in the event that it needs to use a special VM range (x86_64 falls
into this category). We fall back onto kernel_map if machine-dependent
code doesn't create a special map.
For a fixed-rate codec, when AUMODE_RECORD and AUDIO_ENCODING_MULAW or
AUDIO_ENCODING_ALAW, use AUDIO_ENCODING_SLINEAR_LE/16bit for native encoding
instead of AUDIO_ENCODING_ULINEAR/8bit because aurateconv does not support
sampling rate conversion for 8 bit PCM.
This change fixes PR kern/18834.
wanted sizeof(struct disk_sysctl), use the old size. for non-COMPAT_16,
however, we return EINVAL so that all future programs are forced into
passing the wanted size. 1.6 iostat(8) works with -current kernel again.
as seen on tech-kern.
asm code which can be built easily in old-ABI and new-ABI environemnts.
In old-ABI, they map to t4-t7, and in new-ABI, they map to a4-a7. This
means that t0-t3,ta0-ta3,t8,t9 are available in both ABIs.
Because ta0-ta3 overlap with arg regs (albeit arg slots which are usually
unused), they should be used only if t0-t3,t8,t9 isn't enough.
If the VPN / PPN are not aligned to page boundary (the page size
is set by SZ bits in data array 1, which are random when power-up time),
unexpected exception occurs in some rare case, it seems....
Initialize SZ to zero (1KB page). Also, clear VPN / PPN to zero just in case.
Make __sh4_itlb_invalidate_all() static.
ppccalls, with system call numbers starting at 0x6000
fasttraps, with system call numbers starting at 0x7FF0
Because the Mach system call dispatching code has grown a bit
too much, introduce an inline function to handle it (mach_syscall_dispatch).
While we are there, remove the Mach and Linux includes from
arch/powerpc/powerpc/syscall.c and push them into
arch/powerpc/powerpc/{mach|linux}_syscall.c
This is based upon Jason's work on xscale.
Most of the interrupt handling code is now written in C using an asm stub to
call into the C code.
spl* now only updates a software mask, and does not update the hardware,
this should be much faster.
The new code works well on cats, it's untested on netwinder, but should work.
The code implements generic soft interrupts.
More work is still required to bring the isa interrupt handling code upto
scratch currently all isa interrupts are handled at IPL_BIO on the footbridge.
This may cause isa interrupts to be handled later than they should be.
I plan to fix this in the near future.
when trying to play audio CD's on some drives. The original message was :
> In my analysis, rev 1.19 of cd_scsi.c used cd_scsibus_set_mode()
> instead of scsipi_mode_select(). cd_scsibus_set_mode() had the code
> which clear a data.header.data_length, but scsipi_mode_select()
> does not have. So we need `data.header.data_length = 0;' before
> calling scsipi_mode_select().
Fixes PR 7299 and probably PR 15155 and PR 16883 too.
