Presently the secondary CPU entry point is only aimed at 29bit phys mode,
causing it to point to a stray virtual address in 32bit mode. Fix it up
after consulting with our shiny new __in_29bit_mode().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

flush_cache_all() gets called in to when we do some early ioremapping.
Unfortunately on SDK7786 the interrupt controller itself requires
ioremapping, leading to a bit of a chicken and egg scenario. For now,
don't bother with IPI crosscalls if there aren't any other CPUs online.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This updates the existing boards that specify the register width through
platform data to use the resource flags instead. This eliminates platform
data completely in most cases, and permits further improvement in the
heartbeat driver as well as shrinking the overall private data size.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Hand off the user LEDs to the heartbeat driver.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This permits the resource access size to be handed off through the
resource flags, which saves platforms from having to establish
platform data only to specify the register width.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

The last commit introduced the following breakage

arch/sh/include/asm/mmu.h: In function 'pmb_remap':
arch/sh/include/asm/mmu.h:79: error: expected ';' before '}' token

and...

arch/sh/include/asm/mmu.h:78: error: 'EINVAL' undeclared (first use in this function)
arch/sh/include/asm/mmu.h:78: error: (Each undeclared identifier is reported only once
arch/sh/include/asm/mmu.h:78: error: for each function it appears in.)
arch/sh/include/asm/mmu.h: In function 'pmb_init':
arch/sh/include/asm/mmu.h:87: error: 'ENODEV' undeclared (first use in this function)
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This stubs in some preliminary board support for the RTE SDK7786.

This is quite stunted at the moment, and primarily builds on top of the
system FPGA. FPGA IRQs are handled via CPU IRL masking for simplicity,
with initial peripheral support restricted to the debug ethernet.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

These were originally named _nopmd and _pmd to follow their asm-generic
counterparts, but we rename them to -2level and -3level for general
consistency.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

All SH-X2 and SH-X3 parts support an extended TLB mode, which has been
left as experimental since support was originally merged. Now that it's
had some time to stabilize and get some exposure to various platforms,
we can drop it as an option and default enable it across the board.

This is also good future proofing for newer parts that will drop support
for the legacy TLB mode completely.

This will also force 3-level page tables for all newer parts, which is
necessary both for the varying page sizes and larger memories.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This stubs out all of the PxSEGADDR() wrappers for non-legacy code.
29-bit will continue to work with these, while 32-bit code will now blow
up on compile rather than at runtime.

The vast majority of the in-tree offenders are gone, with the only
remaining culprits being unable to support 32-bit mode.

Hopefully this will prevent anyone from ever using these again.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Valid sizes include 256kB, not 258kB.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This introduces some much overdue chainsawing of the fixed PMB support.
fixed PMB was introduced initially to work around the fact that dynamic
PMB mode was relatively broken, though they were never intended to
converge. The main areas where there are differences are whether the
system is booted in 29-bit mode or 32-bit mode, and whether legacy
mappings are to be preserved. Any system booting in true 32-bit mode will
not care about legacy mappings, so these are roughly decoupled.

Regardless of the entry point, PMB and 32BIT are directly related as far
as the kernel is concerned, so we also switch back to having one select
the other.

With legacy mappings iterated through and applied in the initialization
path it's now possible to finally merge the two implementations and
permit dynamic remapping overtop of remaining entries regardless of
whether boot mappings are crafted by hand or inherited from the boot
loader.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

The mass produced cuts use an updated PVR value, add them to the list.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This makes vmlinux.bin generation an explicit make target, as opposed to
just a dependency for some of the other targets.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Plugs in LZO along with the others.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

The legacy P2 area may not always be mapped (for example when using
PMB). So perform an icbi on an address that we know will always be
mapped.
Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This follows the x86 xstate changes and implements a task_xstate slab
cache that is dynamically sized to match one of hard FP/soft FP/FPU-less.

This also tidies up and consolidates some of the SH-2A/SH-4 FPU
fragmentation. Now fpu state restorers are commonly defined, with the
init_fpu()/fpu_init() mess reworked to follow the x86 convention.
The fpu_init() register initialization has been replaced by xstate setup
followed by writing out to hardware via the standard restore path.

