New feature and cleanup for Exynos fbdev

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- Move fbdev emulation to DRM client buffers
   . Reuses standard ADDFB2/GEM paths and simplifies cleanup.
 - Use DRM format helpers for geometry and size
   . Applies 4CC-based format/pitch/size calculation with stronger checks and PAGE_SIZE alignment.
   . Sets screen_size and fix.smem_len from actual allocated size.
 
 Exynos DRM internal cleanup
 - Adopt DRM core DMA tracking and drop redundant code
   . Removes private DMA tracking, exynos_drm_gem_prime_import(), and obsolete iommu_dma_init_domain() stub.
 - Reduce duplication and tighten local scope
   . Replaces MAX_FB_BUFFER with DRM_FORMAT_MAX_PLANES.
   . Drops redundant exynos_drm_gem.size and internalizes local-only helpers.
 
 Bug fix for Exynos fbdev behavior
 - Fix screen_buffer offset handling
   . Keeps screen_buffer at framebuffer base and avoids applying scanout offset.
   . Includes Fixes and stable Cc for backporting.
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Merge tag 'exynos-drm-next-for-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next

New feature and cleanup for Exynos fbdev
- Move fbdev emulation to DRM client buffers
  . Reuses standard ADDFB2/GEM paths and simplifies cleanup.
- Use DRM format helpers for geometry and size
  . Applies 4CC-based format/pitch/size calculation with stronger checks and PAGE_SIZE alignment.
  . Sets screen_size and fix.smem_len from actual allocated size.

Exynos DRM internal cleanup
- Adopt DRM core DMA tracking and drop redundant code
  . Removes private DMA tracking, exynos_drm_gem_prime_import(), and obsolete iommu_dma_init_domain() stub.
- Reduce duplication and tighten local scope
  . Replaces MAX_FB_BUFFER with DRM_FORMAT_MAX_PLANES.
  . Drops redundant exynos_drm_gem.size and internalizes local-only helpers.

Bug fix for Exynos fbdev behavior
- Fix screen_buffer offset handling
  . Keeps screen_buffer at framebuffer base and avoids applying scanout offset.
  . Includes Fixes and stable Cc for backporting.

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Inki Dae <inki.dae@samsung.com>
Link: https://patch.msgid.link/20260521143624.56906-1-inki.dae@samsung.com

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This commit is contained in:

Dave Airlie 2026-05-26 10:54:30 +10:00

parent f12f8a5780 b9bb45aeaf

commit a97a23ce34

11 changed files with 103 additions and 129 deletions

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15

drivers/gpu/drm/exynos/exynos_drm_dma.c

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1

drivers/gpu/drm/exynos/exynos_drm_drv.c

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9

drivers/gpu/drm/exynos/exynos_drm_drv.h

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9

drivers/gpu/drm/exynos/exynos_drm_fb.c

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10

drivers/gpu/drm/exynos/exynos_drm_fb.h

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113

drivers/gpu/drm/exynos/exynos_drm_fbdev.c

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13

drivers/gpu/drm/exynos/exynos_drm_g2d.c

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50

drivers/gpu/drm/exynos/exynos_drm_gem.c

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8

drivers/gpu/drm/exynos/exynos_drm_gem.h

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2

drivers/gpu/drm/exynos/exynos_drm_ipp.c

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4

drivers/gpu/drm/exynos/exynos_drm_ipp.h

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