This is an optimised implementation of early printk() for the DECstation.
After the recent conversion to a MIPS-specific generic routine using a
character-by-character output the performance dropped significantly.
This change reverts to the previous speed -- even at 9600 bps of the
serial console the difference is visible with a naked eye; I presume for a
framebuffer it is even worse (it may depend on exactly which one is used
though).
Additionally the change includes a fix for a problem that the old
implementation had -- the format used would not actually limit the length
of the string output. This new implementation uses a local buffer to deal
with it -- even with this additional copying it is much faster than the
generic function.
Plus this driver is registered much earlier than the generic one,
allowing one to see critical messages, such as one about an incorrect CPU
setting used, that are produced beforehand. :-)
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
There are no I/O ports on the DECstation whatsoever in any configuration
as neither the CPU nor the peripheral buses used have a concept of such.
Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Enable Cobalt button support and change ATA driver from BLK_DEV_VIA82CXXX
to PATA_VIA..
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
The current implementation of __pa() for 64-bits kernels with 32-bits
symbols is broken. In this configuration, we need 2 values for
PAGE_OFFSET, one in XKPHYS and the other in CKSEG0 space.
When the value in CKSEG0 space is used, it doesn't take into account
of PHYS_OFFSET. Even worse we can't redefine this value.
The patch restores CPHYSADDR() but in __pa()'s implementation because
it removes the need of 2 PAGE_OFFSET.
OTOH, CPHYSADDR() is quite bad when dealing with mapped kernels. So
this patch assumes there's no need to deal with such kernel in 64-bits
world.
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
For platforms that use PHYS_OFFSET and do not use a mapped kernel,
this patch automatically adds PHYS_OFFSET into PAGE_OFFSET.
Therefore there are no more needs for them to redefine PAGE_OFFSET.
For mapped kernel, they need to redefine PAGE_OFFSET anyways.
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
PAGE_OFFSET definition is now using CAC_BASE by default.
This patch also reorder some macros to make them appear
in the same order for both 32 and 64 bits configs.
It also makes use of const.h generic header file to
annotate constants.
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Before this patch, when a platform needed to customize one constant in
spaces.h, they need to redefine all of them.
Now they can just redefine one constant and include the generic file
header at the end:
#include <asm/mach-generic/spaces.h>
This patch doesn't allow to redefine CAC_BASE, IO_BASE and UNCAC_BASE
for 32 bits platforms because there's no need to do so.
This will avoid some macro duplications. It's important specially if
we'll add complex macros.
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
delete mode 100644 include/asm-mips/mach-ip32/spaces.h
No point in adding yet another #ifdef for Loongson since all this mask is
being used for is converting an XKPHYS address into a physical address
anyway. So replace all definitions by one with the highest architectural
possible value.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Convert old/obsolete NORET_TYPE and ATTRIB_NORET macros to use the
newer standard of "__noreturn" as defined in compiler-gcc.h.
Signed-off-by: Robert P. J. Day <rpjday@mindspring.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This patch adds support for the generic GPIO API to Au1x00 boards. It requires
the generic GPIO patch for MIPS boards by Yoichi Yuasa. Now there is a MIPS
target using it, can you queue these patchset for 2.6.22 ? Thank you very
much in advance.
Signed-off-by: Florian Fainelli <florian.fainelli@telecomint.eu>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
"extern inline" will have different semantics with gcc 4.3, and
"static inline" is correct here.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Use standard missing-syscalls with EXTRA_CFLAGS instead of duplicating
the command. And move the archprepare rule before the archclean rule.
Suggested by Franck Bui-Huu. Also add "echo" to show the target ABI.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6: (31 commits)
firewire: fw-sbp2: fix DMA mapping of management ORBs
firewire: fw-sbp2: fix DMA mapping of command ORBs
firewire: fw-sbp2: fix DMA mapping of S/G tables
firewire: fw-sbp2: add a boundary check
firewire: fw-sbp2: correctly align page tables
firewire: fw-sbp2: memset wants string.h
firewire: fw-sbp2: use correct speed in sbp2_agent_reset
firewire: fw-sbp2: correctly dereference by container_of
firewire: Document userspace ioctl interface.
