- 21 Jun, 2006 21 commits
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arnd@arndb.de authored
For performance analysis, it is often interesting to know which physical SPE a thread is currently running on, and, more importantly, if it is running at all. This patch adds a simple attribute to each SPU directory with that information. The attribute is read-only and called 'phys-id'. It contains an ascii string with the number of the physical SPU (e.g. "0x5"), or alternatively the string "0xffffffff" (32 bit -1) when it is not running at all at the time that the file is read. Signed-off-by:
Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by:
Paul Mackerras <paulus@samba.org>
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arnd@arndb.de authored
spufs currently knows only 4k pages and 16M hugetlb pages. Make it use the regular methods for deciding on the SLB bits. Signed-off-by:
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Michael Ellerman authored
spufs_rmdir tries to acquire the spufs root i_mutex, which is already held by spufs_create_thread. This was tracked as Bug #H9512. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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arnd@arndb.de authored
A recent change to the way that the mfc file gets mapped made it impossible to map the SPE Multi-Source Synchronization register into user space, but that may be needed by some applications. This restores the missing functionality. Signed-off-by:
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arnd@arndb.de authored
The spu_base module is rather deeply intermixed with the core kernel, so it makes sense to have that built-in. This will let us extend the base in the future without having to export more core symbols just for it. Signed-off-by:
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Jeremy Kerr authored
SPUs are registered as system devices, exposing attributes through sysfs. Since the sysdev includes a kref, we can remove the one in struct spu (it isn't used at the moment anyway). Currently only the interrupt source and numa node attributes are added. Signed-off-by:
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arnd@arndb.de authored
Enable some of the most requested features in defconfig and refresh with the latest powerpc.git Kconfig files. Signed-off-by:
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arnd@arndb.de authored
Checking the priority field to test for irq validity is completely bogus and breaks with future external interrupt controllers. Signed-off-by:
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Benjamin Herrenschmidt authored
This is a first version of support for the Cell BE "Reliability, Availability and Serviceability" features. It doesn't yet handle some of the RAS interrupts (the ones described in iic_is/iic_irr), I'm still working on a proper way to expose these. They are essentially a cascaded controller by themselves (sic !) though I may just handle them locally to the iic driver. I need also to sync with David Erb on the way he hooked in the performance monitor interrupt. So that's all for 2.6.17 and I'll do more work on that with my rework of the powerpc interrupt layer that I'm hacking on at the moment. Signed-off-by:
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Jon Loeliger authored
Signed-off-by:
Kriston Carson <KristonCarson@freescale.com> Signed-off-by:
Xianghua Xiao <x.xiao@freescale.com> Signed-off-by:
Jon Loeliger <jdl@freescale.com> Acked-by:
Jeff Garzik <jeff@garzik.org> Signed-off-by:
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Jon Loeliger authored
The same I2C driver found on 85xx, etc., can be used for 86xx too. Signed-off-by:
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Jon Loeliger authored
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Jeff Brown <Jeff.Brown@freescale.com> Signed-off-by:
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Jon Loeliger authored
Signed-off-by:
Wei Zhang <Wei.Zhang@freescale.com> Signed-off-by:
Haiying Wang <Haiying.Wang@freescale.com> Signed-off-by:
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Jon Loeliger authored
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Jon Loeliger authored
Clear the high BATS during load_up_mmu if FTR_HAS_HIGH_BATS. Allow just a bit more time for secondary CPUs to phone home. Signed-off-by:
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Jon Loeliger authored
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Jon Loeliger authored
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Jon Loeliger authored
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Jon Loeliger authored
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Jon Loeliger authored
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John Rose authored
Export both news RTAS delay functions, and change the scanlog module to use the new delay functions. Signed-off-by:
John Rose <johnrose@austin.ibm.com> Signed-off-by:
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- 15 Jun, 2006 19 commits
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Matthias Fuchs authored
Hi, this patch brings the CPCI405 board support up to date and fixes several outstanding issues: -add bios_fixup() -enable RTC only when CONFIG_GEN_RTC defined -corrected CompactPCI interrupt map -added cpci405_early_serial_map for correct UART clocking -removed unused code Matthias Signed-off-by:Matthias Fuchs <matthias.fuchs@esd-electronics.com> Signed-off-by:
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Johannes Berg authored
This fixes the pmf irq_client functions to be safe against pmf interrupts coming in while a client is registered/unregistered. Signed-off-by:
Johannes Berg <johannes@sipsolutions.net> Signed-off-by:
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Dave C Boutcher authored
Currently the kernel blindly halts all the processors and calls the ibm,suspend-me rtas call. If the firmware is not in the correct state, we then re-start all the processors and return. It is much smarter to first check the firmware state, and only if it is waiting, call the ibm,suspend-me call. Signed-off-by: -
Amos Waterland authored
It seems that prom_init's early_cmdline_parse is broken on at least Apple 970 xserves and IBM JS20 blades with SLOF. The firmware of these machines returns -1 and 1 respectively when getprop is called for the bootargs property of /chosen, causing Linux to ignore its builtin command line in favor of a null string. This patch makes Linux use its builtin command line if getprop returns an error or a null string. Signed-off-by:
