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2007-12-03Revert "[POWERPC] Fix RTAS os-term usage on kernel panic"Paul Mackerras
This reverts commit a2b51812a4dc5db09ab4d4638d4d8ed456e2457e. It turns out that this change caused some machines to fail to come back up when being rebooted, and generated an error in the hypervisor error log on some machines. The platform architecture (PAPR) is a little unclear on exactly when the RTAS ibm,os-term function should be called. Until that is clarified I'm reverting this commit. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-20[POWERPC] Fix RTAS os-term usage on kernel panicLinas Vepstas
The rtas_os_term() routine was being called at the wrong time. The actual rtas call "os-term" will not ever return, and so calling it from the panic notifier is too early. Instead, call it from the machine_reset() call. This splits the rtas_os_term() routine into two: one part to capture the kernel panic message, invoked during the panic notifier, and another part that is invoked during machine_reset(). Prior to this patch, the os-term call was never being made, because panic_timeout was always non-zero. Calling os-term helps keep the hypervisor happy! We have to keep the hypervisor happy to avoid service, dump and error reporting problems. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-19[POWERPC] pSeries: make pseries_defconfig minus PCI build againStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08[POWERPC] EEH: Make sure warning message is printedLinas Vepstas
Fix old buglet; a warning message should have been printed when a hardware reset takes too long. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08[POWERPC] EEH: Avoid crash on null deviceLinas Vepstas
Bugfix: avoid crash if there's no PCI device for a given openfirmware node. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08[POWERPC] EEH: Drivers that need reset trump othersLinas Vepstas
Bugfix: if a driver controlling one part of a multi-function PCI card has asked for a reset, honor that request above all others. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08[POWERPC] EEH: Clean up commentsLinas Vepstas
Clean up commentary, remove dead code. Signed-off-by Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08[POWERPC] Include udbg.h when using udbg_printfwill schmidt
This fixes the error error: implicit declaration of function "udbg_printf" We have a few spots where we reference udbg_printf() without #including udbg.h. These are within #ifdef DEBUG blocks, so unnoticed until we do a #define DEBUG or #define DEBUG_LOW nearby. Signed-off-by: Will Schmidt <will_schmidt@vnet.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-11-08[POWERPC] Read back MSI message in rtas_setup_msi_irqs() so restore worksMichael Ellerman
There are plans afoot to use pci_restore_msi_state() to restore MSI state after a device reset. In order for this to work for the RTAS MSI backend, we need to read back the MSI message from config space after it has been setup by firmware. This should be sufficient for restoring the MSI state after a device reset, however we will need to revisit this for suspend to disk if that is ever implemented on pseries. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Acked-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-19pid namespaces: define is_global_init() and is_container_init()Serge E. Hallyn
is_init() is an ambiguous name for the pid==1 check. Split it into is_global_init() and is_container_init(). A cgroup init has it's tsk->pid == 1. A global init also has it's tsk->pid == 1 and it's active pid namespace is the init_pid_ns. But rather than check the active pid namespace, compare the task structure with 'init_pid_ns.child_reaper', which is initialized during boot to the /sbin/init process and never changes. Changelog: 2.6.22-rc4-mm2-pidns1: - Use 'init_pid_ns.child_reaper' to determine if a given task is the global init (/sbin/init) process. This would improve performance and remove dependence on the task_pid(). 2.6.21-mm2-pidns2: - [Sukadev Bhattiprolu] Changed is_container_init() calls in {powerpc, ppc,avr32}/traps.c for the _exception() call to is_global_init(). This way, we kill only the cgroup if the cgroup's init has a bug rather than force a kernel panic. [akpm@linux-foundation.org: fix comment] [sukadev@us.ibm.com: Use is_global_init() in arch/m32r/mm/fault.c] [bunk@stusta.de: kernel/pid.c: remove unused exports] [sukadev@us.ibm.com: Fix capability.c to work with threaded init] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com> Acked-by: Pavel Emelianov <xemul@openvz.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Cedric Le Goater <clg@fr.ibm.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Herbert Poetzel <herbert@13thfloor.at> Cc: Kirill Korotaev <dev@sw.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-12[POWERPC] Use 1TB segmentsPaul Mackerras
