Commit Graph

365 Commits

Author SHA1 Message Date
Linus Torvalds 51e8703bdf Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
* 'next' of git://git.monstr.eu/linux-2.6-microblaze: (33 commits)
  microblaze: Do not copy reset vectors/manual reset vector setup
  microblaze: Fix _reset function
  microblaze: Fix microblaze init vectors
  microblaze: Fix circular headers dependency when ftrace is enabled.
  microblaze: Fix typo in Kconfig
  microblaze: Add missing export symbols for lib functions
  microblaze: Fix /dev/zero corruption from __clear_user()
  microblaze: Convert irq_chip to new functions
  microblaze: Select GENERIC_HARDIRQS_NO_DEPRECATED
  microblaze: Remove stale irq_chip.end
  microblaze: Fix sparse warnings - signal.c
  microblaze: Fix sparse warning - fault.c
  microblaze: Fix missing microblaze specific syscalls declaration
  microblaze: Fix sparse warnings - cache.c
  microblaze: Fix sparse warning - cpuinfo.h
  microblaze: Fix sparse warning - unwind.c
  microblaze: Fix sparse warning - consistent_alloc function
  microblaze: Fix sparse warnings - ptrace
  microblaze: Fix sparse warning - sw_exceptions
  microblaze: Fix sparse warning - timer.c
  ...
2011-03-16 10:48:16 -07:00
Linus Torvalds d10902812c Merge branch 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-platform-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (27 commits)
  x86: Clean up apic.c and apic.h
  x86: Remove superflous goal definition of tsc_sync
  x86: dt: Correct local apic documentation in device tree bindings
  x86: dt: Cleanup local apic setup
  x86: dt: Fix OLPC=y/INTEL_CE=n build
  rtc: cmos: Add OF bindings
  x86: ce4100: Use OF to setup devices
  x86: ioapic: Add OF bindings for IO_APIC
  x86: dtb: Add generic bus probe
  x86: dtb: Add support for PCI devices backed by dtb nodes
  x86: dtb: Add device tree support for HPET
  x86: dtb: Add early parsing of IO_APIC
  x86: dtb: Add irq domain abstraction
  x86: dtb: Add a device tree for CE4100
  x86: Add device tree support
  x86: e820: Remove conditional early mapping in parse_e820_ext
  x86: OLPC: Make OLPC=n build again
  x86: OLPC: Remove extra OLPC_OPENFIRMWARE_DT indirection
  x86: OLPC: Cleanup config maze completely
  x86: OLPC: Hide OLPC_OPENFIRMWARE config switch
  ...

Fix up conflicts in arch/x86/platform/ce4100/ce4100.c
2011-03-15 20:01:36 -07:00
Michel Lespinasse 8d7718aa08 futex: Sanitize futex ops argument types
Change futex_atomic_op_inuser and futex_atomic_cmpxchg_inatomic
prototypes to use u32 types for the futex as this is the data type the
futex core code uses all over the place.

Signed-off-by: Michel Lespinasse <walken@google.com>
Cc: Darren Hart <darren@dvhart.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: David Howells <dhowells@redhat.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <20110311025058.GD26122@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-11 12:23:31 +01:00
Michel Lespinasse 37a9d912b2 futex: Sanitize cmpxchg_futex_value_locked API
The cmpxchg_futex_value_locked API was funny in that it returned either
the original, user-exposed futex value OR an error code such as -EFAULT.
This was confusing at best, and could be a source of livelocks in places
that retry the cmpxchg_futex_value_locked after trying to fix the issue
by running fault_in_user_writeable().
    
This change makes the cmpxchg_futex_value_locked API more similar to the
get_futex_value_locked one, returning an error code and updating the
original value through a reference argument.
    
