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463 lines
13 KiB
463 lines
13 KiB
/*
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* Copyright © 2019 Intel Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include "igt.h"
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#include "igt_gt.h"
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#include "i915/gem_vm.h"
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#include "i915_drm.h"
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static int ctx_create_ioctl(int i915, struct drm_i915_gem_context_create_ext *arg)
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{
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int err;
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err = 0;
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if (igt_ioctl(i915, DRM_IOCTL_I915_GEM_CONTEXT_CREATE_EXT, arg)) {
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err = -errno;
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igt_assume(err);
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}
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errno = 0;
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return err;
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}
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static bool has_ctx_clone(int i915)
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{
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struct drm_i915_gem_context_create_ext_clone ext = {
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{ .name = I915_CONTEXT_CREATE_EXT_CLONE },
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.clone_id = -1,
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};
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struct drm_i915_gem_context_create_ext create = {
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.flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS,
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.extensions = to_user_pointer(&ext),
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};
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return ctx_create_ioctl(i915, &create) == -ENOENT;
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}
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static void invalid_clone(int i915)
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{
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struct drm_i915_gem_context_create_ext_clone ext = {
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{ .name = I915_CONTEXT_CREATE_EXT_CLONE },
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};
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struct drm_i915_gem_context_create_ext create = {
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.flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS,
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.extensions = to_user_pointer(&ext),
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};
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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gem_context_destroy(i915, create.ctx_id);
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ext.flags = -1; /* Hopefully we won't run out of flags */
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igt_assert_eq(ctx_create_ioctl(i915, &create), -EINVAL);
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ext.flags = 0;
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ext.base.next_extension = -1;
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igt_assert_eq(ctx_create_ioctl(i915, &create), -EFAULT);
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ext.base.next_extension = to_user_pointer(&ext);
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igt_assert_eq(ctx_create_ioctl(i915, &create), -E2BIG);
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ext.base.next_extension = 0;
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ext.clone_id = -1;
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igt_assert_eq(ctx_create_ioctl(i915, &create), -ENOENT);
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ext.clone_id = 0;
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}
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static void clone_flags(int i915)
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{
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struct drm_i915_gem_context_create_ext_setparam set = {
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{ .name = I915_CONTEXT_CREATE_EXT_SETPARAM },
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{ .param = I915_CONTEXT_PARAM_RECOVERABLE },
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};
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struct drm_i915_gem_context_create_ext_clone ext = {
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{ .name = I915_CONTEXT_CREATE_EXT_CLONE },
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.flags = I915_CONTEXT_CLONE_FLAGS,
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};
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struct drm_i915_gem_context_create_ext create = {
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.flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS,
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.extensions = to_user_pointer(&ext),
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};
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int expected;
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set.param.value = 1; /* default is recoverable */
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igt_require(__gem_context_set_param(i915, &set.param) == 0);
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for (int pass = 0; pass < 2; pass++) { /* cloning default, then child */
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igt_debug("Cloning %d\n", ext.clone_id);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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set.param.ctx_id = ext.clone_id;
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gem_context_get_param(i915, &set.param);
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expected = set.param.value;
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set.param.ctx_id = create.ctx_id;
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.param,
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I915_CONTEXT_PARAM_RECOVERABLE);
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igt_assert_eq((int)set.param.value, expected);
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gem_context_destroy(i915, create.ctx_id);
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expected = set.param.value = 0;
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set.param.ctx_id = ext.clone_id;
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gem_context_set_param(i915, &set.param);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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set.param.ctx_id = create.ctx_id;
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.param,
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I915_CONTEXT_PARAM_RECOVERABLE);
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igt_assert_eq((int)set.param.value, expected);
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gem_context_destroy(i915, create.ctx_id);
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/* clone but then reset priority to default... */
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set.param.ctx_id = 0;
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set.param.value = 1;
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ext.base.next_extension = to_user_pointer(&set);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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ext.base.next_extension = 0;
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/* then new context should have updated priority... */
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set.param.ctx_id = create.ctx_id;
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.value, 1);
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/* but original context should have default priority */
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set.param.ctx_id = ext.clone_id;
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.value, 0);
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gem_context_destroy(i915, create.ctx_id);
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ext.clone_id = gem_context_create(i915);
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}
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gem_context_destroy(i915, ext.clone_id);
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}
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static void clone_engines(int i915)
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{
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struct drm_i915_gem_context_create_ext_setparam set = {
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{ .name = I915_CONTEXT_CREATE_EXT_SETPARAM },
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{ .param = I915_CONTEXT_PARAM_ENGINES },
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};
