Hi,
Done.So I'd like to push patches 1+2 to -fixes and sort everything else laterOK with me.
in -next. OK?
drivers/gpu/drm# find -name Kconfig* -print | xargs grep -l DRM_GEM_SHMEM_HELPER[ context: why shmem helpers use pgprot_writecombine + pgprot_decrypted?Do we have any idea what drivers are actually using
we get conflicting mappings because of that, linear kernel
map vs. gem object vmap/mmap ]
write-combine and decrypted?
./lima/Kconfig
./tiny/Kconfig
./cirrus/Kconfig
./Kconfig
./panfrost/Kconfig
./udl/Kconfig
./v3d/Kconfig
./virtio/Kconfig
virtio needs cached.
cirrus+udl should be ok with cached too.
Not clue about the others (lima, tiny, panfrost, v3d). Maybe they use
write-combine just because this is what they got by default from
drm_gem_mmap_obj(). Maybe they actually need that. Trying to Cc:
maintainters (and drop stable@).
On decrypted: I guess that is only relevant for virtual machines, i.e.
virtio-gpu and cirrus?
virtio-gpu needs it, otherwise the host can't show the virtual display.
cirrus bounces everything via blits to vram, so it should be ok without
decrypted. I guess that implies we should make decrypted configurable.
cheers,
Gerd