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(root)/trunk/kernel/arch/sparc64/src/sparc64.c – Rev 2071

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Rev	Age	Author	Path	Log message
2071	6325 d 19 h	jermar	/trunk/	(c) versus (C)
2048	6357 d 20 h	jermar	/trunk/	Formatting and indentation changes.
2043	6359 d 21 h	jermar	/trunk/kernel/arch/sparc64/src/	Make the sparc64 kernel compile again.
1982	6386 d 3 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.
1920	6421 d 4 h	jermar	/trunk/kernel/	Move the new IRQ redirector to ddi/. Add function for assigning unique device numbers. Change sparc64/drivers/kbd.c to assign devno to keyboard.
1919	6421 d 18 h	jermar	/trunk/kernel/	Prototypical implementation of new IRQ redirector in sparc64. The new code can support shared IRQs in kernel (and multiple IRQs per device). Userspace support is yet to be written. The only architecture that uses this code is actually sparc64 only.
1903	6437 d 19 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.
1901	6439 d 0 h	jermar	/trunk/kernel/	Make SMP related parts of main.c more generic. Move initialization of local APIC to architecture specific code. Add arch_post_cpu_init() to support the above.
1899	6439 d 2 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
1895	6444 d 19 h	jermar	/trunk/	More ofw_tree work and fixes. Add ofw_tree_lookup(). Every ofw_tree_node now also contains a disambigued name which is essential for tree lookups.
1894	6445 d 16 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
1881	6453 d 2 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.
1879	6456 d 3 h	jermar	/trunk/kernel/arch/sparc64/src/	Revert last change. The register window save area is automatically allocated by the SAVE instruction.
1878	6456 d 4 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	6457 d 19 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	6461 d 16 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	6464 d 20 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	6494 d 23 h	jermar	/trunk/kernel/arch/sparc64/	sparc64 work. Dump take_over_tlb_and_tt() and add its assembly language replacement.
1822	6495 d 4 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	6513 d 17 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	6513 d 22 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	6515 d 21 h	decky	/	move kernel/trunk, uspace/trunk and boot/trunk to trunk/kernel, trunk/uspace and trunk/boot
1784	6516 d 18 h	jermar	/kernel/trunk/	Sync OpenFirmware functionality with boot. Random cleanup.
1769	6525 d 18 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	6543 d 4 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	6543 d 7 h	cejka	/kernel/trunk/	Fixed first letter size of subgroup name in Others.
1702	6544 d 1 h	cejka	/kernel/trunk/	Kernel doxygen comments updated.
1474	6556 d 17 h	palkovsky	/kernel/trunk/	Added syscall that lets kernel regain access to keyboard.
1062	6632 d 17 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	6649 d 15 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	6649 d 19 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	6650 d 3 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	6651 d 3 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	6708 d 17 h	jermar	/kernel/trunk/	sparc64 work. kconsole support. Add non-blocking ofw_getchar().
664	6713 d 14 h	jermar	/kernel/trunk/	sparc64 work. Interrupt Levels 1 - 15 serviced. Minor changes in the exc_* functions.
663	6714 d 3 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	6720 d 16 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	6723 d 19 h	jermar	/kernel/trunk/arch/sparc64/	sparc64 work. Register window clean, spill and fill handlers.
627	6723 d 22 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	6725 d 13 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.