218 static int ps3_mm_get_repository_highmem(struct mem_region *r)  in ps3_mm_get_repository_highmem()  argument
224 	result = ps3_repository_read_highmem_info(0, &r->base, &r->size);  in ps3_mm_get_repository_highmem()
229 	if (!r->base || !r->size) {  in ps3_mm_get_repository_highmem()
234 	r->offset = r->base - map.rm.size;  in ps3_mm_get_repository_highmem()
237 	    __func__, __LINE__, r->base, r->size);  in ps3_mm_get_repository_highmem()
244 	r->size = r->base = r->offset = 0;  in ps3_mm_get_repository_highmem()
248 static int ps3_mm_set_repository_highmem(const struct mem_region *r)  in ps3_mm_set_repository_highmem()  argument
252 	return r ? ps3_repository_write_highmem_info(0, r->base, r->size) :  in ps3_mm_set_repository_highmem()
258  * @r: pointer to a struct mem_region to accept initialized values
265 static int ps3_mm_region_create(struct mem_region *r, unsigned long size)  in ps3_mm_region_create()  argument
270 	r->size = ALIGN_DOWN(size, 1 << PAGE_SHIFT_16M);  in ps3_mm_region_create()
273 	DBG("%s:%d actual     %llxh\n", __func__, __LINE__, r->size);  in ps3_mm_region_create()
275 		size - r->size, (size - r->size) / 1024 / 1024);  in ps3_mm_region_create()
277 	if (r->size == 0) {  in ps3_mm_region_create()
283 	result = lv1_allocate_memory(r->size, PAGE_SHIFT_16M, 0,  in ps3_mm_region_create()
284 		ALLOCATE_MEMORY_TRY_ALT_UNIT, &r->base, &muid);  in ps3_mm_region_create()
286 	if (result || r->base < map.rm.size) {  in ps3_mm_region_create()
292 	r->destroy = 1;  in ps3_mm_region_create()
293 	r->offset = r->base - map.rm.size;  in ps3_mm_region_create()
297 	r->size = r->base = r->offset = 0;  in ps3_mm_region_create()
303  * @r: pointer to struct mem_region
306 static void ps3_mm_region_destroy(struct mem_region *r)  in ps3_mm_region_destroy()  argument
310 	if (!r->destroy) {  in ps3_mm_region_destroy()
314 	if (r->base) {  in ps3_mm_region_destroy()
315 		result = lv1_release_memory(r->base);  in ps3_mm_region_destroy()
321 		r->size = r->base = r->offset = 0;  in ps3_mm_region_destroy()
334  * @r: pointer to dma region structure
338 static unsigned long dma_sb_lpar_to_bus(struct ps3_dma_region *r,  in dma_sb_lpar_to_bus()  argument
343 	BUG_ON(lpar_addr < r->offset);  in dma_sb_lpar_to_bus()
344 	BUG_ON(lpar_addr >= r->offset + r->len);  in dma_sb_lpar_to_bus()
345 	return r->bus_addr + lpar_addr - r->offset;  in dma_sb_lpar_to_bus()
349 static void  __maybe_unused _dma_dump_region(const struct ps3_dma_region *r,  in _dma_dump_region()  argument
352 	DBG("%s:%d: dev        %llu:%llu\n", func, line, r->dev->bus_id,  in _dma_dump_region()
353 		r->dev->dev_id);  in _dma_dump_region()
354 	DBG("%s:%d: page_size  %u\n", func, line, r->page_size);  in _dma_dump_region()
355 	DBG("%s:%d: bus_addr   %lxh\n", func, line, r->bus_addr);  in _dma_dump_region()
