e0cf7b8163
Create "vfp" and "dsp" properties on the armv7m container object which will be forwarded to its CPU object, so that SoCs can configure whether the CPU has these features. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Alex Bennée <alex.bennee@linaro.org> Message-id: 20190517174046.11146-4-peter.maydell@linaro.org
76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
/*
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* ARMv7M CPU object
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*
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* Copyright (c) 2017 Linaro Ltd
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* Written by Peter Maydell <peter.maydell@linaro.org>
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*
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* This code is licensed under the GPL version 2 or later.
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*/
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#ifndef HW_ARM_ARMV7M_H
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#define HW_ARM_ARMV7M_H
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#include "hw/sysbus.h"
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#include "hw/intc/armv7m_nvic.h"
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#include "target/arm/idau.h"
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#define TYPE_BITBAND "ARM,bitband-memory"
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#define BITBAND(obj) OBJECT_CHECK(BitBandState, (obj), TYPE_BITBAND)
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typedef struct {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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AddressSpace source_as;
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MemoryRegion iomem;
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uint32_t base;
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MemoryRegion *source_memory;
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} BitBandState;
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#define TYPE_ARMV7M "armv7m"
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#define ARMV7M(obj) OBJECT_CHECK(ARMv7MState, (obj), TYPE_ARMV7M)
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#define ARMV7M_NUM_BITBANDS 2
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/* ARMv7M container object.
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* + Unnamed GPIO input lines: external IRQ lines for the NVIC
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* + Named GPIO output SYSRESETREQ: signalled for guest AIRCR.SYSRESETREQ
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* + Property "cpu-type": CPU type to instantiate
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* + Property "num-irq": number of external IRQ lines
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* + Property "memory": MemoryRegion defining the physical address space
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* that CPU accesses see. (The NVIC, bitbanding and other CPU-internal
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* devices will be automatically layered on top of this view.)
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* + Property "idau": IDAU interface (forwarded to CPU object)
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* + Property "init-svtor": secure VTOR reset value (forwarded to CPU object)
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* + Property "vfp": enable VFP (forwarded to CPU object)
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* + Property "dsp": enable DSP (forwarded to CPU object)
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* + Property "enable-bitband": expose bitbanded IO
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*/
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typedef struct ARMv7MState {
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/*< private >*/
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SysBusDevice parent_obj;
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/*< public >*/
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NVICState nvic;
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BitBandState bitband[ARMV7M_NUM_BITBANDS];
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ARMCPU *cpu;
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/* MemoryRegion we pass to the CPU, with our devices layered on
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* top of the ones the board provides in board_memory.
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*/
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MemoryRegion container;
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/* Properties */
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char *cpu_type;
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/* MemoryRegion the board provides to us (with its devices, RAM, etc) */
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MemoryRegion *board_memory;
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Object *idau;
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uint32_t init_svtor;
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bool enable_bitband;
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bool start_powered_off;
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bool vfp;
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bool dsp;
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} ARMv7MState;
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#endif
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