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The nommu patches broke the path for the common bits, get it building
for the SH-3/4 case again.
Signed-off-by: Paul Mundt <[email protected]>
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A number of API changes happened underneath the 7206 patches, update
for everything that broke.
Signed-off-by: Paul Mundt <[email protected]>
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This splits out common bits from the existing exception handler for
use between SH-2/SH-2A and SH-3/4, and adds support for the SH-2/2A
exceptions.
Signed-off-by: Yoshinori Sato <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
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SH-2A has special division hardware as opposed to a full-fledged FPU,
wire up the exception handlers for this.
Signed-off-by: Yoshinori Sato <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
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This implements initial support for the SH7206 (SH-2A) and SH7619
(SH-2) MMU-less CPUs.
Signed-off-by: Yoshinori Sato <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
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Signed-off-by: Al Viro <[email protected]>
Signed-off-by: David S. Miller <[email protected]>
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The conversion from IPR-IRQ to IRQ-chip resulted in the
ipr data being allocated in a local variable in
make_ipr_irq - breaking anything using IPR interrupts.
This changes all of the callers of make_ipr_irq to
allocate a static structure containing the IPR data which
is then passed to make_ipr_irq. This removes the need for
make_ipr_irq to allocate any additional space for the IPR
information.
Signed-off-by: Jamie Lenehan <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
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This wires up sys_move_pages, sys_getcpu, and sys_epoll_pwait.
Signed-off-by: Paul Mundt <[email protected]>
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Add a vmlinux.lds.h helper macro for defining the eight-level initcall table,
teach all the architectures to use it.
This is a prerequisite for a patch which performs initcall synchronisation for
multithreaded-probing.
Cc: Greg KH <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
[ Added AVR32 as well ]
Signed-off-by: Haavard Skinnemoen <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Currently the INTC2 code contains a fixed IRQ table that it
iterates through to set the handler type, we move this in to
the CPU subtype setup code instead and allow for submitting
the table that way.
This drops the ST40 tables, as nothing has been happening
with those processors, while converting the only existing
users to use the new table directly (SH7760 and SH7780).
Signed-off-by: Paul Mundt <[email protected]>
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handle_irq_name() and set_irq_chip_and_handler() disappeared,
update for desc->name and set_irq_chip_and_handler_name() use.
Signed-off-by: Paul Mundt <[email protected]>
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With the recent change ripping out interrupt_table, explicit
padding of the table was missing, causing bad things to happen
when manually inserting handlers in to the table. This problem
particularly showed up in relation to do_fpu_state_restore()
which was inserted quite deeply in to the table and ended up
scribbling over a slab object.
Signed-off-by: Paul Mundt <[email protected]>
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This splits out some of the previous show_stack() implementation which
was mostly doing the show_trace() work without actually dumping any of
the stack contents. This now gets split in to two sections, where we
do the fetching of the stack pointer and subsequent stack dumping in
show_stack(), while moving the call trace in to show_trace().
Signed-off-by: Paul Mundt <[email protected]>
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A simple patch to enable the UBC on SH-4A.
Signed-off-by: Ryusuke Sakato <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
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Kill off interrupt_table for all of the CPU subtypes, we now
default in to stepping in to do_IRQ() for _all_ IRQ exceptions
and counting the spurious ones, rather than simply flipping on
the ones we cared about. This and enabling the IRQ by default
automatically has already uncovered a couple of bugs and IRQs
that weren't being caught, as well as some that are being
generated far too often (SCI Tx Data Empty, for example).
The general rationale is to use a marker for interrupt exceptions,
test for it in the handle_exception() path, and skip out to
do_IRQ() if it's found. Everything else follows the same behaviour
of finding the cached EXPEVT value in r2/r2_bank, we just rip out
the INTEVT read from entry.S entirely (except for in the kGDB NMI
case, which is another matter).
