46 static struct fw_dump fw_dump;  variable
76 	fw_dump.fadump_supported = 1;  in early_init_dt_scan_fw_dump()
77 	fw_dump.ibm_configure_kernel_dump = be32_to_cpu(*token);  in early_init_dt_scan_fw_dump()
85 		fw_dump.dump_active = 1;  in early_init_dt_scan_fw_dump()
106 			fw_dump.cpu_state_data_size =  in early_init_dt_scan_fw_dump()
110 			fw_dump.hpte_region_size =  in early_init_dt_scan_fw_dump()
125 	if (!fw_dump.dump_registered)  in is_fadump_boot_memory_area()
128 	return (addr + size) > RMA_START && addr <= fw_dump.boot_memory_size;  in is_fadump_boot_memory_area()
133 	if (!fw_dump.dump_registered || !fw_dump.fadumphdr_addr)  in should_fadump_crash()
140 	return fw_dump.dump_active;  in is_fadump_active()
152 	unsigned long end_pfn = PHYS_PFN(RMA_START + fw_dump.boot_memory_size);  in is_boot_memory_area_contiguous()
179 			(fw_dump.fadump_supported ? "present" : "no support"));  in fadump_show_config()
181 	if (!fw_dump.fadump_supported)  in fadump_show_config()
185 				(fw_dump.fadump_enabled ? "yes" : "no"));  in fadump_show_config()
187 				(fw_dump.dump_active ? "yes" : "no"));  in fadump_show_config()
189 	pr_debug("    CPU state data size: %lx\n", fw_dump.cpu_state_data_size);  in fadump_show_config()
190 	pr_debug("    HPTE region size   : %lx\n", fw_dump.hpte_region_size);  in fadump_show_config()
191 	pr_debug("Boot memory size  : %lx\n", fw_dump.boot_memory_size);  in fadump_show_config()
226 	fdm->cpu_state_data.source_len = cpu_to_be64(fw_dump.cpu_state_data_size);  in init_fadump_mem_struct()
228 	addr += fw_dump.cpu_state_data_size;  in init_fadump_mem_struct()
234 	fdm->hpte_region.source_len = cpu_to_be64(fw_dump.hpte_region_size);  in init_fadump_mem_struct()
236 	addr += fw_dump.hpte_region_size;  in init_fadump_mem_struct()
242 	fdm->rmr_region.source_len = cpu_to_be64(fw_dump.boot_memory_size);  in init_fadump_mem_struct()
244 	addr += fw_dump.boot_memory_size;  in init_fadump_mem_struct()
269 	if (fw_dump.reserve_bootvar)  in fadump_calculate_reserve_size()
282 		if (fw_dump.reserve_bootvar)  in fadump_calculate_reserve_size()
285 		fw_dump.reserve_bootvar = (unsigned long)size;  in fadump_calculate_reserve_size()
292 		if (fw_dump.reserve_bootvar > max_size) {  in fadump_calculate_reserve_size()
293 			fw_dump.reserve_bootvar = max_size;  in fadump_calculate_reserve_size()
295 				(fw_dump.reserve_bootvar >> 20));  in fadump_calculate_reserve_size()
298 		return fw_dump.reserve_bootvar;  in fadump_calculate_reserve_size()
299 	} else if (fw_dump.reserve_bootvar) {  in fadump_calculate_reserve_size()
304 		return fw_dump.reserve_bootvar;  in fadump_calculate_reserve_size()
328 	size += fw_dump.cpu_state_data_size;  in get_fadump_area_size()
329 	size += fw_dump.hpte_region_size;  in get_fadump_area_size()
330 	size += fw_dump.boot_memory_size;  in get_fadump_area_size()
365 	if (!fw_dump.fadump_enabled)  in fadump_reserve_mem()
368 	if (!fw_dump.fadump_supported) {  in fadump_reserve_mem()
