| 1 | /* |
| 2 | * Virtual Open Firmware |
| 3 | * |
| 4 | * SPDX-License-Identifier: GPL-2.0-or-later |
| 5 | */ |
| 6 | #ifndef HW_VOF_H |
| 7 | #define HW_VOF_H |
| 8 | |
| 9 | #include "qom/object.h" |
| 10 | #include "system/address-spaces.h" |
| 11 | #include "system/memory.h" |
| 12 | #include "exec/cpu-defs.h" |
| 13 | |
| 14 | typedef struct Vof { |
| 15 | uint64_t top_addr; /* copied from rma_size */ |
| 16 | GArray *claimed; /* array of SpaprOfClaimed */ |
| 17 | uint64_t claimed_base; |
| 18 | GHashTable *of_instances; /* ihandle -> SpaprOfInstance */ |
| 19 | uint32_t of_instance_last; |
| 20 | char *bootargs; |
| 21 | long fw_size; |
| 22 | } Vof; |
| 23 | |
| 24 | int vof_client_call(MachineState *ms, Vof *vof, void *fdt, |
| 25 | target_ulong args_real); |
| 26 | uint64_t vof_claim(Vof *vof, uint64_t virt, uint64_t size, uint64_t align); |
| 27 | void vof_init(Vof *vof, uint64_t top_addr, Error **errp); |
| 28 | void vof_cleanup(Vof *vof); |
| 29 | void vof_build_dt(void *fdt, Vof *vof); |
| 30 | uint32_t vof_client_open_store(void *fdt, Vof *vof, const char *nodename, |
| 31 | const char *prop, const char *path); |
| 32 | |
| 33 | #define TYPE_VOF_MACHINE_IF "vof-machine-if" |
| 34 | |
| 35 | typedef struct VofMachineIfClass VofMachineIfClass; |
| 36 | DECLARE_CLASS_CHECKERS(VofMachineIfClass, VOF_MACHINE, TYPE_VOF_MACHINE_IF) |
| 37 | |
| 38 | struct VofMachineIfClass { |
| 39 | InterfaceClass parent; |
| 40 | target_ulong (*client_architecture_support)(MachineState *ms, CPUState *cs, |
| 41 | target_ulong vec); |
| 42 | void (*quiesce)(MachineState *ms); |
| 43 | bool (*setprop)(MachineState *ms, const char *path, const char *propname, |
| 44 | void *val, int vallen); |
| 45 | }; |
| 46 | |
| 47 | /* |
| 48 | * Initial stack size is from |
| 49 | * https://www.devicetree.org/open-firmware/bindings/ppc/release/ppc-2_1.html#REF27292 |
| 50 | * |
| 51 | * "Client programs shall be invoked with a valid stack pointer (r1) with |
| 52 | * at least 32K bytes of memory available for stack growth". |
| 53 | */ |
| 54 | #define VOF_STACK_SIZE 0x8000 |
| 55 | |
| 56 | #define VOF_MEM_READ(pa, buf, size) \ |
| 57 | address_space_read(&address_space_memory, \ |
| 58 | (pa), MEMTXATTRS_UNSPECIFIED, (buf), (size)) |
| 59 | #define VOF_MEM_WRITE(pa, buf, size) \ |
| 60 | address_space_write(&address_space_memory, \ |
| 61 | (pa), MEMTXATTRS_UNSPECIFIED, (buf), (size)) |
| 62 | |
| 63 | #define PROM_ERROR (~0U) |
| 64 | |
| 65 | #endif /* HW_VOF_H */ |