Selftest for drm damage helper iterator functions.
Cc: ville.syrjala@xxxxxxxxxxxxxxx
Cc: Daniel Vetter <daniel.vetter@xxxxxxxx>
Cc: Pekka Paalanen <ppaalanen@xxxxxxxxx>
Cc: Daniel Stone <daniel@xxxxxxxxxxxxx>
Cc: intel-gfx@xxxxxxxxxxxxxxxxxxxxx
Cc: igt-dev@xxxxxxxxxxxxxxxxxxxxx
Cc: petri.latvala@xxxxxxxxx
Cc: chris@xxxxxxxxxxxxxxxxxx
Signed-off-by: Deepak Rawat <drawat@xxxxxxxxxx>
---
drivers/gpu/drm/selftests/Makefile | 3 +-
.../selftests/drm_damage_helper_selftests.h | 22 +
.../drm/selftests/test-drm_damage_helper.c | 844 ++++++++++++++++++
3 files changed, 868 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/selftests/drm_damage_helper_selftests.h
create mode 100644 drivers/gpu/drm/selftests/test-drm_damage_helper.c
diff --git a/drivers/gpu/drm/selftests/Makefile b/drivers/gpu/drm/selftests/Makefile
index 9fc349fa18e9..88ac216f5962 100644
--- a/drivers/gpu/drm/selftests/Makefile
+++ b/drivers/gpu/drm/selftests/Makefile
@@ -1 +1,2 @@
-obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm-helper.o
+obj-$(CONFIG_DRM_DEBUG_SELFTEST) += test-drm_mm.o test-drm-helper.o \
+ test-drm_damage_helper.o
diff --git a/drivers/gpu/drm/selftests/drm_damage_helper_selftests.h b/drivers/gpu/drm/selftests/drm_damage_helper_selftests.h
new file mode 100644
index 000000000000..3a1cbe05bef0
--- /dev/null
+++ b/drivers/gpu/drm/selftests/drm_damage_helper_selftests.h
@@ -0,0 +1,22 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+selftest(damage_iter_no_damage, igt_damage_iter_no_damage)
+selftest(damage_iter_no_damage_fractional_src, igt_damage_iter_no_damage_fractional_src)
+selftest(damage_iter_no_damage_src_moved, igt_damage_iter_no_damage_src_moved)
+selftest(damage_iter_no_damage_fractional_src_moved, igt_damage_iter_no_damage_fractional_src_moved)
+selftest(damage_iter_no_damage_not_visible, igt_damage_iter_no_damage_not_visible)
+selftest(damage_iter_no_damage_no_crtc, igt_damage_iter_no_damage_no_crtc)
+selftest(damage_iter_no_damage_no_fb, igt_damage_iter_no_damage_no_fb)
+selftest(damage_iter_simple_damage, igt_damage_iter_simple_damage)
+selftest(damage_iter_single_damage, igt_damage_iter_single_damage)
+selftest(damage_iter_single_damage_intersect_src, igt_damage_iter_single_damage_intersect_src)
+selftest(damage_iter_single_damage_outside_src, igt_damage_iter_single_damage_outside_src)
+selftest(damage_iter_single_damage_fractional_src, igt_damage_iter_single_damage_fractional_src)
+selftest(damage_iter_single_damage_intersect_fractional_src, igt_damage_iter_single_damage_intersect_fractional_src)
+selftest(damage_iter_single_damage_outside_fractional_src, igt_damage_iter_single_damage_outside_fractional_src)
+selftest(damage_iter_single_damage_src_moved, igt_damage_iter_single_damage_src_moved)
+selftest(damage_iter_single_damage_fractional_src_moved, igt_damage_iter_single_damage_fractional_src_moved)
+selftest(damage_iter_damage, igt_damage_iter_damage)
+selftest(damage_iter_damage_one_intersect, igt_damage_iter_damage_one_intersect)
+selftest(damage_iter_damage_one_outside, igt_damage_iter_damage_one_outside)
+selftest(damage_iter_damage_src_moved, igt_damage_iter_damage_src_moved)
+selftest(damage_iter_damage_not_visible, igt_damage_iter_damage_not_visible)
diff --git a/drivers/gpu/drm/selftests/test-drm_damage_helper.c b/drivers/gpu/drm/selftests/test-drm_damage_helper.c
new file mode 100644
index 000000000000..17754734c47a
--- /dev/null
+++ b/drivers/gpu/drm/selftests/test-drm_damage_helper.c
@@ -0,0 +1,844 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * Test case for drm_damage_helper functions
+ */
+
+#define pr_fmt(fmt) "drm_damage_helper: " fmt
+
+#include <linux/module.h>
+#include <drm/drm_damage_helper.h>
+
+#define TESTS "drm_damage_helper_selftests.h"
+#include "drm_selftest.h"
+
+#define FAIL(test, msg, ...) \
+ do { \
+ if (test) { \
+ pr_err("%s/%u: " msg, __FUNCTION__, __LINE__, ##__VA_ARGS__); \