Signed-off-by: Michel Lespinasse <walken@google.com>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>  [tile]
Acked-by: Tony Luck <tony.luck@intel.com>  [ia64]
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Michal Simek <monstr@monstr.eu>  [microblaze]
Acked-by: David Howells <dhowells@redhat.com> [frv]
Cc: Darren Hart <darren@dvhart.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: "James E.J. Bottomley" <jejb@parisc-linux.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Paul Mundt <lethal@linux-sh.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
LKML-Reference: <20110311024851.GC26122@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-03-11 12:23:08 +01:00
Michal Simek caa66ce905 microblaze: Fix circular headers dependency when ftrace is enabled.
Remove compilation failure when ftrace in enabled.

Error log:
  CC      kernel/trace/power-traces.o
In file included from arch/microblaze/include/asm/irq.h:15,
                 from include/linux/irq.h:27,
                 from include/asm-generic/hardirq.h:12,
                 from arch/microblaze/include/asm/hardirq.h:15,
                 from include/linux/hardirq.h:7,
                 from include/linux/ftrace_event.h:7,
                 from include/trace/ftrace.h:19,
                 from include/trace/define_trace.h:96,
                 from include/trace/events/power.h:240,
                 from kernel/trace/power-traces.c:14:
include/linux/interrupt.h: In function '__raise_softirq_irqoff':
include/linux/interrupt.h:413: error: implicit declaration of function 'trace_softirq_raise'
In file included from include/trace/ftrace.h:554,
                 from include/trace/define_trace.h:96,
                 from include/trace/events/power.h:240,
                 from kernel/trace/power-traces.c:14:
include/trace/events/irq.h: In function 'ftrace_test_probe_irq_handler_entry':
include/trace/events/irq.h:37: error: implicit declaration of function 'check_trace_callback_type_irq_handler_entry'
include/trace/events/irq.h: In function 'ftrace_test_probe_irq_handler_exit':
include/trace/events/irq.h:67: error: implicit declaration of function 'check_trace_callback_type_irq_handler_exit'
include/trace/events/irq.h: In function 'ftrace_test_probe_softirq_entry':
include/trace/events/irq.h:112: error: implicit declaration of function 'check_trace_callback_type_softirq_entry'
include/trace/events/irq.h: In function 'ftrace_test_probe_softirq_exit':
include/trace/events/irq.h:126: error: implicit declaration of function 'check_trace_callback_type_softirq_exit'
include/trace/events/irq.h: In function 'ftrace_test_probe_softirq_raise':
include/trace/events/irq.h:140: error: implicit declaration of function 'check_trace_callback_type_softirq_raise'
make[5]: *** [kernel/trace/power-traces.o] Error 1
make[4]: *** [kernel/trace] Error 2
make[3]: *** [kernel] Error 2

Suggested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-10 10:39:51 +01:00
Steven J. Magnani 6f3946b421 microblaze: Fix /dev/zero corruption from __clear_user()
A userland read of more than PAGE_SIZE bytes from /dev/zero results in
(a) not all of the bytes returned being zero, and
(b) memory corruption due to zeroing of bytes beyond the user buffer.

This is caused by improper constraints on the assembly __clear_user function.
The constrints don't indicate to the compiler that the pointer argument is
modified. Since the function is inline, this results in double-incrementing
of the pointer when __clear_user() is invoked through a multi-page read() of
/dev/zero.

Signed-off-by: Steven J. Magnani <steve@digidescorp.com>
Acked-by: Michal Simek <monstr@monstr.eu>
CC: stable@kernel.org
2011-03-09 08:09:59 +01:00
Michal Simek 5213a9c3b6 microblaze: Fix sparse warning - fault.c
Warning log:
CHECK   arch/microblaze/mm/fault.c
arch/microblaze/mm/fault.c:51:6: warning: incorrect type in initializer (different address spaces)
arch/microblaze/mm/fault.c:51:6:    expected unknown type 2const [noderef] *__gu_addr<asn:1>
arch/microblaze/mm/fault.c:51:6:    got unsigned int *<noident>
arch/microblaze/mm/fault.c:68:6: warning: symbol 'bad_page_fault' was not declared. Should it be static?

