4 Commits

Author	SHA1	Message	Date
Vineet Gupta	5793e273a1	ARC: intc: split into ARCompact ISA specific, common bits ... Signed-off-by: Vineet Gupta <vgupta@synopsys.com>	2015-06-19 18:09:40 +05:30
Vineet Gupta	5a343b9fe2	ARC: entry.S: [arcompact] simplify SWITCH_TO_KERNEL_STK ... 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 <vgupta@synopsys.com>	2015-06-19 18:09:40 +05:30
Vineet Gupta	62fb64034d	ARC: entry.S: micro-optimize Trap handler ... 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 <vgupta@synopsys.com>	2015-06-19 18:09:39 +05:30
Vineet Gupta	6d1a20b1d2	ARC: entry.S: split into ARCompact ISA specific, common bits ... Signed-off-by: Vineet Gupta <vgupta@synopsys.com>	2015-06-19 18:09:38 +05:30