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* sh: Drop incdir rule for SE7751.Paul Mundt2006-09-271-2/+0Star
| | | | | | No longer needed.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: Add support for R7780RP and R7780MP boards.Paul Mundt2006-09-2720-34/+2448
| | | | | | | 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 Mundt2006-09-271-296/+246Star
| | | | | | | | | | | | 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 Mundt2006-09-2728-457/+171Star
| | | | | | | 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 Mundt2006-09-271-3/+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>
* sh: ioremap() overhaul.Paul Mundt2006-09-2713-322/+361
| | | | | | | | | | 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 Mundt2006-09-276-165/+188
| | | | | | | | | | | 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 Mundt2006-09-271-0/+1
| | | | | | 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 Mundt2006-09-272-1/+271
| | | | | | | 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 Lenehan2006-09-279-12/+1721
| | | | | | | 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 Mundt2006-09-271-5/+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>
* sh: Add control register barriers.Paul Mundt2006-09-272-2/+8
| | | | | | | | | | | | | | | | | | | | | | | 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 Mundt2006-09-273-21/+31
| | | | | | Add CPU_HAS_PTEA, refactor some of the cpu flag settings. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: landisk board support.kogiidena2006-09-279-1/+2477
| | | | | | | 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 Wild2006-09-271-1/+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>
* sh: Fix fatal oops in copy_user_page() on sh4a (SH7780).Paul Mundt2006-09-271-10/+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>
* sh: Wire up new syscalls.Paul Mundt2006-09-271-0/+28
| | | | | | 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 Mundt2006-09-274-0/+185
| | | | | | 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 Mundt2006-09-271-0/+4
| | | | | | | 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 Mundt2006-09-272-30/+98
| | | | | | | | | | 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 Sugioka2006-09-271-0/+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>
* sh: Refactor PRR masking to catch newer SH7760 cuts.Paul Mundt2006-09-271-3/+9
| | | | | | 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 Curnow2006-09-274-186/+457
| | | | | | | | | 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 Mundt2006-09-271-0/+5
| | | | | | | SH-4A supports 'synco' as a barrier, sprinkle it around the cache ops as necessary.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: RTS7751R2D board updates.Paul Mundt2006-09-277-81/+68Star
| | | | | | | More of the same, trivial cleanups, and moving options to their own board-specific Kconfig. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: HS7751RVoIP board updates.Paul Mundt2006-09-275-68/+65Star
| | | | | | | | 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>
* sh: Move hd64461.h to a more sensible location.Paul Mundt2006-09-272-8/+6Star
| | | | | | | 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>
* sh: Kill off dead code for SE and SystemH boards.Paul Mundt2006-09-278-58/+12Star
| | | | | | | | 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>
* sh: hugetlb updates.Paul Mundt2006-09-271-36/+16Star
| | | | | | | | | 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>
* sh: hp6xx mach-type cleanups.Andriy Skulysh2006-09-271-1/+1
| | | | | | | | 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>
* sh: Various cosmetic cleanups.Paul Mundt2006-09-2715-60/+24Star
| | | | | | | | 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>
* sh: Make hs7751rvoip/rts7751r2d use pm_power_off.Paul Mundt2006-09-272-4/+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>
* sh: Kill off the .stack section.Paul Mundt2006-09-272-3/+1Star
| | | | | | | | | | 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>
* sh: Fix kGDB NMI handling.Paul Mundt2006-09-271-1/+1
| | | | | | | 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>
* sh: Move syscall table in to syscall.S.Paul Mundt2006-09-273-298/+325
| | | | | | | | 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>
* sh: Fixup some uninitialized spinlocks.Paul Mundt2006-09-272-2/+2
| | | | | | Fix use of uninitialized spinlocks, caught with spinlock debugging.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* sh: flush_cache_range() cleanup and optimizations.Paul Mundt2006-09-271-26/+46
| | | | | | | | | | | | | 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>
* sh: Move smc37c93x.h for SystemH board use.Paul Mundt2006-09-271-1/+1
| | | | | | SystemH needs this header as well, not just 770x SE. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds2006-09-26143-4477/+5735
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: (225 commits) [PATCH] Don't set calgary iommu as default y [PATCH] i386/x86-64: New Intel feature flags [PATCH] x86: Add a cumulative thermal throttle event counter. [PATCH] i386: Make the jiffies compares use the 64bit safe macros. [PATCH] x86: Refactor thermal throttle processing [PATCH] Add 64bit jiffies compares (for use with get_jiffies_64) [PATCH] Fix unwinder warning in traps.c [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing conf1 [PATCH] x86: Move direct PCI scanning functions out of line [PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCI [PATCH] Don't leak NT bit into next task [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinder [PATCH] Fix some broken white space in ia32_signal.c [PATCH] Initialize argument registers for 32bit signal handlers. [PATCH] Remove all traces of signal number conversion [PATCH] Don't synchronize time reading on single core AMD systems [PATCH] Remove outdated comment in x86-64 mmconfig code [PATCH] Use string instructions for Core2 copy/clear [PATCH] x86: - restore i8259A eoi status on resume [PATCH] i386: Split multi-line printk in oops output. ...
