15 Dec
2009
15 Dec
'09
6:14 p.m.
Sanjeev Premi wrote:
Each call to get_cpu_rev() leads to repetitive execution of code to detect the cpu revision.
This patchset ensures that mechanism to detect revision is not executed each time; instead a stored value is returned.
Since, revision info is needed in s_init(), the function to identify cpu revision needs to be called twice. At the moment, it is necessary/ unavoidable.
Is there some other reason to read this register only once? This function is not used frequently and i do not think the complexity of optimizing is necessary.
Tom