356 	DBG("%s:%d: len        %lxh\n", func, line, r->len);  in _dma_dump_region()
357 	DBG("%s:%d: offset     %lxh\n", func, line, r->offset);  in _dma_dump_region()
387 	DBG("%s:%d: r.dev        %llu:%llu\n", func, line,  in _dma_dump_chunk()
389 	DBG("%s:%d: r.bus_addr   %lxh\n", func, line, c->region->bus_addr);  in _dma_dump_chunk()
390 	DBG("%s:%d: r.page_size  %u\n", func, line, c->region->page_size);  in _dma_dump_chunk()
391 	DBG("%s:%d: r.len        %lxh\n", func, line, c->region->len);  in _dma_dump_chunk()
392 	DBG("%s:%d: r.offset     %lxh\n", func, line, c->region->offset);  in _dma_dump_chunk()
398 static struct dma_chunk * dma_find_chunk(struct ps3_dma_region *r,  in dma_find_chunk()  argument
402 	unsigned long aligned_bus = ALIGN_DOWN(bus_addr, 1 << r->page_size);  in dma_find_chunk()
404 					      1 << r->page_size);  in dma_find_chunk()
406 	list_for_each_entry(c, &r->chunk_list.head, link) {  in dma_find_chunk()
427 static struct dma_chunk *dma_find_chunk_lpar(struct ps3_dma_region *r,  in dma_find_chunk_lpar()  argument
431 	unsigned long aligned_lpar = ALIGN_DOWN(lpar_addr, 1 << r->page_size);  in dma_find_chunk_lpar()
433 					      1 << r->page_size);  in dma_find_chunk_lpar()
435 	list_for_each_entry(c, &r->chunk_list.head, link) {  in dma_find_chunk_lpar()
477 	struct ps3_dma_region *r = c->region;  in dma_ioc0_free_chunk()  local
480 	for (iopage = 0; iopage < (c->len >> r->page_size); iopage++) {  in dma_ioc0_free_chunk()
481 		offset = (1 << r->page_size) * iopage;  in dma_ioc0_free_chunk()
486 				       r->ioid,  in dma_ioc0_free_chunk()
491 		    r->ioid);  in dma_ioc0_free_chunk()
505  * @r: Pointer to a struct ps3_dma_region.
514 static int dma_sb_map_pages(struct ps3_dma_region *r, unsigned long phys_addr,  in dma_sb_map_pages()  argument
526 	c->region = r;  in dma_sb_map_pages()
528 	c->bus_addr = dma_sb_lpar_to_bus(r, c->lpar_addr);  in dma_sb_map_pages()
541 	list_add(&c->link, &r->chunk_list.head);  in dma_sb_map_pages()
554 static int dma_ioc0_map_pages(struct ps3_dma_region *r, unsigned long phys_addr,  in dma_ioc0_map_pages()  argument
571 	c->region = r;  in dma_ioc0_map_pages()
575 	if (list_empty(&r->chunk_list.head)) {  in dma_ioc0_map_pages()
577 		c->bus_addr = r->bus_addr;  in dma_ioc0_map_pages()
580 		last  = list_entry(r->chunk_list.head.next,  in dma_ioc0_map_pages()
590 	pages = len >> r->page_size;  in dma_ioc0_map_pages()
592 	    r->page_size, r->len, pages, iopte_flag);  in dma_ioc0_map_pages()
594 		offset = (1 << r->page_size) * iopage;  in dma_ioc0_map_pages()
598 				       r->ioid,  in dma_ioc0_map_pages()
607 		    r->ioid);  in dma_ioc0_map_pages()
611 	list_add(&c->link, &r->chunk_list.head);  in dma_ioc0_map_pages()
622 			      r->ioid,  in dma_ioc0_map_pages()
633  * @r: Pointer to a struct ps3_dma_region.
