d88cf589cb
isa_dmamap_create() calls to their open/close entrypoints. This worked with some luck, but broke on i386 when _bus_dmamap_create started to allocate bounce buffers upfront, since memory below 16M may well not be available when the sound devices is opened for the Nth time. To fix this, create a new simple interface, isa_drq_alloc/isa_drq_free, wrappers around already existing bitmask macros. These are expected to be used before an isa_dmamap_create call, and after an isa_dmamap_destroy call, respectively. For the sb and ad1848 drivers, they're deferred until open/close. All isa_dmamap_create calls can now use BUS_DMA_ALLOCNOW and be done at attach time. |
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| .. | ||
| ansi.h | ||
| aout_machdep.h | ||
| asm.h | ||
| bootinfo.h | ||
| bswap.h | ||
| bus.h | ||
| cdefs.h | ||
| cpu_counter.h | ||
| cpu.h | ||
| cpufunc.h | ||
| darwin_machdep.h | ||
| db_machdep.h | ||
| disklabel.h | ||
| elf_machdep.h | ||
| endian_machdep.h | ||
| endian.h | ||
| float.h | ||
| fpu.h | ||
| frame.h | ||
| ieee.h | ||
| ieeefp.h | ||
| int_const.h | ||
| int_fmtio.h | ||
| int_limits.h | ||
| int_mwgwtypes.h | ||
| int_types.h | ||
| intr.h | ||
| ipkdb.h | ||
| isa_machdep.h | ||
| isapnp_machdep.h | ||
| kcore.h | ||
| kgdb.h | ||
| limits.h | ||
| loadfile_machdep.h | ||
| lock.h | ||
| macho_machdep.h | ||
| Makefile | ||
| math.h | ||
| mcontext.h | ||
| openpicreg.h | ||
| param.h | ||
| pcb.h | ||
| pci_machdep.h | ||
| pio.h | ||
| pmap.h | ||
| pmc.h | ||
| powerpc.h | ||
| proc.h | ||
| profile.h | ||
| psl.h | ||
| pte.h | ||
| ptrace.h | ||
| reg.h | ||
| reloc.h | ||
| setjmp.h | ||
| signal.h | ||
| spkr.h | ||
| stdarg.h | ||
| trap.h | ||
| types.h | ||
| varargs.h | ||
| vmparam.h | ||