diff options
author | Russ Anderson <rja@sgi.com> | 2007-10-16 17:02:38 -0500 |
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committer | Tony Luck <tony.luck@intel.com> | 2007-11-09 13:05:30 -0800 |
commit | b8de471f37dcafc8892a2e58c80764d7af221715 (patch) | |
tree | 47b2055ce6c794ceb461741449d714d3d03e6df1 /arch | |
parent | c9d059def234d7cd60809a6a122102ff96d2d0ca (diff) | |
download | linux-stable-b8de471f37dcafc8892a2e58c80764d7af221715.tar.gz linux-stable-b8de471f37dcafc8892a2e58c80764d7af221715.tar.bz2 linux-stable-b8de471f37dcafc8892a2e58c80764d7af221715.zip |
[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: Russ Anderson <rja@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>
Diffstat (limited to 'arch')
-rw-r--r-- | arch/ia64/kernel/palinfo.c | 91 |
1 files changed, 79 insertions, 12 deletions
diff --git a/arch/ia64/kernel/palinfo.c b/arch/ia64/kernel/palinfo.c index 6ef6ffb943a0..396004e8cd14 100644 --- a/arch/ia64/kernel/palinfo.c +++ b/arch/ia64/kernel/palinfo.c @@ -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; + 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); - 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"): ""); - } return p - page; } |