drm/i915: Remove dma_buf_kmap selftest (64147c09) · Commits · 戴 / test

drivers/gpu/drm/i915/gem/selftests/i915_gem_dmabuf.c

+0 −101

Original line number	Diff line number	Diff line
		@@ -254,106 +254,6 @@ err_obj:
		return err;
		}

		static int igt_dmabuf_export_kmap(void *arg)
		{
		struct drm_i915_private *i915 = arg;
		struct drm_i915_gem_object *obj;
		struct dma_buf *dmabuf;
		void *ptr;
		int err;

		obj = i915_gem_object_create_shmem(i915, 2 * PAGE_SIZE);
		if (IS_ERR(obj))
		return PTR_ERR(obj);

		dmabuf = i915_gem_prime_export(&obj->base, 0);
		i915_gem_object_put(obj);
		if (IS_ERR(dmabuf)) {
		err = PTR_ERR(dmabuf);
		pr_err("i915_gem_prime_export failed with err=%d\n", err);
		return err;
		}

		ptr = dma_buf_kmap(dmabuf, 0);
		if (!ptr) {
		pr_err("dma_buf_kmap failed\n");
		err = -ENOMEM;
		goto err;
		}

		if (memchr_inv(ptr, 0, PAGE_SIZE)) {
		dma_buf_kunmap(dmabuf, 0, ptr);
		pr_err("Exported page[0] not initialiased to zero!\n");
		err = -EINVAL;
		goto err;
		}

		memset(ptr, 0xc5, PAGE_SIZE);
		dma_buf_kunmap(dmabuf, 0, ptr);

		ptr = i915_gem_object_pin_map(obj, I915_MAP_WB);
		if (IS_ERR(ptr)) {
		err = PTR_ERR(ptr);
		pr_err("i915_gem_object_pin_map failed with err=%d\n", err);
		goto err;
		}
		memset(ptr + PAGE_SIZE, 0xaa, PAGE_SIZE);
		i915_gem_object_flush_map(obj);
		i915_gem_object_unpin_map(obj);

		ptr = dma_buf_kmap(dmabuf, 1);
		if (!ptr) {
		pr_err("dma_buf_kmap failed\n");
		err = -ENOMEM;
		goto err;
		}

		if (memchr_inv(ptr, 0xaa, PAGE_SIZE)) {
		dma_buf_kunmap(dmabuf, 1, ptr);
		pr_err("Exported page[1] not set to 0xaa!\n");
		err = -EINVAL;
		goto err;
		}

		memset(ptr, 0xc5, PAGE_SIZE);
		dma_buf_kunmap(dmabuf, 1, ptr);

		ptr = dma_buf_kmap(dmabuf, 0);
		if (!ptr) {
		pr_err("dma_buf_kmap failed\n");
		err = -ENOMEM;
		goto err;
		}
		if (memchr_inv(ptr, 0xc5, PAGE_SIZE)) {
		dma_buf_kunmap(dmabuf, 0, ptr);
		pr_err("Exported page[0] did not retain 0xc5!\n");
		err = -EINVAL;
		goto err;
		}
		dma_buf_kunmap(dmabuf, 0, ptr);

		ptr = dma_buf_kmap(dmabuf, 2);
		if (ptr) {
		pr_err("Erroneously kmapped beyond the end of the object!\n");
		dma_buf_kunmap(dmabuf, 2, ptr);
		err = -EINVAL;
		goto err;
		}

		ptr = dma_buf_kmap(dmabuf, -1);
		if (ptr) {
		pr_err("Erroneously kmapped before the start of the object!\n");
		dma_buf_kunmap(dmabuf, -1, ptr);
		err = -EINVAL;
		goto err;
		}

		err = 0;
		err:
		dma_buf_put(dmabuf);
		return err;
		}

		int i915_gem_dmabuf_mock_selftests(void)
		{
		static const struct i915_subtest tests[] = {
		@@ -362,7 +262,6 @@ int i915_gem_dmabuf_mock_selftests(void)
		SUBTEST(igt_dmabuf_import),
		SUBTEST(igt_dmabuf_import_ownership),
		SUBTEST(igt_dmabuf_export_vmap),
		SUBTEST(igt_dmabuf_export_kmap),
		};
		struct drm_i915_private *i915;
		int err;

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