diff options
Diffstat (limited to 'tools')
| -rw-r--r-- | tools/testing/scatterlist/main.c | 64 |
1 files changed, 41 insertions, 23 deletions
diff --git a/tools/testing/scatterlist/main.c b/tools/testing/scatterlist/main.c index 8a577c95496e..71c960dcd8a4 100644 --- a/tools/testing/scatterlist/main.c +++ b/tools/testing/scatterlist/main.c @@ -9,6 +9,7 @@ struct test { int alloc_ret; unsigned num_pages; unsigned *pfn; + unsigned *pfn_app; unsigned size; unsigned int max_seg; unsigned int expected_segments; @@ -52,31 +53,39 @@ int main(void) { const unsigned int sgmax = UINT_MAX; struct test *test, tests[] = { - { -EINVAL, 1, pfn(0), PAGE_SIZE, 0, 1 }, - { 0, 1, pfn(0), PAGE_SIZE, PAGE_SIZE + 1, 1 }, - { 0, 1, pfn(0), PAGE_SIZE, sgmax + 1, 1 }, - { 0, 1, pfn(0), PAGE_SIZE, sgmax, 1 }, - { 0, 1, pfn(0), 1, sgmax, 1 }, - { 0, 2, pfn(0, 1), 2 * PAGE_SIZE, sgmax, 1 }, - { 0, 2, pfn(1, 0), 2 * PAGE_SIZE, sgmax, 2 }, - { 0, 3, pfn(0, 1, 2), 3 * PAGE_SIZE, sgmax, 1 }, - { 0, 3, pfn(0, 2, 1), 3 * PAGE_SIZE, sgmax, 3 }, - { 0, 3, pfn(0, 1, 3), 3 * PAGE_SIZE, sgmax, 2 }, - { 0, 3, pfn(1, 2, 4), 3 * PAGE_SIZE, sgmax, 2 }, - { 0, 3, pfn(1, 3, 4), 3 * PAGE_SIZE, sgmax, 2 }, - { 0, 4, pfn(0, 1, 3, 4), 4 * PAGE_SIZE, sgmax, 2 }, - { 0, 5, pfn(0, 1, 3, 4, 5), 5 * PAGE_SIZE, sgmax, 2 }, - { 0, 5, pfn(0, 1, 3, 4, 6), 5 * PAGE_SIZE, sgmax, 3 }, - { 0, 5, pfn(0, 1, 2, 3, 4), 5 * PAGE_SIZE, sgmax, 1 }, - { 0, 5, pfn(0, 1, 2, 3, 4), 5 * PAGE_SIZE, 2 * PAGE_SIZE, 3 }, - { 0, 6, pfn(0, 1, 2, 3, 4, 5), 6 * PAGE_SIZE, 2 * PAGE_SIZE, 3 }, - { 0, 6, pfn(0, 2, 3, 4, 5, 6), 6 * PAGE_SIZE, 2 * PAGE_SIZE, 4 }, - { 0, 6, pfn(0, 1, 3, 4, 5, 6), 6 * PAGE_SIZE, 2 * PAGE_SIZE, 3 }, - { 0, 0, NULL, 0, 0, 0 }, + { -EINVAL, 1, pfn(0), NULL, PAGE_SIZE, 0, 1 }, + { 0, 1, pfn(0), NULL, PAGE_SIZE, PAGE_SIZE + 1, 1 }, + { 0, 1, pfn(0), NULL, PAGE_SIZE, sgmax + 1, 1 }, + { 0, 1, pfn(0), NULL, PAGE_SIZE, sgmax, 1 }, + { 0, 1, pfn(0), NULL, 1, sgmax, 1 }, + { 0, 2, pfn(0, 1), NULL, 2 * PAGE_SIZE, sgmax, 1 }, + { 0, 2, pfn(1, 0), NULL, 2 * PAGE_SIZE, sgmax, 2 }, + { 0, 3, pfn(0, 1, 2), NULL, 3 * PAGE_SIZE, sgmax, 1 }, + { 0, 3, pfn(0, 1, 2), NULL, 3 * PAGE_SIZE, sgmax, 1 }, + { 0, 3, pfn(0, 1, 2), pfn(3, 4, 5), 3 * PAGE_SIZE, sgmax, 1 }, + { 0, 3, pfn(0, 1, 2), pfn(4, 5, 6), 3 * PAGE_SIZE, sgmax, 2 }, + { 0, 3, pfn(0, 2, 1), NULL, 3 * PAGE_SIZE, sgmax, 3 }, + { 0, 3, pfn(0, 1, 3), NULL, 3 * PAGE_SIZE, sgmax, 2 }, + { 0, 3, pfn(1, 2, 4), NULL, 3 * PAGE_SIZE, sgmax, 2 }, + { 0, 3, pfn(1, 3, 4), NULL, 3 * PAGE_SIZE, sgmax, 2 }, + { 0, 4, pfn(0, 1, 3, 4), NULL, 4 * PAGE_SIZE, sgmax, 2 }, + { 0, 5, pfn(0, 1, 3, 4, 5), NULL, 5 * PAGE_SIZE, sgmax, 2 }, + { 0, 5, pfn(0, 1, 3, 4, 6), NULL, 5 * PAGE_SIZE, sgmax, 3 }, + { 0, 5, pfn(0, 1, 2, 3, 4), NULL, 5 * PAGE_SIZE, sgmax, 1 }, + { 0, 5, pfn(0, 1, 2, 3, 4), NULL, 5 * PAGE_SIZE, 2 * PAGE_SIZE, + 3 }, + { 0, 6, pfn(0, 1, 2, 3, 4, 5), NULL, 6 * PAGE_SIZE, + 2 * PAGE_SIZE, 3 }, + { 0, 6, pfn(0, 2, 3, 4, 5, 6), NULL, 6 * PAGE_SIZE, + 2 * PAGE_SIZE, 4 }, + { 0, 6, pfn(0, 1, 3, 4, 5, 6), pfn(7, 8, 9, 10, 11, 12), + 6 * PAGE_SIZE, 12 * PAGE_SIZE, 2 }, + { 0, 0, NULL, NULL, 0, 0, 0 }, }; unsigned int i; for (i = 0, test = tests; test->expected_segments; test++, i++) { + int left_pages = test->pfn_app ? test->num_pages : 0; struct page *pages[MAX_PAGES]; struct sg_table st; struct scatterlist *sg; @@ -84,14 +93,23 @@ int main(void) set_pages(pages, test->pfn, test->num_pages); sg = __sg_alloc_table_from_pages(&st, pages, test->num_pages, 0, - test->size, test->max_seg, NULL, 0, GFP_KERNEL); + test->size, test->max_seg, NULL, left_pages, GFP_KERNEL); assert(PTR_ERR_OR_ZERO(sg) == test->alloc_ret); if (test->alloc_ret) continue; + if (test->pfn_app) { + set_pages(pages, test->pfn_app, test->num_pages); + sg = __sg_alloc_table_from_pages(&st, pages, test->num_pages, 0, + test->size, test->max_seg, sg, 0, GFP_KERNEL); + + assert(PTR_ERR_OR_ZERO(sg) == test->alloc_ret); + } + VALIDATE(st.nents == test->expected_segments, &st, test); - VALIDATE(st.orig_nents == test->expected_segments, &st, test); + if (!test->pfn_app) + VALIDATE(st.orig_nents == test->expected_segments, &st, test); sg_free_table(&st); } |