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/*
* SPDX-License-Identifier: MIT
*
* Copyright © 2016 Intel Corporation
*/
#include "mock_context.h"
#include "selftests/mock_drm.h"
#include "selftests/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;
struct intel_sseu null_sseu = {};
ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
if (!ctx)
return NULL;
kref_init(&ctx->ref);
INIT_LIST_HEAD(&ctx->link);
ctx->i915 = i915;
INIT_WORK(&ctx->release_work, i915_gem_context_release_work);
mutex_init(&ctx->mutex);
spin_lock_init(&ctx->stale.lock);
INIT_LIST_HEAD(&ctx->stale.engines);
i915_gem_context_set_persistence(ctx);
if (name) {
struct i915_ppgtt *ppgtt;
strncpy(ctx->name, name, sizeof(ctx->name) - 1);
ppgtt = mock_ppgtt(i915, name);
if (!ppgtt)
goto err_free;
ctx->vm = i915_vm_open(&ppgtt->vm);
i915_vm_put(&ppgtt->vm);
}
mutex_init(&ctx->engines_mutex);
e = default_engines(ctx, null_sseu);
if (IS_ERR(e))
goto err_vm;
RCU_INIT_POINTER(ctx->engines, e);
INIT_RADIX_TREE(&ctx->handles_vma, GFP_KERNEL);
mutex_init(&ctx->lut_mutex);
return ctx;
err_vm:
if (ctx->vm)
i915_vm_close(ctx->vm);
err_free:
kfree(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->gem.contexts);
}
struct i915_gem_context *
live_context(struct drm_i915_private *i915, struct file *file)
{
struct drm_i915_file_private *fpriv = to_drm_file(file)->driver_priv;
struct i915_gem_proto_context *pc;
struct i915_gem_context *ctx;
int err;
u32 id;
pc = proto_context_create(i915, 0);
if (IS_ERR(pc))
return ERR_CAST(pc);
ctx = i915_gem_create_context(i915, pc);
proto_context_close(i915, pc);
if (IS_ERR(ctx))
return ctx;
i915_gem_context_set_no_error_capture(ctx);
err = xa_alloc(&fpriv->context_xa, &id, NULL, xa_limit_32b, GFP_KERNEL);
if (err < 0)
goto err_ctx;
gem_context_register(ctx, fpriv, id);
return ctx;
err_ctx:
context_close(ctx);
return ERR_PTR(err);
}
struct i915_gem_context *
live_context_for_engine(struct intel_engine_cs *engine, struct file *file)
{
struct i915_gem_engines *engines;
struct i915_gem_context *ctx;
struct intel_sseu null_sseu = {};
struct intel_context *ce;
engines = alloc_engines(1);
if (!engines)
return ERR_PTR(-ENOMEM);
ctx = live_context(engine->i915, file);
if (IS_ERR(ctx)) {
__free_engines(engines, 0);
return ctx;
}
ce = intel_context_create(engine);
if (IS_ERR(ce)) {
__free_engines(engines, 0);
return ERR_CAST(ce);
}
intel_context_set_gem(ce, ctx, null_sseu);
engines->engines[0] = ce;
engines->num_engines = 1;
mutex_lock(&ctx->engines_mutex);
i915_gem_context_set_user_engines(ctx);
engines = rcu_replace_pointer(ctx->engines, engines, 1);
mutex_unlock(&ctx->engines_mutex);
engines_idle_release(ctx, engines);
return ctx;
}
struct i915_gem_context *
kernel_context(struct drm_i915_private *i915,
struct i915_address_space *vm)
{
struct i915_gem_context *ctx;
struct i915_gem_proto_context *pc;
pc = proto_context_create(i915, 0);
if (IS_ERR(pc))
return ERR_CAST(pc);
if (vm) {
if (pc->vm)
i915_vm_put(pc->vm);
pc->vm = i915_vm_get(vm);
}
ctx = i915_gem_create_context(i915, pc);
proto_context_close(i915, pc);
if (IS_ERR(ctx))
return ctx;
i915_gem_context_clear_bannable(ctx);
i915_gem_context_set_persistence(ctx);
i915_gem_context_set_no_error_capture(ctx);
return ctx;
}
void kernel_context_close(struct i915_gem_context *ctx)
{
context_close(ctx);
}
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