powerpc/64s: Add EX_SIZE definition for paca exception save areas

Rather than open-coding it 4 times.

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
[mpe: Move __ASSEMBLY__ guards into head-64.h where they're really needed]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This commit is contained in:
Nicholas Piggin 2017-05-21 23:15:46 +10:00 • committed by Michael Ellerman
commit 8c38851415
3 changed files with 14 additions and 4 deletions