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Commit Graph

Author	SHA1	Message	Date
Ehmry -	6e9f9ce3a8	Core includes untangling Express convoluted include walks directly in code, do not hide them in build scripts.	2019-10-04 00:52:02 +02:00
Stefan Kalkowski	3725e91603	hw: implement power-saving kernel lock for ARM smp Thanks to former work of Martin Stein this commit finally incorporates a non-spinning kernel lock on multi-core ARM platforms. Fix #1313	2019-04-01 19:33:47 +02:00
Stefan Kalkowski	8e13b376b0	hw: improve cross-cpu synchronization This commit addresses several multiprocessing issues in base-hw: * it reworks cross-cpu maintainance work for TLB invalidation by introducing a generic Inter_processor_work and removes the so called Cpu_domain_update * thereby it solves the cross-cpu thread destruction, when the corresponding thread is active on another cpu (fix #3043) * it adds the missing TLB shootdown for x86 (fix #3042) * on ARM it removes the TLB shootdown via IPIs, because this is not needed on the multiprocessing ARM platforms we support * it enables the per-cpu initialization of the kernel's cpu objects, which means those object initialization is executed by the proper cpu * it rollbacks prior decision to make multiprocessing an aspect, but puts back certain 'smp' mechanisms (like cross-cpu lock) into the generic code base for simplicity reasons	2019-01-07 12:25:44 +01:00

Author

SHA1

Message

Date

Ehmry -

6e9f9ce3a8

Core includes untangling

Express convoluted include walks directly in code, do not hide them
in build scripts.

2019-10-04 00:52:02 +02:00

Stefan Kalkowski

3725e91603

hw: implement power-saving kernel lock for ARM smp

Thanks to former work of Martin Stein this commit finally incorporates a
non-spinning kernel lock on multi-core ARM platforms.

Fix #1313

2019-04-01 19:33:47 +02:00

Stefan Kalkowski

8e13b376b0

hw: improve cross-cpu synchronization

This commit addresses several multiprocessing issues in base-hw:

* it reworks cross-cpu maintainance work for TLB invalidation by
  introducing a generic Inter_processor_work and removes the so
  called Cpu_domain_update
* thereby it solves the cross-cpu thread destruction, when the
  corresponding thread is active on another cpu (fix #3043)
* it adds the missing TLB shootdown for x86 (fix #3042)
* on ARM it removes the TLB shootdown via IPIs, because this
  is not needed on the multiprocessing ARM platforms we support
* it enables the per-cpu initialization of the kernel's cpu
  objects, which means those object initialization is executed
  by the proper cpu
* it rollbacks prior decision to make multiprocessing an aspect,
  but puts back certain 'smp' mechanisms (like cross-cpu lock)
  into the generic code base for simplicity reasons

2019-01-07 12:25:44 +01:00

3 Commits