cca7fad576
Currently the default DMA window is represented by a single MemoryRegion. However there can be more than just one window so we need a "root" memory region to be separated from the actual DMA window(s). This introduces a "root" IOMMU memory region and adds a subregion for the default DMA 32bit window. Following patches will add other subregion(s). This initializes a default DMA window subregion size to the guest RAM size as this window can be switched into "bypass" mode which implements direct DMA mapping. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Signed-off-by: Alexander Graf <agraf@suse.de>
111 lines
3.2 KiB
C
111 lines
3.2 KiB
C
/*
|
|
* QEMU SPAPR PCI BUS definitions
|
|
*
|
|
* Copyright (c) 2011 Alexey Kardashevskiy <aik@au1.ibm.com>
|
|
*
|
|
* This library is free software; you can redistribute it and/or
|
|
* modify it under the terms of the GNU Lesser General Public
|
|
* License as published by the Free Software Foundation; either
|
|
* version 2 of the License, or (at your option) any later version.
|
|
*
|
|
* This library is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
* Lesser General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU Lesser General Public
|
|
* License along with this library; if not, see <http://www.gnu.org/licenses/>.
|
|
*/
|
|
#if !defined(__HW_SPAPR_H__)
|
|
#error Please include spapr.h before this file!
|
|
#endif
|
|
|
|
#if !defined(__HW_SPAPR_PCI_H__)
|
|
#define __HW_SPAPR_PCI_H__
|
|
|
|
#include "hw/pci/pci.h"
|
|
#include "hw/pci/pci_host.h"
|
|
#include "hw/ppc/xics.h"
|
|
|
|
#define SPAPR_MSIX_MAX_DEVS 32
|
|
|
|
#define TYPE_SPAPR_PCI_HOST_BRIDGE "spapr-pci-host-bridge"
|
|
|
|
#define SPAPR_PCI_HOST_BRIDGE(obj) \
|
|
OBJECT_CHECK(sPAPRPHBState, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
|
|
|
|
#define SPAPR_PCI_HOST_BRIDGE_CLASS(klass) \
|
|
OBJECT_CLASS_CHECK(sPAPRPHBClass, (klass), TYPE_SPAPR_PCI_HOST_BRIDGE)
|
|
#define SPAPR_PCI_HOST_BRIDGE_GET_CLASS(obj) \
|
|
OBJECT_GET_CLASS(sPAPRPHBClass, (obj), TYPE_SPAPR_PCI_HOST_BRIDGE)
|
|
|
|
typedef struct sPAPRPHBClass sPAPRPHBClass;
|
|
typedef struct sPAPRPHBState sPAPRPHBState;
|
|
|
|
struct sPAPRPHBClass {
|
|
PCIHostBridgeClass parent_class;
|
|
|
|
void (*finish_realize)(sPAPRPHBState *sphb, Error **errp);
|
|
};
|
|
|
|
struct sPAPRPHBState {
|
|
PCIHostState parent_obj;
|
|
|
|
int32_t index;
|
|
uint64_t buid;
|
|
char *dtbusname;
|
|
|
|
MemoryRegion memspace, iospace;
|
|
hwaddr mem_win_addr, mem_win_size, io_win_addr, io_win_size;
|
|
MemoryRegion memwindow, iowindow;
|
|
|
|
uint32_t dma_liobn;
|
|
uint64_t dma_window_start;
|
|
uint64_t dma_window_size;
|
|
sPAPRTCETable *tcet;
|
|
AddressSpace iommu_as;
|
|
MemoryRegion iommu_root;
|
|
|
|
struct spapr_pci_lsi {
|
|
uint32_t irq;
|
|
} lsi_table[PCI_NUM_PINS];
|
|
|
|
struct spapr_pci_msi {
|
|
uint32_t config_addr;
|
|
uint32_t irq;
|
|
uint32_t nvec;
|
|
} msi_table[SPAPR_MSIX_MAX_DEVS];
|
|
|
|
QLIST_ENTRY(sPAPRPHBState) list;
|
|
};
|
|
|
|
#define SPAPR_PCI_BASE_BUID 0x800000020000000ULL
|
|
|
|
#define SPAPR_PCI_WINDOW_BASE 0x10000000000ULL
|
|
#define SPAPR_PCI_WINDOW_SPACING 0x1000000000ULL
|
|
#define SPAPR_PCI_MMIO_WIN_OFF 0xA0000000
|
|
#define SPAPR_PCI_MMIO_WIN_SIZE 0x20000000
|
|
#define SPAPR_PCI_IO_WIN_OFF 0x80000000
|
|
#define SPAPR_PCI_IO_WIN_SIZE 0x10000
|
|
|
|
#define SPAPR_PCI_MSI_WINDOW 0x40000000000ULL
|
|
|
|
#define SPAPR_PCI_MEM_WIN_BUS_OFFSET 0x80000000ULL
|
|
|
|
static inline qemu_irq spapr_phb_lsi_qirq(struct sPAPRPHBState *phb, int pin)
|
|
{
|
|
return xics_get_qirq(spapr->icp, phb->lsi_table[pin].irq);
|
|
}
|
|
|
|
PCIHostState *spapr_create_phb(sPAPREnvironment *spapr, int index);
|
|
|
|
int spapr_populate_pci_dt(sPAPRPHBState *phb,
|
|
uint32_t xics_phandle,
|
|
void *fdt);
|
|
|
|
void spapr_pci_msi_init(sPAPREnvironment *spapr, hwaddr addr);
|
|
|
|
void spapr_pci_rtas_init(void);
|
|
|
|
#endif /* __HW_SPAPR_PCI_H__ */
|