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:59 +01:00
Michal Simek 4302e5254a microblaze: Fix missing microblaze specific syscalls declaration
Warning log:
CHECK   arch/microblaze/kernel/sys_microblaze.c
arch/microblaze/kernel/sys_microblaze.c:37:17: warning: symbol 'microblaze_vfork' was not declared. Should it be static?
arch/microblaze/kernel/sys_microblaze.c:43:17: warning: symbol 'microblaze_clone' was not declared. Should it be static?
arch/microblaze/kernel/sys_microblaze.c:50:17: warning: symbol 'microblaze_execve' was not declared. Should it be static?

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:58 +01:00
Michal Simek 8afe3839a9 microblaze: Fix sparse warning - cpuinfo.h
Warning log:
CHECK   arch/microblaze/kernel/cpu/cpuinfo-static.c
arch/microblaze/include/asm/cpuinfo.h:101:21: warning: incorrect type in argument 1 (different signedness)
arch/microblaze/include/asm/cpuinfo.h:101:21:    expected unsigned int const [usertype] *p
arch/microblaze/include/asm/cpuinfo.h:101:21:    got int *[assigned] val
...

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:58 +01:00
Michal Simek cd44da1542 microblaze: Fix sparse warning - consistent_alloc function
Warning in dma.c was caused by incorrect type in consistent_alloc function.

Warning log:
CHECK   arch/microblaze/kernel/dma.c
arch/microblaze/kernel/dma.c:53:26: warning: incorrect type in argument 1 (different base types)
arch/microblaze/kernel/dma.c:53:26:    expected int [signed] gfp
arch/microblaze/kernel/dma.c:53:26:    got restricted unsigned int [usertype] flag

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:58 +01:00
Michal Simek c1df53b33c microblaze: Fix sparse warnings - ptrace
Warning log:
CHECK   arch/microblaze/kernel/ptrace.c
arch/microblaze/kernel/ptrace.c:126:11: warning: incorrect type in initializer (different address spaces)
arch/microblaze/kernel/ptrace.c:126:11:    expected unknown type 2[noderef] *__pu_addr<asn:1>
arch/microblaze/kernel/ptrace.c:126:11:    got unsigned long *<noident>
arch/microblaze/kernel/ptrace.c:134:17: warning: symbol 'do_syscall_trace_enter' was not declared. Should it be static?
arch/microblaze/kernel/ptrace.c:157:17: warning: symbol 'do_syscall_trace_leave' was not declared. Should it be static?

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:58 +01:00
Michal Simek f699980b0d microblaze: Fix sparse warning - sw_exceptions
Function sw_exception is linked with asm code.

Warning log:
CHECK   arch/microblaze/kernel/exceptions.c
arch/microblaze/kernel/exceptions.c:53:6: warning: symbol 'sw_exception' was not declared. Should it be static?

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:58 +01:00
Michal Simek 0a2e1d23f2 microblaze: trivial: Add one empty line
Add one empty line to microblaze_ksyms.c.
Remove one empty line to cacheflush.h.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:57 +01:00
Michal Simek 702d54277a microblaze: Fix coding style - ptrace.h
Use tab instead of spaces.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:55 +01:00
Michal Simek a706729c3d microblaze: Fix GDB issue caused by cache issue
Used the same solution as SH. Changed len to PAGE_SIZE
in copy_to_user_page macro.

Implement flush_cache_page macro.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:55 +01:00
Michal Simek 6e83557c38 microblaze: Remove r0_ram pointer and PTO alignment
r0_ram pool was used for saving/restoring register
content if hw exception happen. This poll was replaced by
pt_pool_space with PT_SIZE size.
Based on this change SAVE_STATE_ARG_SPACE was removed which
caused that PTO offset is zero that's why is also removed.

r0_ram space was used as scratchpad by v850. In early
Microblaze Linux developing phase was this part of code
blindly copied.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:54 +01:00
Michal Simek 6011497751 microblaze: Fix unaligned.h for endians
Synchronized with mips unaligned.h.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-03-09 08:09:53 +01:00
Thomas Gleixner 7acdbb3f35 Merge branch 'linus' into x86/platform
Reason: Import mainline device tree changes on which further patches
        depend on or conflict.

