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* [PATCH] powerpc: Dont set 32bit cputable bits on 64bitAnton Blanchard2006-01-08
| | | | | | | | Milton and I were looking at the cputable code and it looks like we can set spurious bits on 64bit. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc64: Add NUMA cpu summary at bootAnton Blanchard2006-01-08
| | | | | | | | | | | | | | We used to print a NUMA cpu summary at boot before the hotplug cpu code was added. This has been useful for catching machine configuration as well as firmware bugs in the past. This patch restores that functionality. An example of the output is: Node 0 CPUs: 0-7 Node 1 CPUs: 8-15 Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc32: Add TQM85xx (8540/8541/8555/8560) board supportKumar Gala2006-01-08
| | | | | | | | | This patch adds support for the TQ Components TQM85xx modules. Currently the modules TQM8540/8541/8555/8560 are supported. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: Improved SPU preemptability [part 2].Arnd Bergmann2006-01-08
| | | | | | | | | | | | | | | | | | | This patch reduces lock complexity of SPU scheduler, particularly for involuntary preemptive switches. As a result the new code does a better job of mapping the highest priority tasks to SPUs. Lock complexity is reduced by using the system default workqueue to perform involuntary saves. In this way we avoid nasty lock ordering problems that the previous code had. A "minimum timeslice" for SPU contexts is also introduced. The intent here is to avoid thrashing. While the new scheduler does a better job at prioritization it still does nothing for fairness. From: Mark Nutter <mnutter@us.ibm.com> Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: Improved SPU preemptability.Arnd Bergmann2006-01-08
| | | | | | | | | | | | | | | | This patch makes it easier to preempt an SPU context by having the scheduler hold ctx->state_sema for much shorter periods of time. As part of this restructuring, the control logic for the "run" operation is moved from arch/ppc64/kernel/spu_base.c to fs/spufs/file.c. Of course the base retains "bottom half" handlers for class{0,1} irqs. The new run loop will re-acquire an SPU if preempted. From: Mark Nutter <mnutter@us.ibm.com> Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add arch-dependent copy_oldmem_pageMichael Ellerman2006-01-08
| | | | | | Signed-off-by: Haren Myneni <haren@us.ibm.com> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add arch dependent basic infrastructure for Kdump.Michael Ellerman2006-01-08
| | | | | | | | | | | | | | | | | | | | Implementing the machine_crash_shutdown which will be called by crash_kexec (called in case of a panic, sysrq etc.). Disable the interrupts, shootdown cpus using debugger IPI and collect regs for all CPUs. elfcorehdr= specifies the location of elf core header stored by the crashed kernel. This command line option will be passed by the kexec-tools to capture kernel. savemaxmem= specifies the actual memory size that the first kernel has and this value will be used for dumping in the capture kernel. This command line option will be passed by the kexec-tools to capture kernel. Signed-off-by: Haren Myneni <haren@us.ibm.com> Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fixups for kernel linked at 32 MBMichael Ellerman2006-01-08
| | | | | | | | | | | | | | | | | | | | | | There's a few places where we need to fix things up for the kernel to work if it's linked at 32MB: - platforms/powermac/smp.c To start secondary cpus on pmac we patch the reset vector, which is fine. Except if we're above 32MB we don't have enough bits for an absolute branch, it needs to relative. - kernel/head_64.s - A few branches in the cpu hold code need to load the full target address and do a bctr. - after_prom_start needs to load PHYSICAL_START as the dest address, not 0. - The exception prolog needs to load the low word of the target adddress, not just the low halfword. - Fixup handling of the initial stab address. - kernel/setup_64.c smp_release_cpus() needs to write 1 to the spinloop flag near 0, not 32 MB. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Reroute interrupts from 0 + offset to PHYSICAL_START + offsetMichael Ellerman2006-01-08
| | | | | | | | | | | | Regardless of where the kernel's linked we always get interrupts at low addresses. This patch creates a trampoline in the first 3 pages of memory, where interrupts land, and patches those addresses to jump into the real kernel code at PHYSICAL_START. We also need to reserve the trampoline code and a bit more in prom.c Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Create a trampoline for the fwnmi vectorsMichael Ellerman2006-01-08
