Hi, > > So I'd like to push patches 1+2 to -fixes and sort everything else later > > in -next. OK? > > OK with me. Done. >> [ context: why shmem helpers use pgprot_writecombine + pgprot_decrypted? >> we get conflicting mappings because of that, linear kernel >> map vs. gem object vmap/mmap ] > Do we have any idea what drivers are actually using > write-combine and decrypted? drivers/gpu/drm# find -name Kconfig* -print | xargs grep -l DRM_GEM_SHMEM_HELPER ./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 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
