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| * sh: math-emu supportTakashi YOSHII2006-09-271-0/+86
| | | | | | | | | | | | | | 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 Mundt2006-09-271-2/+2
| | | | | | | | | | | | | | 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 Mundt2006-09-273-54/+19
| | | | | | | | | | | | | | | | | | | | 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 Mundt2006-09-274-31/+13
| | | | | | | | | | | | Nothing exciting here, just trivial fixes.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Consolidated SH7751/SH7780 PCI support.Paul Mundt2006-09-272-3/+37
| | | | | | | | | | | | | | | | 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 Mundt2006-09-271-0/+15
| | | | | | | | | | | | | | | | 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: APM/PM support.Andriy Skulysh2006-09-277-3/+151
| | | | | | | | | | | | | | | | | | 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: Free up some and document PTEL flags.Paul Mundt2006-09-271-31/+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>
| * sh: xchg()/__xchg() always_inline fixes for gcc4.Paul Mundt2006-09-271-25/+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>
| * sh: Cleanup and document register bank usage.Paul Mundt2006-09-272-3/+31
| | | | | | | | | | | | | | 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>
| * sh: Add support for R7780RP and R7780MP boards.Paul Mundt2006-09-2710-15/+236
| | | | | | | | | | | | | | 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 Mundt2006-09-271-18/+5
| | | | | | | | | | | | | | | | | | | | | | | | 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 Mundt2006-09-2714-213/+29
| | | | | | | | | | | | | | This updates the various boards for some of the recent I/O routine updates. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Fixup SHMLBA definition for SH7705.Paul Mundt2006-09-275-81/+38
| | | | | | | | | | | | | | We need this set to something sensible anywhere were we have an aliasing dcache.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: ioremap() overhaul.Paul Mundt2006-09-272-1/+13
| | | | | | | | | | | | | | | | | | | | 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 Mundt2006-09-277-102/+73
| | | | | | | | | | | | | | | | | | | | | | 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: SH-4A Privileged Space Mapping Buffer (PMB) support.Paul Mundt2006-09-271-1/+47
| | | | | | | | | | | | | | 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 Lenehan2006-09-271-0/+43
| | | | | | | | | | | | | | Add support for the titan board. Signed-off-by: Jamie Lenehan <lenehan@twibble.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Add control register barriers.Paul Mundt2006-09-272-13/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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: landisk board support.kogiidena2006-09-273-0/+137
| | | | | | | | | | | | | | 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 libata build.Paul Mundt2006-09-272-9/+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>
| * sh: Fix fatal oops in copy_user_page() on sh4a (SH7780).Paul Mundt2006-09-271-4/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Mundt2006-09-271-2/+24
| | | | | | | | | | | | The syscall table has lagged behind a bit, wire up the new ones.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: remove cpu_online() definition from <asm/smp.h>Alexey Dobriyan2006-09-271-5/+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>
| * sh: Support for SH7770/SH7780 CPU subtypes.Paul Mundt2006-09-272-0/+6
| | | | | | | | | | | | Merge support for SH7770 and SH7780 SH-4A subtypes. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: earlyprintk= support and cleanups.Paul Mundt2006-09-271-0/+2
| | | | | | | | | | | | | | | | | | | | 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: prefetch()/prefetchw() support.Paul Mundt2006-09-271-0/+13
| | | | | | | | | | | | SH-2/3/4 are able to prefetch, add support for it.. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Optimized cache handling for SH-4/SH-4A caches.Richard Curnow2006-09-271-4/+18
| | | | | | | | | | | | | | | | | | 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/+7
| | | | | | | | | | | | | | 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: HS7751RVoIP board updates.Paul Mundt2006-09-271-0/+6
| | | | | | | | | | | | | | | | 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 Mundt2006-09-273-68/+26
