[Intel-gfx] [PATCH v11 0/6] Use drm_clflush* instead of clflush

Michael Cheng michael.cheng at intel.com
Wed Feb 23 05:58:54 UTC 2022

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

v10: Replaced asm/cacheflush with linux/cacheflush

v11: Correctly get the sizeof certian addresses. Also rebased to the latest.

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                   |  6 ++++++
 .../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  | 20 +++++++------------
 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, 29 insertions(+), 36 deletions(-)


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