_CASE_PARAM(drm_test_rect_rotate, drm_rect_rotate_gen_params),
+	KUNIT_CASE_PARAM(drm_test_rect_rotate_inv, drm_rect_rotate_gen_params),
 	{ }
 };