MIPS: OCTEON: Save and restore CP2 SHA3 state

Allocate new save space, and then save/restore the registers if
OCTEON III.

Signed-off-by: David Daney <david.daney@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@auriga.com>
Cc: linux-mips@linux-mips.org
Cc: linux-kernel@vger.kernel.org
Patchwork: https://patchwork.linux-mips.org/patch/8935/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h
index be903acf4fe4..b5dcbee01fd7 100644
--- a/arch/mips/include/asm/processor.h
+++ b/arch/mips/include/asm/processor.h
@@ -205,6 +205,8 @@ struct octeon_cop2_state {
         unsigned long   cop2_gfm_poly;
         /* DMFC2 rt, 0x025A; DMFC2 rt, 0x025B - Pass2 */
         unsigned long   cop2_gfm_result[2];
+        /* DMFC2 rt, 0x24F, DMFC2 rt, 0x50, OCTEON III */
+        unsigned long   cop2_sha3[2];
 };
 #define COP2_INIT                                               \
         .cp2                    = {0,},