On 01.04.2013 16:10, Francesco Lavra wrote: > On 04/01/2013 01:23 PM, Vladimir 'φ-coder/phcoder' Serbinenko wrote: >> get_time is wrong function for getting tsc. You should create a timer >> event with 10000 units (=1 ms) and in its callback increase millisecond >> counter. > > The problem is that such timer event would be machine-specific and > wouldn't work across different ARM SoCs. So the best place to handle > these machine-specific details would be in the platform firmware. > Unfortunately the EFI spec doesn't have a standard mechanism to retrieve > a timestamp counter, the most similar mechanism currently defined by the > spec is the get_time service.
Looks at events in EFI spec. You can define a periodic event with 1ms period and custom function as callback. Then you just need to count in this function. > > -- > Francesco > > _______________________________________________ > Grub-devel mailing list > Grub-devel@gnu.org > https://lists.gnu.org/mailman/listinfo/grub-devel
signature.asc
Description: OpenPGP digital signature
_______________________________________________ Grub-devel mailing list Grub-devel@gnu.org https://lists.gnu.org/mailman/listinfo/grub-devel
