drivers/gpu/msd-vsl-gc/src/msd_vsl_context.h

// Copyright 2018 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef MSD_VSL_CONTEXT_H
#define MSD_VSL_CONTEXT_H

#include "address_space.h"
#include "magma_util/macros.h"
#include "msd.h"
#include <memory>

class MsdVslContext {
public:
    MsdVslContext(std::shared_ptr<AddressSpace> address_space)
        : address_space_(std::move(address_space))
    {
    }

private:
    std::shared_ptr<AddressSpace> address_space_;
};

class MsdVslAbiContext : public msd_context_t {
public:
    MsdVslAbiContext(std::shared_ptr<MsdVslContext> ptr) : ptr_(std::move(ptr)) { magic_ = kMagic; }

    static MsdVslAbiContext* cast(msd_context_t* context)
    {
        DASSERT(context);
        DASSERT(context->magic_ == kMagic);
        return static_cast<MsdVslAbiContext*>(context);
    }
    std::shared_ptr<MsdVslContext> ptr() { return ptr_; }

private:
    std::shared_ptr<MsdVslContext> ptr_;
    static const uint32_t kMagic = 0x63747874; // "ctxt"
};

#endif // MSD_VSL_CONTEXT_H