The ProcessAuxChannel table on some rv635 boards assumes
the divmul members are initialized to 0 otherwise we get
an invalid fb offset since it has a bad mask set when
setting the fb base. While here initialize all the
atom interpretor elements to 0.
Fixes:
https://bugzilla.kernel.org/show_bug.cgi?id=60639
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
The SMC interface changed compared to Cayman and
previous asics. Set the enabled levels properly
and enable reclocking by default when dpm is enabled.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Disable cac setup on SI for now since it causes
strange performance level restrictions on certain
cards. I suspect there may be issues with some of
the 64 bit fixed point double emulation that is used
to set up those parameters. I need to double check
the math before this can be re-enabled.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Coarse grain clockgating causes problems with reclocking on
some cards and powergating (verde only) causes problems with
ring initialization. The proper fix (restructuring the init
sequences) is too invasive for 3.11 so just disable them for
now.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
For correctness. The fb divider isn't actually used
in any of the relevant dpm code. It's calculated
from the other parameters.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Don't try and enable clockgating if the asic doesn't have
UVD. Use rdev->has_uvd rather than using local checks.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Need to set the DISP*_GAP fields as well as the
DISP*_GAP_MCHG fields. Same as on previous asics.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
We need to set the dto source before setting the
dividers otherwise we may get stability problems
with the dto leading to audio playback problems.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Cc: stable@vger.kernel.org
Brown-paper-bag pull request here. The snb rc6 fix from the last pull
broke forcewake BIOS dirt cleanup, which with fixed. But that fix broke
the spinlock init sequence, which results in an ugly BUG when spinlock
debugging is enabled :( So I get to throw another patch at cc: stable to
fix up the mess ...
* tag 'drm-intel-fixes-2013-07-25' of git://people.freedesktop.org/~danvet/drm-intel:
drm/i915: initialize gt_lock early with other spin locks
drm/i915: fix hdmi portclock limits
r600 dpm fixes, old school card dac fixes, lockup fixes
endian fixes
* 'drm-fixes-3.11' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon/dpm: fix r600_enable_sclk_control()
drm/radeon/dpm: implement force performance levels for rv6xx
drm/radeon/dpm: fix displaygap programming on rv6xx
drm/radeon/dpm: fix a typo in the rv6xx mclk setup
drm/radeon: fix combios tables on older cards
drm/radeon: improve dac adjust heuristics for legacy pdac
drm/radeon: Another card with wrong primary dac adj
drm/radeon: fix endian issues with DP handling (v3)
drm/radeon/vm: only align the pt base to 32k
drm/radeon: wait for 3D idle before using CP DMA
Need to use the driver state rather than the register
state since the displays may not be enabled when the
power state is programmed.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
commit 181d1b9e31
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Sun Jul 21 13:16:24 2013 +0200
drm/i915: fix up gt init sequence fallout
moved dev_priv->gt_lock initialization after use. Do the initialization
much earlier with other spin lock initializations.
Reported-by: Sedat Dilek <sedat.dilek@gmail.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Tested-by: Sedat Dilek <sedat.dilek@gmail.com>
Cc: stable@vger.kernel.org (since the regressing patch is also cc: stable)
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pull powerpc fixes from Ben Herrenschmidt:
"Here is a series of powerpc fixes. It's a bit big, mostly because of
the series of 11 "EEH" patches from Gavin. The EEH (Our IBM specific
PCI/PCIe Enhanced Error Handling) code had been rotting for a while
and this merge window saw a significant rework & fixing of it by Gavin
Shan.
However, that wasn't complete and left some open issues. There were
still a few corner cases that didn't work properly, for example in
relation to hotplug and devices without explicit error handlers. We
had some patches but they weren't quite good enough yet so I left them
off the 3.11 merge window.
Gavin since then fixed it all up, we ran quite a few rounds of testing
and it seems fairly solid (at least probably more than it has ever
been). This should probably have made -rc1 but both Gavin and I took
some vacation so it had to wait for -rc2.
The rest is more bug fixes, mostly to new features recently added, for
example, we missed the cpu table entry for one of the two models of P8
(we didn't realize they had different PVR [Processor Version Register]
values), some module CRC issues, etc..."
