1 // SPDX-License-Identifier: GPL-2.0-only
5  *  Copyright (C) 1995-2005 Russell King
21 #include <linux/dma-map-ops.h>
27 #include <asm/mach-types.h>
40 #include <asm/mach/map.h>
57 	phys_initrd_start = __virt_to_phys(tag->u.initrd.start);  in parse_tag_initrd()
58 	phys_initrd_size = tag->u.initrd.size;  in parse_tag_initrd()
66 	phys_initrd_start = tag->u.initrd.start;  in parse_tag_initrd2()
67 	phys_initrd_size = tag->u.initrd.size;  in parse_tag_initrd2()
88  * The DMA mask corresponding to the maximum bus address allocatable
89  * using GFP_DMA.  The default here places no restriction on DMA
90  * allocations.  This must be the smallest DMA mask in the system,
100 	if (mdesc->dma_zone_size) {  in setup_dma_zone()
101 		arm_dma_zone_size = mdesc->dma_zone_size;  in setup_dma_zone()
102 		arm_dma_limit = PHYS_OFFSET + arm_dma_zone_size - 1;  in setup_dma_zone()
135 	 * memory chunk there still will be a memory map entry for it  in pfn_valid()
136 	 * because we round freed memory map to the pageblock boundaries.  in pfn_valid()
185 	size = phys_initrd_size + (phys_initrd_start - start);  in arm_initrd_init()
189 		pr_err("INITRD: 0x%08llx+0x%08lx is not a memory region - disabling initrd\n",  in arm_initrd_init()
195 		pr_err("INITRD: 0x%08llx+0x%08lx overlaps in-use memory region - disabling initrd\n",  in arm_initrd_init()
217 		pr_info("CPU%u: detected I-Cache line size mismatch, workaround enabled\n",  in check_cpu_icache_size()
227 	memblock_reserve(__pa(KERNEL_START), KERNEL_END - KERNEL_START);  in arm_memblock_init()
234 	if (mdesc->reserve)  in arm_memblock_init()
235 		mdesc->reserve();  in arm_memblock_init()
239 	/* reserve memory for DMA contiguous allocations */  in arm_memblock_init()
262 	 * Now free the memory - free_area_init needs  in bootmem_init()
276 	for (; count != 0; count -= 4)  in poison_init_mem()
322 	set_max_mapnr(pfn_to_page(max_pfn) - mem_map);  in mem_init()
328 	/* now that our DMA memory is actually so designated, we can free it */  in mem_init()
329 	free_reserved_area(__va(PHYS_OFFSET), swapper_pg_dir, -1, NULL);  in mem_init()
359 /* First section-aligned location at or after __start_rodata. */
365 		.name	= "pre-text NX",
409  * safe to be called with preemption disabled, as under stop_machine().
451 			pr_err("BUG: %s section %lx-%lx not aligned to %lx\n",  in set_section_perms()
476 		if (t->flags & PF_KTHREAD)  in update_sections_early()
479 			if (s->mm)  in update_sections_early()
480 				set_section_perms(perms, n, true, s->mm);  in update_sections_early()
482 	set_section_perms(perms, n, true, current->active_mm);  in update_sections_early()
517 	poison_init_mem(__init_begin, __init_end - __init_begin);  in free_initmem()
519 		free_initmem_default(-1);  in free_initmem()
530 	poison_init_mem((void *)start, PAGE_ALIGN(end) - start);  in free_initrd_mem()
531 	free_reserved_area((void *)start, (void *)end, -1, "initrd");  in free_initrd_mem()