On 2/29/2024 4:21 PM, Matthew Auld
wrote:
Gives the wrong impression that min page-size has to be tied to the CPU PAGE_SIZE. Signed-off-by: Matthew Auld <matthew.auld@xxxxxxxxx> Cc: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@xxxxxxx> Cc: Christian König <christian.koenig@xxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/gpu/drm/tests/drm_buddy_test.c | 42 +++++++++++++------------- 1 file changed, 21 insertions(+), 21 deletions(-) diff --git a/drivers/gpu/drm/tests/drm_buddy_test.c b/drivers/gpu/drm/tests/drm_buddy_test.c index be2d9d7764be..8528f39a84e6 100644 --- a/drivers/gpu/drm/tests/drm_buddy_test.c +++ b/drivers/gpu/drm/tests/drm_buddy_test.c @@ -329,8 +329,8 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) * Eventually we will have a fully 50% fragmented mm. */ - mm_size = PAGE_SIZE << max_order; - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, PAGE_SIZE), + mm_size = SZ_4K << max_order; + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K), "buddy_init failed\n"); KUNIT_EXPECT_EQ(test, mm.max_order, max_order); @@ -344,7 +344,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) } for (order = top; order--;) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), @@ -358,7 +358,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) } /* There should be one final page for this sub-allocation */ - size = get_size(0, PAGE_SIZE); + size = get_size(0, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM for hole\n"); @@ -368,7 +368,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) list_move_tail(&block->link, &holes); - size = get_size(top, PAGE_SIZE); + size = get_size(top, mm.chunk_size); KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc unexpectedly succeeded at top-order %d/%d, it should be full!", @@ -379,7 +379,7 @@ static void drm_test_buddy_alloc_pathological(struct kunit *test) /* Nothing larger than blocks of chunk_size now available */ for (order = 1; order <= max_order; order++) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc unexpectedly succeeded at order %d, it should be full!", @@ -408,14 +408,14 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) * page left. */ - mm_size = PAGE_SIZE << max_order; - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, PAGE_SIZE), + mm_size = SZ_4K << max_order; + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K), "buddy_init failed\n"); KUNIT_EXPECT_EQ(test, mm.max_order, max_order); for (order = 0; order < max_order; order++) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM with order=%d\n", @@ -428,7 +428,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) } /* And now the last remaining block available */ - size = get_size(0, PAGE_SIZE); + size = get_size(0, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM on final alloc\n"); @@ -440,7 +440,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) /* Should be completely full! */ for (order = max_order; order--;) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc unexpectedly succeeded, it should be full!"); @@ -456,7 +456,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) list_del(&block->link); drm_buddy_free_block(&mm, block); - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM with order=%d\n", @@ -471,7 +471,7 @@ static void drm_test_buddy_alloc_pessimistic(struct kunit *test) } /* To confirm, now the whole mm should be available */ - size = get_size(max_order, PAGE_SIZE); + size = get_size(max_order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc (realloc) hit -ENOMEM with order=%d\n", @@ -502,15 +502,15 @@ static void drm_test_buddy_alloc_optimistic(struct kunit *test) * try to allocate them all. */ - mm_size = PAGE_SIZE * ((1 << (max_order + 1)) - 1); + mm_size = SZ_4K * ((1 << (max_order + 1)) - 1); - KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, PAGE_SIZE), + KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_init(&mm, mm_size, SZ_4K), "buddy_init failed\n"); KUNIT_EXPECT_EQ(test, mm.max_order, max_order); for (order = 0; order <= max_order; order++) { - size = get_size(order, PAGE_SIZE); + size = get_size(order, mm.chunk_size); KUNIT_ASSERT_FALSE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc hit -ENOMEM with order=%d\n", @@ -523,7 +523,7 @@ static void drm_test_buddy_alloc_optimistic(struct kunit *test) } /* Should be completely full! */ - size = get_size(0, PAGE_SIZE); + size = get_size(0, mm.chunk_size); KUNIT_ASSERT_TRUE_MSG(test, drm_buddy_alloc_blocks(&mm, start, mm_size, size, size, &tmp, flags), "buddy_alloc unexpectedly succeeded, it should be full!"); @@ -540,7 +540,7 @@ static void drm_test_buddy_alloc_limit(struct kunit *test) LIST_HEAD(allocated); struct drm_buddy mm; - KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, size, PAGE_SIZE)); + KUNIT_EXPECT_FALSE(test, drm_buddy_init(&mm, size, SZ_4K)); KUNIT_EXPECT_EQ_MSG(test, mm.max_order, DRM_BUDDY_MAX_ORDER, "mm.max_order(%d) != %d\n", mm.max_order, @@ -548,7 +548,7 @@ static void drm_test_buddy_alloc_limit(struct kunit *test) size = mm.chunk_size << mm.max_order; KUNIT_EXPECT_FALSE(test, drm_buddy_alloc_blocks(&mm, start, size, size, - PAGE_SIZE, &allocated, flags)); + mm.chunk_size, &allocated, flags)); block = list_first_entry_or_null(&allocated, struct drm_buddy_block, link); KUNIT_EXPECT_TRUE(test, block); @@ -558,10 +558,10 @@ static void drm_test_buddy_alloc_limit(struct kunit *test) drm_buddy_block_order(block), mm.max_order); KUNIT_EXPECT_EQ_MSG(test, drm_buddy_block_size(&mm, block), - BIT_ULL(mm.max_order) * PAGE_SIZE, + BIT_ULL(mm.max_order) * mm.chunk_size, "block size(%llu) != %llu\n", drm_buddy_block_size(&mm, block), - BIT_ULL(mm.max_order) * PAGE_SIZE); + BIT_ULL(mm.max_order) * mm.chunk_size); drm_buddy_free_list(&mm, &allocated); drm_buddy_fini(&mm);
