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* [newlib-cygwin] fhandler_proc.cc(format_proc_cpuinfo): fix AMD physical cores count
@ 2019-10-07 19:55 Ken Brown
0 siblings, 0 replies; only message in thread
From: Ken Brown @ 2019-10-07 19:55 UTC (permalink / raw)
To: cygwin-cvs
https://sourceware.org/git/gitweb.cgi?p=newlib-cygwin.git;h=7a0496f78f60d43cf9545a794cbf8c00d7bb8e02
commit 7a0496f78f60d43cf9545a794cbf8c00d7bb8e02
Author: Brian Inglis <Brian.Inglis@SystematicSW.ab.ca>
Date: Mon Oct 7 10:23:00 2019 -0600
fhandler_proc.cc(format_proc_cpuinfo): fix AMD physical cores count
Fix AMD physical cores count documented as core_info low byte + 1.
Diff:
---
winsup/cygwin/fhandler_proc.cc | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/winsup/cygwin/fhandler_proc.cc b/winsup/cygwin/fhandler_proc.cc
index 78518ba..c94cde9 100644
--- a/winsup/cygwin/fhandler_proc.cc
+++ b/winsup/cygwin/fhandler_proc.cc
@@ -885,11 +885,10 @@ format_proc_cpuinfo (void *, char *&destbuf)
cpuid (&unused, &unused, &core_info, &unused, 0x80000008);
cpuid (&unused, &cus, &unused, &unused, 0x8000001e);
- siblings = (core_info & 0xff) + 1;
+ siblings = cpu_cores = (core_info & 0xff) + 1;
logical_bits = (core_info >> 12) & 0xf;
cus = ((cus >> 8) & 0x3) + 1;
ht_bits = mask_bits (cus);
- cpu_cores = siblings >> ht_bits;
}
else if (maxe >= 0x80000008)
{
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