Scott Wood [Fri, 17 Apr 2015 22:53:06 +0000 (17:53 -0500)]
powerpc/qman: Change fsl,qman-channel-id to cell-index
It turns out that existing U-Boots will dereference NULL pointers
if the device tree does not have cell-index in the portal nodes.
No patch has yet been merged adding device tree nodes for this binding
(except a dtsi that has not yet been referenced), nor has any driver
yet been merged making use of the binding, so it's not too late to
change the binding in order to keep compatibility with existing
U-Boots.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Cc: Madalin-Cristian Bucur <madalin.bucur@freescale.com>
Scott Wood [Fri, 17 Apr 2015 21:17:14 +0000 (16:17 -0500)]
powerpc/mm: Use PFN_PHYS() in devmem_is_allowed()
This function can run on systems where physical addresses don't
fit in unsigned long, so make sure to use the macro that contains the
proper cast.
Signed-off-by: Scott Wood <scottwood@freescale.com>
LEROY Christophe [Fri, 17 Apr 2015 16:37:17 +0000 (18:37 +0200)]
powerpc/8xx: mmu_virtual_psize incorrect for 16k pages
mmu_virtual_psize shall be set to MMU_PAGE_16K when 16k pages have
been selected
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Igal Liberman [Thu, 16 Apr 2015 11:53:36 +0000 (14:53 +0300)]
powerpc/dts: Fix incorrect clock-names property
Signed-off-by: Igal Liberman <Igal.Liberman@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Igal Liberman [Thu, 16 Apr 2015 11:41:11 +0000 (14:41 +0300)]
dt/bindings: fsl/guts: Added global-utilities compatibles
v3 - Addressed Scott's feedback:
Added "fsl,<chip>-guts"
v2 - Addressed Scott's feedback
Signed-off-by: Igal Liberman <Igal.Liberman@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Shengzhou Liu [Thu, 9 Apr 2015 08:07:45 +0000 (16:07 +0800)]
powerpc/fsl-booke: Add T1023 RDB board support
T1023RDB is a Freescale Reference Design Board that hosts T1023 SoC.
T1023RDB board Overview
-----------------------
- T1023 SoC integrating two 64-bit e5500 cores up to 1.4GHz
- CoreNet fabric supporting coherent and noncoherent transactions with
prioritization and bandwidth allocation
- Memory: 2GB Micron MT40A512M8HX unbuffered 32-bit fixed DDR4 without ECC
- Accelerator: DPAA components consist of FMan, BMan, QMan, DCE and SEC
- Ethernet interfaces:
- one 1G RGMII port on-board(RTL8211F PHY)
- one 1G SGMII port on-board(RTL8211F PHY)
- one 2.5G SGMII port on-board(AQR105 PHY)
- PCIe: Two Mini-PCIe connectors on-board.
- SerDes: 4 lanes up to 10.3125GHz
- NOR: 128MB S29GL01GS110TFIV10 Spansion NOR Flash
- NAND: 512MB S34MS04G200BFI000 Spansion NAND Flash
- eSPI: 64MB S25FL512SAGMFI010 Spansion SPI flash
- USB: one Type-A USB 2.0 port with internal PHY
- eSDHC: support SD/MMC card and eMMC flash on-board
- 256Kbit M24256 I2C EEPROM
- RTC: Real-time clock DS1339 on I2C bus
- UART: one serial port on-board with RJ45 connector
- Debugging: JTAG/COP for T1023 debugging
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
Signed-off-by: Scott Wood <scottwood@freescale.com>
Shengzhou Liu [Thu, 9 Apr 2015 08:07:44 +0000 (16:07 +0800)]
powerpc/fsl-booke: Add T1024 RDB board support
T1024RDB is a Freescale Reference Design Board that hosts the T1024 SoC.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
[scottwood: vendor prefix: s/at24/atmel/ and trimmed detailed
board description with too-long lines]
Signed-off-by: Scott Wood <scottwood@freescale.com>
Shengzhou Liu [Thu, 9 Apr 2015 08:07:43 +0000 (16:07 +0800)]
powerpc/fsl-booke: Add T1024 QDS board support
Add support for Freescale T1024/T1023 QorIQ Development System Board.
T1024QDS is a high-performance computing evaluation, development and
test platform for T1024 QorIQ Power Architecture processor.
