215 static int ps3_mm_get_repository_highmem(struct mem_region *r)  in ps3_mm_get_repository_highmem()  argument
221 	result = ps3_repository_read_highmem_info(0, &r->base, &r->size);  in ps3_mm_get_repository_highmem()
226 	if (!r->base || !r->size) {  in ps3_mm_get_repository_highmem()
231 	r->offset = r->base - map.rm.size;  in ps3_mm_get_repository_highmem()
234 	    __func__, __LINE__, r->base, r->size);  in ps3_mm_get_repository_highmem()
241 	r->size = r->base = r->offset = 0;  in ps3_mm_get_repository_highmem()
245 static int ps3_mm_set_repository_highmem(const struct mem_region *r)  in ps3_mm_set_repository_highmem()  argument
249 	return r ? ps3_repository_write_highmem_info(0, r->base, r->size) :  in ps3_mm_set_repository_highmem()
255  * @r: pointer to a struct mem_region to accept initialized values
262 static int ps3_mm_region_create(struct mem_region *r, unsigned long size)  in ps3_mm_region_create()  argument
267 	r->size = ALIGN_DOWN(size, 1 << PAGE_SHIFT_16M);  in ps3_mm_region_create()
270 	DBG("%s:%d actual     %llxh\n", __func__, __LINE__, r->size);  in ps3_mm_region_create()
272 		size - r->size, (size - r->size) / 1024 / 1024);  in ps3_mm_region_create()
274 	if (r->size == 0) {  in ps3_mm_region_create()
280 	result = lv1_allocate_memory(r->size, PAGE_SHIFT_16M, 0,  in ps3_mm_region_create()
281 		ALLOCATE_MEMORY_TRY_ALT_UNIT, &r->base, &muid);  in ps3_mm_region_create()
283 	if (result || r->base < map.rm.size) {  in ps3_mm_region_create()
289 	r->destroy = 1;  in ps3_mm_region_create()
290 	r->offset = r->base - map.rm.size;  in ps3_mm_region_create()
294 	r->size = r->base = r->offset = 0;  in ps3_mm_region_create()
300  * @r: pointer to struct mem_region
303 static void ps3_mm_region_destroy(struct mem_region *r)  in ps3_mm_region_destroy()  argument
307 	if (!r->destroy) {  in ps3_mm_region_destroy()
311 	if (r->base) {  in ps3_mm_region_destroy()
312 		result = lv1_release_memory(r->base);  in ps3_mm_region_destroy()
318 		r->size = r->base = r->offset = 0;  in ps3_mm_region_destroy()
331  * @r: pointer to dma region structure
335 static unsigned long dma_sb_lpar_to_bus(struct ps3_dma_region *r,  in dma_sb_lpar_to_bus()  argument
340 	BUG_ON(lpar_addr < r->offset);  in dma_sb_lpar_to_bus()
341 	BUG_ON(lpar_addr >= r->offset + r->len);  in dma_sb_lpar_to_bus()
342 	return r->bus_addr + lpar_addr - r->offset;  in dma_sb_lpar_to_bus()
346 static void  __maybe_unused _dma_dump_region(const struct ps3_dma_region *r,  in _dma_dump_region()  argument
349 	DBG("%s:%d: dev        %llu:%llu\n", func, line, r->dev->bus_id,  in _dma_dump_region()
350 		r->dev->dev_id);  in _dma_dump_region()
351 	DBG("%s:%d: page_size  %u\n", func, line, r->page_size);  in _dma_dump_region()
352 	DBG("%s:%d: bus_addr   %lxh\n", func, line, r->bus_addr);  in _dma_dump_region()
