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| author | Eric Anholt <eric@anholt.net> | 2010-05-23 20:33:47 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-05-26 12:21:09 -0700 |
| commit | 06ebb55d308defbf8e01e30e4f994c2dd1071c40 (patch) | |
| tree | b0637b0a7ed1c49b558d0cda336e4c4f7461d0c3 | |
| parent | 158a158dad26b6888dd2ebaf13e6020894475fcb (diff) | |
Add a workaround for Ironlake errata relating to disabling the clipper.
| -rw-r--r-- | src/i965_render.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/src/i965_render.c b/src/i965_render.c index ed4b4d90..843776dd 100644 --- a/src/i965_render.c +++ b/src/i965_render.c @@ -1230,6 +1230,15 @@ static void i965_emit_composite_state(ScrnInfoPtr scrn) I915_GEM_DOMAIN_INSTRUCTION, 0, 0); } + if (IS_IGDNG(intel)) { + /* Ironlake errata workaround: Before disabling the clipper, + * you have to MI_FLUSH to get the pipeline idle. + */ + ATOMIC_BATCH(1); + OUT_BATCH(MI_FLUSH); + ADVANCE_BATCH(); + } + { int pipe_ctrl; /* Pipe control */ |