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2006-01-12Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds
Fix up delete/modify conflict of arch/ppc/kernel/process.c by hand (it's gone, gone, gone). Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] m68k: kill mach_floppy_setup, convert to proper __setup() in driversAl Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] m68k: namespace pollution fix (custom->amiga_custom)Al Viro
in amigahw.h custom renamed to amiga_custom, in drivers with few instances the same replacement, in the rest - #define custom amiga_custom in driver itself Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Cc: Roman Zippel <zippel@linux-m68k.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] powerpc: task_stack_page()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] powerpc: task_thread_info()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12[PATCH] scheduler cache-hot-autodetectakpm@osdl.org
) From: Ingo Molnar <mingo@elte.hu> This is the latest version of the scheduler cache-hot-auto-tune patch. The first problem was that detection time scaled with O(N^2), which is unacceptable on larger SMP and NUMA systems. To solve this: - I've added a 'domain distance' function, which is used to cache measurement results. Each distance is only measured once. This means that e.g. on NUMA distances of 0, 1 and 2 might be measured, on HT distances 0 and 1, and on SMP distance 0 is measured. The code walks the domain tree to determine the distance, so it automatically follows whatever hierarchy an architecture sets up. This cuts down on the boot time significantly and removes the O(N^2) limit. The only assumption is that migration costs can be expressed as a function of domain distance - this covers the overwhelming majority of existing systems, and is a good guess even for more assymetric systems. [ People hacking systems that have assymetries that break this assumption (e.g. different CPU speeds) should experiment a bit with the cpu_distance() function. Adding a ->migration_distance factor to the domain structure would be one possible solution - but lets first see the problem systems, if they exist at all. Lets not overdesign. ] Another problem was that only a single cache-size was used for measuring the cost of migration, and most architectures didnt set that variable up. Furthermore, a single cache-size does not fit NUMA hierarchies with L3 caches and does not fit HT setups, where different CPUs will often have different 'effective cache sizes'. To solve this problem: - Instead of relying on a single cache-size provided by the platform and sticking to it, the code now auto-detects the 'effective migration cost' between two measured CPUs, via iterating through a wide range of cachesizes. The code searches for the maximum migration cost, which occurs when the working set of the test-workload falls just below the 'effective cache size'. I.e. real-life optimized search is done for the maximum migration cost, between two real CPUs. This, amongst other things, has the positive effect hat if e.g. two CPUs share a L2/L3 cache, a different (and accurate) migration cost will be found than between two CPUs on the same system that dont share any caches. (The reliable measurement of migration costs is tricky - see the source for details.) Furthermore i've added various boot-time options to override/tune migration behavior. Firstly, there's a blanket override for autodetection: migration_cost=1000,2000,3000 will override the depth 0/1/2 values with 1msec/2msec/3msec values. Secondly, there's a global factor that can be used to increase (or decrease) the autodetected values: migration_factor=120 will increase the autodetected values by 20%. This option is useful to tune things in a workload-dependent way - e.g. if a workload is cache-insensitive then CPU utilization can be maximized by specifying migration_factor=0. I've tested the autodetection code quite extensively on x86, on 3 P3/Xeon/2MB, and the autodetected values look pretty good: Dual Celeron (128K L2 cache): --------------------- migration cost matrix (max_cache_size: 131072, cpu: 467 MHz): --------------------- [00] [01] [00]: - 1.7(1) [01]: 1.7(1) - --------------------- cacheflush times [2]: 0.0 (0) 1.7 (1784008) --------------------- Here the slow memory subsystem dominates system performance, and even though caches are small, the migration cost is 1.7 msecs. Dual HT P4 (512K L2 cache): --------------------- migration cost matrix (max_cache_size: 524288, cpu: 2379 MHz): --------------------- [00] [01] [02] [03] [00]: - 0.4(1) 0.0(0) 0.4(1) [01]: 0.4(1) - 0.4(1) 0.0(0) [02]: 0.0(0) 0.4(1) - 0.4(1) [03]: 0.4(1) 0.0(0) 0.4(1) - --------------------- cacheflush times [2]: 0.0 (33900) 0.4 (448514) --------------------- Here it can be seen that there is no migration cost between two HT siblings (CPU#0/2 and CPU#1/3 are separate physical CPUs). A fast memory system makes inter-physical-CPU migration pretty cheap: 0.4 msecs. 