59 static int init_window_mem(struct mbox_context *context)  in init_window_mem()  argument
61 	void *mem_location = context->mem;  in init_window_mem()
71 	for (i = 0; i < context->windows.num; i++) {  in init_window_mem()
72 		uint32_t size = context->windows.window[i].size;  in init_window_mem()
75 		context->windows.window[i].mem = mem_location;  in init_window_mem()
77 		if (mem_location > (context->mem + context->mem_size)) {  in init_window_mem()
81 			MSG_ERR("Mem size: 0x%.8x\n", context->mem_size);  in init_window_mem()
94 int windows_init(struct mbox_context *context)  in windows_init()  argument
99 	if (!context->windows.default_size) {  in windows_init()
101 		context->windows.default_size = 1 << 20;  in windows_init()
103 	MSG_INFO("Window size: 0x%.8x\n", context->windows.default_size);  in windows_init()
104 	if (!context->windows.num) {  in windows_init()
106 		context->windows.num = context->mem_size /  in windows_init()
107 				       context->windows.default_size;  in windows_init()
109 	MSG_INFO("Number of windows: %d\n", context->windows.num);  in windows_init()
111 	context->windows.window = calloc(context->windows.num,  in windows_init()
112 					 sizeof(*context->windows.window));  in windows_init()
113 	if (!context->windows.window) {  in windows_init()
118 	for (i = 0; i < context->windows.num; i++) {  in windows_init()
119 		init_window_state(&context->windows.window[i],  in windows_init()
120 				  context->windows.default_size);  in windows_init()
123 	return init_window_mem(context);  in windows_init()
130 void windows_free(struct mbox_context *context)  in windows_free()  argument
135 	if (context->windows.window) {  in windows_free()
136 		for (i = 0; i < context->windows.num; i++) {  in windows_free()
137 			free(context->windows.window[i].dirty_bmap);  in windows_free()
139 		free(context->windows.window);  in windows_free()
160 int window_flush_v1(struct mbox_context *context,  in window_flush_v1()  argument
168 	flash_offset = context->current->flash_offset + offset_bytes;  in window_flush_v1()
179 					  1 << context->backend.erase_size_shift);  in window_flush_v1()
183 				 1 << context->backend.erase_size_shift) -  in window_flush_v1()
190 	if (low_mem.flash_offset < context->current->flash_offset) {  in window_flush_v1()
197 		rc = backend_copy(&context->backend, low_mem.flash_offset,  in window_flush_v1()
204 	    (context->current->flash_offset + context->current->size)) {  in window_flush_v1()
212 		rc = backend_copy(&context->backend, high_mem.flash_offset,  in window_flush_v1()
223 	rc = backend_erase(&context->backend, low_mem.flash_offset,  in window_flush_v1()
234 		rc = backend_write(&context->backend, low_mem.flash_offset,  in window_flush_v1()
240 	rc = backend_write(&context->backend, flash_offset,  in window_flush_v1()
241 			 context->current->mem + offset_bytes, count_bytes);  in window_flush_v1()
251 		rc = backend_write(&context->backend, high_mem.flash_offset,  in window_flush_v1()
258 		rc = backend_write(&context->backend, high_mem.flash_offset,  in window_flush_v1()
259 				   context->current->mem + offset_bytes +  in window_flush_v1()
281 int window_flush(struct mbox_context *context, uint32_t offset,  in window_flush()  argument
285 	uint32_t flash_offset, count_bytes = count << context->backend.block_size_shift;  in window_flush()
286 	uint32_t offset_bytes = offset << context->backend.block_size_shift;  in window_flush()
290 		flash_offset = context->current->flash_offset + offset_bytes;  in window_flush()
291 		rc = backend_erase(&context->backend, flash_offset,  in window_flush()
304 		if (context->backend.erase_size_shift !=  in window_flush()
305 				context->backend.block_size_shift) {  in window_flush()
306 			return window_flush_v1(context, offset_bytes,  in window_flush()
309 		flash_offset = context->current->flash_offset + offset_bytes;  in window_flush()
312 		rc = backend_erase(&context->backend, flash_offset,  in window_flush()
319 		rc = backend_write(&context->backend, flash_offset,  in window_flush()
320 				   context->current->mem + offset_bytes,  in window_flush()
342 void windows_alloc_dirty_bytemap(struct mbox_context *context)  in windows_alloc_dirty_bytemap()  argument
347 	for (i = 0; i < context->windows.num; i++) {  in windows_alloc_dirty_bytemap()