This makes the kernel use 1TB segments for all kernel mappings and for user addresses of 1TB and above, on machines which support them (currently POWER5+, POWER6 and PA6T). We detect that the machine supports 1TB segments by looking at the ibm,processor-segment-sizes property in the device tree. We don't currently use 1TB segments for user addresses < 1T, since that would effectively prevent 32-bit processes from using huge pages unless we also had a way to revert to using 256MB segments. That would be possible but would involve extra complications (such as keeping track of which segment size was used when HPTEs were inserted) and is not addressed here. Parts of this patch were originally written by Ben Herrenschmidt. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Don't enable cpu hotplug on pSeries machines with MPICOlof Johansson
Don't allow cpu hotplug on systems lacking XICS interrupt controller (i.e. with an MPIC interrupt controller), since the current pSeries platform code is hardcoded for XICS. This works around the bug reported by Paul Mackerras where the disable_nonboot_cpus() call recently added to the shutdown path will cause an oops on older pSeries machines. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-11[POWERPC] Platforms shouldn't mess with ROOT_DEVGrant Likely
There is no good reason for board platform code to mess with the ROOT_DEV. Remove it from all in-tree platforms except powermac. Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03Merge branch 'linux-2.6' into for-2.6.24Paul Mackerras
2007-10-03[POWERPC] Fix panic in RTAS codeTony Breeds
Some older pSeries machines were panicking in pSeries_log_error because it was getting called before it was ready. This is a result of commit "[POWERPC] pseries: Fix jumbled no_logging flag." (79c0108d1b9db4864ab77b2a95dfa04f2dcf264c). This fixes it by explicitly enabling RTAS error logging when it has been initialized, and also makes the code clearer by renaming the "no_more_logging" variable to "logging_enabled". Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Simplify rtas_change_msi() error semanticsMichael Ellerman
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: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-03[POWERPC] Simplify error logic in rtas_setup_msi_irqs()Michael Ellerman
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: Michael Ellerman <michael@ellerman.id.au> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-10-02[POWERPC] pseries: device node status can be "ok" or "okay"Linas Vepstas
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: Paul Mackerras <paulus@samba.org>
2007-10-02[POWERPC] Fix xics set_affinity codeAnton Blanchard
On a POWER6 machine running 2.6.23-rc8 I sometimes see the following error: xics_set_affinity: No online cpus in the mask 00000000,00000000,00000000,00000001 for irq 20 In a desperate attempt to get a changelog entry in 2.6.23, I took a look into it. It turns out we are passing a real and not a virtual irq into get_irq_server. This works for the case where hwirq < NR_IRQS and we set virq = hwirq. In my case however hwirq = 590082 and we try and access irq_desc[590082], slightly past the end at 512 entries. Lucky we ship lots of memory with our machines. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-09-14[POWERPC] Add an optional device_node pointer to the irq_hostMichael Ellerman
The majority of irq_host implementations (3 out of 4) are associated with a device_node, and need to stash it somewhere. Rather than having it somewhere different for each host, add an optional device_node pointer to the irq_host structure. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] pseries: Remove dead EEH video codeLinas Vepstas
Remove dead code, and a misleading comment about EEH checking for video devices. The removed code is a left-over from the olden days where there was concern over how video devices worked in Linux. We are never going to go that way again, so kill this. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 17 ----------------- 1 file changed, 17 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] pseries: Eliminate global error_log_cnt variableLinas Vepstas
Eliminate the use of error_log_cnt as a global var shared across different directories. Pass it as a parameter instead. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- Respin of earlier patch, with the CONFIG_PSERIES junk removed from the header file. arch/powerpc/kernel/nvram_64.c | 10 +++++----- arch/powerpc/platforms/pseries/rtasd.c | 7 ++++--- include/asm-powerpc/nvram.h | 6 ++++-- 3 files changed, 13 insertions(+), 10 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] pseries: Fix jumbled no_logging flagLinas Vepstas