| | | | | | | | | | | | | | 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: Fixup TMU_TOCR definition for SH7300.Paul Mundt2006-09-271-3/+4
| | | | | | | | | | | | SH7300 has a different TMU_TOCR, make the TMU code work again. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: hugetlb updates.Paul Mundt2006-09-271-1/+0
| | | | | | | | | | | | | | | | | | 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: Various cosmetic cleanups.Paul Mundt2006-09-275-12/+12
| | | | | | | | | | | | | | | | 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: Add a simple cmpxchg().Tom Rini2006-09-271-0/+40
| | | | | | | | | | | | | | | | We didn't have one of these before, a simple implementation borrowed from MIPS as well as the __HAVE_ARCH_CMPXCHG bits. Signed-off-by: Tom Rini <trini@kernel.crashing.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
| * sh: Move smc37c93x.h for SystemH board use.Paul Mundt2006-09-271-0/+0
| | | | | | | | | | | | SystemH needs this header as well, not just 770x SE. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
* | [PATCH] consistently use MAX_ERRNO in __syscall_returnRandy Dunlap2006-09-271-2/+5
|/ | | | | | | | | | Consistently use MAX_ERRNO when checking for errors in __syscall_return(). [ralf@linux-mips.org: build fix] Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Standardize pxx_page macrosDave McCracken2006-09-262-3/+6
| | | | | | | | | | | | | | | | | | | | | One of the changes necessary for shared page tables is to standardize the pxx_page macros. pte_page and pmd_page have always returned the struct page associated with their entry, while pte_page_kernel and pmd_page_kernel have returned the kernel virtual address. pud_page and pgd_page, on the other hand, return the kernel virtual address. Shared page tables needs pud_page and pgd_page to return the actual page structures. There are very few actual users of these functions, so it is simple to standardize their usage. Since this is basic cleanup, I am submitting these changes as a standalone patch. Per Hugh Dickins' comments about it, I am also changing the pxx_page_kernel macros to pxx_page_vaddr to clarify their meaning. Signed-off-by: Dave McCracken <dmccr@us.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Fix 'make headers_check' on shPaul Mundt2006-09-212-4/+1
| | | | | | | | | | Cleanup for user headers, as noted: asm-sh/page.h requires asm-generic/memory_model.h, which does not exist in exported headers asm-sh/ptrace.h requires asm/ubc.h, which does not exist in exported headers Signed-off-by: Paul Mundt <lethal@linux-sh.org> Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* [PATCH] sh: fix FPN_START typoAlexey Dobriyan2006-09-081-1/+1
| | | | | | | | | | | Not that it passes allmodconfig without it... Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Cc: Mark Haverkamp <markh@osdl.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] remove set_wmb - arch removalSteven Rostedt2006-07-141-1/+0
| | | | | | | | | | | | | | | | set_wmb should not be used in the kernel because it just confuses the code more and has no benefit. Since it is not currently used in the kernel this patch removes it so that new code does not include it. All archs define set_wmb(var, value) to do { var = value; wmb(); } while(0) except ia64 and sparc which use a mb() instead. But this is still moot since it is not used anyway. Hasn't been tested on any archs but x86 and x86_64 (and only compiled tested) Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* [PATCH] Make cpu_relax() imply barrier() on all archesChase Venters2006-07-121-1/+2
| | | | | | | | | | | | | During the recent discussion of taking 'volatile' off of the spinlock, I noticed that while most arches #define cpu_relax() such that it implies barrier(), some arches define cpu_relax() to be empty. This patch changes the definition of cpu_relax() for frv, h8300, m68knommu, sh, sh64, v850 and xtensa from an empty while(0) to the compiler barrier(). Signed-off-by: Chase Venters <chase.venters@clientec.com> Acked-by: Arjan van de Ven <arjan@Linux.intel.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* Merge git://git.infradead.org/hdrinstall-2.6Linus Torvalds2006-07-041-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | * git://git.infradead.org/hdrinstall-2.6: Remove export of include/linux/isdn/tpam.h Remove <linux/i2c-id.h> and <linux/i2c-algo-ite.h> from userspace export Restrict headers exported to userspace for SPARC and SPARC64 Add empty Kbuild files for 'make headers_install' in remaining arches. Add Kbuild file for Alpha 'make headers_install' Add Kbuild file for SPARC 'make headers_install' Add Kbuild file for IA64 'make headers_install' Add Kbuild file for S390 'make headers_install' Add Kbuild file for i386 'make headers_install' Add Kbuild file for x86_64 'make headers_install' Add Kbuild file for PowerPC 'make headers_install' Add generic Kbuild files for 'make headers_install' Basic implementation of 'make headers_check' Basic implementation of 'make headers_install'
