The revectoring and copying of the P2M only happens when
!auto-xlat and on 64-bit builds. It is not obvious from
the code, so lets have seperate 32 and 64-bit functions.
We also invert the check for auto-xlat to make the code
flow simpler.
Suggested-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
P2M is not available for PVH. Fortunatly for us the
P2M code already has mostly the support for auto-xlat guest thanks to
commit 3d24bbd7dd
"grant-table: call set_phys_to_machine after mapping grant refs"
which: "
introduces set_phys_to_machine calls for auto_translated guests
(even on x86) in gnttab_map_refs and gnttab_unmap_refs.
translated by swiotlb-xen... " so we don't need to muck much.
with above mentioned "commit you'll get set_phys_to_machine calls
from gnttab_map_refs and gnttab_unmap_refs but PVH guests won't do
anything with them " (Stefano Stabellini) which is OK - we want
them to be NOPs.
This is because we assume that an "IOMMU is always present on the
plaform and Xen is going to make the appropriate IOMMU pagetable
changes in the hypercall implementation of GNTTABOP_map_grant_ref
and GNTTABOP_unmap_grant_ref, then eveything should be transparent
from PVH priviligied point of view and DMA transfers involving
foreign pages keep working with no issues[sp]
Otherwise we would need a P2M (and an M2P) for PVH priviligied to
track these foreign pages .. (see arch/arm/xen/p2m.c)."
(Stefano Stabellini).
We still have to inhibit the building of the P2M tree.
That had been done in the past by not calling
xen_build_dynamic_phys_to_machine (which setups the P2M tree
and gives us virtual address to access them). But we are missing
a check for xen_build_mfn_list_list - which was continuing to setup
the P2M tree and would blow up at trying to get the virtual
address of p2m_missing (which would have been setup by
xen_build_dynamic_phys_to_machine).
Hence a check is needed to not call xen_build_mfn_list_list when
running in auto-xlat mode.
Instead of replicating the check for auto-xlat in enlighten.c
do it in the p2m.c code. The reason is that the xen_build_mfn_list_list
is called also in xen_arch_post_suspend without any checks for
auto-xlat. So for PVH or PV with auto-xlat - we would needlessly
allocate space for an P2M tree.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
We don't use the filtering that 'xen_cpuid' is doing
because the hypervisor treats 'XEN_EMULATE_PREFIX' as
an invalid instruction. This means that all of the filtering
will have to be done in the hypervisor/toolstack.
Without the filtering we expose to the guest the:
- cpu topology (sockets, cores, etc);
- the APERF (which the generic scheduler likes to
use), see 5e62625420
"xen/setup: filter APERFMPERF cpuid feature out"
- and the inability to figure out whether MWAIT_LEAF
should be exposed or not. See
df88b2d96e
"xen/enlighten: Disable MWAIT_LEAF so that acpi-pad won't be loaded."
- x2apic, see 4ea9b9aca9
"xen: mask x2APIC feature in PV"
We also check for vector callback early on, as it is a required
feature. PVH also runs at default kernel IOPL.
Finally, pure PV settings are moved to a separate function that are
only called for pure PV, ie, pv with pvmmu. They are also #ifdef
with CONFIG_XEN_PVMMU.
Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Which is a PV guest with auto page translation enabled
and with vector callback. It is a cross between PVHVM and PV.
The Xen side defines PVH as (from docs/misc/pvh-readme.txt,
with modifications):
"* the guest uses auto translate:
- p2m is managed by Xen
- pagetables are owned by the guest
- mmu_update hypercall not available
* it uses event callback and not vlapic emulation,
* IDT is native, so set_trap_table hcall is also N/A for a PVH guest.
For a full list of hcalls supported for PVH, see pvh_hypercall64_table
in arch/x86/hvm/hvm.c in xen. From the ABI prespective, it's mostly a
PV guest with auto translate, although it does use hvm_op for setting
callback vector."
Also we use the PV cpuid, albeit we can use the HVM (native) cpuid.
However, we do have a fair bit of filtering in the xen_cpuid and
we can piggyback on that until the hypervisor/toolstack filters
the appropiate cpuids. Once that is done we can swap over to
use the native one.
