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blackhat.pw
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kunden
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proc
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thread-self
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root
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usr
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include
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powerpc64-linux-gnu
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asm
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bootx.h
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ /* * This file describes the structure passed from the BootX application * (for MacOS) when it is used to boot Linux. * * Written by Benjamin Herrenschmidt. */ #ifndef __ASM_BOOTX_H__ #define __ASM_BOOTX_H__ #include <linux/types.h> #ifdef macintosh #include <Types.h> #include "linux_type_defs.h" #endif #ifdef macintosh /* All this requires PowerPC alignment */ #pragma options align=power #endif /* On kernel entry: * * r3 = 0x426f6f58 ('BooX') * r4 = pointer to boot_infos * r5 = NULL * * Data and instruction translation disabled, interrupts * disabled, kernel loaded at physical 0x00000000 on PCI * machines (will be different on NuBus). */ #define BOOT_INFO_VERSION 5 #define BOOT_INFO_COMPATIBLE_VERSION 1 /* Bit in the architecture flag mask. More to be defined in future versions. Note that either BOOT_ARCH_PCI or BOOT_ARCH_NUBUS is set. The other BOOT_ARCH_NUBUS_xxx are set additionally when BOOT_ARCH_NUBUS is set. */ #define BOOT_ARCH_PCI 0x00000001UL #define BOOT_ARCH_NUBUS 0x00000002UL #define BOOT_ARCH_NUBUS_PDM 0x00000010UL #define BOOT_ARCH_NUBUS_PERFORMA 0x00000020UL #define BOOT_ARCH_NUBUS_POWERBOOK 0x00000040UL /* Maximum number of ranges in phys memory map */ #define MAX_MEM_MAP_SIZE 26 /* This is the format of an element in the physical memory map. Note that the map is optional and current BootX will only build it for pre-PCI machines */ typedef struct boot_info_map_entry { __u32 physAddr; /* Physical starting address */ __u32 size; /* Size in bytes */ } boot_info_map_entry_t; /* Here are the boot informations that are passed to the bootstrap * Note that the kernel arguments and the device tree are appended * at the end of this structure. */ typedef struct boot_infos { /* Version of this structure */ __u32 version; /* backward compatible down to version: */ __u32 compatible_version; /* NEW (vers. 2) this holds the current _logical_ base addr of the frame buffer (for use by early boot message) */ __u8* logicalDisplayBase; /* NEW (vers. 4) Apple's machine identification */ __u32 machineID; /* NEW (vers. 4) Detected hw architecture */ __u32 architecture; /* The device tree (internal addresses relative to the beginning of the tree, * device tree offset relative to the beginning of this structure). * On pre-PCI macintosh (BOOT_ARCH_PCI bit set to 0 in architecture), this * field is 0. */ __u32 deviceTreeOffset; /* Device tree offset */ __u32 deviceTreeSize; /* Size of the device tree */ /* Some infos about the current MacOS display */ __u32 dispDeviceRect[4]; /* left,top,right,bottom */ __u32 dispDeviceDepth; /* (8, 16 or 32) */ __u8* dispDeviceBase; /* base address (physical) */ __u32 dispDeviceRowBytes; /* rowbytes (in bytes) */ __u32 dispDeviceColorsOffset; /* Colormap (8 bits only) or 0 (*) */ /* Optional offset in the registry to the current * MacOS display. (Can be 0 when not detected) */ __u32 dispDeviceRegEntryOffset; /* Optional pointer to boot ramdisk (offset from this structure) */ __u32 ramDisk; __u32 ramDiskSize; /* size of ramdisk image */ /* Kernel command line arguments (offset from this structure) */ __u32 kernelParamsOffset; /* ALL BELOW NEW (vers. 4) */ /* This defines the physical memory. Valid with BOOT_ARCH_NUBUS flag (non-PCI) only. On PCI, memory is contiguous and its size is in the device-tree. */ boot_info_map_entry_t physMemoryMap[MAX_MEM_MAP_SIZE]; /* Where the phys memory is */ __u32 physMemoryMapSize; /* How many entries in map */ /* The framebuffer size (optional, currently 0) */ __u32 frameBufferSize; /* Represents a max size, can be 0. */ /* NEW (vers. 5) */ /* Total params size (args + colormap + device tree + ramdisk) */ __u32 totalParamsSize; } boot_infos_t; #ifdef macintosh #pragma options align=reset #endif #endif /* __ASM_BOOTX_H__ */