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Commit 97e98132 authored by Vineet Gupta's avatar Vineet Gupta
Browse files

ARCv2: boot log: BPU return stack depth 



Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent bfeffd15

arch/arc/include/asm/arcregs.h

+1 −1
Original line number Diff line number Diff line
@@ -283,7 +283,7 @@ struct cpuinfo_arc_cache { 
};



struct cpuinfo_arc_bpu {

	unsigned int ver, full, num_cache, num_pred;

	unsigned int ver, full, num_cache, num_pred, ret_stk;

};



struct cpuinfo_arc_ccm {

arch/arc/kernel/setup.c

+3 −2
Original line number Diff line number Diff line
@@ -195,6 +195,7 @@ static void read_arc_build_cfg_regs(void) 
		cpu->bpu.full = bpu.ft;

		cpu->bpu.num_cache = 256 << bpu.bce;

		cpu->bpu.num_pred = 2048 << bpu.pte;

		cpu->bpu.ret_stk = 4 << bpu.rse;



		if (cpu->core.family >= 0x54) {

			unsigned int exec_ctrl;
@@ -299,10 +300,10 @@ static char *arc_cpu_mumbojumbo(int cpu_id, char *buf, int len) 


	if (cpu->bpu.ver)

		n += scnprintf(buf + n, len - n,

			      "BPU\t\t: %s%s match, cache:%d, Predict Table:%d",

			      "BPU\t\t: %s%s match, cache:%d, Predict Table:%d Return stk: %d",

			      IS_AVAIL1(cpu->bpu.full, "full"),

			      IS_AVAIL1(!cpu->bpu.full, "partial"),

			      cpu->bpu.num_cache, cpu->bpu.num_pred);

			      cpu->bpu.num_cache, cpu->bpu.num_pred, cpu->bpu.ret_stk);



	if (is_isa_arcv2()) {

		struct bcr_lpb lpb;