drm/rockchip: avoid duplicate mappings for IOMMU devices

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If a buffer is allocated with alloc_kmap, then it is vmap'd on creation
and there is no reason to map it again in rockchip_gem_prime_vmap() when
the existing mapping can be used.

Signed-off-by: John Keeping <john@metanate.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20221110172415.2853420-1-john@metanate.com

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John Keeping 2022-11-10 17:24:14 +00:00 • committed by Heiko Stuebner

parent 582212ee16

commit 0020d4cfa3

1 changed files with 10 additions and 3 deletions

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drivers/gpu/drm/rockchip/rockchip_drm_gem.c

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