| | | | | | | | | The fwnmi vectors can be anywhere < 32 MB, so we need to use a trampoline for them. The kdump kernel will register the trampoline addresses, which will then jump up to the real code above 32 MB. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add CONFIG_CRASH_DUMPMichael Ellerman2006-01-08
| | | | | | | | | | This patch adds a Kconfig variable, CONFIG_CRASH_DUMP, which configures the built kernel for use as a Kdump kernel. Currently "all" this involves is changing the value of KERNELBASE to 32 MB. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: numa placement for dynamically added memoryMike Kravetz2006-01-08
| | | | | | | | | This places dynamically added memory within the appropriate numa node. A new routine hot_add_scn_to_nid() replicates most of the memory scanning code in parse_numa_properties(). Signed-off-by: Mike Kravetz <kravetz@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Separate usage of KERNELBASE and PAGE_OFFSETMichael Ellerman2006-01-08
| | | | | | | | | | | | | | | | | | | | | This patch separates usage of KERNELBASE and PAGE_OFFSET. I haven't looked at any of the PPC32 code, if we ever want to support Kdump on PPC we'll have to do another audit, ditto for iSeries. This patch makes PAGE_OFFSET the constant, it'll always be 0xC * 1 gazillion for 64-bit. To get a physical address from a virtual one you subtract PAGE_OFFSET, _not_ KERNELBASE. KERNELBASE is the virtual address of the start of the kernel, it's often the same as PAGE_OFFSET, but _might not be_. If you want to know something's offset from the start of the kernel you should subtract KERNELBASE. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add a is_kernel_addr() macroMichael Ellerman2006-01-08
| | | | | | | | | | | There's a bunch of code that compares an address with KERNELBASE to see if it's a "kernel address", ie. >= KERNELBASE. The proper test is actually to compare with PAGE_OFFSET, since we're going to change KERNELBASE soon. So replace all of them with an is_kernel_addr() macro that does that. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Propagate regs through to machine_crash_shutdownMichael Ellerman2006-01-08
| | | | | | | | Currently machine_crash_shutdown() gets a struct pt_regs, but doesn't pass it through to the ppc_md function, it should. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Update OF address parsersBenjamin Herrenschmidt2006-01-08
| | | | | | | | | | | This updates the OF address parsers to return the IO flags indicating the type of address obtained. It also adds a PCI call for converting physical addresses that hit IO space into into IO tokens, and add routines that return the translated addresses into struct resource Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: udbg updatesBenjamin Herrenschmidt2006-01-08
| | | | | | | | | | | | The udbg low level io layer has an issue with udbg_getc() returning a char (unsigned on ppc) instead of an int, thus the -1 if you had no available input device could end up turned into 0xff, filling your display with bogus characters. This fixes it, along with adding a little blob to xmon to do a delay before exiting when getting an EOF and fixing the detection of ADB keyboards in udbg_adb.c Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: migrate common PCI hotplug codeLinas Vepstas2006-01-08
| | | | | | | | | | | | | 23-rpaphp-migrate.patch (parts) This patch moves some pci device add & remove code from the PCI hotplug directory to the arch/powerpc/kernel directory, and cleans it up a tad. The primary reason for this is that the code performs some fairly generic operations that are shared with the PCI error recovery code (living in the arch/powerpc/kernel directory). Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: make pcibios_claim_one_bus available to other codeLinas Vepstas2006-01-08
| | | | | | | | | | | | | | | | 22-rpaphp-eliminate-dupe-code.patch (parts) The RPAPHP code contains two routines that appear to be gratuitous copies of very similar pci code. In particular, rpaphp_claim_resource ~~ pci_claim_resource rpadlpar_claim_one_bus == pcibios_claim_one_bus This makes pcibios_claim_one_bus from arch/powerpc/kernel/pci_64.c available to the RPAPHP code. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: PCI hotplug common code eliminationLinas Vepstas2006-01-08
