Add tests for ttm_bo_validate that focus on BO eviction and swapout.
Update device funcs definition with eviction-related callbacks. Add
alternative funcs where evict_flags() routes eviction to a domain
that can't allocate resources (dubbed "busy manager" in the tests).
Extract the common path of ttm_device init into a function.
Signed-off-by: Karolina Stolarek <karolina.stolarek@xxxxxxxxx>
---
.../gpu/drm/ttm/tests/ttm_bo_validate_test.c | 426 ++++++++++++++++++
drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c | 113 ++++-
drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.h | 7 +
drivers/gpu/drm/ttm/tests/ttm_mock_manager.c | 28 ++
drivers/gpu/drm/ttm/tests/ttm_mock_manager.h | 2 +
5 files changed, 568 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.c b/drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.c
index bf4bae25aec9..c7aa5e087597 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.c
+++ b/drivers/gpu/drm/ttm/tests/ttm_bo_validate_test.c
@@ -758,6 +758,424 @@ static void ttm_bo_validate_move_fence_not_signaled(struct kunit *test)
ttm_mock_manager_fini(priv->ttm_dev, snd_mem);
}
+static void ttm_bo_validate_swapout(struct kunit *test)
+{
+ struct ttm_test_devices *priv = test->priv;
+ unsigned long size_big, size = ALIGN(BO_SIZE, PAGE_SIZE);
+ enum ttm_bo_type bo_type = ttm_bo_type_device;
+ struct ttm_operation_ctx ctx = { };
+ uint32_t mem_type = TTM_PL_VRAM;
+ struct ttm_buffer_object *bo_small, *bo_big;
+ struct ttm_place *place;
+ struct ttm_placement *placement;
+ struct sysinfo si;
+ int err;
+
+ si_meminfo(&si);
+ size_big = ALIGN(((uint64_t)si.totalram * si.mem_unit / 2), PAGE_SIZE);
+
+ ttm_mock_manager_init(priv->ttm_dev, mem_type, size_big + size);
+
+ place = ttm_place_kunit_init(test, mem_type, 0);
+ placement = ttm_placement_kunit_init(test, place, 1, NULL, 0);
+
+ bo_small = kunit_kzalloc(test, sizeof(*bo_small), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_small);
+
+ drm_gem_private_object_init(priv->drm, &bo_small->base, size);
+
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_small, bo_type, placement,
+ PAGE_SIZE, &ctx, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+ dma_resv_unlock(bo_small->base.resv);
+
+ bo_big = ttm_bo_kunit_init(test, priv, size_big);
+
+ dma_resv_lock(bo_big->base.resv, NULL);
+ err = ttm_bo_validate(bo_big, placement, &ctx);
+ dma_resv_unlock(bo_big->base.resv);
+
+ KUNIT_EXPECT_EQ(test, err, 0);
+ KUNIT_EXPECT_NOT_NULL(test, bo_big->resource);
+ KUNIT_EXPECT_EQ(test, bo_big->resource->mem_type, mem_type);
+ KUNIT_EXPECT_EQ(test, bo_small->resource->mem_type, TTM_PL_SYSTEM);
+ KUNIT_EXPECT_TRUE(test, bo_small->ttm->page_flags & TTM_TT_FLAG_SWAPPED);
+
+ ttm_bo_put(bo_big);
+ ttm_bo_put(bo_small);
+
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type);
+}
+
+static void ttm_bo_validate_happy_evict(struct kunit *test)
+{
+ struct ttm_test_devices *priv = test->priv;
+ struct ttm_buffer_object *bos, *bo_val;
+ struct ttm_place *place;
+ struct ttm_placement *placement;
+ enum ttm_bo_type bo_type = ttm_bo_type_device;
+ uint32_t bo_no = 3;
+ uint32_t small = SZ_8K, medium = SZ_512K,
+ big = MANAGER_SIZE - (small + medium);
+ uint32_t bo_sizes[] = { small, medium, big };
+ uint32_t mem_type = TTM_PL_VRAM, mem_type_evict = TTM_PL_SYSTEM;
