drm/panfrost: Add cache/TLB flush before switching address space

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It's not entirely clear if this is required, but add a flush of GPU caches
and TLBs before we change an address space to new page tables.

Fixes: 7282f7645d ("drm/panfrost: Implement per FD address spaces")
Cc: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Rob Herring <robh@kernel.org>
Acked-by: Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Steven Price <steven.price@arm.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190826223317.28509-7-robh@kernel.org

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This commit is contained in:

Rob Herring 2019-08-26 17:33:15 -05:00

parent 86df65f39b

commit 5924d40958

1 changed files with 2 additions and 0 deletions

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drivers/gpu/drm/panfrost/panfrost_mmu.c

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