/* * QEMU PowerPC pSeries Logical Partition (aka sPAPR) hardware System Emulator * * PAPR Virtualized Interrupt System, aka ICS/ICP aka xics * * Copyright (c) 2010,2011 David Gibson, IBM Corporation. * * Permission is hereby granted, free of charge, to any person obtaining a copy * of this software and associated documentation files (the "Software"), to deal * in the Software without restriction, including without limitation the rights * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell * copies of the Software, and to permit persons to whom the Software is * furnished to do so, subject to the following conditions: * * The above copyright notice and this permission notice shall be included in * all copies or substantial portions of the Software. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN * THE SOFTWARE. * */ #ifndef XICS_H #define XICS_H #include "exec/memory.h" #include "hw/qdev-core.h" #define XICS_IPI 0x2 #define XICS_BUID 0x1 #define XICS_IRQ_BASE (XICS_BUID << 12) /* * We currently only support one BUID which is our interrupt base * (the kernel implementation supports more but we don't exploit * that yet) */ typedef struct ICPStateClass ICPStateClass; typedef struct ICPState ICPState; typedef struct PnvICPState PnvICPState; typedef struct ICSStateClass ICSStateClass; typedef struct ICSState ICSState; typedef struct ICSIRQState ICSIRQState; typedef struct XICSFabric XICSFabric; #define TYPE_ICP "icp" #define ICP(obj) OBJECT_CHECK(ICPState, (obj), TYPE_ICP) #define TYPE_PNV_ICP "pnv-icp" #define PNV_ICP(obj) OBJECT_CHECK(PnvICPState, (obj), TYPE_PNV_ICP) #define ICP_CLASS(klass) \ OBJECT_CLASS_CHECK(ICPStateClass, (klass), TYPE_ICP) #define ICP_GET_CLASS(obj) \ OBJECT_GET_CLASS(ICPStateClass, (obj), TYPE_ICP) struct ICPStateClass { DeviceClass parent_class; DeviceRealize parent_realize; }; struct ICPState { /*< private >*/ DeviceState parent_obj; /*< public >*/ CPUState *cs; ICSState *xirr_owner; uint32_t xirr; uint8_t pending_priority; uint8_t mfrr; qemu_irq output; XICSFabric *xics; }; #define ICP_PROP_XICS "xics" #define ICP_PROP_CPU "cpu" struct PnvICPState { ICPState parent_obj; MemoryRegion mmio; uint32_t links[3]; }; #define TYPE_ICS "ics" #define ICS(obj) OBJECT_CHECK(ICSState, (obj), TYPE_ICS) #define ICS_CLASS(klass) \ OBJECT_CLASS_CHECK(ICSStateClass, (klass), TYPE_ICS) #define ICS_GET_CLASS(obj) \ OBJECT_GET_CLASS(ICSStateClass, (obj), TYPE_ICS) struct ICSStateClass { DeviceClass parent_class; DeviceRealize parent_realize; DeviceReset parent_reset; void (*reject)(ICSState *s, uint32_t irq); void (*resend)(ICSState *s); }; struct ICSState { /*< private >*/ DeviceState parent_obj; /*< public >*/ uint32_t nr_irqs; uint32_t offset; ICSIRQState *irqs; XICSFabric *xics; }; #define ICS_PROP_XICS "xics" static inline bool ics_valid_irq(ICSState *ics, uint32_t nr) { return (nr >= ics->offset) && (nr < (ics->offset + ics->nr_irqs)); } struct ICSIRQState { uint32_t server; uint8_t priority; uint8_t saved_priority; #define XICS_STATUS_ASSERTED 0x1 #define XICS_STATUS_SENT 0x2 #define XICS_STATUS_REJECTED 0x4 #define XICS_STATUS_MASKED_PENDING 0x8 #define XICS_STATUS_PRESENTED 0x10 #define XICS_STATUS_QUEUED 0x20 uint8_t status; /* (flags & XICS_FLAGS_IRQ_MASK) == 0 means the interrupt is not allocated */ #define XICS_FLAGS_IRQ_LSI 0x1 #define XICS_FLAGS_IRQ_MSI 0x2 #define XICS_FLAGS_IRQ_MASK 0x3 uint8_t flags; }; #define TYPE_XICS_FABRIC "xics-fabric" #define XICS_FABRIC(obj) \ INTERFACE_CHECK(XICSFabric, (obj), TYPE_XICS_FABRIC) #define XICS_FABRIC_CLASS(klass) \ OBJECT_CLASS_CHECK(XICSFabricClass, (klass), TYPE_XICS_FABRIC) #define XICS_FABRIC_GET_CLASS(obj) \ OBJECT_GET_CLASS(XICSFabricClass, (obj), TYPE_XICS_FABRIC) typedef struct XICSFabricClass { InterfaceClass parent; ICSState *(*ics_get)(XICSFabric *xi, int irq); void (*ics_resend)(XICSFabric *xi); ICPState *(*icp_get)(XICSFabric *xi, int server); } XICSFabricClass; ICPState *xics_icp_get(XICSFabric *xi, int server); /* Internal XICS interfaces */ void icp_set_cppr(ICPState *icp, uint8_t cppr); void icp_set_mfrr(ICPState *icp, uint8_t mfrr); uint32_t icp_accept(ICPState *ss); uint32_t icp_ipoll(ICPState *ss, uint32_t *mfrr); void icp_eoi(ICPState *icp, uint32_t xirr); void icp_irq(ICSState *ics, int server, int nr, uint8_t priority); void icp_reset(ICPState *icp); void ics_write_xive(ICSState *ics, int nr, int server, uint8_t priority, uint8_t saved_priority); void ics_set_irq(void *opaque, int srcno, int val); static inline bool ics_irq_free(ICSState *ics, uint32_t srcno) { return !(ics->irqs[srcno].flags & XICS_FLAGS_IRQ_MASK); } void ics_set_irq_type(ICSState *ics, int srcno, bool lsi); void icp_pic_print_info(ICPState *icp, Monitor *mon); void ics_pic_print_info(ICSState *ics, Monitor *mon); void ics_resend(ICSState *ics); void icp_resend(ICPState *ss); Object *icp_create(Object *cpu, const char *type, XICSFabric *xi, Error **errp); void icp_destroy(ICPState *icp); /* KVM */ void icp_get_kvm_state(ICPState *icp); int icp_set_kvm_state(ICPState *icp, Error **errp); void icp_synchronize_state(ICPState *icp); void icp_kvm_realize(DeviceState *dev, Error **errp); void ics_get_kvm_state(ICSState *ics); int ics_set_kvm_state_one(ICSState *ics, int srcno, Error **errp); int ics_set_kvm_state(ICSState *ics, Error **errp); void ics_synchronize_state(ICSState *ics); void ics_kvm_set_irq(ICSState *ics, int srcno, int val); #endif /* XICS_H */