linux-toradex.git/arch/m68k/atari, branch v3.4.78

Disintegrate asm/system.h for M68K

2012-03-28T17:30:02+00:00

Disintegrate asm/system.h for M68K.

Signed-off-by: David Howells 
Acked-by: Greg Ungerer 
cc: linux-m68k@lists.linux-m68k.org

m68k: Fix assembler constraint to prevent overeager gcc optimisation

2012-01-22T13:50:20+00:00

Passing the address of a variable as an operand to an asm statement
doesn't mark the value of this variable as used, so gcc may optimize its
initialisation away.  Fix this by using the "m" constraint instead.

Signed-off-by: Andreas Schwab 
Signed-off-by: Geert Uytterhoeven 
Cc: stable@vger.kernel.org

m68k/atari: Move declaration of atari_SCC_reset_done to header file

2011-12-10T18:52:49+00:00

Signed-off-by: Geert Uytterhoeven

m68k/irq: Remove obsolete support for user vector interrupt fixups

2011-11-08T21:35:52+00:00

It was used on Apollo only, before its conversion to genirq.

Signed-off-by: Geert Uytterhoeven

m68k/atari: Remove code and comments about different irq types

2011-11-08T21:35:49+00:00

This code was obsoleted during the irq restructuring in 2006.

Signed-off-by: Geert Uytterhoeven

m68k/irq: Add m68k_setup_irq_controller()

2011-11-08T21:35:48+00:00

This is a wrapper around m68k_setup_irq_chip() that discards its dummy
second parameter, to ease the future transition to genirq.

Signed-off-by: Geert Uytterhoeven

m68k/irq: Switch irq_chip methods to "struct irq_data *data"

2011-11-08T21:35:47+00:00

Signed-off-by: Geert Uytterhoeven 
Acked-by: Thomas Gleixner

m68k/irq: Rename irq_controller to irq_chip

2011-11-08T21:35:47+00:00

Make it more similar to the genirq version:
  - Remove lock (unused as we don't do SMP anyway),
  - Prepend methods with irq_,
  - Make irq_startup() return unsigned int.

Signed-off-by: Geert Uytterhoeven 
Acked-by: Thomas Gleixner

m68k: Add export.h to the m68k specific files as required

2011-10-31T23:30:59+00:00

Signed-off-by: Paul Gortmaker

m68k/atari: Reserve some ST-RAM early on for device buffer use

2011-07-30T19:21:39+00:00

Based on an original patch from Michael Schmitz:

Because mem_init() is now called before device init, devices that rely on
ST-RAM may find all ST-RAM already allocated to other users by the time
device init happens. In particular, a large initrd RAM disk may use up
enough of ST-RAM to cause atari_stram_alloc() to resort to
__get_dma_pages() allocation.

In the current state of Atari memory management, all of RAM is marked
DMA capable, so __get_dma_pages() may well return RAM that is not in actual
fact DMA capable. Using this for frame buffer or SCSI DMA buffer causes
subtle failure.

The ST-RAM allocator has been changed to allocate memory from a pool of
reserved ST-RAM of configurable size, set aside on ST-RAM init (i.e.
before mem_init()). As long as this pool is not exhausted, allocation of
real ST-RAM can be guaranteed.

Other changes:
  - Replace the custom allocator in the ST-RAM pool by the existing allocator
    in the resource subsystem,
  - Remove mem_init_done and its hook, as memory init is now done before
    device init,
  - Remove /proc/stram, as ST-RAM usage now shows up under /proc/iomem, e.g.

	005f2000-006f1fff : ST-RAM Pool
	  005f2000-0063dfff : atafb
	  0063e000-00641fff : ataflop
	  00642000-00642fff : SCSI

Signed-off-by: Michael Schmitz 
[Andreas Schwab : Use memparse()]
[Geert: Use the resource subsystem instead of a custom allocator]
Signed-off-by: Geert Uytterhoeven