[igt-dev] [PATCH i-g-t 3/3] lib/igt_fb: use blitter for rendercompression on Intel hw with flat ccs

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

When on flat ccs use blitter for doing rc ccs and rc ccs cc instead
of rendercopy

Signed-off-by: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
---
 lib/igt_fb.c | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/lib/igt_fb.c b/lib/igt_fb.c
index b3fc3766..fd84ef24 100644
--- a/lib/igt_fb.c
+++ b/lib/igt_fb.c
@@ -2486,7 +2486,9 @@ static bool blitter_ok(const struct igt_fb *fb)
 	if (!is_i915_device(fb->fd))
 		return false;
 
-	if (is_ccs_modifier(fb->modifier))
+	if ((is_ccs_modifier(fb->modifier) &&
+	     !HAS_FLATCCS(intel_get_drm_devid(fb->fd)))
+	     || is_gen12_mc_ccs_modifier(fb->modifier))
 		return false;
 
 	for (int i = 0; i < fb->num_planes; i++) {
@@ -2833,9 +2835,12 @@ static void blitcopy(const struct igt_fb *dst_fb,
 	struct blt_block_copy_data_ext ext = {}, *pext = NULL;
 	uint32_t mem_region = HAS_FLATCCS(intel_get_drm_devid(src_fb->fd))
 			   ? REGION_LMEM(0) : REGION_SMEM;
+	/* To ignore CC plane */
+	uint32_t src_cc = src_fb->modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS_CC ? 1 : 0;
+	uint32_t dst_cc = dst_fb->modifier == I915_FORMAT_MOD_4_TILED_DG2_RC_CCS_CC ? 1 : 0;
 
 	igt_assert_eq(dst_fb->fd, src_fb->fd);
-	igt_assert_eq(dst_fb->num_planes, src_fb->num_planes);
+	igt_assert_eq(dst_fb->num_planes - dst_cc, src_fb->num_planes - src_cc);
 
 	src_tiling = igt_fb_mod_to_tiling(src_fb->modifier);
 	dst_tiling = igt_fb_mod_to_tiling(dst_fb->modifier);
@@ -2851,7 +2856,7 @@ static void blitcopy(const struct igt_fb *dst_fb,
 							  mem_region) == 0);
 	}
 
-	for (int i = 0; i < dst_fb->num_planes; i++) {
+	for (int i = 0; i < dst_fb->num_planes - dst_cc; i++) {
 		igt_assert_eq(dst_fb->plane_bpp[i], src_fb->plane_bpp[i]);
 		igt_assert_eq(dst_fb->plane_width[i], src_fb->plane_width[i]);
 		igt_assert_eq(dst_fb->plane_height[i], src_fb->plane_height[i]);
-- 
2.25.1