As init_fpu() now performs a slab allocation a secondary lighterweight
restorer is also introduced for the context switch.

In the future the DSP state will be rolled in here, too.

More work remains for math emulation and the SH-5 FPU, which presently
uses its own special (UP-only) interfaces.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Presently this has a BUG_ON() for failure cases, as powerpc does. Switch
this over to a SLAB_PANIC instead.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Presently the thread_info allocators are special cased, depending on
THREAD_SHIFT < PAGE_SHIFT. This provides a sensible definition for them
regardless of configuration, in preparation for extended CPU state.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

start_thread() will become a bit heavier with the xstate freeing to be
added in, so move it out-of-line in preparation.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This adds some VBR sanity checks in the sh_bios code to ensure that the
BIOS VBR is in range before blindly trapping in to it. This permits
boards with varying boot loader configurations to always leave support
for sh-bios enabled and it will just be disabled at run-time if not
found.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This splits out the unaligned access counters and userspace bits in to
their own generic interface, which will allow them to be wired up on sh64
too.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Now that the sh-sci earlyprintk is taken care of by the sh-sci driver
directly, there's no longer any reason for having a split-out
early_printk framework. sh_bios is the only other thing that uses it, so
we just migrate the leftovers in to there. As it's possible to have
multiple early_param()'s for the same string, there's not much point in
having this split out anymore anyways, particularly since the sh_bios
dependencies are still special-cased within sh-sci itself.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

sh_bios_char_out() is not used by anything in-tree these days, so just
get rid of it.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This was conditionalized on CONFIG_EARLY_PRINTK, which has subsequently
gone away. Now that the serial driver always supports the early console,
make sure we always establish the mapping.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This moves the VBR handling out of the main trap handling code and in to
the sh-bios helper code. A couple of accessors are added in order to
permit other kernel code to get at the VBR value for state save/restore
paths.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

As SH has a very sparse IRQ map by default, all new CPUs and boards
benefit from using sparseirq by default. Despite this, there are still a
few stragglers (mostly due to using a fixed IRQ range for their FPGA
IRQ mappings), and these still need to be converted over one by one. As
these are now in the minority, and we do not want to encourage this sort
of brain-damage in newer board ports, we force sparseirq on.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

This gets rid of the arbitrary set of vectors used by the SE7722 FPGA
interrupt controller and switches over to a completely dynamic set.
No assumptions regarding a contiguous range are made, and the platform
resources themselves need to be filled in lazily.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

Revert commit 2fbd07a5, as this commit
breaks an IBM platform with quad-core Xeon cpu's.

According to Suresh, this might be an IBM platform issue, as on other
Intel platforms with <= 8 logical cpu's, logical flat mode works fine
irespective of physical apic id values (inline with the xapic
architecture).

Revert this for now because of the IBM platform breakage.

Another version will be re-submitted after the complete analysis.
Signed-off-by: Ananth N Mavinakayanahalli <ananth@in.ibm.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

* 'for-linus' of git://oss.sgi.com/xfs/xfs:
  xfs: Ensure we force all busy extents in range to disk
  xfs: Don't flush stale inodes
  xfs: fix timestamp handling in xfs_setattr
  xfs: use DECLARE_EVENT_CLASS

* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-2.6-fixes:
  GFS2: Use MAX_LFS_FILESIZE for meta inode size
  GFS2: Fix gfs2_xattr_acl_chmod()
  GFS2: Fix locking bug in rename
  GFS2: Ensure uptodate inode size when using O_APPEND

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs-2.6:
  quota: Fix dquot_transfer for filesystems different from ext4

* 'agp-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/agp-2.6:
  agp/hp: fail gracefully if we don't find an IOC
  agp/hp: fixup hp agp after ACPI changes
  agp: correct missing cleanup on error in agp_add_bridge

