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SubjectRe: [PATCH 0/9] drm/i915: Replace kmap_atomic() with kmap_local_page()
On Tue, Feb 14, 2023 at 08:25:08PM -0800, Ira Weiny wrote:
> Date: Tue, 14 Feb 2023 20:25:08 -0800
> From: Ira Weiny <ira.weiny@intel.com>
> Subject: Re: [PATCH 0/9] drm/i915: Replace kmap_atomic() with
> kmap_local_page()
>
> Zhao Liu wrote:
> > From: Zhao Liu <zhao1.liu@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.

Sorry Ira, my delay is too long, I was busy with other patch work,
I will refresh v2 soon, and push this forward!

Best Regards,
Zhao

>
> 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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