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struct drm_i915_gem_context_create_ext_clone ext = {
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{ .name = I915_CONTEXT_CREATE_EXT_CLONE },
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.flags = I915_CONTEXT_CLONE_ENGINES,
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};
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struct drm_i915_gem_context_create_ext create = {
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.flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS,
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.extensions = to_user_pointer(&ext),
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};
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I915_DEFINE_CONTEXT_PARAM_ENGINES(expected, 64);
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I915_DEFINE_CONTEXT_PARAM_ENGINES(engines, 64);
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uint64_t ex_size;
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memset(&expected, 0, sizeof(expected));
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memset(&engines, 0, sizeof(engines));
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igt_require(__gem_context_set_param(i915, &set.param) == 0);
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for (int pass = 0; pass < 2; pass++) { /* cloning default, then child */
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igt_debug("Cloning %d\n", ext.clone_id);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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/* Check that we cloned the engine map */
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set.param.ctx_id = ext.clone_id;
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set.param.size = sizeof(expected);
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set.param.value = to_user_pointer(&expected);
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gem_context_get_param(i915, &set.param);
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ex_size = set.param.size;
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set.param.ctx_id = create.ctx_id;
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set.param.size = sizeof(engines);
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set.param.value = to_user_pointer(&engines);
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.param, I915_CONTEXT_PARAM_ENGINES);
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igt_assert_eq_u64(set.param.size, ex_size);
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igt_assert(!memcmp(&engines, &expected, ex_size));
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gem_context_destroy(i915, create.ctx_id);
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/* Check that the clone will replace an earlier set */
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expected.engines[0].engine_class =
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I915_ENGINE_CLASS_INVALID;
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expected.engines[0].engine_instance =
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I915_ENGINE_CLASS_INVALID_NONE;
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ex_size = (sizeof(struct i915_context_param_engines) +
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sizeof(expected.engines[0]));
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set.param.ctx_id = ext.clone_id;
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set.param.size = ex_size;
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set.param.value = to_user_pointer(&expected);
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gem_context_set_param(i915, &set.param);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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set.param.ctx_id = create.ctx_id;
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set.param.size = sizeof(engines);
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set.param.value = to_user_pointer(&engines);
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.size, ex_size);
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igt_assert(!memcmp(&engines, &expected, ex_size));
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gem_context_destroy(i915, create.ctx_id);
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/* clone but then reset engines to default */
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set.param.ctx_id = 0;
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set.param.size = 0;
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set.param.value = 0;
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ext.base.next_extension = to_user_pointer(&set);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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ext.base.next_extension = 0;
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set.param.ctx_id = create.ctx_id;
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set.param.size = sizeof(engines);
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set.param.value = to_user_pointer(&engines);
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.size, 0);
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gem_context_destroy(i915, create.ctx_id);
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/* And check we ignore the flag */
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ext.flags = 0;
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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ext.flags = I915_CONTEXT_CLONE_ENGINES;
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set.param.ctx_id = create.ctx_id;
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set.param.size = sizeof(engines);
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set.param.value = to_user_pointer(&engines);
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.size, 0);
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ext.clone_id = gem_context_create(i915);
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}
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gem_context_destroy(i915, ext.clone_id);
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}
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static void clone_scheduler(int i915)
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{
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struct drm_i915_gem_context_create_ext_setparam set = {
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{ .name = I915_CONTEXT_CREATE_EXT_SETPARAM },
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{ .param = I915_CONTEXT_PARAM_PRIORITY },
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};
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struct drm_i915_gem_context_create_ext_clone ext = {
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{ .name = I915_CONTEXT_CREATE_EXT_CLONE },
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.flags = I915_CONTEXT_CLONE_SCHEDATTR,
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};
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struct drm_i915_gem_context_create_ext create = {
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.flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS,
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.extensions = to_user_pointer(&ext),
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};
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int expected;
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igt_require(__gem_context_set_param(i915, &set.param) == 0);
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for (int pass = 0; pass < 2; pass++) { /* cloning default, then child */
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igt_debug("Cloning %d\n", ext.clone_id);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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set.param.ctx_id = ext.clone_id;
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gem_context_get_param(i915, &set.param);
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expected = set.param.value;
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set.param.ctx_id = create.ctx_id;
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.param, I915_CONTEXT_PARAM_PRIORITY);
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igt_assert_eq((int)set.param.value, expected);
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gem_context_destroy(i915, create.ctx_id);
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expected = set.param.value = 1;
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set.param.ctx_id = ext.clone_id;
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gem_context_set_param(i915, &set.param);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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set.param.ctx_id = create.ctx_id;
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.param, I915_CONTEXT_PARAM_PRIORITY);
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igt_assert_eq((int)set.param.value, expected);
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gem_context_destroy(i915, create.ctx_id);
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/* clone but then reset priority to default */
