drm/vc4: Move LBM creation out of vc4_plane_mode_set()

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We are about to use vc4_plane_mode_set() in the async check path, and
async updates require that LBM size stay the same since they reuse the
LBM from the previous state. So we definitely don't want to allocate a
new LBM region that we know for sure will be free right away.

Move the LBM allocation out of vc4_plane_mode_set() and call the new
function (vc4_plane_update_lbm()) from vc4_plane_atomic_check().

Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20181130090254.594-2-boris.brezillon@bootlin.com

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This commit is contained in:

Boris Brezillon 2018-11-30 10:02:50 +01:00

parent b2e554d4df

commit 0a038c1c29

2 changed files with 54 additions and 28 deletions

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1

drivers/gpu/drm/vc4/vc4_drv.h

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81

drivers/gpu/drm/vc4/vc4_plane.c

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