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
[scottwood: vendor prefix: s/at24/atmel/ and trimmed detailed
board description with too-long lines]
Signed-off-by: Scott Wood <scottwood@freescale.com>
Shengzhou Liu [Wed, 15 Apr 2015 03:48:08 +0000 (11:48 +0800)]
powerpc/fsl-booke: Add device tree support for T1024/T1023 SoC
The T1024 SoC includes the following function and features:
- Two 64-bit Power architecture e5500 cores, up to 1.4GHz
- private 256KB L2 cache each core and shared 256KB CoreNet platform cache (CPC)
- 32-/64-bit DDR3L/DDR4 SDRAM memory controller with ECC and interleaving support
- Data Path Acceleration Architecture (DPAA) incorporating acceleration
- Four MAC for 1G/2.5G/10G network interfaces (RGMII, SGMII, QSGMII, XFI)
- High-speed peripheral interfaces
- Three PCI Express 2.0 controllers
- Additional peripheral interfaces
- One SATA 2.0 controller
- Two USB 2.0 controllers with integrated PHY
- Enhanced secure digital host controller (SD/eSDHC/eMMC)
- Enhanced serial peripheral interface (eSPI)
- Four I2C controllers
- Four 2-pin UARTs or two 4-pin UARTs
- Integrated Flash Controller supporting NAND and NOR flash
- Two 8-channel DMA engines
- Multicore programmable interrupt controller (PIC)
- LCD interface (DIU) with 12 bit dual data rate
- QUICC Engine block supporting TDM, HDLC, and UART
- Deep Sleep power implementaion (wakeup from GPIO/Timer/Ethernet/USB)
- Support for hardware virtualization and partitioning enforcement
- QorIQ Platform's Trust Architecture 2.0
Signed-off-by: Shengzhou Liu <Shengzhou.Liu@freescale.com>
[scottwood@freescale.com: whitespace fixes]
Signed-off-by: Scott Wood <scottwood@freescale.com>
Scott Wood [Tue, 7 Apr 2015 03:00:38 +0000 (22:00 -0500)]
powerpc/e500mc: Remove dead L2 flushing code in idle_e500.S
This code can never be executed as it is only built when
CONFIG_PPC_E500MC is unset, but the only CPUs that have CPU_FTR_L2CSR
require CONFIG_PPC_E500MC and do not have the MSR/HID0-based nap
mechanism that this file uses.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Scott Wood [Fri, 3 Apr 2015 03:14:11 +0000 (22:14 -0500)]
powerpc/e6500: Optimize hugepage TLB misses
Some workloads take a lot of TLB misses despite using traditional
hugepages. Handle these TLB misses in the asm fastpath rather than
going through a bunch of C code. With this patch I measured around a
5x speedup in handling hugepage TLB misses.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Igal Liberman [Mon, 12 Jan 2015 06:03:57 +0000 (08:03 +0200)]
powerpc/dts: Unify B4 mux nodes
Signed-off-by: Igal Liberman <Igal.Liberman@freescale.com>
Change-Id: Ic5f28f7b492b708f00a5ff74dda723ce5e1da0ba
Signed-off-by: Scott Wood <scottwood@freescale.com>
Daniel Axtens [Tue, 28 Apr 2015 05:12:07 +0000 (15:12 +1000)]
powerpc/powernv: Move dma_set_mask() from pnv_phb to pci_controller_ops
Previously, dma_set_mask() on powernv was convoluted:
0) Call dma_set_mask() (a/p/kernel/dma.c)
1) In dma_set_mask(), ppc_md.dma_set_mask() exists, so call it.
2) On powernv, that function pointer is pnv_dma_set_mask().
In pnv_dma_set_mask(), the device is pci, so call pnv_pci_dma_set_mask().
3) In pnv_pci_dma_set_mask(), call pnv_phb->set_dma_mask() if it exists.
4) It only exists in the ioda case, where it points to
pnv_pci_ioda_dma_set_mask(), which is the final function.
So the call chain is:
dma_set_mask() ->
pnv_dma_set_mask() ->
pnv_pci_dma_set_mask() ->
pnv_pci_ioda_dma_set_mask()
Both ppc_md and pnv_phb function pointers are used.
Rip out the ppc_md call, pnv_dma_set_mask() and pnv_pci_dma_set_mask().
Instead:
0) Call dma_set_mask() (a/p/kernel/dma.c)
1) In dma_set_mask(), the device is pci, and pci_controller_ops.dma_set_mask()
exists, so call pci_controller_ops.dma_set_mask()
2) In the ioda case, that points to pnv_pci_ioda_dma_set_mask().
The new call chain is
dma_set_mask() ->
pnv_pci_ioda_dma_set_mask()
Now only the pci_controller_ops function pointer is used.
The fallback paths for p5ioc2 are the same.
Previously, pnv_pci_dma_set_mask() would find no pnv_phb->set_dma_mask()
function, to it would call __set_dma_mask().
Now, dma_set_mask() finds no ppc_md call or pci_controller_ops call,
so it calls __set_dma_mask().
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 28 Apr 2015 05:12:06 +0000 (15:12 +1000)]
powerpc/pci: add dma_set_mask to pci_controller_ops
Some systems only need to deal with DMA masks for PCI devices.
For these systems, we can avoid the need for a platform hook and
instead use a pci controller based hook.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 28 Apr 2015 05:12:05 +0000 (15:12 +1000)]
powerpc/powernv: Specialise pci_controller_ops for each controller type
Remove powernv generic PCI controller operations. Replace it with
controller ops for each of the two supported PHBs.
As an added bonus, make the two new structs const, which will help
guard against bugs such as the one introduced in
65ebf4b63
("powerpc/powernv: Move controller ops from ppc_md to controller_ops")
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:28:03 +0000 (14:28 +1000)]
powerpc: Remove MSI-related PCI controller ops from ppc_md
Remove unneeded ppc_md functions. Patch callsites to use pci_controller_ops
functions exclusively.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:28:02 +0000 (14:28 +1000)]
powerpc/mpic_u3msi: Move MSI-related ops to pci_controller_ops
Move the u3 MPIC msi subsystem to use the pci_controller_ops structure
rather than ppc_md for MSI related PCI controller operations.
As with fsl_msi, operations are plugged in at the subsys level, after
controller creation. Again, we iterate over all controllers and
populate them with the MSI ops.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:28:01 +0000 (14:28 +1000)]
powerpc/pasemi: Move MSI-related ops to pci_controller_ops
Move the PaSemi MPIC msi subsystem to use the pci_controller_ops
structure rather than ppc_md for MSI related PCI controller
operations.
As with fsl_msi, operations are plugged in at the subsys level, after
controller creation. Again, we iterate over all controllers and
populate them with the MSI ops.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:28:00 +0000 (14:28 +1000)]
powerpc/ppc4xx_hsta_msi: Move MSI-related ops to pci_controller_ops
Move the ppc4xx hsta msi subsystem to use the pci_controller_ops
structure rather than ppc_md for MSI related PCI controller
operations.
As with fsl_msi, operations are plugged in at the subsys level, after
controller creation. Again, we iterate over all controllers and
populate them with the MSI ops.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:27:59 +0000 (14:27 +1000)]
powerpc/ppc4xx_msi: Move MSI-related ops to pci_controller_ops
Move the ppc4xx msi subsystem to use the pci_controller_ops structure
rather than ppc_md for MSI related PCI controller operations.