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set.param.ctx_id = 0;
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set.param.value = 0;
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ext.base.next_extension = to_user_pointer(&set);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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ext.base.next_extension = 0;
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set.param.ctx_id = create.ctx_id;
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.value, 0);
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set.param.ctx_id = ext.clone_id;
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gem_context_get_param(i915, &set.param);
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igt_assert_eq_u64(set.param.value, 1);
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gem_context_destroy(i915, create.ctx_id);
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ext.clone_id = gem_context_create(i915);
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}
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gem_context_destroy(i915, ext.clone_id);
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}
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static uint32_t __batch_create(int i915, uint32_t offset)
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{
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const uint32_t bbe = MI_BATCH_BUFFER_END;
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uint32_t handle;
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handle = gem_create(i915, ALIGN(offset + 4, 4096));
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gem_write(i915, handle, offset, &bbe, sizeof(bbe));
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return handle;
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}
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static uint32_t batch_create(int i915)
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{
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return __batch_create(i915, 0);
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}
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static void check_same_vm(int i915, uint32_t ctx_a, uint32_t ctx_b)
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{
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struct drm_i915_gem_exec_object2 batch = {
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.handle = batch_create(i915),
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};
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struct drm_i915_gem_execbuffer2 eb = {
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.buffers_ptr = to_user_pointer(&batch),
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.buffer_count = 1,
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};
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/* First verify that we try to use "softpinning" by default */
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batch.offset = 48 << 20;
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eb.rsvd1 = ctx_a;
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gem_execbuf(i915, &eb);
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igt_assert_eq_u64(batch.offset, 48 << 20);
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/* An already active VMA will try to keep its offset */
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batch.offset = 0;
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eb.rsvd1 = ctx_b;
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gem_execbuf(i915, &eb);
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igt_assert_eq_u64(batch.offset, 48 << 20);
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gem_sync(i915, batch.handle);
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gem_close(i915, batch.handle);
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gem_quiescent_gpu(i915); /* evict the vma */
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}
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static void clone_vm(int i915)
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{
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struct drm_i915_gem_context_param set = {
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.param = I915_CONTEXT_PARAM_VM,
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};
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struct drm_i915_gem_context_create_ext_clone ext = {
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{ .name = I915_CONTEXT_CREATE_EXT_CLONE },
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.flags = I915_CONTEXT_CLONE_VM,
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};
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struct drm_i915_gem_context_create_ext create = {
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.flags = I915_CONTEXT_CREATE_FLAGS_USE_EXTENSIONS,
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.extensions = to_user_pointer(&ext),
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};
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uint32_t vm_id[2];
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igt_require(__gem_context_set_param(i915, &set) == -ENOENT);
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/* Scrub the VM for our tests */
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i915 = gem_reopen_driver(i915);
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set.ctx_id = gem_context_create(i915);
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gem_context_get_param(i915, &set);
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vm_id[0] = set.value;
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gem_context_destroy(i915, set.ctx_id);
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vm_id[1] = gem_vm_create(i915);
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for (int pass = 0; pass < 2; pass++) { /* cloning default, then child */
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igt_debug("Cloning %d\n", ext.clone_id);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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check_same_vm(i915, ext.clone_id, create.ctx_id);
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gem_context_destroy(i915, create.ctx_id);
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set.value = vm_id[pass];
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set.ctx_id = ext.clone_id;
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gem_context_set_param(i915, &set);
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igt_assert_eq(ctx_create_ioctl(i915, &create), 0);
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check_same_vm(i915, ext.clone_id, create.ctx_id);
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gem_context_destroy(i915, create.ctx_id);
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ext.clone_id = gem_context_create(i915);
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}
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gem_context_destroy(i915, ext.clone_id);
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for (int i = 0; i < ARRAY_SIZE(vm_id); i++)
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gem_vm_destroy(i915, vm_id[i]);
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close(i915);
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}
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igt_main
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{
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int i915 = -1;
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igt_fixture {
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i915 = drm_open_driver(DRIVER_INTEL);
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igt_require_gem(i915);
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gem_require_contexts(i915);
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igt_require(has_ctx_clone(i915));
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igt_fork_hang_detector(i915);
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}
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igt_subtest("invalid")
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invalid_clone(i915);
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igt_subtest("engines")
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clone_engines(i915);
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igt_subtest("flags")
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clone_flags(i915);
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igt_subtest("scheduler")
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clone_scheduler(i915);
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igt_subtest("vm")
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clone_vm(i915);
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igt_fixture {
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igt_stop_hang_detector();
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close(i915);
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}
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}
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