[PATCH i-g-t 8/8] lib/igt_fb: on Intel Xe force Vebox copy on yuv formats

[Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>]

This is to test Vebox engine along with other engines. Vebox is
forced to be used when use tile4 needing tile convert and pixel
format is yuv.

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
---
 lib/igt_fb.c | 34 +++++++++++++++++++++++++---------
 1 file changed, 25 insertions(+), 9 deletions(-)

diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index cfd5d66fb..766d163e5 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -2596,6 +2596,19 @@ static bool block_copy_ok(const struct igt_fb *fb)
 					       fb_tile_to_blt_tile(fb->modifier));
 }
 
+static bool use_vebox_copy(const struct igt_fb *src_fb,
+			   const struct igt_fb *dst_fb)
+{
+	return (is_i915_device(src_fb->fd) &&
+		(igt_fb_is_gen12_mc_ccs_modifier(dst_fb->modifier) ||
+		 igt_format_is_yuv(src_fb->drm_format) ||
+		 igt_format_is_yuv(dst_fb->drm_format))) ||
+	       (is_xe_device(src_fb->fd) &&
+		(dst_fb->modifier == I915_FORMAT_MOD_4_TILED ||
+		 src_fb->modifier == I915_FORMAT_MOD_4_TILED) &&
+		 igt_format_is_yuv(dst_fb->drm_format));
+}
+
 static bool ccs_needs_enginecopy(const struct igt_fb *fb)
 {
 	if (igt_fb_is_gen12_rc_ccs_cc_modifier(fb->modifier))
@@ -2624,6 +2637,12 @@ static bool blitter_ok(const struct igt_fb *fb)
 	    is_xe_device(fb->fd))
 		return false;
 
+	/*
+	 * This is to utilize Vebox engine for testing on Xe driver.
+	 */
+	if (use_vebox_copy(fb, fb) && fb->modifier != DRM_FORMAT_MOD_NONE)
+		return false;
+
 	if (is_xe_device(fb->fd))
 		return true;
 
@@ -2664,6 +2683,12 @@ static bool use_enginecopy(const struct igt_fb *fb)
 	if (ccs_needs_enginecopy(fb))
 		return true;
 
+	/*
+	 * This is to utilize Vebox for testing
+	 */
+	if (use_vebox_copy(fb, fb))
+		return true;
+
 	return fb->modifier == I915_FORMAT_MOD_Yf_TILED ||
 		fb->modifier == I915_FORMAT_MOD_X_TILED;
 }
@@ -2874,15 +2899,6 @@ static void fini_buf(struct intel_buf *buf)
 	intel_buf_destroy(buf);
 }
 
-static bool use_vebox_copy(const struct igt_fb *src_fb,
-			   const struct igt_fb *dst_fb)
-{
-
-	return igt_fb_is_gen12_mc_ccs_modifier(dst_fb->modifier) ||
-	       igt_format_is_yuv(src_fb->drm_format) ||
-	       igt_format_is_yuv(dst_fb->drm_format);
-}
-
 /**
  * copy_with_engine:
  * @blit: context for the copy operation
-- 
2.43.0