pexpert/pexpert/arm64/boot.h

   1 /*
   2  * Copyright (c) 2007-2009 Apple Inc. All rights reserved.
   3  * Copyright (c) 2000-2006 Apple Computer, Inc. All rights reserved.
   4  */
   5 /*
   6  * @OSF_COPYRIGHT@
   7  */
   8
   9 #ifndef _PEXPERT_ARM64_BOOT_H_
  10 #define _PEXPERT_ARM64_BOOT_H_
  11
  12 #include <kern/kern_types.h>
  13 #include <pexpert/arm/consistent_debug.h>
  14 #include <pexpert/arm/protos.h>
  15
  16 #define BOOT_LINE_LENGTH        256
  17
  18 /*
  19  * Video information..
  20  */
  21
  22 struct Boot_Video {
  23         unsigned long   v_baseAddr;     /* Base address of video memory */
  24         unsigned long   v_display;      /* Display Code (if Applicable */
  25         unsigned long   v_rowBytes;     /* Number of bytes per pixel row */
  26         unsigned long   v_width;        /* Width */
  27         unsigned long   v_height;       /* Height */
  28         unsigned long   v_depth;        /* Pixel Depth and other parameters */
  29 };
  30
  31 #define kBootVideoDepthMask             (0xFF)
  32 #define kBootVideoDepthDepthShift       (0)
  33 #define kBootVideoDepthRotateShift      (8)
  34 #define kBootVideoDepthScaleShift       (16)
  35
  36 #define kBootFlagsDarkBoot              (1 << 0)
  37
  38 typedef struct Boot_Video       Boot_Video;
  39
  40 /* Boot argument structure - passed into Mach kernel at boot time.
  41  */
  42 #define kBootArgsRevision               1
  43 #define kBootArgsRevision2              2       /* added boot_args.bootFlags */
  44 #define kBootArgsVersion1               1
  45 #define kBootArgsVersion2               2
  46
  47 typedef struct boot_args {
  48         uint16_t                Revision;                       /* Revision of boot_args structure */
  49         uint16_t                Version;                        /* Version of boot_args structure */
  50         uint64_t                virtBase;                       /* Virtual base of memory */
  51         uint64_t                physBase;                       /* Physical base of memory */
  52         uint64_t                memSize;                        /* Size of memory */
  53         uint64_t                topOfKernelData;        /* Highest physical address used in kernel data area */
  54         Boot_Video              Video;                          /* Video Information */
  55         uint32_t                machineType;            /* Machine Type */
  56         void                    *deviceTreeP;           /* Base of flattened device tree */
  57         uint32_t                deviceTreeLength;       /* Length of flattened tree */
  58         char                    CommandLine[BOOT_LINE_LENGTH];  /* Passed in command line */
  59         uint64_t                bootFlags;              /* Additional flags specified by the bootloader */
  60         uint64_t                memSizeActual;          /* Actual size of memory */
  61 } boot_args;
  62
  63 #define SOC_DEVICE_TYPE_BUFFER_SIZE     32
  64
  65 #define PC_TRACE_BUF_SIZE               1024
  66
  67 #if SHMCON
  68 #define SHMCON_MEM 0x4000
  69 #else
  70 #define SHMCON_MEM 0
  71 #endif
  72
  73 #define CDBG_MEM ((sizeof(dbg_registry_t) + PAGE_SIZE - 1) & ~PAGE_MASK)
  74
  75 #define PE_EARLY_BOOT_VA (SHMCON_MEM + CDBG_MEM)
  76
  77 #endif /* _PEXPERT_ARM64_BOOT_H_ */
  78