* 'drm-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (45 commits)
  drm/nv04: Fix set_operation software method.
  drm/nouveau: initialise DMA tracking parameters earlier
  drm/nouveau: use dma.max rather than pushbuf size for checking GET validity
  drm/nv04: differentiate between nv04/nv05
  drm/nouveau: Fix null deref in nouveau_fence_emit due to deleted fence
  drm/nv50: prevent a possible ctxprog hang
  drm/nouveau: have ttm's fault handler called directly
  drm/nv50: restore correct cache1 get/put address on fifoctx load
  drm/nouveau: create function for "dealing" with gpu lockup
  drm/nouveau: remove unused nouveau_channel_idle() function
  drm/nouveau: fix handling of fbcon colours in 8bpp
  drm/nv04: Context switching fixes.
  drm/nouveau: Use the software object for fencing.
  drm/nouveau: Allocate a per-channel instance of NV_SW.
  drm/nv50: make the blocksize depend on vram size
  drm/nouveau: better alignment of bo sizes and use roundup instead of ALIGN
  drm/nouveau: Don't skip card take down on nv0x.
  drm/nouveau: Implement nv42-nv43 TV load detection.
  drm/nouveau: Clean up the nv17-nv4x load detection code a bit.
  drm/nv50: fix fillrect color
  ...

* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
  hwmon: Make PCI device ids constant
  hwmon: (coretemp) Fix TjMax for Atom N450/D410/D510 CPUs
  hwmon: (k10temp) Blacklist more family 10h processors
  hwmon: (asus_atk0110) Add debugfs interface
  hwmon: (asus_atk0110) Refactor interface probe code
  hwmon: (adt7462) Fix pin 28 monitoring

The list macros use LIST_POISON1 and LIST_POISON2 as undereferencable
pointers in order to trap erronous use of freed list_heads.  Unfortunately
userspace can arrange for those pointers to actually be dereferencable,
potentially turning an oops to an expolit.

To avoid this allow architectures (currently x86_64 only) to override
the default values for these pointers with truly-undereferencable values.
This is easy on x86_64 as the virtual address space is large and contains
areas that cannot be mapped.

Other 64-bit architectures will likely find similar unmapped ranges.

[ingo: switch to 0xdead000000000000 as the unmapped area]
[ingo: add comments, cleanup]
[jaswinder: eliminate sparse warnings]
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Jaswinder Singh Rajput <jaswinderrajput@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Merge branch 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6

* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (26 commits)
  OMAP2 clock: dynamically allocate CPUFreq frequency table
  OMAP clock/CPUFreq: add clk_exit_cpufreq_table()
  OMAP2xxx OPP: clean up comments in OPP data
  OMAP2xxx clock: clk2xxx.c doesn't compile if CPUFREQ is enabled
  OMAP1 clock: remove __initdata from struct clk_functions to prevent crash
  OMAP1 clock: Add missing clocks for OMAP 7xx
  OMAP clock: remove incorrect EXPORT_SYMBOL()s
  OMAP3 clock: Add capability to change rate of dpll4_m5_ck
  OMAP3 clock: McBSP 2, 3, 4 functional clock parent is PER_96M_FCLK, not CORE_96M_FCLK
  OMAP3: clock: add clockdomains for UART1 & 2
  OMAP2420 IO mapping: move IVA mapping virtual address out of vmalloc space
  OMAP2xxx IO mapping: mark DSP mappings as being 2420-only
  ARM: OMAP3: PM: Fix the Invalid CM_CLKSTCTRL reg access.
  OMAP2: remove duplicated #include
  omap3: EVM: Choose OMAP_PACKAGE_CBB
  omap3: Fix booting if package is uninitialized
  omap3: add missing parentheses
  omap3: add missing parentheses
  omap2/3: ZOOM: Correcting key mapping for few keys
  omap2/3: make serial_in_override() address the right uart port
  ...

Update the defconfig for the ASB2303 platform.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

Access to the ASB2305's PCnet32 NIC doesn't work correctly because when
the NIC attempts to update the ring buffer flags by DMA, the change to RAM
crops up about 17uS after the interrupt line is asserted.  This is almost
certainly due to a bug in the PCI bridge FPGA on that board.

We can get around this by making dma_alloc_coherent() put the ring buffer
in the SRAM attached to the PCI bridge rather than in the SDRAM.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>