+ struct ttm_operation_ctx ctx_init = { }, ctx_val = { };
+ int i, err;
+
+ ttm_mock_manager_init(priv->ttm_dev, mem_type, MANAGER_SIZE);
+
+ place = ttm_place_kunit_init(test, mem_type, 0);
+ placement = ttm_placement_kunit_init(test, place, 1, place, 1);
+
+ bos = kunit_kmalloc_array(test, bo_no, sizeof(*bos), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bos);
+
+ memset(bos, 0, sizeof(*bos) * bo_no);
+ for (i = 0; i < bo_no; i++) {
+ drm_gem_private_object_init(priv->drm, &bos[i].base, bo_sizes[i]);
+ err = ttm_bo_init_reserved(priv->ttm_dev, &bos[i], bo_type, placement,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ dma_resv_unlock(bos[i].base.resv);
+ }
+
+ bo_val = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo_val->type = bo_type;
+
+ ttm_bo_reserve(bo_val, false, false, NULL);
+ err = ttm_bo_validate(bo_val, placement, &ctx_val);
+ ttm_bo_unreserve(bo_val);
+
+ KUNIT_EXPECT_EQ(test, err, 0);
+ KUNIT_EXPECT_EQ(test, bos[0].resource->mem_type, mem_type_evict);
+ KUNIT_EXPECT_TRUE(test, bos[0].ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC);
+ KUNIT_EXPECT_TRUE(test, bos[0].ttm->page_flags & TTM_TT_FLAG_PRIV_POPULATED);
+ KUNIT_EXPECT_EQ(test, ctx_val.bytes_moved, small + BO_SIZE);
+ KUNIT_EXPECT_EQ(test, bos[1].resource->mem_type, mem_type);
+
+ for (i = 0; i < bo_no; i++)
+ ttm_bo_put(&bos[i]);
+ ttm_bo_put(bo_val);
+
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type);
+}
+
+static void ttm_bo_validate_all_pinned_evict(struct kunit *test)
+{
+ struct ttm_test_devices *priv = test->priv;
+ struct ttm_place *place;
+ struct ttm_placement *placement;
+ struct ttm_buffer_object *bo_big, *bo_small;
+ enum ttm_bo_type bo_type = ttm_bo_type_device;
+ uint32_t mem_type = TTM_PL_VRAM;
+ struct ttm_operation_ctx ctx_init = { }, ctx_val = { };
+ int err;
+
+ ttm_mock_manager_init(priv->ttm_dev, mem_type, MANAGER_SIZE);
+
+ place = ttm_place_kunit_init(test, mem_type, 0);
+ placement = ttm_placement_kunit_init(test, place, 1, place, 1);
+
+ bo_big = kunit_kzalloc(test, sizeof(*bo_big), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_big);
+
+ drm_gem_private_object_init(priv->drm, &bo_big->base, MANAGER_SIZE);
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_big, bo_type, placement,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+
+ ttm_bo_pin(bo_big);
+ dma_resv_unlock(bo_big->base.resv);
+
+ bo_small = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo_small->type = bo_type;
+
+ ttm_bo_reserve(bo_small, false, false, NULL);
+ err = ttm_bo_validate(bo_small, placement, &ctx_val);
+ ttm_bo_unreserve(bo_small);
+
+ KUNIT_EXPECT_EQ(test, err, -ENOMEM);
+
+ ttm_bo_put(bo_small);
+
+ ttm_bo_reserve(bo_big, false, false, NULL);
+ ttm_bo_unpin(bo_big);
+ dma_resv_unlock(bo_big->base.resv);
+ ttm_bo_put(bo_big);
+
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type);
+}
+
+static void ttm_bo_validate_allowed_only_evict(struct kunit *test)
+{
+ struct ttm_test_devices *priv = test->priv;
+ struct ttm_place *place;
+ struct ttm_placement *placement;
+ struct ttm_buffer_object *bo, *bo_evictable, *bo_pinned;
+ enum ttm_bo_type bo_type = ttm_bo_type_device;
+ uint32_t mem_type = TTM_PL_VRAM, mem_type_evict = TTM_PL_SYSTEM;
+ struct ttm_operation_ctx ctx_init = { }, ctx_val = { };
+ uint32_t size = SZ_512K;
+ int err;
+