+ return -EINVAL; \
+ } \
+ } while (0)
+
+#define FAIL_ON(x) FAIL((x), "%s", "FAIL_ON(" __stringify(x) ")\n")
+
+static void set_plane_src(struct drm_plane_state *state, int x1, int y1, int x2,
+ int y2)
+{
+ state->src.x1 = x1;
+ state->src.y1 = y1;
+ state->src.x2 = x2;
+ state->src.y2 = y2;
+}
+
+static void set_damage_clip(struct drm_mode_rect *r, int x1, int y1, int x2,
+ int y2)
+{
+ r->x1 = x1;
+ r->y1 = y1;
+ r->x2 = x2;
+ r->y2 = y2;
+}
+
+static void set_damage_blob(struct drm_property_blob *damage_blob,
+ struct drm_mode_rect *r, uint32_t size)
+{
+ damage_blob->length = size;
+ damage_blob->data = r;
+}
+
+static void set_plane_damage(struct drm_plane_state *state,
+ struct drm_property_blob *damage_blob)
+{
+ state->fb_damage_clips = damage_blob;
+}
+
+static bool check_damage_clip(struct drm_plane_state *state, struct drm_rect *r,
+ int x1, int y1, int x2, int y2)
+{
+ /*
+ * Round down x1/y1 and round up x2/y2. This is because damage is not in
+ * 16.16 fixed point so to catch all pixels.
+ */
+ int src_x1 = state->src.x1 >> 16;
+ int src_y1 = state->src.y1 >> 16;
+ int src_x2 = (state->src.x2 >> 16) + !!(state->src.x2 & 0xFFFF);
+ int src_y2 = (state->src.y2 >> 16) + !!(state->src.y2 & 0xFFFF);
+
+ if (x1 >= x2 || y1 >= y2) {
+ pr_err("Cannot have damage clip with no dimention.\n");
+ return false;
+ }
+
+ if (x1 < src_x1 || y1 < src_y1 || x2 > src_x2 || y2 > src_y2) {
+ pr_err("Damage cannot be outside rounded plane src.\n");
+ return false;
+ }
+
+ if (r->x1 != x1 || r->y1 != y1 || r->x2 != x2 || r->y2 != y2) {
+ pr_err("Damage = %d %d %d %d\n", r->x1, r->y1, r->x2, r->y2);
+ return false;
+ }
+
+ return true;
+}
+
+static int igt_damage_iter_no_damage(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src same as fb size. */
+ set_plane_src(&old_state, 0, 0, fb.width << 16, fb.height << 16);
+ set_plane_src(&state, 0, 0, fb.width << 16, fb.height << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return plane src as damage.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 0, 0, 2048, 2048));
+
+ return 0;
+}
+
+static int igt_damage_iter_no_damage_fractional_src(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src has fractional part. */
+ set_plane_src(&old_state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ set_plane_src(&state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return rounded off plane src as damage.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 3, 3, 1028, 772));
+
+ return 0;
+}
+
+static int igt_damage_iter_no_damage_src_moved(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src moved since old plane state. */
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 10 << 16, 10 << 16,
+ (10 + 1024) << 16, (10 + 768) << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return plane src as damage.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 10, 10, 1034, 778));
+
+ return 0;
+}
+
+static int igt_damage_iter_no_damage_fractional_src_moved(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src has fractional part and it moved since old plane state. */
+ set_plane_src(&old_state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ set_plane_src(&state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return plane src as damage.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 4, 4, 1029, 773));
+
+ return 0;
+}
+
+static int igt_damage_iter_no_damage_not_visible(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = false,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 0, "Should have no damage.");
+
+ return 0;
+}
+
+static int igt_damage_iter_no_damage_no_crtc(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = 0,
+ .fb = &fb,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 0, "Should have no damage.");
+
+ return 0;
+}
+
