kernel/arch/arc/include/asm/entry-compact.h, branch linux-4.2.y

ARC: intc: split into ARCompact ISA specific, common bits

2015-06-19T12:39:40Z

Signed-off-by: Vineet Gupta

ARC: entry.S: [arcompact] simplify SWITCH_TO_KERNEL_STK

2015-06-19T12:39:40Z

Previously this macro was overloaded with stack switching, saving SP at right slot in pt_regs, saving/setup of r25 and setting SP baseline to where pt_regs->sp is saved (vs. bottom of pt_regs) Now it only does SP switch, and leaves SP pointing to bottom of pt_regs. r25 saving is no longer done here to allow for future reordering of regfile in pt_regs w/o touching this macro Signed-off-by: Vineet Gupta

ARC: entry.S: micro-optimize Trap handler

2015-06-19T12:39:39Z

Elide the need to re-read ECR in Trap handler by ensuring that EXCEPTION_PROLOGUE does that at the very end just before returning to Trap handler ARCv2 EXCEPTION_PROLOGUE already did that, so same for ARcompact and the common trap handler adjusted to use cached ECR Signed-off-by: Vineet Gupta

ARC: entry.S: split into ARCompact ISA specific, common bits

2015-06-19T12:39:38Z

Signed-off-by: Vineet Gupta