- 03 Oct, 2007 21 commits
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Cyrill Gorcunov authored
Adds checking of create_proc_entry call to prevent possible NULL pointer usage. Signed-off-by:
Cyrill Gorcunov <gorcunov@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Kumar Gala <galak@gate.crashing.org> Cc: Brian Waite <waite@skycomputers.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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Cyrill Gorcunov authored
Add adds checking for platform_get_resource() return code to prevent possible NULL pointer usage. Signed-off-by:
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Cyrill Gorcunov authored
Add #include <asm/io.h> directive to properly declare ioremap() and writel(). Signed-off-by:
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Cyrill Gorcunov authored
Remove useless spaces and adds some empty lines to make code more readable. Also marker for printk is added. Signed-off-by:
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Roland McGrath authored
This keeps an unstripped copy of the vDSO images built before they are stripped and embedded in the kernel. The unstripped copies get installed in $(MODLIB)/vdso/ by "make install". These files can be useful when they contain source-level debugging information. Signed-off-by:
Roland McGrath <roland@redhat.com> Cc: Sam Ravnborg <sam@ravnborg.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Mathieu Desnoyers authored
Fixes this powerpc build error in 2.6.22-rc6-mm1 for powerpc 64 with CONFIG_SWAP=n : In file included from include2/asm/tlb.h:60, from /home/compudj/git/linux-2.6-lttng/arch/powerpc/mm/init_64. c:56: /home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h: In function 'tlb_flush_mmu': /home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h:76: error: implicit declaration of function 'release_pages' /home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h: In function 'tlb_remove_page': /home/compudj/git/linux-2.6-lttng/include/asm-generic/tlb.h:105: error: implicit declaration of function 'page_cache_release' make[2]: *** [arch/powerpc/mm/init_64.o] Error 1 release_pages is declared in linux/pagemap.h, but cannot be included in linux/swap.h because of a sparc related comment: /* only sparc can not include linux/pagemap.h in this file * so leave page_cache_release and release_pages undeclared... */ #define free_page_and_swap_cache(page) \ page_cache_release(page) #define free_pages_and_swap_cache(pages, nr) \ release_pages((pages), (nr), 0); Signed-off-by:Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Hugh Dickins authored
Add CONFIG_DEBUG_PREEMPT support to ppc64: it was useful for testing get_paca() preemption. Cheat a little, just use debug_smp_processor_id() in the debug version of get_paca(): it contains all the right checks and reporting, though get_paca() doesn't really use smp_processor_id(). Use local_paca for what might have been called __raw_get_paca(). Silence harmless warnings from io.h and lparcfg.c with local_paca - it is okay for iseries_lparcfg_data to be referencing shared_proc with preemption enabled: all cpus should show the same value for shared_proc. Why do other architectures need TRACE_IRQFLAGS_SUPPORT for DEBUG_PREEMPT? I don't know, ppc64 appears to get along fine without it. Signed-off-by:
Hugh Dickins <hugh@veritas.com> Signed-off-by:
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Stephen Rothwell authored
This patch introduces zalloc_maybe_bootmem and uses it so that we don't have to mark a whole (largish) routine as __init_ref_ok. Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by:
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Mark A. Greer authored
Powerpc patches should be posted to linuxppc-dev@ozlabs.org, so modify MAINTAINERS to no longer reference linuxppc-embedded@ozlabs.org. Signed-off-by:
Mark A. Greer <mgreer@mvista.com> Signed-off-by:
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Scott Wood authored
On non-book-E, exceptions execute in real mode. If a fault happens that leads to a register dump, the kernel currently prints XXXXXXXX because it doesn't realize that PC is a physical address. This patch checks whether instruction address translation is turned on, and if not converts PC into a virtual address. Signed-off-by:
Scott Wood <scottwood@freescale.com> Acked-by:
Kumar Gala <galak@kernel.crashing.org> Acked-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Arnd Bergmann authored
The /proc/bus/pci/* files list PCI domain numbers only for devices that claim to be on a multi-domain system. The check for this is broken on powerpc, because the buid value is truncated to 32 bits. There is at least one machine (IBM QS21) that only uses the high-order bits of the buid, so the return value of pci_proc_domain() ends up being always zero, which makes /proc/bus/pci useless. Change the logic to always return '1' for a nonzero buid value. Signed-off-by:
Arnd Bergmann <arnd.bergmann@de.ibm.com> Acked-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by:
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Roland McGrath authored