As with fsl_msi, operations are plugged in at the subsys level, after
controller creation. Again, we iterate over all controllers and
populate them with the MSI ops.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:27:58 +0000 (14:27 +1000)]
powerpc/fsl_msi: Move MSI-related ops to pci_controller_ops
Move the fsl_msi subsystem to use the pci_controller_ops structure
rather than ppc_md for MSI related PCI controller operations.
Previously, MSI ops were added to ppc_md at the subsys level. However,
in fsl_pci.c, PCI controllers are created at the at arch level. So,
unlike in e.g. PowerNV/pSeries/Cell, we can't simply populate a
platform-level controller ops structure and have it copied into the
controllers when they are created.
Instead, walk every phb, and attempt to populate it with the MSI ops.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:27:57 +0000 (14:27 +1000)]
powerpc/pseries: Move MSI-related ops to pci_controller_ops
Move the pseries platform to use the pci_controller_ops structure
rather than ppc_md for MSI related PCI controller operations
We need to iterate all PHBs because the MSI setup happens later than
find_and_init_phbs() - mpe.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:27:56 +0000 (14:27 +1000)]
powerpc/cell: Move MSI-related ops to pci_controller_ops
Move the Cell platform to use the pci_controller_ops structure rather
than ppc_md for MSI related PCI controller operations.
We can be confident that the functions will be added to the platform's
ops struct before any PCI controller's ops struct is populated
because:
1) These ops are added to the struct in a subsys initcall.
We populate the ops in axon_msi_probe, which is the probe call for the
axon-msi driver. However the driver is registered in axon_msi_init,
which is a subsys initcall, so this will happen at the subsys level.
2) The controller recieves the struct later, in a device initcall.
Cell populates the controller in cell_setup_phb, which is hooked up to
ppc_md.pci_setup_phb. ppc_md.pci_setup_phb is only ever called in
of_platform.c, as part of the OpenFirmware PCI driver's probe
routine. That driver is registered in a device initcall, so it will
occur *after* the struct is properly populated.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:27:55 +0000 (14:27 +1000)]
powerpc/powernv: Move MSI-related ops to pci_controller_ops
Move the PowerNV/BML platform to use the pci_controller_ops structure
rather than ppc_md for MSI related PCI controller operations.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Daniel Axtens [Tue, 14 Apr 2015 04:27:54 +0000 (14:27 +1000)]
powerpc: Add MSI operations to pci_controller_ops struct
Add MSI setup and teardown functions to pci_controller_ops.
Patch the callsites (arch_{setup,teardown}_msi_irqs) to prefer the
controller ops version if it's available.
Signed-off-by: Daniel Axtens <dja@axtens.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:44 +0000 (14:06 +1000)]
opal: Remove events notifier
All users of the old opal events notifier have been converted over to
the irq domain so remove the event notifier functions.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:43 +0000 (14:06 +1000)]
powernv/opal-dump: Convert to irq domain
Convert the opal dump driver to the new opal irq domain.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:42 +0000 (14:06 +1000)]
powernv/elog: Convert elog to opal irq domain
This patch converts the elog code to use the opal irq domain instead
of notifier events.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:41 +0000 (14:06 +1000)]
powernv/opal: Convert opal message events to opal irq domain
This patch converts the opal message event to use the new opal irq
domain.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:40 +0000 (14:06 +1000)]
powernv/eeh: Update the EEH code to use the opal irq domain
The eeh code currently uses the old notifier method to get eeh events
from OPAL. It also contains some logic to filter opal events which has
been moved into the virtual irqchip. This patch converts the eeh code
to the new event interface which simplifies event handling.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:39 +0000 (14:06 +1000)]
hvc: Convert to using interrupts instead of opal events
Convert the opal hvc driver to use the new irqchip to register for
opal events. As older firmware versions may not have device tree
bindings for the interrupt parent we just use a hardcoded hwirq based
on the event number.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:38 +0000 (14:06 +1000)]
ipmi/powernv: Convert to irq event interface
Convert the opal ipmi driver to use the new irq interface for events.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Acked-by: Corey Minyard <cminyard@mvista.com>
Cc: Corey Minyard <minyard@acm.org>
Cc: openipmi-developer@lists.sourceforge.net
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:37 +0000 (14:06 +1000)]
powerpc/powernv: Add a virtual irqchip for opal events
Whenever an interrupt is received for opal the linux kernel gets a
bitfield indicating certain events that have occurred and need handling
by the various device drivers. Currently this is handled using a
notifier interface where we call every device driver that has
registered to receive opal events.
This approach has several drawbacks. For example each driver has to do
its own checking to see if the event is relevant as well as event
masking. There is also no easy method of recording the number of times
we receive particular events.
This patch solves these issues by exposing opal events via the
standard interrupt APIs by adding a new interrupt chip and
domain. Drivers can then register for the appropriate events using
standard kernel calls such as irq_of_parse_and_map().
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Alistair Popple [Fri, 15 May 2015 04:06:36 +0000 (14:06 +1000)]
powerpc/powernv: Reorder OPAL subsystem initialisation
Most of the OPAL subsystems are always compiled in for PowerNV and
many of them need to be initialised before or after other OPAL
subsystems. Rather than trying to control this ordering through
machine initcalls it is clearer and easier to control initialisation
order with explicit calls in opal_init.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Cc: Mahesh Jagannath Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Shreyas B. Prabhu [Mon, 20 Apr 2015 05:02:58 +0000 (10:32 +0530)]
powerpc/powernv: Introduce sysfs control for fastsleep workaround behavior
Fastsleep is one of the idle state which cpuidle subsystem currently
uses on power8 machines. In this state L2 cache is brought down to a
threshold voltage. Therefore when the core is in fastsleep, the
communication between L2 and L3 needs to be fenced. But there is a bug
in the current power8 chips surrounding this fencing.
OPAL provides a workaround which precludes the possibility of hitting
this bug. But running with this workaround applied causes checkstop
if any correctable error in L2 cache directory is detected. Hence OPAL
also provides a way to undo the workaround.
In the existing implementation, workaround is applied by the last thread
of the core entering fastsleep and undone by the first thread waking up.