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (23 commits)
powerpc/perf: BHRB filter configuration should follow the task
powerpc/perf: Ignore separate BHRB privilege state filter request
powerpc/powernv: Mark pnv_pci_init_ioda2_phb() as __init
powerpc/mm: Use the correct SLB(LLP) encoding in tlbie instruction
powerpc/mm: Fix fallthrough bug in hpte_decode
powerpc/pseries: Fix a typo in pSeries_lpar_hpte_insert()
powerpc/eeh: Introdce flag to protect sysfs
powerpc/eeh: Fix unbalanced enable for IRQ
powerpc/eeh: Don't use pci_dev during BAR restore
powerpc/eeh: Use partial hotplug for EEH unaware drivers
powerpc/pci: Partial tree hotplug support
powerpc/eeh: Use safe list traversal when walking EEH devices
powerpc/eeh: Keep PE during hotplug
powerpc/pci/hotplug: Don't need to remove from EEH cache twice
powerpc/pci: Override pcibios_release_device()
powerpc/eeh: Export functions for hotplug
powerpc/eeh: Remove reference to PCI device
powerpc: Fix the corrupt r3 error during MCE handling.
powerpc/perf: Set PPC_FEATURE2_EBB when we register the power8 PMU
powerpc/pseries: Drop "select HOTPLUG"
...
Pull crypto fixes from Herbert Xu:
"This push fixes a memory corruption issue in caam, as well as
reverting the new optimised crct10dif implementation as it breaks boot
on initrd systems.
Hopefully crct10dif will be reinstated once the supporting code is
added so that it doesn't break boot"
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
Revert "crypto: crct10dif - Wrap crc_t10dif function all to use crypto transform framework"
crypto: caam - Fixed the memory out of bound overwrite issue
This reverts commits
67822649d739761214ee0b95a7f85731d939625a2d31e518a4
Unfortunately this change broke boot on some systems that used an
initrd which does not include the newly created crct10dif modules.
As these modules are required by sd_mod under certain configurations
this is a serious problem.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
When the task moves around the system, the corresponding cpuhw
per cpu strcuture should be popullated with the BHRB filter
request value so that PMU could be configured appropriately with
that during the next call into power_pmu_enable().
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Completely ignore BHRB privilege state filter request as we are
already configuring that with privilege state filtering attribute
for the accompanying PMU event. This would help achieve cleaner
user space interaction for BHRB.
This patch fixes a situation like this
Before patch:-
------------
./perf record -j any -e branch-misses:k ls
Error:
The sys_perf_event_open() syscall returned with 95 (Operation not
supported) for event (branch-misses:k).
/bin/dmesg may provide additional information.
No CONFIG_PERF_EVENTS=y kernel support configured?
Here 'perf record' actually copies over ':k' filter request into BHRB
privilege state filter config and our previous check in kernel would
fail that.
After patch:-
-------------
./perf record -j any -e branch-misses:k ls
perf perf.data perf.data.old test-mmap-ring
[ perf record: Woken up 1 times to write data ]
[ perf record: Captured and wrote 0.002 MB perf.data (~102 samples)]
Signed-off-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Acked-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Mark pnv_pci_init_ioda2_phb() as __init. It is called only from an
init function (pnv_pci_init()), and it calls an init function
(pnv_pci_init_ioda_phb()):
pnv_pci_init # init
pnv_pci_init_ioda2_phb # non-init
pnv_pci_init_ioda_phb # init
This should fix a section mismatch warning.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The sllp value is stored in mmu_psize_defs in such a way that we can easily OR
the value to get the operand for slbmte instruction. ie, the L and LP bits are
not contiguous. Decode the bits and use them correctly in tlbie.
regression is introduced by 1f6aaaccb1
"powerpc: Update tlbie/tlbiel as per ISA doc"
Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
We should not fallthrough different case statements in hpte_decode. Add
break statement to break out of the switch. The regression is introduced by
dcda287a9b "powerpc/mm: Simplify hpte_decode"
Reported-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Commit 801eb73f45 introduced
a bug while checking PTE flags. We have to drop the _PAGE_COHERENT flag
when __PAGE_NO_CACHE is set and the cache update policy is not write-through
(i.e. _PAGE_WRITETHRU is not set)
Signed-off-by: Denis Kirjanov <kda@linux-powerpc.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
CC: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The patch introduces flag EEH_DEV_SYSFS to keep track that the sysfs
entries for the corresponding EEH device (then PCI device) has been
added or removed, in order to avoid race condition.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
While restoring BARs for one specific PCI device, the pci_dev
instance should have been released. So it's not reliable to use
the pci_dev instance on restoring BARs. However, we still need
some information (e.g. PCIe capability position, header type) from
the pci_dev instance. So we have to store those information to
EEH device in advance.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
When EEH error happens to one specific PE, some devices with drivers
supporting EEH won't except hotplug on the device. However, there
might have other deivces without driver, or with driver without EEH
support. For the case, we need do partial hotplug in order to make
sure that the PE becomes absolutely quite during reset. Otherise,
the PE reset might fail and leads to failure of error recovery.
