- 15 Mar, 2011 1 commit
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Kumar Gala authored
If the spin table is located in the linear mapping (which can happen if we have 4G or more of memory) we need to access the spin table via a cacheable coherent mapping like we do on ppc32 (and do explicit cache flush). See the following commit for the ppc32 version of this issue: commit d1d47ec6 Author: Peter Tyser <ptyser@xes-inc.com> Date: Fri Dec 18 16:50:37 2009 -0600 powerpc/85xx: Fix SMP when "cpu-release-addr" is in lowmem Signed-off-by:
Kumar Gala <galak@kernel.crashing.org>
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- 11 Mar, 2011 1 commit
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Nishanth Aravamudan authored
On upcoming hardware, we have a PCI adapter with two functions, one of which uses MSI and the other uses MSI-X. This adapter, when MSI is disabled using the "old" firmware interface (RTAS_CHANGE_FN), still signals an MSI-X interrupt and triggers an EEH. We are working with the vendor to ensure that the hardware is not at fault, but if we use the "new" interface (RTAS_CHANGE_MSI_FN) to disable MSI, we also automatically disable MSI-X and the adapter does not appear to signal any stray MSI-X interrupt. Signed-off-by:
Nishanth Aravamudan <nacc@us.ibm.com> Acked-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
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- 10 Mar, 2011 28 commits
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Lennert Buytenhek authored
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Lennert Buytenhek <buytenh@secretlab.ca> Acked-by:
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- 04 Mar, 2011 4 commits
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Nishanth Aravamudan authored
If firmware allows us to map all of a partition's memory for DMA on a particular bridge, create a 1:1 mapping of that memory. Add hooks for dealing with hotplug events. Dynamic DMA windows can use larger than the default page size, and we use the largest one possible. Signed-off-by:
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Tseng-Hui (Frank) Lin authored
Move SPRN_PID declearations in various locations into one place. Signed-off-by:
Tseng-Hui (Frank) Lin <thlin@linux.vnet.ibm.com> Signed-off-by:
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Jim Keniston authored
Create the lnx,oops-log NVRAM partition, and capture the end of the printk buffer in it when there's an oops or panic. If we can't create the lnx,oops-log partition, capture the oops/panic report in ibm,rtas-log. Signed-off-by:
Jim Keniston <jkenisto@us.ibm.com> Signed-off-by:
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Jim Keniston authored
Adapt the functions used to create and write to the RTAS-log partition to work with any OS-type partition. Signed-off-by:
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- 02 Mar, 2011 6 commits
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Scott Wood authored
memblock_enforce_memory_limit() takes the desired maximum quantity of memory to end up with, not an address above which memory will not be used. Signed-off-by:
Scott Wood <scottwood@freescale.com> Signed-off-by:
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Benjamin Herrenschmidt authored
The HVCS driver, for those who don't know, is a driver for the "server" side of the IBM virtual terminal mechanism allowing Linux partitions to act as terminal servers under IBM PowerVM hypervisor. It's almost never used on the field at the moment. However, it's part of our configs, and in its current incarnation, will allocate the tty driver & major (with 64 minors) and create a kernel thread whether it's used or not, ie, whether the hypervisor did put a virtual terminal server device node in the partition or not (or whether running on a pseries machine or not even). This in turns causes modern distro's udev's to start trying to open all those 64 minors at boot, which, since they aren't linked to anything, causes the driver to spew errors in the kernel log for each of them. Not nice. This moves all that initialization to a function which is now only called the first time a terminal server virtual IO device is actually probed (that is almost never). There's still a _LOT_ of cleanup that can be done in this driver, some simple (almost all printk's statements in there shall either just be removed or in some case turned into better written & more informative messages, including using the dev_* variants etc...). This is left as an exercise for whoever actually cares about that driver. One could also try to be smart and dispose of all the tty related resources when the last instance of the VIO server device is removed (Hotplug anybody ?). Signed-off-by: -
Paul E. McKenney authored
The rtas_event_scan() function uses smp_processor_id() to select a starting point in cpu_online_mask, and does so under the protection of get_online_cpus(). This might not select the current processor in any case, so switch to raw_smp_processor_id(). Signed-off-by:
Paul E. McKenney <paulmck@linux.vnet.ibm.com> Signed-off-by:
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Justin Mattock authored
The patch below removes an extra "l" in the word. Signed-off-by:
Justin P. Mattock <justinmattock@gmail.com> Signed-off-by:
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Grant Likely authored
The following warning was seen building rack-meter.c WARNING: drivers/built-in.o(.text+0xac784): Section mismatch in reference from the function rackmeter_shutdown() to the function .devexit.text:rackmeter_stop_cpu_sniffer() The function rackmeter_shutdown() references a function in an exit section. Often the function rackmeter_stop_cpu_sniffer() has valid usage outside the exit section and the fix is to remove the __devexit annotation of rackmeter_stop_cpu_sniffer. This patch resolves the warning by removing the __devexit annotation from rackmeter_stop_cpu_sniffer(). Signed-off-by:
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Anton Blanchard authored
A number of drivers are using pgprot_writecombine() to enable write combining on userspace mappings. Implement it on powerpc. Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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