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Commit Graph

36037 Commits

Author SHA1 Message Date
Andriy Skulysh
848dd26594 video: Update header location in hp680_bl.
Trivial build fix.

Signed-off-by: Andriy Skulysh <askulysh@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 16:09:59 +09:00
Paul Mundt
ae31825e63 sh: Make O= builds work again.
Some of the paths were a bit broken, fix it up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 16:08:24 +09:00
Paul Mundt
00b3aa3fc9 sh: xchg()/__xchg() always_inline fixes for gcc4.
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>
2006-09-27 16:05:56 +09:00
Paul Mundt
bc8bff63ba sh: Drop incdir rule for SE7751.
No longer needed..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 16:04:51 +09:00
Paul Mundt
d2b06a8b17 video: Update pvr2fb for sq API changes.
With the store queue API rework, we need to change the in-kernel
users too.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 16:03:25 +09:00
Paul Mundt
f151749440 sh: Cleanup and document register bank usage.
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>
2006-09-27 16:01:12 +09:00
Paul Mundt
5283ecb5cc sh: Add support for R7780RP and R7780MP boards.
This adds support for the Renesas SH7780 development boards,
R7780RP and R7780MP.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 15:59:17 +09:00
Paul Mundt
d7c30c682a sh: Store Queue API rework.
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>
2006-09-27 15:49:57 +09:00
Paul Mundt
373e68b547 sh: Board updates for I/O routine rework.
This updates the various boards for some of the recent I/O routine
updates.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 15:41:24 +09:00
Paul Mundt
f647d33f87 sh: Fix split ptlock for user mappings in __do_page_fault().
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>
2006-09-27 15:30:24 +09:00
Paul Mundt
c470662854 sh: Fixup SHMLBA definition for SH7705.
We need this set to something sensible anywhere were we have
an aliasing dcache..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 15:29:18 +09:00
Paul Mundt
d7cdc9e8ac sh: ioremap() overhaul.
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>
2006-09-27 15:16:42 +09:00
Paul Mundt
26ff6c11ef sh: page table alloc cleanups and page fault optimizations.
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>
2006-09-27 15:13:36 +09:00
Paul Mundt
9359e75770 sh: export clear_user_page() for the modules that need it.
Some modules seem to need this, so we export it..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 15:09:48 +09:00
Paul Mundt
0c7b1df69c sh: SH-4A Privileged Space Mapping Buffer (PMB) support.
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>
2006-09-27 15:08:07 +09:00
Jamie Lenehan
a09749dd86 sh: Titan board support.
Add support for the titan board.