We setup a Kconfig entry that is disabled by default and
cannot be enabled.
Note that on ARM the concept of PVH is non-existent. As Ian
put it: "an ARM guest is neither PV nor HVM nor PVHVM.
It's a bit like PVH but is different also (it's further towards
the H end of the spectrum than even PVH).". As such these
options (PVHVM, PVH) are never enabled nor seen on ARM
compilations.
Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Most of the functions in page.h are prefaced with
if (xen_feature(XENFEAT_auto_translated_physmap))
return mfn;
Except the mfn_to_local_pfn. At a first sight, the function
should work without this patch - as the 'mfn_to_mfn' has
a similar check. But there are no such check in the
'get_phys_to_machine' function - so we would crash in there.
This fixes it by following the convention of having the
check for auto-xlat in these static functions.
Signed-off-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Implement all the event channel port ops for the FIFO-based ABI.
If the hypervisor supports the FIFO-based ABI, enable it by
initializing the control block for the boot VCPU and subsequent VCPUs
as they are brought up and on resume. The event array is expanded as
required when event ports are setup.
The 'xen.fifo_events=0' command line option may be used to disable use
of the FIFO-based ABI.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Commit bee980d9e (xen/events: Handle VIRQ_TIMER before any other hardirq
in event loop) effectively made the VIRQ_TIMER the highest priority event
when using the 2-level ABI.
Set the VIRQ_TIMER priority to the highest so this behaviour is retained
when using the FIFO-based ABI.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Add xen_irq_set_priority() to set an event channels priority. This function
will only work with event channel ABIs that support priority (i.e., the
FIFO-based ABI).
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Add the hypercall sub-ops and the structures for the shared data used
in the FIFO-based event channel ABI.
The design document for this new ABI is available here:
http://xenbits.xen.org/people/dvrabel/event-channels-H.pdf
In summary, events are reported using a per-domain shared event array
of event words. Each event word has PENDING, LINKED and MASKED bits
and a LINK field for pointing to the next event in the event queue.
There are 16 event queues (with different priorities) per-VCPU.
Key advantages of this new ABI include:
- Support for over 100,000 events (2^17).
- 16 different event priorities.
- Improved fairness in event latency through the use of FIFOs.
The ABI is available in Xen 4.4 and later.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Remove the check during unbind for NR_EVENT_CHANNELS as this limits
support to less than 4096 ports.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Refactor static array evtchn_to_irq array to be dynamically allocated by
implementing get and set functions for accesses to the array.
Two new port ops are added: max_channels (maximum supported number of
event channels) and nr_channels (number of currently usable event
channels). For the 2-level ABI, these numbers are both the same as
the shared data structure is a fixed size. For the FIFO ABI, these
will be different as the event array is expanded dynamically.
This allows more than 65000 event channels so an unsigned short is no
longer sufficient for an event channel port number and unsigned int is
used instead.
Signed-off-by: Malcolm Crossley <malcolm.crossley@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Add a hook for port-specific setup and call it from
xen_irq_info_common_setup().
The FIFO-based ABIs may need to perform additional setup (expanding
the event array) before a bound event channel can start to receive
events.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
The FIFO-based event ABI requires additional setup of newly bound
events (it may need to expand the event array) and this setup may
fail.
xen_irq_info_common_init() is a useful place to put this setup so
allow this call to fail. This call and the other similar calls are
renamed to be *_setup() to reflect that they may now fail.
This failure can only occur with new event channels not on rebind.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
evtchn_ops contains the low-level operations that access the shared
data structures. This allows alternate ABIs to be supported.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
In preparation for alternative event channel ABIs, move all the
functions accessing the shared data structures into their own file.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
events.c will be split into multiple files so move it into its own
directory.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
In preparation for adding event channel port ops, use set_evtchn()
instead of sync_set_bit().
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
In preparation for adding event channel port ops, add
test_and_set_mask().
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Because the guest-side binding of an event to a VCPU (i.e., setting
the local per-cpu masks) is always explicitly done after an event
channel is bound to a port, there is no need to initialize all
possible events as bound to VCPU 0 at start of day or after a resume.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
These two function did the same thing with different parameters, put
the common bits in retrigger_evtchn().
