Marius Hillenbrand <mhil...@linux.ibm.com> writes:
z13: introduced the vector extensions
PoP: Vector Facility for z/Architecture
Linux: vx / HWCAP_S390_VX
z14:
Vector-Enhancements Facility 1
vxe / HWCAP_S390_VXE
z15:
Vector-Enhancements Facility 2 (adds VLERG and VSTERG, among others)
vxe2 / HWCAP_S390_VXRS_EXT2
You forgot to mention z16? :-)
IIRC, your config* patches added z13 by grepping /proc/cpuinfo. It did
not add z14 or z15. Any particular reason for that? I think it makes
sense to have accurate recognition code in GMP, even if we then treat
the CPUs exactly the same.
BTW, it turns out that the system I amplaying with is a z15.
Here is /proc/cpuinfo (cut after one CPU):
vendor_id : IBM/S390
# processors : 2
bogomips per cpu: 3241.00
max thread id : 0
features : esan3 zarch stfle msa ldisp eimm dfp edat etf3eh highgprs
te vx vxd vxe gs vxe2 vxp sort dflt sie
facilities : 0 1 2 3 4 6 7 8 9 10 12 14 15 16 17 18 19 20 21 22 23 24
25 26 27 28 30 31 32 33 34 35 36 37 38 40 41 42 43 44 45 46 47 48 49 50 51 52
53 54 55 57 58 59 60 61 73 74 75 76 77 80 81 82 128 129 130 131 133 134 135 146
147 148 150 151 152 155 156 168
cache0 : level=1 type=Data scope=Private size=128K line_size=256
associativity=8
cache1 : level=1 type=Instruction scope=Private size=128K
line_size=256 associativity=8
cache2 : level=2 type=Data scope=Private size=4096K line_size=256
associativity=8
cache3 : level=2 type=Instruction scope=Private size=4096K
line_size=256 associativity=8
cache4 : level=3 type=Unified scope=Shared size=262144K
line_size=256 associativity=32
cache5 : level=4 type=Unified scope=Shared size=983040K
line_size=256 associativity=60
processor 0: version = FF, identification = 100003, machine = 8561
processor 1: version = FF, identification = 200003, machine = 8561
cpu number : 0
physical id : 0
core id : 0
book id : 0
drawer id : 0
dedicated : 0
address : 0
siblings : 1
cpu cores : 1
version : FF
identification : 100003
machine : 8561
cpu MHz dynamic : 5200
cpu MHz static : 5200
I measure the actual clock to 3800 MHz, not 5200.
--
Torbjörn
Please encrypt, key id 0xC8601622
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