Re: [PATCH 6.14.y] drm/xe: Invalidate L3 read-only cachelines for geometry streams too

[Sasha Levin <sashal@kernel.org>]

[ Sasha's backport helper bot ]

Hi,

Summary of potential issues:
⚠️ Found matching upstream commit but patch is missing proper reference to it

Found matching upstream commit: e775278cd75f24a2758c28558c4e41b36c935740

Note: The patch differs from the upstream commit:
---
1:  e775278cd75f2 ! 1:  e3a6440ff115b drm/xe: Invalidate L3 read-only cachelines for geometry streams too
    @@ Commit message
         Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
         (cherry picked from commit 61672806b579dd5a150a042ec9383be2bbc2ae7e)
         Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
    +    (cherry picked from commit e775278cd75f24a2758c28558c4e41b36c935740)
    +    Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
     
      ## drivers/gpu/drm/xe/instructions/xe_gpu_commands.h ##
     @@
    @@ drivers/gpu/drm/xe/xe_ring_ops.c: static int emit_pipe_invalidate(u32 mask_flags
     -	flags &= ~mask_flags;
     +	flags1 &= ~mask_flags;
      
    --	return emit_pipe_control(dw, i, 0, flags, LRC_PPHWSP_FLUSH_INVAL_SCRATCH_ADDR, 0);
    +-	return emit_pipe_control(dw, i, 0, flags, LRC_PPHWSP_SCRATCH_ADDR, 0);
     +	if (flags1 & PIPE_CONTROL_VF_CACHE_INVALIDATE)
     +		flags0 |= PIPE_CONTROL0_L3_READ_ONLY_CACHE_INVALIDATE;
     +
     +	return emit_pipe_control(dw, i, flags0, flags1,
    -+				 LRC_PPHWSP_FLUSH_INVAL_SCRATCH_ADDR, 0);
    ++				 LRC_PPHWSP_SCRATCH_ADDR, 0);
      }
      
      static int emit_store_imm_ppgtt_posted(u64 addr, u64 value,
---

Results of testing on various branches:

| Branch                    | Patch Apply | Build Test |
|---------------------------|-------------|------------|
| stable/linux-6.14.y       |  Success    |  Success   |