OpenCloudOS-Kernel

Commit Graph

Author	SHA1	Message	Date
Martin Schwidefsky	8a88367088	[S390] Bogomips calculation for 64 bit. The bogomips calculation triggered via reading from /proc/cpuinfo can return incorrect values if the qrnnd assembly is called with a pointer in %r2 with any of the upper 32 bits set. Fix this by using 64 bit division / remainder operation provided by gcc instead of calling the assembly. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	2007-07-10 11:24:47 +02:00
Martin Schwidefsky	31ee4b2f40	[S390] Calibrate delay and bogomips. Preset the bogomips number to the cpu capacity value reported by store system information in SYSIB 1.2.2. This value is constant for a particular machine model and can be used to determine relative performance differences between machines. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>	2007-02-05 21:18:31 +01:00

Author

SHA1

Message

Date

Martin Schwidefsky

8a88367088

[S390] Bogomips calculation for 64 bit.

The bogomips calculation triggered via reading from /proc/cpuinfo
can return incorrect values if the qrnnd assembly is called with a
pointer in %r2 with any of the upper 32 bits set.
Fix this by using 64 bit division / remainder operation provided by
gcc instead of calling the assembly.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2007-07-10 11:24:47 +02:00

Martin Schwidefsky

31ee4b2f40

[S390] Calibrate delay and bogomips.

Preset the bogomips number to the cpu capacity value reported by
store system information in SYSIB 1.2.2. This value is constant
for a particular machine model and can be used to determine
relative performance differences between machines.

Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>

2007-02-05 21:18:31 +01:00

2 Commits