- 09 Dec, 2010 11 commits
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Sonny Rao authored
Remove stale declaration of setup_pci_ptrs, aparently from ppc before 2.4.0 Remove #ifdef around struct existance delcaration Fix spelling of "linear" Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Sonny Rao <sonnyrao@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Sonny Rao authored
Fix head_64.S so that we can build a relocatable kernel that isn't necessarily a crash-dump kernel Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Sonny Rao <sonnyrao@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Anton Blanchard authored
We now allow interrupt stacks anywhere in the first segment which can be 256M or 1TB. Fix the comment. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Anton Blanchard authored
The popcnt instructions went into binutils relatively recently. As with a number of other instructions, create macros and hardcode them. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
iommu_table_setparms_lpar needs either the phb or the subbusnumber (not both), pass the phb to make it similar to iommu_table_setparms. Note: In cases where a caller was passing bus->number previously to iommu_table_setparms_lpar() rather than phb->bus->number, this can lead to a different value in tbl->it_busno. The only example of this was the removed pci_dma_dev_setup_pSeriesLP(), removed in "ppc/iommu: remove unneeded pci_dma_dev_setup_pSeriesLP". [BenH: You updated only one of the two callers. Fixed that for you] Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Nishanth Aravamudan authored
The block in pci_dma_dev_setup_pSeriesLP for dma_window == NULL can be removed because we will only teminate the loop if we had already allocated a iommu table for that node or we found a window. While there may be no window for the device, the intresting part is if we are reusing a table or creating it for the first device under it. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Nishanth Aravamudan authored
The device tree root is never a pci bus, and will not have a PCI_DN(pdn), so the check for PCI_DN added in 650f7b3b makes the check for pdn->parent redundant and it can be removed. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Nishanth Aravamudan authored
The iommu_table pointer in the pci auxiliary struct of device_node has not been used by the iommu ops since the dma refactor of 12d04eef, however this code still uses it to find tables for dlpar. By only setting the PCI_DN iommu_table pointer on nodes with dma window properties, we will be able to quickly find the node for later checks, and can remove the table without looking for the the dma window property on dlpar remove. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Nishanth Aravamudan authored
The IOMMU code has been passing the dma-mask instead of the coherent_dma_mask to the iommu allocator. Coherent allocations should be made using the coherent_dma_mask. Also update the vio code to ensure the coherent_dma_mask is set. Without this change drivers, such as ibmvscsi, fail to load with the corrected dma_iommu_alloc_coherent(). Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
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Benjamin Herrenschmidt authored
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- 30 Nov, 2010 13 commits
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Jim Keniston authored
The name field in the nvram_header can be < 12 chars, null-terminated, or 12 chars without the null. Handle this safely. Signed-off-by: Jim Keniston <jkenisto@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Jim Keniston authored
Simplify creation and use of the NVRAM partition list. Signed-off-by: Jim Keniston <jkenisto@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
I'm not aware of any userspace tool accessing it by its name anyways, it's read back by the kernel itself on the next boot to get back older log entries Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
The nvram log partition stuff currently in nvram_64.c is really pseries specific. It isn't actually used on anything else (despite the fact that we ran the code to setup the partition on anything except powermac) and the log format is specific to pseries RTAS implementation. So move it where it belongs Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
This changes the function to use nvram_find_partition() instead of doing the lookup "by hand". It also makes some of the logic clearer and prints out more useful diagnostic information. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
Existing code is nasty, has bugs etc... rewrite the function more simply, and make it take the signature and optional name of the partitions to remove as arguments, thus making it a more generic utility. We also try to remove a log partition that we find and is too small rather than creating a duplicate. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
This error log stuff is really pseries specific. As a first step we move the initialization of these variables to the caller of nvram_create_partition(), which is also slightly reorganized so we setup the free partition before we clear the new partition, so the chance of an error during clear leaving us with invalid headers is lessened. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
When creating a partition, we clear it entirely rather than just the first two words since the previous code was rather specific to the pseries log partition format. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
Use BUILD_BUG_ON to ensure the structure representing a partition header have the right size. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
