Subversion Repositories HelenOS-historic

Rev

Go to most recent revision | Show changed files | Directory listing | RSS feed

Filtering Options

Rev Age Author Path Log message Diff
1425 6565 d 18 h jermar /kernel/trunk/generic/ Make address space backend data a union.  
1424 6565 d 21 h jermar /kernel/trunk/ Move the sharing functionality to address space area backends.
Add backend for continuous regions of physical memory.
Sharing for these areas works automagically now.
 
1423 6566 d 1 h jermar /kernel/trunk/ Update page fault handlers to distinguish between different access modes that had caused the page fault.  
1417 6567 d 17 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.
 
1416 6568 d 4 h jermar /kernel/trunk/generic/ Make implementation of condition variables compliant with their definition.
Signal operation must become a no-op if there is no thread in the wait operation.
Remove condvar_trywait() which has no meaning after this change.
 
1415 6568 d 5 h jermar /kernel/trunk/generic/ Some renaming to prevent confusion.
as_lock -> inactive_as_with_asid_lock
as_t::refcount -> as_t::cpu_refcount
 
1414 6568 d 6 h jermar /kernel/trunk/generic/src/synch/ Small fixes in futex.c.
PTE_GET_FRAME() returns frame address, not PFN.
Update comments.
 
1413 6568 d 16 h jermar /kernel/trunk/generic/ Reimplement memory sharing. Currently, only
anonymous address space areas can be shared.
 
1411 6568 d 21 h jermar /kernel/trunk/ Modify the hierarchy of page fault handlers to pass access mode that caused the fault.
Architectures are required to pass either PF_ACCESS_READ, PF_ACCESS_WRITE or PF_ACCESS_EXEC
to as_page_fault(), depending on the cause of the fault.
 
1409 6569 d 15 h jermar /kernel/trunk/generic/ Some shared memory stuff (not completed).
Support for address space area backends.
Add ELF and anonymous memory backends.
 
1403 6571 d 5 h jermar /kernel/trunk/generic/src/mm/ Fixes of the used_space management code.
Switch as_area_destroy() and as_area_resize() to use the used_space map.
as_area_steal() not switched as it will undergo further changes.
 
1396 6571 d 18 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().
 
1389 6571 d 20 h decky /kernel/trunk/ minor changes
ppc32: identically map the whole physical memory
fix page hash table refill logic
 
1387 6571 d 23 h jermar /kernel/trunk/generic/ Add used_space_insert() and used_space_remove().
These are the alpha versions of functions that
will help to map used and unused portions of address
space areas. Currently unused, but many as_area operations
will be more efficient when the used space B+tree map
is used.
 
1386 6572 d 0 h palkovsky /kernel/trunk/ Fixed mips bug fith TLS register not being properly saved on syscall context
switch.
Reverted SYS_IO, so that it could be used on machines without fb.
 
1383 6572 d 16 h decky /kernel/trunk/ ppc32: hardware memory mapping, kernel PHT refill fix  
1382 6572 d 17 h decky /kernel/trunk/ make hardware memory mapping more generic  
1380 6572 d 19 h jermar /kernel/trunk/ Turn address space lock, address space area lock and
page_ht_lock into mutexes.
 
1375 6574 d 3 h jermar /kernel/trunk/generic/ Fix race in condition variables.  
1364 6576 d 0 h jermar /kernel/trunk/generic/ Modify ipc_wait_for_call() to support all of blocking, non-blocking and timeout operation.  
1362 6576 d 15 h vana /kernel/trunk/generic/src/syscall/ kernel changes for uspace FB driver  
1359 6576 d 21 h jermar /kernel/trunk/generic/ Rename IPC_M_AS_SEND to IPC_M_AS_AREA_SEND.  
1358 6576 d 21 h jermar /kernel/trunk/generic/ Cleanup after removal of as_area_accept and as_area_send.  
1346 6577 d 4 h palkovsky /kernel/trunk/generic/src/ipc/ Small updates to IPC regarding AS_SEND.  
1342 6577 d 5 h jermar /kernel/trunk/generic/ Improve comments.  
1341 6577 d 17 h cejka /kernel/trunk/generic/src/main/ Added capability to register IRQs to tasks.  
1337 6577 d 23 h jermar /kernel/trunk/generic/src/adt/ Remove a misleading comment.  
1329 6578 d 21 h palkovsky /kernel/trunk/generic/ Added support to IPC for simple page sharing.  
1327 6578 d 23 h decky /kernel/trunk/ split framebuffer initialization and sysinfo registration  
1326 6579 d 0 h decky /kernel/trunk/generic/src/sysinfo/ fix conding style, make it compile again  
1325 6579 d 1 h vana /kernel/trunk/generic/src/sysinfo/ sysinfo warning patch  
1323 6579 d 5 h jermar /kernel/trunk/ Increase "timeout" for debugging spinlock so that false positive
deadlock reports are suppressed on real hardware.

Also add one HT configuration to hardware compatibility list.
 
1322 6579 d 5 h vana /kernel/trunk/generic/src/sysinfo/ memory deallocation fix in sysinfo syscall handlers  
1321 6579 d 5 h vana /kernel/trunk/generic/ force return 0 if no valid pointer in sysinfo syscall  
1318 6579 d 18 h vana /kernel/trunk/ Sysinfo userspace interface  
1317 6579 d 20 h vana /kernel/trunk/ System information tools  
1315 6579 d 21 h jermar /kernel/trunk/generic/ Improve framebuffer speed by buffering blank line.  
1313 6580 d 2 h jermar /kernel/trunk/ Do not report possible deadlock on fb_lock.
This issue was causing troubles in connection
with slow framebuffer in simulated environment
when false positives triggered an infinite
recursion of attempts to report deadlock on
fb_lock using printf() and fb_putchar().
 
1310 6581 d 2 h jermar /kernel/trunk/ Change coding style in vesa.c and do some minor changes.  
1309 6581 d 20 h jermar /kernel/trunk/generic/src/mm/ On as_area_destroy(), mark the area as partial before unlocking and free its
structure after unlocking.