Pull x86/xsave changes from Peter Anvin:
"This is a patchset to support the XSAVES instruction required to
support context switch of supervisor-only features in upcoming
silicon.
This patchset missed the 3.16 merge window, which is why it is based
on 3.15-rc7"
* 'x86-xsave-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, xsave: Add forgotten inline annotation
x86/xsaves: Clean up code in xstate offsets computation in xsave area
x86/xsave: Make it clear that the XSAVE macros use (%edi)/(%rdi)
Define kernel API to get address of each state in xsave area
x86/xsaves: Enable xsaves/xrstors
x86/xsaves: Call booting time xsaves and xrstors in setup_init_fpu_buf
x86/xsaves: Save xstate to task's xsave area in __save_fpu during booting time
x86/xsaves: Add xsaves and xrstors support for booting time
x86/xsaves: Clear reserved bits in xsave header
x86/xsaves: Use xsave/xrstor for saving and restoring user space context
x86/xsaves: Use xsaves/xrstors for context switch
x86/xsaves: Use xsaves/xrstors to save and restore xsave area
x86/xsaves: Define a macro for handling xsave/xrstor instruction fault
x86/xsaves: Define macros for xsave instructions
x86/xsaves: Change compacted format xsave area header
x86/alternative: Add alternative_input_2 to support alternative with two features and input
x86/xsaves: Add a kernel parameter noxsaves to disable xsaves/xrstors
Just a couple of minor static analysis fixes, removal of a NULL check
that should never happen, and fix an error check where an unsigned value
was being checked to see if it was negative.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=3kq/
-----END PGP SIGNATURE-----
Merge tag 'metag-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag
Pull metag architecture updates from James Hogan:
"Just a couple of minor static analysis fixes, removal of a NULL check
that should never happen, and fix an error check where an unsigned
value was being checked to see if it was negative"
* tag 'metag-for-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/metag:
metag: cachepart: Fix failure check
metag: hugetlbpage: Remove null pointer checks that could never happen
Add tracepoint to track hugepage invalidate. This help us
in debugging difficult to track bugs.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
On ppc64 we support 4K hash pte with 64K page size. That requires
us to track the hash pte slot information on a per 4k basis. We do that
by storing the slot details in the second half of pte page. The pte bit
_PAGE_COMBO is used to indicate whether the second half need to be
looked while building real_pte. We need to use read memory barrier while
doing that so that load of hidx is not reordered w.r.t _PAGE_COMBO
check. On the store side we already do a lwsync in __hash_page_4K
CC: <stable@vger.kernel.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
We would get wrong results in compiler recomputed old_pmd. Avoid
that by using ACCESS_ONCE
CC: <stable@vger.kernel.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
As per ISA, for 4k base page size we compare 14..65 bits of VA specified
with the entry_VA in tlb. That implies we need to make sure we do a
tlbie with all the possible 4k va we used to access the 16MB hugepage.
With 64k base page size we compare 14..57 bits of VA. Hence we cannot
ignore the lower 24 bits of va while tlbie .We also cannot tlb
invalidate a 16MB entry with just one tlbie instruction because
we don't track which va was used to instantiate the tlb entry.
CC: <stable@vger.kernel.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
If we changed base page size of the segment, either via sub_page_protect
or via remap_4k_pfn, we do a demote_segment which doesn't flush the hash
table entries. We do a lazy hash page table flush for all mapped pages
in the demoted segment. This happens when we handle hash page fault for
these pages.
We use _PAGE_COMBO bit along with _PAGE_HASHPTE to indicate whether a
pte is backed by 4K hash pte. If we find _PAGE_COMBO not set on the pte,
that implies that we could possibly have older 64K hash pte entries in
the hash page table and we need to invalidate those entries.
Use _PAGE_COMBO to determine the page size with which we should
invalidate the hash table entries on unmap.
CC: <stable@vger.kernel.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
If we changed base page size of the segment, either via sub_page_protect
or via remap_4k_pfn, we do a demote_segment which doesn't flush the hash
table entries. We do a lazy hash page table flush for all mapped pages
in the demoted segment. This happens when we handle hash page fault
for these pages.
We use _PAGE_COMBO bit along with _PAGE_HASHPTE to indicate whether a
pte is backed by 4K hash pte. If we find _PAGE_COMBO not set on the pte,
that implies that we could possibly have older 64K hash pte entries in
the hash page table and we need to invalidate those entries.
Handle this correctly for 16M pages
CC: <stable@vger.kernel.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The segment identifier and segment size will remain the same in
the loop, So we can compute it outside. We also change the
hugepage_invalidate interface so that we can use it the later patch
CC: <stable@vger.kernel.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
With hugepages, we store the hpte valid information in the pte page
whose address is stored in the second half of the PMD. Use a
write barrier to make sure clearing pmd busy bit and updating
hpte valid info are ordered properly.
CC: <stable@vger.kernel.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
There is an issue currently where NUMA information is used on powerpc
(and possibly ia64) before it has been read from the device-tree, which
leads to large slab consumption with CONFIG_SLUB and memoryless nodes.
NUMA powerpc non-boot CPU's cpu_to_node/cpu_to_mem is only accurate
after start_secondary(), similar to ia64, which is invoked via
smp_init().
Commit 6ee0578b4d ("workqueue: mark init_workqueues() as
early_initcall()") made init_workqueues() be invoked via
do_pre_smp_initcalls(), which is obviously before the secondary
processors are online.
Additionally, the following commits changed init_workqueues() to use
cpu_to_node to determine the node to use for kthread_create_on_node:
bce903809a ("workqueue: add wq_numa_tbl_len and
wq_numa_possible_cpumask[]")
f3f90ad469 ("workqueue: determine NUMA node of workers accourding to
the allowed cpumask")
Therefore, when init_workqueues() runs, it sees all CPUs as being on
Node 0. On LPARs or KVM guests where Node 0 is memoryless, this leads to
a high number of slab deactivations
(http://www.spinics.net/lists/linux-mm/msg67489.html).
Fix this by initializing the powerpc-specific CPU<->node/local memory
node mapping as early as possible, which on powerpc is
do_init_bootmem(). Currently that function initializes the mapping for
the boot CPU, but we extend it to setup the mapping for all possible
CPUs. Then, in smp_prepare_cpus(), we can correspondingly set the
per-cpu values for all possible CPUs. That ensures that before the
early_initcalls run (and really as early as possible), the per-cpu NUMA
mapping is accurate.
While testing memoryless nodes on PowerKVM guests with a fix to the
workqueue logic to use cpu_to_mem() instead of cpu_to_node(), with a
guest topology of:
available: 2 nodes (0-1)
node 0 cpus: 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49
node 0 size: 0 MB
node 0 free: 0 MB
node 1 cpus: 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99
node 1 size: 16336 MB
node 1 free: 15329 MB
node distances:
node 0 1
0: 10 40
1: 40 10
the slab consumption decreases from
Slab: 932416 kB
SUnreclaim: 902336 kB
to
Slab: 395264 kB
SUnreclaim: 359424 kB
And we a corresponding increase in the slab efficiency from
slab mem objs slabs
used active active
------------------------------------------------------------
kmalloc-16384 337 MB 11.28% 100.00%
task_struct 288 MB 9.93% 100.00%
to
slab mem objs slabs
used active active
------------------------------------------------------------
kmalloc-16384 37 MB 100.00% 100.00%
task_struct 31 MB 100.00% 100.00%
Powerpc didn't support memoryless nodes until recently (64bb80d87f
"powerpc/numa: Enable CONFIG_HAVE_MEMORYLESS_NODES" and 8c27226119
"powerpc/numa: Enable USE_PERCPU_NUMA_NODE_ID"). Those commits also
helped improve memory consumption with these kind of environments.
Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Free memory allocated using kmem_cache_zalloc using kmem_cache_free
rather than kfree.
The Coccinelle semantic patch that makes this change is as follows:
// <smpl>
@@
expression x,E,c;
@@
x = \(kmem_cache_alloc\|kmem_cache_zalloc\|kmem_cache_alloc_node\)(c,...)
... when != x = E
when != &x
?-kfree(x)
+kmem_cache_free(c,x)
// </smpl>
Signed-off-by: Himangi Saraogi <himangi774@gmail.com>
Acked-by: Julia Lawall <julia.lawall@lip6.fr>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
A buffer returned by H_VTERM_PARTNER_INFO contains device information
in big endian format, causing problems for little endian architectures.
This patch ensures that they are in cpu endian.
Signed-off-by: Thomas Falcon <tlfalcon@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
xmon only soft disables interrupts. This seems like a bad idea - we
certainly don't want decrementer and PMU exceptions going off when
we are debugging something inside xmon.
This issue was uncovered when the hard lockup detector went off
inside xmon. To ensure we wont get a spurious hard lockup warning,
I also call touch_nmi_watchdog() when exiting xmon.
Signed-off-by: Anton Blanchard <anton@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
It appears that commits 7f06f21d40 ("powerpc/tm: Add checking to
treclaim/trechkpt") and e4e3812150 ("KVM: PPC: Book3S HV: Add
transactional memory support") both added definitions of TEXASR_FS.
Remove one of them. At the same time, fix the alignment of the remaining
definition (should be tab-separated like the rest of the #defines).
Signed-off-by: Nishanth Aravamudan <nacc@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Avoids this warning:
arch/powerpc/boot/gunzip_util.c:118:9: warning: comparison of distinct pointer types lacks a cast
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
PowerNV platform is capable of capturing host memory region when system
crashes (because of host/firmware). We have new OPAL API to register/
unregister memory region to be captured when system crashes.
This patch adds support for new API. Also during boot time we register
kernel log buffer and unregister before doing kexec.
Signed-off-by: Vasant Hegde <hegdevasant@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
We have been a bit slack about updating the CPU_FTRS_POSSIBLE and
CPU_FTRS_ALWAYS masks. When we added POWER8, and also POWER8E we forgot
to update the ALWAYS mask. And when we added POWER8_DD1 we forgot to
update both the POSSIBLE and ALWAYS masks.
Luckily this hasn't caused any actual bugs AFAICS. Failing to update the
ALWAYS mask just forgoes a potential optimisation opportunity. Failing
to update the POSSIBLE mask for POWER8_DD1 is also OK because it only
removes a bit rather than adding any.
Regardless they should all be in both masks so as to avoid any future
bugs when the set of ALWAYS/POSSIBLE bits changes, or the masks
themselves change.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Michael Neuling <mikey@neuling.org>
Acked-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This patch disables the branch target address CAM which under specific
circumstances may cause the processor to skip execution of 1-4
instructions. This fixes IBM Erratum #47.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
When we take full hotplug to recover from EEH errors, PCI buses
could be involved. For the case, the child devices of involved
PCI buses can't be attached to IOMMU group properly, which is
caused by commit 3f28c5a ("powerpc/powernv: Reduce multi-hit of
iommu_add_device()").
When adding the PCI devices of the newly created PCI buses to
the system, the IOMMU group is expected to be added in (C).
(A) fails to bind the IOMMU group because bus->is_added is
false. (B) fails because the device doesn't have binding IOMMU
table yet. bus->is_added is set to true at end of (C) and
pdev->is_added is set to true at (D).
pcibios_add_pci_devices()
pci_scan_bridge()
pci_scan_child_bus()
pci_scan_slot()
pci_scan_single_device()
pci_scan_device()
pci_device_add()
pcibios_add_device() A: Ignore
device_add() B: Ignore
pcibios_fixup_bus()
pcibios_setup_bus_devices()
pcibios_setup_device() C: Hit
pcibios_finish_adding_to_bus()
pci_bus_add_devices()
pci_bus_add_device() D: Add device
If the parent PCI bus isn't involved in hotplug, the IOMMU
group is expected to be bound in (B). (A) should fail as the
sysfs entries aren't populated.
The patch fixes the issue by reverting commit 3f28c5a and remove
WARN_ON() in iommu_add_device() to allow calling the function
even the specified device already has associated IOMMU group.
Cc: <stable@vger.kernel.org> # 3.16+
Reported-by: Thadeu Lima de Souza Cascardo <cascardo@linux.vnet.ibm.com>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Acked-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Similar to the previous commit which described why we need to add a
barrier to arch_spin_is_locked(), we have a similar problem with
spin_unlock_wait().
We need a barrier on entry to ensure any spinlock we have previously
taken is visibly locked prior to the load of lock->slock.
It's also not clear if spin_unlock_wait() is intended to have ACQUIRE
semantics. For now be conservative and add a barrier on exit to give it
ACQUIRE semantics.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The kernel defines the function spin_is_locked(), which can be used to
check if a spinlock is currently locked.
Using spin_is_locked() on a lock you don't hold is obviously racy. That
is, even though you may observe that the lock is unlocked, it may become
locked at any time.
There is (at least) one exception to that, which is if two locks are
used as a pair, and the holder of each checks the status of the other
before doing any update.
Assuming *A and *B are two locks, and *COUNTER is a shared non-atomic
value:
The first CPU does:
spin_lock(*A)
if spin_is_locked(*B)
# nothing
else
smp_mb()
LOAD r = *COUNTER
r++
STORE *COUNTER = r
spin_unlock(*A)
And the second CPU does:
spin_lock(*B)
if spin_is_locked(*A)
# nothing
else
smp_mb()
LOAD r = *COUNTER
r++
STORE *COUNTER = r
spin_unlock(*B)
Although this is a strange locking construct, it should work.
It seems to be understood, but not documented, that spin_is_locked() is
not a memory barrier, so in the examples above and below the caller
inserts its own memory barrier before acting on the result of
spin_is_locked().
For now we assume spin_is_locked() is implemented as below, and we break
it out in our examples:
bool spin_is_locked(*LOCK) {
LOAD l = *LOCK
return l.locked
}
Our intuition is that there should be no problem even if the two code
sequences run simultaneously such as:
CPU 0 CPU 1
==================================================
spin_lock(*A) spin_lock(*B)
LOAD b = *B LOAD a = *A
if b.locked # true if a.locked # true
# nothing # nothing
spin_unlock(*A) spin_unlock(*B)
If one CPU gets the lock before the other then it will do the update and
the other CPU will back off:
CPU 0 CPU 1
==================================================
spin_lock(*A)
LOAD b = *B
spin_lock(*B)
if b.locked # false LOAD a = *A
else if a.locked # true
smp_mb() # nothing
LOAD r1 = *COUNTER spin_unlock(*B)
r1++
STORE *COUNTER = r1
spin_unlock(*A)
However in reality spin_lock() itself is not indivisible. On powerpc we
implement it as a load-and-reserve and store-conditional.
Ignoring the retry logic for the lost reservation case, it boils down to:
spin_lock(*LOCK) {
LOAD l = *LOCK
l.locked = true
STORE *LOCK = l
ACQUIRE_BARRIER
}
The ACQUIRE_BARRIER is required to give spin_lock() ACQUIRE semantics as
defined in memory-barriers.txt:
This acts as a one-way permeable barrier. It guarantees that all
memory operations after the ACQUIRE operation will appear to happen
after the ACQUIRE operation with respect to the other components of
the system.
On modern powerpc systems we use lwsync for ACQUIRE_BARRIER. lwsync is
also know as "lightweight sync", or "sync 1".
As described in Power ISA v2.07 section B.2.1.1, in this scenario the
lwsync is not the barrier itself. It instead causes the LOAD of *LOCK to
act as the barrier, preventing any loads or stores in the locked region
from occurring prior to the load of *LOCK.
Whether this behaviour is in accordance with the definition of ACQUIRE
semantics in memory-barriers.txt is open to discussion, we may switch to
a different barrier in future.
What this means in practice is that the following can occur:
CPU 0 CPU 1
==================================================
LOAD a = *A LOAD b = *B
a.locked = true b.locked = true
LOAD b = *B LOAD a = *A
STORE *A = a STORE *B = b
if b.locked # false if a.locked # false
else else
smp_mb() smp_mb()
LOAD r1 = *COUNTER LOAD r2 = *COUNTER
r1++ r2++
STORE *COUNTER = r1
STORE *COUNTER = r2 # Lost update
spin_unlock(*A) spin_unlock(*B)
That is, the load of *B can occur prior to the store that makes *A
visibly locked. And similarly for CPU 1. The result is both CPUs hold
their lock and believe the other lock is unlocked.
The easiest fix for this is to add a full memory barrier to the start of
spin_is_locked(), so adding to our previous definition would give us:
bool spin_is_locked(*LOCK) {
smp_mb()
LOAD l = *LOCK
return l.locked
}
The new barrier orders the store to the lock we are locking vs the load
of the other lock:
CPU 0 CPU 1
==================================================
LOAD a = *A LOAD b = *B
a.locked = true b.locked = true
STORE *A = a STORE *B = b
smp_mb() smp_mb()
LOAD b = *B LOAD a = *A
if b.locked # true if a.locked # true
# nothing # nothing
spin_unlock(*A) spin_unlock(*B)
Although the above example is theoretical, there is code similar to this
example in sem_lock() in ipc/sem.c. This commit in addition to the next
commit appears to be a fix for crashes we are seeing in that code where
we believe this race happens in practice.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Once again, we see
arch/powerpc/kernel/exceptions-64s.S: Assembler messages:
arch/powerpc/kernel/exceptions-64s.S:865: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:866: Error: attempt to move .org backwards
arch/powerpc/kernel/exceptions-64s.S:890: Error: attempt to move .org backwards
when compiling ppc:allmodconfig.
This time the problem has been caused by to commit 0869b6fd20
("powerpc/book3s: Add basic infrastructure to handle HMI in Linux"),
which adds functions hmi_exception_early and hmi_exception_after_realmode
into a critical (size-limited) code area, even though that does not appear
to be necessary.
Move those functions to a non-critical area of the file.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
__early_init_mmu() does some things that are really only needed by the
boot cpu. On FSL booke, This includes calling
memblock_enforce_memory_limit(), which is labelled __init. Secondary
cpu init code can't be __init as that would break CPU hotplug.
While it's probably a bug that memblock_enforce_memory_limit() isn't
__init_memblock instead, there's no reason why we should be doing this
stuff for secondary cpus in the first place.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
We should prefer `struct pci_device_id` over `DEFINE_PCI_DEVICE_TABLE` to
meet kernel coding style guidelines. This issue was reported by checkpatch.
A simplified version of the semantic patch that makes this change is as
follows (http://coccinelle.lip6.fr/):
// <smpl>
@@
identifier i;
declarer name DEFINE_PCI_DEVICE_TABLE;
initializer z;
@@
- DEFINE_PCI_DEVICE_TABLE(i)
+ const struct pci_device_id i[]
= z;
// </smpl>
[bhelgaas: add semantic patch]
Signed-off-by: Benoit Taine <benoit.taine@lip6.fr>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
The virtual-machine cpu information data block and the cpu-id of
the boot cpu can be used as source of device randomness.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
For CCW and SCSI IPL the hardware sets the subchannel ID and number
correctly at 0xb8. For kdump at 0xb8 normally there is the data of
the previously IPLed system.
In order to be clean now for kdump and kexec always set the subchannel
ID and number to zero. This tells the next OS that no CCW/SCSI IPL
has been done.
Reviewed-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Michael Holzheu <holzheu@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Christopher reports that perf_event_print_debug() can crash in uniprocessor
builds. The crash is due to pcr_ops being NULL.
This happens because pcr_arch_init() is only invoked by smp_cpus_done() which
only executes in SMP builds.
init_hw_perf_events() is closely intertwined with pcr_ops being setup properly,
therefore:
1) Call pcr_arch_init() early on from init_hw_perf_events(), instead of
from smp_cpus_done().
2) Do not hook up a PMU type if pcr_ops is NULL after pcr_arch_init().
3) Move init_hw_perf_events to a later initcall so that it we will be
sure to invoke pcr_arch_init() after all cpus are brought up.
Finally, guard the one naked sequence of pcr_ops dereferences in
__global_pmu_self() with an appropriate NULL check.
Reported-by: Christopher Alexander Tobias Schulze <cat.schulze@alice-dsl.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
nmi_cpu_busy() is a SMP function call that just makes sure that all of the
cpus are spinning using cpu cycles while the NMI test runs.
It does not need to disable IRQs because we just care about NMIs executing
which will even with 'normal' IRQs disabled.
It is not legal to enable hard IRQs in a SMP cross call, in fact this bug
triggers the BUG check in irq_work_run_list():
BUG_ON(!irqs_disabled());
Because now irq_work_run() is invoked from the tail of
generic_smp_call_function_single_interrupt().