Note that while this changes the do_IRQ() semantics regarding r4
handling, they were fundamentally broken anyways (relying entirely
on r2_bank for the cached code). With this, we do the INTEVT read
from do_IRQ() itself (in the CONFIG_CPU_HAS_INTEVT case), or fall
back on r4 for the muxed IRQ number, which should also be closer
to what SH-2 and SH-2A want anyways.
Signed-off-by: Paul Mundt <[email protected]>
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One more initial conversion..
Signed-off-by: Paul Mundt <[email protected]>
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More struct irq_chip conversions, this time the INTC2 handlers.
Signed-off-by: Paul Mundt <[email protected]>
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Trivial fixes for build breakage introduced by IRQ handler changes.
Signed-off-by: Paul Mundt <[email protected]>
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We're not using this anywhere these days, kill it off.
Signed-off-by: Paul Mundt <[email protected]>
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At the moment we wrap GENERIC_TIME around our existing timer API.
As boards start providing their own clocksources, they're able to
select GENERIC_TIME accordingly and optimize out most of the timer
API.
Once the current timers have been reworked as proper clocksource
drivers, the rest of the place holders for the timer API can go
away and we can flip on GENERIC_TIME unconditionally.
Signed-off-by: Paul Mundt <[email protected]>
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Many files include the filename at the beginning, serveral used a wrong one.
Signed-off-by: Uwe Zeisberger <[email protected]>
Signed-off-by: Adrian Bunk <[email protected]>
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A few of these managed to sneak back in, get rid of them once
and for all.
Signed-off-by: Paul Mundt <[email protected]>
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Ignore build-time generated files.
Signed-off-by: Paul Mundt <[email protected]>
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Get all of the defconfigs building again.
Signed-off-by: Paul Mundt <[email protected]>
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This adds the new kernel_execve function on all architectures that were using
_syscall3() to implement execve.
The implementation uses code from the _syscall3 macros provided in the
unistd.h header file. I don't have cross-compilers for any of these
architectures, so the patch is untested with the exception of i386.
Most architectures can probably implement this in a nicer way in assembly or
by combining it with the sys_execve implementation itself, but this should do
it for now.
[[email protected]: m68knommu build fix]
[[email protected]: build fix]
[[email protected]: build fix]
[[email protected]: mips fix]
[[email protected]: s390 fix]
Signed-off-by: Arnd Bergmann <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Ivan Kokshaysky <[email protected]>
Cc: Russell King <[email protected]>
Cc: Ian Molton <[email protected]>
Cc: Mikael Starvik <[email protected]>
Cc: David Howells <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Cc: Hirokazu Takata <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Kyle McMartin <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Paul Mundt <[email protected]>
Cc: Kazumoto Kojima <[email protected]>
Cc: Richard Curnow <[email protected]>
Cc: William Lee Irwin III <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]>
Cc: Miles Bader <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "Luck, Tony" <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Roman Zippel <[email protected]>
Signed-off-by: Ralf Baechle <[email protected]>
Signed-off-by: Bernhard Rosenkraenzer <[email protected]>
Signed-off-by: Mark Haverkamp <[email protected]>
Signed-off-by: Adrian Bunk <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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In some places, particularly drivers and __init code, the init utsns is the
appropriate one to use. This patch replaces those with a the init_utsname
helper.
Changes: Removed several uses of init_utsname(). Hope I picked all the
right ones in net/ipv4/ipconfig.c. These are now changed to
utsname() (the per-process namespace utsname) in the previous
patch (2/7)
[[email protected]: CIFS fix]
Signed-off-by: Serge E. Hallyn <[email protected]>
Cc: Kirill Korotaev <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Herbert Poetzl <[email protected]>
Cc: Andrey Savochkin <[email protected]>
Cc: Serge Hallyn <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Replace references to system_utsname to the per-process uts namespace
where appropriate. This includes things like uname.