| * [PATCH] Don't set calgary iommu as default yAndi Kleen2006-09-261-1/+0Star
| | | | | | | | | | | | Most systems don't need it. Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] i386/x86-64: New Intel feature flagsDave Jones2006-09-262-4/+4
| | | | | | | | | | | | | | | | | | | | | | Add supplemental SSE3 instructions flag, and Direct Cache Access flag. As described in "Intel Processor idenfication and the CPUID instruction AP485 Sept 2006" AK: also added for x86-64 Signed-off-by: Dave Jones <davej@redhat.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] x86: Add a cumulative thermal throttle event counter.Dmitriy Zavin2006-09-263-6/+133
| | | | | | | | | | | | | | | | | | | | | | | | The counter is exported to /sys that keeps track of the number of thermal events, such that the user knows how bad the thermal problem might be (since the logging to syslog and mcelog is rate limited). AK: Fixed cpu hotplug locking Signed-off-by: Dmitriy Zavin <dmitriyz@google.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] i386: Make the jiffies compares use the 64bit safe macros.Dmitriy Zavin2006-09-261-3/+4
| | | | | | | | | | Signed-off-by: Dmitriy Zavin <dmitriyz@google.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] x86: Refactor thermal throttle processingDmitriy Zavin2006-09-266-41/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Refactor the event processing (syslog messaging and rate limiting) into separate file therm_throt.c. This allows consistent reporting of CPU thermal throttle events. After ACK'ing the interrupt, if the event is current, the user (p4.c/mce_intel.c) calls therm_throt_process to log (and rate limit) the event. If that function returns 1, the user has the option to log things further (such as to mce_log in x86_64). AK: minor cleanup Signed-off-by: Dmitriy Zavin <dmitriyz@google.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] x86: Allow disabling early pci scans with pci=noearly or disallowing ↵Andi Kleen2006-09-269-2/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | conf1 Some buggy systems can machine check when config space accesses happen for some non existent devices. i386/x86-64 do some early device scans that might trigger this. Allow pci=noearly to disable this. Also when type 1 is disabling also don't do any early accesses which are always type1. This moves the pci= configuration parsing to be a early parameter. I don't think this can break anything because it only changes a single global that is only used by PCI. Cc: gregkh@suse.de Cc: Trammell Hudson <hudson@osresearch.net> Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] x86: Move direct PCI scanning functions out of lineAndi Kleen2006-09-263-2/+47
| | | | | | | | | | | | Saves about 200 bytes of code space. Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] i386/x86-64: Make all early PCI scans dependent on CONFIG_PCIAndi Kleen2006-09-265-2/+10
| | | | | | | | | | | | | | | | | | | | | | This is useful on systems with broken PCI bus. Affects various scans in x86-64 and i386's early ACPI quirk scan. Cc: gregkh@suse.de Cc: len.brown@intel.com Cc: Trammell Hudson <hudson@osresearch.net> Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] Don't leak NT bit into next taskAndi Kleen2006-09-262-0/+8
| | | | | | | | | | | | | | | | | | SYSENTER can cause a NT to be set which might cause crashes on the IRET in the next task. Following similar i386 patch from Linus. Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] i386/x86-64: Work around gcc bug with noreturn functions in unwinderJan Beulich2006-09-265-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Current gcc generates calls not jumps to noreturn functions. When that happens the return address can point to the next function, which confuses the unwinder. This patch works around it by marking asynchronous exception frames in contrast normal call frames in the unwind information. Then teach the unwinder to decode this. For normal call frames the unwinder now subtracts one from the address which avoids this problem. The standard libgcc unwinder uses the same trick. It doesn't include adjustment of the printed address (i.e. for the original example, it'd still be kernel_math_error+0 that gets displayed, but the unwinder wouldn't get confused anymore. This only works with binutils 2.6.17+ and some versions of H.J.Lu's 2.6.16 unfortunately because earlier binutils don't support .cfi_signal_frame [AK: added automatic detection of the new binutils and wrote description] Signed-off-by: Jan Beulich <jbeulich@novell.com> Signed-off-by: Andi Kleen <ak@suse.de>
| * [PATCH] Fix some broken white space in ia32_signal.cAndi Kleen2006-09-261-5/+5
| | | | | | | | | | No functional changes Signed-off-by: Andi Kleen <ak@suse.de>
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