Skip to content

cloud-kernel
cloud-kernel

openanolis / cloud-kernel
1 年多 前同步成功

通知 160
Star 36
Fork 7
cloud-kernel
cloud-kernel
切换分支/标签
  1. 14 2月, 2008 3 次提交
    • M
      sh: trapped io support for r2d V2 · 2d952b4b
      由 Magnus Damm 提交于 
      This patch converts the CF device on r2d boards from machvec readb/writeb
to trapped io.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      2d952b4b
    • M
      sh: trapped io support V2 · e7cc9a73
      由 Magnus Damm 提交于 
      The idea is that we want to get rid of the in/out/readb/writeb callbacks from
the machvec and replace that with simple inline read and write operations to
memory. Fast and simple for most hardware devices (think pci).

Some devices require special treatment though - like 16-bit only CF devices -
so we need to have some method to hook in callbacks.

This patch makes it possible to add a per-device trap generating filter. This
way we can get maximum performance of sane hardware - which doesn't need this
filter - and crappy hardware works but gets punished by a performance hit.

V2 changes things around a bit and replaces io access callbacks with a
simple minimum_bus_width value. In the future we can add stride as well.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      e7cc9a73
    • M
      sh: migor board support · 70f784ec
      由 Magnus Damm 提交于 
      This patch adds basic support for the Migo-R board.

Only simple stuff provided by the cpu specific sh7722 code is in place now,
like serial console port, timers and usb gadget. There is also partial support
for the smc91c111 ethernet controller - unfortunately some driver header file
also needs patching (not included here) to make the driver get IRQ sense
information from the platform data.
Signed-off-by: NMagnus Damm <damm@igel.co.jp>
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      70f784ec
  3. 09 2月, 2008 2 次提交
  5. 03 2月, 2008 3 次提交
    • A
      remove Documentation/smp.txt · 03502faa
      由 Adrian Bunk 提交于 
      After seeing the filename I'd have expected something about the
implementation of SMP in the Linux kernel - not some notes on kernel
configuration and building trivialities noone would search at this
place.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Acked-by: NAlan Cox <alan@redhat.com>
      03502faa
    • M
      Move Kconfig.instrumentation to arch/Kconfig and init/Kconfig · 125e5645
      由 Mathieu Desnoyers 提交于 
      Move the instrumentation Kconfig to

arch/Kconfig for architecture dependent options
  - oprofile
  - kprobes

and

init/Kconfig for architecture independent options
  - profiling
  - markers

Remove the "Instrumentation Support" menu. Everything moves to "General setup".
Delete the kernel/Kconfig.instrumentation file.
Signed-off-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      125e5645
    • M
      Add HAVE_OPROFILE · 42d4b839
      由 Mathieu Desnoyers 提交于 
      Linus:
On the per-architecture side, I do think it would be better to *not* have
internal architecture knowledge in a generic file, and as such a line like

        depends on X86_32 || IA64 || PPC || S390 || SPARC64 || X86_64 || AVR32

really shouldn't exist in a file like kernel/Kconfig.instrumentation.

It would be much better to do

        depends on ARCH_SUPPORTS_KPROBES

in that generic file, and then architectures that do support it would just
have a

        bool ARCH_SUPPORTS_KPROBES
                default y

in *their* architecture files. That would seem to be much more logical,
and is readable both for arch maintainers *and* for people who have no
clue - and don't care - about which architecture is supposed to support
which interface...

Changelog:

Actually, I know I gave this as the magic incantation, but now that I see
it, I realize that I should have told you to just use

        config ARCH_SUPPORTS_KPROBES
                def_bool y

instead, which is a bit denser.

We seem to use both kinds of syntax for these things, but this is really
what "def_bool" is there for...

Changelog :

- Moving to HAVE_*.
- Add AVR32 oprofile.
Signed-off-by: NMathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Haavard Skinnemoen <hskinnemoen@atmel.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Signed-off-by: NSam Ravnborg <sam@ravnborg.org>
      42d4b839
  7. 02 2月, 2008 1 次提交
  9. 28 1月, 2008 19 次提交
  11. 07 11月, 2007 2 次提交
  13. 31 10月, 2007 1 次提交
    • P
      sh: Clean up SR.RB Kconfig mess. · c81134b5
      由 Paul Mundt 提交于 
      CPU_HAS_SR_RB is selected by both CPU_SH3 and CPU_SH4, so having a
dependency and default y on those additionally doesn't make much sense.
The select also has to be special cased for CPUs that don't support
this.

This is also something that has been abused too much as a result
of being user-visible, hence the addition of the select in the first
place. So just kill the user-visibility entirely while we're at it.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      c81134b5
  15. 30 10月, 2007 1 次提交
  17. 20 10月, 2007 1 次提交
  19. 28 9月, 2007 1 次提交
    • P
      sh: Conditionalize gUSA support. · 83662461
      由 Paul Mundt 提交于 
      This conditionalizes gUSA support. gUSA is not supported on
SMP configurations, and it's not necessary there anyways due
to having other atomicity options (ie, movli.l/movco.l).

Anything implementing the LL/SC semantics (all SH-4A CPUs)
can switch to userspace atomicity implementations without
requiring gUSA. This is left default-enabled on all UP so
that glibc doesn't break.

Those that know what they are doing can disable this explicitly.
Signed-off-by: NPaul Mundt <lethal@linux-sh.org>
      83662461
  21. 27 9月, 2007 1 次提交
  23. 21 9月, 2007 5 次提交