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  1. 30 Oct, 2006 7 commits
  3. 29 Oct, 2006 4 commits
  5. 28 Oct, 2006 6 commits
  7. 27 Oct, 2006 7 commits
  9. 25 Oct, 2006 9 commits
  11. 24 Oct, 2006 7 commits
    • Al Viro's avatar
      [PATCH] uml: mconsole fixes · 3a51237d
      Al Viro authored 
      

 * when we have stop/sysrq/go, we get pt_regs of whatever executes
   mc_work_proc().  Would be better to see what we had at the time of
   interrupt that got us stop.

 * stop/stop/stop.....  will give stack overflow.  Shouldn't allow stop
   from mconsole_stop().

 * stop/stop/go leaves us inside mconsole_stop() with
	os_set_fd_block(req->originating_fd, 0);
	reactivate_fd(req->originating_fd, MCONSOLE_IRQ);
   just done by nested mconsole_stop().  Ditto.

 * once we'd seen stop, there's a period when INTR commands are executed
   out of order (as they should; we might have the things stuck badly
   enough to never reach mconsole_stop(), but still not badly enough to
   block mconsole_interrupt(); in that situation we _want_ things like
   "cad" to be executed immediately).  Once we enter monsole_stop(), all
   INTR commands will be executed in order, mixed with PROC ones.  We'd
   better let user see that such change of behaviour has happened.
   (Suggested by lennert).

 * stack footprint of monsole_interrupt() is an atrocity; AFAICS we can
   safely make struct mc_request req; static in function there.
Signed-off-by: default avatarAl Viro <viro@zeniv.linux.org.uk>
Acked-by: default avatarJeff Dike <jdike@addtoit.com>
Signed-off-by: default avatarLinus Torvalds <torvalds@osdl.org>
      3a51237d
    • Benjamin Herrenschmidt's avatar
      [POWERPC] Fix CHRP platforms with only 8259 · f4d4c354
      Benjamin Herrenschmidt authored 
      

On CHRP platforms with only a 8259 controller, we should set the
default IRQ host to the 8259 driver's one for the IRQ probing
fallbacks to work in case the IRQ tree is incorrect (like on
Pegasos for example). Without this fix, we get a bunch of WARN_ON's
during boot.
Signed-off-by: default avatarBenjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      f4d4c354
    • Scott Wood's avatar
      [POWERPC] IPIC: Fix spinlock recursion in set_irq_handler · f49196a5
      Scott Wood authored 
      

This causes ipic_set_irq_type to set the handler directly rather
than call set_irq_handler, which causes spinlock recursion because
the lock is already held when ipic_set_irq_type is called.

I'm also not convinced that ipic_set_irq_type should be changing the
handler at all.  There seem to be several controllers that don't and
several that do.  Those that do would break what appears to be a common
usage of calling set_irq_chip_and_handler followed by set_irq_type, if a
non-standard handler were to be used.  OTOH, irq_create_of_mapping()
doesn't set the handler, but only calls set_irq_type().

This patch gets things working in the spinlock-debugging-enabled case,
but I'm curious as to where the handler setting is ideally supposed to be
done.  I don't see any documentation on set_irq_type() that clarifies
what the semantics are supposed to be.
Signed-off-by: default avatarScott Wood <scottwood@freescale.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      f49196a5
    • Liu Dave-r63238's avatar
      [POWERPC] Fix the UCC rx/tx clock of QE · f84c39da
      Liu Dave-r63238 authored 
      

MPC8323EMDS board ethernet interface with RMII uses the CLK16 divisor
for the rx and tx clock, but the ucc_set_qe_mux_rxtx() function doesn't
handle the CLK16 setting of the CMXUCR3 and CMXUCR4 registers.  This
fixes it.
Signed-off-by: default avatarDave Liu <daveliu@freescale.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      f84c39da
    • Arnd Bergmann's avatar
      [POWERPC] cell: update defconfig · b910ecf6
      Arnd Bergmann authored 
      

===================================================================
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      b910ecf6
    • Arnd Bergmann's avatar
      [POWERPC] spufs: fix another off-by-one bug in spufs_mbox_read · 274cef5e
      Arnd Bergmann authored 
      

Currently, spufs_mbox_read transfers more bytes than requested on a
read.  If you ask for four bytes, you get eight.  This fixes it to
transfer the largest multiple of four bytes that is less than or equal
to the number you asked for.

Note: one nasty property of this file in spufs is that you can only
read multiples of four bytes in the first place, since there is no way
to atomically put back a few bytes into the hardware register.  Thus,
reading less than four bytes returns -EINVAL.  Asking for more than
four returns the largest possible multiple of four.
Signed-off-by: default avatarArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      274cef5e
    • Dwayne Grant Mcconnell's avatar
      [POWERPC] spufs: fix signal2 file to report signal2 · f6b301b8
      Dwayne Grant Mcconnell authored 
      

This fixes the /signal2 file to actually give signal2 data.
Signed-off-by: default avatarDwayne Grant Mcconnell <decimal@us.ibm.com>
Signed-off-by: default avatarArnd Bergmann <arnd.bergmann@de.ibm.com>
Signed-off-by: default avatarPaul Mackerras <paulus@samba.org>
      f6b301b8