Signed-off-by: David S. Miller <davem@davemloft.net>
it's possible to overwrite random pieces of unallocated memory during
kernel decompression, leading to machine resets.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=4YFS
-----END PGP SIGNATURE-----
Merge tag 'efi-urgent' into x86/efi
* Enforce CONFIG_RELOCATABLE for the x86 EFI boot stub, otherwise
it's possible to overwrite random pieces of unallocated memory during
kernel decompression, leading to machine resets.
Resolved Conflicts:
arch/x86/Kconfig
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
This patch adds bindings for APM X-Gene SoC ethernet driver.
Signed-off-by: Iyappan Subramanian <isubramanian@apm.com>
Signed-off-by: Ravi Patel <rapatel@apm.com>
Signed-off-by: Keyur Chudgar <kchudgar@apm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Pull slave-dma updates from Vinod Koul:
"Some notable changes are:
- new driver for AMBA AXI NBPF by Guennadi
- new driver for sun6i controller by Maxime
- pl330 drivers fixes from Lar's
- sh-dma updates and fixes from Laurent, Geert and Kuninori
- Documentation updates from Geert
- drivers fixes and updates spread over dw, edma, freescale, mpc512x
etc.."
* 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma: (72 commits)
dmaengine: sun6i: depends on RESET_CONTROLLER
dma: at_hdmac: fix invalid remaining bytes detection
dmaengine: nbpfaxi: don't build this driver where it cannot be used
dmaengine: nbpf_error_get_channel() can be static
dma: pl08x: Use correct specifier for size_t values
dmaengine: Remove the context argument to the prep_dma_cyclic operation
dmaengine: nbpfaxi: convert to tasklet
dmaengine: nbpfaxi: fix a theoretical race
dmaengine: add a driver for AMBA AXI NBPF DMAC IP cores
dmaengine: add device tree binding documentation for the nbpfaxi driver
dmaengine: edma: Do not register second device when booted with DT
dmaengine: edma: Do not change the error code returned from edma_alloc_slot
dmaengine: rcar-dmac: Add device tree bindings documentation
dmaengine: shdma: Allocate cyclic sg list dynamically
dmaengine: shdma: Make channel filter ignore unrelated devices
dmaengine: sh: Rework Kconfig and Makefile
dmaengine: sun6i: Fix memory leaks
dmaengine: sun6i: Free the interrupt before killing the tasklet
dmaengine: sun6i: Remove switch statement from buswidth convertion routine
dmaengine: of: kconfig: select DMA_ENGINE when DMA_OF is selected
...
Commit b7dd0e350e (x86/xen: safely map and unmap grant frames when
in atomic context) causes PVH guests to crash in
arch_gnttab_map_shared() when they attempted to map the pages for the
grant table.
This use of a PV-specific function during the PVH grant table setup is
non-obvious and not needed. The standard vmap() function does the
right thing.
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reported-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Tested-by: Mukesh Rathor <mukesh.rathor@oracle.com>
Cc: stable@vger.kernel.org
If the timer irqs are resumed during device resume it is possible in
certain circumstances for the resume to hang early on, before device
interrupts are resumed. For an Ubuntu 14.04 PVHVM guest this would
occur in ~0.5% of resume attempts.
It is not entirely clear what is occuring the point of the hang but I
think a task necessary for the resume calls schedule_timeout(),
waiting for a timer interrupt (which never arrives). This failure may
require specific tasks to be running on the other VCPUs to trigger
(processes are not frozen during a suspend/resume if PREEMPT is
disabled).
Add IRQF_EARLY_RESUME to the timer interrupts so they are resumed in
syscore_resume().
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Reviewed-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
Cc: stable@vger.kernel.org
This was introduced in commit e306e3be1c (Merge tag
'stable/for-linus-3.17-rc0-tag').
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
- A short branch of OMAP fixes that we didn't merge before the window opened.
- A small cleanup that sorts the rk3288 dts entries properly
- A build fix due to a reference to a removed DT node on exynos
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=x9hc
-----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:
- a short branch of OMAP fixes that we didn't merge before the window
opened.
- a small cleanup that sorts the rk3288 dts entries properly
- a build fix due to a reference to a removed DT node on exynos
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: dts: exynos5420: remove disp_pd
ARM: EXYNOS: Fix suspend/resume sequences
ARM: dts: Fix the sort ordering of EHCI and HSIC in rk3288.dtsi
ARM: OMAP3: Fix coding style problems in arch/arm/mach-omap2/control.c
ARM: OMAP3: Fix choice of omap3_restore_es function in OMAP34XX rev3.1.2 case.
ARM: OMAP2+: clock: allow omap2_dpll_round_rate() to round to next-lowest rate
A sparse warning is generated about
'tlb_single_page_flush_ceiling' not being declared.
arch/x86/mm/tlb.c:177:15: warning: symbol
'tlb_single_page_flush_ceiling' was not declared. Should it be static?
Since it isn't used anywhere outside this file, fix the warning
by making it static.
Also, optimize the use of this variable by adding the
__read_mostly directive, as suggested by David Rientjes.
Suggested-by: David Rientjes <rientjes@google.com>
Signed-off-by: Jeremiah Mahler <jmmahler@gmail.com>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Link: http://lkml.kernel.org/r/1407569913-4035-1-git-send-email-jmmahler@gmail.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
arm and arm64 architectures. It required some minor updates to the generic
tracepoint system, so it had to wait for me to implement them.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJT5N6DAAoJEKQekfcNnQGuv60H/2NXDO/kUtvdF0L7ewaGbDaO
sjGOXMHDDgF4fQixPsIYNHdra0iGSPL59NBjIaLsESFsB8SUOVqXSclV0MSiZJQc
1PgTduE19p2kEMsqw6F4l8Ir8hPrUT8V8pQScR9lUkww3ANpyTB6Bbg1rZHcmTYA
yAq20q85rfQrAGwbvvhg40UYF8/su0FMUAbt/a180kVL8yeQI2liAkNOJTMCVq35
PpL7if4dlqAhKMqne71ae080PIPOH34q2lmZX3/SbpRvT2tSkS4dkoSFtCAD4pvx
c2TKNOxEDDWlinN/305PXH2yQ87MTIm44SBaTu/WPllUSQoO//EKI7+13tNS8Qc=
=/VeP
-----END PGP SIGNATURE-----
Merge tag 'trace-ipi-tracepoints' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull IPI tracepoints for ARM from Steven Rostedt:
"Nicolas Pitre added generic tracepoints for tracing IPIs and updated
the arm and arm64 architectures. It required some minor updates to
the generic tracepoint system, so it had to wait for me to implement
them"
* tag 'trace-ipi-tracepoints' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
ARM64: add IPI tracepoints
ARM: add IPI tracepoints
tracepoint: add generic tracepoint definitions for IPI tracing
tracing: Do not do anything special with tracepoint_string when tracing is disabled
Pull arch signal handling cleanup from Richard Weinberger:
"This patch series moves all remaining archs to the get_signal(),
signal_setup_done() and sigsp() functions.
Currently these archs use open coded variants of the said functions.
Further, unused parameters get removed from get_signal_to_deliver(),
tracehook_signal_handler() and signal_delivered().
At the end of the day we save around 500 lines of code."
* 'signal-cleanup' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/misc: (43 commits)
powerpc: Use sigsp()
openrisc: Use sigsp()
mn10300: Use sigsp()
mips: Use sigsp()
microblaze: Use sigsp()
metag: Use sigsp()
m68k: Use sigsp()
m32r: Use sigsp()
hexagon: Use sigsp()
frv: Use sigsp()
cris: Use sigsp()
c6x: Use sigsp()
blackfin: Use sigsp()
avr32: Use sigsp()
arm64: Use sigsp()
arc: Use sigsp()
sas_ss_flags: Remove nested ternary if
Rip out get_signal_to_deliver()
Clean up signal_delivered()
tracehook_signal_handler: Remove sig, info, ka and regs
...
Pull ARM fixes from Russell King:
"A number of small fixes:
- fix loading of the translation table base registers for LPAE
- add two new syscalls to the ARM syscall tables"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: wire up memfd_create syscall
ARM: wire up getrandom syscall
ARM: 8114/1: LPAE: load upper bits of early TTBR0/TTBR1
Mostly cleanup/refactoring in core intc, cache flush, IPI send...
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=Mx5r
-----END PGP SIGNATURE-----
Merge tag 'arc-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC changes from Vineet Gupta:
"Mostly cleanup/refactoring in core intc, cache flush, IPI send..."
* tag 'arc-v3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
mm, arc: remove obsolete pagefault oom killer comment
ARC: help gcc elide icache helper for !SMP
ARC: move common ops for line/full cache into helpers
ARC: cache boot reporting updates
ARC: [intc] mask/unmask can be hidden again
ARC: [plat-arcfpga] No need for init_irq hack
ARC: [intc] don't mask all IRQ by default
ARC: prune extra header includes from smp.c
ARC: update some comments
ARC: [SMP] unify cpu private IRQ requests (TIMER/IPI)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=zjzv
-----END PGP SIGNATURE-----
Merge tag 'please-pull-getrandom' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux
Pull ia64 system call update from Tony Luck:
"Wire up getrandom system call for ia64"
* tag 'please-pull-getrandom' of git://git.kernel.org/pub/scm/linux/kernel/git/aegl/linux:
[IA64] Wire up getrandom() system call
This was caused by commit 5a8da52404 ("ARM: dts: exynos5420: add dsi
node"), which conflicted with d51cad7df8 ("ARM: dts: remove display
power domain for exynos5420").
The DTS addition should never have been merged through the DRM tree in
the first place, and it lacked an ack from the platform maintainer
(who would have known that the disp_pd reference got removed).
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Olof Johansson <olof@lixom.net>
Due to recent consolidation of Exynos suspend and cpuidle code, some
parts of suspend and resume sequences are executed two times, once from
exynos_pm_syscore_ops and then from exynos_cpu_pm_notifier() and thus it
breaks suspend, at least on Exynos4-based boards. In addition, simple
core power down from a cpuidle driver could, in case of CPU 0 could
result in calling functions that are specific to suspend and deeper idle
states.
This patch fixes the issue by moving those operations outside the CPU PM
notifier into suspend and AFTR code paths. This leads to a bit of code
duplication, but allows additional code simplification, so in the end
more code is removed than added.
Fixes: 85f9f90808 ("ARM: EXYNOS: Use the cpu_pm notifier for pm")
Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Olof Johansson <olof@lixom.net>
Cc: arm@kernel.org
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
[b.zolnierkie: ported patch over current changes]
[b.zolnierkie: fixed exynos_aftr_finisher() return value]
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Signed-off-by: Olof Johansson <olof@lixom.net>
- Fix for DPLL rate rounding
- Fix for omap3 ES3.1.2 suspend
- Few coding style fixes
Note that these are based on earlier omap-for-v3.17/soc.
No strict dependency to it though, but I already merged in
the pull request from Paul for the first fix into it and
these are all SoC related.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJT21LQAAoJEBvUPslcq6VzMVMP/jgMYuWubEC+fBxiS4rVhi70
UtSXZC5BbUejf3EudJvIusS0SDoWApMLsOyanNTb5zyHMdSbYgkwJx1xfw9TYLZJ
j9WnOUB3a3XA6Forz9GD1m5Z+Ii/iPhovJSWwHXllF+JW6IlkgIkCshiPohBwf4P
AZiDtz76sYiCql7S25rZAchE/6kZNrsgOauWmNyINi1IKtVL/U0LhECV1VPbKly8
LbfHhHL7/RrEtmda7KG0/7FydkqKB6a6MpDGmB8UyaiMrUlu8MmUFxWHq8mbRdyk
WNX/eJw5//ee5WlCx9peHMTq5swnCnyGkd5Ov2x8Fr5SnZp6mLlG6DNxhuBWoiVT
UgLvhAOOE66WQJ8DrkNNJD4L9u1hpulm1bRJXfBMz+Dsu72ax0w+tRYpWzv1P+/b
dtQBrZcH8D7Wz85y3hrF+ck+yxvGduEZT/+qax9GvqaYJHiuiYIDzPLlYX/61JxZ
H5tES+TY9Fe6fxJAc4xWdpfLkr0Qk7K6pTLph1F2mgT3qqBd/lBtCtbJP6aiaZmo
tjEyeOr5Cgxo+aEg5NTIzgOnuMO+lcU5CZ80wlJPv14szQ1DHj+4DXDE8/vgTjwT
qBRxwZkultjNb6ZqgIfT3+2SyeP9ZduBmh66NLVxHHAxXa8TVrBpBHlrrhLxD2zW
00GT2lygadrg7eKgseFY
=jsEw
-----END PGP SIGNATURE-----
Merge tag 'omap-for-v3.17/soc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
Merge "few omap fixes for v3.17 merge window" from Tony Lindgren:
Few fixes for the v3.17 merge window:
- Fix for DPLL rate rounding
- Fix for omap3 ES3.1.2 suspend
- Few coding style fixes
* tag 'omap-for-v3.17/soc-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP3: Fix coding style problems in arch/arm/mach-omap2/control.c
ARM: OMAP3: Fix choice of omap3_restore_es function in OMAP34XX rev3.1.2 case.
ARM: OMAP2+: clock: allow omap2_dpll_round_rate() to round to next-lowest rate
Signed-off-by: Olof Johansson <olof@lixom.net>
The EHCI and HSIC device tree nodes were added in the wrong place.
Fix them.
Signed-off-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kever Yang <kever.yang@rock-chips.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Olof Johansson <olof@lixom.net>
This patch fixes booting when idmap pgd lays above 4gb. Commit
4756dcbfd3 mostly had fixed this, but it'd failed to load upper bits.
Also this fixes adding TTBR1_OFFSET to TTRR1: if lower part overflows
carry flag must be added to the upper part.
Signed-off-by: Konstantin Khlebnikov <k.khlebnikov@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
cycle, and this time we got a lot of action going on and
it will continue:
- The core GPIO library implementation has been split up in
three different files:
- gpiolib.c for the latest and greatest and shiny GPIO
library code using GPIO descriptors only
- gpiolib-legacy.c for the old integer number space API
that we are phasing out gradually
- gpiolib-sysfs.c for the sysfs interface that we are
not entirely happy with, but has to live on for
ABI compatibility
- Add a flags argument to *gpiod_get* functions, with some
backward-compatibility macros to ease transitions. We
should have had the flags there from the beginning it
seems, now we need to clean up the mess. There is a plan
on how to move forward here devised by Alexandre Courbot
and Mark Brown.
- Split off a special <linux/gpio/machine.h> header for the
board gpio table registration, as per example from the
regulator subsystem.
- Start to kill off the return value from gpiochip_remove()
by removing the __must_check attribute and removing all
checks inside the drivers/gpio directory. The rationale
is: well what were we supposed to do if there is an error
code? Not much: print an error message. And gpiolib already
does that. So make this function return void eventually.
- Some cleanups of hairy gpiolib code, make some functions
not to be used outside the library private and make sure
they are not exported, remove gpiod_lock/unlock_as_irq()
as the existing function is for driver-internal use and
fine as it is, delete gpio_ensure_requested() as it is
not meaningful anymore.
- Support the GPIOF_ACTIVE_LOW flag from gpio_request_one()
function calls, which is logical since this is already
supported when referencing GPIOs from e.g. device trees.
- Switch STMPE, intel-mid, lynxpoint and ACPI (!) to use
the gpiolib irqchip helpers cutting down on GPIO irqchip
boilerplate a bit more.
- New driver for the Zynq GPIO block.
- The usual incremental improvements around a bunch of
drivers.
- Janitorial syntactic and semantic cleanups by Jingoo Han,
and Rickard Strandqvist especially.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=e+d6
-----END PGP SIGNATURE-----
Merge tag 'gpio-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio
Pull GPIO update from Linus Walleij:
"This is the bulk of GPIO changes for the v3.17 development cycle, and
this time we got a lot of action going on and it will continue:
- The core GPIO library implementation has been split up in three
different files:
- gpiolib.c for the latest and greatest and shiny GPIO library code
using GPIO descriptors only
- gpiolib-legacy.c for the old integer number space API that we are
phasing out gradually
- gpiolib-sysfs.c for the sysfs interface that we are not entirely
happy with, but has to live on for ABI compatibility
- Add a flags argument to *gpiod_get* functions, with some
backward-compatibility macros to ease transitions. We should have
had the flags there from the beginning it seems, now we need to
clean up the mess. There is a plan on how to move forward here
devised by Alexandre Courbot and Mark Brown
- Split off a special <linux/gpio/machine.h> header for the board
gpio table registration, as per example from the regulator
subsystem
- Start to kill off the return value from gpiochip_remove() by
removing the __must_check attribute and removing all checks inside
the drivers/gpio directory. The rationale is: well what were we
supposed to do if there is an error code? Not much: print an error
message. And gpiolib already does that. So make this function
return void eventually
- Some cleanups of hairy gpiolib code, make some functions not to be
used outside the library private and make sure they are not
exported, remove gpiod_lock/unlock_as_irq() as the existing
function is for driver-internal use and fine as it is, delete
gpio_ensure_requested() as it is not meaningful anymore
- Support the GPIOF_ACTIVE_LOW flag from gpio_request_one() function
calls, which is logical since this is already supported when
referencing GPIOs from e.g. device trees
- Switch STMPE, intel-mid, lynxpoint and ACPI (!) to use the gpiolib
irqchip helpers cutting down on GPIO irqchip boilerplate a bit more
- New driver for the Zynq GPIO block
- The usual incremental improvements around a bunch of drivers
- Janitorial syntactic and semantic cleanups by Jingoo Han, and
Rickard Strandqvist especially"
* tag 'gpio-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio: (37 commits)
MAINTAINERS: update GPIO include files
gpio: add missing includes in machine.h
gpio: add flags argument to gpiod_get*() functions
MAINTAINERS: Update Samsung pin control entry
gpio / ACPI: Move event handling registration to gpiolib irqchip helpers
gpio: lynxpoint: Convert to use gpiolib irqchip
gpio: split gpiod board registration into machine header
gpio: remove gpio_ensure_requested()
gpio: remove useless check in gpiolib_sysfs_init()
gpiolib: Export gpiochip_request_own_desc and gpiochip_free_own_desc
gpio: move gpio_ensure_requested() into legacy C file
gpio: remove gpiod_lock/unlock_as_irq()
gpio: make gpiochip_get_desc() gpiolib-private
gpio: simplify gpiochip_export()
gpio: remove export of private of_get_named_gpio_flags()
gpio: Add support for GPIOF_ACTIVE_LOW to gpio_request_one functions
gpio: zynq: Clear pending interrupt when enabling a IRQ
gpio: drop retval check enforcing from gpiochip_remove()
gpio: remove all usage of gpio_remove retval in driver/gpio
devicetree: Add Zynq GPIO devicetree bindings documentation
...
Pull input updates from Dmitry Torokhov:
- big update to Wacom driver by Benjamin Tissoires, converting it to
HID infrastructure and unifying USB and Bluetooth models
- large update to ALPS driver by Hans de Goede, which adds support for
newer touchpad models as well as cleans up and restructures the code
- more changes to Atmel MXT driver, including device tree support
- new driver for iPaq x3xxx touchscreen
- driver for serial Wacom tablets
- driver for Microchip's CAP1106
- assorted cleanups and improvements to existing drover and input core
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (93 commits)
Input: wacom - update the ABI doc according to latest changes
Input: wacom - only register once the MODULE_* macros
Input: HID - remove hid-wacom Bluetooth driver
Input: wacom - add copyright note and bump version to 2.0
Input: wacom - remove passing id for wacom_set_report
Input: wacom - check for bluetooth protocol while setting OLEDs
Input: wacom - handle Intuos 4 BT in wacom.ko
Input: wacom - handle Graphire BT tablets in wacom.ko
Input: wacom - prepare the driver to include BT devices
Input: hyperv-keyboard - register as a wakeup source
Input: imx_keypad - remove ifdef round PM methods
Input: jornada720_ts - get rid of space indentation and use tab
Input: jornada720_ts - switch to using managed resources
Input: alps - Rushmore and v7 resolution support
Input: mcs5000_ts - remove ifdef around power management methods
Input: mcs5000_ts - protect PM functions with CONFIG_PM_SLEEP
Input: ads7846 - release resources on failure for clean exit
Input: wacom - add support for 0x12C ISDv4 sensor
Input: atmel_mxt_ts - use deep sleep mode when stopped
ARM: dts: am437x-gp-evm: Update binding for touchscreen size
...