But this has a performance cost. These OPAL calls account for roughly
4000 cycles everytime the core has to enter or wakeup from fastsleep.
This patch introduces a sysfs attribute (fastsleep_workaround_applyonce)
to choose the behavior of this workaround.
By default, fastsleep_workaround_applyonce = 0. In this case, workaround
is applied/undone everytime the core enters/exits fastsleep.
fastsleep_workaround_applyonce = 1. In this case the workaround is
applied once on all the cores and never undone. This can be triggered by
echo 1 > /sys/devices/system/cpu/fastsleep_workaround_applyonce
For simplicity this attribute can be modified only once. Implying, once
fastsleep_workaround_applyonce is changed to 1, it cannot be reverted
to the default state.
Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com>
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Shreyas B. Prabhu [Mon, 20 Apr 2015 05:02:57 +0000 (10:32 +0530)]
powerpc/powernv: Move cpuidle related code from setup.c to new file
This is a cleanup patch; doesn't change any functionality. Moves
all cpuidle related code from setup.c to a new file.
Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com>
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
[mpe: Fix the SMP=n build by including asm/smp.h in idle.c]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Shreyas B. Prabhu [Mon, 20 Apr 2015 05:02:56 +0000 (10:32 +0530)]
powerpc: Fix cpu_online_cores_map to return only online threads mask
Currently, cpu_online_cores_map returns a mask, which for every core with
at least one online thread, has the bit for thread 0 of the core set to 1,
and the bits for all other threads of the core set to 0. But thread 0 of
the core itself may not be online always. In such cases, if the returned
mask is used for IPI, then it'll cause IPIs to be skipped on cores where
the first thread is offline, because the IPI code refuses to send IPIs to
offline threads.
Fix this by setting the bit of the first online thread in the core.
This is done by fixing this in the underlying function
cpu_thread_mask_to_cores.
The result has the property that for all cores with online threads, there
is one bit set in the returned map. And further, all bits that are set in
the returned map correspond to online threads.
Signed-off-by: Shreyas B. Prabhu <shreyas@linux.vnet.ibm.com>
Reviewed-by: Preeti U Murthy <preeti@linux.vnet.ibm.com>
[ Changelog from Michael Ellerman <mpe@ellerman.id.au> ]
Reviewed-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Laurent Dufour [Tue, 5 May 2015 15:30:21 +0000 (17:30 +0200)]
powerpc: Enable sys_kcmp() for CRIU
The commit
8170a83f15ee ("powerpc: Wireup the kcmp syscall to sys_ni") has
disabled the kcmp syscall for powerpc. This has been done due to the use
of unsigned long parameters which may require a dedicated wrapper to handle
32bit process on top of 64bit kernel. However in the kcmp() case, the 2
unsigned long parameters are currently only used to carry file descriptors
from user space to the kernel. Since such a parameter is passed through
register, and file descriptor doesn't need to get extended, there is,
today, no need for a wrapper.
In the case there will be a need to pass address in or out of this system
call, then a wrapper could be required, it will then be to care of it.
As today this is not the case, it is safe to enable kcmp() on powerpc.
Tested (by Laurent) on 64-bit, 32-bit, and 32-bit userspace on 64-bit
kernel using tools/testing/selftests/kcmp [mpe].
Signed-off-by: Laurent Dufour <ldufour@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Wed, 22 Apr 2015 05:36:50 +0000 (15:36 +1000)]
powerpc: Little endian should depend on PPC_BOOK3S_64
The only little endian configuration we support is ppc64le, all other
configurations are big endian.
So we should only offer a choice of endian if we're building for 64-bit
Book3S, ie. PPC_BOOK3S_64.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Wei Yang [Mon, 27 Apr 2015 01:25:12 +0000 (09:25 +0800)]
powerpc/eeh: remove unused macro IS_BRIDGE
Currently, the macro IS_BRIDGE is not used any where.
This patch just removes it.
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Wei Yang [Mon, 27 Apr 2015 01:25:11 +0000 (09:25 +0800)]
powerpc/eeh: fix powernv_eeh_wait_state delay logic
As the comment indicates, powernv_eeh_get_state() will inform EEH core to
delay 1 second. This means the delay doesn't happen when
powernv_eeh_get_state() returns.
This patch moves the delay subtraction just before msleep(), which is the
same logic in pseries_eeh_wait_state().
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Wei Yang [Mon, 27 Apr 2015 01:25:10 +0000 (09:25 +0800)]
powerpc/eeh: fix comment for wait_state()
To retrieve the PCI slot state, EEH driver would set a timeout for that.
While current comment is not aligned to what the code does.
This patch fixes those comments according to the code.
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Wei Yang [Mon, 27 Apr 2015 01:25:09 +0000 (09:25 +0800)]
powerpc/eeh: fix start/end/flags type in struct pci_io_addr_range{}
struct pci_io_addr_range{} stores the information of pci resources. It
would be better to keep these related fields have the same type as in
struct resource{}.
This patch fixes the start/end/flags type in struct pci_io_addr_range{} to
have the same type as in struct resource{}.
Signed-off-by: Wei Yang <weiyang@linux.vnet.ibm.com>
Acked-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Gavin Shan [Thu, 26 Mar 2015 05:42:09 +0000 (16:42 +1100)]
drivers/vfio: Support EEH error injection
The patch adds one more EEH sub-command (VFIO_EEH_PE_INJECT_ERR)
to inject the specified EEH error, which is represented by
(struct vfio_eeh_pe_err), to the indicated PE for testing purpose.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Gavin Shan [Thu, 26 Mar 2015 05:42:08 +0000 (16:42 +1100)]
powerpc/eeh: Introduce eeh_pe_inject_err()
The patch defines PCI error types and functions in uapi/asm/eeh.h
and exports function eeh_pe_inject_err(), which will be called by
VFIO driver to inject the specified PCI error to the indicated
PE for testing purpose.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Gavin Shan [Thu, 26 Mar 2015 05:42:07 +0000 (16:42 +1100)]
powerpc/eeh: Move PE state constants around
There are two equivalent sets of PE state constants, defined in
arch/powerpc/include/asm/eeh.h and include/uapi/linux/vfio.h.