8-way P3/Xeon [2MB L2 cache]: --------------------- migration cost matrix (max_cache_size: 2097152, cpu: 700 MHz): --------------------- [00] [01] [02] [03] [04] [05] [06] [07] [00]: - 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) [01]: 19.2(1) - 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) [02]: 19.2(1) 19.2(1) - 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) [03]: 19.2(1) 19.2(1) 19.2(1) - 19.2(1) 19.2(1) 19.2(1) 19.2(1) [04]: 19.2(1) 19.2(1) 19.2(1) 19.2(1) - 19.2(1) 19.2(1) 19.2(1) [05]: 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) - 19.2(1) 19.2(1) [06]: 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) - 19.2(1) [07]: 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) 19.2(1) - --------------------- cacheflush times [2]: 0.0 (0) 19.2 (19281756) --------------------- This one has huge caches and a relatively slow memory subsystem - so the migration cost is 19 msecs. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Ashok Raj <ashok.raj@intel.com> Signed-off-by: Ken Chen <kenneth.w.chen@intel.com> Cc: <wilder@us.ibm.com> Signed-off-by: John Hawkes <hawkes@sgi.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-12powerpc: make ARCH=ppc use arch/powerpc/kernel/process.cPaul Mackerras
Commit 5388fb1025443ec223ba556b10efc4c5f83f8682 made signal_32.c use discard_lazy_cpu_state, which broke ARCH=ppc because that uses the common signal_32.c but has its own process.c. Make ARCH=ppc use the common process.c to fix this and to reduce the amount of duplicated code. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-11[PATCH] capable/capability.h (arch/)Randy Dunlap
arch: Use <linux/capability.h> where capable() is used. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-11[PATCH] powerpc: Updated Kconfig and Makefiles for 83xx supportKumar Gala
Updated Kconfig & Makefiles in prep for adding support for the Freescale MPC83xx family of processors to arch/powerpc. Moved around some config options that are more globally applicable to other PowerPC processors. Added a temporary config option (83xx) to match existing arch/ppc support for the MPC83xx line. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-10Merge ssh://master.kernel.org/pub/scm/linux/kernel/git/sam/kbuildLinus Torvalds
Fix up some trivial conflicts in {i386|ia64}/Makefile
2006-01-10[PATCH] kdump: dynamic per cpu allocation of memory for saving cpu registersVivek Goyal
- In case of system crash, current state of cpu registers is saved in memory in elf note format. So far memory for storing elf notes was being allocated statically for NR_CPUS. - This patch introduces dynamic allocation of memory for storing elf notes. It uses alloc_percpu() interface. This should lead to better memory usage. - Introduced based on Andi Kleen's and Eric W. Biederman's suggestions. - This patch also moves memory allocation for elf notes from architecture dependent portion to architecture independent portion. Now crash_notes is architecture independent. The whole idea is that size of memory to be allocated per cpu (MAX_NOTE_BYTES) can be architecture dependent and allocation of this memory can be architecture independent. Signed-off-by: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-09[PATCH] PCI: pci_find_device remove (ppc/platforms/85xx/mpc85xx_cds_common.c)Jiri Slaby
Signed-off-by: Jiri Slaby <xslaby@fi.muni.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-01-09[PATCH] PCI: pci_find_device remove (ppc/kernel/pci.c)Jiri Slaby
Signed-off-by: Jiri Slaby <xslaby@fi.muni.cz> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> arch/ppc/kernel/pci.c | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-)
2006-01-09Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds
2006-01-09[PATCH] ppc32: Put cache flush routines back into .relocate_code sectionPaul Janzen
In 2.6.14, we had the following definition of _GLOBAL() in include/asm-ppc/processor.h: #define _GLOBAL(n)\ .stabs __stringify(n:F-1),N_FUN,0,0,n;\ .globl n;\ n: In 2.6.15, as part of the great powerpc merge, we moved this definition to include/asm-powerpc/ppc_asm.h, where it appears (to 32-bit code) as: #define _GLOBAL(n) \ .text; \ .stabs __stringify(n:F-1),N_FUN,0,0,n;\ .globl n; \ n: Mostly, this is fine. However, we also have the following, in arch/ppc/boot/common/util.S: .section ".relocate_code","xa" [...] _GLOBAL(flush_instruction_cache) [...] _GLOBAL(flush_data_cache) [...] The addition of the .text section definition in the definition of _GLOBAL overrides the .relocate_code section definition. As a result, these two functions don't end up in .relocate_code, so they don't get relocated correctly, and the boot fails. There's another suspicious-looking usage at kernel/swsusp.S:37 that someone should look into. I did not exhaustively search the source tree, though. The following is the minimal patch that fixes the immediate problem. I could easily be convinced that the _GLOBAL definition should be modified to remove the ".text;" line either instead of, or in addition to, this fix. Signed-off-by: Paul Janzen <pcj@linux.sez.to> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-08[PATCH] tiny: Make *[ug]id16 support optionalMatt Mackall
Configurable 16-bit UID and friends support This allows turning off the legacy 16 bit UID interfaces on embedded platforms. text data bss dec hex filename 3330172 529036 190556 4049764 3dcb64 vmlinux-baseline 3328268 529040 190556 4047864 3dc3f8 vmlinux From: Adrian Bunk <bunk@stusta.de> UID16 was accidentially disabled for !EMBEDDED. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-09[PATCH] powerpc: Fix compile problem in pci.c for ppc32Kumar Gala