353 	DBG("%s:%d: len        %lxh\n", func, line, r->len);  in _dma_dump_region()
354 	DBG("%s:%d: offset     %lxh\n", func, line, r->offset);  in _dma_dump_region()
384 	DBG("%s:%d: r.dev        %llu:%llu\n", func, line,  in _dma_dump_chunk()
386 	DBG("%s:%d: r.bus_addr   %lxh\n", func, line, c->region->bus_addr);  in _dma_dump_chunk()
387 	DBG("%s:%d: r.page_size  %u\n", func, line, c->region->page_size);  in _dma_dump_chunk()
388 	DBG("%s:%d: r.len        %lxh\n", func, line, c->region->len);  in _dma_dump_chunk()
389 	DBG("%s:%d: r.offset     %lxh\n", func, line, c->region->offset);  in _dma_dump_chunk()
395 static struct dma_chunk * dma_find_chunk(struct ps3_dma_region *r,  in dma_find_chunk()  argument
399 	unsigned long aligned_bus = ALIGN_DOWN(bus_addr, 1 << r->page_size);  in dma_find_chunk()
401 					      1 << r->page_size);  in dma_find_chunk()
403 	list_for_each_entry(c, &r->chunk_list.head, link) {  in dma_find_chunk()
424 static struct dma_chunk *dma_find_chunk_lpar(struct ps3_dma_region *r,  in dma_find_chunk_lpar()  argument
428 	unsigned long aligned_lpar = ALIGN_DOWN(lpar_addr, 1 << r->page_size);  in dma_find_chunk_lpar()
430 					      1 << r->page_size);  in dma_find_chunk_lpar()
432 	list_for_each_entry(c, &r->chunk_list.head, link) {  in dma_find_chunk_lpar()
474 	struct ps3_dma_region *r = c->region;  in dma_ioc0_free_chunk()  local
477 	for (iopage = 0; iopage < (c->len >> r->page_size); iopage++) {  in dma_ioc0_free_chunk()
478 		offset = (1 << r->page_size) * iopage;  in dma_ioc0_free_chunk()
483 				       r->ioid,  in dma_ioc0_free_chunk()
488 		    r->ioid);  in dma_ioc0_free_chunk()
502  * @r: Pointer to a struct ps3_dma_region.
511 static int dma_sb_map_pages(struct ps3_dma_region *r, unsigned long phys_addr,  in dma_sb_map_pages()  argument
523 	c->region = r;  in dma_sb_map_pages()
525 	c->bus_addr = dma_sb_lpar_to_bus(r, c->lpar_addr);  in dma_sb_map_pages()
538 	list_add(&c->link, &r->chunk_list.head);  in dma_sb_map_pages()
551 static int dma_ioc0_map_pages(struct ps3_dma_region *r, unsigned long phys_addr,  in dma_ioc0_map_pages()  argument
568 	c->region = r;  in dma_ioc0_map_pages()
572 	if (list_empty(&r->chunk_list.head)) {  in dma_ioc0_map_pages()
574 		c->bus_addr = r->bus_addr;  in dma_ioc0_map_pages()
577 		last  = list_entry(r->chunk_list.head.next,  in dma_ioc0_map_pages()
587 	pages = len >> r->page_size;  in dma_ioc0_map_pages()
589 	    r->page_size, r->len, pages, iopte_flag);  in dma_ioc0_map_pages()
591 		offset = (1 << r->page_size) * iopage;  in dma_ioc0_map_pages()
595 				       r->ioid,  in dma_ioc0_map_pages()
604 		    r->ioid);  in dma_ioc0_map_pages()
608 	list_add(&c->link, &r->chunk_list.head);  in dma_ioc0_map_pages()
619 			      r->ioid,  in dma_ioc0_map_pages()
630  * @r: Pointer to a struct ps3_dma_region.
