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freedreno/regs: Document a7xx CP_MODIFY_TIMESTAMP

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Clears, adds to local, or adds to global timestamp

Signed-off-by: Danylo Piliaiev <dpiliaiev@igalia.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/23881>
This commit is contained in:
Danylo Piliaiev
2023-07-05 15:52:47 +02:00
committed by Marge Bot
parent ed6394fda7
commit 1f192e49b6
1 changed files with 14 additions and 0 deletions
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src/freedreno/registers/adreno/adreno_pm4.xml
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@@ -622,6 +622,8 @@ xsi:schemaLocation="http://nouveau.freedesktop.org/ rules-ng.xsd">
<!-- payload 4 dwords, last two could be render target addr (one pkt per MRT), possibly used for GMEM save/restore?-->
<value name="CP_RESOURCE_LIST" value="0x18" variants="A7XX-"/>
<value name="CP_BV_BR_COUNT_OPS" value="0x1b" variants="A7XX-"/> <!-- payload 1 or 2 dwords -->
<doc> Clears, adds to local, or adds to global timestamp </doc>
<value name="CP_MODIFY_TIMESTAMP" value="0x1c" variants="A7XX-"/>
<!-- similar to CP_CONTEXT_REG_BUNCH, but discards first two dwords?? -->
<value name="CP_CONTEXT_REG_BUNCH2" value="0x5d" variants="A7XX-"/>
<doc>
@@ -1980,6 +1982,18 @@ opcode: CP_LOAD_STATE4 (30) (4 dwords)
<reg32 offset="3" name="TIMESTAMP" type="uint"/>
</domain>
<domain name="CP_MODIFY_TIMESTAMP" width="32">
<enum name="timestamp_op">
<value name="MODIFY_TIMESTAMP_CLEAR" value="0"/>
<value name="MODIFY_TIMESTAMP_ADD_GLOBAL" value="1"/>
<value name="MODIFY_TIMESTAMP_ADD_LOCAL" value="2"/>
</enum>
<reg32 offset="0" name="0">
<bitfield name="ADD" low="0" high="7" type="uint"/>
<bitfield name="OP" low="28" high="31" type="timestamp_op"/>
</reg32>
</domain>
<domain name="CP_MEM_TO_SCRATCH_MEM" width="32">
<doc>
Best guess is that it is a faster way to fetch all the VSC_STATE registers