2013-10-30 13:56:57 +01:00
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/*
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* \brief Kernel back-end and core front-end for user interrupts
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* \author Martin Stein
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* \date 2013-10-28
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*/
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/*
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2017-02-20 13:23:52 +01:00
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* Copyright (C) 2013-2017 Genode Labs GmbH
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2013-10-30 13:56:57 +01:00
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*
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* This file is part of the Genode OS framework, which is distributed
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2017-02-20 13:23:52 +01:00
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* under the terms of the GNU Affero General Public License version 3.
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2013-10-30 13:56:57 +01:00
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*/
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/* core includes */
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2019-09-26 14:24:28 +02:00
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#include "kernel.h"
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#include "cpu.h"
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#include "irq.h"
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2013-10-30 13:56:57 +01:00
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2019-07-10 13:30:54 +02:00
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void Kernel::Irq::disable() const {
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cpu_pool().executing_cpu().pic().mask(_irq_nr); }
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2013-10-30 13:56:57 +01:00
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2019-07-10 13:30:54 +02:00
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void Kernel::Irq::enable() const {
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cpu_pool().executing_cpu().pic().unmask(_irq_nr, Cpu::executing_id()); }
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2015-02-18 14:23:54 +01:00
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2015-02-19 14:50:27 +01:00
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base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
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Kernel::Irq::Pool &Kernel::User_irq::_pool()
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2015-02-18 14:23:54 +01:00
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{
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static Irq::Pool p;
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base/core: use references instead of pointers
This patch replaces the former prominent use of pointers by references
wherever feasible. This has the following benefits:
* The contract between caller and callee becomes more obvious. When
passing a reference, the contract says that the argument cannot be
a null pointer. The caller is responsible to ensure that. Therefore,
the use of reference eliminates the need to add defensive null-pointer
checks at the callee site, which sometimes merely exist to be on the
safe side. The bottom line is that the code becomes easier to follow.
* Reference members must be initialized via an object initializer,
which promotes a programming style that avoids intermediate object-
construction states. Within core, there are still a few pointers
as member variables left though. E.g., caused by the late association
of 'Platform_thread' objects with their 'Platform_pd' objects.
* If no pointers are present as member variables, we don't need to
manually provide declarations of a private copy constructor and
an assignment operator to avoid -Weffc++ errors "class ... has
pointer data members [-Werror=effc++]".
This patch also changes a few system bindings on NOVA and Fiasco.OC,
e.g., the return value of the global 'cap_map' accessor has become a
reference. Hence, the patch touches a few places outside of core.
Fixes #3135
2019-01-24 22:00:01 +01:00
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return p;
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2015-02-18 14:23:54 +01:00
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}
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2019-10-16 15:07:11 +02:00
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Kernel::User_irq::User_irq(unsigned const irq,
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Genode::Irq_session::Trigger trigger,
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Genode::Irq_session::Polarity polarity,
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Signal_context & context)
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: Irq(irq, _pool()), _context(context)
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{
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disable();
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cpu_pool().executing_cpu().pic().irq_mode(_irq_nr, trigger, polarity);
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}
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