The current code doesn't handle that 'mixed' case properly, it either
uses the error callbacks to the drivers, or tries hotplug, but doesn't
handle a PE (EEH domain) composed of a combination of the two.
The patch intends to support so-called "partial" hotplug for EEH:
Before we do reset, we stop and remove those PCI devices without
EEH sensitive driver. The corresponding EEH devices are not detached
from its PE, but with special flag. After the reset is done, those
EEH devices with the special flag will be scanned one by one.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
When EEH error happens to one specific PE, the device drivers
of its attached EEH devices (PCI devices) are checked to see
the further action: reset with complete hotplug, or reset without
hotplug. However, that's not enough for those PCI devices whose
drivers can't support EEH, or those PCI devices without driver.
So we need do so-called "partial hotplug" on basis of PCI devices.
In the situation, part of PCI devices of the specific PE are
unplugged and plugged again after PE reset.
The patch changes pcibios_add_pci_devices() so that it can support
full hotplug and so-called "partial" hotplug based on device-tree
or real hardware. It's notable that pci_of_scan.c has been changed
for a bit in order to support the "partial" hotplug based on dev-tree.
Most of the generic code already supports that, we just need to
plumb it properly on our side.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Currently, we're trasversing the EEH devices list using list_for_each_entry().
That's not safe enough because the EEH devices might be removed from
its parent PE while doing iteration. The patch replaces that with
list_for_each_entry_safe().
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
When we do normal hotplug, the PE (shadow EEH structure) shouldn't be
kept around.
However, we need to keep it if the hotplug an artifial one caused by
EEH errors recovery.
Since we remove EEH device through the PCI hook pcibios_release_device(),
the flag "purge_pe" passed to various functions is meaningless. So the patch
removes the meaningless flag and introduce new flag "EEH_PE_KEEP"
to save the PE while doing hotplug during EEH error recovery.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Since pcibios_release_device() called by pci_stop_and_remove_bus_device()
has removed the device from the EEH cache, we needn't do that again.
Cc: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Bjorn Helgaas <bhelgaas@google.com>
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Make some functions public in order to support hotplug on either specific
PCI bus or PCI device in future.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
We will rely on pcibios_release_device() to remove the EEH cache
and unbind EEH device for the specific PCI device. So we shouldn't
hold the reference to the PCI device from EEH cache and EEH device.
Otherwise, pcibios_release_device() won't be called as we expected.
The patch removes the reference to the PCI device in EEH core.
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
During Machine Check interrupt on pseries platform, R3 generally points to
memory region inside RTAS (FWNMI) area. We see r3 corruption because when RTAS
delivers the machine check exception it passes the address inside FWNMI area
with the top most bit set. This patch fixes this issue by masking top two bit
in machine check exception handler.
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The presence or absence of EBB is advertised to userspace via the presence
or absence of PPC_FEATURE2_EBB in cpu_user_features2.
Because the kernel can be built without PMU support, we should only add
PPC_FEATURE2_EBB to cpu_user_features2 when we successfully register the
power8 PMU support.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The Kconfig symbol HOTPLUG was removed with commit 40b313608a ("Finally
eradicate CONFIG_HOTPLUG"). But there's still one select statement for
that symbol. It seems that select statement was added after the patch to
remove CONFIG_HOTPLUG was submitted. Anyhow, it is useless and can be
dropped.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Reviewed-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
In hard_irq_disable(), we accessed the PACA before we hard disabled
the interrupts, potentially causing a warning as get_paca() will
us debug_smp_processor_id().
Move that to after the disabling, and also use local_paca directly
rather than get_paca() to avoid several redundant and useless checks.
Signed-off-by: Tiejun Chen <tiejun.chen@windriver.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Module CRCs are implemented as absolute symbols that get resolved by
a linker script. We build an intermediate .o that contains an
unresolved symbol for each CRC. genksysms parses this .o, calculates
the CRCs and writes a linker script that "resolves" the symbols to
the calculated CRC.
Unfortunately the ppc64 relocatable kernel sees these CRCs as symbols
that need relocating and relocates them at boot. Commit d4703aef
(module: handle ppc64 relocating kcrctabs when CONFIG_RELOCATABLE=y)
added a hook to reverse the bogus relocations. Part of this patch
created a symbol at 0x0:
# head -2 /proc/kallsyms
0000000000000000 T reloc_start
c000000000000000 T .__start
This reloc_start symbol is causing lots of confusion to perf. It
thinks reloc_start is a massive function that stretches from 0x0 to
0xc000000000000000 and we get various cryptic errors out of perf,
including:
problem incrementing symbol count, skipping event
This patch removes the reloc_start linker script label and instead
defines it as PHYSICAL_START. We also need to wrap it with
CONFIG_PPC64 because the ppc32 kernel can set a non zero
PHYSICAL_START at compile time and we wouldn't want to subtract
it from the CRCs in that case.
