- 09 Jan, 2009 1 commit
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roel kluin authored
strcmp on NULL results in a segmentation fault, also, remove the second, redundant test on dev Signed-off-by:
Roel Kluin <roel.kluin@gmail.com> Signed-off-by:
Grant Likely <grant.likely@secretlab.ca>
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- 08 Jan, 2009 39 commits
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Benjamin Krill authored
Add support for the nwp serial device which is connected to a DCR bus. It uses the of_serial device driver to determine necessary properties from the device tree. The supported device is added as serial port number 85. NWP stands for network processor and it is part of the QPACE - Quantum Chromodynamics Parallel Computing on the Cell Broadband Engine project. The implementation is a lightweight uart implementation with the focus to consume as little resources as possible and it is connected to a DCR bus. Signed-off-by:
Benjamin Krill <ben@codiert.org> Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Steven Rostedt authored
This patch enables dynamic ftrace. The PowerPC port was dependent on other code not yet in mainline. Now that the code is, we can now let PowerPC compile with dynamic ftrace. Signed-off-by:
Steven Rostedt <srostedt@redhat.com> Signed-off-by:
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Stephen Rothwell authored
Signed-off-by:
Stephen Rothwell <sfr@canb.auug.org.au> Acked-by:
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Anton Vorontsov authored
The clear_fixmap() routine issues map_page() with flags set to 0. Currently this causes a BUG_ON() inside the map_page(), as it assumes that a PTE should be clear before mapping. This patch makes the map_page() to trigger the BUG_ON() only if the flags were set. Signed-off-by:
Anton Vorontsov <avorontsov@ru.mvista.com> Acked-by:
Kumar Gala <galak@kernel.crashing.org> Signed-off-by:
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Anton Vorontsov authored
The patch replaces internal registers dump implementation with ppc_save_regs(). From now on PPC64 and PPC32 are using the same code for crash_setup_regs(). NOTE: The old regs dump implementation was capturing SP (r1) directly as is, so you could see crash_kexec() function on top of the back-trace. But ppc_save_regs() goes up one stack frame, so you'll not see it anymore, at the top-level you'll see who actually triggered the crash dump instead. Signed-off-by:
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Kumar Gala authored
The Freescale PowerPC specific gianfar driver (gig-e) uses cacheable_memzero for performance reasons we need to export the symbol to allow the driver to be built as a module. Signed-off-by:
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Benjamin Herrenschmidt authored
This is a brown paper bag from one of my earlier patches that breaks build on 40x and 8xx. And yes, I've now added 40x and 8xx to my list of test configs :-) Signed-off-by: -
Ingo Molnar authored
[Split from a larger patch - sfr] Signed-off-by:
Ingo Molnar <mingo@elte.hu> Signed-off-by:
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Ingo Molnar authored
in/out_be64() work on u64s. The first parameter to ppc_md.ioremap is a phys_addr_t. Signed-off-by:
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Ingo Molnar authored
Only pass the address of a u64 if that is what the function requires. [Split out of a larger patch - sfr] [update comment - sfr] Signed-off-by:
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Ingo Molnar authored
tce_entryp is a "u64 *" not an "unsigned long *". [Split from a large patch -sfr] Signed-off-by:
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Stephen Rothwell authored
of_get_flat_dt_prop() returns a "void *", so we don't need to cast when assigning its result to a pointer variable. Signed-off-by: -
Geoff Levand authored
Use _PAGE_NO_CACHE for gpu memory ioremap. Also, add __iomem attribute to gpu memory pointer and change use of memset() to memset_io(). Signed-off-by:
Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by:
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Geoff Levand authored
Replace the use of udelay() with msleep() in the looping wait routines ps3vram_notifier_wait() and ps3vram_wait_ring(). Signed-off-by:
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Geoff Levand authored
Replace the use of stdint.h types with kernel types in the ps3vram driver. Signed-off-by:
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Geoff Levand authored
Cleanup the ps3vram driver messages. Add a new struct device pointer variable dev to struct ps3vram_priv and use dev_dbg(), pr_dbg(), etc. where appropriate. Signed-off-by:
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Geoff Levand authored
Remove the ps3vram debug routines ps3vram_dump_ring() and ps3vram_dump_reports(). These routines are not needed. Signed-off-by:
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Geert Uytterhoeven authored
Update ps3vram driver to use the new ps3 three id modalias support. Signed-off-by:
Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by:
