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(root)/trunk/kernel/arch/sparc64/src/sparc64.c – Rev 1879

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Rev	Age	Author	Path	Log message
1879	6475 d 15 h	jermar	/trunk/kernel/arch/sparc64/src/	Revert last change. The register window save area is automatically allocated by the SAVE instruction.
1878	6475 d 17 h	jermar	/trunk/kernel/arch/sparc64/src/	Even the first kernel register window after the switch from userspace stack needs proper register window save area [sparc64].
1875	6477 d 7 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.
1864	6481 d 4 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.
1860	6484 d 9 h	jermar	/trunk/kernel/	A lot of untested sparc64 stuff: - Write ASID to hardware when a thread is about to run in userspace. - Add userspace() and switch_to_userspace() functions. - Handle special cases when the userspace spill/fill handler causes MMU trap. - Resolve some TODOs in the existing sparc64 code. - sparc64 has now C99 compliant header guards. - Formatting and indentation fixes.
1823	6514 d 11 h	jermar	/trunk/kernel/arch/sparc64/	sparc64 work. Dump take_over_tlb_and_tt() and add its assembly language replacement.
1822	6514 d 16 h	jermar	/trunk/	sparc64 work. 1. Formatting fixes. 2. When writing to DMMU ASI's, simple membar() can be used in place of flush(). 3. Substantial changes in the way the TLB is taken over. 4. Remove unneeded functions. This is the first revision that also runs on a real world Ultra 5 with UltraSPARC IIi processor. Note that 3. needs further work as the current implementation depends on the fact that the compiler will use registers for local variables in take_over_tlb_and_tt(). Rewrite of that function into assembly is to follow.
1792	6533 d 5 h	jermar	/trunk/	Move functionality of tlb_arch_init() to take_over_tlb_and_tt(). Call take_over_tlb_and_tt() very early after the kernel starts executing.
1790	6533 d 10 h	jermar	/trunk/	Remove OpenFirmware calls from kernel/ entirely. Switch the sparc64 port to use bootinfo. Copy memcpy from boot/ to sparc64 kernel/ and adjust it for memcpy_from/to_uspace.
1787	6535 d 9 h	decky	/	move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot
1784	6536 d 6 h	jermar	/kernel/trunk/	Sync OpenFirmware functionality with boot. Random cleanup.
1769	6545 d 6 h	jermar	/kernel/trunk/arch/	Change cache_error exception to take istate * as a parameter. Make cache_error() print epc in the panic message. Do not rely on the compiler to generate 'nop' after 'beq' in atomic_add() and put it there explicitly. Indentation fixes and cosmetic changes.
1705	6562 d 16 h	cejka	/kernel/trunk/	Added file with modules definitions and descriptions. We are able to change modules order and their description in one place.
1704	6562 d 19 h	cejka	/kernel/trunk/	Fixed first letter size of subgroup name in Others.
1702	6563 d 13 h	cejka	/kernel/trunk/	Kernel doxygen comments updated.
1474	6576 d 5 h	palkovsky	/kernel/trunk/	Added syscall that lets kernel regain access to keyboard.
1062	6652 d 5 h	jermar	/kernel/trunk/	It is now possible to associate symbolic names with both threads and tasks. More verbose kconsole threads, tasks and scheduler commands.
897	6669 d 3 h	jermar	/kernel/trunk/	sparc64 work. Fix KBD_VIRT_ADDRESS. Call before_thread_runs() prior to the switch to the thread's stack. Add comment why this is crucial. Add after_thread_ran() to the scheduler. Add before_thread_runs_arch() and after_thread_ran_arch() for sparc64, mapping/demapping thread's kernel stack. Add dummy after_thread_ran_arch() to all other architectures. Add dtlb_insert_mapping() to promote code reuse.
895	6669 d 7 h	jermar	/kernel/trunk/	sparc64 work. Very raw and fragile preliminary standalone keyboard support - polling mode only. Because of a workaround in Simics, the scan codes are the same as on ia32.
893	6669 d 15 h	jermar	/kernel/trunk/arch/	sparc64 work. Revive OFW console code and use it before the kernel switches to standalone console. ia32 + ia64 cosmetic changes.
883	6670 d 15 h	jermar	/kernel/trunk/arch/sparc64/	sparc64 work. Switch console to framebuffer (needs proper detection and initialization). No native keyboard support, so far. Memory management trap handler fixes. Do not use OpenFirmware trap table anymore.
669	6728 d 5 h	jermar	/kernel/trunk/	sparc64 work. kconsole support. Add non-blocking ofw_getchar().
664	6733 d 2 h	jermar	/kernel/trunk/	sparc64 work. Interrupt Levels 1 - 15 serviced. Minor changes in the exc_* functions.
663	6733 d 15 h	jermar	/kernel/trunk/arch/sparc64/	sparc64 work. Initial interrupt_vector_trap handler and fixes needed to make it do the right thing (i.e. panic()).
646	6740 d 4 h	jermar	/kernel/trunk/	Fix cpu_init(): frame_alloc() can return 0 as the valid address of block of frames. Do not signal error. sparc64 work. Reorganize kernel vs. userspace memory layout. Add panic_printf(). Turn dummy() into nop rather than into infinite loop.
630	6743 d 8 h	jermar	/kernel/trunk/arch/sparc64/	sparc64 work. Register window clean, spill and fill handlers.
627	6743 d 10 h	jermar	/kernel/trunk/	Fix ia64 and sparc64 to compile with new atomic_t. Fix rwlock test #5 and semaphore test #1 to compile with new atomic_t. sparc64 work. TBA must be set before a function call when MMU is switched off.
619	6745 d 2 h	jermar	/kernel/trunk/arch/sparc64/	sparc64 work. Functions for disabling/enabling MMU. TLB initialization. Identity mapping of first 4M for kernel. Switch to kernel copy of trap table.
586	6748 d 11 h	jermar	/kernel/trunk/	Fix ppc32 and sparc64 to compile again. Fix sparc64 to function again.
534	6754 d 8 h	jermar	/	Rename HelenOS/SPARTAN to HelenOS/kernel again.
532	6754 d 8 h	jermar	/	Revert renaming of HelenOS/SPARTAN to HelenOS/kernel because of important pending patch.
529	6756 d 11 h	jermar	/kernel/trunk/arch/sparc64/	sparc64 work. Add dummy trap tables.
503	6766 d 11 h	jermar	/kernel/trunk/	Rename arch_late_init() to arch_pre_smp_init(). Add arch_post_smp_init(). Enable IRQ_KBD on ia-32 (doesn't work on Bochs SMP, works on Bochs UP).
501	6766 d 12 h	jermar	/	Rename HelenOS/SPARTAN to HelenOS/kernel.
424	6790 d 14 h	jermar	/SPARTAN/trunk/	sparc64 work. Link kernel with load address 0x4000. Add fragment of Linux image header to force SILO to always load the kernel at 0x4000. Adjust ofw.h and ofw.c to work also on sparc64.