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lib: fix gen5 workaround emission

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Using BEGIN_BATCH can lead to a nice inf recursion through require_space
-> flush_batch -> BEGIN_BATCH.

Also fix things up to always require BATCH_RESERVED. We need 2 dwords
for the gen5 workaround and 2 dwords for MI_BB_END.
This commit is contained in:
Daniel Vetter
2012-05-29 22:14:06 +02:00
parent 04dfa492d1
commit bfbe813f8f
2 changed files with 6 additions and 5 deletions
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lib/intel_batchbuffer.h
+1 -1
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@@ -63,7 +63,7 @@ static inline void
intel_batchbuffer_require_space(struct intel_batchbuffer *batch,
unsigned int sz)
{
assert(sz < BATCH_SZ - 8);
assert(sz < BATCH_SZ - BATCH_RESERVED);
if (intel_batchbuffer_space(batch) < sz)
intel_batchbuffer_flush(batch);
}