Since commit dfb4357da6 ("time: Remove CONFIG_TIMER_STATS") we no
longer need to set CONFIG_TIMER_STATS in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit d92d9c3a14 ("drm: hide legacy drivers with CONFIG_DRM_LEGACY")
CONFIG_DRM_RADEON was moved behind CONFIG_DRM_LEGACY meaning it
stopped being enabled by ppc6xx_defconfig. Although no one has
noticed, given this is basically a legacy platform, it seems anyone
who is using it probably still wants this driver. So turn it back on
for now.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit a03fdcb186 ("drm: Add top level Kconfig option for DRM
fbdev emulation") we no longer need to set CONFIG_FB in our
defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit 73d8ef7600 ("Input: mousedev - stop offering PS/2 to
userspace by default") the symbol INPUT_MOUSEDEV went from being
'default y' to 'default n' (implied).
That means we no longer need to explicitly disable it in our
defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit 1d0fd57a50 ("logfs: remove from tree"), logfs was removed
from the tree, so we can drop it from our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit d92d9c3a14 ("drm: hide legacy drivers with
CONFIG_DRM_LEGACY") CONFIG_R128 was moved behind CONFIG_DRM_LEGACY
meaning it stopped being enabled by pmac32_defconfig. Although no one
has noticed, given this is basically a legacy platform, it seems
anyone who is using it probably still wants this driver. So turn it
back on for now.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 300ae14946 ("netfilter: select LIBCRC32C together with
SCTP conntrack") we no longer need to set CONFIG_LIBCRC32C in our
defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 67f6d66559 ("powerpc: convert amigaone_defconfig to use
libata PATA drivers") we no longer need to set CONFIG_SCSI in our
defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit de551f2eb2 ("net: Build IPv6 into kernel by default")
we no longer need to set CONFIG_IPV6 in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit e3c4ff6d8c ("EDAC: Remove EDAC_MM_EDAC") CONFIG_EDAC grew
a dependency on CONFIG_RAS. Some of our defconfigs don't have the
latter, which means we lose CONFIG_EDAC, so add CONFIG_RAS to fix
that.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit cb74ed278f ("audit: always enable syscall auditing when
supported and audit is enabled") we no longer need to set
CONFIG_AUDITSYSCALL in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit bf4981a006 ("powerpc: Remove the celleb support") we
dropped the celleb support, which made these symbols unselectable
because we no longer select HAS_TX99_SERIAL. So drop them from the
defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
xxxx
In commit 577ec789a7 ("powerpc/cell: Drop select of MEMORY_HOTPLUG")
we removed the last traces of any dependency between
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit 43a1dd9b5f ("powerpc/powernv: Add driver for operator
panel on FSP machines") we added CONFIG_POWERNV_OP_PANEL=m to the
powernv defconfig, but it's default m so that's no necessary.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit a311e738b6 ("powerpc/powernv: Make PCI non-optional") we
made PCI (and therefore PCI_MSI) non-optional on powernv, so it
doesn't need to be in the defconfig anymore.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit 40e275653e ("powerpc/powernv: Always enable SMP when
building powernv") and 270e2dc9b8 ("powerpc/pseries: Always enable
SMP when building pseries") we forced CONFIG_SMP on for some configs.
Therefore we don't need to set it in those configs anymore.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit 6b0b755142 ("perf/core: Rename CONFIG_[UK]PROBE_EVENT to
CONFIG_[UK]PROBE_EVENTS") it was renamed to CONFIG_UPROBE_EVENTS.