Get rid of the jumbled usage of the no_logging flag. Its use spans several directories, and is incorrectly/misleadingly documented. Instead, two changes: 1) nvram will accept error log as soon as its ready. 2) logging to nvram stops on the first fatal error reported. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/kernel/nvram_64.c | 8 -------- arch/powerpc/platforms/pseries/rtasd.c | 14 ++++++-------- 2 files changed, 6 insertions(+), 16 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] pseries: Simplify rtasd initializationLinas Vepstas
Simplify rtasd initialization code; this also fixes a buglet, where the /proc entries weren't being cleaned up in case of failure. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/rtasd.c | 53 +++++++++++---------------------- 1 file changed, 19 insertions(+), 34 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] pseries: Use rtas_token instead of hand-rolled codeLinas Vepstas
The rtas_token() call does the same thing as this hand-rolled code. This makes the code easier to read. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/rtasd.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] pseries: Avoid excess rtas_token callsLinas Vepstas
We don't need to look up the rtas event token once per cpu per second. This avoids some misc device-tree lookups and string ops and so provides some minor performance improvement. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- Revised commit-log message. arch/powerpc/platforms/pseries/rtasd.c | 15 +++++++++------ 1 file changed, 9 insertions(+), 6 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] Clean out a bunch of duplicate includesJesper Juhl
This removes several duplicate includes from arch/powerpc/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] EEH: Dump PCI bridge status on eventLinas Vepstas
Gather bridge-specific data on EEH events. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 27 ++++++++++++++++++++++++++- 1 file changed, 26 insertions(+), 1 deletion(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] EEH: Fix PCI bridge handling bugLinas Vepstas
The EEH code needs to ignore PCI bridges; sort-of. It was ignoring them in the wrong place, and thus failing to set up the PCI_DN(dn)->pcidev pointer. Imprudent dereferencing of this pointer would lead to a crash on cards with bridges. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh_cache.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-17[POWERPC] EEH: Tweak printk messageLinas Vepstas
Print return code to print message. Also fix whitespace. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-22[POWERPC] Fix future firmware feature fixups function failureMichael Neuling
Move firmware feature initialisation from pSeries_init_early to the earlier pSeries_probe_hypertas so they are initialised before firmware feature fixups are applied. Currently firmware feature sections are only used for iSeries which initialises the these features much earlier. This is a bug in waiting on pSeries. Also adds some whitespace fixups. Signed-off-by: Michael Neuling <mikey@neuling.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-07-16Merge branch 'merge' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (209 commits) [POWERPC] Create add_rtc() function to enable the RTC CMOS driver [POWERPC] Add H_ILLAN_ATTRIBUTES hcall number [POWERPC] xilinxfb: Parameterize xilinxfb platform device registration [POWERPC] Oprofile support for Power 5++ [POWERPC] Enable arbitary speed tty ioctls and split input/output speed [POWERPC] Make drivers/char/hvc_console.c:khvcd() static [POWERPC] Remove dead code for preventing pread() and pwrite() calls [POWERPC] Remove unnecessary #undef printk from prom.c [POWERPC] Fix typo in Ebony default DTS [POWERPC] Check for NULL ppc_md.init_IRQ() before calling [POWERPC] Remove extra return statement [POWERPC] pasemi: Don't auto-select CONFIG_EMBEDDED [POWERPC] pasemi: Rename platform [POWERPC] arch/powerpc/kernel/sysfs.c: Move NUMA exports [POWERPC] Add __read_mostly support for powerpc [POWERPC] Modify sched_clock() to make CONFIG_PRINTK_TIME more sane [POWERPC] Create a dummy zImage if no valid platform has been selected [POWERPC] PS3: Bootwrapper support. [POWERPC] powermac i2c: Use mutex [POWERPC] Schedule removal of arch/ppc ... Fixed up conflicts manually in: Documentation/feature-removal-schedule.txt arch/powerpc/kernel/pci_32.c arch/powerpc/kernel/pci_64.c include/asm-powerpc/pci.h and asked the powerpc people to double-check the result..
