| Rev |
Age |
Author |
Path |
Log message |
Diff |
| 2015 |
6406 d 1 h |
jermar |
/trunk/ |
Rework support for virtually indexed cache.
Instead of repeatedly flushing the data cache, which was a huge overkill, refuse to create an illegal address alias
in the kernel (again) and allocate appropriate page color in userspace instead. Extend the detection also to
SYS_PHYSMEM_MAP syscall.
Add support for tracking physical memory areas mappable by SYS_PHYSMEM_MAP.
Lots of coding style changes. |
|
| 2009 |
6411 d 0 h |
jermar |
/trunk/kernel/ |
Initial support for handling illegal virtual aliases on sparc64. |
|
| 2008 |
6413 d 1 h |
jermar |
/trunk/kernel/arch/sparc64/ |
Add dcache_flush() function that flushes D-Cache on sparc64. |
|
| 2007 |
6413 d 23 h |
jermar |
/trunk/kernel/ |
Introduce page colors. So far, only sparc64 uses correct page color bits. Other architectures have a dummy define
specifying zero bits for a page color.
There is a new check of page color in as_area_share(). Because of lack of support for this in the userspace, the
check has been #ifef'ed out. |
|
| 2003 |
6415 d 6 h |
decky |
/trunk/kernel/arch/ |
cleanup endian conversion macros |
|
| 1984 |
6426 d 1 h |
jermar |
/trunk/kernel/arch/sparc64/ |
sparc64 work:
- untested support for Psycho PCI controller |
|
| 1978 |
6428 d 1 h |
jermar |
/trunk/ |
sparc64 code to support physical memory that starts on non-zero addresses.
Still needs to be tested on systems with such setup. |
|
| 1976 |
6434 d 7 h |
jermar |
/trunk/kernel/arch/sparc64/ |
sparc64 context does not have to include the CLEANWIN register. |
|
| 1954 |
6450 d 0 h |
jermar |
/trunk/ |
Minor changes. Some coding style fixes and also a type (tee vs. tree).
One AS -> as change. |
|
| 1949 |
6454 d 8 h |
jermar |
/trunk/kernel/arch/ |
Remove notes about automatically generated context_offset.h
and replace it with a proper copyright notice. |
|
| 1948 |
6454 d 11 h |
jermar |
/trunk/kernel/ |
Remove broken, outdated and unused gencontext.c utilities. |
|
| 1946 |
6456 d 22 h |
jermar |
/trunk/kernel/arch/sparc64/ |
sparc64 work.
- Improve panic screen on data_access_exception
by dumping contents of DSFSR and DSFAR.
- Change the FHC enable interrupt code to only
set the IMAP_V bit. |
|
| 1942 |
6458 d 1 h |
jermar |
/trunk/ |
Convert ia64 to the new IRQ and notification scheme. |
|
| 1921 |
6462 d 2 h |
jermar |
/trunk/kernel/ |
Changes in ns16550 and z8530 drivers.
Add some stuff for IRQ notifications to irq_t. |
|
| 1917 |
6467 d 2 h |
jermar |
/trunk/ |
sparc64 work:
- hw_map() can now support up to 8M requests
- CPU stacks are now locked in DTLB of the respective processor
- kernel in the boot phase no longer relies on the stack provided by OpenFirmware
- instead of of doing FLUSHW during kernel startup, simply set the
window state registers to the wanted state
- NWINDOW -> NWINDOWS
- Add/fix some comments and copyrights. |
|
| 1915 |
6468 d 1 h |
jermar |
/trunk/kernel/ |
A quote from from SPARC V9 specification:
The Y register is deprecated; it is provided only for compatibility with previous versions
of the architecture. It should not be used in new SPARC-V9 software. It is
recommended that all instructions that reference the Y register (i.e., SMUL,
SMULcc, UMUL, UMULcc, MULScc, SDIV, SDIVcc, UDIV, UDIVcc, RDY, and
WRY) be avoided. See the appropriate pages in Appendix A, “Instruction Definitions,”
for suitable substitute instructions.
Still gcc is generating code which uses Y and some of the instructions above.
This change modifies the preemptible_handler() to preserve the Y register
across preemption. |
|
| 1911 |
6469 d 23 h |
jermar |
/trunk/kernel/ |
Add support for interrupt mapping in the Sabre PCI controller.
Add support for PCI and EBUS interrupt mapping via the OpenFirmware device tree.
Unfortunatelly, the code is not capable enough to earn single ns16550 interrupt.
I suspect something needs to be enabled in the EBUS registers. |
|
| 1910 |
6472 d 23 h |
jermar |
/trunk/kernel/ |
Rename INO to INR, for the sake of consistency with manuals. |
|
| 1909 |
6474 d 0 h |
jermar |
/trunk/ |
Extend the OFW device tree node with a void pointer. The boot loader is
supposed to reset all pointers in all nodes. The kernel uses the pointer
to recognize that a particular device has already been visited and initialized.