348 		cur = &context->windows.window[i];  in windows_alloc_dirty_bytemap()
352 		cur->dirty_bmap = calloc((context->windows.default_size >>  in windows_alloc_dirty_bytemap()
353 					  context->backend.block_size_shift),  in windows_alloc_dirty_bytemap()
368 int window_set_bytemap(struct mbox_context *context, struct window_context *cur,  in window_set_bytemap()  argument
371 	if (offset + size > (cur->size >> context->backend.block_size_shift)) {  in window_set_bytemap()
374 			offset << context->backend.block_size_shift,  in window_set_bytemap()
375 			size << context->backend.block_size_shift,  in window_set_bytemap()
376 			cur->size << context->backend.block_size_shift);  in window_set_bytemap()
395 void windows_close_current(struct mbox_context *context, uint8_t flags)  in windows_close_current()  argument
400 		context->current->age = 0;  in windows_close_current()
403 	context->current = NULL;  in windows_close_current()
404 	context->current_is_write = false;  in windows_close_current()
412 void window_reset(struct mbox_context *context, struct window_context *window)  in window_reset()  argument
415 	window->size = context->windows.default_size;  in window_reset()
417 		window_set_bytemap(context, window, 0,  in window_reset()
418 				   window->size >> context->backend.block_size_shift,  in window_reset()
430 bool windows_reset_all(struct mbox_context *context)  in windows_reset_all()  argument
432 	bool closed = context->current;  in windows_reset_all()
437 	context->windows.max_age = 0;  in windows_reset_all()
441 	if (context->current) {  in windows_reset_all()
442 		windows_close_current(context, FLAGS_NONE);  in windows_reset_all()
445 	for (i = 0; i < context->windows.num; i++) {  in windows_reset_all()
446 		window_reset(context, &context->windows.window[i]);  in windows_reset_all()
458 struct window_context *windows_find_oldest(struct mbox_context *context)  in windows_find_oldest()  argument
461 	uint32_t min_age = context->windows.max_age + 1;  in windows_find_oldest()
464 	for (i = 0; i < context->windows.num; i++) {  in windows_find_oldest()
465 		cur = &context->windows.window[i];  in windows_find_oldest()
482 struct window_context *windows_find_largest(struct mbox_context *context)  in windows_find_largest()  argument
488 	for (i = 0; i < context->windows.num; i++) {  in windows_find_largest()
489 		cur = &context->windows.window[i];  in windows_find_largest()
514 struct window_context *windows_search(struct mbox_context *context,  in windows_search()  argument
522 	for (i = 0; i < context->windows.num; i++) {  in windows_search()
523 		cur = &context->windows.window[i];  in windows_search()
537 			cur->age = ++(context->windows.max_age);  in windows_search()
560 int windows_create_map(struct mbox_context *context,  in windows_create_map()  argument
571 	cur = windows_search(context, FLASH_OFFSET_UNINIT, true);  in windows_create_map()
576 		cur = windows_find_oldest(context);  in windows_create_map()
577 		window_reset(context, cur);  in windows_create_map()
584 		if (backend_align_offset(&(context->backend), &offset, cur->size)) {  in windows_create_map()
589 	if (offset > context->backend.flash_size) {  in windows_create_map()
592 	} else if ((offset + cur->size) > context->backend.flash_size) {  in windows_create_map()
603 		if (context->version == API_VERSION_1) {  in windows_create_map()
604 			cur->size = align_down(context->backend.flash_size - offset,  in windows_create_map()
605 					       1 << context->backend.block_size_shift);  in windows_create_map()
611 			cur->size = context->backend.flash_size - offset;  in windows_create_map()
616 	rc = backend_copy(&context->backend, offset, cur->mem, cur->size);  in windows_create_map()
619 		window_reset(context, cur);  in windows_create_map()
628 	cur->size = align_up(rc, (1ULL << context->backend.block_size_shift));  in windows_create_map()
640 	if (context->version == API_VERSION_1) {  in windows_create_map()
648 				tmp = windows_search(context, i, false);  in windows_create_map()
650 					window_reset(context, tmp);  in windows_create_map()
657 	window_set_bytemap(context, cur, 0,  in windows_create_map()
658 			   cur->size >> context->backend.block_size_shift,  in windows_create_map()
663 	cur->age = ++(context->windows.max_age);  in windows_create_map()