| | | | | | | | | | | | | | | | 20-rpaphp-eeh-cleanup.patch This patch move some code from the rpaphp directory, to the powerpc directory, where it should have been all along (Among other things, I need it in the powerpc directory for the PCI error recovery.) Please note that patch affects TWO maintainers: Paul, after applying the powerpc part, please ask that GregKH appli the PCI part. It is safe to have the powerpc part go in first. It would be bad to have the PCI part go in first. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Remove some unneeded fields from the pacaDavid Gibson2006-01-08
| | | | | | | | | | | | | | | | | | | This patch removes several unnecessary fields from the paca: - next_jiffy_update_tb was simply unused. Remove trivially. - The exdsi exception save area was not used. There were plans to use it, but they never seem to have gone anywhere. If they ever do, we can put it back. Remove from the paca, and from asm-offsets.c - The default_decr field was used from asm, but was only ever assigned the value of tb_ticks_per_jiffy. Just access tb_ticks_per_jiffy from asm directly instead. Built and booted on POWER5 LPAR and iSeries RS64. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Remove ItLpRegSave area from the pacaDavid Gibson2006-01-08
| | | | | | | | | | | | | | | On iSeries, the paca contains, amongst other things an ItLpRegSave structure used by the hypervisor to save registers. The hypervisor locates this area through a pointer at the beginning of the paca, so the structure itself can be located elsewhere. This patch moves the reg_save area out into its own array. This reduces the amount of iSeries specific gunk which is visible to general powerpc code via paca.h Built and booted on POWER5 LPAR and iSeries RS64. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add back support for booting from BootX (#2)Benjamin Herrenschmidt2006-01-08
| | | | | | | | | | ARCH=powerpc couldn't boot from BootX as it uses a "different" way of getting in the kernel. This patch adds the necessary trampolines, creating a flattened device-tree from the tree passed from MacOS, and initializing the btext engine early for really-early debugging. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Unify udbg (#2)Benjamin Herrenschmidt2006-01-08
| | | | | | | | | | | | | | | | | | This patch unifies udbg for both ppc32 and ppc64 when building the merged achitecture. xmon now has a single "back end". The powermac udbg stuff gets enriched with some ADB capabilities and btext output. In addition, the early_init callback is now called on ppc32 as well, approx. in the same order as ppc64 regarding device-tree manipulations. The init sequences of ppc32 and ppc64 are getting closer, I'll unify them in a later patch. For now, you can force udbg to the scc using "sccdbg" or to btext using "btextdbg" on powermacs. I'll implement a cleaner way of forcing udbg output to something else than the autodetected OF output device in a later patch. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: serial port discovery (#2)Benjamin Herrenschmidt2006-01-08
| | | | | | | | | | | | | | | | This moves the discovery of legacy serial ports to a separate file, makes it common to ppc32 and ppc64, and reworks it to use the new OF address translators to get to the ports early. This new version can also detect some PCI serial cards using legacy chips and will probably match those discovered port with the default console choice. Only ppc64 gets udbg still yet, unifying udbg isn't finished yet. It also adds some speed-probing code to udbg so that the default console can come up at the same speed it was set to by the firmware. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Add OF address parsing code (#2)Benjamin Herrenschmidt2006-01-08
| | | | | | | | | | | | | | | | | Parsing addresses extracted from Open Firmware isn't a simple matter. We have various bits of code that try to do it in various place, including some heuristics in prom.c that pre-parse addresses at boot and fill device-nodes "addrs", but those are dodgy at best and I want to deprecate them. So this patch introduces a new set of routines that should be capable of parsing most types of addresses and translating them into CPU physical addresses. It currently works for things on PCI busses and ISA busses and should work on "standard" busses like the root bus or the MacIO bus that don't put funky flags in addresses. If you have other bus types that do use funky flags, you'll have to add new bus type translators, which is fairly easy. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* ppc: remove duplicate bseip.hPaul Mackerras2006-01-08