2007-07-15the wrong variable checked after request_irq()Al Viro
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-07-10[POWERPC] Generalise device_node flag interfaceMichael Ellerman
The struct device_node currently has a _flags variable, although it's only used for one flag - OF_DYNAMIC. Generalise the flag accessors so we can use them with other flags in future. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-25[POWERPC] Fix Kexec/Kdump for power6Sachin P. Sant
On Power machines supporting VRMA, Kexec/Kdump does not work. VRMA (virtual real-mode area) means that accesses with IR/DR = 0 (i.e. the MMU "off") actually still go through the hash table, using entries put there by the hypervisor. This means that when we clear out the hash table on kexec, we need to make sure these entries are left untouched. This also adds plpar_pte_read_raw() on the lines of plpar_pte_remove_raw(). Signed-off-by : Sachin Sant <sachinp@in.ibm.com> Signed-off-by : Mohan Kumar M <mohan@in.ibm.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-25[POWERPC] Fix interrupt distribution in ppc970Mohan Kumar M
In some of the PPC970 based systems, interrupt would be distributed to offline cpus also even when booted with "maxcpus=1". So check whether cpu online map and cpu present map are equal or not. If they are equal default_distrib_server is used as interrupt server otherwise boot cpu (default_server) used as interrupt server. In addition to this, if an interrupt is assigned to a specific cpu (ie smp affinity) and if that cpu is not online, the earlier code used to return the default_distrib_server as interrupt server. This introduces an additional parameter to the get_irq function, called strict_check. Based on this parameter, if the cpu is not online either default_distrib_server or -1 is returned. Signed-off-by: Mohan Kumar M <mohan@in.ibm.com> Cc: Michael Ellerman <michael@ellerman.id.au> Acked-by: Milton Miller <miltonm@bga.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-14[POWERPC] Donate idle CPU cycles on dedicated partitionsJake Moilanen
A Power6 can give up CPU cycles on a dedicated CPU (as opposed to a shared CPU) to other shared processors if the administrator asks for it (via the HMC). This enables that to work properly on P6. This just involves setting a bit in the CAS structure as well as the VPA. To donate cycles, a CPU has to have all SMT threads idle and have the donate bit set in the VPA. Then call H_CEDE. The reason why shared processors just aren't used is because dedicated CPUs are guaranteed an actual processor, yet the system is still able to increase the capacity of the shared CPU pool. Also rename the VPA's cpuctls_task_attrs field to a more accurate name. Signed-off-by: Jake Moilanen <moilanen@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-14[POWERPC] Rewrite IO allocation & mapping on powerpc64Benjamin Herrenschmidt
This rewrites pretty much from scratch the handling of MMIO and PIO space allocations on powerpc64. The main goals are: - Get rid of imalloc and use more common code where possible - Simplify the current mess so that PIO space is allocated and mapped in a single place for PCI bridges - Handle allocation constraints of PIO for all bridges including hot plugged ones within the 2GB space reserved for IO ports, so that devices on hotplugged busses will now work with drivers that assume IO ports fit in an int. - Cleanup and separate tracking of the ISA space in the reserved low 64K of IO space. No ISA -> Nothing mapped there. I booted a cell blade with IDE on PIO and MMIO and a dual G5 so far, that's it :-) With this patch, all allocations are done using the code in mm/vmalloc.c, though we use the low level __get_vm_area with explicit start/stop constraints in order to manage separate areas for vmalloc/vmap, ioremap, and PCI IOs. This greatly simplifies a lot of things, as you can see in the diffstat of that patch :-) A new pair of functions pcibios_map/unmap_io_space() now replace all of the previous code that used to manipulate PCI IOs space. The allocation is done at mapping time, which is now called from scan_phb's, just before the devices are probed (instead of after, which is by itself a bug fix). The only other caller is the PCI hotplug code for hot adding PCI-PCI bridges (slots). imalloc is gone, as is the "sub-allocation" thing, but I do beleive that hotplug should still work in the sense that the space allocation is always done by the PHB, but if you unmap a child bus of this PHB (which seems to be possible), then the code should properly tear down all the HPTE mappings for that area of the PHB allocated IO space. I now always reserve the first 64K of IO space for the bridge with the ISA bus on it. I have moved the code for tracking ISA in a separate file which should also make it smarter if we ever are capable of hot unplugging or re-plugging an ISA bridge. This should have a side effect on platforms like powermac where VGA IOs will no longer work. This is done on purpose though as they would have worked semi-randomly before. The idea at this point is to isolate drivers that might need to access those and fix them by providing a proper function to obtain an offset to the legacy IOs of a given bus. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-14[POWERPC] Tweak EEH copyright infoLinas Vepstas