+ ttm_mock_manager_init(priv->ttm_dev, mem_type, MANAGER_SIZE);
+
+ place = ttm_place_kunit_init(test, mem_type, 0);
+ placement = ttm_placement_kunit_init(test, place, 1, place, 1);
+
+ bo_pinned = kunit_kzalloc(test, sizeof(*bo_pinned), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_pinned);
+
+ drm_gem_private_object_init(priv->drm, &bo_pinned->base, size);
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_pinned, bo_type, placement,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+ ttm_bo_pin(bo_pinned);
+ dma_resv_unlock(bo_pinned->base.resv);
+
+ bo_evictable = kunit_kzalloc(test, sizeof(*bo_evictable), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_evictable);
+
+ drm_gem_private_object_init(priv->drm, &bo_evictable->base, size);
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_evictable, bo_type, placement,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+ dma_resv_unlock(bo_evictable->base.resv);
+
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo->type = bo_type;
+
+ ttm_bo_reserve(bo, false, false, NULL);
+ err = ttm_bo_validate(bo, placement, &ctx_val);
+ ttm_bo_unreserve(bo);
+
+ KUNIT_EXPECT_EQ(test, err, 0);
+ KUNIT_EXPECT_EQ(test, bo->resource->mem_type, mem_type);
+ KUNIT_EXPECT_EQ(test, bo_pinned->resource->mem_type, mem_type);
+ KUNIT_EXPECT_EQ(test, bo_evictable->resource->mem_type, mem_type_evict);
+ KUNIT_EXPECT_EQ(test, ctx_val.bytes_moved, size + BO_SIZE);
+
+ ttm_bo_put(bo);
+ ttm_bo_put(bo_evictable);
+
+ ttm_bo_reserve(bo_pinned, false, false, NULL);
+ ttm_bo_unpin(bo_pinned);
+ dma_resv_unlock(bo_pinned->base.resv);
+ ttm_bo_put(bo_pinned);
+
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type);
+}
+
+static void ttm_bo_validate_deleted_evict(struct kunit *test)
+{
+ struct ttm_test_devices *priv = test->priv;
+ struct ttm_place *place;
+ struct ttm_placement *placement;
+ struct ttm_buffer_object *bo_big, *bo_small;
+ struct ttm_resource_manager *man;
+ enum ttm_bo_type bo_type = ttm_bo_type_device;
+ uint32_t mem_type = TTM_PL_VRAM;
+ struct ttm_operation_ctx ctx_init = { }, ctx_val = { };
+ uint32_t small = SZ_8K, big = MANAGER_SIZE - BO_SIZE;
+ int err;
+
+ ttm_mock_manager_init(priv->ttm_dev, mem_type, MANAGER_SIZE);
+ man = ttm_manager_type(priv->ttm_dev, mem_type);
+
+ place = ttm_place_kunit_init(test, mem_type, 0);
+ placement = ttm_placement_kunit_init(test, place, 1, place, 1);
+
+ bo_big = kunit_kzalloc(test, sizeof(*bo_big), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_big);
+
+ drm_gem_private_object_init(priv->drm, &bo_big->base, big);
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_big, bo_type, placement,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+ KUNIT_EXPECT_EQ(test, ttm_resource_manager_usage(man), big);
+
+ dma_resv_unlock(bo_big->base.resv);
+ bo_big->deleted = true;
+
+ bo_small = ttm_bo_kunit_init(test, test->priv, small);
+ bo_small->type = bo_type;
+
+ ttm_bo_reserve(bo_small, false, false, NULL);
+ err = ttm_bo_validate(bo_small, placement, &ctx_val);
+ ttm_bo_unreserve(bo_small);
+
+ KUNIT_EXPECT_EQ(test, err, 0);
+ KUNIT_EXPECT_EQ(test, bo_small->resource->mem_type, mem_type);
+ KUNIT_EXPECT_EQ(test, ttm_resource_manager_usage(man), small);
+ KUNIT_EXPECT_NULL(test, bo_big->ttm);
+ KUNIT_EXPECT_NULL(test, bo_big->resource);
+
+ ttm_bo_put(bo_small);
+ ttm_bo_put(bo_big);
