3e90542559
Avoids the need to have per IRQ a thread that blocks synchronously for next interrupt. Now a thread may wait for multiple IRQs as other signals simultaneously. In core no threads are required anymore for IRQs/MSI - the clients (either the pci_drv or in case of MSI the driver) gets the IRQ delivered directly as a ordinary Genode signal. Useful since #1216 and #1487 is now available. Commit applies feature of #1446 also to IRQ/MSIs.
45 lines
975 B
C++
45 lines
975 B
C++
/*
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* \brief Nova-specific instance of the IRQ object
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* \author Alexander Boettcher
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*/
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/*
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* Copyright (C) 2015 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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#pragma once
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namespace Genode { class Irq_object; }
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class Genode::Irq_object
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{
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private:
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Signal_context_capability _sigh_cap;
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Genode::addr_t _kernel_caps;
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Genode::addr_t _msi_addr;
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Genode::addr_t _msi_data;
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Genode::addr_t _device_phys; /* PCI config extended address */
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enum { KERNEL_CAP_COUNT_LOG2 = 0 };
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Genode::addr_t const irq_sel() { return _kernel_caps; }
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public:
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Irq_object();
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~Irq_object();
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Genode::addr_t msi_address() const { return _msi_addr; }
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Genode::addr_t msi_value() const { return _msi_data; }
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void sigh(Signal_context_capability cap);
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void ack_irq();
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void start(unsigned irq, Genode::addr_t);
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};
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