[v1] drm/panthor: Fix partial unmaps, again

[PATCH 0/4] drm/panthor: Fix partial unmaps, again

Boris Brezillon posted 4 patches 1 week ago

Diff against v2
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drivers/gpu/drm/panthor/panthor_mmu.c | 100 ++++++++++++++++++++++++----------
1 file changed, 71 insertions(+), 29 deletions(-)

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[PATCH 0/4] drm/panthor: Fix partial unmaps, again

Posted by Boris Brezillon 1 week ago

The first patch is just a theoretical perf improvement to avoid
unnecessary unmap+map caused by false positive returned by
iova_mapped_as_huge_page(). The second patch is a fix for a real
bug when iova_mapped_as_huge_page() is called on an imported BO.
The last 2 patches are just consolidating the logic to make things
clearer.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
---
Boris Brezillon (4):
      drm/panthor: Avoid false positives in iova_mapped_as_huge_page()
      drm/panthor: Fix iova_mapped_as_huge_page() for imported BOs
      drm/panthor: Consolidate the is-huge-page-mapping test
      drm/panthor: Actually check huge-page mapping on sparse regions

 drivers/gpu/drm/panthor/panthor_mmu.c | 100 ++++++++++++++++++++++++----------
 1 file changed, 71 insertions(+), 29 deletions(-)
---
base-commit: 5535d5e61a77ad79118ea7665ce1c14f857f0f12
change-id: 20260916-panthor-fix-partial-unmap-a52034f21184

Best regards,
--  
Boris Brezillon <boris.brezillon@collabora.com>