1 /*-
31 /*-
139 int hw_direct_map = -1;
173 /* Default MSR values set in the AIM/Book-E early startup code */
188 	 * Initialise the decrementer-based clock.  in cpu_startup()
206 		    virtual_end - virtual_avail,  in cpu_startup()
207 		    (virtual_end - virtual_avail) / 1048576);  in cpu_startup()
218 			    phys_avail[indx + 1] - phys_avail[indx];  in cpu_startup()
221 			printf("0x%016jx - 0x%016jx, %ju bytes (%ju pages)\n",  in cpu_startup()
223 			printf("0x%09jx - 0x%09jx, %ju bytes (%ju pages)\n",  in cpu_startup()
226 			    (uintmax_t)phys_avail[indx + 1] - 1,  in cpu_startup()
238 	 * Set up buffers, so they can be used to read disk labels.  in cpu_startup()
274 	/* First guess at start/end kernel positions */  in powerpc_init()
290 	bzero(__sbss_start, __sbss_end - __sbss_start);  in powerpc_init()
291 	bzero(__bss_start, _end - __bss_start);  in powerpc_init()
302 	 * Book-E started there, and AIM has done an rfi and restarted  in powerpc_init()
316 		 * Starting up from loader.  in powerpc_init()
329 		md_offset = VM_MIN_KERNEL_ADDRESS - kernload;  in powerpc_init()
368 		 * Self-loading kernel, we have to fake up metadata.  in powerpc_init()
390 	 * Start initializing proc0 and thread0.  in powerpc_init()
438 	__syncicache((caddr_t)startkernel, endkernel - startkernel);  in powerpc_init()
448 	 * Set up per-cpu data for the BSP now that the platform can tell  in powerpc_init()
456 	pc->pc_curthread = &thread0;  in powerpc_init()
458 	pc->pc_cpuid = bsp.cr_cpuid;  in powerpc_init()
459 	pc->pc_hwref = bsp.cr_hwref;  in powerpc_init()
467 	 * Bring up MMU  in powerpc_init()
489 	 * Finish setting up thread0.  in powerpc_init()
492 	    ((thread0.td_kstack + thread0.td_kstack_pages * PAGE_SIZE -  in powerpc_init()
495 	pc->pc_curpcb = thread0.td_pcb;  in powerpc_init()
506 	return (((uintptr_t)thread0.td_pcb -  in powerpc_init()
507 	    (sizeof(struct callframe) - 3*sizeof(register_t))) & ~15UL);  in powerpc_init()
523 	vm_paddr_t start, end;  in load_external_symtab()  local
544 	if (!OF_hasprop(chosen, "linux,initrd-start") ||  in load_external_symtab()
545 	    !OF_hasprop(chosen, "linux,initrd-end"))  in load_external_symtab()
548 	size = OF_getencprop(chosen, "linux,initrd-start", cell, sizeof(cell));  in load_external_symtab()
550 		start = cell[0];  in load_external_symtab()
552 		start = (uint64_t)cell[0] << 32 | cell[1];  in load_external_symtab()
556 	size = OF_getencprop(chosen, "linux,initrd-end", cell, sizeof(cell));  in load_external_symtab()
564 	if (!(end - start > 0))  in load_external_symtab()
567 	kernelimg_final = (u_char *) PHYS_TO_DMAP(start);  in load_external_symtab()
571 	kernelimg = (u_char *)pmap_early_io_map(start, PAGE_SIZE);  in load_external_symtab()
577 		pmap_early_io_unmap(start, PAGE_SIZE);  in load_external_symtab()
583 	pmap_early_io_unmap(start, PAGE_SIZE);  in load_external_symtab()
584 	kernelimg = (u_char *)pmap_early_io_map(start, (end - start));  in load_external_symtab()
587 	shdr = (Elf_Shdr *)(kernelimg + ehdr->e_shoff);  in load_external_symtab()
595 	for (i = 0; i < ehdr->e_shnum; i++) {  in load_external_symtab()
620 		 * them up later, after the DMAP is up.  in load_external_symtab()
625 		ksymtab_relbase = (__startkernel - KERNBASE);  in load_external_symtab()
629 	pmap_early_io_unmap(start, (end - start));  in load_external_symtab()
654 	i += howmany(fake_preload[i - 1], sizeof(uint32_t));  in fake_preload_metadata()
657 	/* Padding -- Fields start on u_long boundaries */  in fake_preload_metadata()
670 	    (vm_offset_t)(__endkernel) - (vm_offset_t)(__startkernel);  in fake_preload_metadata()
688  * Flush the D-cache for non-DMA I/O so that the I-cache can
702 	off = addr & (cacheline_size - 1);  in cpu_flush_dcache()
703 	addr -= off;  in cpu_flush_dcache()
710 		len -= cacheline_size;  in cpu_flush_dcache()
719 	tf = td->td_frame;  in ptrace_set_pc()
720 	tf->srr0 = (register_t)addr;  in ptrace_set_pc()
732 	if (td->td_md.md_spinlock_count == 0) {  in spinlock_enter()
735 		td->td_md.md_spinlock_count = 1;  in spinlock_enter()
736 		td->td_md.md_saved_msr = msr;  in spinlock_enter()
739 		td->td_md.md_spinlock_count++;  in spinlock_enter()
749 	msr = td->td_md.md_saved_msr;  in spinlock_exit()
750 	td->td_md.md_spinlock_count--;  in spinlock_exit()
751 	if (td->td_md.md_spinlock_count == 0) {  in spinlock_exit()
802 	tf = have_addr ? (struct trapframe *)addr : curthread->td_frame;  in DB_SHOW_COMMAND()
809 	for (i = 0; i < nitems(tf->fixreg); i++) {  in DB_SHOW_COMMAND()
810 		reg = tf->fixreg[i];  in DB_SHOW_COMMAND()
813 	reg = tf->lr;  in DB_SHOW_COMMAND()
815 	reg = tf->cr;  in DB_SHOW_COMMAND()
817 	reg = tf->xer;  in DB_SHOW_COMMAND()
819 	reg = tf->ctr;  in DB_SHOW_COMMAND()
821 	reg = tf->srr0;  in DB_SHOW_COMMAND()
823 	reg = tf->srr1;  in DB_SHOW_COMMAND()
825 	reg = tf->exc;  in DB_SHOW_COMMAND()
827 	reg = tf->dar;  in DB_SHOW_COMMAND()
830 	reg = tf->cpu.aim.dsisr;  in DB_SHOW_COMMAND()
833 	reg = tf->cpu.booke.esr;  in DB_SHOW_COMMAND()
835 	reg = tf->cpu.booke.dbcr0;  in DB_SHOW_COMMAND()
841 /* __stack_chk_fail_local() is called in secure-plt (32-bit). */