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pan/va: Add Bifrost-style LD_VAR instructions

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For use in the legacy non-MALLOC_IDVS flow. Especially useful in blit shaders.

Signed-off-by: Alyssa Rosenzweig <alyssa@collabora.com>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/15223>
This commit is contained in:
Alyssa Rosenzweig
2022-03-23 20:29:08 -04:00
committed by Marge Bot
parent 295b802f64
commit cf6d1a81f6
1 changed files with 48 additions and 0 deletions
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src/panfrost/bifrost/valhall/ISA.xml
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@@ -881,6 +881,54 @@
<src/>
</group>
<ins name="LD_VAR" title="Load indirect varying" unit="V" opcode="0x64">
<desc>Interpolates a given varying from a software buffer</desc>
<slot/>
<vecsize/>
<regfmt/>
<sample/>
<update/>
<sr write="true"/>
<sr_count/>
<src/>
<src>Varying index and table</src>
</ins>
<ins name="LD_VAR_IMM" title="Load immediate varying" unit="V" opcode="0x54">
<desc>Interpolates a given varying from a software buffer</desc>
<slot/>
<vecsize/>
<regfmt/>
<sample/>
<update/>
<sr write="true"/>
<sr_count/>
<src/>
<imm name="table" start="8" size="4"/>
<imm name="index" start="12" size="8"/>
</ins>
<ins name="LD_VAR_FLAT" title="Load indirect varying" unit="V" opcode="0x55">
<desc>Fetches a given varying from a software buffer</desc>
<slot/>
<vecsize/>
<regfmt/>
<sr write="true"/>
<sr_count/>
<src>Varying index and table</src>
</ins>
<ins name="LD_VAR_FLAT_IMM" title="Load immediate varying" unit="V" opcode="0x41">
<desc>Fetches a given varying from a software buffer</desc>
<slot/>
<vecsize/>
<regfmt/>
<sr write="true"/>
<sr_count/>
<imm name="table" start="8" size="4"/>
<imm name="index" start="12" size="8"/>
</ins>
<ins name="LD_ATTR_IMM" title="Load immediate attribute" opcode="0x66" unit="LS">
<desc>
Load `vecsize` components from the attribute descriptor at entry `index`