+static int igt_damage_iter_no_damage_no_fb(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = 0,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 0, "Should have no damage.");
+
+ return 0;
+}
+
+static int igt_damage_iter_simple_damage(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ /* Damage set to plane src */
+ set_damage_clip(&damage, 0, 0, 1024, 768);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return damage when set.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 0, 0, 1024, 768));
+
+ return 0;
+}
+
+static int igt_damage_iter_single_damage(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ set_damage_clip(&damage, 256, 192, 768, 576);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return damage when set.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 256, 192, 768, 576));
+
+ return 0;
+}
+
+static int igt_damage_iter_single_damage_intersect_src(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ /* Damage intersect with plane src. */
+ set_damage_clip(&damage, 256, 192, 1360, 768);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return damage clipped to src.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 256, 192, 1024, 768));
+
+ return 0;
+}
+
+static int igt_damage_iter_single_damage_outside_src(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ /* Damage clip outside plane src */
+ set_damage_clip(&damage, 1360, 1360, 1380, 1380);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 0, "Should have no damage.");
+
+ return 0;
+}
+
+static int igt_damage_iter_single_damage_fractional_src(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src has fractional part. */
+ set_plane_src(&old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_damage_clip(&damage, 10, 10, 256, 330);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return damage when set.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 10, 10, 256, 330));
+
+ return 0;
+}
+
+static int igt_damage_iter_single_damage_intersect_fractional_src(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src has fractional part. */
+ set_plane_src(&old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ /* Damage intersect with plane src. */
+ set_damage_clip(&damage, 10, 1, 1360, 330);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return damage clipped to rounded off src.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 10, 4, 1029, 330));
+
+ return 0;
+}
+
+static int igt_damage_iter_single_damage_outside_fractional_src(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src has fractional part. */
+ set_plane_src(&old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ /* Damage clip outside plane src */
+ set_damage_clip(&damage, 1360, 1360, 1380, 1380);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 0, "Should have no damage.");
+
+ return 0;
+}
+
+static int igt_damage_iter_single_damage_src_moved(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src moved since old plane state. */
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 10 << 16, 10 << 16,
+ (10 + 1024) << 16, (10 + 768) << 16);
+ set_damage_clip(&damage, 20, 30, 256, 256);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return plane src as damage.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 10, 10, 1034, 778));
+
+ return 0;
+}
+
+static int igt_damage_iter_single_damage_fractional_src_moved(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage;
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ /* Plane src with fractional part moved since old plane state. */
+ set_plane_src(&old_state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ set_plane_src(&state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ /* Damage intersect with plane src. */
+ set_damage_clip(&damage, 20, 30, 1360, 256);
+ set_damage_blob(&damage_blob, &damage, sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return rounded off plane src as damage.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 4, 4, 1029, 773));
