[PATCH v2] drm/amdkfd: Fix instruction hazard in gfx12 trap handler

[Lancelot SIX]

On 07/02/2025 23:38, Jay Cornwall wrote:
> VALU instructions with SGPR source need wait states to avoid hazard
> with SALU using different SGPR.
> 
> v2: Eliminate some hazards to reduce code explosion
> 
> Signed-off-by: Jay Cornwall <jay.cornwall at amd.com>
> Cc: Lancelot Six <lancelot.six at amd.com>

Hi,

That looks good to me, thanks.  Sorry for the long delay to review.

Reviewed-by: Lancelot Six <lancelot.six at amd.com>

Best,
Lancelot.

> ---
>   .../gpu/drm/amd/amdkfd/cwsr_trap_handler.h    | 677 ++++++++++--------
>   .../amd/amdkfd/cwsr_trap_handler_gfx12.asm    |  82 ++-
>   2 files changed, 404 insertions(+), 355 deletions(-