149 lines
3.2 KiB
C++
149 lines
3.2 KiB
C++
/*
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* \brief Pager implementations that are specific for the HW-core
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* \author Martin Stein
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* \date 2012-03-29
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*/
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/*
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* Copyright (C) 2012-2013 Genode Labs GmbH
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*
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* This file is part of the Genode OS framework, which is distributed
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* under the terms of the GNU General Public License version 2.
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*/
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/* Genode includes */
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#include <base/pager.h>
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#include <base/printf.h>
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/* base-hw includes */
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#include <placement_new.h>
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using namespace Genode;
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/*************
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** Mapping **
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*************/
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Mapping::Mapping(addr_t const va, addr_t const pa, bool const wc,
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bool const io, unsigned const sl2, bool const w)
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:
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virt_address(va), phys_address(pa), write_combined(wc),
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io_mem(io), size_log2(sl2), writable(w)
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{ }
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Mapping::Mapping()
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:
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virt_address(0), phys_address(0), write_combined(0),
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io_mem(0), size_log2(0), writable(0)
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{ }
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void Mapping::prepare_map_operation() { }
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/***************
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** Ipc_pager **
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***************/
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addr_t Ipc_pager::fault_ip() const { return _fault.ip; }
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addr_t Ipc_pager::fault_addr() const { return _fault.addr; }
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bool Ipc_pager::is_write_fault() const { return _fault.writes; }
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void Ipc_pager::set_reply_mapping(Mapping m) { _mapping = m; }
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/******************
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** Pager_object **
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******************/
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Thread_capability Pager_object::thread_cap() const { return _thread_cap; }
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void Pager_object::thread_cap(Thread_capability const & c) { _thread_cap = c; }
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Signal * Pager_object::_signal() const { return (Signal *)_signal_buf; }
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void Pager_object::wake_up() { fault_resolved(); }
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void Pager_object::exception_handler(Signal_context_capability) { }
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void Pager_object::fault_resolved() { _signal()->~Signal(); }
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unsigned Pager_object::badge() const { return _badge; }
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void Pager_object::fault_occured(Signal const & s)
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{
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new (_signal()) Signal(s);
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}
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void Pager_object::cap(Native_capability const & c)
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{
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Object_pool<Pager_object>::Entry::cap(c);
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}
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Pager_object::Pager_object(unsigned const badge, Affinity::Location)
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:
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_badge(badge)
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{ }
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unsigned Pager_object::signal_context_id() const
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{
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return _signal_context_cap.dst();
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}
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/***************************
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** Pager_activation_base **
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***************************/
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void Pager_activation_base::ep(Pager_entrypoint * const ep) { _ep = ep; }
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Pager_activation_base::Pager_activation_base(char const * const name,
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size_t const stack_size)
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:
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Thread_base(name, stack_size), _cap_valid(Lock::LOCKED), _ep(0)
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{ }
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Native_capability Pager_activation_base::cap()
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{
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if (!_cap.valid()) { _cap_valid.lock(); }
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return _cap;
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}
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/**********************
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** Pager_entrypoint **
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**********************/
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void Pager_entrypoint::dissolve(Pager_object * const o) { remove_locked(o); }
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Pager_entrypoint::Pager_entrypoint(Cap_session *,
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Pager_activation_base * const activation)
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:
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_activation(activation)
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{
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_activation->ep(this);
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}
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Pager_capability Pager_entrypoint::manage(Pager_object * const o)
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{
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if (!_activation) return Pager_capability();
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o->_signal_context_cap = _activation->Signal_receiver::manage(o);
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unsigned const dst = _activation->cap().dst();
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Native_capability c = Native_capability(dst, o->badge());
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o->cap(c);
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insert(o);
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return reinterpret_cap_cast<Pager_object>(c);
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}
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