mirror of
https://git.FreeBSD.org/src.git
synced 2024-12-22 11:17:19 +00:00
1b1596a3b3
The tag enforces a single restriction that all DMA transactions must not cross a 4GB boundary. Note that while this restriction technically only applies to PCI-express, this change applies it to all PCI devices as it is simpler to implement that way and errs on the side of caution. - Add a softc structure for PCI bus devices to hold the bus_dma tag and a new pci_attach_common() routine that performs actions common to the attach phase of all PCI bus drivers. Right now this only consists of a bootverbose printf and the allocate of a bus_dma tag if necessary. - Adjust all PCI bus drivers to allocate a PCI bus softc and to call pci_attach_common() from their attach routines. MFC after: 2 weeks |
||
---|---|---|
.. | ||
cardbus_cis.c | ||
cardbus_cis.h | ||
cardbus_device.c | ||
cardbus.c | ||
cardbusreg.h | ||
cardbusvar.h |