| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 2557 |
6117 d 23 h |
jermar |
/trunk/kernel/generic/src/ipc/ |
Enable forwarding of IPC_M_AS_AREA_SEND, IPC_M_AS_AREA_RECV, IPC_M_DATA_SEND
calls. In order to prevent the forwarder from cloberring the call data (i.e.
source and destination address, and size) by treating these three methods as
immutable on forward. This feature is experimental, but has huge benefits in
that it can significantly reduce the amount of data sharing (the middle man need
not modify its address space mappings) or the amount of data copying (the middle
man need not receive the data from the sender and then resend them to the next
recipient). As a result, it can reduce N such calls for a communication channel
with N tasks along the way to 1 such call. |
|
| 2556 |
6118 d 1 h |
jermar |
/trunk/kernel/generic/ |
Rename as_get_size() to as_area_get_size() and add a doxygen comment. |
|
| 2494 |
6197 d 15 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. |
|
| 2471 |
6221 d 16 h |
jermar |
/trunk/ |
Greatly improve comments in the IPC layer.
Now I think I finally start to understand our IPC internals :-) |
|
| 2359 |
6252 d 1 h |
jermar |
/trunk/ |
Improve comments for the IPC subsystem.
Fix formatting and indentation. |
|
| 2098 |
6360 d 17 h |
decky |
/trunk/kernel/generic/ |
avoid conflict with potential keyword |
|
| 2071 |
6372 d 15 h |
jermar |
/trunk/ |
(c) versus (C) |
|
| 1923 |
6465 d 15 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. |
|
| 1875 |
6504 d 16 h |
jermar |
/trunk/ |
sparc64 work.
- Changes to enable userspace keyboard drivers.
- Fix z8530 initialization (i.e. clear any pending Tx interrupts).
- Experimental support for framebuffers with inverted colors. |
|
| 1787 |
6562 d 17 h |
decky |
/ |
move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot |
|
| 1780 |
6569 d 18 h |
jermar |
/kernel/trunk/ |
Replace old __u?? types with respective C99 variants (e.g. uint32_t, int64_t, uintptr_t etc.). |
|
| 1757 |
6583 d 23 h |
jermar |
/kernel/trunk/ |
Cleanup of comments. |
|
| 1702 |
6590 d 21 h |
cejka |
/kernel/trunk/ |
Kernel doxygen comments updated. |
|
| 1693 |
6592 d 19 h |
palkovsky |
/kernel/trunk/generic/ |
Modified ipc/irq to be able to pass up to 3 arguments to userspace. |
|
| 1669 |
6595 d 18 h |
palkovsky |
/kernel/trunk/generic/src/ipc/ |
Small consitency ipc update. |
|
| 1595 |
6598 d 4 h |
palkovsky |
/kernel/trunk/ |
Added kernel circular buffer klog.
Added automatic killing of tasks raising inappropriate exceptions.
TODO: Fix vsnprintf return value(and behaviour according to specs) and remove workaround in klog. |
|
| 1591 |
6598 d 13 h |
palkovsky |
/kernel/trunk/generic/ |
Small updates to ipc. |
|
| 1573 |
6599 d 18 h |
palkovsky |
/kernel/trunk/generic/ |
Renamed some things in IPC to be consistent.
Added ipc reporting to kconsole. |
|
| 1568 |
6599 d 20 h |
palkovsky |
/kernel/trunk/generic/ |
Slightly remodelled ipc hangups to facilitate correct cleanup.
Doc updates for frame allocator. |
|
| 1502 |
6601 d 23 h |
jermar |
/kernel/trunk/ |
Replace nonblocking argument of waitq_sleep_timeout with flags that specify mode of operation.
Now a flag can be used to specify interruptible sleep.
Modify waitq_interrupt_sleep() to only interrupt threads that used this flag.
O |
|
| 1461 |
6603 d 21 h |
palkovsky |
/kernel/trunk/generic/ |
Slightly changed semantics of AS_AREA_SEND/RECV. |
|
| 1434 |
6606 d 17 h |
palkovsky |
/kernel/trunk/ |
Added 'realtime' clock interface.
