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;
; Copyright (c) 2006-2008 Advanced Micro Devices,Inc. ("AMD").
;
; This library is free software; you can redistribute it and/or modify
; it under the terms of the GNU Lesser General Public License as
; published by the Free Software Foundation; either version 2.1 of the
; License, or (at your option) any later version.
;
; This code is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
; Lesser General Public License for more details.
;
; You should have received a copy of the GNU Lesser General
; Public License along with this library; if not, write to the
; Free Software Foundation, Inc., 59 Temple Place, Suite 330,
; Boston, MA 02111-1307 USA
;
;*******************************************************************************
;* This file implements the resource-related macros:
;* SYS_MBUS_DESCRIPTOR
;* SYS_IO_DESCRIPTOR
;* SYS_ALLOCATE_RESOURCE
;* SYS_SET_DECODE
;*******************************************************************************
include sysmgr.inc
.model tiny,c
.586p
.CODE
externdef sys_system_call:proc
;***********************************************************************
; ULONG sys_mbus_descriptor(USHORT Address, ULONG * Buffer, UCHAR IO_Flag);
;
; Returns the MSR address & contents of the descriptor assigned to a
; virtualized PCI address or an I/O address.
;
;***********************************************************************
sys_mbus_descriptor proc pascal \
Address: WORD, \
Buffer: PTR, \
IO_Flag: WORD
mov bx, [Address]
mov cx, [IO_Flag]
mov ax, SYS_CODE_DESCRIPTOR
call sys_system_call
; Returns:
; ECX = MSR address
; EDX:EAX = original MSR value
mov bx, [Buffer] ; Store MSR value into caller's buffer
mov [bx+0], eax
mov [bx+4], edx
push ecx ; Return MSR address
pop ax
pop dx
ret
sys_mbus_descriptor endp
;***********************************************************************
; ULONG sys_resource(USHORT Resource, ULONG Param1, ULONG Param2);
;
; Records a VSM's use of a non-shareable resource (e.g. GPIO, IRQ, etc.)
; If the resources is a memory or I/O PCI BAR, it returns the assigned
; PCI address.
;
;***********************************************************************
sys_resource proc pascal uses edi si \
Resource: BYTE, \
BAR: WORD, \
BaseRange: DWORD, \
Pci_ID: WORD, \
MBus_ID: WORD
mov bl, [Resource]
mov si, [BAR]
mov ecx, [BaseRange]
mov di, [MBus_ID]
shl edi, 16
mov di, [Pci_ID]
mov ax, SYS_CODE_RESOURCE
call sys_system_call
; If xxxx != 0x0000, then return 0x8000xxxx, where xxxx is return value
xor dx, dx
or ax, ax
jz Exit
or dh, 80h
Exit: ret
sys_resource endp
;***********************************************************************
; ULONG __pascal sys_lookup_device(USHORT DeviceID, USHORT Instance);
; Returns the routing bits for the specified Device ID.
;***********************************************************************
sys_lookup_device proc pascal \
Device_ID: word, \
Instance: word
mov bx, [Device_ID]
mov cx, [Instance]
mov ax, SYS_CODE_LOOKUP
call sys_system_call
ret
sys_lookup_device endp
;***********************************************************************
;void Set_Address_Decode(USHORT Address, USHORT Decode)
;***********************************************************************
sys_address_decode proc pascal \
Address: WORD, \
Decode: WORD
mov bx, [Address]
mov cx, [Decode]
mov ax, SYS_CODE_DECODE
call sys_system_call
ret
sys_address_decode endp
END
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