639 static int dma_sb_region_create(struct ps3_dma_region *r)  in dma_sb_region_create()  argument
646 	BUG_ON(!r);  in dma_sb_region_create()
648 	if (!r->dev->bus_id) {  in dma_sb_region_create()
650 			r->dev->bus_id, r->dev->dev_id);  in dma_sb_region_create()
655 	    __LINE__, r->len, r->page_size, r->offset);  in dma_sb_region_create()
657 	BUG_ON(!r->len);  in dma_sb_region_create()
658 	BUG_ON(!r->page_size);  in dma_sb_region_create()
659 	BUG_ON(!r->region_ops);  in dma_sb_region_create()
661 	INIT_LIST_HEAD(&r->chunk_list.head);  in dma_sb_region_create()
662 	spin_lock_init(&r->chunk_list.lock);  in dma_sb_region_create()
664 	result = lv1_allocate_device_dma_region(r->dev->bus_id, r->dev->dev_id,  in dma_sb_region_create()
665 		roundup_pow_of_two(r->len), r->page_size, r->region_type,  in dma_sb_region_create()
667 	r->bus_addr = bus_addr;  in dma_sb_region_create()
672 		r->len = r->bus_addr = 0;  in dma_sb_region_create()
678 static int dma_ioc0_region_create(struct ps3_dma_region *r)  in dma_ioc0_region_create()  argument
683 	INIT_LIST_HEAD(&r->chunk_list.head);  in dma_ioc0_region_create()
684 	spin_lock_init(&r->chunk_list.lock);  in dma_ioc0_region_create()
687 					 r->len,  in dma_ioc0_region_create()
688 					 r->page_size,  in dma_ioc0_region_create()
690 	r->bus_addr = bus_addr;  in dma_ioc0_region_create()
694 		r->len = r->bus_addr = 0;  in dma_ioc0_region_create()
697 	    r->len, r->page_size, r->bus_addr);  in dma_ioc0_region_create()
703  * @r: Pointer to a struct ps3_dma_region.
709 static int dma_sb_region_free(struct ps3_dma_region *r)  in dma_sb_region_free()  argument
715 	BUG_ON(!r);  in dma_sb_region_free()
717 	if (!r->dev->bus_id) {  in dma_sb_region_free()
719 			r->dev->bus_id, r->dev->dev_id);  in dma_sb_region_free()
723 	list_for_each_entry_safe(c, tmp, &r->chunk_list.head, link) {  in dma_sb_region_free()
728 	result = lv1_free_device_dma_region(r->dev->bus_id, r->dev->dev_id,  in dma_sb_region_free()
729 		r->bus_addr);  in dma_sb_region_free()
735 	r->bus_addr = 0;  in dma_sb_region_free()
740 static int dma_ioc0_region_free(struct ps3_dma_region *r)  in dma_ioc0_region_free()  argument
746 	list_for_each_entry_safe(c, n, &r->chunk_list.head, link) {  in dma_ioc0_region_free()
751 	result = lv1_release_io_segment(0, r->bus_addr);  in dma_ioc0_region_free()
757 	r->bus_addr = 0;  in dma_ioc0_region_free()
765  * @r: Pointer to a struct ps3_dma_region.
774 static int dma_sb_map_area(struct ps3_dma_region *r, unsigned long virt_addr,  in dma_sb_map_area()  argument
783 	unsigned long aligned_phys = ALIGN_DOWN(phys_addr, 1 << r->page_size);  in dma_sb_map_area()
785 					      1 << r->page_size);  in dma_sb_map_area()
786 	*bus_addr = dma_sb_lpar_to_bus(r, ps3_mm_phys_to_lpar(phys_addr));  in dma_sb_map_area()
802 	spin_lock_irqsave(&r->chunk_list.lock, flags);  in dma_sb_map_area()
803 	c = dma_find_chunk(r, *bus_addr, len);  in dma_sb_map_area()
809 		spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_sb_map_area()
813 	result = dma_sb_map_pages(r, aligned_phys, aligned_len, &c, iopte_flag);  in dma_sb_map_area()
819 		spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_sb_map_area()
825 	spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_sb_map_area()
829 static int dma_ioc0_map_area(struct ps3_dma_region *r, unsigned long virt_addr,  in dma_ioc0_map_area()  argument
838 	unsigned long aligned_phys = ALIGN_DOWN(phys_addr, 1 << r->page_size);  in dma_ioc0_map_area()
840 					      1 << r->page_size);  in dma_ioc0_map_area()
847 	spin_lock_irqsave(&r->chunk_list.lock, flags);  in dma_ioc0_map_area()
848 	c = dma_find_chunk_lpar(r, ps3_mm_phys_to_lpar(phys_addr), len);  in dma_ioc0_map_area()
855 		spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_ioc0_map_area()
859 	result = dma_ioc0_map_pages(r, aligned_phys, aligned_len, &c,  in dma_ioc0_map_area()
866 		spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_ioc0_map_area()
874 	spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_ioc0_map_area()
880  * @r: Pointer to a struct ps3_dma_region.
