Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

When using an uncached DMA region less than 1 MiB, we try to mask off
the whole last 1 MiB for it.  Unfortunately, this fails as we forgot
to subtract one from the calculated mask, leading to the region still
be marked as cacheable.
Reported-by: NAndrew Rook <andrew.rook@speakerbus.co.uk>
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Since linux-2.6.31, the kernel suspend framework will do disable_irq/enable_irq,
so save/restore irq in standby and suspend to mem callback should be dropped.
Otherwise the common code notices things are enabled and complains.
Signed-off-by: NSteven Miao <realmz6@gmail.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Add more Analog Devices driver entries and refine the differences between
Blackfin-specific code and processor independent drivers.
Signed-off-by: NMichael Hennerich <michael.hennerich@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Any consumer of dpmc.h expects to use VR_CTL, so also pull in the new
mach/pll.h header for those functions.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Currently, sending an interprocessor interrupt (IPI) requires building up
a message dynamically which means memory allocation.  But often times, we
will want to send an IPI in low level contexts where allocation is not
possible which may lead to a panic().  So create a per-cpu static array
for the message queue and use that instead.

Further, while we have two supplemental interrupts, we are currently only
using one of them.  So use the second one for the most common IPI message
of all -- smp_send_reschedule().  This avoids ugly contention for locks
which in turn would require an IPI message ...

In general, this improves SMP performance, and in some cases allows the
SMP port to work in places it wouldn't before.  Such as the PREEMPT_RT
state where the slab is protected by a per-cpu spin lock.  If the slab
kmalloc/kfree were to put the task to sleep, and that task was actually
the IPI handler, then the system falls down yet again.

After running some various stress tests on the system, the static limit
of 5 messages seems to work.  On the off chance even this overflows, we
simply panic(), and we can review that scenario to see if the limit needs
to be increased a bit more.
Signed-off-by: NYi Li <yi.li@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Since we're breaking apart some inter-header dependencies to avoid more
circular loops, move the blackfin_core_id() definition to the func that
it is based upon.
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The SMP code needs "asmlinkage" which linkage.h provides.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Common code expects these to be defined for SMP ports, so add them.
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The BF561 mem_map.h header has the __ASSEMBLY__/CONFIG_SMP checks out
of order which leads to build errors for assembly code that happens to
include this file.
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

This function takes an irq_handler_t function, but the prototype in
the header doesn't match the function definition.  This is due to the
smp headers needing to avoid circular dependencies.  So change the
function to take a simple pointer.
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The common asm-generic non-atomic bitops.h defines test_bit() for us, but
we need to use our own version.  So redirect the definition of this func
to avoid having to inline the rest of the asm-generic file.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The cpu maps are defines provided by common linux/cpumask.h, not local
variables.  So stop exporting them locally and include the right header
for their definition.
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The external functions are named __raw_xxx, not arch_xxx, so rename the
prototypes to match reality.  This fixes some simple build errors in the
bfin_ksyms.c code which exports these helpers to modules.
Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Rather than maintain Kconfig entries where people have to enter raw
numbers and hardcode lists of addresses/pins in the driver itself,
push it all to platform resources.  This lets us simplify the driver,
the Kconfig, and gives board porters greater flexibility.

In the process, we need to also start supporting the early platform
interface.  Not a big deal, but it causes the patch to be bigger than
a simple resource relocation.

All the Blackfin boards already have their resources updated and in
place for this change.
Signed-off-by: NSonic Zhang <sonic.zhang@analog.com>
Acked-by: NGreg Kroah-Hartman <gregkh@suse.de>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Looks like I missed a few new spots when renaming the SICA macros.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

These were only included because of the irq handling of the PLL funcs,
and those PLL funcs have been moved out into their own header now.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The defBF512.h header exists only to include defBF51x_base.h, and it is
the only place where defBF51x_base.h is included.  So move the contents
of the defBF51x_base.h header into the defBF512.h header.

Same situation for the other def/cdef pairs.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The main asm/blackfin.h header will pull in mach/blackfin.h to get
all the fun Blackfin defines.  So having any of the sub-mach headers
trying to include asm/blackfin.h makes no sense -- punt it.

The mach/blackfin.h header takes care of including the part-specific
def headers which in turn will include any other needed def file.
Similarly, it takes care of pulling in the part-specific cdef header.
So move this logic out of the blackfin.h when necessary.

Further, make sure the cdef headers do not waste time including the
def headers again.

Since all parts need the common def/cdef headers, move this logic
out of the part-specific headers and into the mach/blackfin.h file.

Finally, we need to split the BF539 def header since the BF538 does
not have MXVR and we don't want to expose those MMRs.

So now all parts should have the same behavior:
	mach/blackfin.h
		asm/def_LPBlackfin.h
		part-specific def.h
		if ! asm
			asm/cdef_LPBlackfin.h
			part-specific cdef.h
And the sub def/cdef headers only tail into what they need.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

We don't want the BF533 to be different in terms of its MMR headers, so
merge the FIO_FLAG helpers back into the normal place.  To avoid circular
dependencies with headers, turn the inline C funcs into CPP defines.  Not
like there will be any code size differences.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Since the SMP code paths tend to compile fail a lot, start a SMP defconfig
so our nightly build tools will automatically test it.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

We don't want people banging on MMRs directly.  As for the ip0x board,
it shouldn't need to muck with the CS pin directly as the Blackfin SPI
bus master driver takes care of driving this.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Signed-off-by: NMike Frysinger <vapier@gentoo.org>

The array of pointers is never written, so constify it.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Use the same naming convention for DMA traffic MMRs (most were legacy
anyways) so we can avoid useless ifdef trees.