This converts nvram_create_partition() to use a size in bytes rather than blocks. It does the appropriate alignment internally The size passed is also the data size (ie. doesn't include the header anymore). Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
Replace nvram_create_os_partition() with a variant that takes the partition name, signature and size as arguments. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Benjamin Herrenschmidt authored
This moves a bunch of definitions out of asm/nvram.h to the files that use them or just outright remove completely unused stuff. We leave the partition signatures definitions, they will be useful Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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- 29 Nov, 2010 16 commits
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Peter Zijlstra authored
PowerPC relies on IRQ-disable to guard against RCU quiecent states, use the appropriate RCU call version. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Victor Gallardo authored
- Add Clock Power Management (CPM) node to dts tree - Add idle-doze entry in CPM node - Add standby entry in CPM node - Add PM and SUSPEND support by default in defconfig - Remove UART2 and UART3 as they are unused, this will allow CPM to put unused-units (UART2 and UART3) to sleep. Signed-off-by: Victor Gallardo <vgallardo@apm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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Victor Gallardo authored
- Add Clock Power Management (CPM) node to dts tree - Add idle-doze entry in CPM node - Add standby entry in CPM node - Add PM and SUSPEND support by default in defconfig - Add NO_HZ and CONFIG_HIGH_RES_TIMERS support by default in defconfig Signed-off-by: Victor Gallardo <vgallardo@apm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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Victor Gallardo authored
Add suspend/resume support for 4xx compatible CPUs. See /sys/power/state for available power states configured in. Add two different idle states (idle-wait and idle-doze) controlled via sysfs. Default is idle-wait. cat /sys/devices/system/cpu/cpu0/idle [wait] doze To save additional power, use idle-doze. echo doze > /sys/devices/system/cpu/cpu0/idle cat /sys/devices/system/cpu/cpu0/idle wait [doze] Signed-off-by: Victor Gallardo <vgallardo@apm.com> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com>
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Stephen Rothwell authored
Since STACK_FRAME_OVERHEAD is defined in asm/ptrace.h and that is ASSEMBER safe, we can just include that instead of going via asm-offsets.h. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Michael Neuling authored
Change pgdir from a void to real type. Having this as a void is stupid and has already caused 1 bug. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Michael Neuling authored
This adds the POWER7+ cputable entry for the PVR 0x004a0000. Rest is the same as vanilla POWER7. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Michael Neuling authored
These are not needed on POWER7 so remove them. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Michael Neuling authored
These are not needed so just remove them Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Jesse Larrew authored
This simple patch adds the firmware feature for VPHN to the firmware features bitmask. Signed-off-by: Jesse Larrew <jlarrew@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Michael Ellerman authored
No need to have three of them. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Jesper Juhl authored
On Tue, 2 Nov 2010, Michael Ellerman wrote: > On Mon, 2010-11-01 at 22:20 +0100, Jesper Juhl wrote: > > Hi Stephen, > > > > On Tue, 2 Nov 2010, Stephen Rothwell wrote: > > > > > On Mon, 1 Nov 2010 21:06:23 +0100 (CET) Jesper Juhl <jj@chaosbits.net> wrote: > > > > > > > > Remove unused function 'mf_getSrcHistory' (that will never be used ever > > > > according to Stephen Rothwell). > > > > > > > > Signed-off-by: Jesper Juhl <jj@chaosbits.net> > > > > > > Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> > > > > > > > Ok, so if you are the (unofficial) iSeries maintainer and you don't merge > > the patch somewhere that'll eventually go up-stream, but just ACK it > > (thank you for that btw), then where do I send it to get it merged? > > Here. ie. linuxppc-dev. > > But, while you're removing it you should remove the #if 0'ed callsite as > well, see mf_src_proc_show() in that file. :) > Done. See patch below. Remove unused function 'mf_getSrcHistory' (that will never be used ever according to Stephen Rothwell) and also remove most of (under 'if 0') code from mf_src_proc_show() where the function was called. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Jesper Juhl authored
Hi, We can get rid of a memset in arch/powerpc/platforms/cell/spufs/lscsa_alloc.c::spu_alloc_lscsa_std() by using vzalloc() rather than vmalloc()+memset(). Completely untested patch below since I have no hardware nor tools to compile this. Signed-off-by: Jesper Juhl <jj@chaosbits.net> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Nishanth Aravamudan authored
Add a function to get the maximum address that can be hotplug added. This is needed to calculate the size of the tce table needed to cover all memory in 1:1 mode. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Nishanth Aravamudan authored
Also add a comment to dev_archdata, indicating that changes there need to be verified against the driver code. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Nishanth Aravamudan authored
No need to initialize per-cpu pointer to NULL, it is the default. Direct dma ops and no setup are the defaults, no need to set for iommu-off. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Nishanth Aravamudan <nacc@us.ibm.com> Reviewed-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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