pci_address_to_pio is missing a closing curly brace Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] powerpc: pci_address_to_pio fixBenjamin Herrenschmidt
This fixes pci_address_to_pio() to return an unsigned long (to be safe) and fixes a bug in the implementation that caused it to return a bogus IO port number Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] powerpc: Detect prefetchable windows in pci_process_bridge_OF_rangesKumar Gala
Added the ability to determine if an outbound window in the PCI host controller is for prefetchable memory and report it as such. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] ppc32: Add TQM85xx (8540/8541/8555/8560) board supportKumar Gala
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>
2006-01-09[PATCH] ppc: removed unused variable i from code.Otavio Salvador
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] powerpc: Update OF address parsersBenjamin Herrenschmidt
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>
2006-01-09[PATCH] ppc: Make ARCH=ppc build again with new syscall pathDavid Woodhouse
This makes ARCH=ppc build in your powerpc tree again, with the new syscall entry/exit path. Still doesn't actually boot on my Pegasos; the last thing I see is 'MMU:exit'. But at least it builds -- I'll look at why it doesn't boot later, so that I can see if the mv643xx_eth actually works with ARCH=ppc (it doesn't with ARCH=powerpc; two in every three packets I receive are offset by 4 bytes). Signed-off-by: David Woodhouse <dwmw2@infradead.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] ppc32: m8xx watchdog updateMarcelo Tosatti
This updates m8xx_wdt as follows: 1) Remove now obsolete fpos check in the write() function. The driver is currently non functional due to this bug. 2) Use in/out macros for register access. 3) Allows m8xx_wdt to use a kernel timer instead of the builtin RTC/PIT for keep-alive trigger (which is responsible for servicing the watchdog until an userspace application takes over). For instance Cyclades PRxK boards (MPC 855T based) have a non-functional internal RTC/PIT unit. Behaviour for boards with RTC/PIT is unchaged. 4) The last change required moving the RTCSC register setting code to a weak function which can be overriden by board specific files. Otherwise the timer init code trashes the register making it impossible for m8xx_wdt to detect the situation. Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] powerpc: Fix suboptimal uImage targetKumar Gala
Sam Ravnborg pointed out that calling if_changed was redundant in the rule since a prerequisite had to have changed for us to get there. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] powerpc: Unify udbg (#2)Benjamin Herrenschmidt
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>
2006-01-09[PATCH] powerpc: serial port discovery (#2)Benjamin Herrenschmidt
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>
2006-01-09[PATCH] spufs: The SPU file system, baseArnd Bergmann
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>
2006-01-09[PATCH] powerpc: moved ipic code to arch/powerpcKumar Gala
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>
2006-01-09[PATCH] powerpc: Merge kexecMichael Ellerman
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>
2006-01-09[PATCH] PPC_PREP: remove unneeded exportsAdrian Bunk
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>
2006-01-08kbuild: remove GCC_VERSIONSam Ravnborg
This was causing some ordering problems. Remove the up-front evaluation and just revaluate the compiler version each time we need it. (The up-front evaluation was problematic because some architectures modify the value of $(CC)). Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
2006-01-06[PATCH] ppc32: Re-add embed_config.c to ml300/ep405Peter Korsgaard
Commit 3e9e7c1d0b7a36fb8affb973a054c5098e27baa8 (ppc32: cleanup AMCC PPC40x eval boards to support U-Boot) broke the kernel for ML300 / EP405. It still compiles as there's a weak definition of the function in misc-embedded.c, but the kernel crashes as the bd_t fixup isn't performed. Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk> Cc: <stable@kernel.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06[PATCH] ppc32: Allows compilation of a MPC52xx kernel without PCISylvain Munaut
Some custom cards might not need PCI, without this patch, compilation fails. Signed-off-by: Roger Blofeld <blofeldus@yahoo.com> Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06[PATCH] ppc32: Fix MPC52xx PCI init in cas the bootloader didn't do itSylvain Munaut
We were counting on the bootloader to init some stuff, like get the bus out of reset and enable accesses. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06[PATCH] ppc32: Fix MPC52xx configuration space accessSylvain Munaut
This patch takes care of an errata of the MPC5200 by avoiding 32 bits access in type 1 configuration accesses. All others accesses are still 32 bits wide. It also adds some mb() since the simple out_be(...) are not sufficient in this case. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06[PATCH] ppc32: Remove __init qualifier from mpc52xx pci resources fixupsSylvain Munaut
