diff options
Diffstat (limited to 'private/mvdm/softpc.new/base/ccpu386/c_page.h')
| -rw-r--r-- | private/mvdm/softpc.new/base/ccpu386/c_page.h | 226 |
1 files changed, 226 insertions, 0 deletions
diff --git a/private/mvdm/softpc.new/base/ccpu386/c_page.h b/private/mvdm/softpc.new/base/ccpu386/c_page.h new file mode 100644 index 000000000..1fa17eefb --- /dev/null +++ b/private/mvdm/softpc.new/base/ccpu386/c_page.h @@ -0,0 +1,226 @@ +/*[ + +c_page.h + +Paging Support. +--------------- + +LOCAL CHAR SccsID[]="@(#)c_page.h 1.7 02/28/95"; + +]*/ + + +/* + Page Access Types. + */ +#define PG_R 0x0 /* Read */ +#define PG_W 0x1 /* Write */ + +/* + Supervisor Memory Access Check Functions. + + Will Check Access as per Supervisor (taking #PF if reqd.), 'A/D' bits + will be set in the Page Entries, no other action occurs. + Normally these routines will be followed by vir_.. calls. + */ +IMPORT IU32 spr_chk_byte + +IPT2( + IU32, lin_addr, + ISM32, access_type + + ); + +IMPORT VOID spr_chk_dword + +IPT2( + IU32, lin_addr, + ISM32, access_type + + ); + +IMPORT VOID spr_chk_word + +IPT2( + IU32, lin_addr, + ISM32, access_type + + ); + + +/* + User Memory Access Check Functions. + + Will Check Access as per User (taking #PF if reqd.), 'A/D' bits will + be set in the Page Entries, no other action occurs. + Normally these routines will be followed by vir_.. calls. + */ +IMPORT IU32 usr_chk_byte + +IPT2( + IU32, lin_addr, + ISM32, access_type + + ); + +IMPORT IU32 usr_chk_dword + +IPT2( + IU32, lin_addr, + ISM32, access_type + + ); + +IMPORT IU32 usr_chk_word + +IPT2( + IU32, lin_addr, + ISM32, access_type + + ); + + +/* + Supervisor Memory Access Functions. + + Will Check Access as per Supervisor (taking #PF if reqd.), 'A/D' + bits will be set in the Page Entries, Map Address and Perform + Read or Write. + */ +IMPORT IU8 spr_read_byte + +IPT1( + IU32, lin_addr + + ); + +IMPORT IU32 spr_read_dword + +IPT1( + IU32, lin_addr + + ); + +IMPORT IU16 spr_read_word + +IPT1( + IU32, lin_addr + + ); + +IMPORT VOID spr_write_byte + +IPT2( + IU32, lin_addr, + IU8, data + + ); + +IMPORT VOID spr_write_dword + +IPT2( + IU32, lin_addr, + IU32, data + + ); + +IMPORT VOID spr_write_word + +IPT2( + IU32, lin_addr, + IU16, data + + ); + + +/* + Virtual Memory Access Functions. + + No Checks are made (assumed already done), just Perform Read or + Write. + This is also the point at which data breakpoints are checked. + */ + +#define NO_PHYSICAL_MAPPING 0 /* Indicates no physical address is + available, the linear address will be + re-mapped. */ + +IMPORT IU8 vir_read_byte + +IPT2( + IU32, lin_addr, + IU32, phy_addr + + ); + +IMPORT IU32 vir_read_dword + +IPT2( + IU32, lin_addr, + IU32, phy_addr + + ); + +IMPORT IU16 vir_read_word + +IPT2( + IU32, lin_addr, + IU32, phy_addr + + ); + +IMPORT VOID vir_write_byte + +IPT3( + IU32, lin_addr, + IU32, phy_addr, + IU8, data + + ); + +IMPORT VOID vir_write_dword + +IPT3( + IU32, lin_addr, + IU32, phy_addr, + IU32, data + + ); + +IMPORT VOID vir_write_word + +IPT3( + IU32, lin_addr, + IU32, phy_addr, + IU16, data + + ); + +#ifdef PIG +IMPORT VOID cannot_vir_write_byte + +IPT3( + IU32, lin_addr, + IU32, phy_addr, + IU8, valid_mask + ); + +IMPORT VOID cannot_vir_write_dword + +IPT3( + IU32, lin_addr, + IU32, phy_addr, + IU32, valid_mask + ); + +IMPORT VOID cannot_vir_write_word + +IPT3( + IU32, lin_addr, + IU32, phy_addr, + IU16, valid_mask + ); +#endif /* PIG */ + +extern void vir_write_bytes IPT4(LIN_ADDR, lin_addr,PHY_ADDR, phy_addr, IU8 *, data, IU32, num_bytes); +extern void vir_read_bytes IPT4(IU8 *, destbuff, LIN_ADDR, lin_addr, PHY_ADDR, phy_addr, IU32, num_bytes); |