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freedreno: Document BV BIN_PREAMBLE usage

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Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/36590>
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Connor Abbott 2025-05-16 14:45:55 -04:00 • committed by Marge Bot
parent 32b646c597
commit efc4bb5174
1 changed files with 8 additions and 0 deletions
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8
src/freedreno/registers/adreno/adreno_pm4.xml
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@ -2088,6 +2088,14 @@ opcode: CP_LOAD_STATE4 (30) (4 dwords)
payload *and* skipsaverestore is set. This is
expected to restore static register values not
saved when skipsaverestore is set.
On BV, a skipsaverestore preemption is triggered
and this preamble type is executed whenever a
CP_THREAD_CONTROL that synchronizes threads
happens. This can be explicitly via
SYNC_THREADS, or implicitly when the value of
CONCURRENT_BIN_DISABLE changes from the previous
thread control.
</doc>
</value>
<value name="POSTAMBLE_AMBLE_TYPE" value="2">