1 // SPDX-License-Identifier: GPL-2.0-only
5  * Copyright (C) 1995-2001 Russell King
105  * smp_build_mpidr_hash - Pre-compute shifts required at each affinity
112 	u32 i, affinity, fs[4], bits[4], ls;  in smp_build_mpidr_hash()  local
115 	 * Pre-scan the list of MPIDRS and filter out bits that do  in smp_build_mpidr_hash()
116 	 * not contribute to affinity levels, ie they never toggle.  in smp_build_mpidr_hash()
122 	 * Find and stash the last and first bit set at all affinity levels to  in smp_build_mpidr_hash()
126 		affinity = MPIDR_AFFINITY_LEVEL(mask, i);  in smp_build_mpidr_hash()
130 		 * to express the affinity level.  in smp_build_mpidr_hash()
132 		ls = fls(affinity);  in smp_build_mpidr_hash()
133 		fs[i] = affinity ? ffs(affinity) - 1 : 0;  in smp_build_mpidr_hash()
134 		bits[i] = ls - fs[i];  in smp_build_mpidr_hash()
138 	 * significant bits at each affinity level and by shifting  in smp_build_mpidr_hash()
147 	mpidr_hash.shift_aff[1] = MPIDR_LEVEL_SHIFT(1) + fs[1] - bits[0];  in smp_build_mpidr_hash()
148 	mpidr_hash.shift_aff[2] = MPIDR_LEVEL_SHIFT(2) + fs[2] -  in smp_build_mpidr_hash()
151 				  fs[3] - (bits[2] + bits[1] + bits[0]);  in smp_build_mpidr_hash()
181 			"The dtb must be 8-byte aligned and must not exceed 2 MB in size\n"  in setup_machine_fdt()
188 		 * or else we could end-up printing non-initialized data, etc.  in setup_machine_fdt()
194 	/* Early fixups are done, map the FDT as read-only now */  in setup_machine_fdt()
213 	kernel_code.end     = __pa_symbol(__init_begin - 1);  in request_standard_resources()
215 	kernel_data.end     = __pa_symbol(_end - 1);  in request_standard_resources()
228 			res->name  = "reserved";  in request_standard_resources()
229 			res->flags = IORESOURCE_MEM;  in request_standard_resources()
230 			res->start = __pfn_to_phys(memblock_region_reserved_base_pfn(region));  in request_standard_resources()
231 			res->end = __pfn_to_phys(memblock_region_reserved_end_pfn(region)) - 1;  in request_standard_resources()
233 			res->name  = "System RAM";  in request_standard_resources()
234 			res->flags = IORESOURCE_SYSTEM_RAM | IORESOURCE_BUSY;  in request_standard_resources()
235 			res->start = __pfn_to_phys(memblock_region_memory_base_pfn(region));  in request_standard_resources()
236 			res->end = __pfn_to_phys(memblock_region_memory_end_pfn(region)) - 1;  in request_standard_resources()
251 		if (!memblock_is_region_reserved(mem->start, mem_size))  in reserve_memblock_reserved_regions()
257 			start = max(PFN_PHYS(PFN_DOWN(r_start)), mem->start);  in reserve_memblock_reserved_regions()
258 			end = min(PFN_PHYS(PFN_UP(r_end)) - 1, mem->end);  in reserve_memblock_reserved_regions()
260 			if (start > mem->end || end < mem->start)  in reserve_memblock_reserved_regions()
271 u64 __cpu_logical_map[NR_CPUS] = { [0 ... NR_CPUS-1] = INVALID_HWID };
335 	/* Parse the ACPI tables for possible boot-time configuration */  in setup_arch()
368 		pr_err("WARNING: x1-x3 nonzero in violation of boot protocol:\n"  in setup_arch()
380 	if (ops && ops->cpu_can_disable)  in cpu_can_disable()
381 		return ops->cpu_can_disable(cpu);  in cpu_can_disable()
428 		panic("Non-EFI boot detected with MMU and caches enabled");  in check_mmu_enabled_at_boot()