224914069d
Once an interrupt has been claimed, but before it has been compelted we shouldn't receive any more pending interrupts. This patche keeps track of this to ensure that we don't see any more interrupts until it is completed. Signed-off-by: Alistair Francis <alistair.francis@wdc.com> Message-Id: <394c3f070615ff2b4fab61a1cf9cb48c122913b7.1595655188.git.alistair.francis@wdc.com>
65 lines
1.5 KiB
C
65 lines
1.5 KiB
C
/*
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* QEMU RISC-V lowRISC Ibex PLIC
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*
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* Copyright (c) 2020 Western Digital
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2 or later, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#ifndef HW_IBEX_PLIC_H
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#define HW_IBEX_PLIC_H
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#include "hw/sysbus.h"
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#define TYPE_IBEX_PLIC "ibex-plic"
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#define IBEX_PLIC(obj) \
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OBJECT_CHECK(IbexPlicState, (obj), TYPE_IBEX_PLIC)
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typedef struct IbexPlicState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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MemoryRegion mmio;
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uint32_t *pending;
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uint32_t *claimed;
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uint32_t *source;
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uint32_t *priority;
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uint32_t *enable;
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uint32_t threshold;
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uint32_t claim;
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/* config */
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uint32_t num_cpus;
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uint32_t num_sources;
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uint32_t pending_base;
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uint32_t pending_num;
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uint32_t source_base;
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uint32_t source_num;
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uint32_t priority_base;
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uint32_t priority_num;
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uint32_t enable_base;
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uint32_t enable_num;
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uint32_t threshold_base;
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uint32_t claim_base;
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} IbexPlicState;
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#endif /* HW_IBEX_PLIC_H */
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