636 static int dma_sb_region_create(struct ps3_dma_region *r)  in dma_sb_region_create()  argument
643 	BUG_ON(!r);  in dma_sb_region_create()
645 	if (!r->dev->bus_id) {  in dma_sb_region_create()
647 			r->dev->bus_id, r->dev->dev_id);  in dma_sb_region_create()
652 	    __LINE__, r->len, r->page_size, r->offset);  in dma_sb_region_create()
654 	BUG_ON(!r->len);  in dma_sb_region_create()
655 	BUG_ON(!r->page_size);  in dma_sb_region_create()
656 	BUG_ON(!r->region_ops);  in dma_sb_region_create()
658 	INIT_LIST_HEAD(&r->chunk_list.head);  in dma_sb_region_create()
659 	spin_lock_init(&r->chunk_list.lock);  in dma_sb_region_create()
661 	result = lv1_allocate_device_dma_region(r->dev->bus_id, r->dev->dev_id,  in dma_sb_region_create()
662 		roundup_pow_of_two(r->len), r->page_size, r->region_type,  in dma_sb_region_create()
664 	r->bus_addr = bus_addr;  in dma_sb_region_create()
669 		r->len = r->bus_addr = 0;  in dma_sb_region_create()
675 static int dma_ioc0_region_create(struct ps3_dma_region *r)  in dma_ioc0_region_create()  argument
680 	INIT_LIST_HEAD(&r->chunk_list.head);  in dma_ioc0_region_create()
681 	spin_lock_init(&r->chunk_list.lock);  in dma_ioc0_region_create()
684 					 r->len,  in dma_ioc0_region_create()
685 					 r->page_size,  in dma_ioc0_region_create()
687 	r->bus_addr = bus_addr;  in dma_ioc0_region_create()
691 		r->len = r->bus_addr = 0;  in dma_ioc0_region_create()
694 	    r->len, r->page_size, r->bus_addr);  in dma_ioc0_region_create()
700  * @r: Pointer to a struct ps3_dma_region.
706 static int dma_sb_region_free(struct ps3_dma_region *r)  in dma_sb_region_free()  argument
712 	BUG_ON(!r);  in dma_sb_region_free()
714 	if (!r->dev->bus_id) {  in dma_sb_region_free()
716 			r->dev->bus_id, r->dev->dev_id);  in dma_sb_region_free()
720 	list_for_each_entry_safe(c, tmp, &r->chunk_list.head, link) {  in dma_sb_region_free()
725 	result = lv1_free_device_dma_region(r->dev->bus_id, r->dev->dev_id,  in dma_sb_region_free()
726 		r->bus_addr);  in dma_sb_region_free()
732 	r->bus_addr = 0;  in dma_sb_region_free()
737 static int dma_ioc0_region_free(struct ps3_dma_region *r)  in dma_ioc0_region_free()  argument
743 	list_for_each_entry_safe(c, n, &r->chunk_list.head, link) {  in dma_ioc0_region_free()
748 	result = lv1_release_io_segment(0, r->bus_addr);  in dma_ioc0_region_free()
754 	r->bus_addr = 0;  in dma_ioc0_region_free()
762  * @r: Pointer to a struct ps3_dma_region.
771 static int dma_sb_map_area(struct ps3_dma_region *r, unsigned long virt_addr,  in dma_sb_map_area()  argument
780 	unsigned long aligned_phys = ALIGN_DOWN(phys_addr, 1 << r->page_size);  in dma_sb_map_area()
782 					      1 << r->page_size);  in dma_sb_map_area()
783 	*bus_addr = dma_sb_lpar_to_bus(r, ps3_mm_phys_to_lpar(phys_addr));  in dma_sb_map_area()
799 	spin_lock_irqsave(&r->chunk_list.lock, flags);  in dma_sb_map_area()
800 	c = dma_find_chunk(r, *bus_addr, len);  in dma_sb_map_area()
806 		spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_sb_map_area()
810 	result = dma_sb_map_pages(r, aligned_phys, aligned_len, &c, iopte_flag);  in dma_sb_map_area()
816 		spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_sb_map_area()
822 	spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_sb_map_area()
826 static int dma_ioc0_map_area(struct ps3_dma_region *r, unsigned long virt_addr,  in dma_ioc0_map_area()  argument
835 	unsigned long aligned_phys = ALIGN_DOWN(phys_addr, 1 << r->page_size);  in dma_ioc0_map_area()
837 					      1 << r->page_size);  in dma_ioc0_map_area()
844 	spin_lock_irqsave(&r->chunk_list.lock, flags);  in dma_ioc0_map_area()
845 	c = dma_find_chunk_lpar(r, ps3_mm_phys_to_lpar(phys_addr), len);  in dma_ioc0_map_area()
852 		spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_ioc0_map_area()
856 	result = dma_ioc0_map_pages(r, aligned_phys, aligned_len, &c,  in dma_ioc0_map_area()
863 		spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_ioc0_map_area()
871 	spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_ioc0_map_area()
877  * @r: Pointer to a struct ps3_dma_region.
