Commit Graph

777 Commits

Author SHA1 Message Date
Maciej W. Rozycki
09abbcffb3 [MIPS] cpu-bugs64.c: GCC 3.3 constraint workaround
Add a workaround to address warnings generated on the "n" constraint by
GCC 3.3 and below.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-19 19:33:14 +01:00
Atsushi Nemoto
6440fcfc62 [MIPS] No ide_default_io_base() if PCI IDE was not found
Revert b543858209 and add
no_pci_devices() check to avoid crash due to early calling of
pci_get_class().

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-14 19:08:43 +01:00
Thiemo Seufer
719b6f29fc BCM1480 serial build fix
Restores serial functionality for the BCM1480.

Signed-off-by: Thiemo Seufer <ths@networkno.de>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-09-11 17:21:19 -07:00
Yoichi Yuasa
4386307465 [MIPS] Ocelot: remove remaining bits
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-10 21:25:28 +01:00
Ralf Baechle
7b0fdaa6a1 [MIPS] Provide empty irq_enable_hazard definition for legacy and R1 cores.
Following a strict interpretation the empty definition of irq_enable_hazard
has always been a bug - but an intentional one because it didn't bite.
This has now changed, for uniprocessor kernels mm/slab.c:do_drain()

[...]
        on_each_cpu(do_drain, cachep, 1, 1);
        check_irq_on();
[...]

may be compiled into a mtc0 c0_status; mfc0 c0_status sequence resulting
in a back-to-back hazard.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-10 21:25:28 +01:00
Alan Cox
5a6e4e4207 [MIPS] tty: add the new ioctls and definitions.
Same as all the others, just put in the constants for the existing kernel
code and termios2 structure

Signed-off-by: Alan Cox <alan@redhat.com>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-09-10 21:25:27 +01:00
Ralf Baechle
1bfa771e61 [MIPS] Polish <asm/edac.h>.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:59 +01:00
Ralf Baechle
9975e77df5 [MIPS] Gcc 3.3 build fixes.
Work around gcc 3.3's unability to evaluate that certain expressions indeed
are constant.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:56 +01:00
Ralf Baechle
a204458acb [MIPS] unwind_stack should return a value ...
And gcc 3.4 doesn't even warn out this, grrr.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:55 +01:00
Ralf Baechle
b543858209 [MIPS] SMTC: Fix crash on bootup with idebus= command line argument.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:55 +01:00
Ralf Baechle
de4b214740 [MIPS] Fix build error if CONFIG_KALLSYMS is undefined.
CC      arch/mips/kernel/traps.o
arch/mips/kernel/traps.c: In function 'show_backtrace':
arch/mips/kernel/traps.c:110: warning: unused variable 'ra'

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:55 +01:00
Ralf Baechle
fe56b954ea [MIPS] SMTC: Move MIPS_CPU_IPI_IRQ definition into header.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:55 +01:00
Yoichi Yuasa
48d365e226 [MIPS] remove unused marvell.h
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:54 +01:00
Yoichi Yuasa
106e8028ce [MIPS] remove unused gt64240.h
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:54 +01:00
Yoichi Yuasa
e2286d7555 [MIPS] SNI: remove unused pcimt_scache.c
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:54 +01:00
Atsushi Nemoto
c87abd75b3 [MIPS] Cleanup TX39/TX49 irq code
Cleanup jmr3927, tx4927 and tx4938 irq codes, using common IRQ_CPU,
I8259 and IRQ_TXX9 irq routines.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:53 +01:00
Atsushi Nemoto
8420fd00e8 [MIPS] The irq_chip for TX39/TX49 SoCs
Add generic irq_chip for TX39/TX49 SoCs.  This can be replace
jmr3927_irq_irc, tx4927_irq_pic_type and tx4938_irq_pic_type.

Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:52 +01:00
Ralf Baechle
99e480d81c [MIPS] Compute PGD_ORDER from the select page size.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:49 +01:00
Ralf Baechle
5ff974720a [MIPS] Fix computation of {PGD,PMD,PTE}_T_LOG2.
For the generation of asm-offset.h to work these need to be evaulatable
by gcc as a constant expression.  This issue did exist for a while but
didn't bite because they're only in asm-offset.h for debugging purposes.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:48 +01:00
Ralf Baechle
4c8081e469 [MIPS] Fix computation of PGDIR_SHIFT for 16K pagesize on 32-bit kernels.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-08-27 02:16:48 +01:00
Linus Torvalds
d6dd9e93c7 Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus
* 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-linus: (50 commits)
  [MIPS] Add smp_call_function_single()
  [MIPS] thread_info.h: kmalloc + memset conversion to kzalloc
  [MIPS] Kexec: Fix several 64-bit bugs.
  [MIPS] Kexec: Fix several warnings.
  [MIPS] DDB5477: Remove support
  [MIPS] Fulong: Remove unneeded header file
  [MIPS] Cobalt: Enable UART on RaQ1
  [MIPS] Remove unused GROUP_TOSHIBA_NAMES
  [MIPS] remove some duplicate includes
  [MIPS] Oprofile: Fix rm9000 performance counter handler
  [MIPS] Use -Werror on subdirectories which build cleanly.
  [MIPS] Yosemite: Fix warning.
  [MIPS] PMON: Fix cpustart declaration.
  [MIPS] Yosemite: Only build ll_ht_smp_irq_handler() if HYPERTRANSPORT.
  [MIPS] Yosemite: Fix build error due to undeclared titan_mailbox_irq().
  [MIPS] Yosemite: Don't declare titan_mailbox_irq() as asmlinkage.
  [MIPS] Yosemite: Fix warnings in i2c-yoesmite by deleting the unused code.
  [MIPS] Delete unused arch/mips/gt64120/common/
  [MIPS] Fix build warning in unaligned load/store emulator.
  [MIPS] IP32: Don't ignore request_irq's return value.
  ...
2007-07-31 20:41:53 -07:00
Yoichi Yuasa
541510fc28 remove tx3912fb
Remove tx3912fb.  Nino has already removed.  It is no longer needed.

Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: "Antonino A. Daplas" <adaplas@pol.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:41 -07:00
Stephane Eranian
a583f1b542 remove unused TIF_NOTIFY_RESUME flag
Remove unused TIF_NOTIFY_RESUME flag for all processor architectures.  The
flag was not used excecpt on IA-64 where the patch replaces it with
TIF_PERFMON_WORK.

Signed-off-by: stephane eranian <eranian@hpl.hp.com>
Cc: <linux-arch@vger.kernel.org>
Cc: "Luck, Tony" <tony.luck@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-31 15:39:38 -07:00
Mariusz Kozlowski
185bcd17a5 [MIPS] thread_info.h: kmalloc + memset conversion to kzalloc
Signed-off-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:36 +01:00
Yoichi Yuasa
ff32b062ea [MIPS] DDB5477: Remove support
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:34 +01:00
Yoichi Yuasa
72c0fcf70a [MIPS] Remove unused GROUP_TOSHIBA_NAMES
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:34 +01:00
Ralf Baechle
e0a725a746 [MIPS] PMON: Fix cpustart declaration.
This now matches how cpustart is actually being invoked from Linux.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:32 +01:00
Ralf Baechle
0b0ef2ea00 [MIPS] Remove Momentum Ocelot support.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:29 +01:00
Ralf Baechle
98de920a2a [MIPS] Add missing declaration for mips_ihb().
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:26 +01:00
Chris Dearman
a11b18ef94 [MIPS] MTI: Add CoreFPGA4 ID.
Signed-off-by: Chris Dearman <chris@mips.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:26 +01:00
Ralf Baechle
07cc0c9e65 [MIPS] MT: Enable coexistence of AP/SP with VSMP and SMTC.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:24 +01:00
Ralf Baechle
4dc467756e [MIPS] Wire up the fallocate syscall.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:22 +01:00
Ralf Baechle
293c5bd13f [MIPS] Fixup secure computing stuff.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:21 +01:00
Atsushi Nemoto
01754bbc69 [MIPS] tx49xx: Add mach specific headers
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:21 +01:00
Atsushi Nemoto
d4414cc48b [MIPS] rbtx4927: Fix -Werror-implicit-function-declaration build error.
Signed-off-by: Atsushi Nemoto <anemo@mba.ocn.ne.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-31 21:35:21 +01:00
Doug Thompson
39c29657fc include/asm-:mips add missing edac h file
EDAC has a foundation to perform software memory scrubbing, but it requires a
per architecture (atomic_scrub) function for performing an atomic update
operation.  Under X86, this is done with a

lock:  add  [addr],0

in the file asm-x86/edac.h

This patch provides the MIPS arch with that atomic function, atomic_scrub() in

asm-mips/edac.h

Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Doug Thompson <dougthompson@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-26 11:35:18 -07:00
Ralf Baechle
eeea55163d [MIPS] Whitespace cleanup.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-24 16:02:47 +01:00
Franck Bui-Huu
941091024e [MIPS] User stack pointer randomisation
Signed-off-by: Franck Bui-Huu <fbuihuu@gmail.com>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-20 18:57:40 +01:00
Yoichi Yuasa
c55757b261 [MIPS] Remove unused include/asm-mips/gfx.h
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-20 18:57:39 +01:00
Yoichi Yuasa
ca002ba8be [MIPS] Remove unused include/asm-mips/ds1216.h
Signed-off-by: Yoichi Yuasa <yoichi_yuasa@tripeaks.co.jp>
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-20 18:57:39 +01:00
Ralf Baechle
17099b1142 [MIPS] Make support for weakly ordered LL/SC a config option.
None of weakly ordered processor supported in tree need this but it seems
like this could change ...