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Jim Paris authored
Add ps3vram driver, which exposes unused video RAM on the PS3 as a MTD device suitable for storage or swap. Fast data transfer is achieved using a local cache in system RAM and DMA transfers via the GPU. Signed-off-by:
Vivien Chappelier <vivien.chappelier@free.fr> Signed-off-by:
Jim Paris <jim@jtan.com> Acked-by:
David Woodhouse <David.Woodhouse@intel.com> Signed-off-by:
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Kamalesh Babulal authored
iSeries dependent drivers fail to build, when CONFIG_VIOPATH is disabled. Fix the problem by making those drivers select it. Signed-off-by:
Kamalesh Babulal <kamalesh@linux.vnet.ibm.com> Signed-off-by:
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Mohan Kumar M authored
Enable RELOCATABLE option if user selects CRASH_DUMP option. Without this patch user has to first select RELOCATABLE option and then has to enable CRASH_DUMP option. Signed-off-by:
M. Mohan Kumar <mohan@in.ibm.com> Signed-off-by:
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Dave Liu authored
Signed-off-by:
Dave Liu <daveliu@freescale.com> Acked-by:
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Stephen Rothwell authored
Signed-off-by:
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Stephen Rothwell authored
So change the flags member of struct spu from u64 to unsigned long. This change will also prevent some warnings when we change u64 to unsigned long long. Signed-off-by:
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Matthias Fuchs authored
These ioctls take a struct serial_rs485 (see linux/serial.h) as argument. They are already available on x86. This patch adds them for the powerpc architecture. Signed-off-by:
Matthias Fuchs <mfuchs@ma-fu.de> Signed-off-by:
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Paul Mackerras authored
X has been failing to start on my quad G5 powermac since commit 1fd0f525 ("powerpc: Fix domain numbers in /proc on 64-bit") went in. The reason is that the change allows X to see the PCI-PCI bridge above the video card (previously it was obscured by the fact that there were two "00" directories in /proc/bus/pci), and the pciconfig_iobase system call on the bridge is failing because of a hack that we have to return information about the AGP bus when X asks about bus 0. This machine doesn't have an AGP bus (it has PCI Express) and so the pciconfig_iobase call is returning -1, which ultimately causes X to fail to start. This fixes it by checking that we have an AGP bridge before redirecting the pciconfig_iobase call to return information about the AGP bus. With this, X starts successfully both on a quad G5 with PCI Express and on an older dual G5 with AGP. Signed-off-by:
Paul Mackerras <paulus@samba.org> Acked-by:
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Julia Lawall authored
SPIN_LOCK_UNLOCKED is deprecated. The following makes the change suggested in Documentation/spinlocks.txt The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ declarer name DEFINE_SPINLOCK; identifier xxx_lock; @@ - spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED; + DEFINE_SPINLOCK(xxx_lock); // </smpl> Signed-off-by:
Julia Lawall <julia@diku.dk> Signed-off-by:
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Julia Lawall authored
SPIN_LOCK_UNLOCKED is deprecated. The following makes the change suggested in Documentation/spinlocks.txt The semantic patch that makes this change is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @@ declarer name DEFINE_SPINLOCK; identifier xxx_lock; @@ - spinlock_t xxx_lock = SPIN_LOCK_UNLOCKED; + DEFINE_SPINLOCK(xxx_lock); // </smpl> Signed-off-by:
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Nathan Lynch authored
The current code for providing processor cache information in sysfs has the following deficiencies: - several complex functions that are hard to understand - implicit recursion (cache_desc_release -> kobject_put -> cache_desc_release) - explicit recursion (create_cache_index_info) - use of two per-cpu arrays when one would suffice - duplication of work on systems where CPUs share cache Also, when I looked at implementing support for a shared_cpu_map attribute, it was pretty much impossible to handle hotplug without checking every single online CPU's cache_desc list and fixing things up... not that this is a hot path, but it would have introduced O(n^2)-ish behavior during boot. Addressing this involved rethinking the core data structures used, which didn't lend itself to an incremental approach. This implementation maintains a "forest" (potentially more than one tree) of cache objects which reflects the system's cache topology. Cache objects are instantiated as needed as CPUs come online. A per-cpu array is used mainly for sysfs-related bookkeeping; the objects in the array just point to the appropriate points in the forest. This maintains compatibility with the existing code and includes some enhancements: - Implement the shared_cpu_map attribute, which is essential for enabling userspace to discover the system's overall cache topology. - Use cache-block-size properties if cache-line-size is not available. I chose to place this implementation in a new file since it would have roughly doubled the size of sysfs.c, which is already kind of messy. Signed-off-by:
Nathan Lynch <ntl@pobox.com> Signed-off-by:
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Michael Ellerman authored
The non-zero return from the prepare callback is returned by sys_kexec_load() to userspace, indicating that kexec is not supported on the machine. Signed-off-by:
Michael Ellerman <michael@ellerman.id.au> Signed-off-by:
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Grant Likely authored
This patch makes the default install script (arch/powerpc/boot/install.sh) copy the bootable image files into the install directory. Before this patch only the vmlinux image file was copied. This patch makes the default 'make install' command useful for embedded development when $(INSTALL_PATH) is set in the environment. As a side effect, this patch changes the calling convention of the install.sh script. Instead of a single 5th parameter, the script is now passed a list of all the target images stored in the $(image-y) Makefile variable. This should be backwards compatible with existing install scripts since it just adds additional arguments and does not change existing ones. Signed-off-by:
Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by:
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Dave Hansen authored
Both users of careful_allocation() immediately memset() the result. So, just do it in one place. Also give careful_allocation() a 'z' prefix to bring it in line with kzmalloc() and friends. Signed-off-by:
Dave Hansen <dave@linux.vnet.ibm.com> Signed-off-by:
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Dave Hansen authored
Since we memset() the result in both of the uses here, just make careful_alloc() return a virtual address. Also, add a separate variable to store the physial address that comes back from the lmb_alloc() functions. This makes it less likely that someone will screw it up forgetting to convert before returning since the vaddr is always in a void* and the paddr is always in an unsigned long. I admit this is arbitrary since one of its users needs a paddr and one a vaddr, but it does remove a good number of casts. Signed-off-by:
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Dave Hansen authored
If we fail a bootmem allocation, the bootmem code itself panics. No need to redo it here. Also change the wording of the other panic. We don't strictly have to allocate memory on the specified node. It is just a hint and that node may not even *have* any memory on it. In that case we can and do fall back to other nodes. Signed-off-by:
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Dave Hansen authored
The behavior in careful_allocation() really confused me at first. Add a comment to hopefully make it easier on the next doofus that looks at it. Signed-off-by:
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Nicolas Palix authored
This patch fixes some unbalanced OF node references in the powermac code Signed-off-by:
Nicolas Palix <npalix@diku.dk> Signed-off-by:
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Benjamin Herrenschmidt authored
There's a problem on some embedded platforms when we re-assign everything on PCI, such as 44x. The generic code tries to avoid assigning devices to addresses overlapping the low legacy addresses such as VGA hard decoded areas using constants that are unfortunately no good for us, as they don't take into account the address translation we do to access PCI busses. Thus we end up allocating things like IO BARs to 0, which is technically legal, but will shadow hard decoded ports for use by things like VGA cards. This works around it by attempting to reserve legacy regions before we try to assign addresses. NOTE: This may have nasty side effects in cases I haven't tested yet: - We try to use FW mappings (ie. powermac) and the FW has allocated a conflicting address over those legacy regions. This will typically happen. I would expect the new code to just fail with an informative message without harm but I haven't had a chance to test that scenario yet. - A device with fixed BARs overlapping those legacy addresses such as an IDE controller in legacy mode is in the system. I don't know for sure yet what will happen there, I have to test :-) Ideally, we should change PCIBIOS_MIN_IO/MIN_MEM accross the board to take a bus pointer so they can provide appropriate per-bus translated values to the generic code but that's a more invasive patch. I will do that in the future, but in the meantime, this fixes the problem locally Signed-off-by: -
Benjamin Herrenschmidt authored
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-2.6: sparc64: Work around branch tracer warning. sparc64: Fix unsigned long long warnings in drivers. sparc64: Use unsigned long long for u64. sparc: refactor code in fault_32.c sparc64: refactor code in init_64.c sparc64: refactor code in viohs.c sparc: make proces_ver_nack a bit more readable
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