371 		fw_dump.fadump_enabled = 0;  in fadump_reserve_mem()
380 		fw_dump.boot_memory_size = be64_to_cpu(fdm_active->rmr_region.source_len);  in fadump_reserve_mem()
382 		fw_dump.boot_memory_size = fadump_calculate_reserve_size();  in fadump_reserve_mem()
405 	if (fw_dump.dump_active) {  in fadump_reserve_mem()
422 		base = fw_dump.boot_memory_size;  in fadump_reserve_mem()
426 		fw_dump.fadumphdr_addr =  in fadump_reserve_mem()
430 				(void *) fw_dump.fadumphdr_addr);  in fadump_reserve_mem()
440 		for (base = fw_dump.boot_memory_size;  in fadump_reserve_mem()
460 	fw_dump.reserve_dump_area_start = base;  in fadump_reserve_mem()
461 	fw_dump.reserve_dump_area_size = size;  in fadump_reserve_mem()
477 		fw_dump.fadump_enabled = 1;  in early_fadump_param()
479 		fw_dump.fadump_enabled = 0;  in early_fadump_param()
493 		fw_dump.reserve_bootvar = memparse(p, &p);  in early_fadump_reserve_mem()
507 		rc = rtas_call(fw_dump.ibm_configure_kernel_dump, 3, 1, NULL,  in register_fw_dump()
538 		fw_dump.dump_registered = 1;  in register_fw_dump()
544 		fw_dump.dump_registered = 1;  in register_fw_dump()
577 		while (fw_dump.dump_registered)  in crash_fadump()
582 	fdh = __va(fw_dump.fadumphdr_addr);  in crash_fadump()
684 		phdr->p_paddr = fw_dump.cpu_notes_buf;  in fadump_update_elfcore_header()
686 		phdr->p_filesz	= fw_dump.cpu_notes_buf_size;  in fadump_update_elfcore_header()
687 		phdr->p_memsz = fw_dump.cpu_notes_buf_size;  in fadump_update_elfcore_header()
770 	fw_dump.cpu_notes_buf_size = num_cpus * sizeof(note_buf_t);  in fadump_build_cpu_notes()
771 	fw_dump.cpu_notes_buf_size = PAGE_ALIGN(fw_dump.cpu_notes_buf_size);  in fadump_build_cpu_notes()
772 	note_buf = fadump_cpu_notes_buf_alloc(fw_dump.cpu_notes_buf_size);  in fadump_build_cpu_notes()
775 			"cpu notes buffer\n", fw_dump.cpu_notes_buf_size);  in fadump_build_cpu_notes()
778 	fw_dump.cpu_notes_buf = __pa(note_buf);  in fadump_build_cpu_notes()
783 	if (fw_dump.fadumphdr_addr)  in fadump_build_cpu_notes()
784 		fdh = __va(fw_dump.fadumphdr_addr);  in fadump_build_cpu_notes()
819 	fadump_cpu_notes_buf_free((unsigned long)__va(fw_dump.cpu_notes_buf),  in fadump_build_cpu_notes()
820 					fw_dump.cpu_notes_buf_size);  in fadump_build_cpu_notes()
821 	fw_dump.cpu_notes_buf = 0;  in fadump_build_cpu_notes()
822 	fw_dump.cpu_notes_buf_size = 0;  in fadump_build_cpu_notes()
836 	if (!fdm_active || !fw_dump.fadumphdr_addr)  in process_fadump()
854 	fdh = __va(fw_dump.fadumphdr_addr);  in process_fadump()
956 	ra_start = fw_dump.reserve_dump_area_start;  in fadump_exclude_reserved_area()
957 	ra_end = ra_start + fw_dump.reserve_dump_area_size;  in fadump_exclude_reserved_area()
1030 	ret = fadump_add_crash_memory(RMA_START, fw_dump.boot_memory_size);  in fadump_setup_crash_memory_ranges()
1044 		if (start < fw_dump.boot_memory_size) {  in fadump_setup_crash_memory_ranges()
1045 			if (end > fw_dump.boot_memory_size)  in fadump_setup_crash_memory_ranges()