This changes the return value of resend_irq_on_evtchn() but the only
caller (in arch/ia64/xen/irq_xen.c) ignored the return value so this
is fine.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
We can't include <asm/pci_x86.h> if this isn't x86, and we only need
it if CONFIG_PCI_MMCONFIG is enabled.
Fixes: 8deb3eb146 ('xen/mcfg: Call PHYSDEVOP_pci_mmcfg_reserved for MCFG areas.')
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Replace the code logic at balloon_first_page() by calling
list_first_entry_or_null() directly. since here is only
one user of that routine, therefore we can just remove it.
Signed-off-by: Jie Liu <jeff.liu@oracle.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Reviewed-by: David Vrabel <david.vrabel@citrix.com>
Since c275a57f5e "xen/balloon: Set balloon's initial state to number of
existing RAM pages" the balloon driver appears to work fine on ARM as far as I
can tell. Prior to that commit it was broken because on ARM RAM doesn't
typically start at zero, effectively leaving a big MMIO hole at the start.
This would cause the balloon driver to give away all of RAM at start of day,
which is rather inconvenient.
It was already enabled (or rather not excluded) on ARM64. The
c1d15f5c8b
"xen/balloon: Seperate the auto-translate logic properly (v2)"
added in the proper plumbing to work with ARM and PVH type guests.
Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: David Vrabel <david.vrabel@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
[v2: Added the bit about PVH]
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Since we have xen_has_pv_devices,xen_has_pv_disk_devices,
xen_has_pv_nic_devices, and xen_has_pv_and_legacy_disk_devices
to figure out the different 'unplug' behaviors - lets
use those instead of this single int.
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
The user has the option of disabling the platform driver:
00:02.0 Unassigned class [ff80]: XenSource, Inc. Xen Platform Device (rev 01)
which is used to unplug the emulated drivers (IDE, Realtek 8169, etc)
and allow the PV drivers to take over. If the user wishes
to disable that they can set:
xen_platform_pci=0
(in the guest config file)
or
xen_emul_unplug=never
(on the Linux command line)
except it does not work properly. The PV drivers still try to
load and since the Xen platform driver is not run - and it
has not initialized the grant tables, most of the PV drivers
stumble upon:
input: Xen Virtual Keyboard as /devices/virtual/input/input5
input: Xen Virtual Pointer as /devices/virtual/input/input6M
------------[ cut here ]------------
kernel BUG at /home/konrad/ssd/konrad/linux/drivers/xen/grant-table.c:1206!
invalid opcode: 0000 [#1] SMP
Modules linked in: xen_kbdfront(+) xenfs xen_privcmd
CPU: 6 PID: 1389 Comm: modprobe Not tainted 3.13.0-rc1upstream-00021-ga6c892b-dirty #1
Hardware name: Xen HVM domU, BIOS 4.4-unstable 11/26/2013
RIP: 0010:[<ffffffff813ddc40>] [<ffffffff813ddc40>] get_free_entries+0x2e0/0x300
Call Trace:
[<ffffffff8150d9a3>] ? evdev_connect+0x1e3/0x240
[<ffffffff813ddd0e>] gnttab_grant_foreign_access+0x2e/0x70
[<ffffffffa0010081>] xenkbd_connect_backend+0x41/0x290 [xen_kbdfront]
[<ffffffffa0010a12>] xenkbd_probe+0x2f2/0x324 [xen_kbdfront]
[<ffffffff813e5757>] xenbus_dev_probe+0x77/0x130
[<ffffffff813e7217>] xenbus_frontend_dev_probe+0x47/0x50
[<ffffffff8145e9a9>] driver_probe_device+0x89/0x230
[<ffffffff8145ebeb>] __driver_attach+0x9b/0xa0
[<ffffffff8145eb50>] ? driver_probe_device+0x230/0x230
[<ffffffff8145eb50>] ? driver_probe_device+0x230/0x230
[<ffffffff8145cf1c>] bus_for_each_dev+0x8c/0xb0
[<ffffffff8145e7d9>] driver_attach+0x19/0x20
[<ffffffff8145e260>] bus_add_driver+0x1a0/0x220
[<ffffffff8145f1ff>] driver_register+0x5f/0xf0
[<ffffffff813e55c5>] xenbus_register_driver_common+0x15/0x20
[<ffffffff813e76b3>] xenbus_register_frontend+0x23/0x40
[<ffffffffa0015000>] ? 0xffffffffa0014fff
[<ffffffffa001502b>] xenkbd_init+0x2b/0x1000 [xen_kbdfront]
[<ffffffff81002049>] do_one_initcall+0x49/0x170
.. snip..
