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* sh: Fix memcpy() build error on sh4eb.Nobuhiro Iwamatsu2006-09-27
| | | | | | | A trivial bug breaking the build on sh4eb. Signed-off-by: Nobuhiro Iwamatsu <hemamu@t-base.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Kill off the rest of the legacy rtc mess.Paul Mundt2006-09-27
| | | | | | | With the new RTC class driver, we can get rid of most of the old left over cruft. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: SHMIN board support.Takashi YOSHII2006-09-27
| | | | | | | This adds support for the SHMIN SH7706 board. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add support for SH7706/SH7710/SH7343 CPUs.Paul Mundt2006-09-27
| | | | | | | This adds support for the aforementioned CPU subtypes, and cleans up some build issues encountered as a result. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add setup code for various CPU subtypes.Paul Mundt2006-09-27
| | | | | | | This adds some simple setup code for most of the CPU subtypes, primarily simple platform device registration. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: sem2mutex conversion for clock framework.Paul Mundt2006-09-27
| | | | | | Simple sem2mutex conversion. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: pselect6 and ppoll, along with signal trampoline rework.Paul Mundt2006-09-27
| | | | | | This implements support for ppoll() and pselect6().. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: __addr_ok() and other misc nommu fixups.Yoshinori Sato2006-09-27
| | | | | | | A few more outstanding nommu fixups.. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: __NR_restart_syscall support.Paul Mundt2006-09-27
| | | | | | This implements support for __NR_restart_syscall. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Various nommu fixes.Yoshinori Sato2006-09-27
| | | | | | | | This fixes up some of the various outstanding nommu bugs on SH. Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Make PAGE_OFFSET configurable.Paul Mundt2006-09-27
| | | | | | | | nommu needs to be able to shift PAGE_OFFSET, so we switch it to a non-user-visible CONFIG_PAGE_OFFSET and use that in the few places where it matters. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Move voyagergx_reg.h to a more sensible place.Paul Mundt2006-09-27
| | | | | | | Other boards require this as well, so move it out of the rts7751r2d directory. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: math-emu supportTakashi YOSHII2006-09-27
| | | | | | | This implements initial math-emu support, aimed primarily at SH-3. Signed-off-by: Takashi YOSHII <takasi-y@ops.dti.ne.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Rename rtc_get/set_time() to avoid RTC_CLASS conflict.Paul Mundt2006-09-27
| | | | | | | We have a clash with RTC_CLASS over these names, so we change them.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fixup __strnlen_user() behaviour.Paul Mundt2006-09-27
| | | | | | | | | | Drop TIF_USERSPACE and add addr_limit to the thread_info struct. Subsequently, use that for address checking in strnlen_user() to ward off bogus -EFAULTs. Make __strnlen_user() return 0 on exception, rather than -EFAULT. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: More cosmetic cleanups and trivial fixes.Paul Mundt2006-09-27
| | | | | | Nothing exciting here, just trivial fixes.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fixup TEI IRQ requests in request_dma().Paul Mundt2006-09-27
| | | | | | If a channel is not TEI capable, don't try to request_irq().. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: G2 DMA IRQ and residue sampling.Paul Mundt2006-09-27
| | | | | | | | This fixes a long-standing FIXME for G2 DMA, where we finally wire up the IRQ handler and allow for sampling remaining bytes while in-flight. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: VoyagerGX cleanups and 8250 UART support.Paul Mundt2006-09-27
| | | | | | | | This adds the VoyagerGX UART to the RTS7751R2D setup code, and cleans up a few build issues. Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Inhibit mapping PCI apertures through page tables.Paul Mundt2006-09-27
| | | | | | | | | | Inhibit mapping through page tables in __ioremap() for PCI memory apertures on SH7751 and SH7780-style PCI controllers, translation is not possible for these areas. For other users that map a small window in P1/P2 space, ioremap() traps that already, and should never make it to __ioremap(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Consolidated SH7751/SH7780 PCI support.Paul Mundt2006-09-27
