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9d67f9fc8e
This patch removes old 'Allocator_guard' utility and replaces its use with the modern 'Constrained_ram_allocator'. The adjustment of core in this respect has the side effect of a more accurate capability accounting in core's CPU, TRACE, and RM services. In particular, the dataspace capabilities needed for core-internal allocations via the 'Sliced_heap' are accounted to the client now. The same goes for nitpicker and nic_dump as other former users of the allocator guard. Hence, the patch also touches code at the client and server sides related to these services. The only remaining user of the 'Allocator_guard' is the Intel GPU driver. As the adaptation of this component would be too invasive without testing, this patch leaves this component unchanged by keeping a copy of the 'allocator_guard.h' locally at the component. Fixes #3750
57 lines
1.7 KiB
C++
57 lines
1.7 KiB
C++
/*
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* \brief Connection to CPU service
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* \author Norman Feske
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* \date 2008-08-22
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*/
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/*
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* Copyright (C) 2008-2017 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 Affero General Public License version 3.
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*/
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#ifndef _INCLUDE__CPU_SESSION__CONNECTION_H_
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#define _INCLUDE__CPU_SESSION__CONNECTION_H_
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#include <cpu_session/client.h>
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#include <base/connection.h>
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namespace Genode { struct Cpu_connection; }
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struct Genode::Cpu_connection : Connection<Cpu_session>, Cpu_session_client
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{
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enum { RAM_QUOTA = 36*1024 };
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/**
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* Constructor
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*
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* \param label initial session label
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* \param priority designated priority of all threads created
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* with this CPU session
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*/
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Cpu_connection(Env &env, const char *label = "", long priority = DEFAULT_PRIORITY,
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Affinity const &affinity = Affinity())
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:
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Connection<Cpu_session>(env,
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session(env.parent(), affinity,
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"priority=0x%lx, ram_quota=%u, "
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"cap_quota=%u, label=\"%s\"",
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priority, RAM_QUOTA, CAP_QUOTA, label)),
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Cpu_session_client(cap())
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{ }
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Thread_capability create_thread(Capability<Pd_session> pd,
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Name const &name,
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Affinity::Location affinity,
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Weight weight,
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addr_t utcb = 0) override
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{
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return retry_with_upgrade(Ram_quota{8*1024}, Cap_quota{2}, [&] () {
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return Cpu_session_client::create_thread(pd, name, affinity, weight, utcb); });
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}
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};
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#endif /* _INCLUDE__CPU_SESSION__CONNECTION_H_ */
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