• Chris Metcalf's avatar
    tile: various console improvements · bda0f5ba
    Chris Metcalf authored
    This change improves and cleans up the tile console.
    
    - We enable HVC_IRQ support on tilegx, with the addition of a new
      Tilera hypervisor API for tilegx to allow a console IPI.  If IPI
      support is not available we fall back to the previous polling mode.
    
    - We simplify the earlyprintk code to use CON_BOOT and eliminate some
      of the other supporting earlyprintk code.
    
    - A new tile_console_write() primitive is used to send output to
      the console and is factored out of the hvc_tile driver.
      This lets us support a "sim_console" boot argument to allow using
      simulator hooks to send output to the "console" as a slightly
      faster alternative to emulating the hardware more directly.
    Signed-off-by: default avatarChris Metcalf <cmetcalf@tilera.com>
    Acked-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    bda0f5ba
setup.h 1.56 KB