| | | | | | | | This cleans up quite a lot of the PCI mess that we currently have, and attempts to consolidate the duplication in the SH7780 and SH7751 PCI controllers. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: kgdb stub cleanups.Paul Mundt2006-09-27
| | | | | | | | Some kgdb cleanup. Move hexchars/highhex/lowhex to the header, so it can be reused by sh-sci. Also drop silly ctrl_inl/outl() overloading being done by the kgdb stub. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Use generic CONFIG_FRAME_POINTER.Paul Mundt2006-09-27
| | | | | | | We had our own version, which serves no purpose. Simply hook SH in to the generic one. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: APM/PM support.Andriy Skulysh2006-09-27
| | | | | | | | | This adds some simple PM stubs and the basic APM interfaces, primarily for use by hp6xx, where the existing userland expects it. Signed-off-by: Andriy Skulysh <askulysh@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: SE73180 updates for IRQ changes.Paul Mundt2006-09-27
| | | | | | | SE73180 can use the generic support, we just need to wire up the IRQ demuxing. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Make O= builds work again.Paul Mundt2006-09-27
| | | | | | Some of the paths were a bit broken, fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Drop incdir rule for SE7751.Paul Mundt2006-09-27
| | | | | | No longer needed.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add support for R7780RP and R7780MP boards.Paul Mundt2006-09-27
| | | | | | | This adds support for the Renesas SH7780 development boards, R7780RP and R7780MP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Store Queue API rework.Paul Mundt2006-09-27
| | | | | | | | | | | | Rewrite the store queue API for a per-cpu interface in the driver model. The old miscdevice is dropped, due to TASK_SIZE limitations, and no one was using it anyways. Carve up and allocate store queue space with a bitmap, back sq mapping objects with a slab cache, and let userspace worry about its own prefetching. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Board updates for I/O routine rework.Paul Mundt2006-09-27
| | | | | | | This updates the various boards for some of the recent I/O routine updates. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix split ptlock for user mappings in __do_page_fault().Paul Mundt2006-09-27
| | | | | | | | There was a bug that got introduced when the split ptlock changes went in where mm could be unintialized for user mappings, this fixes it up.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: ioremap() overhaul.Paul Mundt2006-09-27
| | | | | | | | | | ioremap() overhaul. Add support for transparent PMB mapping, get rid of p3_ioremap(), etc. Also drop ioremap() and iounmap() routines from the machvec, as everyone can use the generic ioremap() API instead. For PCI memory apertures and other special cases, use the pci_iomap() API, as boards are already required to get the mapping right there. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: page table alloc cleanups and page fault optimizations.Paul Mundt2006-09-27
| | | | | | | | | | | Cleanup of page table allocators, using generic folded PMD and PUD helpers. TLB flushing operations are moved to a more sensible spot. The page fault handler is also optimized slightly, we no longer waste cycles on IRQ disabling for flushing of the page from the ITLB, since we're already under CLI protection by the initial exception handler. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: export clear_user_page() for the modules that need it.Paul Mundt2006-09-27
| | | | | | Some modules seem to need this, so we export it.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: SH-4A Privileged Space Mapping Buffer (PMB) support.Paul Mundt2006-09-27
| | | | | | | Add support for 32-bit physical addressing through the SH-4A Privileged Space Mapping Buffer (PMB). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Titan board support.Jamie Lenehan2006-09-27
| | | | | | | Add support for the titan board. Signed-off-by: Jamie Lenehan <lenehan@twibble.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: BSS init bugfix and barrier in entry point.Paul Mundt2006-09-27
| | | | | | | | | | A synco is needed before we jump to start_kernel(). While we're at it, also move the sh_cpu_init() jump until after we've zeroed BSS, as this has caused some undesirable results in sh_cpu_init(). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add control register barriers.Paul Mundt2006-09-27