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type);
+}
+
+static void ttm_bo_validate_busy_domain_evict(struct kunit *test)
+{
+ struct ttm_test_devices *priv = test->priv;
+ struct ttm_place *place;
+ struct ttm_placement *placement;
+ struct ttm_buffer_object *bo_init, *bo_val;
+ enum ttm_bo_type bo_type = ttm_bo_type_device;
+ uint32_t mem_type = TTM_PL_VRAM, mem_type_evict = TTM_PL_MOCK1;
+ struct ttm_operation_ctx ctx_init = { }, ctx_val = { };
+ int err;
+
+ /*
+ * Drop the default device and setup a new one that points to busy
+ * thus unsuitable eviction domain
+ */
+ ttm_device_fini(priv->ttm_dev);
+
+ err = ttm_device_kunit_init_bad_evict(test->priv, priv->ttm_dev, false, false);
+ KUNIT_ASSERT_EQ(test, err, 0);
+
+ ttm_mock_manager_init(priv->ttm_dev, mem_type, MANAGER_SIZE);
+ ttm_busy_manager_init(priv->ttm_dev, mem_type_evict, MANAGER_SIZE);
+
+ place = ttm_place_kunit_init(test, mem_type, 0);
+ placement = ttm_placement_kunit_init(test, place, 1, place, 1);
+
+ bo_init = kunit_kzalloc(test, sizeof(*bo_init), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_init);
+
+ drm_gem_private_object_init(priv->drm, &bo_init->base, MANAGER_SIZE);
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_init, bo_type, placement,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+ dma_resv_unlock(bo_init->base.resv);
+
+ bo_val = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo_val->type = bo_type;
+
+ ttm_bo_reserve(bo_val, false, false, NULL);
+ err = ttm_bo_validate(bo_val, placement, &ctx_val);
+ ttm_bo_unreserve(bo_val);
+
+ KUNIT_EXPECT_EQ(test, err, -ENOMEM);
+ KUNIT_EXPECT_EQ(test, bo_init->resource->mem_type, mem_type);
+ KUNIT_EXPECT_NULL(test, bo_val->resource);
+
+ ttm_bo_put(bo_init);
+ ttm_bo_put(bo_val);
+
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type);
+ ttm_bad_manager_fini(priv->ttm_dev, mem_type_evict);
+}
+
+static void ttm_bo_validate_evict_gutting(struct kunit *test)
+{
+ struct ttm_test_devices *priv = test->priv;
+ struct ttm_place *place;
+ struct ttm_placement *placement;
+ struct ttm_buffer_object *bo, *bo_evict;
+ enum ttm_bo_type bo_type = ttm_bo_type_device;
+ uint32_t mem_type = TTM_PL_MOCK1;
+ struct ttm_operation_ctx ctx_init = { }, ctx_val = { };
+ int err;
+
+ ttm_mock_manager_init(priv->ttm_dev, mem_type, MANAGER_SIZE);
+
+ place = ttm_place_kunit_init(test, mem_type, 0);
+ placement = ttm_placement_kunit_init(test, place, 1, place, 1);
+
+ bo_evict = kunit_kzalloc(test, sizeof(*bo_evict), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_evict);
+
+ drm_gem_private_object_init(priv->drm, &bo_evict->base, MANAGER_SIZE);
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_evict, bo_type, placement,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+ dma_resv_unlock(bo_evict->base.resv);
+
+ bo = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo->type = bo_type;
+
+ ttm_bo_reserve(bo, false, false, NULL);
+ err = ttm_bo_validate(bo, placement, &ctx_val);
+ ttm_bo_unreserve(bo);
+
+ KUNIT_EXPECT_EQ(test, err, 0);
+ KUNIT_EXPECT_EQ(test, bo->resource->mem_type, mem_type);
+ KUNIT_ASSERT_NULL(test, bo_evict->resource);
+ KUNIT_ASSERT_TRUE(test, bo_evict->ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC);
+
+ ttm_bo_put(bo_evict);
+ ttm_bo_put(bo);
+