firewire: fw-sbp2: implement nonexclusive login
firewire: fw-sbp2: let SCSI shutdown commands through before logout
firewire: fw-sbp2: implement max sectors limit for some old bridges
firewire: simplify a struct type
firewire: support S100B...S400B and link slower than PHY
firewire: optimize gap count with 1394b leaf nodes
firewire: remove unused macro
firewire: missing newline in printk
firewire: fw-sbp2: remove unused struct member
ieee1394: remove old isochronous ABI
ieee1394: sbp2: change some module parameters from int to bool
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid:
HID: handle cases of volume knobs generating relative values
HID: Logitech keyboard 0xc311 needs reset leds quirk
HID: support for logitech cordless desktop LX500 special mapping
HID: fix autocentering of PID devices
HID: separate quirks for report descriptor fixup
HID: Add NOGET quirk for all NCR devices
HID: support for Petalynx Maxter remote control
HID: fix mismatch between hid-input HUT find/search mapping and the HUT
HID: support for Gameron dual psx adaptor
USB HID: avoid flush_scheduled_work()
HID: Use menuconfig objects
HID: force hid-input for Microsoft SideWinder GameVoice device
HID: input mapping for Chicony KU-0418 tactical pad
HID: make debugging output runtime-configurable
* 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6: (75 commits)
Ethernet driver for EISA only SNI RM200/RM400 machines
Extract chip specific code out of lasi_82596.c
ehea: Whitespace cleanup
pasemi_mac: Fix TX interrupt threshold
spidernet: Replace literal with const
r8169: perform RX config change after mac filtering
r8169: mac address change support
r8169: display some extra debug information during startup
r8169: add endianess annotations to [RT]xDesc
r8169: align the IP header when there is no DMA constraint
r8169: add bit description for the TxPoll register
r8169: cleanup
r8169: remove the media option
r8169: small 8101 comment
r8169: confusion between hardware and IP header alignment
r8169: merge with version 8.001.00 of Realtek's r8168 driver
r8169: merge with version 6.001.00 of Realtek's r8169 driver
r8169: prettify mac_version
r8169: populate the hw_start handler for the 8110
r8169: populate the hw_start handler for the 8168
...
The CPU must not touch the buffer after it was DMA-mapped.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
The CPU must not touch the buffer after it was DMA-mapped.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
- The CPU must not touch the buffer after it was DMA-mapped.
- The size argument of dma_unmap_single(...page_table...) was bogus.
- Move a comment closer to the code to which it refers to.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Add rudimentary check for the case that the page table overflows due to
merging of s/g elements by the IOMMU. This would have lead to
overwriting of arbitrary memory.
After this change I expect that an offending command will be
unsuccessfully retried until the scsi_device is taken offline by SCSI
core. It's a border case and not worth to implement a recovery
strategy.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Acked-by: Kristian Høgsberg <krh@redhat.com>
Replace a cast with a container_of(). As long as nobody reorders the
structure elements, they do the same thing, but container_of() is more
readable.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (added complete_command_orb)
Acked-by: Kristian Høgsberg <krh@redhat.com>
The isochronous packet format is still not documented, but this
is a good first step.
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> (format, wording)
This affects of course only the "soft shutdown" case, e.g. "modprobe -r
firewire-sbp2", while it doesn't matter for hot unplug.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
This currently only affects one bridge in the hardwired blacklist.
I don't own one of those, hence haven't tested it.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
cleanup after "firewire: support S100B...S400B and link slower than PHY"
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Use a speed probe to determine the speed over 1394b buses and of nodes
which report a link speed less than their PHY speed.
Log the effective maximum speed of newly created nodes in dmesg.
Also, read the config ROM (except bus info block) at the maximum speed
rather than S100. This isn't a real optimization though because we
still only use quadlet read requests for the entire ROM.
The patch also adds support for S1600 and S3200, although such hardware
does not exist yet.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
Table-based gap count optimization cannot be used if 1394b repeater PHYs
are present. But it does work with 1394b leaf nodes.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Høgsberg <krh@redhat.com>
cleanup after support of single-buffer requests was dropped
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Kristian Hoegsberg <krh@redhat.com>
Based on patch "the scheduled removal of RAW1394_REQ_ISO_{SEND,LISTEN}"
from Adrian Bunk, November 20 2006.
This patch also removes the underlying facilities in ohci1394 and
disables them in pcilynx. That is, hpsb_host_driver.devctl() and
hpsb_host_driver.transmit_packet() are no longer used for iso reception
and transmission.
Since video1394 and dv1394 only work with ohci1394 and raw1394's rawiso
interface has never been implemented in pcilynx, pcilynx is now no
longer useful for isochronous applications.
raw1394 will still handle the request types but will complete the
requests with errors that indicate API version conflicts.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
This is upwards compatible, except that integer values other than 0 or 1
are no longer accepted. But values like "Y", "N", "no", "nnoooh!" work
now.
Also, improve a comment on the serialize_io parameter and make the
ORB_SET_EXCLUSIVE macro ultra-safe.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Association of a host device with a node on NUMA machines optimizes
allocations of skbs given from the networking stack to eth1394.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
After ieee1394 was converted away from class_device like the networking
subsystem was already in 2.6.21, eth1394's device may point to the
fw-host device as its parent again like in 2.6.20.
This affects userspace tools which examine the sysfs representation of
eth1394's device.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Remove the global nodemgr_serialize mutex which enclosed most of the
host thread event loop. This allows for parallelism between several
host adapter cards.
Properly serialize the driver hooks .update(), .suspend(), .resume(),
and .remove() by means of device->sem. These hooks can be called from
outside the host threads' contexts.
Get() and put() the device.driver when calling its hooks.
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
