Validate refused every COND_EXEC, so a submission that uses one was
rejected as a whole. The packet now reads the dword at its address once
the earlier packets of its queue and their GPU writes have completed,
and skips the exec_count dwords after it when the dword is zero.
The command copy that inlines INDIRECT_BUFFERs records where each range
ends, so a range over an INDIRECT_BUFFER skips the whole buffer.
Unaligned addresses, address bits 48 and up, and reserved control and
count bits throw; the cache policy is accepted on compute queues only,
as the MEC defines it. A flip inside a range, a range that ends inside
a packet or past its command buffer, and a chained INDIRECT_BUFFER or
REWIND inside a range throw.
agc_driver_pm4 and agc_driver_flip cover the skips and the rejections.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
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