Same goes for MDMA names -- this actually allows us to undo a bunch of
ifdef redirects that existed for this purpose alone.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

A bunch of arches define reads[bwl]/writes[bwl] helpers for accessing
memory mapped registers.  Since the Blackfin ones aren't specific to
Blackfin code, move them to the common asm-generic/io.h for people.
Acked-by: NArnd Bergmann <arnd@arndb.de>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Now that the common header is sane, we can drop the transitional cruft.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Each Blackfin port has been duplicating UART structures and defines when
there really is no need for it.  So start a new bfin_serial.h header to
unify all these pieces and give ourselves a fresh start.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

We're in the process of cleaning up the global Blackfin namespace, so the
bfin_sir driver needs to pull in the serial header explicitly now.

This does add a little transitional cruft to keep things compiling, but a
follow up patch in this series will cull that.
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

In order to not touch the driver file for different xtal usage,
push the clkin value to board file and calculate the register
value instead of hardcoding it.
Signed-off-by: NBob Liu <lliubbo@gmail.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

Signed-off-by: NGraf Yang <graf.yang@analog.com>
Signed-off-by: NMike Frysinger <vapier@gentoo.org>

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/hch/hfsplus:
  hfsplus: %L-to-%ll, macro correction, and remove unneeded braces
  hfsplus: spaces/indentation clean-up
  hfsplus: C99 comments clean-up
  hfsplus: over 80 character lines clean-up
  hfsplus: fix an artifact in ioctl flag checking
  hfsplus: flush disk caches in sync and fsync
  hfsplus: optimize fsync
  hfsplus: split up inode flags
  hfsplus: write up fsync for directories
  hfsplus: simplify fsync
  hfsplus: avoid useless work in hfsplus_sync_fs
  hfsplus: make sure sync writes out all metadata
  hfsplus: use raw bio access for partition tables
  hfsplus: use raw bio access for the volume headers
  hfsplus: always use hfsplus_sync_fs to write the volume header
  hfsplus: silence a few debug printks
  hfsplus: fix option parsing during remount

Fix up conflicts due to VFS changes in fs/hfsplus/{hfsplus_fs.h,unicode.c}

* 'next-spi' of git://git.secretlab.ca/git/linux-2.6: (77 commits)
  spi/omap: Fix DMA API usage in OMAP MCSPI driver
  spi/imx: correct the test on platform_get_irq() return value
  spi/topcliff: Typo fix threhold to threshold
  spi/dw_spi Typo change diable to disable.
  spi/fsl_espi: change the read behaviour of the SPIRF
  spi/mpc52xx-psc-spi: move probe/remove to proper sections
  spi/dw_spi: add DMA support
  spi/dw_spi: change to EXPORT_SYMBOL_GPL for exported APIs
  spi/dw_spi: Fix too short timeout in spi polling loop
  spi/pl022: convert running variable
  spi/pl022: convert busy flag to a bool
  spi/pl022: pass the returned sglen to the DMA engine
  spi/pl022: map the buffers on the DMA engine
  spi/topcliff_pch: Fix data transfer issue
  spi/imx: remove autodetection
  spi/pxa2xx: pass of_node to spi device and set a parent device
  spi/pxa2xx: Modify RX-Tresh instead of busy-loop for the remaining RX bytes.
  spi/pxa2xx: Add chipselect support for Sodaville
  spi/pxa2xx: Consider CE4100's FIFO depth
  spi/pxa2xx: Add CE4100 support
  ...

* 'for-2.6.38' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu: (30 commits)
  gameport: use this_cpu_read instead of lookup
  x86: udelay: Use this_cpu_read to avoid address calculation
  x86: Use this_cpu_inc_return for nmi counter
  x86: Replace uses of current_cpu_data with this_cpu ops
  x86: Use this_cpu_ops to optimize code
  vmstat: User per cpu atomics to avoid interrupt disable / enable
  irq_work: Use per cpu atomics instead of regular atomics
  cpuops: Use cmpxchg for xchg to avoid lock semantics
  x86: this_cpu_cmpxchg and this_cpu_xchg operations
  percpu: Generic this_cpu_cmpxchg() and this_cpu_xchg support
  percpu,x86: relocate this_cpu_add_return() and friends
  connector: Use this_cpu operations
  xen: Use this_cpu_inc_return
  taskstats: Use this_cpu_ops
  random: Use this_cpu_inc_return
  fs: Use this_cpu_inc_return in buffer.c
  highmem: Use this_cpu_xx_return() operations
  vmstat: Use this_cpu_inc_return for vm statistics
  x86: Support for this_cpu_add, sub, dec, inc_return
  percpu: Generic support for this_cpu_add, sub, dec, inc_return
  ...

Fixed up conflicts: in arch/x86/kernel/{apic/nmi.c, apic/x2apic_uv_x.c, process.c}
as per Tejun.