[PATCH 0/9] drm/i915: Replace kmap_atomic() with kmap_local_page()
Ira Weiny
ira.weiny at intel.com
Wed Feb 15 04:25:08 UTC 2023
Zhao Liu wrote:
> From: Zhao Liu <zhao1.liu at intel.com>
>
> The use of kmap_atomic() is being deprecated in favor of
> kmap_local_page()[1].
Zhao,
Was there ever a v2 of this series? I'm not finding it on Lore.
Thanks,
Ira
>
> In the following patches, we can convert the calls of kmap_atomic() /
> kunmap_atomic() to kmap_local_page() / kunmap_local(), which can
> instead do the mapping / unmapping regardless of the context.
>
> With kmap_local_page(), the mapping is per thread, CPU local and not
> globally visible.
>
> [1]: https://lore.kernel.org/all/20220813220034.806698-1-ira.weiny@intel.com
> ---
> Zhao Liu (9):
> drm/i915: Use kmap_local_page() in gem/i915_gem_object.c
> drm/i915: Use kmap_local_page() in gem/i915_gem_pyhs.c
> drm/i915: Use kmap_local_page() in gem/i915_gem_shmem.c
> drm/i915: Use kmap_local_page() in gem/selftests/huge_pages.c
> drm/i915: Use kmap_local_page() in gem/selftests/i915_gem_coherency.c
> drm/i915: Use kmap_local_page() in gem/selftests/i915_gem_context.c
> drm/i915: Use memcpy_from_page() in gt/uc/intel_uc_fw.c
> drm/i915: Use kmap_local_page() in i915_cmd_parser.c
> drm/i915: Use kmap_local_page() in gem/i915_gem_execbuffer.c
>
> drivers/gpu/drm/i915/gem/i915_gem_execbuffer.c | 10 +++++-----
> drivers/gpu/drm/i915/gem/i915_gem_object.c | 8 +++-----
> drivers/gpu/drm/i915/gem/i915_gem_phys.c | 8 ++++----
> drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 6 ++++--
> drivers/gpu/drm/i915/gem/selftests/huge_pages.c | 6 +++---
> .../gpu/drm/i915/gem/selftests/i915_gem_coherency.c | 12 ++++--------
> .../gpu/drm/i915/gem/selftests/i915_gem_context.c | 8 ++++----
> drivers/gpu/drm/i915/gt/uc/intel_uc_fw.c | 5 +----
> drivers/gpu/drm/i915/i915_cmd_parser.c | 4 ++--
> 9 files changed, 30 insertions(+), 37 deletions(-)
>
> --
> 2.34.1
>
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