Trivial conflict in: drivers/spi/pxa2xx_spi_pci.c

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2011-02-23 09:21:41 +01:00
Michal Simek 1f80a67da2 microblaze: Fix pte_update function
Do not disable irq in asm but use irq macros.
Systems with MSR=0 couldn't use pte_update function
because msrclr was hardcoded.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-02-07 19:12:30 +01:00
Michal Simek 12dfc73e1d microblaze: Fix IRQ flag handling for MSR=0
Patch: Fix IRQ flag handling naming
(sha1: f9ee29270c11dba7d0fe0b83ce47a4d8e8d2101)
introduced problem on system with MSR=0.

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-02-07 19:12:04 +01:00
Sebastian Andrzej Siewior 04bea68b2f of/pci: move of_irq_map_pci() into generic code
There is a tiny difference between PPC32 and PPC64. Microblaze uses the
PPC32 variant.

Signed-off-by: Sebastian Andrzej Siewior <sebastian@breakpoint.cc>
[grant.likely@secretlab.ca: Added comment to #endif, moved documentation
	block to function implementation, fixed for non ppc and microblaze
	compiles]
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
2011-02-04 11:46:50 -07:00
Michal Simek 658b368da1 microblaze: Fix asm/pgtable.h
Function ptep_test_and_clear_young have had wrong the first argument.
It is also necessary to add __HAVE macros for ptep_test_and_clear_young and
ptep_get_and_clear functions.

Error log:
In file included from linux/arch/microblaze/include/asm/pgtable.h:570,
                 from arch/microblaze/mm/pgtable.c:35:
include/asm-generic/pgtable.h:23: error: conflicting types for 'ptep_test_and_clear_young'
linux/arch/microblaze/include/asm/pgtable.h:449: error:
previous definition of 'ptep_test_and_clear_young' was here
include/asm-generic/pgtable.h:73: error: redefinition of 'ptep_get_and_clear'
linux/arch/microblaze/include/asm/pgtable.h:462: error:
previous definition of 'ptep_get_and_clear' was here

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-16 14:29:41 +01:00
Michal Simek 1947fc1d51 microblaze: Fix missing pagemap.h
Add missing linux/pagemap.h to solve compilation error.

Error log:
In file included from linux/arch/microblaze/include/asm/tlb.h:17,
                 from mm/pgtable-generic.c:9:
include/asm-generic/tlb.h: In function 'tlb_flush_mmu':
include/asm-generic/tlb.h:76: error: implicit declaration of function 'release_pages'
include/asm-generic/tlb.h: In function 'tlb_remove_page':
include/asm-generic/tlb.h:105: error: implicit declaration of function 'page_cache_release'

Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-16 14:29:21 +01:00
Linus Torvalds 0969d11e20 Merge branch 'next' of git://git.monstr.eu/linux-2.6-microblaze
* 'next' of git://git.monstr.eu/linux-2.6-microblaze:
  microblaze: remove obsolete DEBUG_BOOTMEM
  microblaze: trivial: Fix removed the part of line
  microblaze: Fix __muldi3 function for little-endian.
  microblaze: Clear i/dcache for sw breakpoints
  microblaze: Remove useless early_init_dt_check_for_initrd
  microblaze: Fix unaligned exception for little endian platform
  microblaze: Add PVR for Microblaze v8.00.b
  microblaze: Correct PVR access macros
  Revert "microblaze: Simplify syscall rutine"
  microblaze: Fix initramfs
  arch/microblaze: Remove unnecessary semicolons
2011-01-11 11:13:46 -08:00
roel kluin 990dbcc685 microblaze: Correct PVR access macros
A definition like:

called with PVR_IS_FULL(foo) will be preprocessed to:

(foo.foo[0] & PVR0_PVR_FULL_MASK)
     ^^^
So to fix this and ensure the preprocessor compiles calls correctly:

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Michal Simek <monstr@monstr.eu>
2011-01-03 10:01:29 +01:00