Signed-off-by: Anton Blanchard <anton@samba.org>
Cc: <stable@kernel.org>
Acked-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
POWER8 comes with two different PVRs. This patch enables the additional
PVR in the cputable.
The existing entry (PVR=0x4b) is renamed to POWER8E and the new entry
(PVR=0x4d) is given POWER8.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This branch contains a couple of minor bug fixes and documentation
additions, but the bulk of it are several changes to the MAINTAINERS
file regarding the subsystems I've been involved with.
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Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux
Pull device tree bug fixes and maintainership updates from Grant Likely:
"This branch contains a couple of minor bug fixes and documentation
additions, but the bulk of it are several changes to the MAINTAINERS
file regarding the subsystems I've been involved with"
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux:
of/irq: init struct resource to 0 in of_irq_to_resource()
of/irq: Avoid calling list_first_entry() for empty list
of: add vendor prefixes for hisilicon
of: add vendor prefix for Qualcomm Atheros, Inc.
MAINTAINERS: Fix incorrect status tag
MAINTAINERS: Refactor device tree maintainership
MAINTAINERS: Change device tree mailing list
MAINTAINERS: Remove Grant Likely
Pull cgroup changes from Tejun Heo:
"This contains two patches, both of which aren't fixes per-se but I
think it'd be better to fast-track them.
One removes bcache_subsys_id which was added without proper review
through the block tree. Fortunately, bcache cgroup code is
unconditionally disabled, so this was never exposed to userland. The
cgroup subsys_id is removed. Kent will remove the affected (disabled)
code through bcache branch.
The other simplifies task_group_path_from_hierarchy(). The function
doesn't currently have in-kernel users but there are external code and
development going on dependent on the function and making the function
available for 3.11 would make things go smoother"
* 'for-3.11-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: replace task_cgroup_path_from_hierarchy() with task_cgroup_path()
cgroup: remove bcache_subsys_id which got added stealthily
Pull drm fixes from Dave Airlie:
"This is just a regular fixes pull, mostly nouveau and i915, the i915
ones fix RC6 on Sandybridge after suspend/resume, which I think people
have be wanting for quite a while!
Now you shouldn't wish for more patches, as the new mutex/reservation
code found a number of problems with the qxl driver, and it currently
makes lockdep angry, I'm working on a set of fixes for it, but its a
bit large, I'll submit them separately later today or tomorrow once
I've banged on them a bit more, just warning you in advance :-)"
Yeah, I'm definitely over the whole "wish for more patches" thing.
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm/crtc-helper: explicit DPMS on after modeset
drm/i915: fix up gt init sequence fallout
drm/i915: Serialize almost all register access
drm/i915: quirk no PCH_PWM_ENABLE for Dell XPS13 backlight
drm/i915: correctly restore fences with objects attached
drm/i915: Fix dereferencing invalid connectors in is_crtc_connector_off()
drm/i915: Sanitize shared dpll state
drm/i915: fix long-standing SNB regression in power consumption after resume v2
drm/i915: Preserve the DDI_A_4_LANES bit from the bios
drm/i915: fix pfit regression for non-autoscaled resolutions
drm/i915: fix up readout of the lvds dither bit on gen2/3
drm/nouveau: do not allow negative sizes for now
drm/nouveau: add falcon interrupt handler
drm/nouveau: use dedicated channel for async moves on GT/GF chipsets.
drm/nouveau: bump fence timeout to 15 seconds
drm/nouveau: do not unpin in nouveau_gem_object_del
drm/nv50/kms: fix pin refcnt leaks
drm/nouveau: fix some error-path leaks in fbcon handling code
drm/nouveau: fix locking issues in page flipping paths
Fix __wait_on_atomic_t() so that it calls the action func if the counter != 0
rather than if the counter is 0 so as to be analogous to __wait_on_bit().
Thanks to Yacine who found this by visual inspection.
This will affect FS-Cache in that it will could fail to sleep correctly when
trying to clean up after a netfs cookie is withdrawn.
Reported-by: Yacine Belkadi <yacine.belkadi.1@gmail.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Reviewed-by: Jeff Layton <jlayton@redhat.com>
cc: Milosz Tanski <milosz@adfin.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
