2  * Copyright (c) 2017-2019, Intel Corporation
33 #include "intel-pt.h"
36 int pt_section_get(struct pt_section *section)  in pt_section_get()  argument
40 	if (!section)  in pt_section_get()
41 		return -pte_internal;  in pt_section_get()
43 	ucount = section->ucount + 1;  in pt_section_get()
45 		return -pte_overflow;  in pt_section_get()
47 	section->ucount = ucount;  in pt_section_get()
51 int pt_section_put(struct pt_section *section)  in pt_section_put()  argument
55 	if (!section)  in pt_section_put()
56 		return -pte_internal;  in pt_section_put()
58 	ucount = section->ucount;  in pt_section_put()
60 		return -pte_overflow;  in pt_section_put()
62 	section->ucount = ucount - 1;  in pt_section_put()
66 int pt_section_map(struct pt_section *section)  in pt_section_map()  argument
70 	if (!section)  in pt_section_map()
71 		return -pte_internal;  in pt_section_map()
73 	ucount = section->ucount;  in pt_section_map()
75 		return -pte_internal;  in pt_section_map()
77 	mcount = section->mcount + 1;  in pt_section_map()
79 		return -pte_overflow;  in pt_section_map()
81 	section->mcount = mcount;  in pt_section_map()
85 int pt_section_unmap(struct pt_section *section)  in pt_section_unmap()  argument
89 	if (!section)  in pt_section_unmap()
90 		return -pte_internal;  in pt_section_unmap()
92 	ucount = section->ucount;  in pt_section_unmap()
94 		return -pte_internal;  in pt_section_unmap()
96 	mcount = section->mcount;  in pt_section_unmap()
98 		return -pte_overflow;  in pt_section_unmap()
100 	section->mcount = mcount - 1;  in pt_section_unmap()
106 	/* The section stored in the image.
108 	 * This is either the fixture's section or NULL.
110 	struct pt_section *section;  member
121 	struct pt_section *section;  in pt_image_validate()  local
127 		return -pte_internal;  in pt_image_validate()
129 	section = image->section;  in pt_image_validate()
130 	if (!section)  in pt_image_validate()
131 		return -pte_nomap;  in pt_image_validate()
133 	if (section != msec->section)  in pt_image_validate()
134 		return -pte_nomap;  in pt_image_validate()
142 	struct pt_section *section;  in pt_image_find()  local
147 		return -pte_internal;  in pt_image_find()
149 	section = image->section;  in pt_image_find()
150 	if (!section)  in pt_image_find()
151 		return -pte_nomap;  in pt_image_find()
153 	if (msec->section)  in pt_image_find()
154 		return -pte_internal;  in pt_image_find()
156 	msec->section = section;  in pt_image_find()
158 	return pt_section_get(section);  in pt_image_find()
161 /* A test fixture providing a section and checking the use and map count. */
163 	/* A test section. */
164 	struct pt_section section;  member
182 	ptu_int_eq(status, -pte_internal);  in init_null()
199 	ptu_int_eq(status, -pte_internal);  in invalidate_null()
212 	ptu_int_eq(status, -pte_internal);  in read_null()
215 	ptu_int_eq(status, -pte_internal);  in read_null()
218 	ptu_int_eq(status, -pte_internal);  in read_null()
234 	ptu_int_eq(status, -pte_internal);  in fill_null()
237 	ptu_int_eq(status, -pte_internal);  in fill_null()
240 	ptu_int_eq(status, -pte_internal);  in fill_null()
243 	ptu_int_eq(status, -pte_internal);  in fill_null()
250 	struct pt_section *section;  in invalidate()  local
253 	status = pt_msec_cache_invalidate(&tfix->mcache);  in invalidate()
256 	section = pt_msec_section(&tfix->mcache.msec);  in invalidate()
257 	ptu_null(section);  in invalidate()
259 	ptu_uint_eq(tfix->section.mcount, 0);  in invalidate()
260 	ptu_uint_eq(tfix->section.ucount, 0);  in invalidate()
272 	status = pt_msec_cache_read(&tfix->mcache, &msec, &tfix->image, 0ull);  in read_nomap()
273 	ptu_int_eq(status, -pte_nomap);  in read_nomap()
282 	struct pt_section *section;  in read()  local
285 	status = pt_msec_cache_read(&tfix->mcache, &msec, &tfix->image, 0ull);  in read()
288 	ptu_ptr_eq(msec, &tfix->mcache.msec);  in read()
290 	section = pt_msec_section(msec);  in read()
291 	ptu_ptr_eq(section, &tfix->section);  in read()
300 	struct pt_section *section;  in fill_nomap()  local
305 	status = pt_msec_cache_fill(&tfix->mcache, &msec, &tfix->image, &asid,  in fill_nomap()
307 	ptu_int_eq(status, -pte_nomap);  in fill_nomap()
309 	section = pt_msec_section(&tfix->mcache.msec);  in fill_nomap()
310 	ptu_null(section);  in fill_nomap()
313 	ptu_uint_eq(tfix->section.mcount, 0);  in fill_nomap()
314 	ptu_uint_eq(tfix->section.ucount, 0);  in fill_nomap()
322 	struct pt_section *section;  in fill()  local
326 	status = pt_msec_cache_fill(&tfix->mcache, &msec, &tfix->image, &asid,  in fill()
330 	ptu_ptr_eq(msec, &tfix->mcache.msec);  in fill()
332 	section = pt_msec_section(msec);  in fill()
333 	ptu_ptr_eq(section, &tfix->section);  in fill()
335 	ptu_uint_eq(section->mcount, 1);  in fill()
336 	ptu_uint_eq(section->ucount, 1);  in fill()
343 	memset(&tfix->section, 0, sizeof(tfix->section));  in sfix_init()
344 	memset(&tfix->mcache, 0, sizeof(tfix->mcache));  in sfix_init()
345 	memset(&tfix->image, 0, sizeof(tfix->image));  in sfix_init()
354 	tfix->image.section = &tfix->section;  in ifix_init()
363 	tfix->mcache.msec.section = &tfix->section;  in cfix_init()
365 	tfix->section.ucount = 1;  in cfix_init()
366 	tfix->section.mcount = 1;  in cfix_init()
375 	tfix->image.section = &tfix->section;  in cifix_init()