Make sure the CCS modifier is supported on our plane, before we try to
use it on that plane.
Signed-off-by: Daniel Stone <daniels@xxxxxxxxxxxxx>
---
tests/kms_ccs.c | 117 +++++++++++++++++++++++++++++++++++++++++++++++++++++++-
1 file changed, 116 insertions(+), 1 deletion(-)
diff --git a/tests/kms_ccs.c b/tests/kms_ccs.c
index 1a5cdcd4..e74a68af 100644
--- a/tests/kms_ccs.c
+++ b/tests/kms_ccs.c
@@ -54,6 +54,118 @@ typedef struct {
#define CCS_UNCOMPRESSED 0x0
#define CCS_COMPRESSED 0x55
+struct local_drm_format_modifier {
+ /* Bitmask of formats in get_plane format list this info applies to. The
+ * offset allows a sliding window of which 64 formats (bits).
+ *
+ * Some examples:
+ * In today's world with < 65 formats, and formats 0, and 2 are
+ * supported
+ * 0x0000000000000005
+ * ^-offset = 0, formats = 5
+ *
+ * If the number formats grew to 128, and formats 98-102 are
+ * supported with the modifier:
+ *
+ * 0x0000003c00000000 0000000000000000
+ * ^
+ * |__offset = 64, formats = 0x3c00000000
+ *
+ */
+ uint64_t formats;
+ uint32_t offset;
+ uint32_t pad;
+
+ /* This modifier can be used with the format for this plane. */
+ uint64_t modifier;
+};
+
+struct local_drm_format_modifier_blob {
+#define LOCAL_FORMAT_BLOB_CURRENT 1
+ /* Version of this blob format */
+ uint32_t version;
+
+ /* Flags */
+ uint32_t flags;
+
+ /* Number of fourcc formats supported */
+ uint32_t count_formats;
+
+ /* Where in this blob the formats exist (in bytes) */
+ uint32_t formats_offset;
+
+ /* Number of drm_format_modifiers */
+ uint32_t count_modifiers;
+
+ /* Where in this blob the modifiers exist (in bytes) */
+ uint32_t modifiers_offset;
+
+ /* u32 formats[] */
+ /* struct drm_format_modifier modifiers[] */
+};
+
+static inline uint32_t *
+formats_ptr(struct local_drm_format_modifier_blob *blob)
+{
+ return (uint32_t *)(((char *)blob) + blob->formats_offset);
+}
+
+static inline struct local_drm_format_modifier *
+modifiers_ptr(struct local_drm_format_modifier_blob *blob)
+{
+ return (struct local_drm_format_modifier *)(((char *)blob) + blob->modifiers_offset);
+}
+
+static void plane_require_ccs(data_t *data, igt_plane_t *plane, uint32_t format)
+{
+ drmModePropertyBlobPtr blob;
+ struct local_drm_format_modifier_blob *blob_data;
+ struct local_drm_format_modifier *modifiers;
+ uint32_t *formats;
+ uint64_t blob_id;
+ bool ret;
+ int fmt_idx = -1;
+
+ ret = kmstest_get_property(data->drm_fd, plane->drm_plane->plane_id,
+ DRM_MODE_OBJECT_PLANE, "IN_FORMATS",
+ NULL, &blob_id, NULL);
+ igt_skip_on_f(ret == false, "IN_FORMATS not supported by kernel\n");
+ igt_skip_on_f(blob_id == 0, "IN_FORMATS not supported by plane\n");
+ blob = drmModeGetPropertyBlob(data->drm_fd, blob_id);
+ igt_assert(blob);
+ igt_assert_lte(sizeof(struct local_drm_format_modifier_blob),
+ blob->length);
+
+ blob_data = (struct local_drm_format_modifier_blob *) blob->data;
+ formats = formats_ptr(blob_data);
+ for (int i = 0; i < blob_data->count_formats; i++) {
+ if (formats[i] == format) {
+ fmt_idx = i;
+ break;
+ }
+ }
+
+ igt_skip_on_f(fmt_idx == -1,
+ "Format 0x%x not supported by plane\n", format);
+
+ modifiers = modifiers_ptr(blob_data);
+ for (int i = 0; i < blob_data->count_modifiers; i++) {
+ if (modifiers[i].modifier != LOCAL_I915_FORMAT_MOD_Y_TILED_CCS)
+ continue;
+
+ if (modifiers[i].offset > fmt_idx ||
+ fmt_idx > modifiers[i].offset + 63)
+ continue;
+
+ if (modifiers[i].formats &
+ (1UL << (fmt_idx - modifiers[i].offset)))
+ return;
+
+ igt_skip("i915 CCS modifier not supported for format\n");
+ }
+
+ igt_skip("i915 CCS modifier not supported by kernel for plane\n");
+}
static void render_fb(data_t *data, uint32_t gem_handle, unsigned int size,
enum test_fb_flags fb_flags,
@@ -222,12 +334,15 @@ static void try_config(data_t *data, enum test_fb_flags fb_flags)
else
commit = COMMIT_UNIVERSAL;
+ primary = igt_output_get_plane_type(data->output,
+ DRM_PLANE_TYPE_PRIMARY);
+ plane_require_ccs(data, primary, DRM_FORMAT_XRGB8888);
+
generate_fb(data, &data->fb, drm_mode->hdisplay, drm_mode->vdisplay,
fb_flags);
if (data->flags & TEST_BAD_PIXEL_FORMAT)
return;
- primary = igt_output_get_plane_type(data->output, DRM_PLANE_TYPE_PRIMARY);
igt_plane_set_position(primary, 0, 0);
igt_plane_set_size(primary, drm_mode->hdisplay, drm_mode->vdisplay);
igt_plane_set_fb(primary, &data->fb);
--
2.13.4
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