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type);
+}
+
+static void ttm_bo_validate_recrusive_evict(struct kunit *test)
+{
+ struct ttm_test_devices *priv = test->priv;
+ struct ttm_buffer_object *bo_tt, *bo_mock, *bo_val;
+ struct ttm_place *place_tt, *place_mock;
+ struct ttm_placement *placement_tt, *placement_mock;
+ enum ttm_bo_type bo_type = ttm_bo_type_device;
+ uint32_t mem_type = TTM_PL_TT, mem_type_evict = TTM_PL_MOCK2;
+ struct ttm_operation_ctx ctx_init = { }, ctx_val = { };
+ int err;
+
+ ttm_mock_manager_init(priv->ttm_dev, mem_type, MANAGER_SIZE);
+ ttm_mock_manager_init(priv->ttm_dev, mem_type_evict, MANAGER_SIZE);
+
+ place_tt = ttm_place_kunit_init(test, mem_type, 0);
+ place_mock = ttm_place_kunit_init(test, mem_type_evict, 0);
+
+ placement_tt = ttm_placement_kunit_init(test, place_tt, 1, place_tt, 1);
+ placement_mock = ttm_placement_kunit_init(test, place_mock,
+ 1, place_mock, 1);
+
+ bo_tt = kunit_kzalloc(test, sizeof(*bo_tt), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_tt);
+
+ bo_mock = kunit_kzalloc(test, sizeof(*bo_mock), GFP_KERNEL);
+ KUNIT_ASSERT_NOT_NULL(test, bo_mock);
+
+ drm_gem_private_object_init(priv->drm, &bo_tt->base, MANAGER_SIZE);
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_tt, bo_type, placement_tt,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+ dma_resv_unlock(bo_tt->base.resv);
+
+ drm_gem_private_object_init(priv->drm, &bo_mock->base, MANAGER_SIZE);
+ err = ttm_bo_init_reserved(priv->ttm_dev, bo_mock, bo_type, placement_mock,
+ PAGE_SIZE, &ctx_init, NULL, NULL,
+ &dummy_ttm_bo_destroy);
+ KUNIT_EXPECT_EQ(test, err, 0);
+ dma_resv_unlock(bo_mock->base.resv);
+
+ bo_val = ttm_bo_kunit_init(test, test->priv, BO_SIZE);
+ bo_val->type = bo_type;
+
+ ttm_bo_reserve(bo_val, false, false, NULL);
+ err = ttm_bo_validate(bo_val, placement_tt, &ctx_val);
+ ttm_bo_unreserve(bo_val);
+
+ KUNIT_EXPECT_EQ(test, err, 0);
+
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type);
+ ttm_mock_manager_fini(priv->ttm_dev, mem_type_evict);
+
+ ttm_bo_put(bo_val);
+ ttm_bo_put(bo_tt);
+ ttm_bo_put(bo_mock);
+}
+
static struct kunit_case ttm_bo_validate_test_cases[] = {
KUNIT_CASE_PARAM(ttm_bo_init_reserved_sys_man, ttm_bo_types_gen_params),
KUNIT_CASE_PARAM(ttm_bo_init_reserved_mock_man, ttm_bo_types_gen_params),
@@ -777,6 +1195,14 @@ static struct kunit_case ttm_bo_validate_test_cases[] = {
KUNIT_CASE(ttm_bo_validate_move_fence_signaled),
KUNIT_CASE_PARAM(ttm_bo_validate_move_fence_not_signaled,
ttm_bo_validate_wait_gen_params),
+ KUNIT_CASE(ttm_bo_validate_swapout),
+ KUNIT_CASE(ttm_bo_validate_happy_evict),
+ KUNIT_CASE(ttm_bo_validate_all_pinned_evict),
+ KUNIT_CASE(ttm_bo_validate_allowed_only_evict),
+ KUNIT_CASE(ttm_bo_validate_deleted_evict),
+ KUNIT_CASE(ttm_bo_validate_busy_domain_evict),
+ KUNIT_CASE(ttm_bo_validate_evict_gutting),
+ KUNIT_CASE(ttm_bo_validate_recrusive_evict),
{}
};
diff --git a/drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c b/drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c
index 719c1d56388e..1be537fc6af3 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c
+++ b/drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.c
@@ -6,6 +6,48 @@
#include "ttm_kunit_helpers.h"
+static const struct ttm_place sys_place = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = TTM_PL_SYSTEM,