887 static int dma_sb_unmap_area(struct ps3_dma_region *r, dma_addr_t bus_addr,  in dma_sb_unmap_area()  argument
893 	spin_lock_irqsave(&r->chunk_list.lock, flags);  in dma_sb_unmap_area()
894 	c = dma_find_chunk(r, bus_addr, len);  in dma_sb_unmap_area()
898 			1 << r->page_size);  in dma_sb_unmap_area()
900 			- aligned_bus, 1 << r->page_size);  in dma_sb_unmap_area()
919 	spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_sb_unmap_area()
923 static int dma_ioc0_unmap_area(struct ps3_dma_region *r,  in dma_ioc0_unmap_area()  argument
930 	spin_lock_irqsave(&r->chunk_list.lock, flags);  in dma_ioc0_unmap_area()
931 	c = dma_find_chunk(r, bus_addr, len);  in dma_ioc0_unmap_area()
935 							1 << r->page_size);  in dma_ioc0_unmap_area()
938 						      1 << r->page_size);  in dma_ioc0_unmap_area()
957 	spin_unlock_irqrestore(&r->chunk_list.lock, flags);  in dma_ioc0_unmap_area()
964  * @r: Pointer to a struct ps3_dma_region.
970 static int dma_sb_region_create_linear(struct ps3_dma_region *r)  in dma_sb_region_create_linear()  argument
976 	if (r->len > 16*1024*1024) {	/* FIXME: need proper fix */  in dma_sb_region_create_linear()
978 		if (r->page_size != PS3_DMA_16M) {  in dma_sb_region_create_linear()
981 			r->page_size = PS3_DMA_16M;  in dma_sb_region_create_linear()
982 			r->len = ALIGN(r->len, 1 << r->page_size);  in dma_sb_region_create_linear()
986 	result = dma_sb_region_create(r);  in dma_sb_region_create_linear()
989 	if (r->offset < map.rm.size) {  in dma_sb_region_create_linear()
991 		virt_addr = map.rm.base + r->offset;  in dma_sb_region_create_linear()
992 		len = map.rm.size - r->offset;  in dma_sb_region_create_linear()
993 		if (len > r->len)  in dma_sb_region_create_linear()
994 			len = r->len;  in dma_sb_region_create_linear()
995 		result = dma_sb_map_area(r, virt_addr, len, &tmp,  in dma_sb_region_create_linear()
1001 	if (r->offset + r->len > map.rm.size) {  in dma_sb_region_create_linear()
1004 		len = r->len;  in dma_sb_region_create_linear()
1005 		if (r->offset >= map.rm.size)  in dma_sb_region_create_linear()
1006 			virt_addr += r->offset - map.rm.size;  in dma_sb_region_create_linear()
1008 			len -= map.rm.size - r->offset;  in dma_sb_region_create_linear()
1009 		result = dma_sb_map_area(r, virt_addr, len, &tmp,  in dma_sb_region_create_linear()
1020  * @r: Pointer to a struct ps3_dma_region.
