- 06 May, 2010 1 commit
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Paul Mundt authored
Various boot loaders go to various extents to thwart the initrd detection logic (mostly on account of not being able to be bothered with adhering to the established boot ABI), so we make the detection logic a bit more robust. This makes it possible to work around the SDK7786's firmware's attempts to thwart compressed image booting. Victory is mine. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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- 29 Apr, 2010 2 commits
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Matt Fleming authored
arch/sh/kernel/smp.c:164: error: conflicting types for 'native_cpu_disable' /home/matt/src/kernels/sh-2.6/arch/sh/include/asm/smp.h:48: error: previous declaration of 'native_cpu_disable' was here Signed-off-by: Matt Fleming <matt@console-pimps.org> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Magnus Damm authored
Add CONFIG_VIRTUALIZATION to the SH architecture and include the virtio code there. Used to enable the virtio drivers under QEMU. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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- 27 Apr, 2010 1 commit
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Paul Mundt authored
The UP dependency was inherited from ARM, which seems to have run in to it due to the stacktrace code not being available for SMP in certain cases, as we don't have this particular limitation there is no specific need to block on the SMP dependency. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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- 26 Apr, 2010 20 commits
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Paul Mundt authored
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Paul Mundt authored
This wires up CPU hotplug for SH-X3 SMP CPUs. Presently only secondary cores can be hotplugged given that the boot CPU has to contend with the broadcast timer. When real local timers are implemented this restriction can be lifted. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
This adds preliminary support for CPU hotplug for SH SMP systems. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
This provides a cache of the secondary CPUs idle loop for the cases where hotplug simply enters a low power state instead of resetting or powering off the core. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
smp_store_cpu_info() is presently flagged as __init, but is called by start_secondary() which is __cpuinit, fix it up. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
This provides percpu CPU states in preparation for CPU hotplug and the associated notifier chains. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
This iterates over the maximum number of CPUs we plan to support and makes sure they're all set in the present CPU map. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
This converts from cpu_set() for the online map to set_cpu_online(). The two online map modifiers were the last remaining manual map manipulation bits, with this in place everything now goes through cpumask. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
With the platform ops migration, the definitions still need to be included in the CONFIG_SMP=n case, so make the asm/smp.h include explicit. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
When registering CPUs in the topology initialization ensure that all of the present CPUs are flagged as hotpluggable. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
Now that compressed image loading is possible for sdk7786, drop the vmlinux.bin default image target and update the defconfig accordingly. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
Conflicts: arch/sh/kernel/dwarf.c drivers/dma/shdma.c Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Guennadi Liakhovetski authored
If channel allocation is failing, mark the channel unused and give PM a chance to power down the hardware. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Magnus Damm authored
This patch updates the sh7751 pci code to handle io ports correctly. The code is based on the sh7788x implementation. Tested on a R2D-1 board with CONFIG_8139TOO_PIO=y. Signed-off-by: Magnus Damm <damm@opensource.se> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Magnus Damm authored
Update the R2D defconfigs to bump up the maximum number of SCIF ports on the system. Fixes a broken serial console regression added by cd5f1076. Reported-by: Shin-ichiro KAWASAKI <kawasaki@juno.dti.ne.jp> Signed-off-by: Magnus Damm <damm@opensource.se> Tested-by: Alexandre Courbot <alex@dcl.info.waseda.ac.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Guennadi Liakhovetski authored
CHCR_TS_HIGH_SHIFT is defined as a shift of TS high bits in CHCR register, relative to low bits. The TS_INDEX2VAL() macro has to take this into account. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Paul Mundt authored
* 'master' of master.kernel.org:/pub/scm/linux/kernel/git/mfleming/sh-2.6: sh: Use correct mask when comparing PMB DATA array values sh: Do not try merging two 128MB PMB mappings sh: Fix zImage load address when CONFIG_32BIT=y sh: Fix address to decompress at when CONFIG_32BIT=y sh: Assembly friendly __pa and __va definitions
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Guennadi Liakhovetski authored
Lists of DMA channels and slaves are not changed, make them constant. Besides, SH7724 channel and slave configuration of both DMA controllers is identical, remove the extra copy of the configuration data. Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Nick Piggin authored
As explained in commit 1c0fe6e3, we want to call the architecture independent oom killer when getting an unexplained OOM from handle_mm_fault, rather than simply killing current. Cc: linux-sh@vger.kernel.org Cc: linux-arch@vger.kernel.org Signed-off-by: Nick Piggin <npiggin@suse.de> Acked-by: David Rientjes <rientjes@google.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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- 25 Apr, 2010 9 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: ipv6: Fix inet6_csk_bind_conflict() e100: Fix the TX workqueue race
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Eric Dumazet authored
Commit fda48a0d (tcp: bind() fix when many ports are bound) introduced a bug on IPV6 part. We should not call ipv6_addr_any(inet6_rcv_saddr(sk2)) but ipv6_addr_any(inet6_rcv_saddr(sk)) because sk2 can be IPV4, while sk is IPV6. Reported-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Tested-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Matt Fleming authored
Previously we were masking the PMB DATA array values with the value of __MEMORY_START | PMB_V, which misses some PFN bits off the mask. Signed-off-by: Matt Fleming <matt@console-pimps.org>
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Matt Fleming authored
There is a logic error in pmb_merge() that means we will incorrectly try to merge two 128MB PMB mappings into one mapping. However, 256MB isn't a valid PMB map size and pmb_merge() will actually drop the second 128MB mapping. This patch allows my SDK7786 board to boot when configured with CONFIG_MEMORY_SIZE=0x10000000. Signed-off-by: Matt Fleming <matt@console-pimps.org>