+ .flags = 0,
+};
+
+static const struct ttm_place mock1_place = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = TTM_PL_MOCK1,
+ .flags = 0,
+};
+
+static const struct ttm_place mock2_place = {
+ .fpfn = 0,
+ .lpfn = 0,
+ .mem_type = TTM_PL_MOCK2,
+ .flags = 0,
+};
+
+static struct ttm_placement sys_placement = {
+ .num_placement = 1,
+ .placement = &sys_place,
+ .num_busy_placement = 1,
+ .busy_placement = &sys_place,
+};
+
+static struct ttm_placement bad_placement = {
+ .num_placement = 1,
+ .placement = &mock1_place,
+ .num_busy_placement = 1,
+ .busy_placement = &mock1_place,
+};
+
+static struct ttm_placement mock_placement = {
+ .num_placement = 1,
+ .placement = &mock2_place,
+ .num_busy_placement = 1,
+ .busy_placement = &mock2_place,
+};
+
static struct ttm_tt *ttm_tt_simple_create(struct ttm_buffer_object *bo,
uint32_t page_flags)
{
@@ -66,10 +108,53 @@ static int mock_move(struct ttm_buffer_object *bo, bool evict,
return ttm_bo_move_memcpy(bo, ctx, new_mem);
}
+static void mock_evict_flags(struct ttm_buffer_object *bo,
+ struct ttm_placement *placement)
+{
+ switch (bo->resource->mem_type) {
+ case TTM_PL_VRAM:
+ case TTM_PL_SYSTEM:
+ case TTM_PL_MULTIHOP:
+ *placement = sys_placement;
+ break;
+ case TTM_PL_TT:
+ *placement = mock_placement;
+ break;
+ case TTM_PL_MOCK1:
+ /* Purge objects coming from this domain */
+ break;
+ }
+}
+
+static void bad_evict_flags(struct ttm_buffer_object *bo,
+ struct ttm_placement *placement)
+{
+ *placement = bad_placement;
+}
+
+static int ttm_device_kunit_init_with_funcs(struct ttm_test_devices *priv,
+ struct ttm_device *ttm,
+ bool use_dma_alloc,
+ bool use_dma32,
+ struct ttm_device_funcs *funcs)
+{
+ struct drm_device *drm = priv->drm;
+ int err;
+
+ err = ttm_device_init(ttm, funcs, drm->dev,
+ drm->anon_inode->i_mapping,
+ drm->vma_offset_manager,
+ use_dma_alloc, use_dma32);
+
+ return err;
+}
+
struct ttm_device_funcs ttm_dev_funcs = {
.ttm_tt_create = ttm_tt_simple_create,
.ttm_tt_destroy = ttm_tt_simple_destroy,
.move = mock_move,
+ .eviction_valuable = ttm_bo_eviction_valuable,
+ .evict_flags = mock_evict_flags,
};
EXPORT_SYMBOL_GPL(ttm_dev_funcs);
@@ -78,17 +163,29 @@ int ttm_device_kunit_init(struct ttm_test_devices *priv,
bool use_dma_alloc,
bool use_dma32)
{
- struct drm_device *drm = priv->drm;
- int err;
+ return ttm_device_kunit_init_with_funcs(priv, ttm, use_dma_alloc,
+ use_dma32, &ttm_dev_funcs);
+}
+EXPORT_SYMBOL_GPL(ttm_device_kunit_init);
- err = ttm_device_init(ttm, &ttm_dev_funcs, drm->dev,
- drm->anon_inode->i_mapping,
- drm->vma_offset_manager,
- use_dma_alloc, use_dma32);
+struct ttm_device_funcs ttm_dev_funcs_bad_evict = {
+ .ttm_tt_create = ttm_tt_simple_create,
+ .ttm_tt_destroy = ttm_tt_simple_destroy,
+ .move = mock_move,
+ .eviction_valuable = ttm_bo_eviction_valuable,
+ .evict_flags = bad_evict_flags,
+};
+EXPORT_SYMBOL_GPL(ttm_dev_funcs_bad_evict);
- return err;
+int ttm_device_kunit_init_bad_evict(struct ttm_test_devices *priv,
+ struct ttm_device *ttm,
+ bool use_dma_alloc,
+ bool use_dma32)
+{
+ return ttm_device_kunit_init_with_funcs(priv, ttm, use_dma_alloc,
+ use_dma32, &ttm_dev_funcs_bad_evict);
}
-EXPORT_SYMBOL_GPL(ttm_device_kunit_init);
+EXPORT_SYMBOL_GPL(ttm_device_kunit_init_bad_evict);
struct ttm_buffer_object *ttm_bo_kunit_init(struct kunit *test,