This restores the CHECK_FULL_REGS sanity check to every place that can access the nonvolatile GPRs for ptrace. This is already done for native-bitwidth PTRACE_PEEKUSR, but was omitted for many other cases (32-bit ptrace, PTRACE_GETREGS, etc.); I think there may have been more uniform checks before that were lost in the recent cleanup of GETREGS et al. Signed-off-by:
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Scott Wood authored
This is a library that board code can use to extract information from the PlanetCore configuration keys. PlanetCore is used on various boards from Embedded Planet. Signed-off-by:
David Gibson <david@gibson.dropbear.id.au> Signed-off-by:
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Scott Wood authored
This allows callers to set addresses one at a time when that would be more convenient. Signed-off-by:
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Milton Miller authored
Call gunzip_partial to calculate the remaining length and copy the data to the user buffer. This makes it shorter and reduces duplication. Signed-off-by:
Milton Miller <miltonm@bga.com> Acked-by:
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Milton Miller authored
Record the number of header bytes skipped in the total bytes read field. This is needed for the initramfs parsing code to find the end of the zip file. Signed-off-by:
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Stephen Rothwell authored
Signed-off-by:
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Stephen Rothwell authored
iSeries_vio_dev was already statically initialised and we can remove one set of #ifdef CONFIG_PPC_ISERIES guards. Signed-off-by:
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Stephen Rothwell authored
As it just adds noise to the boot messages. Signed-off-by:
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Tony Breeds authored
Signed-off-by:
Tony Breeds <tony@bakeyournoodle.com> Signed-off-by:
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Tony Breeds authored
With these functions implemented we cooperate better with the generic timekeeping code. This obsoletes the need for the timer sysdev as a bonus. Signed-off-by:
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- 02 Oct, 2007 12 commits
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Ed Swarthout authored
The entries are only 32-bit, so restrict the virtual address to stay below 0xffff_ffff. With KERNELBASE set to 0xc000_0000, this in effect restricts access to the first 1GB of real memory. Make setup_kcore conditional on CONFIG_PROC_KCORE for both 32/64. Signed-off-by:
Ed Swarthout <Ed.Swarthout@freescale.com> Signed-off-by:
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Paul Mackerras authored
Currently the prep_defconfig in arch/ppc won't build due to swsusp being broken. This patch avoids the problem by essentially disabling all power management on those platforms left in arch/ppc. Signed-off-by: -
Stephen Rothwell authored
Linus made this suggestion for the x86 merge and this starts the process for powerpc. We assume that CONFIG_PPC64 implies CONFIG_PPC_MERGE and CONFIG_PPC_STD_MMU_32 implies CONFIG_PPC_STD_MMU. Signed-off-by:
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Olof Johansson authored
Move out the old-style exception parsers to a separate function, and don't call it on platforms that have a platform-specific handler. It would make sense to move out the generic versions into their platforms instead, but that can be done gradually down the road. Signed-off-by:
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Domen Puncer authored
This provides an implementation of the <linux/clk.h> interface for arch/powerpc using a set of function pointers in clk_functions. Platforms that want to support this interface should fill clk_functions and select CONFIG_PPC_CLOCK in Kconfig. Signed-off-by:
Domen Puncer <domen.puncer@telargo.com> Signed-off-by:
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Michael Ellerman authored
In the MPIC U3 MSI code, we call u3msi_compose_msi_msg() once for each MSI. This is overkill, as the address is per pci device, not per MSI. So setup the address once, and just set the data per MSI. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Acked-by:
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Michael Ellerman authored
Currently rtas_change_msi() returns either the error code from RTAS, or if the RTAS call succeeded the number of irqs that were configured by RTAS. This makes checking the return value more complicated than it needs to be. Instead, have rtas_change_msi() check that the number of irqs configured by RTAS is equal to what we requested - and return an error otherwise. This makes the return semantics match the usual 0 for success, something else for error. Signed-off-by:
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Michael Ellerman authored
rtas_setup_msi_irqs() doesn't need to call teardown() itself, the generic code will do this for us as long as we return a non-zero value. Signed-off-by:
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Michael Ellerman authored
u3msi_setup_msi_irqs() doesn't need to call teardown() itself, the generic code will do this for us as long as we return a non zero value. Signed-off-by:
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Michael Ellerman authored