884 static int dma_sb_unmap_area(struct ps3_dma_region *r, dma_addr_t bus_addr,  in dma_sb_unmap_area()  argument
890 	spin_lock_irqsave(&r->chunk_list.lock, flags);  in dma_sb_unmap_area()
891 	c = dma_find_chunk(r, bus_addr, len);  in dma_sb_unmap_area()
895 			1 << r->page_size);  in dma_sb_unmap_area()
897 			- aligned_bus, 1 << r->page_size);  in dma_sb_unmap_area()
916 	spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_sb_unmap_area()
920 static int dma_ioc0_unmap_area(struct ps3_dma_region *r,  in dma_ioc0_unmap_area()  argument
927 	spin_lock_irqsave(&r->chunk_list.lock, flags);  in dma_ioc0_unmap_area()
928 	c = dma_find_chunk(r, bus_addr, len);  in dma_ioc0_unmap_area()
932 							1 << r->page_size);  in dma_ioc0_unmap_area()
935 						      1 << r->page_size);  in dma_ioc0_unmap_area()
954 	spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_ioc0_unmap_area()
961  * @r: Pointer to a struct ps3_dma_region.
967 static int dma_sb_region_create_linear(struct ps3_dma_region *r)  in dma_sb_region_create_linear()  argument
973 	if (r->len > 16*1024*1024) {	/* FIXME: need proper fix */  in dma_sb_region_create_linear()
975 		if (r->page_size != PS3_DMA_16M) {  in dma_sb_region_create_linear()
978 			r->page_size = PS3_DMA_16M;  in dma_sb_region_create_linear()
979 			r->len = ALIGN(r->len, 1 << r->page_size);  in dma_sb_region_create_linear()
983 	result = dma_sb_region_create(r);  in dma_sb_region_create_linear()
986 	if (r->offset < map.rm.size) {  in dma_sb_region_create_linear()
988 		virt_addr = map.rm.base + r->offset;  in dma_sb_region_create_linear()
989 		len = map.rm.size - r->offset;  in dma_sb_region_create_linear()
990 		if (len > r->len)  in dma_sb_region_create_linear()
991 			len = r->len;  in dma_sb_region_create_linear()
992 		result = dma_sb_map_area(r, virt_addr, len, &tmp,  in dma_sb_region_create_linear()
998 	if (r->offset + r->len > map.rm.size) {  in dma_sb_region_create_linear()
1001 		len = r->len;  in dma_sb_region_create_linear()
1002 		if (r->offset >= map.rm.size)  in dma_sb_region_create_linear()
1003 			virt_addr += r->offset - map.rm.size;  in dma_sb_region_create_linear()
1005 			len -= map.rm.size - r->offset;  in dma_sb_region_create_linear()
1006 		result = dma_sb_map_area(r, virt_addr, len, &tmp,  in dma_sb_region_create_linear()
1017  * @r: Pointer to a struct ps3_dma_region.