struct ttm_test_devices *devs,
diff --git a/drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.h b/drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.h
index a8977eb606e5..977c4605ee4e 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.h
+++ b/drivers/gpu/drm/ttm/tests/ttm_kunit_helpers.h
@@ -14,8 +14,11 @@
#include <kunit/test.h>
#define TTM_PL_MULTIHOP (TTM_PL_PRIV + 1)
+#define TTM_PL_MOCK1 (TTM_PL_PRIV + 2)
+#define TTM_PL_MOCK2 (TTM_PL_PRIV + 3)
extern struct ttm_device_funcs ttm_dev_funcs;
+extern struct ttm_device_funcs ttm_dev_funcs_bad_evict;
struct ttm_test_devices {
struct drm_device *drm;
@@ -28,6 +31,10 @@ int ttm_device_kunit_init(struct ttm_test_devices *priv,
struct ttm_device *ttm,
bool use_dma_alloc,
bool use_dma32);
+int ttm_device_kunit_init_bad_evict(struct ttm_test_devices *priv,
+ struct ttm_device *ttm,
+ bool use_dma_alloc,
+ bool use_dma32);
struct ttm_buffer_object *ttm_bo_kunit_init(struct kunit *test,
struct ttm_test_devices *devs,
size_t size);
diff --git a/drivers/gpu/drm/ttm/tests/ttm_mock_manager.c b/drivers/gpu/drm/ttm/tests/ttm_mock_manager.c
index 21636b96ac38..4dffb3c274da 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_mock_manager.c
+++ b/drivers/gpu/drm/ttm/tests/ttm_mock_manager.c
@@ -153,6 +153,14 @@ static int ttm_bad_manager_alloc(struct ttm_resource_manager *man,
return -ENOSPC;
}
+static int ttm_busy_manager_alloc(struct ttm_resource_manager *man,
+ struct ttm_buffer_object *bo,
+ const struct ttm_place *place,
+ struct ttm_resource **res)
+{
+ return -EBUSY;
+}
+
static void ttm_bad_manager_free(struct ttm_resource_manager *man,
struct ttm_resource *res)
{
@@ -172,6 +180,12 @@ static const struct ttm_resource_manager_func ttm_bad_manager_funcs = {
.compatible = ttm_bad_manager_compatible
};
+static const struct ttm_resource_manager_func ttm_bad_busy_manager_funcs = {
+ .alloc = ttm_busy_manager_alloc,
+ .free = ttm_bad_manager_free,
+ .compatible = ttm_bad_manager_compatible
+};
+
int ttm_bad_manager_init(struct ttm_device *bdev, uint32_t mem_type,
uint32_t size)
{
@@ -191,6 +205,20 @@ int ttm_bad_manager_init(struct ttm_device *bdev, uint32_t mem_type,
}
EXPORT_SYMBOL_GPL(ttm_bad_manager_init);
+int ttm_busy_manager_init(struct ttm_device *bdev, uint32_t mem_type,
+ uint32_t size)
+{
+ struct ttm_resource_manager *man;
+
+ ttm_bad_manager_init(bdev, mem_type, size);
+ man = ttm_manager_type(bdev, mem_type);
+
+ man->func = &ttm_bad_busy_manager_funcs;
+
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ttm_busy_manager_init);
+
void ttm_bad_manager_fini(struct ttm_device *bdev, uint32_t mem_type)
{
struct ttm_resource_manager *man;
diff --git a/drivers/gpu/drm/ttm/tests/ttm_mock_manager.h b/drivers/gpu/drm/ttm/tests/ttm_mock_manager.h
index d2db9de9d876..7a12d73fdc07 100644
--- a/drivers/gpu/drm/ttm/tests/ttm_mock_manager.h
+++ b/drivers/gpu/drm/ttm/tests/ttm_mock_manager.h
@@ -25,6 +25,8 @@ int ttm_mock_manager_init(struct ttm_device *bdev, uint32_t mem_type,
uint32_t size);
int ttm_bad_manager_init(struct ttm_device *bdev, uint32_t mem_type,
uint32_t size);
+int ttm_busy_manager_init(struct ttm_device *bdev, uint32_t mem_type,
+ uint32_t size);
void ttm_mock_manager_fini(struct ttm_device *bdev, uint32_t mem_type);
void ttm_bad_manager_fini(struct ttm_device *bdev, uint32_t mem_type);
--
2.34.1