Merge more incoming from Andrew Morton:
"Two new syscalls:
memfd_create in "shm: add memfd_create() syscall"
kexec_file_load in "kexec: implementation of new syscall kexec_file_load"
And:
- Most (all?) of the rest of MM
- Lots of the usual misc bits
- fs/autofs4
- drivers/rtc
- fs/nilfs
- procfs
- fork.c, exec.c
- more in lib/
- rapidio
- Janitorial work in filesystems: fs/ufs, fs/reiserfs, fs/adfs,
fs/cramfs, fs/romfs, fs/qnx6.
- initrd/initramfs work
- "file sealing" and the memfd_create() syscall, in tmpfs
- add pci_zalloc_consistent, use it in lots of places
- MAINTAINERS maintenance
- kexec feature work"
* emailed patches from Andrew Morton <akpm@linux-foundation.org: (193 commits)
MAINTAINERS: update nomadik patterns
MAINTAINERS: update usb/gadget patterns
MAINTAINERS: update DMA BUFFER SHARING patterns
kexec: verify the signature of signed PE bzImage
kexec: support kexec/kdump on EFI systems
kexec: support for kexec on panic using new system call
kexec-bzImage64: support for loading bzImage using 64bit entry
kexec: load and relocate purgatory at kernel load time
purgatory: core purgatory functionality
purgatory/sha256: provide implementation of sha256 in purgaotory context
kexec: implementation of new syscall kexec_file_load
kexec: new syscall kexec_file_load() declaration
kexec: make kexec_segment user buffer pointer a union
resource: provide new functions to walk through resources
kexec: use common function for kimage_normal_alloc() and kimage_crash_alloc()
kexec: move segment verification code in a separate function
kexec: rename unusebale_pages to unusable_pages
kernel: build bin2c based on config option CONFIG_BUILD_BIN2C
bin2c: move bin2c in scripts/basic
shm: wait for pins to be released when sealing
...
This is the final piece of the puzzle of verifying kernel image signature
during kexec_file_load() syscall.
This patch calls into PE file routines to verify signature of bzImage. If
signature are valid, kexec_file_load() succeeds otherwise it fails.
Two new config options have been introduced. First one is
CONFIG_KEXEC_VERIFY_SIG. This option enforces that kernel has to be
validly signed otherwise kernel load will fail. If this option is not
set, no signature verification will be done. Only exception will be when
secureboot is enabled. In that case signature verification should be
automatically enforced when secureboot is enabled. But that will happen
when secureboot patches are merged.
Second config option is CONFIG_KEXEC_BZIMAGE_VERIFY_SIG. This option
enables signature verification support on bzImage. If this option is not
set and previous one is set, kernel image loading will fail because kernel
does not have support to verify signature of bzImage.
I tested these patches with both "pesign" and "sbsign" signed bzImages.
I used signing_key.priv key and signing_key.x509 cert for signing as
generated during kernel build process (if module signing is enabled).
Used following method to sign bzImage.
pesign
======
- Convert DER format cert to PEM format cert
openssl x509 -in signing_key.x509 -inform DER -out signing_key.x509.PEM -outform
PEM
- Generate a .p12 file from existing cert and private key file
openssl pkcs12 -export -out kernel-key.p12 -inkey signing_key.priv -in
signing_key.x509.PEM
- Import .p12 file into pesign db
pk12util -i /tmp/kernel-key.p12 -d /etc/pki/pesign
- Sign bzImage
pesign -i /boot/vmlinuz-3.16.0-rc3+ -o /boot/vmlinuz-3.16.0-rc3+.signed.pesign
-c "Glacier signing key - Magrathea" -s
sbsign
======
sbsign --key signing_key.priv --cert signing_key.x509.PEM --output
/boot/vmlinuz-3.16.0-rc3+.signed.sbsign /boot/vmlinuz-3.16.0-rc3+
Patch details:
Well all the hard work is done in previous patches. Now bzImage loader
has just call into that code and verify whether bzImage signature are
valid or not.
Also create two config options. First one is CONFIG_KEXEC_VERIFY_SIG.
This option enforces that kernel has to be validly signed otherwise kernel
load will fail. If this option is not set, no signature verification will
be done. Only exception will be when secureboot is enabled. In that case
signature verification should be automatically enforced when secureboot is
enabled. But that will happen when secureboot patches are merged.
Second config option is CONFIG_KEXEC_BZIMAGE_VERIFY_SIG. This option
enables signature verification support on bzImage. If this option is not
set and previous one is set, kernel image loading will fail because kernel
does not have support to verify signature of bzImage.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Matt Fleming <matt@console-pimps.org>
Cc: David Howells <dhowells@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch does two things. It passes EFI run time mappings to second
kernel in bootparams efi_info. Second kernel parse this info and create
new mappings in second kernel. That means mappings in first and second
kernel will be same. This paves the way to enable EFI in kexec kernel.
This patch also prepares and passes EFI setup data through bootparams.
This contains bunch of information about various tables and their
addresses.
These information gathering and passing has been written along the lines
of what current kexec-tools is doing to make kexec work with UEFI.
[akpm@linux-foundation.org: s/get_efi/efi_get/g, per Matt]
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch adds support for loading a kexec on panic (kdump) kernel usning
new system call.
It prepares ELF headers for memory areas to be dumped and for saved cpu
registers. Also prepares the memory map for second kernel and limits its
boot to reserved areas only.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is loader specific code which can load bzImage and set it up for
64bit entry. This does not take care of 32bit entry or real mode entry.
32bit mode entry can be implemented if somebody needs it.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Load purgatory code in RAM and relocate it based on the location.
Relocation code has been inspired by module relocation code and purgatory
relocation code in kexec-tools.
Also compute the checksums of loaded kexec segments and store them in
purgatory.
Arch independent code provides this functionality so that arch dependent
bootloaders can make use of it.
Helper functions are provided to get/set symbol values in purgatory which
are used by bootloaders later to set things like stack and entry point of
second kernel etc.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Create a stand alone relocatable object purgatory which runs between two
kernels. This name, concept and some code has been taken from
kexec-tools. Idea is that this code runs after a crash and it runs in
minimal environment. So keep it separate from rest of the kernel and in
long term we will have to practically do no maintenance of this code.
This code also has the logic to do verify sha256 hashes of various
segments which have been loaded into memory. So first we verify that the
kernel we are jumping to is fine and has not been corrupted and make
progress only if checsums are verified.
This code also takes care of copying some memory contents to backup region.
[sfr@canb.auug.org.au: run host built programs from objtree]
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Next two patches provide code for purgatory. This is a code which does
not link against the kernel and runs stand alone. This code runs between
two kernels. One of the primary purpose of this code is to verify the
digest of newly loaded kernel and making sure it matches the digest
computed at kernel load time.
We use sha256 for calculating digest of kexec segmetns. Purgatory can't
use stanard crypto API as that API is not available in purgatory context.
Hence, I have copied code from crypto/sha256_generic.c and compiled it
with purgaotry code so that it could be used. I could not #include
sha256_generic.c file here as some of the function signature requiered
little tweaking. Original functions work with crypto API but these ones
don't
So instead of doing #include on sha256_generic.c I just copied relevant
portions of code into arch/x86/purgatory/sha256.c. Now we shouldn't have
to touch this code at all. Do let me know if there are better ways to
handle it.
This patch does not enable compiling of this code. That happens in next
patch. I wanted to highlight this change in a separate patch for easy
review.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Previous patch provided the interface definition and this patch prvides
implementation of new syscall.
Previously segment list was prepared in user space. Now user space just
passes kernel fd, initrd fd and command line and kernel will create a
segment list internally.
This patch contains generic part of the code. Actual segment preparation
and loading is done by arch and image specific loader. Which comes in
next patch.
[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is the new syscall kexec_file_load() declaration/interface. I have
reserved the syscall number only for x86_64 so far. Other architectures
(including i386) can reserve syscall number when they enable the support
for this new syscall.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
currently bin2c builds only if CONFIG_IKCONFIG=y. But bin2c will now be
used by kexec too. So make it compilation dependent on CONFIG_BUILD_BIN2C
and this config option can be selected by CONFIG_KEXEC and CONFIG_IKCONFIG.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Cc: Borislav Petkov <bp@suse.de>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Eric Biederman <ebiederm@xmission.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: Greg Kroah-Hartman <greg@kroah.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: WANG Chao <chaowang@redhat.com>
Cc: Baoquan He <bhe@redhat.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
memfd_create() is similar to mmap(MAP_ANON), but returns a file-descriptor
that you can pass to mmap(). It can support sealing and avoids any
connection to user-visible mount-points. Thus, it's not subject to quotas
on mounted file-systems, but can be used like malloc()'ed memory, but with
a file-descriptor to it.
memfd_create() returns the raw shmem file, so calls like ftruncate() can
be used to modify the underlying inode. Also calls like fstat() will
return proper information and mark the file as regular file. If you want
sealing, you can specify MFD_ALLOW_SEALING. Otherwise, sealing is not
supported (like on all other regular files).
Compared to O_TMPFILE, it does not require a tmpfs mount-point and is not
subject to a filesystem size limit. It is still properly accounted to
memcg limits, though, and to the same overcommit or no-overcommit
accounting as all user memory.
Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Michael Kerrisk <mtk.manpages@gmail.com>
Cc: Ryan Lortie <desrt@desrt.ca>
Cc: Lennart Poettering <lennart@poettering.net>
Cc: Daniel Mack <zonque@gmail.com>
Cc: Andy Lutomirski <luto@amacapital.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Replace strict_strto calls with more appropriate kstrto calls
Signed-off-by: Daniel Walter <dwalter@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Replace obsolete strict_strto with kstrto calls
Signed-off-by: Daniel Walter <dwalter@google.com>
Cc: Wan ZongShun <mcuos.com@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Replace obsolete strict_strto call with kstrto
Signed-off-by: Daniel Walter <dwalter@google.com>
Cc: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Replace obsolete call to strict_strto with kstrto
Signed-off-by: Daniel Walter <dwalter@google.com>
Cc: Eric Miao <eric.y.miao@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Replace obsolete strict_strto call with kstrto calls.
Simplify copy_from_user/strict_strto by using kstrto_from_user
Signed-off-by: Daniel Walter <dwalter@google.com>
Cc: Tony Lindgren <tony@atomide.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The core mm code will provide a default gate area based on
FIXADDR_USER_START and FIXADDR_USER_END if
!defined(__HAVE_ARCH_GATE_AREA) && defined(AT_SYSINFO_EHDR).
This default is only useful for ia64. arm64, ppc, s390, sh, tile, 64-bit
UML, and x86_32 have their own code just to disable it. arm, 32-bit UML,
and x86_64 have gate areas, but they have their own implementations.
This gets rid of the default and moves the code into ia64.
This should save some code on architectures without a gate area: it's now
possible to inline the gate_area functions in the default case.
Signed-off-by: Andy Lutomirski <luto@amacapital.net>
Acked-by: Nathan Lynch <nathan_lynch@mentor.com>
Acked-by: H. Peter Anvin <hpa@linux.intel.com>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [in principle]
Acked-by: Richard Weinberger <richard@nod.at> [for um]
Acked-by: Will Deacon <will.deacon@arm.com> [for arm64]
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Cc: Jeff Dike <jdike@addtoit.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: Nathan Lynch <Nathan_Lynch@mentor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There's no need to have an architecture version of scatterlist.h if the
only thing the file does is include asm-generic/scatterlist.h. Switch to
the asm-generic versions directly.
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Acked-by: David Howells <dhowells@redhat.com>
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Chen Liqin <liqin.linux@gmail.com>,
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Michal Simek <monstr@monstr.eu>
Cc: Hirokazu Takata <takata@linux-m32r.org>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Rather than have architectures #define ARCH_HAS_SG_CHAIN in an
architecture specific scatterlist.h, make it a proper Kconfig option and
use that instead. At same time, remove the header files are are now
mostly useless and just include asm-generic/scatterlist.h.
[sfr@canb.auug.org.au: powerpc files now need asm/dma.h]
Signed-off-by: Laura Abbott <lauraa@codeaurora.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de> [x86]
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> [powerpc]
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "James E.J. Bottomley" <JBottomley@parallels.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently, the rtc-efi driver is restricted to ia64 only. Newer
architectures with EFI support may want to also use that driver. This
patch moves the platform device setup from ia64 into drivers/rtc and
allow any architecture with CONFIG_EFI=y to use the rtc-efi driver.
Signed-off-by: Mark Salter <msalter@redhat.com>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We broke this out in a separate branch since some defconfigs now are
shared between maintainers, and having them merged in through separate
topics (drivers/soc/etc) is a recipe for conflicts.
Most of this is removal of two defconfigs:
* Kirkwood, now folded into mvebu/multi_v5
* Renesas genmai, removed platform
* Major defconfig refresh for exynos
* Various updates on the other multi-defconfigs and others (tegra,
socfpga, shmobile).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=t74M
-----END PGP SIGNATURE-----
Merge tag 'defconfig-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC defconfig updates from Olof Johansson:
"We broke this out in a separate branch since some defconfigs now are
shared between maintainers, and having them merged in through separate
topics (drivers/soc/etc) is a recipe for conflicts.
Most of this is removal of two defconfigs:
- Kirkwood, now folded into mvebu/multi_v5
- Renesas genmai, removed platform
- major defconfig refresh for exynos
- various updates on the other multi-defconfigs and others (tegra,
socfpga, shmobile):
* tag 'defconfig-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (29 commits)
ARM: multi_v7_defconfig: Enable TI PIPE3 PHY driver
ARM: config: enable ARCH_HIX5HD2
ARM: multi_v7_defconfig: Enable MiPHY365x - ST's Generic (SATA & PCIe) PHY
ARM: multi_v7_defconfig: Enable ST's (S)ATA driver
ARM: multi_v7_defconfig: add ST Keyscan driver
ARM: update multi_v7_defconfig for STI
ARM: multi_v7_defconfig: Configure in ST's Thermal Controller
ARM: exynos_defconfig: Update exynos_defconfig
ARM: shmobile: defconfig: Remove MACH_GENMAI
ARM: mvebu: update mvebu_v7_defconfig with cpufreq support
ARM: mvebu: defconfig: enable cpuidle support in mvebu_v7_defconfig
ARM: shmobile: genmai: remove defconfig
ARM: socfpga: Update socfpga_defconfig
ARM: Kirkwood: Remove kirkwood_defconfig
ARM: mvebu: enable Armada 375 network driver in mvebu_v7_defconfig
ARM: shmobile: Enable R-Car Gen 2 PCIe in shmobile_defconfig
ARM: mvebu: add devtmpfs to mvebu_v5_defconfig
ARM: mvebu: add appended DTB support in mvebu_v5_defconfig
ARM: multi_v7: enable igb, stmpe, lm95245, pwm leds
ARM: multi_v7_defconfig: Enable ST's I2C driver
...
A handful of driver-related changes. We've had a bunch of them going in through
other branches as well, so it's only a part of what we really have this release.
Larger pieces are:
* Removal of a now unused PWM driver for atmel
- This includes AVR32 changes that have been appropriately acked.
* Performance counter support for the arm CCN interconnect
* OMAP mailbox driver cleanups and consolidation
* PCI and SATA PHY drivers for SPEAr 13xx platforms
* Redefinition (with backwards compatibility!) of PCI DT bindings for Tegra to
better model regulators/power.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=fsP6
-----END PGP SIGNATURE-----
Merge tag 'drivers-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC driver changes from Olof Johansson:
"A handful of driver-related changes. We've had a bunch of them going
in through other branches as well, so it's only a part of what we
really have this release.
Larger pieces are:
- Removal of a now unused PWM driver for atmel
[ This includes AVR32 changes that have been appropriately acked ]
- Performance counter support for the arm CCN interconnect
- OMAP mailbox driver cleanups and consolidation
- PCI and SATA PHY drivers for SPEAr 13xx platforms
- Redefinition (with backwards compatibility!) of PCI DT bindings for
Tegra to better model regulators/power"
Note: this merge also fixes up the semantic conflict with the new
calling convention for devm_phy_create(), see commit f0ed817638 ("phy:
core: Let node ptr of PHY point to PHY and not of PHY provider") that
came in through Greg's USB tree.
Semantic merge patch by Stephen Rothwell <sfr@canb.auug.org.au> through
the next tree.
* tag 'drivers-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (38 commits)
bus: arm-ccn: Fix error handling at event allocation
mailbox/omap: add a parent structure for every IP instance
mailbox/omap: remove the private mailbox structure
mailbox/omap: consolidate OMAP mailbox driver
mailbox/omap: simplify the fifo assignment by using macros
mailbox/omap: remove omap_mbox_type_t from mailbox ops
mailbox/omap: remove OMAP1 mailbox driver
mailbox/omap: use devm_* interfaces
bus: ARM CCN: add PERF_EVENTS dependency
bus: ARM CCN PMU driver
PCI: spear: Remove spear13xx_pcie_remove()
PCI: spear: Fix Section mismatch compilation warning for probe()
ARM: tegra: Remove legacy PCIe power supply properties
PCI: tegra: Remove deprecated power supply properties
PCI: tegra: Implement accurate power supply scheme
ARM: SPEAr13xx: Update defconfigs
ARM: SPEAr13xx: Add pcie and miphy DT nodes
ARM: SPEAr13xx: Add bindings and dt node for misc block
ARM: SPEAr13xx: Fix static mapping table
phy: Add drivers for PCIe and SATA phy on SPEAr13xx
...
Unlike the board branch, this keeps having large sets of changes for
every release, but that's quite expected and is so far working well.
Most of this is plumbing for various device bindings and new platforms,
but there's also a bit of cleanup and code removal for things that
are moved from platform code to DT contents (some OMAP clock code in
particular).
There's also a pinctrl driver for tegra here (appropriately acked),
that's introduced this way to make it more bisectable.
I'm happy to say that there were no conflicts at all with this branch
this release, which means that changes are flowing through our tree as
expected instead of merged through driver maintainers (or at least not
done with conflicts).
There are several new boards added, and a couple of SoCs. In no particular
order:
* Rockchip RK3288 SoC support, including DTS for a dev board that they
have seeded with some community developers.
* Better support for Hardkernel Exynos4-based ODROID boards.
* CCF conversions (and dtsi contents) for several Renesas platforms.
* Gumstix Pepper (TI AM335x) board support
* TI eval board support for AM437x
* Allwinner A23 SoC, very similar to existing ones which mostly has
resulted in DT changes for support. Also includes support for an Ippo
tablet with the chipset.
* Allwinner A31 Hummingbird board support, not to be confused with the
SolidRun i.MX-based Hummingboard.
* Tegra30 Apalis board support
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=xxlY
-----END PGP SIGNATURE-----
Merge tag 'dt-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device-tree changes from Olof Johansson:
"Unlike the board branch, this keeps having large sets of changes for
every release, but that's quite expected and is so far working well.
Most of this is plumbing for various device bindings and new
platforms, but there's also a bit of cleanup and code removal for
things that are moved from platform code to DT contents (some OMAP
clock code in particular).
There's also a pinctrl driver for tegra here (appropriately acked),
that's introduced this way to make it more bisectable.
I'm happy to say that there were no conflicts at all with this branch
this release, which means that changes are flowing through our tree as
expected instead of merged through driver maintainers (or at least not
done with conflicts).
There are several new boards added, and a couple of SoCs. In no
particular order:
- Rockchip RK3288 SoC support, including DTS for a dev board that
they have seeded with some community developers.
- Better support for Hardkernel Exynos4-based ODROID boards.
- CCF conversions (and dtsi contents) for several Renesas platforms.
- Gumstix Pepper (TI AM335x) board support
- TI eval board support for AM437x
- Allwinner A23 SoC, very similar to existing ones which mostly has
resulted in DT changes for support. Also includes support for an
Ippo tablet with the chipset.
- Allwinner A31 Hummingbird board support, not to be confused with
the SolidRun i.MX-based Hummingboard.
- Tegra30 Apalis board support"
* tag 'dt-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (334 commits)
ARM: dts: Enable USB host0 (EHCI) on rk3288-evb
ARM: dts: add rk3288 ehci usb devices
ARM: dts: Turn on USB host vbus on rk3288-evb
ARM: tegra: apalis t30: fix device tree compatible node
ARM: tegra: paz00: Fix some indentation inconsistencies
ARM: zynq: DT: Clarify Xilinx Zynq platform
ARM: dts: rockchip: add watchdog node
ARM: dts: rockchip: remove pinctrl setting from radxarock uart2
ARM: dts: Add missing pinctrl for uart0/1 for exynos3250
ARM: dts: Remove duplicate 'interrput-parent' property for exynos3250
ARM: dts: Add TMU dt node to monitor the temperature for exynos3250
ARM: dts: Specify MAX77686 pmic interrupt for exynos5250-smdk5250
ARM: dts: cypress,cyapa trackpad is exynos5250-Snow only
ARM: dts: max77686 is exynos5250-snow only
ARM: zynq: DT: Remove DMA from board DTs
ARM: zynq: DT: Add CAN node
ARM: EXYNOS: Add exynos5260 PMU compatible string to DT match table
ARM: dts: Add PMU DT node for exynos5260 SoC
ARM: EXYNOS: Add support for Exynos5410 PMU
ARM: dts: Add PMU to exynos5410
...