Though the names are different, their corresponding values are
exactly same. The former is used by EEH core and the latter is
used by userspace.
The patch moves those constants from arch/powerpc/include/asm/eeh.h
to arch/powerpc/include/uapi/asm/eeh.h, which are expected to be
used by userspace from now on. We can't delete those constants in
vfio.h as it's uncertain that those constants have been or will be
used by userspace.
Suggested-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Joel Stanley [Thu, 30 Apr 2015 03:50:07 +0000 (13:50 +1000)]
powerpc/powernv: Silence SYSPARAM warning on boot
OpenPower BMC machines do not place any sysparams in the device tree, so
at every boot we get a warning:
[ 0.437176] SYSPARAM: Opal sysparam node not found
Remove the warning, and reorder the init so we don't peform allocations
when there is no sysparam node in the device tree.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Acked-by: Neelesh Gupta <neelegup@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Fri, 1 May 2015 03:20:25 +0000 (13:20 +1000)]
powerpc/cell: Drop cbe-oss-dev mailing list from MAINTAINERS
Traffic on the cbe-oss-dev list is more or less non-existent, other than
CC's from linuxppc.
It's seems like we may as well just send everyone to linuxppc and
archive the list.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Acked-by: Jeremy Kerr <jk@ozlabs.org>
Michael Ellerman [Mon, 11 May 2015 10:01:02 +0000 (20:01 +1000)]
powerpc/vdso: Disable building the 32-bit VDSO on little endian
The only little endian configuration we support is ppc64le. As such if
we're building little endian we don't need a 32-bit VDSO, because there
is no 32-bit userspace.
This patch is a fairly ugly mess of #ifdefs, but is the minimal logic
required to disable the 32-bit VDSO. We can hopefully clean up the
result in future with some further refactoring.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Wed, 22 Apr 2015 05:40:35 +0000 (15:40 +1000)]
powerpc/vdso: Combine start/size variables
In vdso_fixup_features() we have start64/start32 and size64/size32, but
they have the same types, ie. void * and unsigned long.
They're only used to save the return value from find_sectionXX() for the
subsequent call to do_feature_fixups(), so there's no overlap in their
usage either.
So we can just consolidate them into start/size and avoid the
duplication.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Wed, 22 Apr 2015 05:40:34 +0000 (15:40 +1000)]
powerpc/vdso: Remove unused debug code
It's in the git history if we ever need it back.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Thu, 23 Apr 2015 07:27:12 +0000 (17:27 +1000)]
powerpc: Reject binutils 2.24 when building little endian
There is a bug in binutils 2.24 which causes miscompilation if we're
building little endian and using weak symbols (which the kernel does).
It is fixed in binutils commit
57fa7b8c7e59 "Correct elf_merge_st_other
arguments for weak symbols", which is in binutils 2.25 and has been
backported to the binutils 2.24 branch and has been picked up by most
distros it seems.
However if we're running stock 2.24 (no extra version) then the bug is
present, so check for that and bail.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Tue, 21 Apr 2015 12:26:57 +0000 (22:26 +1000)]
powerpc: Don't do gcc version checks if we're building with clang
We have several checks for bad gcc versions in our Makefile. These don't
apply if we're building with clang, so skip them in that case.
The obvious check would be for ${COMPILER} = "gcc", but because of the
way the logic in the top level Makefile conditionally sets COMPILER,
it's possible that we're building with gcc but COMPILER was not set.
So instead check for ${COMPILER} != "clang", which we know is currently
the only other possibility.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Wed, 15 Apr 2015 02:17:07 +0000 (12:17 +1000)]
powerpc: Show utsname->machine in boot-up banner
Currently we print "Starting Linux PPC64" at boot. But we don't mention
anywhere whether the kernel is big or little endian.
If we print the utsname->machine value instead we get either "ppc64" or
"ppc64le" which is much more informative, eg:
Starting Linux ppc64le #1 SMP Wed Apr 15 12:12:20 AEST 2015
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Fri, 10 Apr 2015 01:52:06 +0000 (11:52 +1000)]
powerpc/pasemi: Only the build the pasemi MSI code for PASEMI=y
The pasemi MSI code is currently always built when MPIC=y && PCI_MSI=y.
It should not have any effect on other platforms, because it immediately
checks the MPIC's compatible property for "pasemi,pwrficient-openpic".
However it's odd that it's still built even when PASEMI=n. It also
needn't be in sysdev, as it's only used by pasemi. So move it into
platforms/pasemi, whereby it will only be built for PASEMI=y.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Michael Ellerman [Wed, 25 Mar 2015 09:11:56 +0000 (20:11 +1100)]
powerpc: Make STRICT_MM_TYPECHECKS a config option
The STRICT_MM_TYPECHECKS code has bit-rotted over the years. To make it
possible to easily build test it, make it a CONFIG option.
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Nathan Fontenot [Thu, 30 Apr 2015 01:44:58 +0000 (20:44 -0500)]
powerpc/pseries: Fix possible leaked device node reference
Failure return from dlpar_configure_connector when dlpar adding cpus
results in leaking references to the cpus parent device node. Move the
call to of_node_put() prior to checking the result of
dlpar_configure_connector.
