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.
- 0x55 for NEC Vr5500. ISA might be MIPS64.
- 0x38 for Toshiba TX79. This has thirty-two 128bit GPRs while
maintaining 32bit only virtual address space. Any of pointer related
registers have 32bit.
a key to provide extra options or to load a different kernel (much like
biosboot on i386). This saves having to edit the fastboot file just to
boot single-user.
The keyboard works fine now. I don't confirm working internal
ADB track pad.
But an internal IDE drive is not recognized, and
an internal SCSI host controller(sbc driver) don't work yet.
lukem