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80f0b679d6
i915_gem_ww_ctx is used to lock all gem bo's for pinning and memory eviction. We don't use it yet, but lets start adding the definition first. To use it, we have to pass a non-NULL ww to gem_object_lock, and don't unlock directly. It is done in i915_gem_ww_ctx_fini. Changes since v1: - Change ww_ctx and obj order in locking functions (Jonas Lahtinen) Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Reviewed-by: Thomas Hellström <thomas.hellstrom@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20200819140904.1708856-6-maarten.lankhorst@linux.intel.com Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
79 lines
1.6 KiB
C
79 lines
1.6 KiB
C
/*
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* SPDX-License-Identifier: MIT
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*
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* Copyright © 2016 Intel Corporation
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*/
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#include "i915_selftest.h"
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#include "selftests/mock_gem_device.h"
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static int mock_phys_object(void *arg)
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{
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struct drm_i915_private *i915 = arg;
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struct drm_i915_gem_object *obj;
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int err;
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/* Create an object and bind it to a contiguous set of physical pages,
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* i.e. exercise the i915_gem_object_phys API.
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*/
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obj = i915_gem_object_create_shmem(i915, PAGE_SIZE);
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if (IS_ERR(obj)) {
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err = PTR_ERR(obj);
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pr_err("i915_gem_object_create failed, err=%d\n", err);
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goto out;
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}
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err = i915_gem_object_attach_phys(obj, PAGE_SIZE);
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if (err) {
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pr_err("i915_gem_object_attach_phys failed, err=%d\n", err);
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goto out_obj;
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}
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if (obj->ops != &i915_gem_phys_ops) {
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pr_err("i915_gem_object_attach_phys did not create a phys object\n");
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err = -EINVAL;
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goto out_obj;
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}
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if (!atomic_read(&obj->mm.pages_pin_count)) {
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pr_err("i915_gem_object_attach_phys did not pin its phys pages\n");
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err = -EINVAL;
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goto out_obj;
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}
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/* Make the object dirty so that put_pages must do copy back the data */
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i915_gem_object_lock(obj, NULL);
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err = i915_gem_object_set_to_gtt_domain(obj, true);
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i915_gem_object_unlock(obj);
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if (err) {
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pr_err("i915_gem_object_set_to_gtt_domain failed with err=%d\n",
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err);
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goto out_obj;
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}
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out_obj:
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i915_gem_object_put(obj);
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out:
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return err;
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}
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int i915_gem_phys_mock_selftests(void)
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{
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static const struct i915_subtest tests[] = {
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SUBTEST(mock_phys_object),
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};
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struct drm_i915_private *i915;
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int err;
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i915 = mock_gem_device();
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if (!i915)
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return -ENOMEM;
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err = i915_subtests(tests, i915);
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drm_dev_put(&i915->drm);
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return err;
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}
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