786fe805da
On ARM it's relevant to not only distinguish between ordinary cached memory and write-combined one, but also having non-cached memory too. To insert the appropriated page table entries e.g.: in the base-hw kernel, we need to preserve the information about the kind of memory from allocation until the pager resolves a page fault. Therefore, this commit introduces a new Cache_attribute type, and replaces the write_combined boolean with the new type where necessary.
68 lines
1.4 KiB
C++
68 lines
1.4 KiB
C++
/*
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* \brief Implementation of the RAM session interface
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* \author Christian Prochaska
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* \date 2011-05-06
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*/
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/*
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* Copyright (C) 2011-2013 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/env.h>
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#include <base/printf.h>
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#include "ram_session_component.h"
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using namespace Genode;
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Ram_session_component::Ram_session_component(const char *args)
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: _parent_ram_session(env()->parent()->session<Ram_session>(args))
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{ }
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Ram_session_component::~Ram_session_component()
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{ }
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Ram_dataspace_capability Ram_session_component::alloc(size_t ds_size, Cache_attribute cached)
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{
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return _parent_ram_session.alloc(ds_size, cached);
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}
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void Ram_session_component::free(Ram_dataspace_capability ds_cap)
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{
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_parent_ram_session.free(ds_cap);
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}
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int Ram_session_component::ref_account(Ram_session_capability ram_session_cap)
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{
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return _parent_ram_session.ref_account(ram_session_cap);
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}
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int Ram_session_component::transfer_quota(Ram_session_capability ram_session_cap,
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size_t amount)
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{
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return _parent_ram_session.transfer_quota(ram_session_cap, amount);
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}
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size_t Ram_session_component::quota()
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{
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return _parent_ram_session.quota();
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}
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size_t Ram_session_component::used()
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{
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return _parent_ram_session.used();
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}
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