1025 static int dma_sb_region_free_linear(struct ps3_dma_region *r)  in dma_sb_region_free_linear()  argument
1031 	if (r->offset < map.rm.size) {  in dma_sb_region_free_linear()
1033 		lpar_addr = map.rm.base + r->offset;  in dma_sb_region_free_linear()
1034 		len = map.rm.size - r->offset;  in dma_sb_region_free_linear()
1035 		if (len > r->len)  in dma_sb_region_free_linear()
1036 			len = r->len;  in dma_sb_region_free_linear()
1037 		bus_addr = dma_sb_lpar_to_bus(r, lpar_addr);  in dma_sb_region_free_linear()
1038 		result = dma_sb_unmap_area(r, bus_addr, len);  in dma_sb_region_free_linear()
1042 	if (r->offset + r->len > map.rm.size) {  in dma_sb_region_free_linear()
1045 		len = r->len;  in dma_sb_region_free_linear()
1046 		if (r->offset >= map.rm.size)  in dma_sb_region_free_linear()
1047 			lpar_addr += r->offset - map.rm.size;  in dma_sb_region_free_linear()
1049 			len -= map.rm.size - r->offset;  in dma_sb_region_free_linear()
1050 		bus_addr = dma_sb_lpar_to_bus(r, lpar_addr);  in dma_sb_region_free_linear()
1051 		result = dma_sb_unmap_area(r, bus_addr, len);  in dma_sb_region_free_linear()
1055 	result = dma_sb_region_free(r);  in dma_sb_region_free_linear()
1063  * @r: Pointer to a struct ps3_dma_region.
1073 static int dma_sb_map_area_linear(struct ps3_dma_region *r,  in dma_sb_map_area_linear()  argument
1079 	*bus_addr = dma_sb_lpar_to_bus(r, ps3_mm_phys_to_lpar(phys_addr));  in dma_sb_map_area_linear()
1085  * @r: Pointer to a struct ps3_dma_region.
1092 static int dma_sb_unmap_area_linear(struct ps3_dma_region *r,  in dma_sb_unmap_area_linear()  argument
1120 	struct ps3_dma_region *r, enum ps3_dma_page_size page_size,  in ps3_dma_region_init()  argument
1128 	r->dev = dev;  in ps3_dma_region_init()
1129 	r->page_size = page_size;  in ps3_dma_region_init()
1130 	r->region_type = region_type;  in ps3_dma_region_init()
1131 	r->offset = lpar_addr;  in ps3_dma_region_init()
1132 	if (r->offset >= map.rm.size)  in ps3_dma_region_init()
1133 		r->offset -= map.r1.offset;  in ps3_dma_region_init()
1134 	r->len = len ? len : ALIGN(map.total, 1 << r->page_size);  in ps3_dma_region_init()
1136 	dev->core.dma_mask = &r->dma_mask;  in ps3_dma_region_init()
1148 		r->region_ops =  (USE_DYNAMIC_DMA)  in ps3_dma_region_init()
1153 		r->region_ops = &ps3_dma_ioc0_region_ops;  in ps3_dma_region_init()
1163 int ps3_dma_region_create(struct ps3_dma_region *r)  in ps3_dma_region_create()  argument
1165 	BUG_ON(!r);  in ps3_dma_region_create()
1166 	BUG_ON(!r->region_ops);  in ps3_dma_region_create()
1167 	BUG_ON(!r->region_ops->create);  in ps3_dma_region_create()
1168 	return r->region_ops->create(r);  in ps3_dma_region_create()
1172 int ps3_dma_region_free(struct ps3_dma_region *r)  in ps3_dma_region_free()  argument
1174 	BUG_ON(!r);  in ps3_dma_region_free()
1175 	BUG_ON(!r->region_ops);  in ps3_dma_region_free()
1176 	BUG_ON(!r->region_ops->free);  in ps3_dma_region_free()
1177 	return r->region_ops->free(r);  in ps3_dma_region_free()
1181 int ps3_dma_map(struct ps3_dma_region *r, unsigned long virt_addr,  in ps3_dma_map()  argument
1185 	return r->region_ops->map(r, virt_addr, len, bus_addr, iopte_flag);  in ps3_dma_map()
1188 int ps3_dma_unmap(struct ps3_dma_region *r, dma_addr_t bus_addr,  in ps3_dma_unmap()  argument
1191 	return r->region_ops->unmap(r, bus_addr, len);  in ps3_dma_unmap()