| * Add empty Kbuild files for 'make headers_install' in remaining arches.David Woodhouse2006-06-181-0/+1
| | | | | | | | | | | | | | | | These include nothing more than the basic set of files listed in asm-generic/Kbuild.asm. Any extra arch-specific files will need to be added. Signed-off-by: David Woodhouse <dwmw2@infradead.org>
* | [PATCH] sched: cleanup, remove task_t, convert to struct task_structIngo Molnar2006-07-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | cleanup: remove task_t and convert all the uses to struct task_struct. I introduced it for the scheduler anno and it was a mistake. Conversion was mostly scripted, the result was reviewed and all secondary whitespace and style impact (if any) was fixed up by hand. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] lockdep: remove RWSEM_DEBUG remnantsIngo Molnar2006-07-031-17/+1
| | | | | | | | | | | | | | | | | | RWSEM_DEBUG used to be a printk based 'tracing' facility, probably used for very early prototypes of the rwsem code. Remove it. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] irq-flags: SH: Use the new IRQF_ constantsThomas Gleixner2006-07-023-8/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: Kazumoto Kojima <kkojima@rr.iij4u.or.jp> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [AF_UNIX]: Datagram getpeersecCatherine Zhang2006-06-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch implements an API whereby an application can determine the label of its peer's Unix datagram sockets via the auxiliary data mechanism of recvmsg. Patch purpose: This patch enables a security-aware application to retrieve the security context of the peer of a Unix datagram socket. The application can then use this security context to determine the security context for processing on behalf of the peer who sent the packet. Patch design and implementation: The design and implementation is very similar to the UDP case for INET sockets. Basically we build upon the existing Unix domain socket API for retrieving user credentials. Linux offers the API for obtaining user credentials via ancillary messages (i.e., out of band/control messages that are bundled together with a normal message). To retrieve the security context, the application first indicates to the kernel such desire by setting the SO_PASSSEC option via getsockopt. Then the application retrieves the security context using the auxiliary data mechanism. An example server application for Unix datagram socket should look like this: toggle = 1; toggle_len = sizeof(toggle); setsockopt(sockfd, SOL_SOCKET, SO_PASSSEC, &toggle, &toggle_len); recvmsg(sockfd, &msg_hdr, 0); if (msg_hdr.msg_controllen > sizeof(struct cmsghdr)) { cmsg_hdr = CMSG_FIRSTHDR(&msg_hdr); if (cmsg_hdr->cmsg_len <= CMSG_LEN(sizeof(scontext)) && cmsg_hdr->cmsg_level == SOL_SOCKET && cmsg_hdr->cmsg_type == SCM_SECURITY) { memcpy(&scontext, CMSG_DATA(cmsg_hdr), sizeof(scontext)); } } sock_setsockopt is enhanced with a new socket option SOCK_PASSSEC to allow a server socket to receive security context of the peer. Testing: We have tested the patch by setting up Unix datagram client and server applications. We verified that the server can retrieve the security context using the auxiliary data mechanism of recvmsg. Signed-off-by: Catherine Zhang <cxzhang@watson.ibm.com> Acked-by: Acked-by: James Morris <jmorris@namei.org> Signed-off-by: David S. Miller <davem@davemloft.net>
* | [PATCH] genirq: add ->retrigger() irq op to consolidate hw_irq_resend()Ingo Molnar2006-06-291-5/+0
| | | | | | | | | | | | | | | | | | | | | | | | Add ->retrigger() irq op to consolidate hw_irq_resend() implementations. (Most architectures had it defined to NOP anyway.) NOTE: ia64 needs testing. i386 and x86_64 tested. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
* | [PATCH] random: remove SA_SAMPLE_RANDOM from floppy driverMatt Mackall2006-06-251-4/+3
|/ | | | | | | | | The floppy driver is already calling add_disk_randomness as it should, so this was redundant. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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