This is the smallest board branch we have ever had. Most of this is a
few cleanups for board code for Renesas shmobile, with a bit of legacy
driver support added. This is strongly trending in the right direction now.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=m3yA
-----END PGP SIGNATURE-----
Merge tag 'boards-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC board changes from Olof Johansson:
"This is the smallest board branch we have ever had. Most of this is a
few cleanups for board code for Renesas shmobile, with a bit of legacy
driver support added. This is strongly trending in the right
direction now"
* tag 'boards-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: shmobile: Enable R-Car Gen2 CMA code in board files
ARM: shmobile: armadillo800eva reference: Spelling s/ED/LED/
ARM: shmobile: armadillo800eva legacy: Add LED support
ARM: shmobile: lager-reference: Remove workarounds for core clock issues
ARM: shmobile: koelsch-reference: Remove workarounds for core clock issues
This is the bulk of new SoC enablement and other platform changes for 3.17:
* Samsung S5PV210 has been converted to DT and multiplatform
* Clock drivers and bindings for some of the lower-end i.MX 1/2 platforms
* Kirkwood, one of the popular Marvell platforms, is folded into the
mvebu platform code, removing mach-kirkwood.
* Hwmod data for TI AM43xx and DRA7 platforms.
* More additions of Renesas shmobile platform support
* Removal of plat-samsung contents that can be removed with S5PV210 being
multiplatform/DT-enabled and the other two old platforms being removed.
New platforms (most with only basic support right now):
* Hisilicon X5HD2 settop box chipset is introduced
* Mediatek MT6589 (mobile chipset) is introduced
* Broadcom BCM7xxx settop box chipset is introduced
+ as usual a lot other pieces all over the platform code.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=5TJ6
-----END PGP SIGNATURE-----
Merge tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC platform changes from Olof Johansson:
"This is the bulk of new SoC enablement and other platform changes for
3.17:
- Samsung S5PV210 has been converted to DT and multiplatform
- Clock drivers and bindings for some of the lower-end i.MX 1/2
platforms
- Kirkwood, one of the popular Marvell platforms, is folded into the
mvebu platform code, removing mach-kirkwood
- Hwmod data for TI AM43xx and DRA7 platforms
- More additions of Renesas shmobile platform support
- Removal of plat-samsung contents that can be removed with S5PV210
being multiplatform/DT-enabled and the other two old platforms
being removed
New platforms (most with only basic support right now):
- Hisilicon X5HD2 settop box chipset is introduced
- Mediatek MT6589 (mobile chipset) is introduced
- Broadcom BCM7xxx settop box chipset is introduced
+ as usual a lot other pieces all over the platform code"
* tag 'soc-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (240 commits)
ARM: hisi: remove smp from machine descriptor
power: reset: move hisilicon reboot code
ARM: dts: Add hix5hd2-dkb dts file.
ARM: debug: Rename Hi3716 to HIX5HD2
ARM: hisi: enable hix5hd2 SoC
ARM: hisi: add ARCH_HISI
MAINTAINERS: add entry for Broadcom ARM STB architecture
ARM: brcmstb: select GISB arbiter and interrupt drivers
ARM: brcmstb: add infrastructure for ARM-based Broadcom STB SoCs
ARM: configs: enable SMP in bcm_defconfig
ARM: add SMP support for Broadcom mobile SoCs
Documentation: arm: misc updates to Marvell EBU SoC status
Documentation: arm: add URLs to public datasheets for the Marvell Armada XP SoC
ARM: mvebu: fix build without platforms selected
ARM: mvebu: add cpuidle support for Armada 38x
ARM: mvebu: add cpuidle support for Armada 370
cpuidle: mvebu: add Armada 38x support
cpuidle: mvebu: add Armada 370 support
cpuidle: mvebu: rename the driver from armada-370-xp to mvebu-v7
ARM: mvebu: export the SCU address
...
This merge window brings a good size of cleanups on various
platforms. Among the bigger ones:
* Removal of Samsung s5pc100 and s5p64xx platforms. Both of these have
lacked active support for quite a while, and after asking around nobody
showed interest in keeping them around. If needed, they could be
resurrected in the future but it's more likely that we would prefer
reintroduction of them as DT and multiplatform-enabled platforms
instead.
* OMAP4 controller code register define diet. They defined a lot of registers
that were never actually used, etc.
* Move of some of the Tegra platform code (PMC, APBIO, fuse, powergate)
to drivers/soc so it can be shared with 64-bit code. This also converts them
over to traditional driver models where possible.
* Removal of legacy gpio-samsung driver, since the last users have been
removed (moved to pinctrl)
Plus a bunch of smaller changes for various platforms that sort of
dissapear in the diffstat for the above. clps711x cleanups, shmobile
header file refactoring/moves for multiplatform friendliness, some misc
cleanups, etc.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.14 (GNU/Linux)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=gbcE
-----END PGP SIGNATURE-----
Merge tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC cleanups from Olof Johansson:
"This merge window brings a good size of cleanups on various platforms.
Among the bigger ones:
- Removal of Samsung s5pc100 and s5p64xx platforms. Both of these
have lacked active support for quite a while, and after asking
around nobody showed interest in keeping them around. If needed,
they could be resurrected in the future but it's more likely that
we would prefer reintroduction of them as DT and
multiplatform-enabled platforms instead.
- OMAP4 controller code register define diet. They defined a lot of
registers that were never actually used, etc.
- Move of some of the Tegra platform code (PMC, APBIO, fuse,
powergate) to drivers/soc so it can be shared with 64-bit code.
This also converts them over to traditional driver models where
possible.
- Removal of legacy gpio-samsung driver, since the last users have
been removed (moved to pinctrl)
Plus a bunch of smaller changes for various platforms that sort of
dissapear in the diffstat for the above. clps711x cleanups, shmobile
header file refactoring/moves for multiplatform friendliness, some
misc cleanups, etc"
* tag 'cleanup-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (117 commits)
drivers: CCI: Correct use of ! and &
video: clcd-versatile: Depend on ARM
video: fix up versatile CLCD helper move
MAINTAINERS: Add sdhci-st file to ARCH/STI architecture
ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
MAINTAINERS: Remove Kirkwood
ARM: tegra: Convert PMC to a driver
soc/tegra: fuse: Set up in early initcall
ARM: tegra: Always lock the CPU reset vector
ARM: tegra: Setup CPU hotplug in a pure initcall
soc/tegra: Implement runtime check for Tegra SoCs
soc/tegra: fuse: fix dummy functions
soc/tegra: fuse: move APB DMA into Tegra20 fuse driver
soc/tegra: Add efuse and apbmisc bindings
soc/tegra: Add efuse driver for Tegra
ARM: tegra: move fuse exports to soc/tegra/fuse.h
ARM: tegra: export apb dma readl/writel
ARM: tegra: Use a function to get the chip ID
ARM: tegra: Sort includes alphabetically
ARM: tegra: Move includes to include/soc/tegra
...
Now IOAPIC driver dynamically allocates IRQ numbers for IOAPIC pins.
We need to keep IRQ assignment for PCI devices during suspend/hibernation,
otherwise it may cause failure of suspend/hibernation due to:
1) Device driver calls pci_enable_device() to allocate an IRQ number
and register interrupt handler on the returned IRQ.
2) Device driver's suspend callback calls pci_disable_device() and
release assigned IRQ in turn.
3) Device driver's resume callback calls pci_enable_device() to
allocate IRQ number again. A different IRQ number may be assigned
by IOAPIC driver this time.
4) Now the hardware delivers interrupt to the new IRQ but interrupt
handler is still registered against the old IRQ, so it breaks
suspend/hibernation.
To fix this issue, we keep IRQ assignment during suspend/hibernation.
Flag pci_dev.dev.power.is_prepared is used to detect that
pci_disable_device() is called during suspend/hibernation.
Reported-and-Tested-by: Borislav Petkov <bp@suse.de>
Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Joerg Roedel <joro@8bytes.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Rafael J. Wysocki <rjw@rjwysocki.net>
Cc: Bjorn Helgaas <bhelgaas@google.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: Grant Likely <grant.likely@linaro.org>
Cc: Len Brown <lenb@kernel.org>
Link: http://lkml.kernel.org/r/1407478071-29399-1-git-send-email-jiang.liu@linux.intel.com
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
The strings used to list IPIs in /proc/interrupts are reused for tracing
purposes.
While at it, the code is slightly cleaned up so the ipi_types array
indices are no longer offset by IPI_RESCHEDULE whose value is 0 anyway.
Link: http://lkml.kernel.org/p/1406318733-26754-5-git-send-email-nicolas.pitre@linaro.org
Acked-by: Will Deacon <will.deacon@arm.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
The strings used to list IPIs in /proc/interrupts are reused for tracing
purposes.
While at it, prevent a negative ipinr from escaping the range check
in handle_IPI().
Link: http://lkml.kernel.org/p/1406318733-26754-4-git-send-email-nicolas.pitre@linaro.org
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Pull DRM updates from Dave Airlie:
"Like all good pull reqs this ends with a revert, so it must mean we
tested it,
[ Ed. That's _one_ way of looking at it ]
This pull is missing nouveau, Ben has been stuck trying to track down
a very longstanding bug that revealed itself due to some other
changes. I've asked him to send you a direct pull request for nouveau
once he cleans things up. I'm away until Monday so don't want to
delay things, you can make a decision on that when he sends it, I have
my phone so I can ack things just not really merge much.
It has one trivial conflict with your tree in armada_drv.c, and also
the pull request contains some component changes that are already in
your tree, the base tree from Russell went via Greg's tree already,
but some stuff still shows up in here that doesn't when I merge my
tree into yours.
Otherwise all pretty standard graphics fare, one new driver and
changes all over the place.
New drivers:
- sti kms driver for STMicroelectronics chipsets stih416 and stih407.
core:
- lots of cleanups to the drm core
- DP MST helper code merged
- universal cursor planes.
- render nodes enabled by default
panel:
- better panel interfaces
- new panel support
- non-continuous cock advertising ability
ttm:
- shrinker fixes
i915:
- hopefully ditched UMS support
- runtime pm fixes
- psr tracking and locking - now enabled by default
- userptr fixes
- backlight brightness fixes
- MST support merged
- runtime PM for dpms
- primary planes locking fixes
- gen8 hw semaphore support
- fbc fixes
- runtime PM on SOix sleep state hw.
- mmio base page flipping
- lots of vlv/chv fixes.
- universal cursor planes
radeon:
- Hawaii fixes
- display scalar support for non-fixed mode displays
- new firmware format support
- dpm on more asics by default
- GPUVM improvements
- uncached and wc GTT buffers
- BOs > visible VRAM
exynos:
- i80 interface support
- module auto-loading
- ipp driver consolidated.
armada:
- irq handling in crtc layer only
- crtc renumbering
- add component support
- DT interaction changes.
tegra:
- load as module fixes
- eDP bpp and sync polarity fixed
- DSI non-continuous clock mode support
- better support for importing buffers from nouveau
msm:
- mdp5/adq8084 v1.3 hw enablement
- devicetree clk changse
- ifc6410 board working
tda998x:
- component support
- DT documentation update
vmwgfx:
- fix compat shader namespace"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (551 commits)
Revert "drm: drop redundant drm_file->is_master"
drm/panel: simple: Use devm_gpiod_get_optional()
drm/dsi: Replace upcasting macro by function
drm/panel: ld9040: Replace upcasting macro by function
drm/exynos: dp: Modify driver to support drm_panel
drm/exynos: Move DP setup into commit()
drm/panel: simple: Add AUO B133HTN01 panel support
drm/panel: simple: Support delays in panel functions
drm/panel: simple: Add proper definition for prepare and unprepare
drm/panel: s6e8aa0: Add proper definition for prepare and unprepare
drm/panel: ld9040: Add proper definition for prepare and unprepare
drm/tegra: Add support for panel prepare and unprepare routines
drm/exynos: dsi: Add support for panel prepare and unprepare routines
drm/exynos: dpi: Add support for panel prepare and unprepare routines
drm/panel: simple: Add dummy prepare and unprepare routines
drm/panel: s6e8aa0: Add dummy prepare and unprepare routines
drm/panel: ld9040: Add dummy prepare and unprepare routines
drm/panel: Provide convenience wrapper for .get_modes()
drm/panel: add .prepare() and .unprepare() functions
drm/panel: simple: Remove simple-panel compatible
...
development cycle:
- Get rid of the .disable() callback from the driver callback
vtable. This callback was abused and counterintuitive since
a pin or group of pins can be said to always be in some
setting, and never really disabled. We now only enable a
certain muxing, and move between some certain muxings, we
never "disable" a mux setting.
- Some janitorial moving the MSM, Samsung and Nomadik and
drivers to their own subdirectories for a clearer view in
the subsystem. This will continue.
- Kill off the use of the return value from gpiochip_remove(),
this will be done in parallel in the GPIO subsystem and
hopefully not trigger too many unchecked return value
warnings before we get rid of this altogether.
- A huge set of changes and improvements to the Allwinner
sunxi drivers especially for their latest A23 and A31 SoCs,
and some ground work for the new sun8i platform family.
- A large set of Rockchip driver improvements adding support
for the RK3288 SoC.
- Advances in migration of older Freescale platforms to pin
control, especially i.MX1.
- Samsung and Exynos improvements.
- Support for the Qualcomm MSM8960 SoC.
- Use the gpiolib irqchip helpers for the ST SPEAr and
Intel Baytrail drivers.
- A bunch of nice janitorial work done with cppcheck.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1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=t1pR
-----END PGP SIGNATURE-----
Merge tag 'pinctrl-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl
Pull pinctrl updates from Linus Walleij:
"This is the bulk pin control changes for the v3.17 merge development
cycle:
- get rid of the .disable() callback from the driver callback vtable.
This callback was abused and counterintuitive since a pin or group
of pins can be said to always be in some setting, and never really
disabled. We now only enable a certain muxing, and move between
some certain muxings, we never "disable" a mux setting
- some janitorial moving the MSM, Samsung and Nomadik and drivers to
their own subdirectories for a clearer view in the subsystem. This
will continue
- kill off the use of the return value from gpiochip_remove(), this
will be done in parallel in the GPIO subsystem and hopefully not
trigger too many unchecked return value warnings before we get rid
of this altogether
- a huge set of changes and improvements to the Allwinner sunxi
drivers especially for their latest A23 and A31 SoCs, and some
ground work for the new sun8i platform family
- a large set of Rockchip driver improvements adding support for the
RK3288 SoC
- advances in migration of older Freescale platforms to pin control,
especially i.MX1
- Samsung and Exynos improvements
- support for the Qualcomm MSM8960 SoC
- use the gpiolib irqchip helpers for the ST SPEAr and Intel Baytrail
drivers
- a bunch of nice janitorial work done with cppcheck"
* tag 'pinctrl-v3.17-1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl: (61 commits)
pinctrl: baytrail: Convert to use gpiolib irqchip
pinctrl: sunxi: number gpio ranges starting from 0
pinctrl: sunxi: use gpiolib API to mark a GPIO used as an IRQ
pinctrl: rockchip: add drive-strength control for rk3288
pinctrl: rockchip: add separate type for rk3288
pinctrl: rockchip: set is_generic in pinconf_ops
pinctrl: msm: drop negativity check on unsigned value
pinctrl: remove all usage of gpio_remove ret val in driver/pinctl
pinctrl: qcom: Make muxing of gpio function explicit
pinctrl: nomadik: move all Nomadik drivers to subdir
pinctrl: samsung: Group all drivers in a sub-dir
sh-pfc: sh73a0: Introduce the use of devm_regulator_register
sh-pfc: Add renesas,pfc-r8a7791 to binding documentation
pinctrl: msm: move all qualcomm drivers to subdir
pinctrl: msm: Add msm8960 definitions
pinctrl: samsung: Allow pin value to be initialized using pinfunc
pinctrl: samsung: Allow grouping multiple pinmux/pinconf nodes
pinctrl: exynos: Consolidate irq_chips of GPIO and WKUP EINTs
pinctrl: samsung: Handle GPIO request and free using pinctrl helpers
pinctrl: samsung: Decouple direction setting from pinctrl
...
Commit 609838cfed ("mm: invoke oom-killer from remaining unconverted page
fault handlers") converted arc to call pagefault_out_of_memory(), so remove
the comment about future conversion.
Cc: Johannes Weiner <hannes@cmpxchg.org>
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
Merging in the few fixes we had also received, no need to keep those in
a separate branch.
* next/fixes-non-critical:
drivers: CCI: Correct use of ! and &
MAINTAINERS: Add sdhci-st file to ARCH/STI architecture
ARM: EXYNOS: Fix build breakge with PM_SLEEP=n
ARM: omap2+: gpmc-nand: Use dynamic platform_device_alloc()
omap16xx: Removes fixme no longer needed in ocpi_enable()
ARM: dts: OMAP5: Add device nodes for ABB
ARM: omap2+: usb-tusb6010.c: Cleaning up variable is set more than once
Signed-off-by: Olof Johansson <olof@lixom.net>
they had small conflicts (respectively within KVM documentation,
and with 3.16-rc changes). Since they were all within the subsystem,
I took care of them.
Stephen Rothwell reported some snags in PPC builds, but they are all
fixed now; the latest linux-next report was clean.
New features for ARM include:
- KVM VGIC v2 emulation on GICv3 hardware
- Big-Endian support for arm/arm64 (guest and host)
- Debug Architecture support for arm64 (arm32 is on Christoffer's todo list)
And for PPC:
- Book3S: Good number of LE host fixes, enable HV on LE
- Book3S HV: Add in-guest debug support
This release drops support for KVM on the PPC440. As a result, the
PPC merge removes more lines than it adds. :)
I also included an x86 change, since Davidlohr tied it to an independent
bug report and the reporter quickly provided a Tested-by; there was no
reason to wait for -rc2.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=hyQP
-----END PGP SIGNATURE-----
Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull second round of KVM changes from Paolo Bonzini:
"Here are the PPC and ARM changes for KVM, which I separated because
they had small conflicts (respectively within KVM documentation, and
with 3.16-rc changes). Since they were all within the subsystem, I
took care of them.
Stephen Rothwell reported some snags in PPC builds, but they are all
fixed now; the latest linux-next report was clean.
New features for ARM include:
- KVM VGIC v2 emulation on GICv3 hardware
- Big-Endian support for arm/arm64 (guest and host)
- Debug Architecture support for arm64 (arm32 is on Christoffer's todo list)
And for PPC:
- Book3S: Good number of LE host fixes, enable HV on LE
- Book3S HV: Add in-guest debug support
This release drops support for KVM on the PPC440. As a result, the
PPC merge removes more lines than it adds. :)
I also included an x86 change, since Davidlohr tied it to an
independent bug report and the reporter quickly provided a Tested-by;
there was no reason to wait for -rc2"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (122 commits)
KVM: Move more code under CONFIG_HAVE_KVM_IRQFD
KVM: nVMX: fix "acknowledge interrupt on exit" when APICv is in use
KVM: nVMX: Fix nested vmexit ack intr before load vmcs01
KVM: PPC: Enable IRQFD support for the XICS interrupt controller
KVM: Give IRQFD its own separate enabling Kconfig option
KVM: Move irq notifier implementation into eventfd.c
KVM: Move all accesses to kvm::irq_routing into irqchip.c
KVM: irqchip: Provide and use accessors for irq routing table
KVM: Don't keep reference to irq routing table in irqfd struct
KVM: PPC: drop duplicate tracepoint
arm64: KVM: fix 64bit CP15 VM access for 32bit guests
KVM: arm64: GICv3: mandate page-aligned GICV region
arm64: KVM: GICv3: move system register access to msr_s/mrs_s
KVM: PPC: PR: Handle FSCR feature deselects
KVM: PPC: HV: Remove generic instruction emulation
KVM: PPC: BOOKEHV: rename e500hv_spr to bookehv_spr
KVM: PPC: Remove DCR handling
KVM: PPC: Expose helper functions for data/inst faults
KVM: PPC: Separate loadstore emulation from priv emulation
KVM: PPC: Handle magic page in kvmppc_ld/st
...
- Note that Konrad is xen-blkkback/front maintainer.
