提交 · 97a70b14395be0ca61b9fa56f8ff5f6313c26423 · xiphi1978 / linux

12 12月, 2012 5 次提交

MN10300: ttySM: clean up unnecessary casting · 97a70b14

由 Mark Salter 提交于 12月 12, 2012

The ttySM uart data register pointers are declared as void* pointers. Change
them to u8* pointers so we don't need to use casts in the code.
Signed-off-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NDavid Howells <dhowells@redhat.com>

97a70b14

MN10300: fix SMP synchronization between txdma and serial driver · 8f0bcbca

由 Mark Salter 提交于 12月 12, 2012

The SoC serial port driver uses a high priority interrupt to handle tx of
characters in the tx ring buffer. The driver needs to disable/enable this IRQ
from outside of irq context. The original code to do this is not foolproof on
SMP machines because the IRQ running on one core could still access the serial
port for a short time after the driver running on another core disables the
interrupt. This patch adds a flag to tell the IRQ handler that the driver
wants to disable the interrupt. After seeing the flag, the IRQ handler will
immediately disable the interrupt and exit. After setting the flag, the driver
will wait for interrupt to be disabled by the IRQ handler.
Signed-off-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NDavid Howells <dhowells@redhat.com>

8f0bcbca

MN10300: fix serial port vdma irq setup for SMP · 8d160027

由 Mark Salter 提交于 12月 12, 2012

The builtin SoC serial ports have no FIFOs and use a virtual DMA mechanism
based on high priority IRQs to avoid overruns. These high priority interrupts
are pinned to cpu#0 on SMP systems. This patch fixes a problem with SMP where
the set_intr_level() interface is used to set the priority for these IRQs. The
set_intr_level() function sets priority on the local cpu but on SMP systems,
this code may be run on some other cpu than the one handling the interrupts.
Instead of setting interrupt level explicitly, this patch uses a special
irq_chip for these interrupts so that the mask/unmask methods can set the
interrupt level implicitly.
Signed-off-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NDavid Howells <dhowells@redhat.com>

8d160027

MN10300: cleanup IRQ affinity setting · 7d361cb7

由 Mark Salter 提交于 12月 12, 2012

The irq_set_affinity handler for the mn10300 cpu pic had some hard-coded IRQs
which were not to be migrated from one cpu to another. This patch cleans those
up by using a combination of IRQF_NOBALANCING and specialized irq chips with
no irq_set_affinity handler. This maintains the previous behavior by using
generic IRQ interfaces rather than hard coding IRQ numbers in the default
irq_set_affinity handler.
Signed-off-by: NMark Salter <msalter@redhat.com>
Signed-off-by: NDavid Howells <dhowells@redhat.com>

7d361cb7

MN10300: ttySM: Use memory barriers correctly in circular buffer logic · c98c406e

由 David Howells 提交于 12月 12, 2012

Use memory barriers correctly in the circular buffer logic used in the driver,
as documented in Documentation/circular-buffers.txt.
Signed-off-by: NDavid Howells <dhowells@redhat.com>
Signed-off-by: NMark Salter <msalter@redhat.com>

c98c406e

29 11月, 2012 35 次提交
- A
  do_coredump(): get rid of pt_regs argument · 541880d9
  由 Al Viro 提交于 11月 05, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  541880d9
- A
  print_fatal_signal(): get rid of pt_regs argument · 4aaefee5
  由 Al Viro 提交于 11月 05, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  4aaefee5
- A
  ptrace_signal(): get rid of unused arguments · 94eb22d5
  由 Al Viro 提交于 11月 05, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  94eb22d5
- A
  get rid of ptrace_signal_deliver() arguments · b7f9591c
  由 Al Viro 提交于 11月 05, 2012
```
the first one is equal to signal_pt_regs(), the second is never used
(and always NULL, while we are at it).
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  b7f9591c
- A
  new helper: signal_pt_regs() · 22062a96
  由 Al Viro 提交于 11月 05, 2012
```
Always equal to task_pt_regs(current); defined only when we are in
signal delivery.  It may be different from current_pt_regs() - e.g.
architectures like m68k may have pt_regs location on exception
different from that on a syscall and signals (just as ptrace handling)
may happen on exceptions as well as on syscalls.

