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/*
* QEMU PowerPC PowerNV (POWER8) PHB3 model
*
* Copyright (c) 2014-2020, IBM Corporation.
*
* This code is licensed under the GPL version 2 or later. See the
* COPYING file in the top-level directory.
*/
#ifndef PCI_HOST_PNV_PHB3_H
#define PCI_HOST_PNV_PHB3_H
#include "hw/pci/pcie_host.h"
#include "hw/pci/pcie_port.h"
#include "hw/ppc/xics.h"
#include "qom/object.h"
typedef struct PnvPHB3 PnvPHB3;
/*
* PHB3 XICS Source for MSIs
*/
#define TYPE_PHB3_MSI "phb3-msi"
typedef struct Phb3MsiState Phb3MsiState;
#define PHB3_MSI(obj) OBJECT_CHECK(Phb3MsiState, (obj), TYPE_PHB3_MSI)
#define PHB3_MAX_MSI 2048
struct Phb3MsiState {
ICSState ics;
qemu_irq *qirqs;
PnvPHB3 *phb;
uint64_t rba[PHB3_MAX_MSI / 64];
uint32_t rba_sum;
};
void pnv_phb3_msi_update_config(Phb3MsiState *msis, uint32_t base,
uint32_t count);
void pnv_phb3_msi_send(Phb3MsiState *msis, uint64_t addr, uint16_t data,
int32_t dev_pe);
void pnv_phb3_msi_ffi(Phb3MsiState *msis, uint64_t val);
void pnv_phb3_msi_pic_print_info(Phb3MsiState *msis, Monitor *mon);
/*
* We have one such address space wrapper per possible device under
* the PHB since they need to be assigned statically at qemu device
* creation time. The relationship to a PE is done later dynamically.
* This means we can potentially create a lot of these guys. Q35
* stores them as some kind of radix tree but we never really need to
* do fast lookups so instead we simply keep a QLIST of them for now,
* we can add the radix if needed later on.
*
* We do cache the PE number to speed things up a bit though.
*/
typedef struct PnvPhb3DMASpace {
PCIBus *bus;
uint8_t devfn;
int pe_num; /* Cached PE number */
#define PHB_INVALID_PE (-1)
PnvPHB3 *phb;
AddressSpace dma_as;
IOMMUMemoryRegion dma_mr;
MemoryRegion msi32_mr;
MemoryRegion msi64_mr;
QLIST_ENTRY(PnvPhb3DMASpace) list;
} PnvPhb3DMASpace;
/*
* PHB3 Power Bus Common Queue
*/
#define TYPE_PNV_PBCQ "pnv-pbcq"
typedef struct PnvPBCQState PnvPBCQState;
#define PNV_PBCQ(obj) OBJECT_CHECK(PnvPBCQState, (obj), TYPE_PNV_PBCQ)
struct PnvPBCQState {
DeviceState parent;
uint32_t nest_xbase;
uint32_t spci_xbase;
uint32_t pci_xbase;
#define PBCQ_NEST_REGS_COUNT 0x46
#define PBCQ_PCI_REGS_COUNT 0x15
#define PBCQ_SPCI_REGS_COUNT 0x5
uint64_t nest_regs[PBCQ_NEST_REGS_COUNT];
uint64_t spci_regs[PBCQ_SPCI_REGS_COUNT];
uint64_t pci_regs[PBCQ_PCI_REGS_COUNT];
MemoryRegion mmbar0;
MemoryRegion mmbar1;
MemoryRegion phbbar;
uint64_t mmio0_base;
uint64_t mmio0_size;
uint64_t mmio1_base;
uint64_t mmio1_size;
PnvPHB3 *phb;
MemoryRegion xscom_nest_regs;
MemoryRegion xscom_pci_regs;
MemoryRegion xscom_spci_regs;
};
/*
* PHB3 PCIe Root port
*/
#define TYPE_PNV_PHB3_ROOT_BUS "pnv-phb3-root-bus"
#define TYPE_PNV_PHB3_ROOT_PORT "pnv-phb3-root-port"
typedef struct PnvPHB3RootPort {
PCIESlot parent_obj;
} PnvPHB3RootPort;
/*
* PHB3 PCIe Host Bridge for PowerNV machines (POWER8)
*/
#define TYPE_PNV_PHB3 "pnv-phb3"
#define PNV_PHB3(obj) OBJECT_CHECK(PnvPHB3, (obj), TYPE_PNV_PHB3)
#define PNV_PHB3_NUM_M64 16
#define PNV_PHB3_NUM_REGS (0x1000 >> 3)
#define PNV_PHB3_NUM_LSI 8
#define PNV_PHB3_NUM_PE 256
#define PCI_MMIO_TOTAL_SIZE (0x1ull << 60)
struct PnvPHB3 {
PCIExpressHost parent_obj;
uint32_t chip_id;
uint32_t phb_id;
char bus_path[8];
uint64_t regs[PNV_PHB3_NUM_REGS];
MemoryRegion mr_regs;
MemoryRegion mr_m32;
MemoryRegion mr_m64[PNV_PHB3_NUM_M64];
MemoryRegion pci_mmio;
MemoryRegion pci_io;
uint64_t ioda_LIST[8];
uint64_t ioda_LXIVT[8];
uint64_t ioda_TVT[512];
uint64_t ioda_M64BT[16];
uint64_t ioda_MDT[256];
uint64_t ioda_PEEV[4];
uint32_t total_irq;
ICSState lsis;
qemu_irq *qirqs;
Phb3MsiState msis;
PnvPBCQState pbcq;
PnvPHB3RootPort root;
QLIST_HEAD(, PnvPhb3DMASpace) dma_spaces;
};
uint64_t pnv_phb3_reg_read(void *opaque, hwaddr off, unsigned size);
void pnv_phb3_reg_write(void *opaque, hwaddr off, uint64_t val, unsigned size);
void pnv_phb3_update_regions(PnvPHB3 *phb);
void pnv_phb3_remap_irqs(PnvPHB3 *phb);
#endif /* PCI_HOST_PNV_PHB3_H */
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