- Add 'xen_nopv' option to disable PV extentions for x86 HVM guests.
- Misc. minor cleanups.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.12 (GNU/Linux)
iQEcBAABAgAGBQJT4N57AAoJEFxbo/MsZsTRtfsH/2GxmloKqMZqusnz5PR/x2hd
M3aXtDw36rxv3hEciIs/NX6obMenRdofDKXVMafnU/gw+EOBQQQ2n/nDqcLOSN+0
hVyrKHgByYQKaeAhAbrGiGIkuoe5JAURsaggx/YlYSx3hkE0za1XmcUjkPFEVP3l
UeXXJ40H9hHgESsDwd1UQ08YNtvwdaWVHJAjio3jSxCBAHnAPhCqPhKVy/6LOr+U
T6HgYsX9HLQRYBy34OOYfKBFnGOJpstnZJd3hMTYtrF4xaTl/Cnf+YxKxv/XJtGD
YHukhQaEyws7RaDAXK1Uty1hlqgzDoVcFz1TixJIrF6YaO2QhhjMa/oYkbBW09s=
=Ojrz
-----END PGP SIGNATURE-----
Merge tag 'stable/for-linus-3.17-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull Xen updates from David Vrabel:
- remove unused V2 grant table support
- note that Konrad is xen-blkkback/front maintainer
- add 'xen_nopv' option to disable PV extentions for x86 HVM guests
- misc minor cleanups
* tag 'stable/for-linus-3.17-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
xen-pciback: Document the 'quirks' sysfs file
xen/pciback: Fix error return code in xen_pcibk_attach()
xen/events: drop negativity check of unsigned parameter
xen/setup: Remove Identity Map Debug Message
xen/events/fifo: remove a unecessary use of BM()
xen/events/fifo: ensure all bitops are properly aligned even on x86
xen/events/fifo: reset control block and local HEADs on resume
xen/arm: use BUG_ON
xen/grant-table: remove support for V2 tables
x86/xen: safely map and unmap grant frames when in atomic context
MAINTAINERS: Make me the Xen block subsystem (front and back) maintainer
xen: Introduce 'xen_nopv' to disable PV extensions for HVM guests.
- Add new syscall and fix comment
- Fix udelay implementation
- Fix libgcc for modules
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1.4.10 (GNU/Linux)
iEYEABECAAYFAlPjhAQACgkQykllyylKDCFx2gCdFedjCmO2eKBZe3+ELIPhmOPc
HoYAni1BkroC8aOltwfm7BUQniOShrls
=ubIU
-----END PGP SIGNATURE-----
Merge tag 'microblaze-3.17-rc1' of git://git.monstr.eu/linux-2.6-microblaze
Pull microblaze updates from Michal Simek:
- add new syscall and fix comment
- fix udelay implementation
- fix libgcc for modules
* tag 'microblaze-3.17-rc1' of git://git.monstr.eu/linux-2.6-microblaze:
microblaze: Change libgcc-style functions from lib-y to obj-y
microblaze: Wire-up renameat2 syscall
microblaze: Add syscall number comment
microblaze: delay.h fix udelay and ndelay for 8 bit args
Pull powerpc updates from Ben Herrenschmidt:
"This is the powerpc new goodies for 3.17. The short story:
The biggest bit is Michael removing all of pre-POWER4 processor
support from the 64-bit kernel. POWER3 and rs64. This gets rid of a
ton of old cruft that has been bitrotting in a long while. It was
broken for quite a few versions already and nobody noticed. Nobody
uses those machines anymore. While at it, he cleaned up a bunch of
old dusty cabinets, getting rid of a skeletton or two.
Then, we have some base VFIO support for KVM, which allows assigning
of PCI devices to KVM guests, support for large 64-bit BARs on
"powernv" platforms, support for HMI (Hardware Management Interrupts)
on those same platforms, some sparse-vmemmap improvements (for memory
hotplug),
There is the usual batch of Freescale embedded updates (summary in the
merge commit) and fixes here or there, I think that's it for the
highlights"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (102 commits)
powerpc/eeh: Export eeh_iommu_group_to_pe()
powerpc/eeh: Add missing #ifdef CONFIG_IOMMU_API
powerpc: Reduce scariness of interrupt frames in stack traces
powerpc: start loop at section start of start in vmemmap_populated()
powerpc: implement vmemmap_free()
powerpc: implement vmemmap_remove_mapping() for BOOK3S
powerpc: implement vmemmap_list_free()
powerpc: Fail remap_4k_pfn() if PFN doesn't fit inside PTE
powerpc/book3s: Fix endianess issue for HMI handling on napping cpus.
powerpc/book3s: handle HMIs for cpus in nap mode.
powerpc/powernv: Invoke opal call to handle hmi.
powerpc/book3s: Add basic infrastructure to handle HMI in Linux.
powerpc/iommu: Fix comments with it_page_shift
powerpc/powernv: Handle compound PE in config accessors
powerpc/powernv: Handle compound PE for EEH
powerpc/powernv: Handle compound PE
powerpc/powernv: Split ioda_eeh_get_state()
powerpc/powernv: Allow to freeze PE
powerpc/powernv: Enable M64 aperatus for PHB3
powerpc/eeh: Aux PE data for error log
...
Pull MIPS updates from Ralf Baechle:
"This is the main pull request for 3.17. It contains:
- misc Cavium Octeon, BCM47xx, BCM63xx and Alchemy updates
- MIPS ptrace updates and cleanups
- various fixes that will also go to -stable
- a number of cleanups and small non-critical fixes.
- NUMA support for the Loongson 3.
- more support for MSA
- support for MAAR
- various FP enhancements and fixes"
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (139 commits)
MIPS: jz4740: remove unnecessary null test before debugfs_remove
MIPS: Octeon: remove unnecessary null test before debugfs_remove_recursive
MIPS: ZBOOT: implement stack protector in compressed boot phase
MIPS: mipsreg: remove duplicate MIPS_CONF4_FTLBSETS_SHIFT
MIPS: Bonito64: remove a duplicate define
MIPS: Malta: initialise MAARs
MIPS: Initialise MAARs
MIPS: detect presence of MAARs
MIPS: define MAAR register accessors & bits
MIPS: mark MSA experimental
MIPS: Don't build MSA support unless it can be used
MIPS: consistently clear MSA flags when starting & copying threads
MIPS: 16 byte align MSA vector context
MIPS: disable preemption whilst initialising MSA
MIPS: ensure MSA gets disabled during boot
MIPS: fix read_msa_* & write_msa_* functions on non-MSA toolchains
MIPS: fix MSA context for tasks which don't use FP first
MIPS: init upper 64b of vector registers when MSA is first used
MIPS: save/disable MSA in lose_fpu
MIPS: preserve scalar FP CSR when switching vector context
...
Pull s390 updates from Martin Schwidefsky:
"Mostly cleanups and bug-fixes, with two exceptions.
The first is lazy flushing of I/O-TLBs for PCI to improve performance,
the second is software dirty bits in the pmd for the madvise-free
implementation"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (24 commits)
s390/locking: Reenable optimistic spinning
s390/mm: implement dirty bits for large segment table entries
KVM: s390/mm: Fix page table locking vs. split pmd lock
s390/dasd: fix camel case
s390/3215: fix hanging console issue
s390/irq: improve displayed interrupt order in /proc/interrupts
s390/seccomp: fix error return for filtered system calls
s390/pci: introduce lazy IOTLB flushing for DMA unmap
dasd: fix error recovery for alias devices during format
dasd: fix list_del corruption during format
dasd: fix unresponsive device during format
dasd: use aliases for formatted devices during format
s390/pci: fix kmsg component
s390/kdump: Return NOTIFY_OK for all actions other than MEM_GOING_OFFLINE
s390/watchdog: Fix module name in Kconfig help text
s390/dasd: replace seq_printf by seq_puts
s390/dasd: replace pr_warning by pr_warn
s390/dasd: Move EXPORT_SYMBOL after function/variable
s390/dasd: remove unnecessary null test before debugfs_remove
s390/zfcp: use qdio buffer helpers
...
Convert a zero return value on error to a negative one, as returned
elsewhere in the function.
A simplified version of the semantic match that finds this problem is as
follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
identifier ret; expression e1,e2;
@@
(
if (\(ret < 0\|ret != 0\))
{ ... return ret; }
|
ret = 0
)
... when != ret = e1
when != &ret
*if(...)
{
... when != ret = e2
when forall
return ret;
}
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
If you don't have a store function, you're not writable anyway!
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Acked-by: Stewart Smith <stewart@linux.vnet.ibm.com>
Merge incoming from Andrew Morton:
- Various misc things.
- arch/sh updates.
- Part of ocfs2. Review is slow.
- Slab updates.
- Most of -mm.
- printk updates.
- lib/ updates.
- checkpatch updates.
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (226 commits)
checkpatch: update $declaration_macros, add uninitialized_var
checkpatch: warn on missing spaces in broken up quoted
checkpatch: fix false positives for --strict "space after cast" test
checkpatch: fix false positive MISSING_BREAK warnings with --file
checkpatch: add test for native c90 types in unusual order
checkpatch: add signed generic types
checkpatch: add short int to c variable types
checkpatch: add for_each tests to indentation and brace tests
checkpatch: fix brace style misuses of else and while
checkpatch: add --fix option for a couple OPEN_BRACE misuses
checkpatch: use the correct indentation for which()
checkpatch: add fix_insert_line and fix_delete_line helpers
checkpatch: add ability to insert and delete lines to patch/file
checkpatch: add an index variable for fixed lines
checkpatch: warn on break after goto or return with same tab indentation
checkpatch: emit a warning on file add/move/delete
checkpatch: add test for commit id formatting style in commit log
checkpatch: emit fewer kmalloc_array/kcalloc conversion warnings
checkpatch: improve "no space after cast" test
checkpatch: allow multiple const * types
...
Pull trivial tree changes from Jiri Kosina:
"Summer edition of trivial tree updates"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (23 commits)
doc: fix two typos in watchdog-api.txt
irq-gic: remove file name from heading comment
MAINTAINERS: Add miscdevice.h to file list for char/misc drivers.
scsi: mvsas: mv_sas.c: Fix for possible null pointer dereference
doc: replace "practise" with "practice" in Documentation
befs: remove check for CONFIG_BEFS_RW
scsi: doc: fix 'SCSI_NCR_SETUP_MASTER_PARITY'
drivers/usb/phy/phy.c: remove a leading space
mfd: fix comment
cpuidle: fix comment
doc: hpfall.c: fix missing null-terminate after strncpy call
usb: doc: hotplug.txt code typos
kbuild: fix comment in Makefile.modinst
SH: add proper prompt to SH_MAGIC_PANEL_R2_VERSION
ARM: msm: Remove MSM_SCM
crypto: Remove MPILIB_EXTRA
doc: CN: remove dead link, kerneltrap.org no longer works
media: update reference, kerneltrap.org no longer works
hexagon: update reference, kerneltrap.org no longer works
doc: LSM: update reference, kerneltrap.org no longer works
...
- ACPICA update to upstream version 20140724. That includes
ACPI 5.1 material (support for the _CCA and _DSD predefined names,
changes related to the DMAR and PCCT tables and ARM support among
other things) and cleanups related to using ACPICA's header files.
A major part of it is related to acpidump and the core code used
by that utility. Changes from Bob Moore, David E Box, Lv Zheng,
Sascha Wildner, Tomasz Nowicki, Hanjun Guo.
- Radix trees for memory bitmaps used by the hibernation core from
Joerg Roedel.
- Support for waking up the system from suspend-to-idle (also known
as the "freeze" sleep state) using ACPI-based PCI wakeup signaling
(Rafael J Wysocki).
- Fixes for issues related to ACPI button events (Rafael J Wysocki).
- New device ID for an ACPI-enumerated device included into the
Wildcat Point PCH from Jie Yang.
- ACPI video updates related to backlight handling from Hans de Goede
and Linus Torvalds.
- Preliminary changes needed to support ACPI on ARM from Hanjun Guo
and Graeme Gregory.
- ACPI PNP core cleanups from Arjun Sreedharan and Zhang Rui.
- Cleanups related to ACPI_COMPANION() and ACPI_HANDLE() macros
(Rafael J Wysocki).
- ACPI-based device hotplug cleanups from Wei Yongjun and
Rafael J Wysocki.
- Cleanups and improvements related to system suspend from
Lan Tianyu, Randy Dunlap and Rafael J Wysocki.
- ACPI battery cleanup from Wei Yongjun.
- cpufreq core fixes from Viresh Kumar.
- Elimination of a deadband effect from the cpufreq ondemand
governor and intel_pstate driver cleanups from Stratos Karafotis.
- 350MHz CPU support for the powernow-k6 cpufreq driver from
Mikulas Patocka.
- Fix for the imx6 cpufreq driver from Anson Huang.
- cpuidle core and governor cleanups from Daniel Lezcano,
Sandeep Tripathy and Mohammad Merajul Islam Molla.
- Build fix for the big_little cpuidle driver from Sachin Kamat.
- Configuration fix for the Operation Performance Points (OPP)
framework from Mark Brown.
- APM cleanup from Jean Delvare.
- cpupower utility fixes and cleanups from Peter Senna Tschudin,
Andrey Utkin, Himangi Saraogi, Rickard Strandqvist, Thomas Renninger.
/
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=ZODv
-----END PGP SIGNATURE-----
Merge tag 'pm+acpi-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI and power management updates from Rafael Wysocki:
"Again, ACPICA leads the pack (47 commits), followed by cpufreq (18
commits) and system suspend/hibernation (9 commits).
From the new code perspective, the ACPICA update brings ACPI 5.1 to
the table, including a new device configuration object called _DSD
(Device Specific Data) that will hopefully help us to operate device
properties like Device Trees do (at least to some extent) and changes
related to supporting ACPI on ARM.
Apart from that we have hibernation changes making it use radix trees
to store memory bitmaps which should speed up some operations carried
out by it quite significantly. We also have some power management
changes related to suspend-to-idle (the "freeze" sleep state) support
and more preliminary changes needed to support ACPI on ARM (outside of
ACPICA).
The rest is fixes and cleanups pretty much everywhere.
Specifics:
- ACPICA update to upstream version 20140724. That includes ACPI 5.1
material (support for the _CCA and _DSD predefined names, changes
related to the DMAR and PCCT tables and ARM support among other
things) and cleanups related to using ACPICA's header files. A
major part of it is related to acpidump and the core code used by
that utility. Changes from Bob Moore, David E Box, Lv Zheng,
Sascha Wildner, Tomasz Nowicki, Hanjun Guo.
- Radix trees for memory bitmaps used by the hibernation core from
Joerg Roedel.
- Support for waking up the system from suspend-to-idle (also known
as the "freeze" sleep state) using ACPI-based PCI wakeup signaling
(Rafael J Wysocki).
- Fixes for issues related to ACPI button events (Rafael J Wysocki).
- New device ID for an ACPI-enumerated device included into the
Wildcat Point PCH from Jie Yang.
- ACPI video updates related to backlight handling from Hans de Goede
and Linus Torvalds.
- Preliminary changes needed to support ACPI on ARM from Hanjun Guo
and Graeme Gregory.
- ACPI PNP core cleanups from Arjun Sreedharan and Zhang Rui.
- Cleanups related to ACPI_COMPANION() and ACPI_HANDLE() macros
(Rafael J Wysocki).
- ACPI-based device hotplug cleanups from Wei Yongjun and Rafael J
Wysocki.
- Cleanups and improvements related to system suspend from Lan
Tianyu, Randy Dunlap and Rafael J Wysocki.
- ACPI battery cleanup from Wei Yongjun.
- cpufreq core fixes from Viresh Kumar.
- Elimination of a deadband effect from the cpufreq ondemand governor
and intel_pstate driver cleanups from Stratos Karafotis.
- 350MHz CPU support for the powernow-k6 cpufreq driver from Mikulas
Patocka.
- Fix for the imx6 cpufreq driver from Anson Huang.
- cpuidle core and governor cleanups from Daniel Lezcano, Sandeep
Tripathy and Mohammad Merajul Islam Molla.
- Build fix for the big_little cpuidle driver from Sachin Kamat.
- Configuration fix for the Operation Performance Points (OPP)
framework from Mark Brown.
- APM cleanup from Jean Delvare.
- cpupower utility fixes and cleanups from Peter Senna Tschudin,
Andrey Utkin, Himangi Saraogi, Rickard Strandqvist, Thomas
Renninger"
* tag 'pm+acpi-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (118 commits)
ACPI / LPSS: add LPSS device for Wildcat Point PCH
ACPI / PNP: Replace faulty is_hex_digit() by isxdigit()
ACPICA: Update version to 20140724.
ACPICA: ACPI 5.1: Update for PCCT table changes.
ACPICA/ARM: ACPI 5.1: Update for GTDT table changes.
ACPICA/ARM: ACPI 5.1: Update for MADT changes.
ACPICA/ARM: ACPI 5.1: Update for FADT changes.
ACPICA: ACPI 5.1: Support for the _CCA predifined name.
ACPICA: ACPI 5.1: New notify value for System Affinity Update.
ACPICA: ACPI 5.1: Support for the _DSD predefined name.
ACPICA: Debug object: Add current value of Timer() to debug line prefix.
ACPICA: acpihelp: Add UUID support, restructure some existing files.
ACPICA: Utilities: Fix local printf issue.
ACPICA: Tables: Update for DMAR table changes.
ACPICA: Remove some extraneous printf arguments.
ACPICA: Update for comments/formatting. No functional changes.
ACPICA: Disassembler: Add support for the ToUUID opererator (macro).
ACPICA: Remove a redundant cast to acpi_size for ACPI_OFFSET() macro.
ACPICA: Work around an ancient GCC bug.
ACPI / processor: Make it possible to get local x2apic id via _MAT
...
This patch set consists of the usual driver updates (ufs, storvsc, pm8001
hpsa). It also has removal of the user space target driver code (everyone is
using LIO now), a partial PCI MSI-X update, more multi-queue updates,
conversion to 64 bit LUNs (so we could theoretically cope with any LUN
returned by a device) and placeholder support for the ZBC device type (Shingle
drives), plus an assortment of minor updates and bug fixes.
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)
iQEcBAABAgAGBQJT4mS9AAoJEDeqqVYsXL0Mq34H/2AeXiM8GEVO3PIsBtF3TFZ9
poJvAyb8t//+VwAIVLHU9wrssIrIcyvNQmNHH/InGt5rOaXwGQRsnEc73bBtot4b
aC1t+hAnp2Ddvu6phmyUg7iY2GmQhAoZmeaj7krGIu2XgtLGiPg26eSsgk4Yv/U9
cuULEuOc/UnTj3w5VK8SvpyXMybVF6oQhSrS1slOglfFwPTlTI/NHU9xo7Wc3qHT
VifHXNphIvye5EH8zwtKX5p8qCrFW0pevJwyfPz7Hp2CTA9XYKx3SoeOh+n9F9ez
udBBggg7Vb1tb4mPKUoZ78UrtCVdFSCmesBU/RJe7cIh8daKaO5MVr3WPSx2JhM=
=yGai
-----END PGP SIGNATURE-----
Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
"This patch set consists of the usual driver updates (ufs, storvsc,
pm8001 hpsa). It also has removal of the user space target driver
code (everyone is using LIO now), a partial PCI MSI-X update, more
multi-queue updates, conversion to 64 bit LUNs (so we could
theoretically cope with any LUN returned by a device) and placeholder
support for the ZBC device type (Shingle drives), plus an assortment
of minor updates and bug fixes"
* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (143 commits)
scsi: do not issue SCSI RSOC command to Promise Vtrak E610f
vmw_pvscsi: Use pci_enable_msix_exact() instead of pci_enable_msix()
pm8001: Fix invalid return when request_irq() failed
lpfc: Remove superfluous call to pci_disable_msix()
isci: Use pci_enable_msix_exact() instead of pci_enable_msix()
bfa: Use pci_enable_msix_exact() instead of pci_enable_msix()
bfa: Cleanup bfad_setup_intr() function
bfa: Do not call pci_enable_msix() after it failed once
fnic: Use pci_enable_msix_exact() instead of pci_enable_msix()
scsi: use short driver name for per-driver cmd slab caches
scsi_debug: support scsi-mq, queues and locks
Drivers: add blist flags
scsi: ufs: fix endianness sparse warnings
scsi: ufs: make undeclared functions static
bnx2i: Update driver version to 2.7.10.1
pm8001: fix a memory leak in nvmd_resp
pm8001: fix update_flash
pm8001: fix a memory leak in flash_update
pm8001: Cleaning up uninitialized variables
pm8001: Fix to remove null pointer checks that could never happen
...
