src-test2/sys/dev/pccbb, branch release/7.2.0_cvs

Copy releng/7.2 to release/7.2.0 for FreeBSD 7.2-RELEASE.

2009-05-01T02:51:58Z

Approved by: re (implicit) This commit was manufactured to restore the state of the 7.2-RELEASE image.

Merge r183539 and r183558: Do match on class to avoid false positives,

2008-11-14T18:09:19Z

return BUS_GENERIC_PROBE for a generic match. Approved by: re@

Make the PCI code aware of PCI domains (aka PCI segments) so we can

2007-09-30T11:05:18Z

support machines having multiple independently numbered PCI domains and don't support reenumeration without ambiguity amongst the devices as seen by the OS and represented by PCI location strings. This includes introducing a function pci_find_dbsf(9) which works like pci_find_bsf(9) but additionally takes a domain number argument and limiting pci_find_bsf(9) to only search devices in domain 0 (the only domain in single-domain systems). Bge(4) and ofw_pcibus(4) are changed to use pci_find_dbsf(9) instead of pci_find_bsf(9) in order to no longer report false positives when searching for siblings and dupe devices in the same domain respectively. Along with this change the sole host-PCI bridge driver converted to actually make use of PCI domain support is uninorth(4), the others continue to use domain 0 only for now and need to be converted as appropriate later on. Note that this means that the format of the location strings as used by pciconf(8) has been changed and that consumers of potentially need to be recompiled. Suggested by: jhb Reviewed by: grehan, jhb, marcel Approved by: re (kensmith), jhb (PCI maintainer hat)

Migrate from setting a CARD_OK flag in a shared word, to setting its

2007-06-04T05:59:44Z

own entry in the softc. This should allow more of cbb_pci_intr() to migrate to a new cbb_pci_filt() so that we don't have to run cbb's ISR in almost every case we get an interrupt. We can't just move cbb_pci_intr into cbb_pci_filt because it does things that aren't safe to do from a fast interrupt handler, err I mean from a filter. This is an important first step. # I wonder if I need to make cardok volatile or not.

Don't register cb_func_filt if the client driver doesn't have a filter.

2007-06-04T03:13:24Z

ditto for the isr. Reviewed/Suggested by: simokawa-san

Minor filter tweaks:

2007-06-03T05:42:05Z

o If we don't have a filter, also check to make sure the card is there before calling the scheduled ISR. This is necessary to help old drivers whose ISRs can't cope with being called with the hardware missing, which sadly still exist in the tree. This is the main reason why we have an extra layer of indirection for cardbus interrupts. o If the card is no longer present, mark the interrupt as 'handled' rather than 'stray' because this accounts for why the interrupt happened. Stray isn't all bad, since there are other filters that would claim it... o Fix some comments + Add comment about why we check for CARD_OK and touch the hardware in both the filter and ISR. + add a note about why we don't care about Giant + also note that giant can't be taken out in a filter... + Some minor formatting nits on very long comments.

Make the interrupt handler wrapper capable of correctly support filter+ithread handler.

2007-05-31T19:29:20Z

Discussed and reviewed with: bsdimp, simokawa

o Don't hold lock over bus_teardown_intr when we're waiting for the

2007-05-16T19:53:49Z

thread to die, since that can cause deadlock with the ISR (in theory). o Minor cleanup o comment nit

Better message on cbb resource alloc failure

2007-05-16T18:44:56Z

Use different wait channel name for second of two sleeps. Minor commentary

2007-03-05T05:40:24Z

addition.