| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 3993 |
5779 d 11 h |
rimsky |
/branches/sparc/kernel/ |
Implemented preemptible trap handler for userspace (including syscalls - did not forget enabling interrupts for them) and the ralated stuff. Implemented handlers of instruction/data MMU miss/protection. Now some userspace tasks are run; there are, however, still some bugs causing unexpected data MMU misses. |
|
| 3742 |
5844 d 22 h |
rimsky |
/branches/sparc/ |
The sparc branch synchronized with trunk at revision 3722 (trunk@3722). |
|
| 3492 |
5917 d 15 h |
rimsky |
/branches/sparc/ |
Changes in trunk merged into the sparc branch. SILO's ramdisk issue solved by the CONFIG_RD_EXTERNAL option. |
|
| 3397 |
5949 d 20 h |
rimsky |
/branches/sparc/ |
Merged recent changes from trunk into the Sparc branch. |
|
| 3343 |
5973 d 17 h |
decky |
/branches/sparc/ |
add sparc branch |
|
| 3240 |
5992 d 23 h |
decky |
/ |
move unfinished ObjC support to a separate branch |
|
| 3222 |
6015 d 18 h |
svoboda |
/trunk/ |
Merge program-loader related stuff from dynload branch to trunk. (huge) |
|
| 3186 |
6030 d 15 h |
jermar |
/trunk/kernel/ |
Support for active mutexes. Active mutexes implement busy waiting, pretty much
in the same way as spinlocks, but can be passed to condition variables, which is
the motivation for this enhancement. |
|
| 3104 |
6048 d 2 h |
svoboda |
/trunk/kernel/ |
Declare arguments for memstr.h operations as pointers instead of uintptr_t. |
|
| 3057 |
6050 d 19 h |
decky |
/trunk/kernel/generic/src/mm/ |
proper printf formatting |
|
| 2745 |
6147 d 22 h |
decky |
/trunk/ |
code cleanup (mostly signed/unsigned)
allow extra compiler warnings |
|
| 2647 |
6220 d 15 h |
jermar |
/trunk/kernel/generic/src/mm/ |
Fix a bug in anonymous address space area sharing. Call the backend's share
function only if the source area is not already shared. Otherwise increment the
sh_info refcount. Without this fix, the kernel will try to recreate the pagemap
if three and more address space areas attempt to share the same data. |
|
| 2556 |
6298 d 23 h |
jermar |
/trunk/kernel/generic/ |
Rename as_get_size() to as_area_get_size() and add a doxygen comment. |
|
| 2183 |
6475 d 18 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. |
|
| 2170 |
6480 d 12 h |
jermar |
/trunk/kernel/ |
Simplify synchronization in as_switch().
The function was oversynchronized, which
was causing deadlocks on the address
space mutex.
Now, address spaces can only be switched
when the asidlock is held. This also protects
stealing of ASIDs. No other synchronization
is necessary. |
|
| 2141 |
6484 d 10 h |
jermar |
/trunk/ |
The Ultimate Solution To Illegal Virtual Aliases.
It is better to avoid them completely than to fight them.
Switch the sparc64 port to 16K pages. The TLBs and TSBs
continue to operate with 8K pages only. Page tables and
other generic parts operate with 16K pages.
Because the MMU doesn't support 16K directly, each 16K
page is emulated by a pair of 8K pages. With 16K pages,
illegal aliases cannot be created in 16K D-cache. |
|
| 2133 |
6485 d 15 h |
jermar |
/trunk/kernel/generic/src/mm/ |
Coding style and indentation fixes. |
|
| 2126 |
6528 d 11 h |
decky |
/trunk/kernel/ |
small cleanup, more work coming |
|
| 2125 |
6528 d 14 h |
decky |
/trunk/ |
experimental support for Objective C
(disabled by default) |
|
| 2106 |
6536 d 21 h |
jermar |
/trunk/kernel/ |
Merge as_t structure into one and leave the differring parts in as_genarch_t.
Indentation and formatting changes in header files. |
|