1 // SPDX-License-Identifier: GPL-2.0
17 	1, 555, 1033, MT_GRANULE_SIZE - 1, MT_GRANULE_SIZE,
18 	/* page size - 1*/ 0, /* page_size */ 0, /* page size + 1 */ 0
28 static int check_buffer_by_byte(int mem_type, int mode)  in check_buffer_by_byte()  argument
34 	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);  in check_buffer_by_byte()
41 		mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[i]);  in check_buffer_by_byte()
63 static int check_buffer_underflow_by_byte(int mem_type, int mode,  in check_buffer_underflow_by_byte()  argument
71 	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);  in check_buffer_underflow_by_byte()
80 		mte_initialize_current_context(mode, (uintptr_t)ptr, -underflow_range);  in check_buffer_underflow_by_byte()
83 		for (j = sizes[i] - 1; (j >= -underflow_range) &&  in check_buffer_underflow_by_byte()
84 				       (!cur_mte_cxt.fault_valid); j--) {  in check_buffer_underflow_by_byte()
102 		switch (mode) {  in check_buffer_underflow_by_byte()
104 			if (cur_mte_cxt.fault_valid == true || last_index != -underflow_range) {  in check_buffer_underflow_by_byte()
109 			und_ptr = (char *) MT_CLEAR_TAG((size_t) ptr - underflow_range);  in check_buffer_underflow_by_byte()
137 			if (!cur_mte_cxt.fault_valid || (last_index != (-1))) {  in check_buffer_underflow_by_byte()
143 			if (und_ptr[-1] == '1')  in check_buffer_underflow_by_byte()
158 static int check_buffer_overflow_by_byte(int mem_type, int mode,  in check_buffer_overflow_by_byte()  argument
167 	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);  in check_buffer_overflow_by_byte()
178 		mte_initialize_current_context(mode, (uintptr_t)ptr, sizes[i] + overflow_range);  in check_buffer_overflow_by_byte()
200 		overflow_size = overflow_range - (tagged_size - sizes[i]);  in check_buffer_overflow_by_byte()
202 		switch (mode) {  in check_buffer_overflow_by_byte()
205 			    (last_index != (sizes[i] + overflow_range - 1))) {  in check_buffer_overflow_by_byte()
261 static int check_buffer_by_block_iterate(int mem_type, int mode, size_t size)  in check_buffer_by_block_iterate()  argument
309 		mte_initialize_current_context(mode, (uintptr_t)dst, size);  in check_buffer_by_block_iterate()
336 static int check_buffer_by_block(int mem_type, int mode)  in check_buffer_by_block()  argument
340 	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);  in check_buffer_by_block()
344 		result = check_buffer_by_block_iterate(mem_type, mode, sizes[i]);  in check_buffer_by_block()
365 static int check_memory_initial_tags(int mem_type, int mode, int mapping)  in check_memory_initial_tags()  argument
371 	mte_switch_mode(mode, MTE_ALLOW_NON_ZERO_TAG);  in check_memory_initial_tags()
385 		if (fd == -1)  in check_memory_initial_tags()
409 	sizes[item - 3] = page_size - 1;  in main()
410 	sizes[item - 2] = page_size;  in main()
411 	sizes[item - 1] = page_size + 1;  in main()
425 	"Check buffer correctness by byte with sync err mode and mmap memory\n");  in main()
427 	"Check buffer correctness by byte with async err mode and mmap memory\n");  in main()
429 	"Check buffer correctness by byte with sync err mode and mmap/mprotect memory\n");  in main()
431 	"Check buffer correctness by byte with async err mode and mmap/mprotect memory\n");  in main()
435 	"Check buffer write underflow by byte with sync mode and mmap memory\n");  in main()
437 	"Check buffer write underflow by byte with async mode and mmap memory\n");  in main()
443 	"Check buffer write underflow by byte with sync mode and mmap memory\n");  in main()
445 	"Check buffer write underflow by byte with async mode and mmap memory\n");  in main()
451 	"Check buffer write overflow by byte with sync mode and mmap memory\n");  in main()
453 	"Check buffer write overflow by byte with async mode and mmap memory\n");  in main()
455 	"Check buffer write overflow by byte with tag fault ignore mode and mmap memory\n");  in main()
459 	"Check buffer write correctness by block with sync mode and mmap memory\n");  in main()
461 	"Check buffer write correctness by block with async mode and mmap memory\n");  in main()
467 	"Check initial tags with private mapping, sync error mode and mmap memory\n");  in main()
469 	"Check initial tags with private mapping, sync error mode and mmap/mprotect memory\n");  in main()
471 	"Check initial tags with shared mapping, sync error mode and mmap memory\n");  in main()
473 	"Check initial tags with shared mapping, sync error mode and mmap/mprotect memory\n");  in main()