From: "Steven J. Hill" <sjhill@xxxxxxxx> This set of patches is to support building a pure microMIPS kernel image using only instruction from the microMIPS ISA. The result is a kernel binary reduction of more than 20% and an increase in the speed of execution due to the smaller and faster instructions. Steven J. Hill (9): MIPS: Add microMIPS breakpoints and DSP support. MIPS: Add support for microMIPS instructions. MIPS: Add support for microMIPS exception handling. MIPS: Support microMIPS/MIPS16e handling of delay slots. MIPS: Support microMIPS/MIPS16e unaligned accesses. MIPS: Support microMIPS/MIPS16e floating point. MIPS: Work-around microMIPS GNU assembler bug. MIPS: Fixup ordering of micro assembler instructions. MIPS: Add microMIPS configuration option. arch/mips/Kconfig | 10 + arch/mips/Makefile | 1 + arch/mips/configs/sead3_defconfig | 5 +- arch/mips/configs/sead3micro_defconfig | 1771 ++++++++++++++++++++++++++++++++ arch/mips/include/asm/branch.h | 33 +- arch/mips/include/asm/break.h | 11 +- arch/mips/include/asm/dsp.h | 4 + arch/mips/include/asm/fpu_emulator.h | 7 + arch/mips/include/asm/futex.h | 4 + arch/mips/include/asm/inst.h | 882 +++++++++++++++- arch/mips/include/asm/mipsregs.h | 359 +++---- arch/mips/include/asm/paccess.h | 2 + arch/mips/include/asm/stackframe.h | 12 +- arch/mips/include/asm/uaccess.h | 14 +- arch/mips/include/asm/uasm.h | 103 +- arch/mips/kernel/branch.c | 183 +++- arch/mips/kernel/cpu-probe.c | 3 + arch/mips/kernel/genex.S | 82 +- arch/mips/kernel/proc.c | 9 +- arch/mips/kernel/process.c | 101 ++ arch/mips/kernel/scall32-o32.S | 22 +- arch/mips/kernel/smtc-asm.S | 3 + arch/mips/kernel/traps.c | 375 +++++-- arch/mips/kernel/unaligned.c | 1496 +++++++++++++++++++++++---- arch/mips/math-emu/cp1emu.c | 766 ++++++++++++-- arch/mips/math-emu/dsemul.c | 40 +- arch/mips/mm/tlbex.c | 21 + arch/mips/mm/uasm.c | 214 +++- arch/mips/mti-sead3/sead3-init.c | 48 + 29 files changed, 5768 insertions(+), 813 deletions(-) create mode 100644 arch/mips/configs/sead3micro_defconfig -- 1.7.10