1046 				start = fw_dump.boot_memory_size;  in fadump_setup_crash_memory_ranges()
1067 	if (paddr > RMA_START && paddr < fw_dump.boot_memory_size)  in fadump_relocate()
1163 	fw_dump.fadumphdr_addr = addr;  in init_fadump_header()
1186 	if (!fw_dump.reserve_dump_area_size)  in register_fadump()
1214 		rc = rtas_call(fw_dump.ibm_configure_kernel_dump, 3, 1, NULL,  in fadump_unregister_dump()
1228 	fw_dump.dump_registered = 0;  in fadump_unregister_dump()
1241 		rc = rtas_call(fw_dump.ibm_configure_kernel_dump, 3, 1, NULL,  in fadump_invalidate_dump()
1254 	fw_dump.dump_active = 0;  in fadump_invalidate_dump()
1262 	if (fw_dump.dump_active) {  in fadump_cleanup()
1266 	} else if (fw_dump.dump_registered) {  in fadump_cleanup()
1324 	ra_start = fw_dump.reserve_dump_area_start;  in fadump_release_memory()
1325 	ra_end = ra_start + fw_dump.reserve_dump_area_size;  in fadump_release_memory()
1346 	if (!fw_dump.dump_active) {  in fadump_invalidate_release_mem()
1359 	reserved_area_start = fw_dump.reserve_dump_area_start;  in fadump_invalidate_release_mem()
1361 			fw_dump.reserve_dump_area_size;  in fadump_invalidate_release_mem()
1366 	fw_dump.reserve_dump_area_start = destination_address;  in fadump_invalidate_release_mem()
1367 	fw_dump.reserve_dump_area_size = get_fadump_area_size();  in fadump_invalidate_release_mem()
1370 	if (fw_dump.cpu_notes_buf) {  in fadump_invalidate_release_mem()
1372 				(unsigned long)__va(fw_dump.cpu_notes_buf),  in fadump_invalidate_release_mem()
1373 				fw_dump.cpu_notes_buf_size);  in fadump_invalidate_release_mem()
1374 		fw_dump.cpu_notes_buf = 0;  in fadump_invalidate_release_mem()
1375 		fw_dump.cpu_notes_buf_size = 0;  in fadump_invalidate_release_mem()
1378 	init_fadump_mem_struct(&fdm, fw_dump.reserve_dump_area_start);  in fadump_invalidate_release_mem()
1387 	if (!fw_dump.dump_active)  in fadump_release_memory_store()
1412 	return sprintf(buf, "%d\n", fw_dump.fadump_enabled);  in fadump_enabled_show()
1419 	return sprintf(buf, "%d\n", fw_dump.dump_registered);  in fadump_register_show()
1429 	if (!fw_dump.fadump_enabled || fdm_active)  in fadump_register_store()
1439 		if (fw_dump.dump_registered == 0) {  in fadump_register_store()
1446 		if (fw_dump.dump_registered == 1) {  in fadump_register_store()
1467 	if (!fw_dump.fadump_enabled)  in fadump_region_show()
1504 		(fw_dump.reserve_dump_area_start ==  in fadump_region_show()
1512 			(unsigned long long)fw_dump.reserve_dump_area_start,  in fadump_region_show()
1515 			fw_dump.reserve_dump_area_start,  in fadump_region_show()
1517 			fw_dump.reserve_dump_area_start);  in fadump_region_show()
1568 	if (fw_dump.dump_active) {  in fadump_init_files()
1582 	if (!fw_dump.fadump_enabled)  in setup_fadump()
1585 	if (!fw_dump.fadump_supported) {  in setup_fadump()
1596 	if (fw_dump.dump_active) {  in setup_fadump()
1605 	else if (fw_dump.reserve_dump_area_size)  in setup_fadump()
1606 		init_fadump_mem_struct(&fdm, fw_dump.reserve_dump_area_start);  in setup_fadump()