Fixes: 8d5ff320766f ("powerpc/pseries: Make dlpar_configure_connector parent node aware")
Signed-off-by: Nathan Fontenot <nfont@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Krzysztof Kozlowski [Mon, 27 Apr 2015 12:48:47 +0000 (21:48 +0900)]
powerpc: Constify irq_domain_ops
The irq_domain_ops are not modified by the driver and the irqdomain core
code accepts pointer to a const data.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Linus Torvalds [Sun, 10 May 2015 22:12:29 +0000 (15:12 -0700)]
Linux 4.1-rc3
Linus Torvalds [Sun, 10 May 2015 21:58:53 +0000 (14:58 -0700)]
Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"I really need to get back to sending these on my Friday, instead of my
Monday morning, but nothing too amazing in here: a few amdkfd fixes, a
few radeon fixes, i915 fixes, one tegra fix and one core fix"
* 'drm-fixes' of git://people.freedesktop.org/~airlied/linux:
drm: Zero out invalid vblank timestamp in drm_update_vblank_count.
drm/tegra: Don't use vblank_disable_immediate on incapable driver.
drm/radeon: stop trying to suspend UVD sessions
drm/radeon: more strictly validate the UVD codec
drm/radeon: make UVD handle checking more strict
drm/radeon: make VCE handle check more strict
drm/radeon: fix userptr lockup
drm/radeon: fix userptr BO unpin bug v3
drm/amdkfd: Initialize sdma vm when creating sdma queue
drm/amdkfd: Don't report local memory size
drm/amdkfd: allow unregister process with queues
drm/i915: Drop PIPE-A quirk for 945GSE HP Mini
drm/i915: Sink rate read should be saved in deca-kHz
drm/i915/dp: there is no audio on port A
drm/i915: Add missing MacBook Pro models with dual channel LVDS
drm/i915: Assume dual channel LVDS if pixel clock necessitates it
drm/radeon: don't setup audio on asics that don't support it
drm/radeon: disable semaphores for UVD V1 (v2)
Dave Airlie [Sun, 10 May 2015 20:06:22 +0000 (06:06 +1000)]
Merge tag 'drm-intel-fixes-2015-05-08' of git://anongit.freedesktop.org/drm-intel into drm-fixes
misc i915 fixes.
* tag 'drm-intel-fixes-2015-05-08' of git://anongit.freedesktop.org/drm-intel:
drm/i915: Drop PIPE-A quirk for 945GSE HP Mini
drm/i915: Sink rate read should be saved in deca-kHz
drm/i915/dp: there is no audio on port A
drm/i915: Add missing MacBook Pro models with dual channel LVDS
drm/i915: Assume dual channel LVDS if pixel clock necessitates it
Mario Kleiner [Tue, 7 Apr 2015 04:31:09 +0000 (06:31 +0200)]
drm: Zero out invalid vblank timestamp in drm_update_vblank_count.
Since commit
844b03f27739135fe1fed2fef06da0ffc4c7a081 we make
sure that after vblank irq off, we return the last valid
(vblank count, vblank timestamp) pair to clients, e.g., during
modesets, which is good.
An overlooked side effect of that commit for kms drivers without
support for precise vblank timestamping is that at vblank irq
enable, when we update the vblank counter from the hw counter, we
can't update the corresponding vblank timestamp, so now we have a
totally mismatched timestamp for the new count to confuse clients.
Restore old client visible behaviour from before Linux 3.17, but
zero out the timestamp at vblank counter update (instead of disable
as in original implementation) if we can't generate a meaningful
timestamp immediately for the new vblank counter. This will fix
this regression, so callers know they need to retry again later
if they need a valid timestamp, but at the same time preserves
the improvements made in the commit mentioned above.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Cc: <stable@vger.kernel.org> #v3.17+
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Linus Torvalds [Sun, 10 May 2015 18:16:48 +0000 (11:16 -0700)]
Merge branch 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm
Pull ARM fixes from Russell King:
"A set of ARM fixes:
- fix an off-by-one error in the iommu DMA ops, which caused errors
with a 4GiB size.
- remove comments mentioning the non-existent CONFIG_CPU_ARM1020_CPU_IDLE
macro.
- remove useless CONFIG_CPU_ICACHE_STREAMING_DISABLE blocks, where
this symbol never appeared in any Kconfig.
- fix Feroceon code to cope with a previous change correctly (it
incorrectly left an additional word in an assembly structure
definition)
- avoid a misleading IRQ affinity warning in the ARM PMU code for
IRQs which are already affine to their CPUs.
- fix the node name printed in the IRQ affinity warning"
* 'fixes' of git://ftp.arm.linux.org.uk/~rmk/linux-arm:
ARM: 8352/1: perf: Fix the pmu node name in warning message
ARM: 8351/1: perf: don't warn about missing interrupt-affinity property for PPIs
ARM: 8350/1: proc-feroceon: Fix feroceon_proc_info macro
ARM: 8349/1: arch/arm/mm/proc-arm925.S: remove dead #ifdef block
ARM: 8348/1: remove comments on CPU_ARM1020_CPU_IDLE
ARM: 8347/1: dma-mapping: fix off-by-one check in arm_setup_iommu_dma_ops
Linus Torvalds [Sun, 10 May 2015 18:13:19 +0000 (11:13 -0700)]
Merge tag 'samsung-fixes-1' of git://git./linux/kernel/git/kgene/linux-samsung
Pull samsung fixes from Kukjin Kim:
"Here is Samsung fixes for v4.1. Since I've missed to send this via
arm-soc tree before v4.1-rc3, so I'm sending this to you directly
- fix commit
ea08de16eb1b ("ARM: dts: Add DISP1 power domain for
exynos5420") which causes 'unhandled fault: imprecise external
abort' error when PD turned off. ("make DP a consumer of DISP1
power domain")
- fix 's3c-rtc' probe failure on Odriod-X2/U2/U3 boards ("add
'rtc_src' clock to rtc node for source clock of rtc")
- fix typo for 'cpu-crit-0' trip point on exynos5420/5440
- fix S2R failure on exynos5250-snow due to card power of Marvell
WiFi driver (suspend/resume) ("add keep-power-in-susped to WiFi
SDIO node")"
* tag 'samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for exynos5250-snow
ARM: dts: Fix typo in trip point temperature for exynos5420/5440
ARM: dts: add 'rtc_src' clock to rtc node for exynos4412-odroid boards
ARM: dts: Make DP a consumer of DISP1 power domain on Exynos5420
Linus Torvalds [Sat, 9 May 2015 23:13:38 +0000 (16:13 -0700)]
Merge tag 'fixes-for-linus' of git://git./linux/kernel/git/arm/arm-soc
Pull ARM SoC fixes from Arnd Bergmann:
"A few patches have come up since the merge window. The largest one is
a rewrite of the PXA lubbock/mainstone IRQ handling. This was already
broken in 2011 by a change to the GPIO code and only noticed now.
