[Beignet] Gen7 Instructions Opcode Examples

Dushyant Behl myselfdushyantbehl at gmail.com
Mon Jul 6 05:48:58 PDT 2015


Hello Guys,

I'm extremely sorry if I mailed to the wrong mailing list. Please forgive
me if I've done anything wrong, this is my first message to this mailing
list.

I'm a masters student of computer science, I'm trying to understand the
beignet project and how the batch buffers are submitted to the i915 gpu
driver.
I have a problem getting hold of the arithmetic instruction formats of the
Intel Gen7 Haswell processors.
Can anyone please help me by pointing me to the location where beignet
compiler backend emits compiled instuctions (byte code) in the batchbuffer.

Also I wanted to ask if is possible to test the execution of one single
instruction like ADD/SUB in the batch buffer by writing the opcodes along
with some src and dest memory locations directly in batchbuffer rather than
going through the beignet compiler.
Can anyone please provide me an example of any such instruction?

Thanks in advance,

Dushyant
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