Additionally it's default y, and we have the prerequisites enabled, so
we don't need it in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit 9654f95a08 ("powerpc: Enable NUMA balancing in
pseries[_le]_defconfig") we added CONFIG_NUMA_BALANCING_DEFAULT_ENABLED
to our defconfigs. But it's already enabled by default, so drop it.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit eedf265aa0 ("devpts: Make each mount of devpts an
independent filesystem.") we no longer need to set
CONFIG_DEVPTS_MULTIPLE_INSTANCES in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 00b9cfa3ff ("mac80111: Add GCMP and GCMP-256 ciphers")
we no longer need to set CONFIG_CRYPTO_GCM in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 3491244c62 ("crypto: echainiv - Set Kconfig default to
m") we no longer need to set CONFIG_CRYPTO_NULL in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 00b9cfa3ff ("mac80111: Add GCMP and GCMP-256 ciphers")
we no longer need to set CONFIG_CRYPTO_NULL in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 826775bbf3 ("crypto: drbg - Add select on sha256") we
no longer need to set CONFIG_CRYPTO_SHA256 in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 12cb3a1c41 ("crypto: xts - Add ECB dependency") we no
longer need to set CONFIG_CRYPTO_ECB in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 401e4238f3 ("crypto: rng - Make DRBG the default RNG")
we no longer need to set CONFIG_CRYPTO_HMAC in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit ccf5c442a1 ("crypto: vmx - Convert to CPU feature based
module autoloading") we no longer need to set
CONFIG_CRYPTO_DEV_VMX_ENCRYPT in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit a85406afeb ("netfilter: conntrack: built-in support for
SCTP"), NF_CT_PROTO_SCTP switched from tristate to bool and became
default y. Similarly in commit 9b91c96c5d ("netfilter: conntrack:
built-in support for UDPlite"), NF_CT_PROTO_UDPLITE switched from
tristate to bool and became default y.
We had a few configs which set them to =m, which is no longer valid.
We don't need to change them to =y because both symbols are default y
and are enabled automatically based on the other symbols in the
affected defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit a5e4bd9913 ("of_mdio: select fixed phy support
unconditionally"), CONFIG_OF_MDIO began selecting CONFIG_FIXED_PHY.
That means we no longer need to set it some of our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit 961518259b ("rcu: Enable RCU tracepoints by default to aid
in debugging"), CONFIG_RCU_TRACE was made default y (if CONFIG_TREE_RCU=y,
which it is for some of our configs).
That in turn causes CONFIG_TREE_RCU_TRACE to be enabled, which selects
CONFIG_DEBUG_FS. The end result is that CONFIG_DEBUG_FS is forced on,
meaning we don't have to enable it in some of our configs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit e334cd69fa ("Move CONFIG_DEVKMEM default to n") we no
longer need to set CONFIG_DEVKMEM in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit f76be61755 ("Make CONFIG_FHANDLE default y") we no
longer need to set CONFIG_FHANDLE in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit 73d8ef7600 ("Input: mousedev - stop offering PS/2 to userspace by
default") (Jan 2017), CONFIG_INPUT_MOUSEDEV was switched from default y to
default n, with the explanation:
Evdev interface has been available for many years and by now everyone
is switched to using it, so let's stop offering /dev/input/mouseN
and /dev/psaux by default.
We had a number of configs which had it enabled, but going by the above
explanation probably don't need it enabled anymore.
So drop the last remnants of it from our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Since commit 401e4238f3 ("crypto: rng - Make DRBG the default RNG") we no longer need to set CONFIG_CRYPTO_ANSI_CPRNG in our defconfigs.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Somehow we missed this when the pr_cont() changes went in. Fix CR/XER
to go on the same line as MSR, as they have historically, eg:
MSR: 8000000000009032 <SF,EE,ME,IR,DR,RI> CR: 4804408a XER: 20000000
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Although the MSR tells you what endian you're in it's possible that
isn't the same endian the kernel was built for, and if that happens
you're usually having a very bad day. So print a marker to make
it 100% clear which endian the kernel was built for.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
When we oops we print a few markers for significant config options
such as PREEMPT, SMP etc. Currently these appear on separate lines
because we're not using pr_cont() properly. Fix it.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
When building a random powerpc kernel I hit this build error:
arch/powerpc/platforms/powernv/opal-imc.c:130:13: error : assignment
discards « const » qualifier from pointer target type
[-Werror=discarded-qualifiers]
l_cpumask = cpumask_of_node(nid);
^
This happens because when CONFIG_NUMA=n cpumask_of_node() returns a
const pointer.
