[PATCH 2/2] drm/tests/buddy: stop using PAGE_SIZE
Paneer Selvam, Arunpravin
arunpravin.paneerselvam at amd.com
Thu Feb 29 11:10:21 UTC 2024
Reviewed-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam at amd.com>
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 at intel.com>
> Cc: Arunpravin Paneer Selvam<Arunpravin.PaneerSelvam at amd.com>
> Cc: Christian König<christian.koenig at amd.com>
> Cc: Arnd Bergmann<arnd at arndb.de>
> ---
> 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);
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <https://lists.freedesktop.org/archives/dri-devel/attachments/20240229/429cca9d/attachment-0001.htm>
More information about the dri-devel
mailing list