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Commit 7dd380c3 authored by Vineet Gupta's avatar Vineet Gupta
Browse files

ARC: boot log: print Action point details 



This now prints the number of action points {2,4,8} and {min,full}
targets supported.

Signed-off-by: default avatarVineet Gupta <vgupta@synopsys.com>
parent 97e98132

arch/arc/include/asm/arcregs.h

+9 −1
Original line number Diff line number Diff line
@@ -216,6 +216,14 @@ struct bcr_fp_arcv2 { 
#endif

};



struct bcr_actionpoint {

#ifdef CONFIG_CPU_BIG_ENDIAN

	unsigned int pad:21, min:1, num:2, ver:8;

#else

	unsigned int ver:8, num:2, min:1, pad:21;

#endif

};



#include <soc/arc/timers.h>



struct bcr_bpu_arcompact {
@@ -302,7 +310,7 @@ struct cpuinfo_arc { 
	struct {

		unsigned int swap:1, norm:1, minmax:1, barrel:1, crc:1, swape:1, pad1:2,

			     fpu_sp:1, fpu_dp:1, dual:1, dual_enb:1, pad2:4,

			     debug:1, ap:1, smart:1, rtt:1, pad3:4,

			     ap_num:4, ap_full:1, smart:1, rtt:1, pad3:1,

			     timer0:1, timer1:1, rtc:1, gfrc:1, pad4:4;

	} extn;

	struct bcr_mpy extn_mpy;

arch/arc/kernel/setup.c

+15 −7
Original line number Diff line number Diff line
@@ -123,6 +123,7 @@ static void read_arc_build_cfg_regs(void) 
	struct cpuinfo_arc *cpu = &cpuinfo_arc700[smp_processor_id()];

	const struct id_to_str *tbl;

	struct bcr_isa_arcv2 isa;

	struct bcr_actionpoint ap;



	FIX_PTR(cpu);
@@ -208,8 +209,11 @@ static void read_arc_build_cfg_regs(void) 
		}

	}



	READ_BCR(ARC_REG_AP_BCR, bcr);

	cpu->extn.ap = bcr.ver ? 1 : 0;

	READ_BCR(ARC_REG_AP_BCR, ap);

	if (ap.ver) {

		cpu->extn.ap_num = 2 << ap.num;

		cpu->extn.ap_full = !!ap.min;

	}



	READ_BCR(ARC_REG_SMART_BCR, bcr);

	cpu->extn.smart = bcr.ver ? 1 : 0;
@@ -217,8 +221,6 @@ static void read_arc_build_cfg_regs(void) 
	READ_BCR(ARC_REG_RTT_BCR, bcr);

	cpu->extn.rtt = bcr.ver ? 1 : 0;



	cpu->extn.debug = cpu->extn.ap | cpu->extn.smart | cpu->extn.rtt;



	READ_BCR(ARC_REG_ISA_CFG_BCR, isa);



	/* some hacks for lack of feature BCR info in old ARC700 cores */
@@ -337,11 +339,17 @@ static char *arc_extn_mumbojumbo(int cpu_id, char *buf, int len) 
			       IS_AVAIL1(cpu->extn.fpu_sp, "SP "),

			       IS_AVAIL1(cpu->extn.fpu_dp, "DP "));



	if (cpu->extn.debug)

		n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s%s\n",

			       IS_AVAIL1(cpu->extn.ap, "ActionPoint "),

	if (cpu->extn.ap_num | cpu->extn.smart | cpu->extn.rtt) {

		n += scnprintf(buf + n, len - n, "DEBUG\t\t: %s%s",

			       IS_AVAIL1(cpu->extn.smart, "smaRT "),

			       IS_AVAIL1(cpu->extn.rtt, "RTT "));

		if (cpu->extn.ap_num) {

			n += scnprintf(buf + n, len - n, "ActionPoint %d/%s",

				       cpu->extn.ap_num,

				       cpu->extn.ap_full ? "full":"min");

		}

		n += scnprintf(buf + n, len - n, "\n");

	}



	if (cpu->dccm.sz || cpu->iccm.sz)

		n += scnprintf(buf + n, len - n, "Extn [CCM]\t: DCCM @ %x, %d KB / ICCM: @ %x, %d KB\n",