114 static void dump_flag_info(struct pg_state *st, const struct flag_info  in dump_flag_info()  argument
131 			pt_dump_seq_printf(st->seq, "  %s:%llx", flag->set, val);  in dump_flag_info()
138 				pt_dump_seq_printf(st->seq, "  %s", s);  in dump_flag_info()
140 		st->current_flags &= ~flag->mask;  in dump_flag_info()
142 	if (st->current_flags != 0)  in dump_flag_info()
143 		pt_dump_seq_printf(st->seq, "  unknown flags:%llx", st->current_flags);  in dump_flag_info()
146 static void dump_addr(struct pg_state *st, unsigned long addr)  in dump_addr()  argument
158 	pt_dump_seq_printf(st->seq, REG "-" REG " ", st->start_address, addr - 1);  in dump_addr()
159 	if (st->start_pa == st->last_pa && st->start_address + st->page_size != addr) {  in dump_addr()
160 		pt_dump_seq_printf(st->seq, "[" REG "]", st->start_pa);  in dump_addr()
161 		delta = st->page_size >> 10;  in dump_addr()
163 		pt_dump_seq_printf(st->seq, " " REG " ", st->start_pa);  in dump_addr()
164 		delta = (addr - st->start_address) >> 10;  in dump_addr()
171 	pt_dump_seq_printf(st->seq, "%9lu%c", delta, *unit);  in dump_addr()
175 static void note_prot_wx(struct pg_state *st, unsigned long addr)  in note_prot_wx()  argument
177 	pte_t pte = __pte(st->current_flags);  in note_prot_wx()
179 	if (!IS_ENABLED(CONFIG_PPC_DEBUG_WX) || !st->check_wx)  in note_prot_wx()
186 		  (void *)st->start_address, (void *)st->start_address);  in note_prot_wx()
188 	st->wx_pages += (addr - st->start_address) / PAGE_SIZE;  in note_prot_wx()
191 static void note_page(struct pg_state *st, unsigned long addr,  in note_page()  argument
198 	if (!st->level) {  in note_page()
199 		st->level = level;  in note_page()
200 		st->current_flags = flag;  in note_page()
201 		st->start_address = addr;  in note_page()
202 		st->start_pa = pa;  in note_page()
203 		st->last_pa = pa;  in note_page()
204 		st->page_size = page_size;  in note_page()
205 		pt_dump_seq_printf(st->seq, "---[ %s ]---\n", st->marker->name);  in note_page()
214 	} else if (flag != st->current_flags || level != st->level ||  in note_page()
215 		   addr >= st->marker[1].start_address ||  in note_page()
216 		   (pa != st->last_pa + st->page_size &&  in note_page()
217 		    (pa != st->start_pa || st->start_pa != st->last_pa))) {  in note_page()
220 		if (st->current_flags) {  in note_page()
221 			note_prot_wx(st, addr);  in note_page()
222 			dump_addr(st, addr);  in note_page()
225 			if (pg_level[st->level].flag)  in note_page()
226 				dump_flag_info(st, pg_level[st->level].flag,  in note_page()
227 					  st->current_flags,  in note_page()
228 					  pg_level[st->level].num);  in note_page()
230 			pt_dump_seq_putc(st->seq, '\n');  in note_page()
237 		while (addr >= st->marker[1].start_address) {  in note_page()
238 			st->marker++;  in note_page()
239 			pt_dump_seq_printf(st->seq, "---[ %s ]---\n", st->marker->name);  in note_page()
241 		st->start_address = addr;  in note_page()
242 		st->start_pa = pa;  in note_page()
243 		st->last_pa = pa;  in note_page()
244 		st->page_size = page_size;  in note_page()
245 		st->current_flags = flag;  in note_page()
246 		st->level = level;  in note_page()
248 		st->last_pa = pa;  in note_page()
252 static void walk_pte(struct pg_state *st, pmd_t *pmd, unsigned long start)  in walk_pte()  argument
260 		note_page(st, addr, 4, pte_val(*pte), PAGE_SIZE);  in walk_pte()
265 static void walk_pmd(struct pg_state *st, pud_t *pud, unsigned long start)  in walk_pmd()  argument
275 			walk_pte(st, pmd, addr);  in walk_pmd()
277 			note_page(st, addr, 3, pmd_val(*pmd), PMD_SIZE);  in walk_pmd()
281 static void walk_pud(struct pg_state *st, pgd_t *pgd, unsigned long start)  in walk_pud()  argument
291 			walk_pmd(st, pud, addr);  in walk_pud()
293 			note_page(st, addr, 2, pud_val(*pud), PUD_SIZE);  in walk_pud()
297 static void walk_pagetables(struct pg_state *st)  in walk_pagetables()  argument
300 	unsigned long addr = st->start_address & PGDIR_MASK;  in walk_pagetables()
310 			walk_pud(st, pgd, addr);  in walk_pagetables()
312 			note_page(st, addr, 1, pgd_val(*pgd), PGDIR_SIZE);  in walk_pagetables()
354 	struct pg_state st = {  in ptdump_show()  local
362 		st.start_address = KERN_VIRT_START;  in ptdump_show()
366 	walk_pagetables(&st);  in ptdump_show()
367 	note_page(&st, 0, 0, 0, 0);  in ptdump_show()
397 	struct pg_state st = {  in ptdump_check_wx()  local
406 		st.start_address = KERN_VIRT_START;  in ptdump_check_wx()
409 	walk_pagetables(&st);  in ptdump_check_wx()
411 	if (st.wx_pages)  in ptdump_check_wx()
413 			st.wx_pages);  in ptdump_check_wx()