There've been many updates in ASoC side at this time, especially the
framework enhancement for multiple CODECs on a single DAI and more
componentization works. The only major change in ALSA core is the
addition of timestamp type in sw_params field. This should behave in
backward compatible way. Other than that, there are lots of small
changes and new drivers in wide range, including a large code cut in
HD-audio driver for deprecated static quirks. Some highlights are
below:
ALSA Core:
- Add the new timestamp type field to sw_params to choose
MONOTONIC_RAW type
HD-audio:
- Continued conversion to standard printk macros, generic code
cleanups
- Removal of obsoleted static quirk codes for Conexant and C-Media
codecs
- Fixups for HP Envy TS, Dell XPS 15, HP and Dell mute/mic LED,
Gigabyte BXBT-2807 mobo
- Intel Braswell support
ASoC:
- Support for multiple CODECs attached to a single DAI, enabling
systems with for example multiple DAC/speaker drivers on a single
link, contributed by Benoit Cousson based on work from Misael Lopez
Cruz
- Support for byte controls larger than 256 bytes based on the use of
TLVs contributed by Omair Mohammed Abdullah
- More componentisation work from Lars-Peter Clausen
- The remainder of the conversions of CODEC drivers to params_width()
by Mark Brown
- Drivers for Cirrus Logic CS4265, Freescale i.MX ASRC blocks, Realtek
RT286 and RT5670, Rockchip RK3xxx I2S controllers and Texas
Instruments TAS2552
- Lots of updates and fixes, especially to the DaVinci, Intel,
Freescale, Realtek, and rcar drivers
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2
iQIcBAABAgAGBQJT4fj0AAoJEGwxgFQ9KSmkXQ0QAIiRmVg40aiJoEdOLGgzNZtq
r/nXj69AuB6JSy0hKbFyyijjCcRpyCCGvjDYlogjT75M3c35Npz/m85oZHx2tajD
SB5OA+QxO4EQ3C0GjITIRHJROm4MM8/rnbnNYTsWnEGRkobTFTl0rHbSkA85RGFt
0zZqqs1R0s/nO9PMQ+5PA5x9xVFiZs2COeCK0CFA9s2ACf/hbxJBRIqYpIFWOo78
9L41jBOFuC/hIb4qwjgmsCWbKe1KQysTAf+Wty0CKipJ6VhfCbPn1Qn1zXGeUOxc
mj4eZ6LpJTrVMr/UN02c5vgPOiaBrQ7fWZo3dVHLlIjC6cEI1tUvNYAin7CMEzx8
DUsvo9p30OheA+ijc9wKaYFY6YmmJZRtpnnMd39i0oPG+bhvoV7vjXjJSB1sLJt1
o82xLpVL4Th8H+DMDVwA7UIBvvZGZBusw1qsNGfcOPrmExi4ScGhA0gSOO6W2y1z
VQLRbiXB/HtJGxeqWL6RqJOcLBOlJNmsk4UZMOSCu2OZrWd5I8MuRrNWeHDqhX1H
+VDEJVhFmM21vMpnobzEPxWsMgTVIAVf3Thh+WgaPxL4Krh0vkpZsgZk16VVmy/o
OJJF3n41FND4n9zSjOe4MkuL8UCOUpKCaBdqj9K1s6UKwOEKuDNslyT/zqutRWK5
x1uApU5y+E4iQT/b7cmA
=RL72
-----END PGP SIGNATURE-----
Merge tag 'sound-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
"There've been many updates in ASoC side at this time, especially the
framework enhancement for multiple CODECs on a single DAI and more
componentization works.
The only major change in ALSA core is the addition of timestamp type
in sw_params field. This should behave in backward compatible way.
Other than that, there are lots of small changes and new drivers in
wide range, including a large code cut in HD-audio driver for
deprecated static quirks. Some highlights are below:
ALSA Core:
- Add the new timestamp type field to sw_params to choose
MONOTONIC_RAW type
HD-audio:
- Continued conversion to standard printk macros, generic code
cleanups
- Removal of obsoleted static quirk codes for Conexant and C-Media
codecs
- Fixups for HP Envy TS, Dell XPS 15, HP and Dell mute/mic LED,
Gigabyte BXBT-2807 mobo
- Intel Braswell support
ASoC:
- Support for multiple CODECs attached to a single DAI, enabling
systems with for example multiple DAC/speaker drivers on a single
link, contributed by Benoit Cousson based on work from Misael Lopez
Cruz
- Support for byte controls larger than 256 bytes based on the use of
TLVs contributed by Omair Mohammed Abdullah
- More componentisation work from Lars-Peter Clausen
- The remainder of the conversions of CODEC drivers to params_width()
by Mark Brown
- Drivers for Cirrus Logic CS4265, Freescale i.MX ASRC blocks,
Realtek RT286 and RT5670, Rockchip RK3xxx I2S controllers and Texas
Instruments TAS2552
- Lots of updates and fixes, especially to the DaVinci, Intel,
Freescale, Realtek, and rcar drivers"
* tag 'sound-3.17-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (402 commits)
ALSA: usb-audio: Whitespace cleanups for sound/usb/midi.*
ALSA: usb-audio: Respond to suspend and resume callbacks for MIDI input
sound/oss/pss: Remove typedefs pss_mixerdata and pss_confdata
sound/oss/opl3: Remove typedef opl_devinfo
ALSA: fireworks: fix specifiers in format strings for propper output
ASoC: imx-audmux: Use uintptr_t for port numbers
ASoC: davinci: Enable menuconfig entry for McASP
ASoC: fsl_asrc: Don't access members of config before checking it
ASoC: fsl_sarc_dma: Check pair before using it
ASoC: adau1977: Fix truncation warning on 64 bit architectures
ALSA: virtuoso: add Xonar Essence STX II support
ALSA: riptide: fix %d confusingly prefixed with 0x in format strings
ALSA: fireworks: fix %d confusingly prefixed with 0x in format strings
ALSA: hda - add codec ID for Braswell display audio codec
ALSA: hda - add PCI IDs for Intel Braswell
ALSA: usb-audio: Adjust Gamecom 780 volume level
ALSA: usb-audio: improve dmesg source grepability
ASoC: rt5670: Fix duplicate const warnings
ASoC: rt5670: Staticise non-exported symbols
ASoC: Intel: update stream only on stream IPC msgs
...
The function is used by VFIO driver, which might be built as a
dynamic module. So it should be exported.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This patch introduces zone_for_memory() to arch_add_memory() on sh to
ensure new, higher memory added into ZONE_MOVABLE if movable zone has
already setup.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: "Mel Gorman" <mgorman@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch introduces zone_for_memory() to arch_add_memory() on powerpc
to ensure new, higher memory added into ZONE_MOVABLE if movable zone has
already setup.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: "Mel Gorman" <mgorman@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch introduces zone_for_memory() to arch_add_memory() on ia64 to
ensure new, higher memory added into ZONE_MOVABLE if movable zone has
already setup.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: "Mel Gorman" <mgorman@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch introduces zone_for_memory() to arch_add_memory() on x86_32
to ensure new, higher memory added into ZONE_MOVABLE if movable zone has
already setup.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: "Mel Gorman" <mgorman@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This patch introduces zone_for_memory() to arch_add_memory() on x86_64
to ensure new, higher memory added into ZONE_MOVABLE if movable zone has
already setup.
Signed-off-by: Wang Nan <wangnan0@huawei.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Yinghai Lu <yinghai@kernel.org>
Cc: "Mel Gorman" <mgorman@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Chris Metcalf <cmetcalf@tilera.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Add a comment describing the circumstances in which
__lock_page_or_retry() will or will not release the mmap_sem when
returning 0.
Add comments to lock_page_or_retry()'s callers (filemap_fault(),
do_swap_page()) noting the impact on VM_FAULT_RETRY returns.
Add comments on up the call tree, particularly replacing the false "We
return with mmap_sem still held" comments.
Signed-off-by: Paul Cassella <cassella@cray.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently map_vm_area() takes (struct page *** pages) as third argument,
and after mapping, it moves (*pages) to point to (*pages +
nr_mappped_pages).
It looks like this kind of increment is useless to its caller these
days. The callers don't care about the increments and actually they're
trying to avoid this by passing another copy to map_vm_area().
The caller can always guarantee all the pages can be mapped into vm_area
as specified in first argument and the caller only cares about whether
map_vm_area() fails or not.
This patch cleans up the pointer movement in map_vm_area() and updates
its callers accordingly.
Signed-off-by: WANG Chao <chaowang@redhat.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Nitin Gupta <ngupta@vflare.org>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Conventionally, we put output param to the end of param list and put the
'base' ahead of 'size', but cma_declare_contiguous() doesn't look like
that, so change it.
Additionally, move down cma_areas reference code to the position where
it is really needed.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Gleb Natapov <gleb@kernel.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Now, we have general CMA reserved area management framework, so use it
for future maintainabilty. There is no functional change.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Gleb Natapov <gleb@kernel.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Minchan Kim <minchan@kernel.org>
Cc: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Currently, there are two users on CMA functionality, one is the DMA
subsystem and the other is the KVM on powerpc. They have their own code
to manage CMA reserved area even if they looks really similar. From my
guess, it is caused by some needs on bitmap management. KVM side wants
to maintain bitmap not for 1 page, but for more size. Eventually it use
bitmap where one bit represents 64 pages.
When I implement CMA related patches, I should change those two places
to apply my change and it seem to be painful to me. I want to change
this situation and reduce future code management overhead through this
patch.
This change could also help developer who want to use CMA in their new
feature development, since they can use CMA easily without copying &
pasting this reserved area management code.
In previous patches, we have prepared some features to generalize CMA
reserved area management and now it's time to do it. This patch moves
core functions to mm/cma.c and change DMA APIs to use these functions.
There is no functional change in DMA APIs.
Signed-off-by: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Acked-by: Michal Nazarewicz <mina86@mina86.com>
Acked-by: Zhang Yanfei <zhangyanfei@cn.fujitsu.com>
Acked-by: Minchan Kim <minchan@kernel.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Alexander Graf <agraf@suse.de>
Cc: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Gleb Natapov <gleb@kernel.org>
Acked-by: Marek Szyprowski <m.szyprowski@samsung.com>
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Paul Mackerras <paulus@samba.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix build error as reported by Geert Uytterhoeven here:
http://kisskb.ellerman.id.au/kisskb/buildresult/11607865/
The error happens when CONFIG_HAS_IOPORT_MAP=n because of which there
are missing definitions of ioport_map/unmap(). Fix this build error by
adding these prototypes.
Signed-off-by: Pranith Kumar <bobby.prani@gmail.com>
Reported-by: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: <stable@vger.kernel.org> [3.16+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Fix the device name for the CMT.
Add clocks called usb0 and usb1 so that r8a66597_hcd works again on the
ecovec24 board
Signed-off-by: Daniel Palmer <danieruru@gmail.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Cc: Richard Weinberger <richard@nod.at>
Cc: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The symbol is an orphan, get rid of it.
Submitted by Richard a few months ago as "[PATCH 21/28] Remove
CPU_SUBTYPE_SH7764".
[pebolle@tiscali.nl: re-added dropped ||]
Signed-off-by: Richard Weinberger <richard@nod.at>
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
'COUNTER' and other same kind macros are too common to use, and easy to
get conflict with other modules.
At present, they are not used, so it is OK to simply remove them. And
the related warning (allmodconfig with score):
CC [M] drivers/md/raid1.o
In file included from drivers/md/raid1.c:42:0:
drivers/md/bitmap.h:93:0: warning: "COUNTER" redefined
#define COUNTER(x) (((bitmap_counter_t) x) & COUNTER_MAX)
^
In file included from ./arch/score/include/asm/ptrace.h:4:0,
from include/linux/sched.h:31,
from include/linux/blkdev.h:4,
from drivers/md/raid1.c:36:
./arch/score/include/uapi/asm/ptrace.h:13:0: note: this is the location of the previous definition
#define COUNTER 38
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Signed-off-by: David Rientjes <rientjes@google.com>
Cc: Lennox Wu <lennox.wu@gmail.com>
Cc: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The prefix suggests the number should be printed in hex, so use
the %x specifier to do that.
Found by using regex suggested by Joe Perches.
Signed-off-by: Hans Wennborg <hans@hanshq.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
See commit c6e9d6f388
random: introduce getrandom(2) system call
for all the details (and even a manual page!)
Signed-off-by: Tony Luck <tony.luck@intel.com>
Pull sparc updates from David Miller:
1) Add sparc RAM output to /proc/iomem, from Bob Picco.
2) Allow seeks on /dev/mdesc, from Khalid Aziz.
3) Cleanup sparc64 I/O accessors, from Sam Ravnborg.
4) If update_mmu_cache{,_pmd}() is called with an not-valid mapping, do
not insert it into the TLB miss hash tables otherwise we'll
livelock. Based upon work by Christopher Alexander Tobias Schulze.
5) Fix BREAK detection in sunsab driver when no actual characters are
pending, from Christopher Alexander Tobias Schulze.
6) Because we have modules --> openfirmware --> vmalloc ordering of
virtual memory, the lazy VMAP TLB flusher can cons up an invocation
of flush_tlb_kernel_range() that covers the openfirmware address
range. Unfortunately this will flush out the firmware's locked TLB
mapping which causes all kinds of trouble. Just split up the flush
request if this happens, but in the long term the lazy VMAP flusher
should probably be made a little bit smarter.
Based upon work by Christopher Alexander Tobias Schulze.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next:
sparc64: Fix up merge thinko.
sparc: Add "install" target
arch/sparc/math-emu/math_32.c: drop stray break operator
sparc64: ldc_connect() should not return EINVAL when handshake is in progress.
sparc64: Guard against flushing openfirmware mappings.
sunsab: Fix detection of BREAK on sunsab serial console
bbc-i2c: Fix BBC I2C envctrl on SunBlade 2000
sparc64: Do not insert non-valid PTEs into the TSB hash table.
sparc64: avoid code duplication in io_64.h
sparc64: reorder functions in io_64.h
sparc64: drop unused SLOW_DOWN_IO definitions
sparc64: remove macro indirection in io_64.h
sparc64: update IO access functions in PeeCeeI
sparcspkr: use sbus_*() primitives for IO
sparc: Add support for seek and shorter read to /dev/mdesc
sparc: use %s for unaligned panic
drivers/sbus/char: Micro-optimization in display7seg.c
display7seg: Introduce the use of the managed version of kzalloc
sparc64 - add mem to iomem resource
Pull networking updates from David Miller:
"Highlights:
1) Steady transitioning of the BPF instructure to a generic spot so
all kernel subsystems can make use of it, from Alexei Starovoitov.
2) SFC driver supports busy polling, from Alexandre Rames.
3) Take advantage of hash table in UDP multicast delivery, from David
Held.
4) Lighten locking, in particular by getting rid of the LRU lists, in
inet frag handling. From Florian Westphal.
5) Add support for various RFC6458 control messages in SCTP, from
Geir Ola Vaagland.
6) Allow to filter bridge forwarding database dumps by device, from
Jamal Hadi Salim.
7) virtio-net also now supports busy polling, from Jason Wang.
8) Some low level optimization tweaks in pktgen from Jesper Dangaard
Brouer.
9) Add support for ipv6 address generation modes, so that userland
can have some input into the process. From Jiri Pirko.
10) Consolidate common TCP connection request code in ipv4 and ipv6,
from Octavian Purdila.
11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.
12) Generic resizable RCU hash table, with intial users in netlink and
nftables. From Thomas Graf.
13) Maintain a name assignment type so that userspace can see where a
network device name came from (enumerated by kernel, assigned
explicitly by userspace, etc.) From Tom Gundersen.
14) Automatic flow label generation on transmit in ipv6, from Tom
Herbert.
15) New packet timestamping facilities from Willem de Bruijn, meant to
assist in measuring latencies going into/out-of the packet
scheduler, latency from TCP data transmission to ACK, etc"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
cxgb4 : Disable recursive mailbox commands when enabling vi
net: reduce USB network driver config options.
tg3: Modify tg3_tso_bug() to handle multiple TX rings
amd-xgbe: Perform phy connect/disconnect at dev open/stop
amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
net: sun4i-emac: fix memory leak on bad packet
sctp: fix possible seqlock seadlock in sctp_packet_transmit()
Revert "net: phy: Set the driver when registering an MDIO bus device"
cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
team: Simplify return path of team_newlink
bridge: Update outdated comment on promiscuous mode
net-timestamp: ACK timestamp for bytestreams
net-timestamp: TCP timestamping
net-timestamp: SCHED timestamp on entering packet scheduler
net-timestamp: add key to disambiguate concurrent datagrams
net-timestamp: move timestamp flags out of sk_flags
net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
cxgb4i : Move stray CPL definitions to cxgb4 driver
tcp: reduce spurious retransmits due to transient SACK reneging
qlcnic: Initialize dcbnl_ops before register_netdev
...
call, which is a superset of OpenBSD's getentropy(2) call, for use
with userspace crypto libraries such as LibreSSL. Also add the
ability to have a kernel thread to pull entropy from hardware rng
devices into /dev/random.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2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=wLqJ
-----END PGP SIGNATURE-----
Merge tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random
Pull randomness updates from Ted Ts'o:
"Cleanups and bug fixes to /dev/random, add a new getrandom(2) system
call, which is a superset of OpenBSD's getentropy(2) call, for use
with userspace crypto libraries such as LibreSSL.
Also add the ability to have a kernel thread to pull entropy from
hardware rng devices into /dev/random"
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
hwrng: Pass entropy to add_hwgenerator_randomness() in bits, not bytes
random: limit the contribution of the hw rng to at most half
random: introduce getrandom(2) system call
hw_random: fix sparse warning (NULL vs 0 for pointer)
random: use registers from interrupted code for CPU's w/o a cycle counter
hwrng: add per-device entropy derating
hwrng: create filler thread
random: add_hwgenerator_randomness() for feeding entropy from devices
random: use an improved fast_mix() function
random: clean up interrupt entropy accounting for archs w/o cycle counters
random: only update the last_pulled time if we actually transferred entropy
random: remove unneeded hash of a portion of the entropy pool
random: always update the entropy pool under the spinlock
Pull security subsystem updates from James Morris:
"In this release:
- PKCS#7 parser for the key management subsystem from David Howells
- appoint Kees Cook as seccomp maintainer
- bugfixes and general maintenance across the subsystem"
* 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security: (94 commits)
X.509: Need to export x509_request_asymmetric_key()
netlabel: shorter names for the NetLabel catmap funcs/structs
netlabel: fix the catmap walking functions
netlabel: fix the horribly broken catmap functions
netlabel: fix a problem when setting bits below the previously lowest bit
PKCS#7: X.509 certificate issuer and subject are mandatory fields in the ASN.1
tpm: simplify code by using %*phN specifier
tpm: Provide a generic means to override the chip returned timeouts
tpm: missing tpm_chip_put in tpm_get_random()
tpm: Properly clean sysfs entries in error path
tpm: Add missing tpm_do_selftest to ST33 I2C driver
PKCS#7: Use x509_request_asymmetric_key()
Revert "selinux: fix the default socket labeling in sock_graft()"
X.509: x509_request_asymmetric_keys() doesn't need string length arguments
PKCS#7: fix sparse non static symbol warning
KEYS: revert encrypted key change
ima: add support for measuring and appraising firmware
firmware_class: perform new LSM checks
security: introduce kernel_fw_from_file hook
PKCS#7: Missing inclusion of linux/err.h
...
Use sigsp() instead of the open coded variant.
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Chris Metcalf <cmetcalf@tilera.com>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Acked-by: Lennox Wu <lennox.wu@gmail.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
This inverts also the return codes of setup_*frame() to follow the
kernel convention.
Signed-off-by: Richard Weinberger <richard@nod.at>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Helge Deller <deller@gmx.de>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
This inverts also the return codes of force_sigsegv_info()
and setup_frame() to follow the kernel convention.
Signed-off-by: Richard Weinberger <richard@nod.at>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Acked-by: Richard Kuo <rkuo@codeaurora.org>
Signed-off-by: Richard Weinberger <richard@nod.at>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Tested-by: Mark Salter <msalter@redhat.com>
Acked-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Richard Weinberger <richard@nod.at>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Steven Miao <realmz6@gmail.com>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Use the more generic functions get_signal() signal_setup_done()
for signal delivery.
Signed-off-by: Richard Weinberger <richard@nod.at>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
commit 4badad352a (locking/mutex: Disable
optimistic spinning on some architectures) fenced spinning for
architectures without proper cmpxchg.
