- 21 Jun, 2006 32 commits
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arnd@arndb.de authored
The SPU context save/restore code is currently built for a 4k page size and we provide a _shipped version of it since most people don't have the spu toolchain that is needed to rebuild that code. This patch hardcodes the data structures to a 64k page alignment, which also guarantees 4k alignment but unfortunately wastes 60k of memory per SPU context that is created in the running system. We will follow up on this with another patch to reduce that overhead or maybe redo the context save/restore logic to do this part entirely different, but for now it should make experimental systems work with either page size. 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
At this time, all flags are invalid. Since we are planning to actually add valid flags in the future, we better check if any were passed by the user. Signed-off-by:
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Masato Noguchi authored
SPU interrupt status must be cleared before handle it. Otherwise, kernel may drop some interrupt packet. Currently, class2 interrupt treated like: 1) call callback to wake up waiting process 2) mask raised mailbox interrupt 3) clear interrupt status I changed like: 1) mask raised mailbox interrupt 2) clear interrupt status 3) call callback to wake up waiting process Clearing status before masking will make spurious interrupt. Thus, it is necessary to hold by steps I described above, I think. Signed-off-by:
Masato Noguchi <Masato.Noguchi@jp.sony.com> Signed-off-by:
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Masato Noguchi authored
added spu_{save,restore}_dump.h to target of 'make clean' Signed-off-by: -
Masato Noguchi authored
This patch remove 'stop_code' -- discarded member of struct spu. It is written at initialize and interrupt, but never read in current implementation. Signed-off-by:
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Geoff Levand authored
This changes the hypervisor abstraction of setting cpu affinity to a higher level to avoid platform dependent interrupt controller routines. I replaced spu_priv1_ops:spu_int_route_set() with a new routine spu_priv1_ops:spu_cpu_affinity_set(). As a by-product, this change eliminated what looked like an existing bug in the set affinity code where spu_int_route_set() mistakenly called int_stat_get(). Signed-off-by:
Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by:
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Geoff Levand authored
To support muti-platform binaries the spu hypervisor accessor routines must have runtime binding. I removed the existing statically linked routines in spu.h and spu_priv1_mmio.c and created new accessor routines in spu_priv1.h that operate indirectly through an ops struct spu_priv1_ops. spu_priv1_mmio.c contains the instance of the accessor routines for running on raw hardware. Signed-off-by:
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Geoff Levand authored
Creates new config variables PPC_CELL_NATIVE and PPC_IBM_CELL_BLADE. The existing CONFIG_PPC_CELL is now used to denote the generic Cell processor support. PPC_CELL = make descends into platforms/cell PPC_CELL_NATIVE = add bare metal support PPC_IBM_CELL_BLADE = add blade device drivers, etc. Also renames spu_priv1.c to spu_priv1_mmio.c. Signed-off-by:
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arnd@arndb.de authored
The save/restore sequence for SPE contexts currently attempts to save and restore the channel count for SPE channel 1 (the SPU_WriteEventMask channel. But the CBE architecture (section 9.11.2) clearly states that this channel does not have an associated count. Hardware simply ignores the attempt to write this count, but the simulator generates a warning message. WARNING: 279721590: SPE7: Attempt to write channel count for CH 1 with no associated count is ignored. Signed-off-by:
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Jeremy Kerr authored
Clean up create_spu() a little by using kzalloc instead of kmalloc + assignments. Signed-off-by:
Jeremy Kerr <jk@ozlabs.org> Signed-off-by:
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arnd@arndb.de authored
The wbox channel count of an spu is now initialized to four for the saved context. This makes it possible to write to the mailbox right away without waiting for the SPE to become scheduled first. Signed-off-by:
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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:
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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
Signed-off-by:
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 8 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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