The mpc52xx_pci_fixup_resources is not only called at init but also when there is a pci hotplug like when a cardbus card is plugged in. So that function is needed after init too. Thanks to Asier Llano Palacios for reporting this. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06[PATCH] ppc32: Fix static IO mapping for Freescale MPC52xxSylvain Munaut
The current iomapping used MBAR_SIZE for the size argument of io_block_mapping, resulting in a call to setbat with a size argument of 64k which is invalid. This patch correct this and maps the whole 0xf0000000->0xffffffff range so that devices on the local bus are also included in the BAT mapping. Thanks to Bernhard Kuhn from Metrowerks for pointing this out. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06[PATCH] ppc32: Remove useless file arch/ppc/platforms/mpc5200.cSylvain Munaut
That file is a left-over of the 'old' OCP model that should have been erased during the change to platform model but I forgot it ... Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06[PATCH] arch/ppc/kernel/idle.c: don't declare cpu variable in non-SMP kernelsOtavio Salvador
Disable declaration of cpu variable in default_idle function when building non-SMP kernels. Signed-off-by: Otavio Salvador <otavio@debian.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-01-06[PATCH] ppc32: remove "jumbo" member from ocp_func_emac_dataEugene Surovegin
Remove the not needed anymore "jumbo" member from ocp_func_emac_data. Jumbo frame support is handled by PPC4xx EMAC driver internally now. Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-20Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-mergeLinus Torvalds
2005-12-20[PATCH] powerpc: CPM2 interrupt handler failure after 100,000 interruptsEdson Seabra
The CPM2 interrupt handler does not return success to the IRQ subsystem, which causes it to kill the IRQ line after 100,000 interrupts. Signed-off-by: Edson Seabra <Edson.Seabra@cyclades.com> Signed-off-by: Marcelo Tosatti <marcelo.tosatti@cyclades.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-16[PATCH] ppc: ppc4xx_dma DMA_MODE_{READ,WRITE} fixAl Viro
DMA_MODE_{READ,WRITE} are declared in asm-powerpc/dma.h and their declarations there match the definitions. Old declarations in ppc4xx_dma.h are not right anymore (wrong type, to start with). Killed them, added include of asm/dma.h where needed. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-12[PATCH] ppc32: set smp_tb_synchronized on UP with SMP kernelJohannes Berg
ppc32 kernel, when built with CONFIG_SMP and booted on a single CPU machine, will not properly set smp_tb_synchronized, thus causing gettimeofday() to not use the HW timebase and to be limited to jiffy resolution. This, among others, causes unacceptable pauses when launching X.org. Signed-Off-By: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-12[PATCH] powerpc: Fix clock spreading setting on some powermacsBenjamin Herrenschmidt
The code that sets the clock spreading feature of the Intrepid ASIC must not be run on some machine models or those won't boot. This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-05ppc: Build in all three of powermac, PREP and CHRP supportPaul Mackerras
This reverts commit da0825fd201a03294dbf7f8f030676d608da122c, making it so that if you select CONFIG_PPC_MULTIPLATFORM you get support for PMAC, PREP and CHRP built in. The reason for not allowing PMAC, PREP and CHRP to be selected individually for ARCH=ppc is that there is too much interdependency between them in the platform support code. For example, CHRP uses the PMAC nvram code. Configuring with ARCH=powerpc does allow you to select support for PMAC and CHRP separately. Support for PREP is not there yet but should be there soon. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-12-01[PATCH] ppc32: fix treeboot image entrypointEugene Surovegin
Correctly specify treeboot based image entrypoint. Currently makefile uses $(ENTRYPOINT) which isn't defined anywhere. Each board port sets entrypoint-$(CONFIG_BOARD_NAME) instead. Without this patch I cannot boot Ocotea (PPC440GX eval board) anymore. I was getting random "OS panic" errors from OpenBIOS for a while, but with current kernel I get them all the time (probably because image became bigger). Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Acked-by: Tom Rini <trini@kernel.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-12-01[PATCH] ppc32: Fix incorrect PCI frequency valueVitaly Bordug
The time to wait after deasserting PCI_RST has been counted with incorrect value - this patch fixes the issue. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-29[PATCH] ppc: fix floating point register corruptionPaolo Galtieri
I recently discovered a bug on PPC which causes the floating point registers to get corrupted when CONFIG_PREEMPT=y. The problem occurred while running a multi threaded Java application that does floating point. The problem could be reproduced in anywhere from 2 to 6 hours. With the patch I have included below it ran for over a week without failure. Signed-off-by: Paolo Galtieri <pgaltieri@mvista.com> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Matt Porter <mporter@kernel.crashing.org> Cc: Tom Rini <trini@kernel.crashing.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>