[igt-dev] [PATCH] tests/intel/kms_flip_scaled_crc: Add support for FP16 compressed formats

[Melanie Lobo <melanie.lobo@intel.com>]

MTL supports FP16 format which is a binary floating-point computer
number format that occupies 16 bits in computer memory. In this test
platform shall render compression in display engine to receive
FP16 compressed formats.

cc: Juha-Pekka Heikkila <juhapekka.heikkila@gmail.com>
cc: Bhanuprakash Modem <bhanuprakash.modem@intel.com>
cc: Swati Sharma <swati2.sharma@intel.com>
Signed-off-by: Melanie Lobo <melanie.lobo@intel.com>
---
 lib/intel_aux_pgtable.c           |  5 +++++
 tests/intel/kms_flip_scaled_crc.c | 24 ++++++++++++++++++++++++
 2 files changed, 29 insertions(+)

diff --git a/lib/intel_aux_pgtable.c b/lib/intel_aux_pgtable.c
index 7c79521344de..a612df407692 100644
--- a/lib/intel_aux_pgtable.c
+++ b/lib/intel_aux_pgtable.c
@@ -21,6 +21,7 @@
 #define AUX_FORMAT_AYUV		0x09
 #define AUX_FORMAT_ARGB_8B	0x0A
 #define AUX_FORMAT_NV12_21	0x0F
+#define AUX_FORMAT_XRGB16161616_64B 0x10
 
 struct pgtable_level_desc {
 	int idx_shift;
@@ -305,6 +306,10 @@ static uint64_t pgt_get_l1_flags(const struct intel_buf *buf, int surface_idx)
 			entry.e.format = AUX_FORMAT_ARGB_8B;
 			entry.e.depth = bpp_to_depth_val(32);
 			break;
+		case 64:
+			entry.e.format = AUX_FORMAT_XRGB16161616_64B;
+			entry.e.depth = bpp_to_depth_val(64);
+			break;
 		default:
 			igt_assert(0);
 		}
diff --git a/tests/intel/kms_flip_scaled_crc.c b/tests/intel/kms_flip_scaled_crc.c
index 2997b63fac40..6874f747b280 100644
--- a/tests/intel/kms_flip_scaled_crc.c
+++ b/tests/intel/kms_flip_scaled_crc.c
@@ -142,6 +142,14 @@
  * Mega feature: General Display Features
  * Test category: functionality test
  *
+ * SUBTEST: flip-64bpp-4tile-to-32bpp-4tilemtlrcccs-%s
+ * Description: Flip from 64bpp non scaled fb to 32bpp %arg[1] fb to stress CD
+ *              clock programming
+ * Driver requirement: i915, xe
+ * Functionality: ccs, scaling, tiling, vblank
+ * Mega feature: General Display Features
+ * Test category: functionality test
+ *
  * arg[1]:
  *
  * @downscaling:        Downscaled
@@ -406,6 +414,14 @@ const struct {
 		1.0,
 		2.0,
 	},
+	{
+		"flip-64bpp-4tile-to-32bpp-4tilemtlrcccs-downscaling",
+		"Flip from 64bpp non scaled fb to 32bpp downscaled fb to stress CD clock programming",
+		I915_FORMAT_MOD_4_TILED, DRM_FORMAT_XRGB16161616F,
+		I915_FORMAT_MOD_4_TILED_MTL_RC_CCS, DRM_FORMAT_XRGB16161616F,
+		1.0,
+		2.0,
+	},
 	{
 		"flip-32bpp-ytile-to-64bpp-ytile-upscaling",
 		"Flip from 32bpp non scaled fb to 64bpp upscaled fb to stress CD clock programming",
@@ -590,6 +606,14 @@ const struct {
 		0.5,
 		1.0,
 	},
+	{
+		"flip-64bpp-4tile-to-32bpp-4tilemtlrcccs-upscaling",
+		"Flip from 64bpp non scaled fb to 32bpp upscaled fb to stress CD clock programming",
+		I915_FORMAT_MOD_4_TILED, DRM_FORMAT_XRGB16161616F,
+		I915_FORMAT_MOD_4_TILED_MTL_RC_CCS, DRM_FORMAT_XRGB16161616F,
+		0.5,
+		1.0,
+	},
 };
 
 static void setup_fb(data_t *data, struct igt_fb *newfb, uint32_t width,
-- 
2.17.1