panfrost/midgard: Drop dependence on mesa/st

[mesa.git] / src / gallium / drivers / panfrost / include / panfrost-job.h

diff --git a/src/gallium/drivers/panfrost/include/panfrost-job.h b/src/gallium/drivers/panfrost/include/panfrost-job.h
index 28ba3f85ad405ceab2cee08a8120d87c4a0d400d..97fcb0380dd2b8bf3b68896d55baef66bd393732 100644 (file)
--- a/src/gallium/drivers/panfrost/include/panfrost-job.h
+++ b/src/gallium/drivers/panfrost/include/panfrost-job.h
@@ -408,6 +408,13 @@ enum mali_format {
 /* Applies to unknown1 */
 #define MALI_NO_ALPHA_TO_COVERAGE (1 << 10)
 
+/* Flags denoting the fragment shader's use of tilebuffer readback. If the
+ * shader might read any part of the tilebuffer, set MALI_READS_TILEBUFFER. If
+ * it might read depth/stencil in particular, also set MALI_READS_ZS */
+
+#define MALI_READS_ZS (1 << 12)
+#define MALI_READS_TILEBUFFER (1 << 16)
+
 struct mali_blend_meta {
 #ifndef BIFROST
         /* Base value of 0x200.
@@ -754,6 +761,13 @@ enum mali_attr_mode {
        MALI_ATTR_NPOT_DIVIDE = 4,
 };
 
+/* This magic "pseudo-address" is used as `elements` to implement
+ * gl_PointCoord. When read from a fragment shader, it generates a point
+ * coordinate per the OpenGL ES 2.0 specification. Flipped coordinate spaces
+ * require an affine transformation in the shader. */
+
+#define MALI_VARYING_POINT_COORD (0x60)
+
 union mali_attr {
        /* This is used for actual attributes. */
        struct {
@@ -1207,14 +1221,6 @@ struct mali_viewport {
         u16 viewport1[2];
 } __attribute__((packed));
 
-/* TODO: Varying meta is symmetrical with attr_meta, but there is some
- * weirdness associated. Figure it out. */
-
-struct mali_unknown6 {
-        u64 unknown0;
-        u64 unknown1;
-};
-
 /* From presentations, 16x16 tiles externally. Use shift for fast computation
  * of tile numbers. */
 
@@ -1419,12 +1425,19 @@ struct bifrost_render_target {
  * - TODO: Anything else?
  */
 
+/* Flags field: note, these are guesses */
+
+#define MALI_EXTRA_PRESENT      (0x400)
+#define MALI_EXTRA_AFBC         (0x20)
+#define MALI_EXTRA_AFBC_ZS      (0x10)
+#define MALI_EXTRA_ZS           (0x4)
+
 struct bifrost_fb_extra {
         mali_ptr checksum;
         /* Each tile has an 8 byte checksum, so the stride is "width in tiles * 8" */
         u32 checksum_stride;
 
-        u32 unk;
+        u32 flags;
 
         union {
                 /* Note: AFBC is only allowed for 24/8 combined depth/stencil. */