drm/i915/dsb: Fix DSB command buffer size checks

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free_pos is in dwords, DSB_BUF_SIZE in bytes. Directly
comparing the two is nonsense. Fix it up, and make sure
we also account for the 8byte alignment requirement for
each instruction, and also assume that each instruction
normally eats two dwords.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221216003810.13338-5-ville.syrjala@linux.intel.com
Reviewed-by: Animesh Manna <animesh.manna@intel.com>

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Ville Syrjälä 2022-12-16 02:38:01 +02:00

parent 3229319e44

commit 488dd07583

1 changed files with 2 additions and 2 deletions

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

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