drm/etnaviv: switch MMU page tables to writecombine memory

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We are likely to write multiple page entries at once and already ensure
proper write buffer flushing before GPU submit, so this improves CPU
time usage in the submit path without any downsides.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Philipp Zabel <p.zabel@pengutronix.de>

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Lucas Stach 2018-04-17 12:00:46 +02:00

parent a98b1e7808

commit 1af998b27c

2 changed files with 49 additions and 59 deletions

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34

drivers/gpu/drm/etnaviv/etnaviv_iommu.c

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74

drivers/gpu/drm/etnaviv/etnaviv_iommu_v2.c

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