| | | | | | | | include/asm-ppc/bseip.h is a duplicate of arch/ppc/platforms/bseip.h and is not referenced anywhere, so get rid of it. Pointed out by Marcelo Tosatti. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Update __NR_syscalls to account for SPU syscallsPaul Mackerras2006-01-08
| | | | | | | A previous patch ended up not increasing __NR_syscalls to account for the new SPU syscalls (probably my fault). Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: cooperative scheduler supportArnd Bergmann2006-01-08
| | | | | | | | | | | | | | | | | | | | | | | | This adds a scheduler for SPUs to make it possible to use more logical SPUs than physical ones are present in the system. Currently, there is no support for preempting a running SPU thread, they have to leave the SPU by either triggering an event on the SPU that causes it to return to the owning thread or by sending a signal to it. This patch also adds operations that enable accessing an SPU in either runnable or saved state. We use an RW semaphore to protect the state of the SPU from changing underneath us, while we are holding it readable. In order to change the state, it is acquired writeable and a context save or restore is executed before downgrading the semaphore to read-only. From: Mark Nutter <mnutter@us.ibm.com>, Uli Weigand <Ulrich.Weigand@de.ibm.com> Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] kernel-side context switch code for spufsMark Nutter2006-01-08
| | | | | | | | This adds the code needed to perform a context switch from spufs, following the recommended 76-step sequence. Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: switchable spu contextsMark Nutter2006-01-08
| | | | | | | | | | | | | | Add some infrastructure for saving and restoring the context of an SPE. This patch creates a new structure that can hold the whole state of a physical SPE in memory. It also contains code that avoids races during the context switch and the binary code that is loaded to the SPU in order to access its registers. The actual PPE- and SPE-side context switch code are two separate patches. Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] spufs: The SPU file system, baseArnd Bergmann2006-01-08
| | | | | | | | | | | | | | | | | | | | | This is the current version of the spu file system, used for driving SPEs on the Cell Broadband Engine. This release is almost identical to the version for the 2.6.14 kernel posted earlier, which is available as part of the Cell BE Linux distribution from http://www.bsc.es/projects/deepcomputing/linuxoncell/. The first patch provides all the interfaces for running spu application, but does not have any support for debugging SPU tasks or for scheduling. Both these functionalities are added in the subsequent patches. See Documentation/filesystems/spufs.txt on how to use spufs. Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: IBMEBUS bus supportHeiko J Schick2006-01-08
| | | | | | | | | | | This patch adds the necessary core bus support used by device drivers that sit on the IBM GX bus on modern pSeries machines like the Galaxy infiniband for example. It provide transparent DMA ops (the low level driver works with virtual addresses directly) along with a simple bus layer using the Open Firmware matching routines. Signed-off-by: Heiko J Schick <schickhj@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] syscall entry/exit revampDavid Woodhouse2006-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This cleanup patch speeds up the null syscall path on ppc64 by about 3%, and brings the ppc32 and ppc64 code slightly closer together. The ppc64 code was checking current_thread_info()->flags twice in the syscall exit path; once for TIF_SYSCALL_T_OR_A before disabling interrupts, and then again for TIF_SIGPENDING|TIF_NEED_RESCHED etc after disabling interrupts. Now we do the same as ppc32 -- check the flags only once in the fast path, and re-enable interrupts if necessary in the ptrace case. The patch abolishes the 'syscall_noerror' member of struct thread_info and replaces it with a TIF_NOERROR bit in the flags, which is handled in the slow path. This shortens the syscall entry code, which no longer needs to clear syscall_noerror. The patch adds a