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/*
* Copyright © 2016 Intel Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice (including the next
* paragraph) shall be included in all copies or substantial portions of the
* Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*
*/
#include "mock_context.h"
#include "mock_gtt.h"
struct i915_gem_context *
mock_context(struct drm_i915_private *i915,
const char *name)
{
struct i915_gem_context *ctx;
struct i915_gem_engines *e;
int ret;
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return NULL;
kref_init(&ctx->ref);
INIT_LIST_HEAD(&ctx->link);
ctx->i915 = i915;
mutex_init(&ctx->engines_mutex);
e = default_engines(ctx);
if (IS_ERR(e))
goto err_free;
RCU_INIT_POINTER(ctx->engines, e);
INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
INIT_LIST_HEAD(&ctx->handles_list);
INIT_LIST_HEAD(&ctx->hw_id_link);
INIT_LIST_HEAD(&ctx->active_engines);
mutex_init(&ctx->mutex);
ret = i915_gem_context_pin_hw_id(ctx);
if (ret < 0)
goto err_engines;
if (name) {
struct i915_hw_ppgtt *ppgtt;
ctx->name = kstrdup(name, GFP_KERNEL);
if (!ctx->name)
goto err_put;
ppgtt = mock_ppgtt(i915, name);
if (!ppgtt)
goto err_put;
__set_ppgtt(ctx, ppgtt);
}
return ctx;
err_engines:
free_engines(rcu_access_pointer(ctx->engines));
err_free:
kfree(ctx);
return NULL;
err_put:
i915_gem_context_set_closed(ctx);
i915_gem_context_put(ctx);
return NULL;
}
void mock_context_close(struct i915_gem_context *ctx)
{
context_close(ctx);
}
void mock_init_contexts(struct drm_i915_private *i915)
{
init_contexts(i915);
}
struct i915_gem_context *
live_context(struct drm_i915_private *i915, struct drm_file *file)
{
struct i915_gem_context *ctx;
int err;
lockdep_assert_held(&i915->drm.struct_mutex);
ctx = i915_gem_create_context(i915, 0);
if (IS_ERR(ctx))
return ctx;
err = gem_context_register(ctx, file->driver_priv);
if (err < 0)
goto err_ctx;
return ctx;
err_ctx:
context_close(ctx);
return ERR_PTR(err);
}
struct i915_gem_context *
kernel_context(struct drm_i915_private *i915)
{
return i915_gem_context_create_kernel(i915, I915_PRIORITY_NORMAL);
}
void kernel_context_close(struct i915_gem_context *ctx)
{
context_close(ctx);
}
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