I2O_PCI_FREE(9) Message-based devices I2O_PCI_FREE(9)NAME
i2o_pci_free - Frees the DMA memory for the I2O controller
SYNOPSIS
void i2o_pci_free(struct i2o_controller * c);
ARGUMENTS
c
I2O controller to free
DESCRIPTION
Remove all allocated DMA memory and unmap memory IO regions. If MTRR is enabled, also remove it again.
COPYRIGHT Kernel Hackers Manual 2.6. July 2010 I2O_PCI_FREE(9)
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ARTSATA(4) BSD Kernel Interfaces Manual ARTSATA(4)NAME
artsata -- Intel i31244 Serial ATA disk controller driver
SYNOPSIS
artsata* at pci? dev ? function ? flags 0x0000
options PCIIDE_I31244_DISABLEDMA
DESCRIPTION
The artsata driver supports the Intel i31244 Serial ATA and controllers, and provides the interface with the hardware for the ata(4) driver.
The 0x0002 flag forces the artsata driver to disable DMA on chipsets for which DMA would normally be enabled. This can be used as a debug-
ging aid, or to work around problems where the SATA controller is wired up to the system incorrectly.
SEE ALSO ata(4), atapi(4), intro(4), pci(4), pciide(4), wd(4), wdc(4)BUGS
Early samples of the Intel i31244 Serial ATA controller revision 0 had a bug affecting DMA data transfers. Full production samples have been
fixed, but have the same revision number. The PCIIDE_I31244_DISABLEDMA option can be used to disable DMA on the buggy revisions.
BSD February 12, 2005 BSD
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