an unaligned buffer. The last word of the buffer was not getting flushed
if the buffer was unaligned and fit in a single DMA segment. Now dump(8)
works on both MIPS1 and MIPS3 DECstations.
and the buffer is not 8-byte aligned, it leaves a partial transfer in the
SDRx registers. This could cause data corruption in dump(8) because the
read-ahead buffers are allocated on a non-aligned address. When the read
DMA transfer is interrupted and the current DMA position is not aligned,
call the dma_end() routine to flush the SDRx register contents to the
buffer.
stored in device softc. rasops_cmap[] array is orginazed in 256
iteration of 3 byte long RBG triplet, which does not match with
struct wsdisplay_cmap design.
Drochner's work made in nisimura-pmax-wscons branch. Still a little
to do before useful for DECstation. MI softintr required.
- allow wildcard matchs to have zstty/zskbd/zsms in default hardware
configuration.
- abandon to check zs_ioasic_cnattach() return value; it doesn't fail.
- have zs_ioasic_cnattach() serial line parameters hardcoded inside, in
symmetry with zs_ioasic_lk201_cnattach().
unaligned transfers and adjust the physical address to align the transfer.
If the buffer end just crossed the page boundary, the computation of the
NEXTPTR physical address resulted in using -1. The cleanup at the end of
the DMA transfer would try to copy the residual data to physical address
0x1ffffffc. This would silently corrupt data on the R3000 and usually
would hang the R4000.
different than on the DECstation).
- Use IOASIC_DMA_BLOCKSIZE instead of PAGE_SIZE.
Should make this work on the Alpha. From discussion with
Izumi Tsutsui, Gregory McGarry, and Chris Demetriou, and
much reading of EK-D3SYS-PM.
device and the id string is not found in option ROM string, but
ULTRIX/OSF1 call it so anyway.
- Squash IOASIC DMA buffer allocation into device attach() sequence.
<vm/pglist.h> -> <uvm/uvm_pglist.h>
<vm/vm_inherit.h> -> <uvm/uvm_inherit.h>
<vm/vm_kern.h> -> into <uvm/uvm_extern.h>
<vm/vm_object.h> -> nothing
<vm/vm_pager.h> -> into <uvm/uvm_pager.h>
also includes a bunch of <vm/vm_page.h> include removals (due to redudancy
with <vm/vm.h>), and a scattering of other similar headers.
"off_t" and the return value is a "paddr_t" to allow mappings
at offsets past 2^31 bytes. Somewhat inspired by FreeBSD, which
only changed the offset to a "vm_offset_t".
Includes updates for the i386, pc532 and sh3 mmmmap from Jason Thorpe.
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
resource allocation.
- Insertion and removal of callouts is constant time, important as
this facility is used quite a lot in the kernel.
The old timeout()/untimeout() API has been removed from the kernel.
flexibility in turn; this renderer is 2B stroke (less than 16 pixel
width) font only. If 1B stroke (less than 8 pixel width) font is
ever supported, the font data should be converted into 2B stroke
during font initialization process. 'wsfont_realize()' is to be
proposed in order to have 'CPU and/or accelerator hardware friendly'
format to squeeze maxinum performance.
configured, but after all adapters have been configured. When multiple
adapters are present, only the last configured adapter could be matched
to the boot device slot. The adapter attach routines now check if that
adapter slot matches the boot device slot and saves the softc pointer
for that controller. Then when the disks are configured, dk_establish()
matches the appropriate controller.
-don't set capabilities at compile time
-since our accelerated putchar() doesn't underline, don't claim so
-remove bogus character range check - fonts are not limited to ASCII
-use rasops_unpack_attr() instead of relying on rasops internals
byte) boundaries don't work correctly. Make use of the SDR0/SDR1 registers
to adjust the buffer alignment when starting the DMA transfer. Block device
I/O done by the filesystems will usually be aligned correctly, but character
device I/O may not be aligned correctly. This should fix the problems with
dump(8) failing randomly on DECstations.
- Nuke tc_badaddr() check from asc_tc because the existency check is already
done for real TC devices.
- Nuke tc_badaddr() check from asc_ioasic because it is a builtin device
found in all of IOASIC DECstations.
is found not fully upward compatible to its predecessor. sfbp.c is now
under development.
- Reduce copycols() malfunction, but has still lot of troubles.
to be corrected. Text drawing is now improved significantly, but;
cursor is drawn incorrectly, copycols() trashes a screen, 'standout
(\033[7m)' results in lines reversed entirely until '\033[0m', and
possibly more issues. Not multi-colour, 8bpp only this moment. Costly
write memory barrier instrunctions should be eliminated using framebuffer
address aliasing technique for NetBSD/alpha.
element access instead of C bitfield (hello, BCPL).
- XXX Some TURBOchannel framebuffers might need shutdownhooks(). It
seems not necessarily hardware sprite cursor images are re-initialized
by DECstation PROMs upon exits from kernel.
- XXX It'd be an arguable point to allow user programs to change the
shade of gray freely for pixel value 0 and 1.
starts running can occur on both DMA in and DMA out. I missed the little comment
in the Mach driver for the DMA out case. Also, only ignore the interrupt if the
TC is non-zero (to match the Mach driver).
is written. This significantly reduces, if not eliminates, the problem reported in
PR#5510. It stops the problem on my 5000/200, and two other people have verified that
it fixes the problem on their 5000/200s. I'm waiting for confirmation from the PR
originator before closing the PR.
- returned EOPNOTSUPP rather than -1.
- no check for negative offset.
many of these fix potential security problems in these drivers.
XXX XXX XXX
the d_mmap cdev routine should be changed to have a prototype like:
paddr_t (*d_mmap) __P((dev_t, off_t, int));
by someone!
assigned to unsigned short variable.
- XXX PMAG-DV is supposed to emit virtical retrace interrupt, which can be
used for colormap/cursor update just like other TURBOchannel framebuffers.
bit/pixel format, not planer format. Assign MSB for cursor mask and
LSB for cursor image, where 10 means mask color and 11 for image color.
Image bit order of Bt431 and Bt459 are opposite to MIPS/Alpha processors
while IMS G332 and DC503 (PCC) are indentical.
- Assume that cursor images are 32 pixel padded as ULTRIX/DU ws interface
do. It's natural to X server.
- XXX Vast majority of codes are duplicated between mfb<->tfb and cfb<->sfb.
Code sharing might be achieved in the context of TGA/SFB+ merge.
N.B., Digital UNIX never supports neither PMAG-AA (mfb) nor PMAG-BA (cfb)
for TC Alphas. PMAG-DV (xcfb) is Personal DECstation built in. All should
be good for console, but need much works for cursor/colormap completeness.
struct scsipi_adapter; they were not used.
Add a scsipi_ioctl entry point to struct scsipi_adapter. This will be
used to issue ioctl commands to the host adapters.
Inspired by PR #6090, from Matt Jacob.