Read interrupt mapping from the OFW device tree for FHC devices (z8530) and
EBUS devices (ns16550). In case of FHC devices, remove hardwired values from
the code and use only values read from the tree. FHC initialization is started
when a FHC device wants to map its interrupt. In case of EBUS devices, map
the interrupt to INO. Interrupt enabling in the interrupt controller for that
specific interrupt is not implemented yet. |
|
| 1904 |
6478 d 6 h |
jermar |
/trunk/kernel/ |
IPI/cross-call support for sparc64.
SMP on sparc64 is now fully supported. |
|
| 1903 |
6479 d 1 h |
jermar |
/trunk/ |
SMP stuff for sparc64.
Almost complete except for IPIs.
The absence of IPI support deadlocks
the kernel when more CPUs are configured. |
|
| 1902 |
6480 d 5 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
Implement spinlock and test_and_set for sparc64. |
|
| 1899 |
6480 d 8 h |
jermar |
/trunk/ |
sparc64 work:
- Loader now starts all processors.
- Kernel halts all but the bootstrup processor for now.
- Read clock-frequency from the respective processor node in the device tree |
|
| 1897 |
6483 d 8 h |
jermar |
/trunk/ |
Convert sparc64 framebuffer code to configure from the OpenFirmware device tree memory representation. |
|
| 1896 |
6484 d 0 h |
jermar |
/trunk/ |
Convert sparc64 to detect keyboard and determine
its physical address by walking the memory representation
of the OpenFirmware device tree.
Add bus-specific functions that know how to apply the
"ranges" property to one component of the "reg" property.
Buses supported so far include FHC, EBUS and PCI. |
|
| 1894 |
6486 d 23 h |
jermar |
/trunk/ |
Add balloc() (a.k.a boot allocator):
- balloc() only needs to know how to allocate memory.
- Memory allocated via balloc() is supposed to be passed to kernel and never freed by boot itself.
- make kernel aware of boot allocations
More work on OFW device tree:
- use balloc() to efficiently and safely allocate memory for the canonical copy of the device tree
sparc64 boot:
- pass OFW device tree root node pointer to kernel |
|
| 1891 |
6487 d 23 h |
jermar |
/trunk/kernel/ |
sparc64 work:
- Experimental support for TSB (Translation Storage Buffer). |
|
| 1890 |
6488 d 10 h |
jermar |
/trunk/ |
- Create a dedicated slab cache for as_t objects and switch from malloc/free to slab_alloc/slab_free for
them.
- Slightly fix and improve both the kernel and userspace atomic_add() on sparc64.
- More TSB work on the sparc64 front. |
|
| 1889 |
6489 d 1 h |
jermar |
/trunk/kernel/ |
Fix bug in mm/as.c:
- as_area_destroy() should not work with AS but as
sparc64 work:
- start implementing TSB support |
|
| 1888 |
6492 d 4 h |
jermar |
/trunk/ |
C99 compliant header guards (hopefully) everywhere in the kernel.
Formatting and indentation changes.
Small improvements in sparc64. |
|
| 1887 |
6492 d 8 h |
jermar |
/trunk/kernel/arch/sparc64/ |
When creating TLB mapping for the sparc64 kernel, enable CV (cacheable virtually) bit.
Also install locked mappings only in context 0. |
|
| 1885 |
6492 d 12 h |
jermar |
/trunk/kernel/arch/sparc64/include/ |
On sparc64, get_stack_base() must use the unbiased %sp (i.e. %sp + 2047). |
|
| 1883 |
6493 d 7 h |
jermar |
/trunk/kernel/arch/sparc64/ |
More sparc64 FPU trap handlers. |
|
| 1882 |
6493 d 8 h |
jermar |
/trunk/kernel/ |
Support for sparc64 FPU context. |
|
| 1881 |
6494 d 8 h |
jermar |
/trunk/ |
sparc64 work:
- find a CPU node and read its clock_frequency attribute
- implement asm_delay_loop()
- set TICK_COMPARE register according to processor frequency
- small improvements at random places
OpenFirmware work:
- two new functions for walking the device tree
Generic boot loader work:
- added basic string functions
Usual pile of indentation and formatting fixes. |
|
| 1880 |
6496 d 0 h |
jermar |
/trunk/ |
Small improvements here and there. |
|
| 1875 |
6499 d 1 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. |
|
| 1870 |
6501 d 0 h |
jermar |
/trunk/kernel/ |
Handle more sparc64 traps and improve handling of already handled traps. |
|
| 1865 |
6502 d 2 h |
jermar |
/trunk/kernel/ |
sparc64 kernel fixes |
|
| 1864 |
6502 d 22 h |
jermar |
/trunk/ |
sparc64 update.
- Prototype userspace layer implementation that
at least relates to sparc64 and compiles cleanly.
- Fixes for kernel's preemptible_handler and code
related to running userspace.
- Enable userspace. Several dozen instructions
are now run in userspace! We are pretty near
the userspace milestone for sparc64. |
|