There is no need to disable mutex spinning on s390, though:
The instructions CS,CSG and friends provide the proper guarantees.
(We dont implement cmpxchg with locks).
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Pull timer and time updates from Thomas Gleixner:
"A rather large update of timers, timekeeping & co
- Core timekeeping code is year-2038 safe now for 32bit machines.
Now we just need to fix all in kernel users and the gazillion of
user space interfaces which rely on timespec/timeval :)
- Better cache layout for the timekeeping internal data structures.
- Proper nanosecond based interfaces for in kernel users.
- Tree wide cleanup of code which wants nanoseconds but does hoops
and loops to convert back and forth from timespecs. Some of it
definitely belongs into the ugly code museum.
- Consolidation of the timekeeping interface zoo.
- A fast NMI safe accessor to clock monotonic for tracing. This is a
long standing request to support correlated user/kernel space
traces. With proper NTP frequency correction it's also suitable
for correlation of traces accross separate machines.
- Checkpoint/restart support for timerfd.
- A few NOHZ[_FULL] improvements in the [hr]timer code.
- Code move from kernel to kernel/time of all time* related code.
- New clocksource/event drivers from the ARM universe. I'm really
impressed that despite an architected timer in the newer chips SoC
manufacturers insist on inventing new and differently broken SoC
specific timers.
[ Ed. "Impressed"? I don't think that word means what you think it means ]
- Another round of code move from arch to drivers. Looks like most
of the legacy mess in ARM regarding timers is sorted out except for
a few obnoxious strongholds.
- The usual updates and fixlets all over the place"
* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (114 commits)
timekeeping: Fixup typo in update_vsyscall_old definition
clocksource: document some basic timekeeping concepts
timekeeping: Use cached ntp_tick_length when accumulating error
timekeeping: Rework frequency adjustments to work better w/ nohz
timekeeping: Minor fixup for timespec64->timespec assignment
ftrace: Provide trace clocks monotonic
timekeeping: Provide fast and NMI safe access to CLOCK_MONOTONIC
seqcount: Add raw_write_seqcount_latch()
seqcount: Provide raw_read_seqcount()
timekeeping: Use tk_read_base as argument for timekeeping_get_ns()
timekeeping: Create struct tk_read_base and use it in struct timekeeper
timekeeping: Restructure the timekeeper some more
clocksource: Get rid of cycle_last
clocksource: Move cycle_last validation to core code
clocksource: Make delta calculation a function
wireless: ath9k: Get rid of timespec conversions
drm: vmwgfx: Use nsec based interfaces
drm: i915: Use nsec based interfaces
timekeeping: Provide ktime_get_raw()
hangcheck-timer: Use ktime_get_ns()
...
Pull irq updates from Thomas Gleixner:
"Nothing spectacular from the irq department this time:
- overhaul of the crossbar chip driver
- overhaul of the spear shirq chip driver
- support for the atmel-aic chip
- code move from arch to drivers
- the usual tiny fixlets
- two reverts worth to mention which undo the too simple attempt of
supporting wakeup interrupts on shared interrupt lines"
* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
Revert "irq: Warn when shared interrupts do not match on NO_SUSPEND"
Revert "PM / sleep / irq: Do not suspend wakeup interrupts"
irq: Warn when shared interrupts do not match on NO_SUSPEND
irqchip: atmel-aic: Define irq fixups for atmel SoCs
irqchip: atmel-aic: Implement RTC irq fixup
irqchip: atmel-aic: Add irq fixup infrastructure
irqchip: atmel-aic: Add atmel AIC/AIC5 drivers
irqchip: atmel-aic: Move binding doc to interrupt-controller directory
genirq: generic chip: Export irq_map_generic_chip function
PM / sleep / irq: Do not suspend wakeup interrupts
irqchip: or1k-pic: Migrate from arch/openrisc/
irqchip: crossbar: Allow for quirky hardware with direct hardwiring of GIC
documentation: dt: omap: crossbar: Add description for interrupt consumer
irqchip: crossbar: Introduce centralized check for crossbar write
irqchip: crossbar: Introduce ti, max-crossbar-sources to identify valid crossbar mapping
irqchip: crossbar: Add kerneldoc for crossbar_domain_unmap callback
irqchip: crossbar: Set cb pointer to null in case of error
irqchip: crossbar: Change the goto naming
irqchip: crossbar: Return proper error value
irqchip: crossbar: Fix kerneldoc warning
...
Commit ea431643d6 ("x86/mce: Fix CMCI preemption bugs") breaks RT by
the completely unrelated conversion of the cmci_discover_lock to a
regular (non raw) spinlock. This lock was annotated in commit
59d958d2c7 ("locking, x86: mce: Annotate cmci_discover_lock as raw")
with a proper explanation why.
The argument for converting the lock back to a regular spinlock was:
- it does percpu ops without disabling preemption. Preemption is not
disabled due to the mistaken use of a raw spinlock.
Which is complete nonsense. The raw_spinlock is disabling preemption in
the same way as a regular spinlock. In mainline spinlock maps to
raw_spinlock, in RT spinlock becomes a "sleeping" lock.
raw_spinlock has on RT exactly the same semantics as in mainline. And
because this lock is taken in non preemptible context it must be raw on
RT.
Undo the locking brainfart.
Reported-by: Clark Williams <williams@redhat.com>
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
A quiet release, more bug fixes than anything else. A few things do
stand out though:
- Updates to several drivers to move towards the standard GPIO chip
select handling in the core.
- DMA support for the SH MSIOF driver.
- Support for Rockchip SPI controllers (their first mainline
submission).
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQIcBAABAgAGBQJT4RsmAAoJELSic+t+oim9Kd0P/A3bTbf7UiK9t3NgbpIDO+yJ
JHe8O5OtxeAWGiuv9RF47Gutr8061Rww0yzX2+iiRBkaOYE7TZfdUVSBT8LnTrw6
WFye5pmxy25mDX97OJnhlsddPEoCxb/a4MlcqcCxULsHcyU9jIM+uId1v6LxMC3d
QtuB2Fuxzhhqmdfg9NLdsVsMWiwVwZn20Cmxt7Fc9EzwK6BBs1U50/X/wJHzBQ4K
fbl3hwxKODBd7aMG9DRHt4cW04WG5wQYkJS54ThUAROebqjEx8YWbNIszKA1fQcW
jBcd8Oieo724/jGZq1/U4RJUpRKmwx/ug31nrYx/Mcp+Za+yIZ1dwxAcK5AkdJNa
1lw5LGMLcP04EN0pdKKyrVwwkzV60fwrV9ELcZcnbpKhcvR0G4g7pbKufNIcGu64
0RGTnq1Y0HD1/0Zcomdt1oSSA4gv1B2Va7ZBM/SaphA+MW6EN0KfGMmcopJA5gAD
Dv66ijnIUjkKqJb4HsWa4gcq6EnqiK/GUzr9Pjng4ogl8/OF+OYOa+mYnj4DP98p
aXy/IUKSNDRwY6tV6Z4eEXnhsHWmkzfqYwZoEZVZIR7Dytl1oxdK4kW5BC0hJRc1
DrgnVMgxsIMfVD3RVbqLN4zPyFBmKHwXrcTMHQuv4ndfhiDck0u4uiF5CNCap1I1
ThAHObRbw+X/9D0ywFK/
=u37g
-----END PGP SIGNATURE-----
Merge tag 'spi-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi updates from Mark Brown:
"A quiet release, more bug fixes than anything else. A few things do
stand out though:
- updates to several drivers to move towards the standard GPIO chip
select handling in the core.
- DMA support for the SH MSIOF driver.
- support for Rockchip SPI controllers (their first mainline
submission)"
* tag 'spi-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi: (64 commits)
spi: davinci: use spi_device.cs_gpio to store gpio cs per spi device
spi: davinci: add support to configure gpio cs through dt
spi/pl022: Explicitly truncate large bitmask
spi/atmel: Fix pointer to int conversion warnings on 64 bit builds
spi: davinci: fix to support more than 2 chip selects
spi: topcliff-pch: don't hardcode PCI slot to get DMA device
spi: orion: fix incorrect handling of cell-index DT property
spi: orion: Fix error return code in orion_spi_probe()
spi/rockchip: fix error return code in rockchip_spi_probe()
spi/rockchip: remove redundant dev_err call in rockchip_spi_probe()
spi/rockchip: remove duplicated include from spi-rockchip.c
ARM: dts: fix the chip select gpios definition in the SPI nodes
spi: s3c64xx: Update binding documentation
spi: s3c64xx: use the generic SPI "cs-gpios" property
spi: s3c64xx: Revert "spi: s3c64xx: Added provision for dedicated cs pin"
spi: atmel: Use dmaengine_prep_slave_sg() API
spi: topcliff-pch: Update error messages for dmaengine_prep_slave_sg() API
spi: sh-msiof: Use correct device for DMA mapping with IOMMU
spi: sh-msiof: Handle dmaengine_prep_slave_single() failures gracefully
spi: rspi: Handle dmaengine_prep_slave_sg() failures gracefully
...
This time with:
* Support for the generic PCI device alias code in x86 IOMMU
drivers
* A new sysfs interface for IOMMUs
* Preparations for hotplug support in the Intel IOMMU driver
* Change the AMD IOMMUv2 driver to not hold references to core
data structures like mm_struct or task_struct. Rely on
mmu_notifers instead.
* Removal of the OMAP IOVMM interface, all users of it are
converted to DMA-API now
* Make the struct iommu_ops const everywhere
* Initial PCI support for the ARM SMMU driver
* There is now a generic device tree binding documented for
ARM IOMMUs
* Various fixes and cleanups all over the place
Also included are some changes to the OMAP code, which are acked by the
maintainer.
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.22 (GNU/Linux)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=ChW/
-----END PGP SIGNATURE-----
Merge tag 'iommu-updates-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu
Pull iommu updates from Joerg Roedel:
"This time with:
- support for the generic PCI device alias code in x86 IOMMU drivers
- a new sysfs interface for IOMMUs
- preparations for hotplug support in the Intel IOMMU driver
- change the AMD IOMMUv2 driver to not hold references to core data
structures like mm_struct or task_struct. Rely on mmu_notifers
instead.
- removal of the OMAP IOVMM interface, all users of it are converted
to DMA-API now
- make the struct iommu_ops const everywhere
- initial PCI support for the ARM SMMU driver
- there is now a generic device tree binding documented for ARM
IOMMUs
- various fixes and cleanups all over the place
Also included are some changes to the OMAP code, which are acked by
the maintainer"
* tag 'iommu-updates-v3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (67 commits)
devicetree: Add generic IOMMU device tree bindings
iommu/vt-d: Fix race setting IRQ CPU affinity while freeing IRQ
iommu/amd: Fix 2 typos in comments
iommu/amd: Fix device_state reference counting
iommu/amd: Remove change_pte mmu_notifier call-back
iommu/amd: Don't set pasid_state->mm to NULL in unbind_pasid
iommu/exynos: Select ARM_DMA_USE_IOMMU
iommu/vt-d: Exclude devices using RMRRs from IOMMU API domains
iommu/omap: Remove platform data da_start and da_end fields
ARM: omap: Don't set iommu pdata da_start and da_end fields
iommu/omap: Remove virtual memory manager
iommu/vt-d: Fix issue in computing domain's iommu_snooping flag
iommu/vt-d: Introduce helper function iova_size() to improve code readability
iommu/vt-d: Introduce helper domain_pfn_within_range() to simplify code
iommu/vt-d: Simplify intel_unmap_sg() and kill duplicated code
iommu/vt-d: Change iommu_enable/disable_translation to return void
iommu/vt-d: Simplify include/linux/dmar.h
iommu/vt-d: Avoid freeing virtual machine domain in free_dmar_iommu()
iommu/vt-d: Fix possible invalid memory access caused by free_dmar_iommu()
iommu/vt-d: Allocate dynamic domain id for virtual domains only
...
Without CONFIG_RELOCATABLE the early boot code will decompress the
kernel to LOAD_PHYSICAL_ADDR. While this may have been fine in the BIOS
days, that isn't going to fly with UEFI since parts of the firmware
code/data may be located at LOAD_PHYSICAL_ADDR.
Straying outside of the bounds of the regions we've explicitly requested
from the firmware will cause all sorts of trouble. Bruno reports that
his machine resets while trying to decompress the kernel image.
We already go to great pains to ensure the kernel is loaded into a
suitably aligned buffer, it's just that the address isn't necessarily
LOAD_PHYSICAL_ADDR, because we can't guarantee that address isn't in-use
by the firmware.
Explicitly enforce CONFIG_RELOCATABLE for the EFI boot stub, so that we
can load the kernel at any address with the correct alignment.
Reported-by: Bruno Prémont <bonbons@linux-vserver.org>
Tested-by: Bruno Prémont <bonbons@linux-vserver.org>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Matt Fleming <matt.fleming@intel.com>
The getrandom(2) system call was requested by the LibreSSL Portable
developers. It is analoguous to the getentropy(2) system call in
OpenBSD.
The rationale of this system call is to provide resiliance against
file descriptor exhaustion attacks, where the attacker consumes all
available file descriptors, forcing the use of the fallback code where
/dev/[u]random is not available. Since the fallback code is often not
well-tested, it is better to eliminate this potential failure mode
entirely.
The other feature provided by this new system call is the ability to
request randomness from the /dev/urandom entropy pool, but to block
until at least 128 bits of entropy has been accumulated in the
/dev/urandom entropy pool. Historically, the emphasis in the
/dev/urandom development has been to ensure that urandom pool is
initialized as quickly as possible after system boot, and preferably
before the init scripts start execution.
This is because changing /dev/urandom reads to block represents an
interface change that could potentially break userspace which is not
acceptable. In practice, on most x86 desktop and server systems, in
general the entropy pool can be initialized before it is needed (and
in modern kernels, we will printk a warning message if not). However,
on an embedded system, this may not be the case. And so with this new
interface, we can provide the functionality of blocking until the
urandom pool has been initialized. Any userspace program which uses
this new functionality must take care to assure that if it is used
during the boot process, that it will not cause the init scripts or
other portions of the system startup to hang indefinitely.
SYNOPSIS
#include <linux/random.h>
int getrandom(void *buf, size_t buflen, unsigned int flags);
DESCRIPTION
The system call getrandom() fills the buffer pointed to by buf
with up to buflen random bytes which can be used to seed user
space random number generators (i.e., DRBG's) or for other
cryptographic uses. It should not be used for Monte Carlo
simulations or other programs/algorithms which are doing
probabilistic sampling.
If the GRND_RANDOM flags bit is set, then draw from the
/dev/random pool instead of the /dev/urandom pool. The
/dev/random pool is limited based on the entropy that can be
obtained from environmental noise, so if there is insufficient
entropy, the requested number of bytes may not be returned.
If there is no entropy available at all, getrandom(2) will
either block, or return an error with errno set to EAGAIN if
the GRND_NONBLOCK bit is set in flags.
If the GRND_RANDOM bit is not set, then the /dev/urandom pool
will be used. Unlike using read(2) to fetch data from
/dev/urandom, if the urandom pool has not been sufficiently
initialized, getrandom(2) will block (or return -1 with the
errno set to EAGAIN if the GRND_NONBLOCK bit is set in flags).
The getentropy(2) system call in OpenBSD can be emulated using
the following function:
int getentropy(void *buf, size_t buflen)
{
int ret;
if (buflen > 256)
goto failure;
ret = getrandom(buf, buflen, 0);
if (ret < 0)
return ret;
if (ret == buflen)
return 0;
failure:
errno = EIO;
return -1;
}
RETURN VALUE
On success, the number of bytes that was filled in the buf is
returned. This may not be all the bytes requested by the
caller via buflen if insufficient entropy was present in the
/dev/random pool, or if the system call was interrupted by a
signal.
On error, -1 is returned, and errno is set appropriately.
ERRORS
EINVAL An invalid flag was passed to getrandom(2)
EFAULT buf is outside the accessible address space.
EAGAIN The requested entropy was not available, and
getentropy(2) would have blocked if the
GRND_NONBLOCK flag was not set.
EINTR While blocked waiting for entropy, the call was
interrupted by a signal handler; see the description
of how interrupted read(2) calls on "slow" devices
are handled with and without the SA_RESTART flag
in the signal(7) man page.
NOTES
For small requests (buflen <= 256) getrandom(2) will not
return EINTR when reading from the urandom pool once the
entropy pool has been initialized, and it will return all of
the bytes that have been requested. This is the recommended
way to use getrandom(2), and is designed for compatibility
with OpenBSD's getentropy() system call.
However, if you are using GRND_RANDOM, then getrandom(2) may
block until the entropy accounting determines that sufficient
environmental noise has been gathered such that getrandom(2)
will be operating as a NRBG instead of a DRBG for those people
who are working in the NIST SP 800-90 regime. Since it may
block for a long time, these guarantees do *not* apply. The
user may want to interrupt a hanging process using a signal,
so blocking until all of the requested bytes are returned
would be unfriendly.
For this reason, the user of getrandom(2) MUST always check
the return value, in case it returns some error, or if fewer
bytes than requested was returned. In the case of
!GRND_RANDOM and small request, the latter should never
happen, but the careful userspace code (and all crypto code
should be careful) should check for this anyway!
Finally, unless you are doing long-term key generation (and
perhaps not even then), you probably shouldn't be using
GRND_RANDOM. The cryptographic algorithms used for
/dev/urandom are quite conservative, and so should be
sufficient for all purposes. The disadvantage of GRND_RANDOM
is that it can block, and the increased complexity required to
deal with partially fulfilled getrandom(2) requests.
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Reviewed-by: Zach Brown <zab@zabbo.net>
Pull ARM updates from Russell King:
"Included in this update:
- perf updates from Will Deacon:
The main changes are callchain stability fixes from Jean Pihet and
event mapping and PMU name rework from Mark Rutland
The latter is preparatory work for enabling some code re-use with
arm64 in the future.
- updates for nommu from Uwe Kleine-König:
Two different fixes for the same problem making some ARM nommu
configurations not boot since 3.6-rc1. The problem is that
user_addr_max returned the biggest available RAM address which
makes some copy_from_user variants fail to read from XIP memory.
- deprecate legacy OMAP DMA API, in preparation for it's removal.
The popular drivers have been converted over, leaving a very small
number of rarely used drivers, which hopefully can be converted
during the next cycle with a bit more visibility (and hopefully
people popping out of the woodwork to help test)
- more tweaks for BE systems, particularly with the kernel image
format. In connection with this, I've cleaned up the way we
generate the linker script for the decompressor.
- removal of hard-coded assumptions of the kernel stack size, making
everywhere depend on the value of THREAD_SIZE_ORDER.
- MCPM updates from Nicolas Pitre.
- Make it easier for proper CPU part number checks (which should
always include the vendor field).
- Assembly code optimisation - use the "bx" instruction when
returning from a function on ARMv6+ rather than "mov pc, reg".
- Save the last kernel misaligned fault location and report it via
the procfs alignment file.
- Clean up the way we create the initial stack frame, which is a
repeated pattern in several different locations.
- Support for 8-byte get_user(), needed for some DRM implementations.
- mcs locking from Will Deacon.
- Save and restore a few more Cortex-A9 registers (for errata
workarounds)
- Fix various aspects of the SWP emulation, and the ELF hwcap for the
SWP instruction.
- Update LPAE logic for pte_write and pmd_write to make it more
correct.
- Support for Broadcom Brahma15 CPU cores.
- ARM assembly crypto updates from Ard Biesheuvel"
* 'for-linus' of git://ftp.arm.linux.org.uk/~rmk/linux-arm: (53 commits)
ARM: add comments to the early page table remap code
ARM: 8122/1: smp_scu: enable SCU standby support
ARM: 8121/1: smp_scu: use macro for SCU enable bit
ARM: 8120/1: crypto: sha512: add ARM NEON implementation
ARM: 8119/1: crypto: sha1: add ARM NEON implementation
ARM: 8118/1: crypto: sha1/make use of common SHA-1 structures
ARM: 8113/1: remove remaining definitions of PLAT_PHYS_OFFSET from <mach/memory.h>
ARM: 8111/1: Enable erratum 798181 for Broadcom Brahma-B15
ARM: 8110/1: do CPU-specific init for Broadcom Brahma15 cores
ARM: 8109/1: mm: Modify pte_write and pmd_write logic for LPAE
ARM: 8108/1: mm: Introduce {pte,pmd}_isset and {pte,pmd}_isclear
ARM: hwcap: disable HWCAP_SWP if the CPU advertises it has exclusives
ARM: SWP emulation: only initialise on ARMv7 CPUs
ARM: SWP emulation: always enable when SMP is enabled
ARM: 8103/1: save/restore Cortex-A9 CP15 registers on suspend/resume
ARM: 8098/1: mcs lock: implement wfe-based polling for MCS locking
ARM: 8091/2: add get_user() support for 8 byte types
ARM: 8097/1: unistd.h: relocate comments back to place
ARM: 8096/1: Describe required sort order for textofs-y (TEXT_OFFSET)
ARM: 8090/1: add revision info for PL310 errata 588369 and 727915
...