The other changes contained here are:
MAINTAINERS file updates:
- Ray Jui and Scott Branden are now co-maintainers for some of the
mach-bcm chips, while Christian Daudt and Marc Carino have stepped
down.
- Andrew Victor is no longer maintaining at91. Instead, Alexandre
Belloni now becomes an official maintainer, after having done a
bulk of the work for a while.
- Baruch Siach, who added the mach-digicolor platform in 4.1 is now
listed as maintainer
- The git URL for mach-socfpga has changed
Bug fixes:
- Three bug fixes for new rockchip rk3288 code
- A regression fix to make SD card support work on certain ux500
boards
- multiple smaller dts fixes for imx, omap, mvebu, and shmobile
- a regression fiix for omap3 power consumption
- a fix for regression in the ARM CCI bus driver
Configuration changes:
- more imx platforms are now enabled in multi_v7_defconfig"
* tag 'fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (39 commits)
MAINTAINERS: add Conexant Digicolor machines entry
MAINTAINERS: socfpga: update the git repo for SoCFPGA
ARM: multi_v7_defconfig: Select more FSL SoCs
MAINTAINERS: replace an AT91 maintainer
drivers: CCI: fix used_mask init in validate_group()
bus: omap_l3_noc: Fix master id address decoding for OMAP5
bus: omap_l3_noc: Fix offset for DRA7 CLK1_HOST_CLK1_2 instance
ARM: dts: dra7: Fix efuse register size for ABB
ARM: dts: am57xx-beagle-x15: Switch GPIO fan number
ARM: dts: am57xx-beagle-x15: Switch UART mux pins
ARM: dts: am437x-sk: reduce col-scan-delay-us
ARM: dts: am437x-sk: fix for new newhaven display module revision
ARM: dts: am57xx-beagle-x15: Fix RTC aliases
ARM: dts: am57xx-beagle-x15: Fix IRQ type for mcp7941x
ARM: dts: omap3: Add #iommu-cells to isp and iva iommu
ARM: omap2plus_defconfig: Enable EXTCON_USB_GPIO
ARM: dts: OMAP3-N900: Add microphone bias voltages
ARM: OMAP2+: Fix omap off idle power consumption creeping up
MAINTAINERS: Update brcmstb entry
MAINTAINERS: Remove Christian Daudt for mach-bcm
...
Linus Torvalds [Sat, 9 May 2015 23:07:14 +0000 (16:07 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/ebiederm/user-namespace
Pull user-namespace fix from Eric Biederman:
"Eric Windish recently reported a really bug that allows mounting fresh
copies of proc and sysfs when it really should not be allowed. The
code attempted to verify that proc and sysfs were fully visible but
there is a test missing to ensure that the root of the filesystem is
visible. Doh!
The following patch fixes that.
This fixes a containment issue that the docker folks are seeing"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace:
mnt: Fix fs_fully_visible to verify the root directory is visible
Linus Torvalds [Sat, 9 May 2015 21:59:05 +0000 (14:59 -0700)]
Merge branch 'irq-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"Two patches from the irq departement:
- a simple fix to make dummy_irq_chip usable for wakeup scenarios
- removal of the gic arch_extn hackery. Now that all users are
converted we really want to get rid of the interface so people wont
come up with new use cases"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqchip: gic: Drop support for gic_arch_extn
genirq: Set IRQCHIP_SKIP_SET_WAKE flag for dummy_irq_chip
Linus Torvalds [Sat, 9 May 2015 21:57:49 +0000 (14:57 -0700)]
Merge branch 'timers-urgent-for-linus' of git://git./linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
"A simple fix to actually shut down a detached device instead of
keeping it active"
* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clockevents: Shutdown detached clockevent device
Rusty Russell [Fri, 8 May 2015 18:09:52 +0000 (03:39 +0930)]
m32r: make flush_cpumask non-volatile.
We cast away the volatile, but really, why make it volatile at all?
We already do a mb() inside the cpumask_empty() loop.
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Eric W. Biederman [Fri, 8 May 2015 21:36:50 +0000 (16:36 -0500)]
mnt: Fix fs_fully_visible to verify the root directory is visible
This fixes a dumb bug in fs_fully_visible that allows proc or sys to
be mounted if there is a bind mount of part of /proc/ or /sys/ visible.
Cc: stable@vger.kernel.org
Reported-by: Eric Windisch <ewindisch@docker.com>
Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Linus Torvalds [Sat, 9 May 2015 04:39:12 +0000 (21:39 -0700)]
Merge branch 'for-linus' of git://git./linux/kernel/git/viro/vfs
Pull vfs fixes from Al Viro:
"A couple of fixes for bugs caught while digging in fs/namei.c. The
first one is this cycle regression, the second is 3.11 and later"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
path_openat(): fix double fput()
namei: d_is_negative() should be checked before ->d_seq validation
Al Viro [Sat, 9 May 2015 02:53:15 +0000 (22:53 -0400)]
path_openat(): fix double fput()
path_openat() jumps to the wrong place after do_tmpfile() - it has
already done path_cleanup() (as part of path_lookupat() called by
do_tmpfile()), so doing that again can lead to double fput().
Cc: stable@vger.kernel.org # v3.11+
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Al Viro [Thu, 7 May 2015 23:24:57 +0000 (19:24 -0400)]
namei: d_is_negative() should be checked before ->d_seq validation
Fetching ->d_inode, verifying ->d_seq and finding d_is_negative() to
be true does *not* mean that inode we'd fetched had been NULL - that
holds only while ->d_seq is still unchanged.
