Implement global TLB flushing for MN10300. This will be used by the AM34 which
is SMP capable.
Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Make controllable the use of the PIDR register to mark TLB entries as belonging
to particular processes.
Signed-off-by: Akira Takeuchi <takeuchi.akr@jp.panasonic.com>
Signed-off-by: Kiyoshi Owada <owada.kiyoshi@jp.panasonic.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Rename __flush_tlb*() to local_flush_tlb*() as it's more appropriate, and ready
to differentiate local from global TLB flushes when SMP is introduced.
Whilst we're at it, get rid of __flush_tlb_global() and make
local_flush_tlb_page() take an mm_struct pointer rather than VMA pointer.
Signed-off-by: David Howells <dhowells@redhat.com>
gcc 4.2.1 for MN10300 is more agressive than the older gcc in
reordering/moving other insns between an insn that sets flags and an insn
that uses those flags. This leads to trouble with asm statements which
are missing an explicit "cc" clobber. This patch adds the explicit "cc"
clobber to asm statements which do indeed clobber the condition flags.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