1022 static int dma_sb_region_free_linear(struct ps3_dma_region *r)  in dma_sb_region_free_linear()  argument
1028 	if (r->offset < map.rm.size) {  in dma_sb_region_free_linear()
1030 		lpar_addr = map.rm.base + r->offset;  in dma_sb_region_free_linear()
1031 		len = map.rm.size - r->offset;  in dma_sb_region_free_linear()
1032 		if (len > r->len)  in dma_sb_region_free_linear()
1033 			len = r->len;  in dma_sb_region_free_linear()
1034 		bus_addr = dma_sb_lpar_to_bus(r, lpar_addr);  in dma_sb_region_free_linear()
1035 		result = dma_sb_unmap_area(r, bus_addr, len);  in dma_sb_region_free_linear()
1039 	if (r->offset + r->len > map.rm.size) {  in dma_sb_region_free_linear()
1042 		len = r->len;  in dma_sb_region_free_linear()
1043 		if (r->offset >= map.rm.size)  in dma_sb_region_free_linear()
1044 			lpar_addr += r->offset - map.rm.size;  in dma_sb_region_free_linear()
1046 			len -= map.rm.size - r->offset;  in dma_sb_region_free_linear()
1047 		bus_addr = dma_sb_lpar_to_bus(r, lpar_addr);  in dma_sb_region_free_linear()
1048 		result = dma_sb_unmap_area(r, bus_addr, len);  in dma_sb_region_free_linear()
1052 	result = dma_sb_region_free(r);  in dma_sb_region_free_linear()
1060  * @r: Pointer to a struct ps3_dma_region.
1070 static int dma_sb_map_area_linear(struct ps3_dma_region *r,  in dma_sb_map_area_linear()  argument
1076 	*bus_addr = dma_sb_lpar_to_bus(r, ps3_mm_phys_to_lpar(phys_addr));  in dma_sb_map_area_linear()
1082  * @r: Pointer to a struct ps3_dma_region.
1089 static int dma_sb_unmap_area_linear(struct ps3_dma_region *r,  in dma_sb_unmap_area_linear()  argument
1117 	struct ps3_dma_region *r, enum ps3_dma_page_size page_size,  in ps3_dma_region_init()  argument
1124 	r->dev = dev;  in ps3_dma_region_init()
1125 	r->page_size = page_size;  in ps3_dma_region_init()
1126 	r->region_type = region_type;  in ps3_dma_region_init()
1127 	r->offset = lpar_addr;  in ps3_dma_region_init()
1128 	if (r->offset >= map.rm.size)  in ps3_dma_region_init()
1129 		r->offset -= map.r1.offset;  in ps3_dma_region_init()
1130 	r->len = len ? len : ALIGN(map.total, 1 << r->page_size);  in ps3_dma_region_init()
1134 		r->region_ops =  (USE_DYNAMIC_DMA)  in ps3_dma_region_init()
1139 		r->region_ops = &ps3_dma_ioc0_region_ops;  in ps3_dma_region_init()
1149 int ps3_dma_region_create(struct ps3_dma_region *r)  in ps3_dma_region_create()  argument
1151 	BUG_ON(!r);  in ps3_dma_region_create()
1152 	BUG_ON(!r->region_ops);  in ps3_dma_region_create()
1153 	BUG_ON(!r->region_ops->create);  in ps3_dma_region_create()
1154 	return r->region_ops->create(r);  in ps3_dma_region_create()
1158 int ps3_dma_region_free(struct ps3_dma_region *r)  in ps3_dma_region_free()  argument
1160 	BUG_ON(!r);  in ps3_dma_region_free()
1161 	BUG_ON(!r->region_ops);  in ps3_dma_region_free()
1162 	BUG_ON(!r->region_ops->free);  in ps3_dma_region_free()
1163 	return r->region_ops->free(r);  in ps3_dma_region_free()
1167 int ps3_dma_map(struct ps3_dma_region *r, unsigned long virt_addr,  in ps3_dma_map()  argument
1171 	return r->region_ops->map(r, virt_addr, len, bus_addr, iopte_flag);  in ps3_dma_map()
1174 int ps3_dma_unmap(struct ps3_dma_region *r, dma_addr_t bus_addr,  in ps3_dma_unmap()  argument
1177 	return r->region_ops->unmap(r, bus_addr, len);  in ps3_dma_unmap()