which is hardly nice. This patch fixes this by having each
PV driver check for:
- if running in PV, then it is fine to execute (as that is their
native environment).
- if running in HVM, check if user wanted 'xen_emul_unplug=never',
in which case bail out and don't load any PV drivers.
- if running in HVM, and if PCI device 5853:0001 (xen_platform_pci)
does not exist, then bail out and not load PV drivers.
- (v2) if running in HVM, and if the user wanted 'xen_emul_unplug=ide-disks',
then bail out for all PV devices _except_ the block one.
Ditto for the network one ('nics').
- (v2) if running in HVM, and if the user wanted 'xen_emul_unplug=unnecessary'
then load block PV driver, and also setup the legacy IDE paths.
In (v3) make it actually load PV drivers.
Reported-by: Sander Eikelenboom <linux@eikelenboom.it
Reported-by: Anthony PERARD <anthony.perard@citrix.com>
Reported-and-Tested-by: Fabio Fantoni <fabio.fantoni@m2r.biz>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
[v2: Add extra logic to handle the myrid ways 'xen_emul_unplug'
can be used per Ian and Stefano suggestion]
[v3: Make the unnecessary case work properly]
[v4: s/disks/ide-disks/ spotted by Fabio]
Reviewed-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com> [for PCI parts]
CC: stable@vger.kernel.org
Another smallish batch of fixes, it's been quiet due to the holidays. Nothing
controversial here, a handful of things across the board.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.11 (GNU/Linux)
iQIcBAABAgAGBQJSwENxAAoJEIwa5zzehBx366gP/0qFx9RVr+PaRSR3faIWZ0+l
qOCoOJ4604aE7H9blhUOz7VoWMUfqy7vRnr5Brms73lNZGztBzIiS1bte7qRiHtQ
QZr7rV9hZpy4G7aiGWHT2wkqDSYlJb0mmb5Kxn72KznWmuod3alOVfeqtgGRDJD4
YnUAlI10KpGcYYQ2d6jwCvb/KBQrlufrxxRirgzm13JmiU2CzGpPWDpSx6E1/bQ6
4I8rzHehg2n0FQHIhNDsmSTbsRSPsVjRZ5iMZ4kh7PBSrHuwaLLSyKKf3P8cjGRe
dhdN06XLZCAk5JUIt6oQWN3XGq217cIDZyQKz4wapPIc2Do/MAWKhmad6JbJTJxO
nk/j/VJamAGKjh6OG5+BVVV1KAqwkY4zKKN4lSbV17NLxu6TlA3Jq0vTpCNCMDiQ
xuLgBifPyhJIlJKUAnc1Ev+DrNVOrRsq6keosayKHyeH3nW6mPTzTppHjLPNSI//
WYjbqqs7Pu1MzQgp11C4fIj5xeSpqvdUpQIYolJq51MyL5QGub7H28/jR0rU9sN1
1R9quyB53Z2RLSWV84o4j8qmlQwwu9v94KPkJ6Rkr1IU8a4WqRkAGTjbXAhEBAnb
FQ8uLBzaJbifWXmsnmcI4M5gm4HF4iJv+5J/l3hj7W/4l3B2XfKbyzBnEfJT1PFC
mSjTK4WRhemgztif285m
=FX+j
-----END PGP SIGNATURE-----
Merge tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Olof Johansson:
"Another smallish batch of fixes, it's been quiet due to the holidays.
