src/lib/doslib/hw/llmem/llmem.h

   1
   2 #include <stdio.h>
   3 #include <conio.h> /* this is where Open Watcom hides the outp() etc. functions */
   4 #include <stdlib.h>
   5 #include <unistd.h>
   6 #include <string.h>
   7 #include <malloc.h>
   8 #include <assert.h>
   9 #include <fcntl.h>
  10 #include <dos.h>
  11
  12 #include <hw/cpu/cpu.h>
  13 #include <hw/dos/dos.h>
  14
  15 enum {
  16         LLMEMCPY_PF_NONE=0,
  17         LLMEMCPY_PF_386_4KB,            /* 386-compatible two-level 4KB pages */
  18         LLMEMCPY_PF_PSE_4M,             /* Pentium PSE style one-level 4M pages */
  19         LLMEMCPY_PF_PAE_2M,             /* Modern PAE 64-bit pages 2M each */
  20         LLMEMCPY_PF_PSE_4M_VCPI,        /* PSE 4M pages, with one 4KB page for VCPI server compatibility */
  21         LLMEMCPY_PF_PAE_2M_VCPI         /* PAE 2M pages, with two 4KB pages for VCPI compat, and one extra page */
  22 };
  23
  24 extern unsigned char            llmem_probed;
  25 extern unsigned char            llmem_meth_pse;
  26 extern unsigned char            llmem_meth_pae;
  27 extern unsigned char            llmem_available;
  28 extern uint64_t                 llmem_phys_limit;
  29 extern uint64_t                 llmem_pse_limit;
  30 extern const char*              llmem_reason;
  31
  32 extern volatile void FAR*       llmemcpy_pagetables;
  33 extern volatile void FAR*       llmemcpy_pagetables_raw;
  34 extern size_t                   llmemcpy_pagetables_size;
  35 extern unsigned char            llmemcpy_pagefmt;
  36 #if TARGET_MSDOS == 16
  37 extern uint32_t far*            llmemcpy_gdt;
  38 extern uint16_t                 llmemcpy_gdtr[4];
  39 extern uint16_t                 llmemcpy_idtr[4];
  40 extern uint32_t                 llmemcpy_vcpi[0x20];
  41 extern uint32_t                 llmemcpy_vcpi_return[2];
  42 extern uint8_t                  llmemcpy_vcpi_tss[108];
  43 #endif
  44
  45 /* returns 0xFFFFFFFFFFFFFFFF if unmappable */
  46 #if TARGET_MSDOS == 16
  47 uint64_t llmem_ptr2ofs(unsigned char far *ptr);
  48 #else
  49 uint64_t llmem_ptr2ofs(unsigned char *ptr);
  50 #endif
  51
  52 int llmem_init();
  53 void llmemcpy_free();
  54 int llmemcpy_alloc(size_t len,unsigned char typ);
  55 uint32_t llmem_virt_phys_recommended_copy_size();
  56 size_t llmemcpy(uint64_t dst,uint64_t src,size_t len);
  57