• Eric Anholt's avatar
    drm/v3d: Introduce a new DRM driver for Broadcom V3D V3.x+ · 57692c94
    Eric Anholt authored
    This driver will be used to support Mesa on the Broadcom 7268 and 7278
    platforms.
    
    V3D 3.3 introduces an MMU, which means we no longer need CMA or vc4's
    complicated CL/shader validation scheme.  This massively changes the
    GEM behavior, so I've forked off to a new driver.
    
    v2: Mark SUBMIT_CL as needing DRM_AUTH.  coccinelle fixes from kbuild
        test robot. Drop personal git link from MAINTAINERS.  Don't
        double-map dma-buf imported BOs.  Add kerneldoc about needing MMU
        eviction.  Drop prime vmap/unmap stubs.  Delay mmap offset setup
        to mmap time.  Use drm_dev_init instead of _alloc.  Use
        ktime_get() for wait_bo timeouts.  Drop drm_can_sleep() usage,
        since we don't modeset.  Switch page tables back to WC (debug
        change to coherent had slipped in).  Switch
        drm_gem_object_unreference_unlocked() to
        drm_gem_object_put_unlocked().  Simplify overflow mem handling by
        not sharing overflow mem between jobs.
    v3: no changes
    v4: align submit_cl to 64 bits (review by airlied), check zero flags in
        other ioctls.
    Signed-off-by: default avatarEric Anholt <eric@anholt.net>
    Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v4)
    Acked-by: Dave Airlie <airlied@linux.ie> (v3, requested submit_cl change)
    Link: https://patchwork.freedesktop.org/patch/msgid/20180430181058.30181-3-eric@anholt.net
    57692c94
v3d_irq.c 5.29 KB