TIF_SAVE_NVGPRS flag which causes the syscall exit slow path to save the non-volatile GPRs into a signal frame. This removes the need for the assembly wrappers around sys_sigsuspend(), sys_rt_sigsuspend(), et al which existed solely to save those registers in advance. It also means I don't have to add new wrappers for ppoll() and pselect(), which is what I was supposed to be doing when I got distracted into this... Finally, it unifies the ppc64 and ppc32 methods of handling syscall exit directly into a signal handler (as required by sigsuspend et al) by introducing a TIF_RESTOREALL flag which causes _all_ the registers to be reloaded from the pt_regs by taking the ret_from_exception path, instead of the normal syscall exit path which stomps on the callee-saved GPRs. It appears to pass an LTP test run on ppc64, and passes basic testing on ppc32 too. Brief tests of ptrace functionality with strace and gdb also appear OK. I wouldn't send it to Linus for 2.6.15 just yet though :) Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: moved ipic code to arch/powerpcKumar Gala2006-01-08
| | | | | | | | Moved 83xx and QUICC Engine interrupt handling code into arch/powerpc as a precursor of getting 83xx sub-arch building in arch/powerpc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Merge kexecMichael Ellerman2006-01-08
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This patch merges, to some extent, the PPC32 and PPC64 kexec implementations. We adopt the PPC32 approach of having ppc_md callbacks for the kexec functions. The current PPC64 implementation becomes the "default" implementation for PPC64 which platforms can select if they need no special treatment. I've added these default callbacks to pseries/maple/cell/powermac, this means iSeries no longer supports kexec - but it never worked anyway. I've renamed PPC32's machine_kexec_simple to default_machine_kexec, inline with PPC64. Judging by the comments it might be better named machine_kexec_non_of, or something, but at the moment it's the only implementation for PPC32 so it's the "default". Kexec requires machine_shutdown(), which is in machine_kexec.c on PPC32, but we already have in setup-common.c on powerpc. All this does is call ppc_md.nvram_sync, which only powermac implements, so instead make machine_shutdown a ppc_md member and have it call core99_nvram_sync directly on powermac. I've also stuck relocate_kernel.S into misc_32.S for powerpc. Built for ARCH=ppc, and 32 & 64 bit ARCH=powerpc, with KEXEC=y/n. Booted on P5 LPAR and successfully kexec'ed. Should apply on top of 493f25ef4087395891c99fcfe2c72e62e293e89f. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] PPC_PREP: remove unneeded exportsAdrian Bunk2006-01-08
| | | | | | | | | This patch removes the EXPORT_SYMBOL'ed but completely unused variable ucSystemType and removes the unneeded EXPORT_SYMBOL(_prep_type). Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Tom Rini <trini@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge master.kernel.org:/home/rmk/linux-2.6-armLinus Torvalds2006-01-07
|\
| * [ARM] byteorder.h needs linux/compiler.hRussell King2006-01-07
| | | | | | | | Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * [ARM] Move asm/hardware/clock.h to linux/clk.hRussell King2006-01-07
| | | | | | | | | | | | | | This is needs to be visible to other architectures using the AMBA bus and peripherals. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * Merge with Linus' kernel.Russell King2006-01-07
| |\
| * | [ARM] Move AMBA include files to include/linux/amba/Russell King2006-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | Since the ARM AMBA bus is used on MIPS as well as ARM, we need to make the bus available for other architectures to use. Move the AMBA include files from include/asm-arm/hardware/ to include/linux/amba/ Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3239/1: Add ARM optimised swab32Andre McCurdy2006-01-07
