Quoting Chris Wilson (2019-11-13 18:06:33)
> fbdev uses the physical address of our framebuffer for its fb_mmap()
> routine. While we need to adapt this address for the new io BAR, we have
> to fix v5.4 first! The simplest fix is to restore the smem back to v5.4
> and we will then probably have to implement our fbops->fb_mmap() call
> back to handle local memory.
Reported-by: Neil MacLeod <[email protected]>
> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=112256
> Fixes: 5f889b9a61dd ("drm/i915: Disregard drm_mode_config.fb_base")
> Signed-off-by: Chris Wilson <[email protected]>
> Cc: Daniel Vetter <[email protected]>
> Cc: Maarten Lankhorst <[email protected]>
Tested-by: Neil MacLeod <[email protected]>
-Chris
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