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Matt Fleming authored
We can't necessarily use the P1SEG region to access RAM when running in 32BIT mode, so use CONFIG_MEMORY_START as the base address. Signed-off-by: Matt Fleming <matt@console-pimps.org>
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Matt Fleming authored
When running in 32BIT mode the P1SEG region doesn't necessarily provide a window onto RAM (it depends how the bootloader setup the PMB). The correct location to place the decompressed kernel is the physical address of _text. Signed-off-by: Matt Fleming <matt@console-pimps.org>
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Matt Fleming authored
This patch defines ___pa and ___va which return the physical and virtual address of an address, respectively. These macros are suitable for calling from assembly because they don't include the C casts required by __pa and __va. Signed-off-by: Matt Fleming <matt@console-pimps.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds authored
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: ext4: Issue the discard operation *before* releasing the blocks to be reused ext4: Fix buffer head leaks after calls to ext4_get_inode_loc() ext4: Fix possible lost inode write in no journal mode
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Alan Cox authored
Nothing stops the workqueue being left to run in parallel with close or a few other operations. This causes double unmaps and the like. See kerneloops.org #1041230 for an example Signed-off-by: Alan Cox <alan@linux.intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 24 Apr, 2010 7 commits
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git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds authored
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] use max load in conservative governor [CPUFREQ] fix a lockdep warning
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6Linus Torvalds authored
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6: (22 commits) gianfar: Fix potential oops during OF address translation fsl_pq_mdio: Fix kernel oops during OF address translation tcp: bind() fix when many ports are bound rdma: potential ERR_PTR dereference rtnetlink: potential ERR_PTR dereference net: ipv6 bind to device issue ipv6: allow to send packet after receiving ICMPv6 Too Big message with MTU field less than IPV6_MIN_MTU drivers/net/usb: Add new driver ipheth cxgb3: fix linkup issue X25 fix dead unaccepted sockets KS8851: NULL pointer dereference if list is empty net: 3c574_cs fix stats.tx_bytes counter xfrm6: ensure to use the same dev when building a bundle can: Fix possible NULL pointer dereference in ems_usb.c net: Fix an RCU warning in dev_pick_tx() ipv6: Fix tcp_v6_send_response transport header setting. bridge: add a missing ntohs() 8139too: Fix a typo in the function name. mac80211: pass HT changes to driver when off channel mac80211: remove bogus TX agg state assignment ...
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git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6Linus Torvalds authored
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jbarnes/pci-2.6: PCI: Ensure we re-enable devices on resume x86/PCI: parse additional host bridge window resource types PCI: revert broken device warning PCI aerdrv: use correct bit defines and add 2ms delay to aer_root_reset x86/PCI: ignore Consumer/Producer bit in ACPI window descriptions
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Linus Torvalds authored
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86 * 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mjg59/platform-drivers-x86: eeepc-laptop: add missing sparse_keymap_free eeepc-wmi: Build fix asus: don't modify bluetooth/wlan on boot dell-wmi: Fix memory leak eeepc-wmi: add backlight support eeepc-wmi: use a platform device as parent device of all sub-devices eeepc-wmi: add an eeepc_wmi context structure
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Phillip Lougher authored
The unpack routine fails to handle the decompress_method() returning unrecognised decompressor (compress_name == NULL). This results in the routine looping eventually oopsing on an out of bounds memory access. Note this bug is usually hidden, only triggering on trailing junk after one or more correct compressed blocks. The case of the compressed archive being complete junk is (by accident?) caught by the if (state != Reset) check because state is initialised to Start, but not updated due to the decompressor not having been called. Obviously if the junk is trailing a correctly decompressed buffer, state == Reset from the previous call to the decompressor. Signed-off-by: Phillip Lougher <phillip@lougher.demon.co.uk> Reported-by: Aaro Koskinen <aaro.koskinen@iki.fi> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Dan Carpenter authored
The follow_page() function can potentially return -EFAULT so I added checks for this. Also I silenced an uninitialized variable warning on my version of gcc (version 4.3.2). Signed-off-by: Dan Carpenter <error27@gmail.com> Acked-by: Rik van Riel <riel@redhat.com> Acked-by: Izik Eidus <ieidus@redhat.com> Cc: Andrea Arcangeli <aarcange@redhat.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Dmitry Torokhov authored
This is a standalone version of VMware Balloon driver. Ballooning is a technique that allows hypervisor dynamically limit the amount of memory available to the guest (with guest cooperation). In the overcommit scenario, when hypervisor set detects that it needs to shuffle some memory, it instructs the driver to allocate certain number of pages, and the underlying memory gets returned to the hypervisor. Later hypervisor may return memory to the guest by reattaching memory to the pageframes and instructing the driver to "deflate" balloon. We are submitting a standalone driver because KVM maintainer (Avi Kivity) expressed opinion (rightly) that our transport does not fit well into virtqueue paradigm and thus it does not make much sense to integrate with virtio. There were also some concerns whether current ballooning technique is the right thing. If there appears a better framework to achieve this we are prepared to evaluate and switch to using it, but in the meantime we'd like to get this driver upstream. We want to get the driver accepted in distributions so that users do not have to deal with an out-of-tree module and many distributions have "upstream first" requirement. The driver has been shipping for a number of years and users running on VMware platform will have it installed as part of VMware Tools even if it will not come from a distribution, thus there should not be additional risk in pulling the driver into mainline. The driver will only activate if host is VMware so everyone else should not be affected at all. Signed-off-by: Dmitry Torokhov <dtor@vmware.com> Cc: Avi Kivity <avi@redhat.com> Cc: Jeremy Fitzhardinge <jeremy@goop.org> Cc: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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