pci_device_to_OF_node() returns the device node attached to a PCI device, but doesn't actually grab a reference - we need to do it ourselves. Signed-off-by:
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Arnd Bergmann authored
The various embedded 6xx systems can easily coexist in one kernel together with the other 6xx based systems, so there is no strict reason to keep them separate. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Linas Vepstas authored
It seems that some versions of firmware will report a device node status as the string "okay". As we are not expecting this string, the device node will be ignored by the EEH subsystem. Which means EEH will not be enabled. When EEH is not enabled, PCI errors will be converted into Machine Check exceptions, and we'll have a very unhappy system. Signed-off-by:
Linas Vepstas <linas@austin.ibm.com> Signed-off-by:
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- 22 Sep, 2007 7 commits
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Emil Medve authored
These are the symptom error messages: CC arch/powerpc/kernel/setup_32.o In file included from include/linux/blkdev.h:17, from include/linux/ide.h:13, from arch/powerpc/kernel/setup_32.c:13: include/linux/bsg.h:67: warning: 'struct request_queue' declared inside parameter list include/linux/bsg.h:67: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/bsg.h:71: warning: 'struct request_queue' declared inside parameter list In file included from arch/powerpc/kernel/setup_32.c:13: include/linux/ide.h:857: error: field 'wrq' has incomplete type CC arch/powerpc/kernel/ppc_ksyms.o In file included from include/linux/blkdev.h:17, from include/linux/ide.h:13, from arch/powerpc/kernel/ppc_ksyms.c:15: include/linux/bsg.h:67: warning: 'struct request_queue' declared inside parameter list include/linux/bsg.h:67: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/bsg.h:71: warning: 'struct request_queue' declared inside parameter list In file included from arch/powerpc/kernel/ppc_ksyms.c:15: include/linux/ide.h:857: error: field 'wrq' has incomplete type The fix tries to use the smallest scope CONFIG_* symbols that will fix the build problem. In this case <linux/ide.h> needs to be included only if IDE=y or IDE=m were selected. Also, ppc_ide_md is needed only if BLK_DEV_IDE=y or BLK_DEV_IDE=m Moved the EXPORT_SYMBOL(ppc_ide_md) from ppc_ksysms.c next to its declaration in setup_32.c which made <linux/ide.h> not needed. With <linux/ide.h> gone from ppc_ksyms.c, <asm/cacheflush.h> is needed to address the following warnings and errors: CC arch/powerpc/kernel/ppc_ksyms.o arch/powerpc/kernel/ppc_ksyms.c:122: error: '__flush_icache_range' undeclared here (not in a function) arch/powerpc/kernel/ppc_ksyms.c:122: warning: type defaults to 'int' in declaration of '__flush_icache_range' arch/powerpc/kernel/ppc_ksyms.c:123: error: 'flush_dcache_range' undeclared here (not in a function) arch/powerpc/kernel/ppc_ksyms.c:123: warning: type defaults to 'int' in declaration of 'flush_dcache_range' Signed-off-by:Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by:
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Benjamin Herrenschmidt authored
Current kernels have a non-working platinumfb due to some resource management issues. This fixes it. Signed-off-by:
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Satyam Sharma authored
> ------------[ cut here ]------------ > Badness at arch/powerpc/kernel/smp.c:202 comes when smp_call_function_map() has been called with irqs disabled, which is illegal. However, there is a special case, the panic() codepath, when we do not want to warn about this -- warning at that time is pointless anyway, and only serves to scroll away the *real* cause of the panic and distracts from the real bug. * So let's extract the WARN_ON() from smp_call_function_map() into all its callers -- smp_call_function() and smp_call_function_single() * Also, introduce another caller of smp_call_function_map(), namely __smp_call_function() (and make smp_call_function() a wrapper over this) which does *not* warn about disabled irqs * Use this __smp_call_function() from the panic codepath's smp_send_stop() We also end having to move code of smp_send_stop() below the definition of __smp_call_function(). Signed-off-by:
Satyam Sharma <satyam@infradead.org> Signed-off-by:
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Olof Johansson authored
Hook up affinity-setting for U3/U4 MSI interrupt sources. Tested on Quad G5 with myri10ge. Signed-off-by:
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Arnd Bergmann authored
Since the PPE on cell is an in-order core, it suffers significantly from wrong instruction scheduling. This adds a Kconfig option that enables passing -mtune=cell to gcc in order to generate object code that runs well on cell. Signed-off-by:
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Jeremy Kerr authored
The cast to u32 * isn't required, of_get_property returns a void *. Signed-off-by:
Jeremy Kerr <jk@ozlabs.org> Signed-off-by:
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Tony Breeds authored
Make the define_machine() block for mpc885_ads more greppable and consistent with other examples in tree. Signed-off-by:
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