Changes: Per Eric Biederman's comments, use the per-process uts namespace
for ELF_PLATFORM, sunrpc, and parts of net/ipv4/ipconfig.c
[[email protected]: UML fix]
[[email protected]: cleanup]
[[email protected]: build fix]
Signed-off-by: Serge E. Hallyn <[email protected]>
Cc: Kirill Korotaev <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Herbert Poetzl <[email protected]>
Cc: Andrey Savochkin <[email protected]>
Signed-off-by: Cedric Le Goater <[email protected]>
Cc: Jeff Dike <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Move the init_nsproxy definition out of arch/ into kernel/nsproxy.c. This
avoids all arches having to be updated. Compiles and boots on s390.
Signed-off-by: Serge E. Hallyn <[email protected]>
Cc: Kirill Korotaev <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Herbert Poetzl <[email protected]>
Cc: Andrey Savochkin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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This patch adds a nsproxy structure to the task struct. Later patches will
move the fs namespace pointer into this structure, and introduce a new utsname
namespace into the nsproxy.
The vserver and openvz functionality, then, would be implemented in large part
by virtualizing/isolating more and more resources into namespaces, each
contained in the nsproxy.
[[email protected]: build fix]
Signed-off-by: Serge Hallyn <[email protected]>
Cc: Kirill Korotaev <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Herbert Poetzl <[email protected]>
Cc: Andrey Savochkin <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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cpumask: ensure that the cpu_online_map and cpu_possible_map bitmasks, and
hence all the macros in <linux/cpumask.h> that require them, are available to
modules for all supported combinations of architecture and CONFIG_SMP.
Signed-off-by: Greg Banks <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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With 2.6.18-rc4-mm2, now wall_jiffies will always be the same as jiffies.
So we can kill wall_jiffies completely.
This is just a cleanup and logically should not change any real behavior
except for one thing: RTC updating code in (old) ppc and xtensa use a
condition "jiffies - wall_jiffies == 1". This condition is never met so I
suppose it is just a bug. I just remove that condition only instead of
kill the whole "if" block.
[[email protected]: s390 build fix and cleanup]
Signed-off-by: Atsushi Nemoto <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Ivan Kokshaysky <[email protected]>
Cc: Russell King <[email protected]>
Cc: Ian Molton <[email protected]>
Cc: Mikael Starvik <[email protected]>
Cc: David Howells <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Cc: Hirokazu Takata <[email protected]>
Cc: Ralf Baechle <[email protected]>
Cc: Kyle McMartin <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Paul Mundt <[email protected]>
Cc: Kazumoto Kojima <[email protected]>
Cc: Richard Curnow <[email protected]>
Cc: William Lee Irwin III <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]>
Cc: Miles Bader <[email protected]>
Cc: Chris Zankel <[email protected]>
Cc: "Luck, Tony" <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Roman Zippel <[email protected]>
Signed-off-by: Heiko Carstens <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Pass ticks to do_timer() and update_times(), and adjust x86_64 and s390
timer interrupt handler with this change.
Currently update_times() calculates ticks by "jiffies - wall_jiffies", but
callers of do_timer() should know how many ticks to update. Passing ticks
get rid of this redundant calculation. Also there are another redundancy
pointed out by Martin Schwidefsky.
This cleanup make a barrier added by
5aee405c662ca644980c184774277fc6d0769a84 needless. So this patch removes
it.
