[PATCH] drm/amdkfd: Move gfx12 trap handler to separate file

[Jay Cornwall]

On 10/4/2024 04:42, Lancelot SIX wrote:

>> + * Copyright 2024 Advanced Micro Devices, Inc.
> 
> I am not really sure bout the year policy in the kernel, but all the 
> content here is dated from before 2024.  The vast majority is taken form 
> the cwsr_trap_handler_gfx10.asm file (copyright started in 2018), and 
> even the gfx12 specific part have been introduced starting 2023.

I don't really know either. I looked at other files (e.g. 
kfd_mqd_manager_v12.c) and we appear to reset the copyright date when 
they're forked, but I'm not sure if that's an official policy.
>> +    // If the PC points to S_ENDPGM then context save will fail if 
>> STATUS.HALT is set.
> 
> STATE_PRIV.HALT.  Also, I am not sure this part is still required for 
> gfx12.  That being said, this has nothing to do with the rework, so 
> removing is would be outside of the scope of this patch.

Yes, I'm avoiding any binary changes here to simplify things. There will 
be some follow-up work which changes the binary. This patch is laying 
the groundwork to avoid merge conflicts later.

Will fix up the other comments. Thanks.