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    • Andy Lutomirski's avatar
      uvesafb: Clean up MTRR code · 63e28a7a
      Andy Lutomirski authored
      
      The old code allowed very strange memory types.  Now it works like
      all the other video drivers: ioremap_wc is used unconditionally,
      and MTRRs are set if PAT is unavailable (unless MTRR is disabled
      by a module parameter).
      
      UC, WB, and WT support is gone.  If there are MTRR conflicts that prevent
      addition of a WC MTRR, adding a non-conflicting MTRR is pointless; it's
      better to just turn off MTRR support entirely.
      
      As an added bonus, any MTRR added is freed on unload.
      Reviewed-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
      Signed-off-by: default avatarAndy Lutomirski <luto@amacapital.net>
      Signed-off-by: default avatarDave Airlie <airlied@redhat.com>
      63e28a7a
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