TIOCA_DMA_D64
Section: (9)
Updated: 09 October 2005
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NAME
tioca_dma_d64 - create a DMA mapping using 64-bit direct mode
SYNOPSIS
"SYNOPSIS"
uint64_t tioca_dma_d64 (unsigned long paddr);
ARGUMENTS
- paddr
-
system physical address
DESCRIPTION
Map paddr into 64-bit CA bus space. No device context is necessary.
BITS 53
0 come from the coretalk address. We just need to mask in the
following optional bits of the 64-bit pci address:
63
60 - Coretalk Packet Type - 0x1 for Mem Get/Put (coherent)
0x2 for PIO (non-coherent)
We will always use 0x1
55
55 - Swap bytes Currently unused
Index
- NAME
-
- SYNOPSIS
-
- ARGUMENTS
-
- DESCRIPTION
-
- BITS 53
-
- 63
-
- 55
-
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Time: 00:02:55 GMT, October 09, 2005