1 // SPDX-License-Identifier: GPL-2.0-only
3  * Based on arch/arm/kernel/setup.c
5  * Copyright (C) 1995-2001 Russell King
102  * smp_build_mpidr_hash - Pre-compute shifts required at each affinity
112 	 * Pre-scan the list of MPIDRS and filter out bits that do  in smp_build_mpidr_hash()
130 		fs[i] = affinity ? ffs(affinity) - 1 : 0;  in smp_build_mpidr_hash()
131 		bits[i] = ls - fs[i];  in smp_build_mpidr_hash()
144 	mpidr_hash.shift_aff[1] = MPIDR_LEVEL_SHIFT(1) + fs[1] - bits[0];  in smp_build_mpidr_hash()
145 	mpidr_hash.shift_aff[2] = MPIDR_LEVEL_SHIFT(2) + fs[2] -  in smp_build_mpidr_hash()
148 				  fs[3] - (bits[2] + bits[1] + bits[0]);  in smp_build_mpidr_hash()
193 			"The dtb must be 8-byte aligned and must not exceed 2 MB in size\n"  in setup_machine_fdt()
200 		 * or else we could end-up printing non-initialized data, etc.  in setup_machine_fdt()
206 	/* Early fixups are done, map the FDT as read-only now */  in setup_machine_fdt()
225 	kernel_code.end     = __pa_symbol(__init_begin - 1);  in request_standard_resources()
227 	kernel_data.end     = __pa_symbol(_end - 1);  in request_standard_resources()
240 			res->name  = "reserved";  in request_standard_resources()
241 			res->flags = IORESOURCE_MEM;  in request_standard_resources()
242 			res->start = __pfn_to_phys(memblock_region_reserved_base_pfn(region));  in request_standard_resources()
243 			res->end = __pfn_to_phys(memblock_region_reserved_end_pfn(region)) - 1;  in request_standard_resources()
245 			res->name  = "System RAM";  in request_standard_resources()
246 			res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;  in request_standard_resources()
247 			res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));  in request_standard_resources()
248 			res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;  in request_standard_resources()
263 		if (!memblock_is_region_reserved(mem->start, mem_size))  in reserve_memblock_reserved_regions()
269 			start = max(PFN_PHYS(PFN_DOWN(r_start)), mem->start);  in reserve_memblock_reserved_regions()
270 			end = min(PFN_PHYS(PFN_UP(r_end)) - 1, mem->end);  in reserve_memblock_reserved_regions()
272 			if (start > mem->end || end < mem->start)  in reserve_memblock_reserved_regions()
283 u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
297 	 * If know now we are going to need KPTI then use non-global  in setup_arch()
316 	 * Unmask asynchronous aborts and fiq after bringing up possible  in setup_arch()
340 	/* Parse the ACPI tables for possible boot-time configuration */  in setup_arch()
376 		pr_err("WARNING: x1-x3 nonzero in violation of boot protocol:\n"  in setup_arch()
388 	if (ops && ops->cpu_can_disable)  in cpu_can_disable()
389 		return ops->cpu_can_disable(cpu);  in cpu_can_disable()
400 		cpu->hotpluggable = cpu_can_disable(i);  in topology_init()