Nothing controversial here, a handful of things across the board"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: pxa: fix USB gadget driver compilation regression
ARM: OMAP2+: Fix LCD panel backlight regression for LDP legacy booting
ARM: OMAP2+: hwmod_data: fix missing OMAP_INTC_START in irq data
ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL
ARM: shmobile: r8a7790: fix shdi resource sizes
ARM: shmobile: bockw: fixup DMA mask
ARM: shmobile: armadillo: Add PWM backlight power supply
Pull x86 fixes from Peter Anvin:
"There is a small EFI fix and a big power regression fix in this batch.
My queue also had a fix for downing a CPU when there are insufficient
number of IRQ vectors available, but I'm holding that one for now due
to recent bug reports"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/efi: Don't select EFI from certain special ACPI drivers
x86 idle: Repair large-server 50-watt idle-power regression
- Fix for a cpufreq regression causing stale sysfs files to be left
behind during system resume if cpufreq_add_dev() fails for one or
more CPUs from Viresh Kumar.
- Fix for a bug in cpufreq causing CONFIG_CPU_FREQ_DEFAULT_* to be
ignored when the intel_pstate driver is used from Jason Baron.
- System suspend fix for a memory leak in pm_vt_switch_unregister()
that forgot to release objects after removing them from
pm_vt_switch_list. From Masami Ichikawa.
- Intel Valley View device ID and energy unit encoding update for the
(recently added) Intel RAPL (Running Average Power Limit) driver
from Jacob Pan.
- Intel Bay Trail SoC GPIO and ACPI device IDs for the Low Power
Subsystem (LPSS) ACPI driver from Paul Drews.
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)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=vQDX
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-3.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management fixes and new device IDs from Rafael Wysocki:
- Fix for a cpufreq regression causing stale sysfs files to be left
behind during system resume if cpufreq_add_dev() fails for one or
more CPUs from Viresh Kumar.
- Fix for a bug in cpufreq causing CONFIG_CPU_FREQ_DEFAULT_* to be
ignored when the intel_pstate driver is used from Jason Baron.
- System suspend fix for a memory leak in pm_vt_switch_unregister()
that forgot to release objects after removing them from
pm_vt_switch_list. From Masami Ichikawa.
- Intel Valley View device ID and energy unit encoding update for the
(recently added) Intel RAPL (Running Average Power Limit) driver from
Jacob Pan.
- Intel Bay Trail SoC GPIO and ACPI device IDs for the Low Power
Subsystem (LPSS) ACPI driver from Paul Drews.
* tag 'pm+acpi-3.13-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
powercap / RAPL: add support for ValleyView Soc
PM / sleep: Fix memory leak in pm_vt_switch_unregister().
cpufreq: Use CONFIG_CPU_FREQ_DEFAULT_* to set initial policy for setpolicy drivers
cpufreq: remove sysfs files for CPUs which failed to come back after resume
ACPI: Add BayTrail SoC GPIO and LPSS ACPI IDs
the sparse IRQ conversion, fix DRA7 console output for earlyprintk,
and fix the LDP LCD backlight when DSS is built into the kernel and
not as a loadable module.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)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=3A1e
-----END PGP SIGNATURE-----
Merge tag 'omap-for-v3.13/intc-ldp-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
Fix a regression for wrong interrupt numbers for some devices after
the sparse IRQ conversion, fix DRA7 console output for earlyprintk,
and fix the LDP LCD backlight when DSS is built into the kernel and
not as a loadable module.
* tag 'omap-for-v3.13/intc-ldp-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: Fix LCD panel backlight regression for LDP legacy booting
ARM: OMAP2+: hwmod_data: fix missing OMAP_INTC_START in irq data
ARM: DRA7: hwmod: Fix boot crash with DEBUG_LL
+ v3.13-rc5
Signed-off-by: Olof Johansson <olof@lixom.net>
* r8a7790 (R-Car H2) based Lager board
- Correct SHDI resource sizes
This bug has been present since sdhi resources were added to the r8a7790 by
8c9b1aa418 ("ARM: shmobile: r8a7790: add MMCIF and SDHI DT
templates") in v3.11-rc2.
* r8a7778 (R-Car M1) based Bock-W board
- Correct DMA mask
This resolves a regression introduced by 4dcfa60071
("ARM: DMA-API: better handing of DMA masks for coherent allocations")
in v3.12-rc1.