When they are equal, it's often better to have signal_pt_regs
defined (in asm/ptrace.h) as current_pt_regs - that tends to be
optimized better than default would be.  However, optimisation is
the only reason why we might want an arch-specific definition;
if current_pt_regs() and task_pt_regs(current) have different
values, the latter one is right.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  22062a96
- A
  unify default ptrace_signal_deliver · 4f4202fe
  由 Al Viro 提交于 11月 05, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  4f4202fe
- A
  flagday: kill pt_regs argument of do_fork() · e80d6661
  由 Al Viro 提交于 10月 22, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  e80d6661
- A
  death to idle_regs() · 18c26c27
  由 Al Viro 提交于 10月 22, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  18c26c27
- A
  don't pass regs to copy_process() · 62e791c1
  由 Al Viro 提交于 10月 22, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  62e791c1
- A
  flagday: don't pass regs to copy_thread() · afa86fc4
  由 Al Viro 提交于 10月 22, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  afa86fc4
- A
  bfin: switch to generic vfork, get rid of pointless wrappers · 135c37b8
  由 Al Viro 提交于 11月 13, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  135c37b8
- A
  xtensa: switch to generic clone() · 3e41f9ba
  由 Al Viro 提交于 10月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  3e41f9ba
- A
  openrisc: switch to use of generic fork and clone · 39d91a9e
  由 Al Viro 提交于 10月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  39d91a9e
- A
  unicore32: switch to generic clone(2) · cb562173
  由 Al Viro 提交于 10月 22, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  cb562173
- A
  score: switch to generic fork/vfork/clone · eda96977
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  eda96977
- A
  c6x: sanitize copy_thread(), get rid of clone(2) wrapper, switch to generic clone() · 951b3961
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  951b3961
- A
  take sys_fork/sys_vfork/sys_clone prototypes to linux/syscalls.h · 24465a40
  由 Al Viro 提交于 11月 28, 2012
```
now it can be done...
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  24465a40
- A
  mn10300: switch to generic fork/vfork/clone · 1ea2a016
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  1ea2a016
- A
  h8300: switch to generic fork/vfork/clone · 3416e809
  由 Al Viro 提交于 10月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  3416e809
- A
  tile: switch to generic clone() · e9eac304
  由 Al Viro 提交于 10月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  e9eac304
- A
  m68k: sanitize copy_thread(), fork/vfork/clone wrappers, switch to generic fork/vfork · 20ecc91c
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  20ecc91c
- A
  alpha: switch to generic fork/vfork/clone · dfe09ae0
  由 Al Viro 提交于 10月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  dfe09ae0
- A
  s390: switch to generic fork/vfork/clone · 87f1ca8f
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  87f1ca8f
- A
  microblaze: switch to generic fork/vfork/clone · f3268edb
  由 Al Viro 提交于 10月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
Signed-off-by: NMichal Simek <michal.simek@xilinx.com>
```
  f3268edb
- A
  hexagon: switch to generic clone() · f01aceac
  由 Al Viro 提交于 10月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  f01aceac
- A
  sh: switch to generic fork/vfork/clone · 0ad9513d
  由 Al Viro 提交于 10月 27, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  0ad9513d
- A
  parisc: switch to generic fork/vfork/clone · 415bfae9
  由 Al Viro 提交于 10月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  415bfae9
- A
  m32r: switch to generic fork/vfork/clone · 92bbe6cd
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  92bbe6cd
- A
  cris: switch to generic fork/vfork/clone · 27d892fb
  由 Al Viro 提交于 10月 26, 2012
```
same braindamage as on s390 - the first two arguments of clone(2) in the
wrong order.
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  27d892fb
- A
  avr32: sanitize copy_thread(), switch to generic fork/vfork/clone, kill wrappers · 584271bc
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  584271bc
- A
  arm64: sanitize copy_thread(), switch to generic fork/vfork/clone · 9ac08002
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  9ac08002
- A
  frv: switch to generic fork/vfork/clone · b9763ce3
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  b9763ce3
- A
  powerpc: switch to generic fork/clone/vfork · 0bcfe540
  由 Al Viro 提交于 10月 26, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  0bcfe540
- A
  arm: switch to generic fork/vfork/clone · 38a61b6b
  由 Al Viro 提交于 10月 21, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  38a61b6b
- A
  x86, um: switch to generic fork/vfork/clone · 1d4b4b29
  由 Al Viro 提交于 10月 22, 2012
```
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>
```
  1d4b4b29