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2006-09-27sh: APM/PM support.Andriy Skulysh21-22/+1124
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>
2006-09-27sh: Free up some and document PTEL flags.Paul Mundt1-31/+45
Drop _PAGE_SHARED/_PAGE_U0_SHARED and document Linux PTE encodings in the PTEL value. Preserve the swap cache entry encoding semantics for now, though it will need rework to free up _PAGE_WT from _PAGE_FILE. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Update new-machine.txt so it's more accurate.Paul Mundt1-77/+51
This fell behind a bit, get it updated so the documentation has something in common with reality. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: SE73180 updates for IRQ changes.Paul Mundt3-1/+4
SE73180 can use the generic support, we just need to wire up the IRQ demuxing. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27video: Update header location in hp680_bl.Andriy Skulysh1-2/+2
Trivial build fix. Signed-off-by: Andriy Skulysh <askulysh@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Make O= builds work again.Paul Mundt1-7/+5
Some of the paths were a bit broken, fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: xchg()/__xchg() always_inline fixes for gcc4.Paul Mundt1-25/+32
Make __xchg() a macro, so that gcc 4.0 doesn't blow up thanks to always_inline.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Drop incdir rule for SE7751.Paul Mundt1-2/+0
No longer needed.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27video: Update pvr2fb for sq API changes.Paul Mundt1-10/+12
With the store queue API rework, we need to change the in-kernel users too. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Cleanup and document register bank usage.Paul Mundt3-3/+64
Initial register bank cleanup. Make SR.RB configurable, and add some preliminary documentation on register bank usage within the kernel. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Add support for R7780RP and R7780MP boards.Paul Mundt30-49/+2684
This adds support for the Renesas SH7780 development boards, R7780RP and R7780MP. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Store Queue API rework.Paul Mundt2-314/+251
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>
2006-09-27sh: Board updates for I/O routine rework.Paul Mundt43-671/+201
This updates the various boards for some of the recent I/O routine updates. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Fix split ptlock for user mappings in __do_page_fault().Paul Mundt1-3/+4
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>
2006-09-27sh: Fixup SHMLBA definition for SH7705.Paul Mundt5-81/+38
We need this set to something sensible anywhere were we have an aliasing dcache.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: ioremap() overhaul.Paul Mundt15-323/+374
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>
2006-09-27sh: page table alloc cleanups and page fault optimizations.Paul Mundt13-267/+261
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>
2006-09-27sh: export clear_user_page() for the modules that need it.Paul Mundt1-0/+1
Some modules seem to need this, so we export it.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: SH-4A Privileged Space Mapping Buffer (PMB) support.Paul Mundt3-2/+318
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>
2006-09-27sh: Titan board support.Jamie Lenehan10-12/+1764
Add support for the titan board. Signed-off-by: Jamie Lenehan <lenehan@twibble.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: BSS init bugfix and barrier in entry point.Paul Mundt1-5/+31
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>
2006-09-27sh: Add control register barriers.Paul Mundt4-15/+45
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>
2006-09-27sh: Add flag for MMU PTEA capability.Paul Mundt3-21/+31
Add CPU_HAS_PTEA, refactor some of the cpu flag settings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: landisk board support.kogiidena12-1/+2614
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>
2006-09-27sh: Fix libata build.Paul Mundt2-9/+9
Drop virt_to_bus() from sg_dma_address() so libata builds. While we're at it, move sg_dma_address() and sg_dma_len() from pci.h to scatterlist.h. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Fix TCP payload csum bug in csum_partial_copy_generic().Ollie Wild1-1/+2
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>
2006-09-27sh: Fix fatal oops in copy_user_page() on sh4a (SH7780).Paul Mundt2-14/+14
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>
2006-09-27sh: Wire up new syscalls.Paul Mundt2-2/+52
The syscall table has lagged behind a bit, wire up the new ones.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: remove cpu_online() definition from <asm/smp.h>Alexey Dobriyan1-5/+0
It's defined in <linux/cpumask.h> and log is horribly flooded by "redefined" messages. Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Support for SH7770/SH7780 CPU subtypes.Paul Mundt6-0/+191
Merge support for SH7770 and SH7780 SH-4A subtypes. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Add SH7750S/SH7091 rules for SH7750 oprofile driver.Paul Mundt1-0/+4
Update oprofile build rules for additional subtypes, particularly SH7750S/SH7091. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: earlyprintk= support and cleanups.Paul Mundt3-30/+100
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>
2006-09-27sh: prefetch()/prefetchw() support.Paul Mundt1-0/+13
SH-2/3/4 are able to prefetch, add support for it.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Fix a sign extension bug in memset().Toshinobu Sugioka1-0/+1
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>
2006-09-27sh: Refactor PRR masking to catch newer SH7760 cuts.Paul Mundt1-3/+9
Newer SH7760 cuts have a range of acceptable PRR values.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Optimized cache handling for SH-4/SH-4A caches.Richard Curnow5-190/+475
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>
2006-09-27sh: Support for SH-4A memory barriers.Paul Mundt2-0/+12
SH-4A supports 'synco' as a barrier, sprinkle it around the cache ops as necessary.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: RTS7751R2D board updates.Paul Mundt7-81/+68
More of the same, trivial cleanups, and moving options to their own board-specific Kconfig. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: HS7751RVoIP board updates.Paul Mundt6-68/+71
Various cleanups for HS7751RVoIP. Mostly just getting rid of the old mach.c and splitting codec configuration in to its own Kconfig. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sound: SH DAC audio driver updates.Andriy Skulysh1-7/+19
Update the SH DAC audio driver for the clock framework. Signed-off-by: Andriy Skulysh <askulysh@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27video: hitfb suspend/resume and updates.Andriy Skulysh1-33/+181
suspend/resume support for hitfb, as well as some other minor cleanups. Signed-off-by: Andriy Skulysh <askulysh@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Move hd64461.h to a more sensible location.Paul Mundt5-76/+32
With the I/O rework for hd64461 we're down to a single header, so move it by itself and get rid of the directory. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Fixup TMU_TOCR definition for SH7300.Paul Mundt1-3/+4
SH7300 has a different TMU_TOCR, make the TMU code work again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Kill off dead code for SE and SystemH boards.Paul Mundt8-58/+12
Some of these have suffered some bitrot, and so there is some degree of dead code that has been left sitting around, clean it up.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27video: Disable vgacon for SuperH.Paul Mundt1-1/+1
We don't support this on SH, so just disable it.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: hugetlb updates.Paul Mundt2-37/+16
For some of the larger sizes we permitted spanning pages across several PTEs, but this turned out to not be generally useful. This reverts the sh hugetlbpage interface to something more sensible using huge pages at single PTE granularity. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: hp6xx mach-type cleanups.Andriy Skulysh3-34/+17
Some minor cleanups for the updated consolidated hp6xx mach-type. Signed-off-by: Andriy Skulysh <askulysh@gmail.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Various cosmetic cleanups.Paul Mundt21-106/+60
We had quite a bit of whitespace damage, clean most of it up.. Signed-off-by: Stuart Menefy <stuart.menefy@st.com> Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Make hs7751rvoip/rts7751r2d use pm_power_off.Paul Mundt2-4/+16
These were previously sprinkled in machine_power_off(), though missed being updated when the rest of the boards switched over. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27sh: Kill off the .stack section.Paul Mundt2-3/+1
We had a special .stack section in the ld script that was being used to position r15 initially. This is nonsensical, as we can just use a THREAD_SIZE offset from the init_thread_union instead (as every other arch does). Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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