* r8a7740 (R-Mobile A1) based Armadillo board
- Add PWM backlight power supply
This resolves a regression introduced by 22ceeee16e
("pwm-backlight: Add power supply support") in v3.12.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=6ai1
-----END PGP SIGNATURE-----
Merge tag 'renesas-fixes2-for-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas into fixes
From Simon Horman:
Second Round of Renesas ARM based SoC Fixes for v3.13
* r8a7790 (R-Car H2) based Lager board
- Correct SHDI resource sizes
This bug has been present since sdhi resources were added to the r8a7790 by
8c9b1aa418 ("ARM: shmobile: r8a7790: add MMCIF and SDHI DT
templates") in v3.11-rc2.
* r8a7778 (R-Car M1) based Bock-W board
- Correct DMA mask
This resolves a regression introduced by 4dcfa60071
("ARM: DMA-API: better handing of DMA masks for coherent allocations")
in v3.12-rc1.
* r8a7740 (R-Mobile A1) based Armadillo board
- Add PWM backlight power supply
This resolves a regression introduced by 22ceeee16e
("pwm-backlight: Add power supply support") in v3.12.
* tag 'renesas-fixes2-for-v3.13' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: r8a7790: fix shdi resource sizes
ARM: shmobile: bockw: fixup DMA mask
ARM: shmobile: armadillo: Add PWM backlight power supply
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Olof Johansson <olof@lixom.net>
After commit 88f718e3fa
"ARM: pxa: delete the custom GPIO header" a compilation
error was introduced in the PXA25x gadget driver.
An attempt to fix the problem was made in
commit b144e4ab1e
"usb: gadget: fix pxa25x compilation problems"
by explictly stating the driver needs the <mach/hardware.h>
header, which solved the compilation for a few boards,
such as the pxa255-idp and its defconfig.
However the Lubbock board has this special clause in
drivers/usb/gadget/pxa25x_udc.c:
This include file has an implicit dependency on
<mach/irqs.h> having been included before <mach/lubbock.h>
was included.
Before commit 88f718e3fa
"ARM: pxa: delete the custom GPIO header" this implicit
dependency for the pxa25x_udc compile on the Lubbock was
satisfied by <linux/gpio.h> implicitly including
<mach/gpio.h> which was in turn including <mach/irqs.h>,
apart from the earlier added <mach/hardware.h>.
Fix this by having the PXA25x <mach/lubbock.h> explicitly
include <mach/irqs.h>.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Greg Kroah-Hartmann <gregkh@linuxfoundation.org>
Cc: Felipe Balbi <balbi@ti.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Haojian Zhuang <haojian.zhuang@gmail.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
problems with GPMC, RNG, and ISP/IVA MMUs on OMAP2/3. The other fixes
some problems with DEBUG_LL on DRA7xx.
Basic build, boot, and PM test logs are available here:
http://www.pwsan.com/omap/testlogs/hwmod_fixes_b_v3.13-rc/20131226021920/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)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=kOrX
-----END PGP SIGNATURE-----
Merge tag 'for-v3.13-rc/hwmod-fixes-b' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into debug-ll-and-ldp-backlight-fix
A few OMAP hwmod fixes for v3.13-rc. One patch fixes some IRQ
problems with GPMC, RNG, and ISP/IVA MMUs on OMAP2/3. The other fixes
some problems with DEBUG_LL on DRA7xx.
Basic build, boot, and PM test logs are available here:
http://www.pwsan.com/omap/testlogs/hwmod_fixes_b_v3.13-rc/20131226021920/
Looks like the LCD panel on LDP has been broken quite a while, and
recently got fixed by commit 0b2aa8bed3 (gpio: twl4030: Fix regression
for twl gpio output). However, there's still an issue left where the panel
backlight does not come on if the LCD drivers are built into the
kernel.
Fix the issue by registering the DPI LCD panel only after the twl4030
GPIO has probed.
