1 // SPDX-License-Identifier: GPL-2.0
36 						    unsigned long size,  in early_memremap_pgprot_adjust()  argument
77 		slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i);  in early_ioremap_setup()
100 __early_ioremap(resource_size_t phys_addr, unsigned long size, pgprot_t prot)  in __early_ioremap()  argument
106 	int i, slot;  in __early_ioremap()  local
110 	slot = -1;  in __early_ioremap()
113 			slot = i;  in __early_ioremap()
118 	if (WARN(slot < 0, "%s(%pa, %08lx) not found slot\n",  in __early_ioremap()
119 		 __func__, &phys_addr, size))  in __early_ioremap()
122 	/* Don't allow wraparound or zero size */  in __early_ioremap()
123 	last_addr = phys_addr + size - 1;  in __early_ioremap()
124 	if (WARN_ON(!size || last_addr < phys_addr))  in __early_ioremap()
127 	prev_size[slot] = size;  in __early_ioremap()
129 	 * Mappings have to be page-aligned  in __early_ioremap()
133 	size = PAGE_ALIGN(last_addr + 1) - phys_addr;  in __early_ioremap()
138 	nrpages = size >> PAGE_SHIFT;  in __early_ioremap()
145 	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*slot;  in __early_ioremap()
152 		--idx;  in __early_ioremap()
153 		--nrpages;  in __early_ioremap()
156 	     __func__, &phys_addr, size, slot, offset, slot_virt[slot]);  in __early_ioremap()
158 	prev_map[slot] = (void __iomem *)(offset + slot_virt[slot]);  in __early_ioremap()
159 	return prev_map[slot];  in __early_ioremap()
162 void __init early_iounmap(void __iomem *addr, unsigned long size)  in early_iounmap()  argument
168 	int i, slot;  in early_iounmap()  local
170 	slot = -1;  in early_iounmap()
173 			slot = i;  in early_iounmap()
178 	if (WARN(slot < 0, "%s(%p, %08lx) not found slot\n",  in early_iounmap()
179 		  __func__, addr, size))  in early_iounmap()
182 	if (WARN(prev_size[slot] != size,  in early_iounmap()
183 		 "%s(%p, %08lx) [%d] size not consistent %08lx\n",  in early_iounmap()
184 		  __func__, addr, size, slot, prev_size[slot]))  in early_iounmap()
188 	      __func__, addr, size, slot);  in early_iounmap()
195 	nrpages = PAGE_ALIGN(offset + size) >> PAGE_SHIFT;  in early_iounmap()
197 	idx = FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*slot;  in early_iounmap()
203 		--idx;  in early_iounmap()
204 		--nrpages;  in early_iounmap()
206 	prev_map[slot] = NULL;  in early_iounmap()
211 early_ioremap(resource_size_t phys_addr, unsigned long size)  in early_ioremap()  argument
213 	return __early_ioremap(phys_addr, size, FIXMAP_PAGE_IO);  in early_ioremap()
218 early_memremap(resource_size_t phys_addr, unsigned long size)  in early_memremap()  argument
220 	pgprot_t prot = early_memremap_pgprot_adjust(phys_addr, size,  in early_memremap()
223 	return (__force void *)__early_ioremap(phys_addr, size, prot);  in early_memremap()
227 early_memremap_ro(resource_size_t phys_addr, unsigned long size)  in early_memremap_ro()  argument
229 	pgprot_t prot = early_memremap_pgprot_adjust(phys_addr, size,  in early_memremap_ro()
232 	return (__force void *)__early_ioremap(phys_addr, size, prot);  in early_memremap_ro()
238 early_memremap_prot(resource_size_t phys_addr, unsigned long size,  in early_memremap_prot()  argument
241 	return (__force void *)__early_ioremap(phys_addr, size,  in early_memremap_prot()
249  * If no empty slot, handle that and return -ENOMEM.
251 int __init copy_from_early_mem(void *dest, phys_addr_t src, unsigned long size)  in copy_from_early_mem()  argument
256 	while (size) {  in copy_from_early_mem()
258 		clen = size;  in copy_from_early_mem()
259 		if (clen > MAX_MAP_CHUNK - slop)  in copy_from_early_mem()
260 			clen = MAX_MAP_CHUNK - slop;  in copy_from_early_mem()
263 			return -ENOMEM;  in copy_from_early_mem()
268 		size -= clen;  in copy_from_early_mem()
276 early_ioremap(resource_size_t phys_addr, unsigned long size)  in early_ioremap()  argument
283 early_memremap(resource_size_t phys_addr, unsigned long size)  in early_memremap()  argument
288 early_memremap_ro(resource_size_t phys_addr, unsigned long size)  in early_memremap_ro()  argument
293 void __init early_iounmap(void __iomem *addr, unsigned long size)  in early_iounmap()  argument
300 void __init early_memunmap(void *addr, unsigned long size)  in early_memunmap()  argument
302 	early_iounmap((__force void __iomem *)addr, size);  in early_memunmap()