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(root)/trunk/kernel/arch/sparc64/src/start.S – Rev 2049

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Rev	Age	Author	Path	Log message
2049	6358 d 20 h	jermar	/trunk/kernel/arch/sparc64/src/	More formatting and indentation changes.
2009	6371 d 11 h	jermar	/trunk/kernel/	Initial support for handling illegal virtual aliases on sparc64.
2008	6373 d 12 h	jermar	/trunk/kernel/arch/sparc64/	Add dcache_flush() function that flushes D-Cache on sparc64.
2001	6377 d 9 h	jermar	/trunk/kernel/	Indentation and comment fixes.
1996	6383 d 14 h	jermar	/trunk/kernel/	Add option to compile the sparc64 kernel without the TTE_CV bit support. The bit is not used by default now. Enabling it may theoretically lead to physical memory inconsistencies until code that mitigates the problem is written.
1982	6387 d 20 h	jermar	/trunk/	Modify the sparc64 startup code to not cause MMU traps before it takes over the TLB and the trap table. Fix several PA2KA and KA2PA omittions or errors. Fix configuration to pass the DEFS variable along.
1978	6388 d 12 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.
1975	6398 d 10 h	jermar	/trunk/kernel/arch/sparc64/src/	Typo.
1954	6410 d 11 h	jermar	/trunk/	Minor changes. Some coding style fixes and also a type (tee vs. tree). One AS -> as change.
1917	6427 d 13 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.
1906	6437 d 14 h	jermar	/trunk/	Small improvements in sparc64.
1905	6437 d 22 h	jermar	/trunk/kernel/arch/sparc64/src/	Small fixes. The sparc64 kernel now compiles again even if not compiled with SMP support.
1903	6439 d 12 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.
1900	6440 d 19 h	jermar	/trunk/kernel/arch/sparc64/src/	Block the secondary processors after they setup kernel mapping in ITLB and DTLB and switch to kernel trap table.
1899	6440 d 19 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
1887	6452 d 19 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.
1881	6454 d 19 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	6456 d 11 h	jermar	/trunk/	Small improvements here and there.
1868	6461 d 17 h	jermar	/trunk/	sparc64 work. - the syscall wrapper needs to use the "memory" clobber specifier to prevent over-optimization. - on sparc64, the user address space spans the whole 64-bit space and therefore the macro USER_ADDRESS_SPACE_SIZE_ARCH, as it was defined, overflows to 0 - stop using USER_ADDRESS_SPACE_SIZE_ARCH and define MAX_HEAP_SIZE instead - in our situation when kernel and user address spaces are separate, the G (global) bit cannot be used (there is no point in it anymore) - add the DEBUG() macro to stdio.h; DEBUG() uses SYS_IO and is a good debugging tool for getting early userspace to work
1864	6463 d 9 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.

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