• Vineet Gupta's avatar
    ARC: smp-boot: Decouple Non masters waiting API from jump to entry point · 8cb6045e
    Vineet Gupta authored
    
    [ Upstream commit bf02454a ]
    
    For run-on-reset SMP configs, non master cores call a routine which
    waits until Master gives it a "go" signal (currently using a shared
    mem flag). The same routine then jumps off the well known entry point of
    all non Master cores i.e. @first_lines_of_secondary
    
    This patch moves out the last part into one single place in early boot
    code.
    
    This is better in terms of absraction (the wait API only waits) and
    returns, leaving out the "jump off to" part.
    
    In actual implementation this requires some restructuring of the early
    boot code as well as Master now jumps to BSS setup explicitly,
    vs. falling thru into it before.
    
    Technically this patch doesn't cause any functional change, it just
    moves the ugly #ifdef'ry from assembly code to "C"
    Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
    Signed-off-by: default avatarSasha Levin <alexander.levin@verizon.com>
    Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
    8cb6045e
smp.c 8.73 KB