Amos Waterland <apw@us.ibm.com> Acked-by:
Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by:
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Anton Blanchard authored
Some updates to the pmac32_defconfig to make it more useful: - Enable LSF (large single files) since we enable LBD (large block devices) - Enable IPSEC related options - Enable remaining raid/dm options as modules - Disable eth1394, I doubt any has that hardware and it has a nasty habit of auto loading first and skewing network device numbering - Enable dummy and tun as modules, always useful to have them around - Enable EHCI, no wonder my usb2 disk was so slow - Enable USB storage - Enable ext3 acls - Disable autofs and enable autofsv4 instead - Enable nfs v3/v4 client and server. Dont want to be left in the dark ages of pre v3 - Enable all crypto as modules, things like cryptsetup want some of them I havent enabled the BCM43xx, perhaps we should now? Signed-off-by:
Anton Blanchard <anton@samba.org> Signed-off-by:
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Anton Blanchard authored
In the syscall path we currently have: crclr so mfcr r9 If we shift the crclr up we can avoid a stall on some CPUs. Signed-off-by: -
Anton Blanchard authored
On non partitioned machines we currently set the HV bit in kernel space only. It turns out we are supposed to maintain the HV bit in both user and kernel space. Signed-off-by:
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Anton Blanchard authored
For pseries IOMMU bypass I want to be able to fall back to the regular IOMMU ops. Do this by creating a dma_mapping_ops struct, and convert the others while at it. Signed-off-by:
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Anton Blanchard authored
Allocate IOMMU tables local to the relevant node. Signed-off-by:
Olof Johansson <olof@lixom.net> Signed-off-by:
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Anton Blanchard authored
of_node_to_nid returns -1 if the associativity cannot be found. This means pcibus_to_cpumask has to be careful not to pass a negative index into node_to_cpumask. Since pcibus_to_node could be used a lot, and of_node_to_nid is slow (it walks a list doing strcmps), lets also cache the node in the pci_controller struct. Signed-off-by:
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Anton Blanchard authored
pseries defconfig updates: - Enable jsm and re-enable qlogic FC drivers as modules. - Enable ocfs2, autofs4 and fuse filesystems as modules. - Enable Kprobes. - Enable ebus, binfmt_misc, sas attrs, md5 reshape, hvc rtas backend and some infiniband options. - Finally disable debug options: DEBUG_MUTEXES and DEBUG_STACK_USAGE. Signed-off-by:
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Anton Blanchard authored
Remove some stale POWER3/POWER4/970 on 32bit kernel support. Signed-off-by:
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Anton Blanchard authored
Micro-optimisation - add no-minimal-toc to some more arch/powerpc Makefiles. Signed-off-by:
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Anton Blanchard authored
Forthcoming machines will extend the FPSCR to 64 bits. We already had a 64-bit save area for the FPSCR, but we need to use a new form of the mtfsf instruction. Fortunately this new form is decoded as an ordinary mtfsf by existing 64-bit processors. Signed-off-by:
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mostrows@watson.ibm.com authored
zImage will set /chosen/bootargs (if it is otherwise empty) with the contents of a buffer in the section "__builtin_cmdline". This permits tools to edit zImage binaries to set the command-line eventually processed by vmlinux. -- Signed-off-by:
Michal Ostrowski <mostrows@watson.ibm.com> Signed-off-by:
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Jake Moilanen authored
Instead of trying to make PPC64 MSI fit in a Intel-centric MSI layer, a simple short-term solution is to hook the pci_{en/dis}able_msi() calls and make a machdep call. The rest of the MSI functions are superfluous for what is needed at this time. Many of which can have machdep calls added as needed. Ben and Michael Ellerman are looking into rewrite the MSI layer to be more generic. However, in the meantime this works as a interim solution. Signed-off-by:Jake Moilanen <moilanen@austin.ibm.com> Signed-off-by:
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Jake Moilanen authored
This adds support to recognize the PCIe device_type "pciex" and made the portdrv buildable. Signed-off-by:
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Paul Mackerras authored
The push_end macro in arch/powerpc/kernel/pci_32.c uses integer division and multiplication to achieve the effect of rounding a resource end address up and then advancing it to the end of a power-of-2 sized region. This changes it to an equivalent computation that only needs an integer add and OR. This is partly based on an earlier patch by Mel Gorman. Signed-off-by: -
Paul Mackerras authored
Some POWER5+ machines can do 64k hardware pages for normal memory but not for cache-inhibited pages. This patch lets us use 64k hardware pages for most user processes on such machines (assuming the kernel has been configured with CONFIG_PPC_64K_PAGES=y). User processes start out using 64k pages and get switched to 4k pages if they use any non-cacheable mappings. With this, we use 64k pages for the vmalloc region and 4k pages for the imalloc region. If anything creates a non-cacheable mapping in the vmalloc region, the vmalloc region will get switched to 4k pages. I don't know of any driver other than the DRM that would do this, though, and these machines don't have AGP. When a region gets switched from 64k pages to 4k pages, we do not have to clear out all the 64k HPTEs from the hash table immediately. We use the _PAGE_COMBO bit in the Linux PTE to indicate whether the page was hashed in as a 64k page or a set of 4k pages. If hash_page is trying to insert a 4k page for a Linux PTE and it sees that it has already been inserted as a 64k page, it first invalidates the 64k HPTE before inserting the 4k HPTE. The hash invalidation routines also use the _PAGE_COMBO bit, to determine whether to look for a 64k HPTE or a set of 4k HPTEs to remove. With those two changes, we can tolerate a mix of 4k and 64k HPTEs in the hash table, and they will all get removed when the address space is torn down. Signed-off-by:
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