Reported-by: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
[tony@atomide.com: updated per Tomi's comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
* pm-cpufreq:
cpufreq: Use CONFIG_CPU_FREQ_DEFAULT_* to set initial policy for setpolicy drivers
cpufreq: remove sysfs files for CPUs which failed to come back after resume
* pm-sleep:
PM / sleep: Fix memory leak in pm_vt_switch_unregister().
and a patch so that instead of BUG'ing we use the ext4_error()
framework to mark the file system is corrupted.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.15 (GNU/Linux)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=KPNa
-----END PGP SIGNATURE-----
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 fixes from Ted Ts'o:
"A collection of bug fixes destined for stable and some printk cleanups
and a patch so that instead of BUG'ing we use the ext4_error()
framework to mark the file system is corrupted"
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4:
ext4: add explicit casts when masking cluster sizes
ext4: fix deadlock when writing in ENOSPC conditions
jbd2: rename obsoleted msg JBD->JBD2
jbd2: revise KERN_EMERG error messages
jbd2: don't BUG but return ENOSPC if a handle runs out of space
ext4: Do not reserve clusters when fs doesn't support extents
ext4: fix del_timer() misuse for ->s_err_report
ext4: check for overlapping extents in ext4_valid_extent_entries()
ext4: fix use-after-free in ext4_mb_new_blocks
ext4: call ext4_error_inode() if jbd2_journal_dirty_metadata() fails
Commit 7d7e1eb (ARM: OMAP2+: Prepare for irqs.h removal) and commit
ec2c082 (ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQ)
updated the way interrupts for OMAP2/3 devices are defined in the
HWMOD data structures to being an index plus a fixed offset (defined
by OMAP_INTC_START).
Couple of irqs in the OMAP2/3 hwmod data were misconfigured completely
as they were missing this OMAP_INTC_START relative offset. Add this
offset back to fix the incorrect irq data for the following modules:
OMAP2 - GPMC, RNG
OMAP3 - GPMC, ISP MMU & IVA MMU
Signed-off-by: Suman Anna <s-anna@ti.com>
Fixes: 7d7e1eba7e ("ARM: OMAP2+: Prepare for irqs.h removal")
Fixes: ec2c0825ca ("ARM: OMAP2+: Remove hardcoded IRQs and enable SPARSE_IRQ")
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Paul Walmsley <paul@pwsan.com>
With commit '7dedd34: ARM: OMAP2+: hwmod: Fix a crash in _setup_reset() with
DEBUG_LL' we moved from parsing cmdline to identify uart used for earlycon
to using the requsite hwmod CONFIG_DEBUG_OMAPxUARTy FLAGS.
On DRA7 though, we seem to be missing this flag, and atleast on the DRA7 EVM
where we use uart1 for console, boot fails with DEBUG_LL enabled.
Reported-by: Lokesh Vutla <lokeshvutla@ti.com>
Tested-by: Lokesh Vutla <lokeshvutla@ti.com> # on a different base
Signed-off-by: Rajendra Nayak <rnayak@ti.com>
Fixes: 7dedd34694 ("ARM: OMAP2+: hwmod: Fix a crash in _setup_reset() with DEBUG_LL")
Signed-off-by: Paul Walmsley <paul@pwsan.com>
Pull block fixes from Jens Axboe:
- fix for a memory leak on certain unplug events
- a collection of bcache fixes from Kent and Nicolas
- a few null_blk fixes and updates form Matias
- a marking of static of functions in the stec pci-e driver
* 'for-linus' of git://git.kernel.dk/linux-block:
null_blk: support submit_queues on use_per_node_hctx
null_blk: set use_per_node_hctx param to false
null_blk: corrections to documentation
null_blk: warning on ignored submit_queues param
null_blk: refactor init and init errors code paths
null_blk: documentation
null_blk: mem garbage on NUMA systems during init
drivers: block: Mark the functions as static in skd_main.c
bcache: New writeback PD controller
bcache: bugfix for race between moving_gc and bucket_invalidate
bcache: fix for gc and writeback race
bcache: bugfix - moving_gc now moves only correct buckets
bcache: fix for gc crashing when no sectors are used
bcache: Fix heap_peek() macro
bcache: Fix for can_attach_cache()
bcache: Fix dirty_data accounting
bcache: Use uninterruptible sleep in writeback
bcache: kthread don't set writeback task to INTERUPTIBLE
block: fix memory leaks on unplugging block device
bcache: fix sparse non static symbol warning
Pull cgroup fixes from Tejun Heo:
"Two fixes. One fixes a bug in the error path of cgroup_create(). The
other changes cgrp->id lifetime rule so that the id doesn't get
recycled before all controller states are destroyed. This premature
id recycling made memcg malfunction"
* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: don't recycle cgroup id until all csses' have been destroyed
cgroup: fix cgroup_create() error handling path
Pull percpu fix from Tejun Heo:
"A single commit to fix a spurious sparse warning coming from
DEFINE_PER_CPU()'s hack to support the use of weak symbols. Shouldn't
cause observable behavior change"
* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu:
percpu: fix spurious sparse warnings from DEFINE_PER_CPU()
Pull libata fixes from Tejun Heo:
"There's one interseting commit - "libata, freezer: avoid block device
removal while system is frozen". It's an ugly hack working around a
deadlock condition between driver core resume and block layer device
removal paths through freezer which was made more reproducible by
writeback being converted to workqueue some releases ago. The bug has
nothing to do with libata but it's just an workaround which is easy to
backport. After discussion, Rafael and I seem to agree that we don't
really need kernel freezables - both kthread and workqueue. There are
few specific workqueues which constitute PM operations and require
freezing, which will be converted to use workqueue_set_max_active()
instead. All other kernel freezer uses are planned to be removed,
followed by the removal of kthread and workqueue freezer support,
hopefully.
Others are device-specific fixes. The most notable is the addition of
NO_NCQ_TRIM which is used to disable queued TRIM commands to Micro
M500 SSDs which otherwise suffers data corruption"
* 'for-3.13-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata:
libata, freezer: avoid block device removal while system is frozen
libata: implement ATA_HORKAGE_NO_NCQ_TRIM and apply it to Micro M500 SSDs
libata: disable a disk via libata.force params
ahci: bail out on ICH6 before using AHCI BAR
ahci: imx: Explicitly clear IMX6Q_GPR13_SATA_MPLL_CLK_EN
libata: add ATA_HORKAGE_BROKEN_FPDMA_AA quirk for Seagate Momentus SpinPoint M8
Pull ext2 fix from Jan Kara:
"One simple fix of oops in ext2 which was recently hit by Christoph"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
ext2: Fix oops in ext2_get_block() called from ext2_quota_write()
- Additional checks for uverbs to ensure forward compatibility, handle
malformed input better.
- Fix potential use-after-free in iWARP connection manager.
- Make a function static.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=bol6
-----END PGP SIGNATURE-----
Merge tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband
Pull infiniband fixes from Roland Dreier:
"Last batch of InfiniBand/RDMA changes for 3.13 / 2014:
- Additional checks for uverbs to ensure forward compatibility,
handle malformed input better.
- Fix potential use-after-free in iWARP connection manager.
- Make a function static"
* tag 'rdma-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
IB/uverbs: Check access to userspace response buffer in extended command
IB/uverbs: Check input length in flow steering uverbs
IB/uverbs: Set error code when fail to consume all flow_spec items
IB/uverbs: Check reserved fields in create_flow
IB/uverbs: Check comp_mask in destroy_flow
IB/uverbs: Check reserved field in extended command header
IB/uverbs: New macro to set pointers to NULL if length is 0 in INIT_UDATA()
IB/core: const'ify inbuf in struct ib_udata
RDMA/iwcm: Don't touch cm_id after deref in rem_ref
RDMA/cxgb4: Make _c4iw_write_mem_dma() static
selinux_setprocattr() does ptrace_parent(p) under task_lock(p),
but task_struct->alloc_lock doesn't pin ->parent or ->ptrace,
this looks confusing and triggers the "suspicious RCU usage"
warning because ptrace_parent() does rcu_dereference_check().
And in theory this is wrong, spin_lock()->preempt_disable()
doesn't necessarily imply rcu_read_lock() we need to access
the ->parent.
Reported-by: Evan McNabb <emcnabb@redhat.com>
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paul Moore <pmoore@redhat.com>
Konrad Rzeszutek Wilk