drm/i915: Shrink the size of intel_remapped_plane_info struct

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Save some place in the GTT VMAs by using a u16 instead of unsigned int
to store the view dimensions. The maximum FB stride is 256kB which is
4096 tiles in the worst case (yf-tiles), the maximum FB height is 16k
pixels, which is 16384 tiles in the worst case (linear 4x1 tiled FB).

v2:
- Fix worst case tile height formula in commit log. (Ville)
- Add an assign_chk_ovf helper to simplify the related assignments.
v3:
- Enclose params of the assign_chk_ovf macro in parentheses.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210325214808.2071517-21-imre.deak@intel.com

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This commit is contained in:

Imre Deak 2021-03-25 23:48:03 +02:00

parent 23c87dc677

commit 1b6b032aa4

2 changed files with 19 additions and 8 deletions

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15

drivers/gpu/drm/i915/display/intel_fb.c

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12

drivers/gpu/drm/i915/i915_vma_types.h

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