Signed-off-by: Jamie Lenehan <lenehan@twibble.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 15:05:39 +09:00
Paul Mundt
b7e108ee63 sh: BSS init bugfix and barrier in entry point.
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>
2006-09-27 15:00:04 +09:00
Paul Mundt
298476220d sh: Add control register barriers.
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>
2006-09-27 14:57:44 +09:00
Paul Mundt
749cf48692 sh: Add flag for MMU PTEA capability.
Add CPU_HAS_PTEA, refactor some of the cpu flag settings.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 14:55:41 +09:00
kogiidena
94c0fa520c sh: landisk board support.
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>
2006-09-27 14:53:35 +09:00
Paul Mundt
634bf4f69b sh: Fix libata build.
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>
2006-09-27 14:48:09 +09:00
Ollie Wild
24ab54cb49 sh: Fix TCP payload csum bug in csum_partial_copy_generic().
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>
2006-09-27 14:46:24 +09:00
Paul Mundt
8b395265f8 sh: Fix fatal oops in copy_user_page() on sh4a (SH7780).
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>
2006-09-27 14:38:02 +09:00
Paul Mundt
75c92acdd5 sh: Wire up new syscalls.
The syscall table has lagged behind a bit, wire up the new ones..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 14:36:44 +09:00
Alexey Dobriyan
ef9a1d4c0c sh: remove cpu_online() definition from <asm/smp.h>
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>
2006-09-27 14:32:57 +09:00
Paul Mundt
5b19c9081f sh: Support for SH7770/SH7780 CPU subtypes.
Merge support for SH7770 and SH7780 SH-4A subtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 14:31:40 +09:00
Paul Mundt
555ef19630 sh: Add SH7750S/SH7091 rules for SH7750 oprofile driver.
Update oprofile build rules for additional subtypes,
particularly SH7750S/SH7091.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 14:30:11 +09:00
Paul Mundt
a80fd21e52 sh: earlyprintk= support and cleanups.
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>
2006-09-27 14:26:53 +09:00
Paul Mundt
e86d6b66f5 sh: prefetch()/prefetchw() support.
SH-2/3/4 are able to prefetch, add support for it..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 14:20:54 +09:00
Toshinobu Sugioka
e7be853df7 sh: Fix a sign extension bug in memset().
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>
2006-09-27 14:13:14 +09:00
Paul Mundt
73388cc7c6 sh: Refactor PRR masking to catch newer SH7760 cuts.
Newer SH7760 cuts have a range of acceptable PRR values..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 14:11:33 +09:00
Richard Curnow
b638d0b921 sh: Optimized cache handling for SH-4/SH-4A caches.
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>
2006-09-27 14:09:26 +09:00
Paul Mundt
fdfc74f9fc sh: Support for SH-4A memory barriers.
SH-4A supports 'synco' as a barrier, sprinkle it around
the cache ops as necessary..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 14:05:52 +09:00
Paul Mundt
36efc35447 sh: RTS7751R2D board updates.
More of the same, trivial cleanups, and moving options to their
own board-specific Kconfig.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 14:02:09 +09:00
Paul Mundt
e8fb67f8e0 sh: HS7751RVoIP board updates.
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>
2006-09-27 13:56:28 +09:00
Andriy Skulysh
7e27b9b720 sound: SH DAC audio driver updates.
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>
2006-09-27 13:48:32 +09:00
Andriy Skulysh
048839dc54 video: hitfb suspend/resume and updates.
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>
2006-09-27 13:47:22 +09:00
Paul Mundt
6d75e650f1 sh: Move hd64461.h to a more sensible location.
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>
2006-09-27 13:42:57 +09:00
Paul Mundt
d95fb13c96 sh: Fixup TMU_TOCR definition for SH7300.
SH7300 has a different TMU_TOCR, make the TMU code work again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 13:30:08 +09:00
Paul Mundt
3530570fd4 sh: Kill off dead code for SE and SystemH boards.
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>
2006-09-27 13:28:23 +09:00
Paul Mundt
5c930e8cbf video: Disable vgacon for SuperH.
We don't support this on SH, so just disable it..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 13:20:22 +09:00
Paul Mundt
3f787fe2e0 sh: hugetlb updates.
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>
2006-09-27 13:11:57 +09:00
Andriy Skulysh
4bcac20a7a sh: hp6xx mach-type cleanups.
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>
2006-09-27 13:07:38 +09:00
Paul Mundt
e4c2cfee5d sh: Various cosmetic cleanups.
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>
2006-09-27 12:31:01 +09:00
Paul Mundt
a56d276c05 sh: Make hs7751rvoip/rts7751r2d use pm_power_off.
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>
2006-09-27 11:43:24 +09:00
Paul Mundt
50e98e72e4 sh: Kill off the .stack section.
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>
2006-09-27 11:40:05 +09:00
Paul Mundt
6ae5e8d759 sh: Fix kGDB NMI handling.
in_nmi shifted down a few labels, so we were inadvertently
clearing the lower byte of do_syscall_trace, badness ensues.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 11:37:33 +09:00
Paul Mundt
1c5f8f85df sh: Move syscall table in to syscall.S.
Move the syscall table in to its own file, as per sh64. The entry.S
bits will end up being considerably different in the sh2/sh2a cases,
so this lets us keep things in sync somewhat..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 11:36:10 +09:00
Paul Mundt
765ae317ce sh: Fixup some uninitialized spinlocks.
Fix use of uninitialized spinlocks, caught with spinlock debugging..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 11:31:32 +09:00
Paul Mundt
a252710fc5 sh: flush_cache_range() cleanup and optimizations.
flush_cache_range() wasn't page aligning the end of the range,
we can't assume that it will always be page aligned, and we
ended up getting unaligned faults in some rare call paths.

Additionally, we add a small optimization to just purge the
dcache entirely if the range is large enough that the page
table walking will take longer. We use an arbitrary value of
64 pages for the large range size, as per sh64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2006-09-27 11:29:55 +09:00