| | | | | | | | | | | | | | | | | | | | | | | Currently when making changes to control registers, we typically need some time for changes to take effect (8 nops, generally). However, for sh4a we simply need to do an icbi.. This is a simple patch for implementing a general purpose ctrl_barrier() which functions as a control register write barrier. There's some additional documentation in the patch itself, but it's pretty self explanatory. There were also some places where we were not doing the barrier, which didn't seem to have any adverse effects on legacy parts, but certainly did on sh4a. It's safer to have the barrier in place for legacy parts as well in these cases, though this does make flush_tlb_all() more expensive (by an order of 8 nops). We can ifdef around the flush_tlb_all() case for now if it's clear that all legacy parts won't have a problem with this. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add flag for MMU PTEA capability.Paul Mundt2006-09-27
| | | | | | Add CPU_HAS_PTEA, refactor some of the cpu flag settings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: landisk board support.kogiidena2006-09-27
| | | | | | | This adds support for the I-O DATA Landisk. Signed-off-by: kogiidena <kogiidena@eggplant.ddo.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix TCP payload csum bug in csum_partial_copy_generic().Ollie Wild2006-09-27
| | | | | | | | | | | | | | | | | There's a bug in the Hitachi SuperH csum_partial_copy_generic() implementation. If the supplied length is 1 (and several alignment conditions are met), the function immediately branches to label 4. However, the assembly at label 4 expects the length to be stored in register r2. Since this has not occurred, subsequent behavior is undefined. This can cause bad payload checksums in TCP connections. I've fixed the problem by initializing register r2 prior to the branch instruction. Signed-off-by: Ollie Wild <aaw@rincewind.tv> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix fatal oops in copy_user_page() on sh4a (SH7780).Paul Mundt2006-09-27
| | | | | | | | | | | | | | | | | We had a pretty interesting oops happening, where copy_user_page() was down()'ing p3map_sem[] with a bogus offset (particularly, an offset that hadn't been initialized with sema_init(), due to the mismatch between cpu_data->dcache.n_aliases and what was assumed based off of the old CACHE_ALIAS value). Luckily, spinlock debugging caught this for us, and so we drop the old hardcoded CACHE_ALIAS for sh4 completely and rely on the run-time probed cpu_data->dcache.alias_mask. This in turn gets the p3map_sem[] index right, and everything works again. While we're at it, also convert to 4-level page tables.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Wire up new syscalls.Paul Mundt2006-09-27
| | | | | | The syscall table has lagged behind a bit, wire up the new ones.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Support for SH7770/SH7780 CPU subtypes.Paul Mundt2006-09-27
| | | | | | Merge support for SH7770 and SH7780 SH-4A subtypes. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add SH7750S/SH7091 rules for SH7750 oprofile driver.Paul Mundt2006-09-27
| | | | | | | Update oprofile build rules for additional subtypes, particularly SH7750S/SH7091. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: earlyprintk= support and cleanups.Paul Mundt2006-09-27
| | | | | | | | | | Allow multiple early printk consoles via earlyprintk=. With this change earlyprintk is no longer enabled by default, it must be specified on the kernel command line. Optionally with ,keep to prevent unreg by tty_io. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Fix a sign extension bug in memset().Toshinobu Sugioka2006-09-27
| | | | | | | Minor sign-extension bug in SH-specific memset().. Signed-off-by: Toshinobu Sugioka <sugioka@itonet.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Refactor PRR masking to catch newer SH7760 cuts.Paul Mundt2006-09-27
| | | | | | Newer SH7760 cuts have a range of acceptable PRR values.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Optimized cache handling for SH-4/SH-4A caches.Richard Curnow2006-09-27
| | | | | | | | | This reworks some of the SH-4 cache handling code to more easily accomodate newer-style caches (particularly for the > direct-mapped case), as well as optimizing some of the old code. Signed-off-by: Richard Curnow <richard.curnow@st.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Support for SH-4A memory barriers.Paul Mundt2006-09-27
| | | | | | | SH-4A supports 'synco' as a barrier, sprinkle it around the cache ops as necessary.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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