src/sys/dev/ahb, branch release/5.2.1

Make this at least compile on 64 bit platforms. Its been breaking

2003-07-30T20:09:22Z

the alpha tinderbox for far too long.

Mega busdma API commit.

2003-07-01T15:52:06Z

Add two new arguments to bus_dma_tag_create(): lockfunc and lockfuncarg. Lockfunc allows a driver to provide a function for managing its locking semantics while using busdma. At the moment, this is used for the asynchronous busdma_swi and callback mechanism. Two lockfunc implementations are provided: busdma_lock_mutex() performs standard mutex operations on the mutex that is specified from lockfuncarg. dftl_lock() is a panic implementation and is defaulted to when NULL, NULL are passed to bus_dma_tag_create(). The only time that NULL, NULL should ever be used is when the driver ensures that bus_dmamap_load() will not be deferred. Drivers that do not provide their own locking can pass busdma_lock_mutex,&Giant args in order to preserve the former behaviour. sparc64 and powerpc do not provide real busdma_swi functions, so this is largely a noop on those platforms. The busdma_swi on is64 is not properly locked yet, so warnings will be emitted on this platform when busdma callback deferrals happen. If anyone gets panics or warnings from dflt_lock() being called, please let me know right away. Reviewed by: tmm, gibbs

Merge common XPT_CALC_GEOMETRY functions into a single convenience function.

2003-06-14T22:17:41Z

Devices below may experience a change in geometry. * Due to a bug, aic(4) never used extended geometry. Changes all drives >1G to now use extended translation. * sbp(4) drives exactly 1 GB in size now no longer use extended geometry. * umass(4) drives exactly 1 GB in size now no longer use extended geometry. For all other controllers in this commit, this should be a no-op. Looked over by: scottl

Bring back bus_dmasync_op_t. It is now a typedef to an int, though the

2003-05-27T04:59:59Z

BUS_DMASYNC_ definitions remain as before. The does not change the ABI, and reverts the API to be a bit more compatible and flexible. This has survived a full 'make universe'. Approved by: re (bmah)

I deserve a big pointy hat for having missed all those references

2003-04-10T23:50:06Z

to bus_dmasync_op_t in my last commit.

Clean up argument comments for bus_dma_tag_create() calls.

2003-03-29T09:46:10Z

Consolidate MIN/MAX macros into one place (param.h).

2003-02-02T13:17:30Z

Submitted by: Hiten Pandya

Fix new gcc-3.1 warnings. I think this gets GENERIC compiling cleanly

2002-05-24T05:21:36Z

again.

Turn on interrupt-entropy harvesting for all/any mass storage devices

2001-03-01T17:09:09Z

I could find. I have no doubt missed a couple. Interrupt entropy harvesting is still conditional on the kern.random.sys.harvest_interrupt sysctl.

Add the use of M_ZERO to some malloc calls.

2000-10-29T15:47:16Z

Submitted by: josh@zipperup.org Submitted by: Robert Drehmel Approved by: gibbs