This patch simply adds const to l_cpumask to fix this issue.
Signed-off-by: Corentin Labbe <clabbe.montjoie@gmail.com>
Reviewed-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
[mpe: Flesh out change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Pull Paolo Bonzini:
"Bugfixes for x86, PPC and s390"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: PPC: Book3S: Fix race and leak in kvm_vm_ioctl_create_spapr_tce()
KVM, pkeys: do not use PKRU value in vcpu->arch.guest_fpu.state
KVM: x86: simplify handling of PKRU
KVM: x86: block guest protection keys unless the host has them enabled
KVM: PPC: Book3S HV: Add missing barriers to XIVE code and document them
KVM: PPC: Book3S HV: Workaround POWER9 DD1.0 bug causing IPB bit loss
KVM: PPC: Book3S HV: Use msgsync with hypervisor doorbells on POWER9
KVM: s390: sthyi: fix specification exception detection
KVM: s390: sthyi: fix sthyi inline assembly
Pull powerpc fix from Michael Ellerman:
"Just one fix, to add a barrier in the switch_mm() code to make sure
the mm cpumask update is ordered vs the MMU starting to load
translations. As far as we know no one's actually hit the bug, but
that's just luck.
Thanks to Benjamin Herrenschmidt, Nicholas Piggin"
* tag 'powerpc-4.13-8' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/mm: Ensure cpumask update is ordered
Nixiaoming pointed out that there is a memory leak in
kvm_vm_ioctl_create_spapr_tce() if the call to anon_inode_getfd()
fails; the memory allocated for the kvmppc_spapr_tce_table struct
is not freed, and nor are the pages allocated for the iommu
tables. In addition, we have already incremented the process's
count of locked memory pages, and this doesn't get restored on
error.
David Hildenbrand pointed out that there is a race in that the
function checks early on that there is not already an entry in the
stt->iommu_tables list with the same LIOBN, but an entry with the
same LIOBN could get added between then and when the new entry is
added to the list.
This fixes all three problems. To simplify things, we now call
anon_inode_getfd() before placing the new entry in the list. The
check for an existing entry is done while holding the kvm->lock
mutex, immediately before adding the new entry to the list.
Finally, on failure we now call kvmppc_account_memlimit to
decrement the process's count of locked memory pages.
Reported-by: Nixiaoming <nixiaoming@huawei.com>
Reported-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The hardware trace macro feature requires access to a chunk of real
memory. This patch provides a debugfs interface to do this. By
writing an integer containing the size of memory to be unplugged into
/sys/kernel/debug/powerpc/memtrace/enable, the code will attempt to
remove that much memory from the end of each NUMA node.
This patch also adds additional debugsfs files for each node that
allows the tracer to interact with the removed memory, as well as
a trace file that allows userspace to read the generated trace.
Note that this patch does not invoke the hardware trace macro, it
only allows memory to be removed during runtime for the trace macro
to utilise.
Signed-off-by: Rashmica Gupta <rashmica.g@gmail.com>
[mpe: Minor formatting etc fixups]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This adds missing memory barriers to order updates/tests of
the virtual CPPR and MFRR, thus fixing a lost IPI problem.
While at it also document all barriers in this file.
This fixes a bug causing guest IPIs to occasionally get lost. The
symptom then is hangs or stalls in the guest.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Guilherme G. Piccoli <gpiccoli@linux.vnet.ibm.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
This adds a workaround for a bug in POWER9 DD1 chips where changing
the CPPR (Current Processor Priority Register) can cause bits in the
IPB (Interrupt Pending Buffer) to get lost. Thankfully it only
happens when manually manipulating CPPR which is quite rare. When it
does happen it can cause interrupts to be delayed or lost.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
When msgsnd is used for IPIs to other cores, msgsync must be executed by
the target to order stores performed on the source before its msgsnd
(provided the source executes the appropriate sync).
Fixes: 1704a81cce ("KVM: PPC: Book3S HV: Use msgsnd for IPIs to other cores on POWER9")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
