Commit b8de471f authored by Russ Anderson's avatar Russ Anderson Committed by Tony Luck
Browse files

[IA64] Update printing of feature set bits 



Newer Itanium versions have added additional processor feature set
bits.  This patch prints all the implemented feature set bits.  Some
bit descriptions have not been made public.  For those bits, a generic
"Feature set X bit Y" message is printed.  Bits that are not implemented
will no longer be printed.

Signed-off-by: default avatarRuss Anderson <rja@sgi.com>
Signed-off-by: default avatarTony Luck <tony.luck@intel.com>
parent c9d059de

arch/ia64/kernel/palinfo.c

+79 −12
Original line number Diff line number Diff line
@@ -470,7 +470,7 @@ register_info(char *page) 
	return p - page;

}



static const char *proc_features[]={

static char *proc_features_0[]={		/* Feature set 0 */

	NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,

	NULL,NULL,NULL,NULL,NULL,NULL,NULL, NULL,NULL,

	NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,NULL,
@@ -502,25 +502,92 @@ static const char *proc_features[]={ 
	"Enable BERR promotion"

};



static char *proc_features_16[]={		/* Feature set 16 */

	"Disable ETM",

	"Enable ETM",

	"Enable MCA on half-way timer",

	"Enable snoop WC",

	NULL,

	"Enable Fast Deferral",

	"Disable MCA on memory aliasing",

	"Enable RSB",

	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,

	"DP system processor",

	"Low Voltage",

	"HT supported",

	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,

	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,

	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,

	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,

	NULL, NULL, NULL, NULL, NULL

};



static char **proc_features[]={

	proc_features_0,

	NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL,

	NULL, NULL, NULL, NULL,

	proc_features_16,

	NULL, NULL, NULL, NULL,

};



static char *

feature_set_info(char *page, u64 avail, u64 status, u64 control, u64 set)

{

	char *p = page;

	char **vf, **v;

	int i;



	vf = v = proc_features[set];

	for(i=0; i < 64; i++, avail >>=1, status >>=1, control >>=1) {



		if (!(control))		/* No remaining bits set */

			break;

		if (!(avail & 0x1))	/* Print only bits that are available */

			continue;

		if (vf)

			v = vf + i;

		if ( v && *v ) {

			p += sprintf(p, "%-40s : %s %s\n", *v,

				avail & 0x1 ? (status & 0x1 ?

						"On " : "Off"): "",

				avail & 0x1 ? (control & 0x1 ?

						"Ctrl" : "NoCtrl"): "");

		} else {

			p += sprintf(p, "Feature set %2ld bit %2d\t\t\t"

					" : %s %s\n",

				set, i,

				avail & 0x1 ? (status & 0x1 ?

						"On " : "Off"): "",

				avail & 0x1 ? (control & 0x1 ?

						"Ctrl" : "NoCtrl"): "");

		}

	}

	return p;

}



static int

processor_info(char *page)

{

	char *p = page;

	const char **v = proc_features;

	u64 avail=1, status=1, control=1;

	int i;

	u64 avail=1, status=1, control=1, feature_set=0;

	s64 ret;



	if ((ret=ia64_pal_proc_get_features(&avail, &status, &control)) != 0) return 0;



	for(i=0; i < 64; i++, v++,avail >>=1, status >>=1, control >>=1) {

		if ( ! *v ) continue;

		p += sprintf(p, "%-40s : %s%s %s\n", *v,

				avail & 0x1 ? "" : "NotImpl",

				avail & 0x1 ? (status & 0x1 ? "On" : "Off"): "",

				avail & 0x1 ? (control & 0x1 ? "Ctrl" : "NoCtrl"): "");

	do {

		ret = ia64_pal_proc_get_features(&avail, &status, &control,

						feature_set);

		if (ret < 0) {

			return p - page;

		}

		if (ret == 1) {

			feature_set++;

			continue;

		}



		p = feature_set_info(p, avail, status, control, feature_set);



		feature_set++;

	} while(1);



	return p - page;

}

include/asm-ia64/pal.h

+3 −2
Original line number Diff line number Diff line
@@ -1379,10 +1379,11 @@ struct pal_features_s; 
static inline s64

ia64_pal_proc_get_features (u64 *features_avail,

			    u64 *features_status,

			    u64 *features_control)

			    u64 *features_control,

			    u64 features_set)

{

	struct ia64_pal_retval iprv;

	PAL_CALL_PHYS(iprv, PAL_PROC_GET_FEATURES, 0, 0, 0);

	PAL_CALL_PHYS(iprv, PAL_PROC_GET_FEATURES, 0, features_set, 0);

	if (iprv.status == 0) {

		*features_avail   = iprv.v0;

		*features_status  = iprv.v1;

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