Twiddle the copyright notices. Per current guidelines, the use of the (C) or (c) in source code is deprecated. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 6 +++++- arch/powerpc/platforms/pseries/eeh_cache.c | 3 ++- arch/powerpc/platforms/pseries/eeh_driver.c | 6 +++--- 3 files changed, 10 insertions(+), 5 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-14[POWERPC] Remove dead EEH codeLinas Vepstas
Remove some dead code. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-14[POWERPC] Show EEH per-device false positivesLinas Vepstas
Track and report the number of times we read an all-1s value (0xff, 0xffff or 0xffffffff) from each device which is valid data, not indicating EEH isolation. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 5 +++++ arch/powerpc/platforms/pseries/eeh_sysfs.c | 3 +++ include/asm-powerpc/pci-bridge.h | 1 + 3 files changed, 9 insertions(+) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-14[POWERPC] Add EEH sysfs blinkenlightsLinas Vepstas
Add sysfs blinkenlights for EEH statistics. Shuffle the eeh_add_device_tree() call so that it appears in the correct sequence. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/Makefile | 2 arch/powerpc/platforms/pseries/eeh.c | 4 + arch/powerpc/platforms/pseries/eeh_cache.c | 2 arch/powerpc/platforms/pseries/eeh_sysfs.c | 84 +++++++++++++++++++++++++++++ arch/powerpc/platforms/pseries/pci_dlpar.c | 7 +- include/asm-powerpc/ppc-pci.h | 3 + 6 files changed, 98 insertions(+), 4 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-02[POWERPC] Fix compile warning in pseries xics codeMichael Neuling
In 616883df78bd4b3fcdb6ddc39bd3d4cb902bfa32 request_irq was marked as __must_check so we must... er... check it. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-17[POWERPC] Fix warning on UPStephen Rothwell
arch/powerpc/platforms/pseries/pseries.h:24: warning: return type defaults to 'int' arch/powerpc/platforms/pseries/pseries.h:25: warning: return type defaults to 'int' arch/powerpc/platforms/pseries/pseries.h:24: warning: control reaches end of non-void function arch/powerpc/platforms/pseries/pseries.h:25: warning: control reaches end of non-void function Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-10[POWERPC] Fix compile error with kexec and CONFIG_SMP=nPaul Mackerras
Commit 2f4dfe206a2fc07099dfad77a8ea2f4b4ae2140f moved the definition of hard_smp_processor_id() for the UP case from include/linux/smp.h to include/asm/smp.h. However, include/linux/smp.h only includes include/asm/smp.h in the SMP case, so code that wants to use hard_smp_processor_id() has to include <asm/smp.h> explicitly to be sure of getting the definition. Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-10[POWERPC] Minor pSeries IOMMU debug cleanupMichael Neuling
pci is not initialized before being used here, so this debug print is bogus at the current location. Move it to where it makes sense. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-10[POWERPC] Assorted janitorial EEH cleanupsLinas Vepstas
Assorted minor cleanups to EEH code; -- use literals, use kerneldoc format. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> ---- arch/powerpc/platforms/pseries/eeh.c | 13 ++++++++++--- arch/powerpc/platforms/pseries/eeh_driver.c | 7 ++++--- include/asm-powerpc/ppc-pci.h | 18 +++++++++++++++--- 3 files changed, 29 insertions(+), 9 deletions(-) Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-09[POWERPC] EEH: log all PCI-X and PCI-E AER registersLinas Vepstas
When an EEH event is detected, and after the device driver has been notified, but before the device is reset, enable MMIO to the adapter, and grab the contents of the PCI status and command registers, the PCI-X status and command, and the PCI-E capability 10 and AER registers. Pass these up to the RTAS error log, and also printk them. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-09[POWERPC] EEH: capture and log pci state on errorLinas Vepstas
If an EEH event is observed, capture PCI config space info about the device, wrap it up and pass it to the event logger. This pach just slots in the basic logging function. A later patch will provide for more through data gathering. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-05-09[POWERPC] EEH: Split up long error msgLinas Vepstas
Make some minor adjustments to the EEH error messages. Signed-off-by: Linas Vepstas <linas@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>