[v9,0/6] Use drm_clflush* instead of clflush

Message

Michael Cheng Feb. 10, 2022, 1:26 a.m. UTC

This patch series re-work a few i915 functions to use drm_clflush_virt_range    
instead of calling clflush or clflushopt directly. This will prevent errors     
when building for non-x86 architectures.                                        
                                                                                 
v2: s/PAGE_SIZE/sizeof(value) for Re-work intel_write_status_page and added     
more patches to convert additional clflush/clflushopt to use drm_clflush*.      
(Michael Cheng)                                                                 
                                                                                 
v3: Drop invalidate_csb_entries and directly invoke drm_clflush_virt_ran        
                                                                                 
v4: Remove extra memory barriers                                                
                                                                                 
v5: s/cache_clflush_range/drm_clflush_virt_range  

v6: Fix up "Drop invalidate_csb_entries" to use correct parameters. Also
added in arm64 support for drm_clflush_virt_range.

v7: Re-order patches, and use correct macro for dcache flush for arm64. 

v8: Remove ifdef for asm/cacheflush.

v9: Rebased

Michael Cheng (6):
  drm: Add arch arm64 for drm_clflush_virt_range
  drm/i915/gt: Re-work intel_write_status_page
  drm/i915/gt: Drop invalidate_csb_entries
  drm/i915/gt: Re-work reset_csb
  drm/i915/: Re-work clflush_write32
  drm/i915/gt: replace cache_clflush_range

 drivers/gpu/drm/drm_cache.c                   |  5 +++++
 .../gpu/drm/i915/gem/i915_gem_execbuffer.c    |  8 +++-----
 drivers/gpu/drm/i915/gt/gen8_ppgtt.c          | 12 ++++++------
 drivers/gpu/drm/i915/gt/intel_engine.h        | 13 ++++---------
 .../drm/i915/gt/intel_execlists_submission.c  | 19 ++++++-------------
 drivers/gpu/drm/i915/gt/intel_gtt.c           |  2 +-
 drivers/gpu/drm/i915/gt/intel_ppgtt.c         |  2 +-
 .../gpu/drm/i915/gt/uc/intel_guc_submission.c |  2 +-
 8 files changed, 27 insertions(+), 36 deletions(-)