1 /* SPDX-License-Identifier: GPL-2.0-or-later */
28  * enum memblock_flags - definition of memory region attributes
30  * @MEMBLOCK_HOTPLUG: memory region indicated in the firmware-provided memory
40  * via a driver, and never indicated in the firmware-provided memory map as
56  * struct memblock_region - represents a memory region
72  * struct memblock_type - collection of memory regions of certain type
88  * struct memblock - memblock allocator metadata
123 void memblock_trim_memory(phys_addr_t align);
164  * for_each_physmem_range - iterate through physmem areas not included in type.
168  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
177  * __for_each_mem_range - iterate through memblock areas from type_a and not
185  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
197  * __for_each_mem_range_rev - reverse iterate through memblock areas from
205  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
218  * for_each_mem_range - iterate through memory areas.
221  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
229  * for_each_mem_range_rev - reverse iterate through memblock areas from
233  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
241  * for_each_reserved_mem_range - iterate over all reserved memblock areas
244  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
255 	return m->flags & MEMBLOCK_HOTPLUG;  in memblock_is_hotpluggable()
260 	return m->flags & MEMBLOCK_MIRROR;  in memblock_is_mirror()
265 	return m->flags & MEMBLOCK_NOMAP;  in memblock_is_nomap()
270 	return m->flags & MEMBLOCK_RSRV_NOINIT;  in memblock_is_reserved_noinit()
275 	return m->flags & MEMBLOCK_DRIVER_MANAGED;  in memblock_is_driver_managed()
284  * for_each_mem_pfn_range - early memory pfn range iterator
288  * @p_end: ptr to ulong for end pfn of the range, can be %NULL
294 	for (i = -1, __next_mem_pfn_range(&i, nid, p_start, p_end, p_nid); \
303  * for_each_free_mem_pfn_range_in_zone_from - iterate through zone specific
308  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
321  * for_each_free_mem_range - iterate through free memblock areas
326  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
337  * for_each_free_mem_range_reverse - rev-iterate through free memblock areas
342  * @p_end: ptr to phys_addr_t for end address of the range, can be %NULL
359 	r->nid = nid;  in memblock_set_region_node()
364 	return r->nid;  in memblock_get_region_node()
393 phys_addr_t memblock_phys_alloc_range(phys_addr_t size, phys_addr_t align,
394 				      phys_addr_t start, phys_addr_t end);
396 				      phys_addr_t align, phys_addr_t start,
397 				      phys_addr_t end, int nid, bool exact_nid);
398 phys_addr_t memblock_phys_alloc_try_nid(phys_addr_t size, phys_addr_t align, int nid);
401 						       phys_addr_t align)  in memblock_phys_alloc()  argument
403 	return memblock_phys_alloc_range(size, align, 0,  in memblock_phys_alloc()
407 void *memblock_alloc_exact_nid_raw(phys_addr_t size, phys_addr_t align,
410 void *memblock_alloc_try_nid_raw(phys_addr_t size, phys_addr_t align,
413 void *memblock_alloc_try_nid(phys_addr_t size, phys_addr_t align,
417 static __always_inline void *memblock_alloc(phys_addr_t size, phys_addr_t align)  in memblock_alloc()  argument
419 	return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,  in memblock_alloc()
423 void *__memblock_alloc_or_panic(phys_addr_t size, phys_addr_t align,
426 #define memblock_alloc_or_panic(size, align)    \  argument
427 	 __memblock_alloc_or_panic(size, align, __func__)
430 					       phys_addr_t align)  in memblock_alloc_raw()  argument
432 	return memblock_alloc_try_nid_raw(size, align, MEMBLOCK_LOW_LIMIT,  in memblock_alloc_raw()
438 						phys_addr_t align,  in memblock_alloc_from()  argument
441 	return memblock_alloc_try_nid(size, align, min_addr,  in memblock_alloc_from()
446 					       phys_addr_t align)  in memblock_alloc_low()  argument
448 	return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,  in memblock_alloc_low()
453 						phys_addr_t align, int nid)  in memblock_alloc_node()  argument
455 	return memblock_alloc_try_nid(size, align, MEMBLOCK_LOW_LIMIT,  in memblock_alloc_node()
460  * Set the allocation direction to bottom-up or top-down.
468  * Check if the allocation direction is bottom-up or not.
470  * in bottom-up direction.
494  * memblock_set_current_limit - Set the current allocation limit to allow
513  * memblock_region_memory_base_pfn - get the lowest pfn of the memory region
520 	return PFN_UP(reg->base);  in memblock_region_memory_base_pfn()
524  * memblock_region_memory_end_pfn - get the end pfn of the memory region
531 	return PFN_DOWN(reg->base + reg->size);  in memblock_region_memory_end_pfn()
535  * memblock_region_reserved_base_pfn - get the lowest pfn of the reserved region
542 	return PFN_DOWN(reg->base);  in memblock_region_reserved_base_pfn()
546  * memblock_region_reserved_end_pfn - get the end pfn of the reserved region
553 	return PFN_UP(reg->base + reg->size);  in memblock_region_reserved_end_pfn()
557  * for_each_mem_region - iterate over memory regions
566  * for_each_reserved_mem_region - itereate over reserved memory regions
598 void early_memtest(phys_addr_t start, phys_addr_t end);
601 static inline void early_memtest(phys_addr_t start, phys_addr_t end) { }  in early_memtest()  argument