Scott Long f6b1c44d1f Mega busdma API commit. ... 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		2003-07-01 15:52:06 +00:00
..
pc	use __packed.	2002-09-23 18:54:32 +00:00
_inttypes.h	Since printf(3) now supports the `j' conversion specifier, use that	2002-06-30 05:48:03 +00:00
_limits.h	sys/sys/limits.h:	2003-05-19 20:29:07 +00:00
_stdint.h	Create a new header <machine/_stdint.h> for storing MD parts of	2002-07-29 17:41:23 +00:00
_types.h	- Add vm_paddr_t, a physical address type. This is required for systems	2003-03-25 00:07:06 +00:00
alpha_cpu.h	Use the newer "+" modifier on output contraints when a register or	2002-10-25 20:22:12 +00:00
asm.h	Protect against multiple inclusions.	2003-01-18 23:43:12 +00:00
atomic.h	Workaround for compiling LINT. Large kernels (like LINT) can have	2003-02-23 06:34:21 +00:00
bootinfo.h	Remove __P(). This was tested on the GENERIC kernel.	2002-03-20 18:58:47 +00:00
bus_memio.h
bus_pio.h
bus.h	Mega busdma API commit.	2003-07-01 15:52:06 +00:00
bwx.h	* Completely rewrite the alpha busspace to hide the implementation from	2000-08-28 21:48:13 +00:00
chipset.h	* Completely rewrite the alpha busspace to hide the implementation from	2000-08-28 21:48:13 +00:00
clock.h	Remove __P(). This was tested on the GENERIC kernel.	2002-03-20 18:58:47 +00:00
clockvar.h
cpu.h	Add getcontext, setcontext, and swapcontext as system calls.	2002-11-16 06:35:53 +00:00
cpuconf.h	Remove __P(). This was tested on the GENERIC kernel.	2002-03-20 18:58:47 +00:00
cpufunc.h	Stage-2 commit of the critical*() code. This re-inlines cpu_critical_enter()	2002-04-01 23:51:23 +00:00
critical.h	Stage-2 commit of the critical*() code. This re-inlines cpu_critical_enter()	2002-04-01 23:51:23 +00:00
db_machdep.h	Remove support for running in SimOS. The support has rotted over	2003-02-25 00:42:40 +00:00
elf.h	Move the definition of ElfN_Hashelt to common headers. The only platform	2002-05-30 08:32:18 +00:00
endian.h	Be careful not to define GCC-specific optimizations in the non-GCC	2002-09-23 04:32:17 +00:00
exec.h
float.h	Implement fpclassify():	2003-02-08 20:37:55 +00:00
floatingpoint.h
fpu.h	Add getcontext, setcontext, and swapcontext as system calls.	2002-11-16 06:35:53 +00:00
frame.h	* Move exception_return to exception.s which is a more logical home for it.	2001-02-02 10:20:30 +00:00
ieee.h
ieeefp.h
in_cksum.h
inst.h
intr.h	Introduce a standard name for the lock protecting an interrupt controller	2001-12-20 23:48:31 +00:00
intrcnt.h	Clean up the code exporting interrupt statistics via sysctl a bit:	2001-06-01 13:23:28 +00:00
ioctl_bt848.h	Merge from i386: Add MSP ioctl	2000-10-27 07:07:24 +00:00
ioctl_meteor.h
kse.h	Add files that are new for KSE.	2002-06-29 07:04:59 +00:00
limits.h	sys/sys/limits.h:	2003-05-19 20:29:07 +00:00
md_var.h	Split 4.x and 5.x signal handling so that we can keep 4.x signal	2002-10-25 19:10:58 +00:00
mutex.h	Modify the critical section API as follows:	2001-12-18 00:27:18 +00:00
pal.h
param.h	Migrate the thread stack management functions from the machine-dependent	2003-06-14 23:23:55 +00:00
pcb.h	The a.out md_coredump stuff isn't referenced anywhere anymore, and	2002-10-15 00:02:50 +00:00
pcpu.h	Overhaul the per-CPU support a bit:	2001-12-11 23:33:44 +00:00
pmap.h	- Kill the pv_flags member of the alpha mdpage since it stop being used	2003-04-10 18:42:06 +00:00
proc.h	Protect the per-process UAC field with the proc lock where it isn't already	2003-04-17 21:57:16 +00:00
profile.h	Remove __P(). This was tested on the GENERIC kernel.	2002-03-20 18:58:47 +00:00
prom.h	Change the console interface to pass a "struct consdev *" instead of a	2003-02-20 20:54:45 +00:00
pte.h
ptrace.h	Move the definition of PT_[GS]ET{,DB,FP}REGS from the MD ptrace.h to the	2002-03-16 00:25:53 +00:00
reg.h	Renamed poorly named setregs to exec_setregs. Moved its prototype to	2002-08-29 06:17:48 +00:00
reloc.h
resource.h
rpb.h	Recognize a few newer cpus (pca57, ev67 & ev68) and update systypes to	2001-03-30 22:04:08 +00:00
runq.h	Move the "- 1" into the RQB_FFS(mask) macro itself so that	2002-06-20 06:21:20 +00:00
setjmp.h	Fix namespace issues by using visibility conditionals from	2002-10-05 05:47:56 +00:00
sgmap.h
sigframe.h	Split 4.x and 5.x signal handling so that we can keep 4.x signal	2002-10-25 19:10:58 +00:00
signal.h	Add getcontext, setcontext, and swapcontext as system calls.	2002-11-16 06:35:53 +00:00
smp.h	Remove IPI_HALT to make way for a more correct fix for halts and restarts	2001-08-13 22:41:15 +00:00
stdarg.h	o Add conditionals to allow va_list to be defined in other headers.	2002-10-06 22:01:07 +00:00
swiz.h	* Completely rewrite the alpha busspace to hide the implementation from	2000-08-28 21:48:13 +00:00
sysarch.h	Remove __P(). This was tested on the GENERIC kernel.	2002-03-20 18:58:47 +00:00
ucontext.h	Add getcontext, setcontext, and swapcontext as system calls.	2002-11-16 06:35:53 +00:00
varargs.h	Add conditionals to allow va_list to be defined in other headers.	2002-10-06 22:02:06 +00:00
vmparam.h	- Enable the use of UMA_MD_PAGE_ALLOC on alpha.	2002-11-01 03:34:51 +00:00