Hi Zou, Thank you for the quick reply.
I'm actually looking into the programmer reference manual for Haswell processors, https://01.org/linuxgraphics/documentation/driver-documentation-prms/2013-intel-core-processor-family Can you point me to the Volume where I can understand the run time environment setup needed? Thanks, Dushyant On Tue, Jul 7, 2015 at 1:06 PM, Zou, Nanhai <[email protected]> wrote: > Hi, > > Genx instructions are not directly inserted into batch buffer. > > The batch buffer contains some reference pointer which will finally point > to a GPU buffer which contains GPU instructions for a kernel. > > The instruction emit code are located in > backend/src/backend/genx_encoder.cpp > > > > To execute a kernel, with only opcode and memory access is not enough. > > There is an entire runtime environment need to be set up. > > To understand those, I suggest you first study hardware spec at > https://01.org/zh/linuxgraphics/documentation/hardware-specification-prms > > > > Thanks > > Zou Nanhai > > > > *From:* Beignet [mailto:[email protected]] *On Behalf > Of *Dushyant Behl > *Sent:* Monday, July 06, 2015 8:49 PM > *To:* [email protected] > *Subject:* [Beignet] Gen7 Instructions Opcode Examples > > > > 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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