target/mips32: optimize pracc access
Update mips32 instructions, add barrier and sync related insts.
Add SYNC and barrier instruction blocks for memory access safety.
These instructions are not supported on Lexra and/or MIPSr1 CPUs,
detections were added and they will be executed conditionally.
Rework mips32_pracc_read/write_regs function.
Checkpatch-ignore: MACRO_ARG_REUSE
Change-Id: Ib14112f37ff1f060b1633df73d671a6b09bb2178
Signed-off-by: Walter Ji <walter.ji@oss.cipunited.com>
Reviewed-on: https://review.openocd.org/c/openocd/+/7865
Tested-by: jenkins
Reviewed-by: Oleksij Rempel <linux@rempel-privat.de>
Reviewed-by: Antonio Borneo <borneo.antonio@gmail.com>