Added some asm macros as memory barriers.
Added drift computing for mips platform. |
|
| 1428 |
6607 d 13 h |
palkovsky |
/kernel/trunk/generic/ |
Added 256K slab, so that AMD can boot (until ELF loader is fixed).
Added AS_AREA_RECV so that the caller can receive AS_AREA. |
|
| 1417 |
6609 d 14 h |
jermar |
/kernel/trunk/generic/ |
Modify as_area_share() to accept destination area flags bitmask from the sender
(i.e. the sender can limit access mode to the shared area for the recipient).
Modify IPC_M_AS_AREA_SEND code to support this. Arguments for sender: arg1=as_area,
arg2=size, arg3=flags_mask.
The mechanism seems to work, but the page fault handlers need to be altered to
distinguish between faults under different access modes. |
|
| 1413 |
6610 d 14 h |
jermar |
/kernel/trunk/generic/ |
Reimplement memory sharing. Currently, only
anonymous address space areas can be shared. |
|
| 1396 |
6613 d 15 h |
palkovsky |
/kernel/trunk/ |
Fixed mips to compile with fb (missing hw_map).
Fixed mips hw virt/phys addresses of fb.
Moved fb_init to post_mm, because it needs malloc(). |
|
| 1364 |
6617 d 21 h |
jermar |
/kernel/trunk/generic/ |
Modify ipc_wait_for_call() to support all of blocking, non-blocking and timeout operation. |
|
| 1359 |
6618 d 18 h |
jermar |
/kernel/trunk/generic/ |
Rename IPC_M_AS_SEND to IPC_M_AS_AREA_SEND. |
|
| 1346 |
6619 d 1 h |
palkovsky |
/kernel/trunk/generic/src/ipc/ |
Small updates to IPC regarding AS_SEND. |
|
| 1329 |
6620 d 18 h |
palkovsky |
/kernel/trunk/generic/ |
Added support to IPC for simple page sharing. |
|
| 1297 |
6627 d 20 h |
jermar |
/kernel/trunk/ |
Add SYS_CAP_GRANT and SYS_CAP_REVOKE syscalls.
Move SYS_PREEMPT_CONTROL to ddi.c.
Add some comments and fix some small issues. |
|
| 1293 |
6629 d 20 h |
palkovsky |
/kernel/trunk/ |
Implemented mips memcpy (copy from gcc builtin memcpy). |
|
| 1288 |
6630 d 0 h |
jermar |
/kernel/trunk/ |
Complete implementation of copy_from_uspace() and copy_to_uspace()
for amd64 and ia32. Other architectures still compile and run,
but need to implement their own assembly-only memcpy(), memcpy_from_uspace(),
memcpy_to_uspace() and their failover parts. For these architectures
only dummy implementations are provided. |
|
| 1281 |
6632 d 14 h |
palkovsky |
/kernel/trunk/ |
Added means to make a simple action upon interrupt. |
|
| 1258 |
6635 d 13 h |
palkovsky |
/kernel/trunk/ |
Added support for IRQ notifiactions.
- seems to work correctly on ia32, amd64
- the mips kbd probably lowers interrupts when the char is read from
the port, we will have to find a way how to deal with it. |
|
| 1248 |
6637 d 18 h |
jermar |
/kernel/trunk/ |
Add some @file doxygen comments and improve already existing comments. |
|
| 1141 |
6664 d 22 h |
palkovsky |
/kernel/trunk/generic/src/ipc/ |
Completed ipc_cleanup, it should be somehow integrated into
cleanup of task. The function can sleep. |
|
| 1090 |
6676 d 16 h |
palkovsky |
/kernel/trunk/generic/ |
Reduced unnecessary IPC system calls.
Allow everything to be sync & async, everything is handled using messages. |
|
| 1088 |
6676 d 23 h |
palkovsky |
/kernel/trunk/generic/ |
More IPC stuff, added correct closing of connections from both sides. |
|
| 1086 |
6677 d 13 h |
palkovsky |
/kernel/trunk/generic/ |
Untested better IPC functions.
* There is some bug in MIPS, unpredicatbly sometimes the thread gets mapped
different frame for stack. |
|