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-20 18:57:39 +01:00
Ralf Baechle
ed203dadcd [MIPS] Disable UserLocal runtime detection on platforms which never have it.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-20 18:57:39 +01:00
Ralf Baechle
798d9023e4 [MIPS] Disable MT runtime detection on platforms which never support MT.
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
2007-07-20 18:57:39 +01:00
Ralf Baechle
c41917df8a [PATCH] sched: sched_cacheflush is now unused
Since Ingo's recent scheduler rewrite which was merged as commit
0437e109e1 sched_cacheflush is unused.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
2007-07-19 21:28:35 +02:00
Peter Zijlstra
b111757c50 arch: personality independent stack top
New arch macro STACK_TOP_MAX it gives the larges valid stack address for the
architecture in question.

It differs from STACK_TOP in that it will not distinguish between
personalities but will always return the largest possible address.

This is used to create the initial stack on execve, which we will move down to
the proper location once the binfmt code has figured out where that is.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Signed-off-by: Ollie Wild <aaw@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-19 10:04:45 -07:00
Maciej W. Rozycki
8b4a40809e zs: move to the serial subsystem
This is a reimplementation of the zs driver for the serial subsystem.  Any
resemblance to the old driver is purely coincidential.  ;-) I do hope I got
the handling of modem lines right -- better do not tackle me about the
issue unless you feel too good...

Any users of the old driver: please note the numbers of the serial lines
have now been swapped, i.e.  ttyS0 <-> ttyS1 and ttyS2 <-> ttyS3.  It has
to do with the modem lines mentioned above; basically the port A in a given
chip has to be initialised before the port B if you want to use the latter
as the serial console (which is usually the case), as operations on modem
lines of the serial line associated with the port B access both ports (see
the comment at the top of the driver for the details of wiring used).
Please update your scripts.

This is also the reason each SCC now requests an IRQ once only (as seen in
"/proc/interrupts") -- the handler takes care of both ports at once as the
line associated with the port B has to take status update interrupts from
both ports (and yet the line of the port A takes its own for itself too).
The old driver never got it right...

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-18 08:38:22 -07:00
Antonino A. Daplas
317b3c2167 fbdev: detect primary display device
Add function helper, fb_is_primary_device().  Given struct fb_info, it will
return a nonzero value if the device is the primary display.

Currently, only the i386 is supported where the function checks for the
IORESOURCE_ROM_SHADOW flag.

Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Cc: David Miller <davem@davemloft.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:11 -07:00
Antonino A. Daplas
10eb2659cc fbdev: move arch-specific bits to their respective subdirectories
Move arch-specific bits of fb_mmap() to their respective subdirectories

[bob.picco@hp.com: efi_range_is_wc is referenced but not declared]
[bunk@stusta.de: fix include/asm-m68k/fb.h]
Signed-off-by: Antonino Daplas <adaplas@gmail.com>
Acked-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:11 -07:00
Maciej W. Rozycki
b45d527974 sb1250-duart.c: SB1250 DUART serial support
This is a driver for the SB1250 DUART, a dual serial port implementation
included in the Broadcom family of SOCs descending from the SiByte SB1250
MIPS64 chip multiprocessor.  It is a new implementation replacing the
old-fashioned driver currently present in the linux-mips.org tree.  It
supports all the usual features one would expect from a(n asynchronous)
serial driver, including modem line control (as far as hardware supports it
-- there is edge detection logic missing from the DCD and RI lines and the
driver does not implement polling of these lines at the moment), the serial
console, BREAK transmission and reception, including the magic SysRq.  The
receive FIFO threshold is not maintained though.

The driver was tested with a SWARM board which uses a BCM1250 SOC (which is
dual MIPS64 CMP) and has both ports of the single DUART implemented wired
externally.  Both were tested.  Testing included using the ports as
terminal lines at 1200bps (which is the ports minimum), 115200bps and a
couple of random speeds inbetween.  The modem lines were verified to
operate correctly.  No testing was performed with a use as a network
interface, like with SLIP or PPP.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Acked-by: Ralf Baechle <ralf@linux-mips.org>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-17 10:23:03 -07:00
Arnd Bergmann
4b7775870b Introduce compat_u64 and compat_s64 types
One common problem with 32 bit system call and ioctl emulation is the
different alignment rules between i386 and 64 bit machines.  A number of
drivers work around this by marking the compat structures as
'attribute((packed))', which is not the right solution because it breaks
all the non-x86 architectures that want to use the same compat code.

Hopefully, this patch improves the situation, it introduces two new types,
compat_u64 and compat_s64.  These are defined on all architectures to have
the same size and alignment as the 32 bit version of u64 and s64.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: David S. Miller <davem@davemloft.net>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Andi Kleen <ak@suse.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Vasily Tarasov <vtaras@openvz.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-16 09:05:48 -07:00