Pull m68knommu fixes from Greg Ungerer:
"Just a couple of small fixes. Fix definition of page_to_phys() and
remove unecesary prototype of kobjsize()"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: Remove unnecessary prototype for kobjsize()
m68knommu: Correct page_to_phys when PAGE_OFFSET is non-zero.
After commit 77b0f5d (KVM: nVMX: Ack and write vector info to intr_info
if L1 asks us to), "Acknowledge interrupt on exit" behavior can be
emulated. To do so, KVM will ask the APIC for the interrupt vector if
during a nested vmexit if VM_EXIT_ACK_INTR_ON_EXIT is set. With APICv,
kvm_get_apic_interrupt would return -1 and give the following WARNING:
Call Trace:
[<ffffffff81493563>] dump_stack+0x49/0x5e
[<ffffffff8103f0eb>] warn_slowpath_common+0x7c/0x96
[<ffffffffa059709a>] ? nested_vmx_vmexit+0xa4/0x233 [kvm_intel]
[<ffffffff8103f11a>] warn_slowpath_null+0x15/0x17
[<ffffffffa059709a>] nested_vmx_vmexit+0xa4/0x233 [kvm_intel]
[<ffffffffa0594295>] ? nested_vmx_exit_handled+0x6a/0x39e [kvm_intel]
[<ffffffffa0537931>] ? kvm_apic_has_interrupt+0x80/0xd5 [kvm]
[<ffffffffa05972ec>] vmx_check_nested_events+0xc3/0xd3 [kvm_intel]
[<ffffffffa051ebe9>] inject_pending_event+0xd0/0x16e [kvm]
[<ffffffffa051efa0>] vcpu_enter_guest+0x319/0x704 [kvm]
To fix this, we cannot rely on the processor's virtual interrupt delivery,
because "acknowledge interrupt on exit" must only update the virtual
ISR/PPR/IRR registers (and SVI, which is just a cache of the virtual ISR)
but it should not deliver the interrupt through the IDT. Thus, KVM has
to deliver the interrupt "by hand", similar to the treatment of EOI in
commit fc57ac2c9c (KVM: lapic: sync highest ISR to hardware apic on
EOI, 2014-05-14).
The patch modifies kvm_cpu_get_interrupt to always acknowledge an
interrupt; there are only two callers, and the other is not affected
because it is never reached with kvm_apic_vid_enabled() == true. Then it
modifies apic_set_isr and apic_clear_irr to update SVI and RVI in addition
to the registers.
Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Suggested-by: "Zhang, Yang Z" <yang.z.zhang@intel.com>
Tested-by: Liu, RongrongX <rongrongx.liu@intel.com>
Tested-by: Felipe Reyes <freyes@suse.com>
Fixes: 77b0f5d67f
Cc: stable@vger.kernel.org
Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
An external interrupt will cause a vmexit with reason "external interrupt"
when L2 is running. L1 will pick up the interrupt through vmcs12 if
L1 set the ack interrupt bit. Commit 77b0f5d (KVM: nVMX: Ack and write
vector info to intr_info if L1 asks us to) retrieves the interrupt that
belongs to L1 before vmcs01 is loaded.
This will lead to problems in the next patch, which would write to SVI
of vmcs02 instead of vmcs01 (SVI of vmcs02 doesn't make sense because
L2 runs without APICv).
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Tested-by: Liu, RongrongX <rongrongx.liu@intel.com>
Tested-by: Felipe Reyes <freyes@suse.com>
Fixes: 77b0f5d67f
Cc: stable@vger.kernel.org
Signed-off-by: Wanpeng Li <wanpeng.li@linux.intel.com>
[Move tracepoint as well. - Paolo]
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This makes it possible to use IRQFDs on platforms that use the XICS
interrupt controller. To do this we implement kvm_irq_map_gsi() and
kvm_irq_map_chip_pin() in book3s_xics.c, so as to provide a 1-1 mapping
between global interrupt numbers and XICS interrupt source numbers.
For now, all interrupts are mapped as "IRQCHIP" interrupts, and no
MSI support is provided.
This means that kvm_set_irq can now get called with level == 0 or 1
as well as the powerpc-specific values KVM_INTERRUPT_SET,
KVM_INTERRUPT_UNSET and KVM_INTERRUPT_SET_LEVEL. We change
ics_deliver_irq() to accept all those values, and remove its
report_status argument, as it is always false, given that we don't
support KVM_IRQ_LINE_STATUS.
This also adds support for interrupt ack notifiers to the XICS code
so that the IRQFD resampler functionality can be supported.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tested-by: Eric Auger <eric.auger@linaro.org>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Currently, the IRQFD code is conditional on CONFIG_HAVE_KVM_IRQ_ROUTING.
So that we can have the IRQFD code compiled in without having the
IRQ routing code, this creates a new CONFIG_HAVE_KVM_IRQFD, makes
the IRQFD code conditional on it instead of CONFIG_HAVE_KVM_IRQ_ROUTING,
and makes all the platforms that currently select HAVE_KVM_IRQ_ROUTING
also select HAVE_KVM_IRQFD.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tested-by: Eric Auger <eric.auger@linaro.org>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This provides accessor functions for the KVM interrupt mappings, in
order to reduce the amount of code that accesses the fields of the
kvm_irq_routing_table struct, and restrict that code to one file,
virt/kvm/irqchip.c. The new functions are kvm_irq_map_gsi(), which
maps from a global interrupt number to a set of IRQ routing entries,
and kvm_irq_map_chip_pin, which maps from IRQ chip and pin numbers to
a global interrupt number.
This also moves the update of kvm_irq_routing_table::chip[][]
into irqchip.c, out of the various kvm_set_routing_entry
implementations. That means that none of the kvm_set_routing_entry
implementations need the kvm_irq_routing_table argument anymore,
so this removes it.
This does not change any locking or data lifetime rules.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Tested-by: Eric Auger <eric.auger@linaro.org>
Tested-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Commit 29577fc00b ("KVM: PPC: HV: Remove generic instruction emulation")
caused a build failure with allyesconfig:
arch/powerpc/kvm/kvm-pr.o:(__tracepoints+0xa8): multiple definition of `__tracepoint_kvm_ppc_instr'
arch/powerpc/kvm/kvm.o:(__tracepoints+0x1c0): first defined here
due to a duplicate definition of the tracepoint in trace.h and
trace_pr.h. Because the tracepoint is still used by Book3S HV
code, and because the PR code does include trace.h, just remove
the duplicate definition from trace_pr.h, and export it from
kvm.o.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Some new functions are exposed for use by the IOMMU code but
won't build when CONFIG_IOMMU_API isn't set, so shield them
appropriately.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Highlights in this release include:
- BookE: Rework instruction fetch, not racy anymore now
- BookE HV: Fix ONE_REG accessors for some in-hardware registers
- Book3S: Good number of LE host fixes, enable HV on LE
- Book3S: Some misc bug fixes
- Book3S HV: Add in-guest debug support
- Book3S HV: Preload cache lines on context switch
- Remove 440 support
Alexander Graf (31):
KVM: PPC: Book3s PR: Disable AIL mode with OPAL
KVM: PPC: Book3s HV: Fix tlbie compile error
KVM: PPC: Book3S PR: Handle hyp doorbell exits
KVM: PPC: Book3S PR: Fix ABIv2 on LE
KVM: PPC: Book3S PR: Fix sparse endian checks
PPC: Add asm helpers for BE 32bit load/store
KVM: PPC: Book3S HV: Make HTAB code LE host aware
KVM: PPC: Book3S HV: Access guest VPA in BE
KVM: PPC: Book3S HV: Access host lppaca and shadow slb in BE
KVM: PPC: Book3S HV: Access XICS in BE
KVM: PPC: Book3S HV: Fix ABIv2 on LE
KVM: PPC: Book3S HV: Enable for little endian hosts
KVM: PPC: Book3S: Move vcore definition to end of kvm_arch struct
KVM: PPC: Deflect page write faults properly in kvmppc_st
KVM: PPC: Book3S: Stop PTE lookup on write errors
KVM: PPC: Book3S: Add hack for split real mode
KVM: PPC: Book3S: Make magic page properly 4k mappable
KVM: PPC: Remove 440 support
KVM: Rename and add argument to check_extension
KVM: Allow KVM_CHECK_EXTENSION on the vm fd
KVM: PPC: Book3S: Provide different CAPs based on HV or PR mode
KVM: PPC: Implement kvmppc_xlate for all targets
KVM: PPC: Move kvmppc_ld/st to common code
KVM: PPC: Remove kvmppc_bad_hva()
KVM: PPC: Use kvm_read_guest in kvmppc_ld
KVM: PPC: Handle magic page in kvmppc_ld/st
KVM: PPC: Separate loadstore emulation from priv emulation
KVM: PPC: Expose helper functions for data/inst faults
KVM: PPC: Remove DCR handling
KVM: PPC: HV: Remove generic instruction emulation
KVM: PPC: PR: Handle FSCR feature deselects
Alexey Kardashevskiy (1):
KVM: PPC: Book3S: Fix LPCR one_reg interface
Aneesh Kumar K.V (4):
KVM: PPC: BOOK3S: PR: Fix PURR and SPURR emulation
KVM: PPC: BOOK3S: PR: Emulate virtual timebase register
KVM: PPC: BOOK3S: PR: Emulate instruction counter
KVM: PPC: BOOK3S: HV: Update compute_tlbie_rb to handle 16MB base page
Anton Blanchard (2):
KVM: PPC: Book3S HV: Fix ABIv2 indirect branch issue
KVM: PPC: Assembly functions exported to modules need _GLOBAL_TOC()
Bharat Bhushan (10):
kvm: ppc: bookehv: Added wrapper macros for shadow registers
kvm: ppc: booke: Use the shared struct helpers of SRR0 and SRR1
kvm: ppc: booke: Use the shared struct helpers of SPRN_DEAR
kvm: ppc: booke: Add shared struct helpers of SPRN_ESR
kvm: ppc: booke: Use the shared struct helpers for SPRN_SPRG0-7
kvm: ppc: Add SPRN_EPR get helper function
kvm: ppc: bookehv: Save restore SPRN_SPRG9 on guest entry exit
KVM: PPC: Booke-hv: Add one reg interface for SPRG9
KVM: PPC: Remove comment saying SPRG1 is used for vcpu pointer
KVM: PPC: BOOKEHV: rename e500hv_spr to bookehv_spr
Michael Neuling (1):
KVM: PPC: Book3S HV: Add H_SET_MODE hcall handling
Mihai Caraman (8):
KVM: PPC: e500mc: Enhance tlb invalidation condition on vcpu schedule
KVM: PPC: e500: Fix default tlb for victim hint
KVM: PPC: e500: Emulate power management control SPR
KVM: PPC: e500mc: Revert "add load inst fixup"
KVM: PPC: Book3e: Add TLBSEL/TSIZE defines for MAS0/1
KVM: PPC: Book3s: Remove kvmppc_read_inst() function
KVM: PPC: Allow kvmppc_get_last_inst() to fail
KVM: PPC: Bookehv: Get vcpu's last instruction for emulation
Paul Mackerras (4):
KVM: PPC: Book3S: Controls for in-kernel sPAPR hypercall handling
KVM: PPC: Book3S: Allow only implemented hcalls to be enabled or disabled
KVM: PPC: Book3S PR: Take SRCU read lock around RTAS kvm_read_guest() call
KVM: PPC: Book3S: Make kvmppc_ld return a more accurate error indication
Stewart Smith (2):
Split out struct kvmppc_vcore creation to separate function
Use the POWER8 Micro Partition Prefetch Engine in KVM HV on POWER8
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v2.0.19 (GNU/Linux)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=JuLr
-----END PGP SIGNATURE-----
Merge tag 'signed-kvm-ppc-next' of git://github.com/agraf/linux-2.6 into kvm
Patch queue for ppc - 2014-08-01
Highlights in this release include:
- BookE: Rework instruction fetch, not racy anymore now
- BookE HV: Fix ONE_REG accessors for some in-hardware registers
- Book3S: Good number of LE host fixes, enable HV on LE
- Book3S: Some misc bug fixes
- Book3S HV: Add in-guest debug support
- Book3S HV: Preload cache lines on context switch
- Remove 440 support
Alexander Graf (31):
KVM: PPC: Book3s PR: Disable AIL mode with OPAL
KVM: PPC: Book3s HV: Fix tlbie compile error
KVM: PPC: Book3S PR: Handle hyp doorbell exits
KVM: PPC: Book3S PR: Fix ABIv2 on LE
KVM: PPC: Book3S PR: Fix sparse endian checks
PPC: Add asm helpers for BE 32bit load/store
KVM: PPC: Book3S HV: Make HTAB code LE host aware
KVM: PPC: Book3S HV: Access guest VPA in BE
KVM: PPC: Book3S HV: Access host lppaca and shadow slb in BE
KVM: PPC: Book3S HV: Access XICS in BE
KVM: PPC: Book3S HV: Fix ABIv2 on LE
KVM: PPC: Book3S HV: Enable for little endian hosts
KVM: PPC: Book3S: Move vcore definition to end of kvm_arch struct
KVM: PPC: Deflect page write faults properly in kvmppc_st
KVM: PPC: Book3S: Stop PTE lookup on write errors
KVM: PPC: Book3S: Add hack for split real mode
KVM: PPC: Book3S: Make magic page properly 4k mappable
KVM: PPC: Remove 440 support
KVM: Rename and add argument to check_extension
KVM: Allow KVM_CHECK_EXTENSION on the vm fd
KVM: PPC: Book3S: Provide different CAPs based on HV or PR mode
KVM: PPC: Implement kvmppc_xlate for all targets
KVM: PPC: Move kvmppc_ld/st to common code
KVM: PPC: Remove kvmppc_bad_hva()
KVM: PPC: Use kvm_read_guest in kvmppc_ld
KVM: PPC: Handle magic page in kvmppc_ld/st
KVM: PPC: Separate loadstore emulation from priv emulation
KVM: PPC: Expose helper functions for data/inst faults
KVM: PPC: Remove DCR handling
KVM: PPC: HV: Remove generic instruction emulation
KVM: PPC: PR: Handle FSCR feature deselects
Alexey Kardashevskiy (1):
KVM: PPC: Book3S: Fix LPCR one_reg interface
Aneesh Kumar K.V (4):
KVM: PPC: BOOK3S: PR: Fix PURR and SPURR emulation
KVM: PPC: BOOK3S: PR: Emulate virtual timebase register
KVM: PPC: BOOK3S: PR: Emulate instruction counter
KVM: PPC: BOOK3S: HV: Update compute_tlbie_rb to handle 16MB base page
Anton Blanchard (2):
KVM: PPC: Book3S HV: Fix ABIv2 indirect branch issue
KVM: PPC: Assembly functions exported to modules need _GLOBAL_TOC()
Bharat Bhushan (10):
kvm: ppc: bookehv: Added wrapper macros for shadow registers
kvm: ppc: booke: Use the shared struct helpers of SRR0 and SRR1
kvm: ppc: booke: Use the shared struct helpers of SPRN_DEAR
kvm: ppc: booke: Add shared struct helpers of SPRN_ESR
kvm: ppc: booke: Use the shared struct helpers for SPRN_SPRG0-7
kvm: ppc: Add SPRN_EPR get helper function
kvm: ppc: bookehv: Save restore SPRN_SPRG9 on guest entry exit
KVM: PPC: Booke-hv: Add one reg interface for SPRG9
KVM: PPC: Remove comment saying SPRG1 is used for vcpu pointer
KVM: PPC: BOOKEHV: rename e500hv_spr to bookehv_spr
Michael Neuling (1):
KVM: PPC: Book3S HV: Add H_SET_MODE hcall handling
Mihai Caraman (8):
KVM: PPC: e500mc: Enhance tlb invalidation condition on vcpu schedule
KVM: PPC: e500: Fix default tlb for victim hint
KVM: PPC: e500: Emulate power management control SPR
KVM: PPC: e500mc: Revert "add load inst fixup"
KVM: PPC: Book3e: Add TLBSEL/TSIZE defines for MAS0/1
KVM: PPC: Book3s: Remove kvmppc_read_inst() function
KVM: PPC: Allow kvmppc_get_last_inst() to fail
KVM: PPC: Bookehv: Get vcpu's last instruction for emulation
Paul Mackerras (4):
KVM: PPC: Book3S: Controls for in-kernel sPAPR hypercall handling
KVM: PPC: Book3S: Allow only implemented hcalls to be enabled or disabled
KVM: PPC: Book3S PR: Take SRCU read lock around RTAS kvm_read_guest() call
KVM: PPC: Book3S: Make kvmppc_ld return a more accurate error indication
Stewart Smith (2):
Split out struct kvmppc_vcore creation to separate function
Use the POWER8 Micro Partition Prefetch Engine in KVM HV on POWER8
Conflicts:
Documentation/virtual/kvm/api.txt
- Fixes and code refactoring for stage2 kvm MMU unmap_range
- Support unmapping IPAs on deleting memslots for arm and arm64
- Support MMIO mappings in stage2 faults
- KVM VGIC v2 emulation on GICv3 hardware
- Big-Endian support for arm/arm64 (guest and host)
- Debug Architecture support for arm64 (arm32 is on Christoffer's todo list)
- Detect non page-aligned GICV regions and bail out (plugs guest-can-crash host bug)
-----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
iQEcBAABAgAGBQJT3oZTAAoJEEtpOizt6ddyKQIH/1Bj/cZYSkkSf3IJfQhHRbWN
jS37IBsvcHwjHkRJxCNmQuKP/Ho5XEusluPGrVY25PAgBMl+ouPqAuKzUk+GEab6
snjJjDFqw0zs0x0h3tg6UwfZdF+eyyIkmFGn8/IATD5P3PPd8kWBVtYnSnZmYK+R
KJNVcp6RPDrt9kvUDY8Ln9fW99Jl+7CdgQAnc3QkHcXUlanLyrfq+fE1lSzyrbhZ
ETzyMFAX4kCdc8tflgyyBS4A7+RvfQ6ZIQummxoAMFHIoSk90dtK7ovX68rd9U3e
yL+mpe130+dTIFpUMbxCnIdE7C0eud3vcgXC6MuWtFjUrxQoaEgsVE+ffGC5tX0=
=axkp
-----END PGP SIGNATURE-----
Merge tag 'kvm-arm-for-3.17' of git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into kvm
KVM/ARM New features for 3.17 include:
- Fixes and code refactoring for stage2 kvm MMU unmap_range
- Support unmapping IPAs on deleting memslots for arm and arm64
- Support MMIO mappings in stage2 faults
- KVM VGIC v2 emulation on GICv3 hardware
- Big-Endian support for arm/arm64 (guest and host)
- Debug Architecture support for arm64 (arm32 is on Christoffer's todo list)
Conflicts:
virt/kvm/arm/vgic.c [last minute cherry-pick from 3.17 to 3.16]
Some people see things like "Exception: 501" in stack traces in dmesg
and assume that means that something has gone badly wrong, when in
fact "Exception: 501" just means a device interrupt was taken.
This changes "Exception" to "interrupt" to make it clearer that we
are just recording the fact of a change in control flow rather than
some error condition.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
vmemmap_populated() checks whether the [start, start + page_size) has valid
pfn numbers, to know whether a vmemmap mapping has been created that includes
this range.
Some range before end might not be checked by this loop:
sec11start......start11..sec11end/sec12start..end....start12..sec12end
as the above, for start11(section 11), it checks [sec11start, sec11end), and
loop ends as the next start(start12) is bigger than end. However,
[sec11end/sec12start, end) is not checked here.
So before the loop, adjust the start to be the start of the section, so we don't miss ranges like the above.
After we adjust start to be the start of the section, it also means it's
aligned with vmemmap as of the sizeof struct page, so we could use
page_to_pfn directly in the loop.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
vmemmap_free() does the opposite of vmemap_populate().
This patch also puts vmemmap_free() and vmemmap_list_free() into
CONFIG_MEMMORY_HOTPLUG.
Signed-off-by: Li Zhong <zhong@linux.vnet.ibm.com>
Cc: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Acked-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Linus Torvalds