diff options
| -rw-r--r-- | src/panfrost/pandecode/decode.c | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/src/panfrost/pandecode/decode.c b/src/panfrost/pandecode/decode.c index 9c29d870332..29bf2c2dc3a 100644 --- a/src/panfrost/pandecode/decode.c +++ b/src/panfrost/pandecode/decode.c @@ -779,7 +779,16 @@ pandecode_rt_format(struct mali_rt_format format) pandecode_swizzle(format.swizzle); - pandecode_prop("no_preload = 0x%" PRIx32, format.no_preload); + /* In theory, the no_preload bit can be cleared to enable MFBD preload, + * which is a faster hardware-based alternative to the wallpaper method + * to preserve framebuffer contents across frames. In practice, MFBD + * preload is buggy on Midgard, and so this is a chicken bit. If this + * bit isn't set, most likely something broke unrelated to preload */ + + if (!format.no_preload) { + pandecode_msg("XXX: buggy MFBD preload enabled - chicken bit should be clear\n"); + pandecode_prop("no_preload = 0x%" PRIx32, format.no_preload); + } if (format.zero) pandecode_prop("zero = 0x%" PRIx32, format.zero); |