From 1b241c59e834ba4702a79530c3ea373101d55788 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Wed, 14 Jan 2015 10:53:20 +1300
Subject: [PATCH] vc4: Add dumping for the TILE_RENDERING_MODE_CONFIG packet.

I wanted to read it, so I wrote parsing.
---
 src/gallium/drivers/vc4/vc4_cl_dump.c | 71 ++++++++++++++++++++++++++-
 1 file changed, 70 insertions(+), 1 deletion(-)

diff --git a/src/gallium/drivers/vc4/vc4_cl_dump.c b/src/gallium/drivers/vc4/vc4_cl_dump.c
index 6c380219ce1..c9044b4ab81 100644
--- a/src/gallium/drivers/vc4/vc4_cl_dump.c
+++ b/src/gallium/drivers/vc4/vc4_cl_dump.c
@@ -95,6 +95,75 @@ dump_VC4_PACKET_CLIPPER_Z_SCALING(void *cl, uint32_t offset, uint32_t hw_offset)
                 scale[0], scale[1]);
 }
 
+static void
+dump_VC4_PACKET_TILE_RENDERING_MODE_CONFIG(void *cl, uint32_t offset, uint32_t hw_offset)
+{
+        uint32_t *render_offset = cl + offset;
+        uint16_t *shorts = cl + offset + 4;
+        uint8_t *bytes = cl + offset + 8;
+
+        fprintf(stderr, "0x%08x 0x%08x:       color offset 0x%08x\n",
+                offset, hw_offset,
+                *render_offset);
+
+        fprintf(stderr, "0x%08x 0x%08x:       width %d\n",
+                offset + 4, hw_offset + 4,
+                shorts[0]);
+
+        fprintf(stderr, "0x%08x 0x%08x:       height %d\n",
+                offset + 6, hw_offset + 6,
+                shorts[1]);
+
+        const char *format = "???";
+        switch ((bytes[0] >> 2) & 3) {
+        case 0:
+                format = "BGR565_DITHERED";
+                break;
+        case 1:
+                format = "RGBA8888";
+                break;
+        case 2:
+                format = "BGR565";
+                break;
+        }
+        if (shorts[2] & VC4_RENDER_CONFIG_TILE_BUFFER_64BIT)
+                format = "64bit";
+
+        const char *tiling = "???";
+        switch ((bytes[0] >> 6) & 3) {
+        case 0:
+                tiling = "linear";
+                break;
+        case 1:
+                tiling = "T";
+                break;
+        case 2:
+                tiling = "LT";
+                break;
+        }
+
+        fprintf(stderr, "0x%08x 0x%08x: 0x%02x %s %s %s\n",
+                offset + 8, hw_offset + 8,
+                bytes[0],
+                format, tiling,
+                (bytes[0] & VC4_RENDER_CONFIG_MS_MODE_4X) ? "ms" : "ss");
+
+        const char *earlyz = "";
+        if (bytes[1] & (1 << 3)) {
+                earlyz = "early_z disabled";
+        } else {
+                if (bytes[1] & (1 << 2))
+                        earlyz = "early_z >";
+                else
+                        earlyz = "early_z <";
+        }
+
+        fprintf(stderr, "0x%08x 0x%08x: 0x%02x %s\n",
+                offset + 9, hw_offset + 9,
+                bytes[1],
+                earlyz);
+}
+
 static void
 dump_VC4_PACKET_TILE_COORDINATES(void *cl, uint32_t offset, uint32_t hw_offset)
 {
@@ -165,7 +234,7 @@ static const struct packet_info {
         PACKET_DUMP(VC4_PACKET_CLIPPER_Z_SCALING, 9),
 
         PACKET(VC4_PACKET_TILE_BINNING_MODE_CONFIG, 16),
-        PACKET(VC4_PACKET_TILE_RENDERING_MODE_CONFIG, 11),
+        PACKET_DUMP(VC4_PACKET_TILE_RENDERING_MODE_CONFIG, 11),
         PACKET(VC4_PACKET_CLEAR_COLORS, 14),
         PACKET_DUMP(VC4_PACKET_TILE_COORDINATES, 3),
 
-- 
2.30.2