+
+ return 0;
+}
+
+static int igt_damage_iter_damage(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ /* 2 damage clips. */
+ set_damage_clip(&damage[0], 20, 30, 200, 180);
+ set_damage_clip(&damage[1], 240, 200, 280, 250);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip) {
+ if (num_hits == 0)
+ FAIL_ON(!check_damage_clip(&state, &clip, 20, 30, 200, 180));
+ if (num_hits == 1)
+ FAIL_ON(!check_damage_clip(&state, &clip, 240, 200, 280, 250));
+ num_hits++;
+ }
+
+ FAIL(num_hits != 2, "Should return damage when set.");
+
+ return 0;
+}
+
+static int igt_damage_iter_damage_one_intersect(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ set_plane_src(&old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ /* 2 damage clips, one intersect plane src. */
+ set_damage_clip(&damage[0], 20, 30, 200, 180);
+ set_damage_clip(&damage[1], 2, 2, 1360, 1360);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip) {
+ if (num_hits == 0)
+ FAIL_ON(!check_damage_clip(&state, &clip, 20, 30, 200, 180));
+ if (num_hits == 1)
+ FAIL_ON(!check_damage_clip(&state, &clip, 4, 4, 1029, 773));
+ num_hits++;
+ }
+
+ FAIL(num_hits != 2, "Should return damage when set.");
+
+ return 0;
+}
+
+static int igt_damage_iter_damage_one_outside(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ set_plane_src(&old_state, 0, 0, 1024 << 16, 768 << 16);
+ set_plane_src(&state, 0, 0, 1024 << 16, 768 << 16);
+ /* 2 damage clips, one outside plane src. */
+ set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
+ set_damage_clip(&damage[1], 240, 200, 280, 250);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return damage when set.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 240, 200, 280, 250));
+
+ return 0;
+}
+
+static int igt_damage_iter_damage_src_moved(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = true,
+ };
+
+ set_plane_src(&old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ /* 2 damage clips, one outside plane src. */
+ set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
+ set_damage_clip(&damage[1], 240, 200, 280, 250);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 1, "Should return round off plane src as damage.");
+ FAIL_ON(!check_damage_clip(&state, &clip, 3, 3, 1028, 772));
+
+ return 0;
+}
+
+static int igt_damage_iter_damage_not_visible(void *ignored)
+{
+ struct drm_atomic_helper_damage_iter iter;
+ struct drm_plane_state old_state;
+ struct drm_property_blob damage_blob;
+ struct drm_mode_rect damage[2];
+ struct drm_rect clip;
+ uint32_t num_hits = 0;
+
+ struct drm_framebuffer fb = {
+ .width = 2048,
+ .height = 2048
+ };
+
+ struct drm_plane_state state = {
+ .crtc = ZERO_SIZE_PTR,
+ .fb = &fb,
+ .visible = false,
+ };
+
+ set_plane_src(&old_state, 0x40002, 0x40002,
+ 0x40002 + (1024 << 16), 0x40002 + (768 << 16));
+ set_plane_src(&state, 0x3fffe, 0x3fffe,
+ 0x3fffe + (1024 << 16), 0x3fffe + (768 << 16));
+ /* 2 damage clips, one outside plane src. */
+ set_damage_clip(&damage[0], 1360, 1360, 1380, 1380);
+ set_damage_clip(&damage[1], 240, 200, 280, 250);
+ set_damage_blob(&damage_blob, &damage[0], sizeof(damage));
+ set_plane_damage(&state, &damage_blob);
+ drm_atomic_helper_damage_iter_init(&iter, &old_state, &state);
+ drm_atomic_for_each_plane_damage(&iter, &clip)
+ num_hits++;
+
+ FAIL(num_hits != 0, "Should not return any damage.");
+
+ return 0;
+}
+
+#include "drm_selftest.c"
+
+static int __init test_drm_damage_helper_init(void)
+{
+ int err;
+
+ err = run_selftests(selftests, ARRAY_SIZE(selftests), NULL);
+
+ return err > 0 ? 0 : err;
+}
+
+static void __exit test_drm_damage_helper_exit(void)
+{
+}
+
+module_init(test_drm_damage_helper_init);
+module_exit(test_drm_damage_helper_exit);
+
+MODULE_AUTHOR("VMware Inc.");
+MODULE_LICENSE("GPL");
--
2.17.1
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