VME Slave Addressing

VME Slave Addressing

Recall that these base addresses are passed to the driver through the device edtinit() function. Therefore, while you may need a different system file for each Silicon Graphics platform, the driver code itself can still be portable.

Table A-3, Table A-4, and Table A-5 show the mapping of kernel virtual address, physical address, and VME-bus address for each addressing mode. For IP6 and IP12 systems, block mode and burst mode transfers are supported only during DMA, where the VME device is the master. No predefined addresses are available on CHALLENGE/Onyx series systems.

Note: When consulting Table A-3 through Table A-7, note that VME space is set up by software on various hardware platforms. Always use the macro #defines in /usr/include/sys/vmereg.h to refer to the various VME resource address ranges by their logical names.

A24 Kernel/VME-bus Address Mapping
System CPU VME
Modifier Kernel Address
VME0 Kernel Address
VME1 Size
(MB) VME Address Range
IP4/6/12 0x3D 0xBC000000 - 0xBCFFFFFF NA 16 0x0 - 0xFFFFFF
IP4/6/12 0x39 0xBE000000 - 0xBEFFFFFF NA 16 0x0 - 0xFFFFFF
IP5/7/9/17 0x39 0xB2000000 - 0xB2FFFFFF F0000000 - F0FFFFFF 16 0x0 - 0xFFFFFF
IP5/7/9/17 0x3D 0xB3000000 - 0xB3FFFFFF F1000000 - F1FFFFFF 16 0x0 - 0xFFFFFF

A24 Kernel/VME-bus Address Mapping
System CPU	VME Modifier	Kernel Address VME0	Kernel Address VME1	Size (MB)	VME Address Range
IP4/6/12	0x3D	0xBC000000 - 0xBCFFFFFF	NA	16	0x0 - 0xFFFFFF
IP4/6/12	0x39	0xBE000000 - 0xBEFFFFFF	NA	16	0x0 - 0xFFFFFF
IP5/7/9/17	0x39	0xB2000000 - 0xB2FFFFFF	F0000000 - F0FFFFFF	16	0x0 - 0xFFFFFF
IP5/7/9/17	0x3D	0xB3000000 - 0xB3FFFFFF	F1000000 - F1FFFFFF	16	0x0 - 0xFFFFFF

A32 Kernel/VME-bus Address Mapping
System CPU VME
Modifier Kernel Address Size
(MB) VME Address Range
R2300 0x09 0xB8000000 - 0xBBFFFFFF 192 0x18000000 - 0x1BFFFFFF
IP4/6/12 0x09 0xB0000000 - 0xBBFFFFFF 192 0x10000000 - 0x1BFFFFFF
IP5/7/9/17 0x09 0xD0000000 - 0xDFFFFFFF 256 0x10000000 - 0x1FFFFFFF
IP5/7/9/17 0x0D 0xE0000000 - 0xEFFFFFFF 256 0x10000000 - 0x1FFFFFFF

A32 Kernel/VME-bus Address Mapping
System CPU	VME Modifier	Kernel Address	Size (MB)	VME Address Range
R2300	0x09	0xB8000000 - 0xBBFFFFFF	192	0x18000000 - 0x1BFFFFFF
IP4/6/12	0x09	0xB0000000 - 0xBBFFFFFF	192	0x10000000 - 0x1BFFFFFF
IP5/7/9/17	0x09	0xD0000000 - 0xDFFFFFFF	256	0x10000000 - 0x1FFFFFFF
IP5/7/9/17	0x0D	0xE0000000 - 0xEFFFFFFF	256	0x10000000 - 0x1FFFFFFF

Dual VME-bus Address Mapping
System CPU VME
Modifier Kernel Address
VME0 Kernel Address
VME1 Size
(MB) VME Address
Range
IP5/7/9/17 0x9 0xD8000000- DFFFFFFF D0000000- D7FFFFFF 128
128 18000000- 1FFFFFFF
IP5/7/9/17 0xD 0xE8000000- EFFFFFFF E0000000- E8000000 128
128 18000000- 1FFFFFFF

Dual VME-bus Address Mapping
System CPU	VME Modifier	Kernel Address VME0	Kernel Address VME1	Size (MB)	VME Address Range
IP5/7/9/17	0x9	0xD8000000- DFFFFFFF	D0000000- D7FFFFFF	128 128	18000000- 1FFFFFFF
IP5/7/9/17	0xD	0xE8000000- EFFFFFFF	E0000000- E8000000	128 128	18000000- 1FFFFFFF