As a bonus, this cleanup make wall_jiffies can be removed easily, since now
wall_jiffies is always synced with jiffies. (This patch does not really
remove wall_jiffies. It would be another cleanup patch)
Signed-off-by: Atsushi Nemoto <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: "Eric W. Biederman" <[email protected]>
Cc: Thomas Gleixner <[email protected]>
Cc: Ingo Molnar <[email protected]>
Cc: john stultz <[email protected]>
Cc: Andi Kleen <[email protected]>
Cc: Paul Mackerras <[email protected]>
Cc: Benjamin Herrenschmidt <[email protected]>
Cc: Richard Henderson <[email protected]>
Cc: Ivan Kokshaysky <[email protected]>
Acked-by: Russell King <[email protected]>
Cc: Ian Molton <[email protected]>
Cc: Mikael Starvik <[email protected]>
Acked-by: David Howells <[email protected]>
Cc: Yoshinori Sato <[email protected]>
Cc: Hirokazu Takata <[email protected]>
Acked-by: Ralf Baechle <[email protected]>
Cc: Kyle McMartin <[email protected]>
Cc: Heiko Carstens <[email protected]>
Cc: Martin Schwidefsky <[email protected]>
Cc: Paul Mundt <[email protected]>
Cc: Kazumoto Kojima <[email protected]>
Cc: Richard Curnow <[email protected]>
Cc: William Lee Irwin III <[email protected]>
Cc: "David S. Miller" <[email protected]>
Cc: Jeff Dike <[email protected]>
Cc: Paolo 'Blaisorblade' Giarrusso <[email protected]>
Cc: Miles Bader <[email protected]>
Cc: Chris Zankel <[email protected]>
Acked-by: "Luck, Tony" <[email protected]>
Cc: Geert Uytterhoeven <[email protected]>
Cc: Roman Zippel <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
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Set the SHM alignment at runtime, based off of probed cache desc.
Optimize get_unmapped_area() to only colour align shared mappings.
Signed-off-by: Paul Mundt <[email protected]>
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This implements initial support for the vsyscall page on SH.
At the moment we leave it configurable due to having nommu
to support from the same code base. We hook it up for the
signal trampoline return at present, with more to be added
later, once uClibc catches up.
Signed-off-by: Paul Mundt <[email protected]>
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Figure out the cache desc entry_mask at runtime, and remove
hard-coded assumption about the cacheline size.
Signed-off-by: Paul Mundt <[email protected]>
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This implements preliminary support for the L2 caches found
on newer SH-4A CPUs.
Signed-off-by: Paul Mundt <[email protected]>
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This was falling a bit behind..
Signed-off-by: Paul Mundt <[email protected]>
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Implement optimized copies of readsl()/writesl().
Signed-off-by: Paul Mundt <[email protected]>
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Add llsc to cpu_flags[] and comment cpu-features.h.
Signed-off-by: Jamie Lenehan <[email protected]>
Signed-off-by: Paul Mundt <[email protected]>
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Encode processor flags in AT_HWCAP in the ELF auxiliary vector.
Signed-off-by: Paul Mundt <[email protected]>
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This enables support for 4K stacks on SH.
Currently this depends on DEBUG_KERNEL, but likely all boards
will switch to this as the default in the future.
Signed-off-by: Paul Mundt <[email protected]>
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This adds a DEBUG_STACK_USAGE and DEBUG_STACKOVERFLOW for SH.
Signed-off-by: Paul Mundt <[email protected]>
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Some more machvec overhauling and setup code cleanup. Kill off
get_system_type() and platform_setup(), we can do these both
through the machvec. While we're add it, kill off more useless
mach.c's and drop some legacy cruft from setup.c.
Signed-off-by: Paul Mundt <[email protected]>
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The generic hardirq layer already takes care of a lot of the
appropriate locking and disabling for us, no need to duplicate
it in the handlers..
Signed-off-by: Paul Mundt <[email protected]>
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Formerly implemented by ADX, we can use this generically,
so move it over.
Signed-off-by: Paul Mundt <[email protected]>
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With the new RTC class driver, we can get rid of most of the
old left over cruft.
Signed-off-by: Paul Mundt <[email protected]>
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This adds support for the aforementioned CPU subtypes, and cleans
up some build issues encountered as a result.
Signed-off-by: Paul Mundt <[email protected]>
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This adds some simple setup code for most of the CPU subtypes,
primarily simple platform device registration.
Signed-off-by: Paul Mundt <[email protected]>
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Simple sem2mutex conversion.
Signed-off-by: Paul Mundt <[email protected]>
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This implements support for ppoll() and pselect6()..
Signed-off-by: Paul Mundt <[email protected]>
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