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Andre McCurdy Replaces generic swab32 routine with a more ARM friendly version. Reduces kernel text size by approx 1200 bytes when compiled with 3.4.4 and approx 2400 bytes with 4.0.2 Probably some performance benefit as well. Signed-off-by: Andre McCurdy <armccurdy@yahoo.co.uk> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3206/1: Modifications to the bus arbiter controller for the Intel PXA27xJared Hulbert2006-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Jared Hulbert The following patch changes the bus arbiter controller settings for the Intel PXA27x Application Processor Family. Up to 5% better video performance. It parks the bus on the core while not in use and sets the arbitration for other bus items. The patch only applies changes to the Intel Mainstone development platform. This patch is not compatible with preproduction Intel PXA27x silicon. This patch is based on the Intel Linux Preview Kit released to the public on 25 Feb. 2005 found at ftp://ftp.arm.linux.org.uk/pub/linux/arm/people/xscale/mainstone/02-25-2005/. Signed-off-by: Justin A Treon <justin_treon@yahoo.com> Signed-off-by: Jared Hulbert <jaredeh@gmail.com> Signed-off-by: Nicolas Pitre <nico@cam.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3226/1: IXP4xx runtime expansion bus window size configurationDeepak Saxena2006-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Deepak Saxena The expansion bus on the IXP46x NPU can be configured for either 32MiB or 16MiB windows and changing the configuration causes the base address for each chip select for each region to change. Because of this, we cannot hardcode the physical base as we currently do. This patch checks the expansion bus configuration registers at runtime to determine the appropriate window size. Note that this requires that the bootloader already configured the device sizes appropriately, but I feel that is valid assumption to make as the bootloader must configure and access the flash window, the output display (LCD, LEDs, etc) window, and other expansion bus devices. Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3228/1: SharpSL: Move PM code to arch/arm/commonRichard Purdie2006-01-05
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Richard Purdie This patch moves a large chunk of the sharpsl_pm driver to arch/arm/common so that it can be reused on other devices such as the SL-5500 (collie). It also abstracts some functions from the core into the machine and platform specific parts of the driver to aid reuse. Signed-off-by: Richard Purdie <rpurdie@rpsys.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3225/1: add symbolic names for enp2611 gpio interruptsLennert Buytenhek2006-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Add symbolic names for the five ixp2400 GPIO lines on the enp2611 that are used as interrupts. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3224/1: add masked thread interrupt status registers for ixp2000Lennert Buytenhek2006-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek In its interrupt handler, the (NAPI) ixp2000 netdev driver needs to use the masked thread interrupt status register (instead of the raw one) to prevent scheduling polling when polling is already running when a TXdone interrupt comes in. The definitions for the masked status registers were not in yet, so this patch adds them. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3223/1: remove ixdp2x01 cs89x0 hackLennert Buytenhek2006-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Patch from Lennert Buytenhek Remove the ixdp2x01 cs89x0 hack from ixp2000's io implementation. Since the cs89x0 driver has been made properly aware of the odd way the cs89x0 is hooked up on the ixdp2x01, we don't need this hack anymore. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| * | [ARM] 3218/1: PAGE_SHIFT undeclared in arch-ixp4xx/memory.h (adjust_zones ↵Rod Whitby2006-01-04
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | moved out of line) Patch from Rod Whitby PAGE_SHIFT is undeclared in include/asm-arm/arch-ixp4xx/memory.h, identified by the following kernel compilation error: CC [M] sound/core/memory.o In file included from include/asm/memory.h:27, from include/asm/io.h:28, from sound/core/memory.c:24: include/asm/arch/memory.h: In function `__arch_adjust_zones': include/asm/arch/memory.h:28: error: `PAGE_SHIFT' undeclared (first use in this function) This patch replaces my previous attempt at fixing this problem (Patch 3214/1) and is based on the following feedback: Russell King wrote: > The error you see came up on SA1100. The best solution was to move > the __arch_adjust_zones() function out of line. I suggest ixp4xx > does the same. I have moved the function out of line into arch/arm/mach-ixp4xx/common-pci.c as suggested. Signed-off-by: Rod Whitby <rod@whitby.id.au> Signed-off-by: Deepak Saxena <dsaxena@plexity.net> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
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