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(root)/trunk/kernel/generic/src/ipc/ipc.c @ 4670 – Rev 3184

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Rev	Age	Author	Path	Log message
3184	5820 d 6 h	jermar	/trunk/kernel/generic/src/ipc/	Fix a scary two-year old bug: do not attempt to initialize a call structure if its allocation failed.
3104	5836 d 15 h	svoboda	/trunk/kernel/	Declare arguments for memstr.h operations as pointers instead of uintptr_t.
3090	5839 d 7 h	decky	/trunk/kernel/generic/src/ipc/	revert coding style change
3054	5839 d 7 h	decky	/trunk/kernel/generic/src/ipc/	proper printf formatting
3020	5845 d 1 h	jermar	/trunk/kernel/generic/	Turn phone->lock into mutex.
2802	5898 d 11 h	jermar	/trunk/kernel/generic/	Fix initialization of answerbox->task in ipc_answerbox_init. Contributed by Jiri Svoboda.
2662	6002 d 1 h	jermar	/trunk/	Add support for IPC_M_DATA_READ calls.
2637	6021 d 2 h	cejka	/trunk/	Extended IPC_M_CONNECT_TO_ME to use 3 user defined parameters. Phone identifier is passed in ARG5.
2623	6031 d 8 h	jermar	/trunk/kernel/generic/	Introduce the IPC_FF_ROUTE_FROM_ME forwarding flag.
2622	6031 d 8 h	jermar	/trunk/	Add mode argument to IPC forward. This argument can be used to modify the way forward behaves.
2601	6044 d 5 h	jermar	/trunk/kernel/generic/src/ipc/	Fix and improve two IPC related comments.
2494	6167 d 2 h	jermar	/trunk/kernel/generic/	Implement a new mechanism for copying data between two address spaces based on IPC. New system method IPC_M_DATA_SEND is introduced. The implementation is generic and does not make use of any possible architecture optimizations such as direct copy from one address space to another.
2472	6191 d 2 h	jermar	/trunk/kernel/generic/src/ipc/	Some left-over stuff from the last commit (IPC cleanup and improved comments.)
2471	6191 d 3 h	jermar	/trunk/	Greatly improve comments in the IPC layer. Now I think I finally start to understand our IPC internals :-)
2310	6232 d 3 h	jermar	/trunk/kernel/generic/	Cleanup the waitq_wakeup() interface. Replace numeric constants (i.e. 0) and boolean constants (i.e. false) with more readable WAKEUP_FIRST. Also change the type of the second argument of waitq_wakeup() to a newly introduced type wakeup_mode_t. Fix behaviour of waitq_wakeup() in case that WAKEUP_ALL semantics is required but no threads are sleeping in the wait queue. This is a similar fix to that of Jan Hudecek committed in the RCU branch, but, IMHO, is more straightforward and also doesn't eat up previous missed wakeups.
2216	6262 d 2 h	decky	/trunk/	make thread ID 64 bit (task ID is 64 bit already) cleanup thread syscalls
2183	6264 d 6 h	jermar	/trunk/kernel/generic/	Continue to de-oversynchronize the kernel. - replace as->refcount with an atomic counter; accesses to this reference counter are not to be done when the as->lock mutex is held; this gets us rid of mutex_lock_active(); Remove the possibility of a deadlock between TLB shootdown and asidlock. - get rid of mutex_lock_active() on as->lock - when locking the asidlock spinlock, always do it conditionally and with preemption disabled; in the unsuccessful case, enable interrupts and try again - there should be no deadlock between TLB shootdown and the as->lock mutexes - PLEASE REVIEW !!! Add DEADLOCK_PROBE's to places where we have spinlock_trylock() loops.
2071	6342 d 2 h	jermar	/trunk/	(c) versus (C)
1933	6434 d 1 h	jermar	/trunk/kernel/generic/	Implement efficient IPC notification cleanup.
1923	6435 d 1 h	jermar	/trunk/	Replace the old IRQ dispatcher and IPC notifier with new implementation. Note that all architectures except for sparc64 are now broken and don't even compile.

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