Shift d_is_negative() checks into lookup_fast() prior to ->d_seq
verification.
Reported-by: Steven Rostedt <rostedt@goodmis.org>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Linus Torvalds [Sat, 9 May 2015 03:59:02 +0000 (20:59 -0700)]
Merge branch 'for-linus-4.1' of git://git./linux/kernel/git/mason/linux-btrfs
Pull btrfs fix from Chris Mason:
"When an arm user reported crashes near page_address(page) in my new
code, it became clear that I can't be trusted with GFP masks. Filipe
beat me to the patch, and I'll just be in the corner with my dunce cap
on"
* 'for-linus-4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs:
Btrfs: fix wrong mapping flags for free space inode
Linus Torvalds [Sat, 9 May 2015 03:38:21 +0000 (20:38 -0700)]
Merge tag 'dm-4.1-fixes-2' of git://git./linux/kernel/git/device-mapper/linux-dm
Pull device mapper fixes from Mike Snitzer:
"Two additional fixes for changes introduced via DM during the 4.1
merge window.
The first reverts a dm-crypt change that wasn't correct. The second
fixes a device format regression that impacted userspace"
* tag 'dm-4.1-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
init: fix regression by supporting devices with major:minor:offset format
Revert "dm crypt: fix deadlock when async crypto algorithm returns -EBUSY"
Linus Torvalds [Sat, 9 May 2015 02:49:35 +0000 (19:49 -0700)]
Merge branch 'for-linus' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
"A collection of fixes since the merge window;
- fix for a double elevator module release, from Chao Yu. Ancient bug.
- the splice() MORE flag fix from Christophe Leroy.
- a fix for NVMe, fixing a patch that went in in the merge window.
From Keith.
- two fixes for blk-mq CPU hotplug handling, from Ming Lei.
- bdi vs blockdev lifetime fix from Neil Brown, fixing and oops in md.
- two blk-mq fixes from Shaohua, fixing a race on queue stop and a
bad merge issue with FUA writes.
- division-by-zero fix for writeback from Tejun.
- a block bounce page accounting fix, making sure we inc/dec after
bouncing so that pre/post IO pages match up. From Wang YanQing"
* 'for-linus' of git://git.kernel.dk/linux-block:
splice: sendfile() at once fails for big files
blk-mq: don't lose requests if a stopped queue restarts
blk-mq: fix FUA request hang
block: destroy bdi before blockdev is unregistered.
block:bounce: fix call inc_|dec_zone_page_state on different pages confuse value of NR_BOUNCE
elevator: fix double release of elevator module
writeback: use |1 instead of +1 to protect against div by zero
blk-mq: fix CPU hotplug handling
blk-mq: fix race between timeout and CPU hotplug
NVMe: Fix VPD B0 max sectors translation
Linus Torvalds [Sat, 9 May 2015 02:42:59 +0000 (19:42 -0700)]
Merge tag 'gpio-v4.1-2' of git://git./linux/kernel/git/linusw/linux-gpio
Pull GPIO fixes from Linus Walleij:
"Here is a bunch of GPIO fixes that I collected since -rc1, nothing
controversial, nothing special:
- fix a memory leak for GPIO hotplug.
- fix a signedness bug in the ACPI GPIO pin validation.
- driver fixes: Qualcomm SPMI and OMAP MPUIO IRQ issues"
* tag 'gpio-v4.1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-gpio:
gpio: omap: Fix regression for MPUIO interrupts
gpio: sysfs: fix memory leaks and device hotplug
pinctrl: qcom-spmi-gpio: Fix input value report
pinctrl: qcom-spmi-gpio: Fix output type configuration
gpiolib: change gpio pin from unsigned to signed in acpi callback
Linus Torvalds [Sat, 9 May 2015 02:34:35 +0000 (19:34 -0700)]
Merge tag 'mmc-4.1-rc2' of git://git.linaro.org/people/ulf.hansson/mmc
Pull MMC fixes from Ulf Hansson:
"MMC core:
- Don't access RPMB partitions for normal read/write
- Fix hibernation restore sequence
MMC host:
- dw_mmc: Fix card detection for non removable cards
- dw_mmc: Fix sglist issue in 32-bit mode
- sh_mmcif: Fix timeout value for command request"
* tag 'mmc-4.1-rc2' of git://git.linaro.org/people/ulf.hansson/mmc:
mmc: dw_mmc: dw_mci_get_cd check MMC_CAP_NONREMOVABLE
mmc: dw_mmc: init desc in dw_mci_idmac_init
mmc: card: Don't access RPMB partitions for normal read/write
mmc: sh_mmcif: Fix timeout value for command request
mmc: core: add missing pm event in mmc_pm_notify to fix hib restore
Linus Torvalds [Sat, 9 May 2015 01:22:05 +0000 (18:22 -0700)]
Merge tag 'trace-fixes-v4.1-rc2' of git://git./linux/kernel/git/rostedt/linux-trace
Pull tracing fix from Steven Rostedt:
"The newly added ftrace_print_array_seq() function had a bug in it.
Luckily, the only user of it didn't make the 4.1 merge window.
But the helper function should be fixed before 4.2 when the users
start coming in"
* tag 'trace-fixes-v4.1-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
tracing: Make ftrace_print_array_seq compute buf_len
Javier Martinez Canillas [Fri, 8 May 2015 18:15:16 +0000 (03:15 +0900)]
ARM: dts: Add keep-power-in-suspend to WiFi SDIO node for exynos5250-snow
The Marvell mwifiex driver prevents the system to enter into a suspend
state if the card power is not preserved during a suspend/resume cycle.
So Suspend-to-RAM and Suspend-to-idle are failing on Exynos5250 Snow.
Add the keep-power-in-suspend Power Management property to the SDIO/MMC
node so the mwifiex suspend handler doesn't fail and the system is able
to enter into a suspend state.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Reviewed-by: Doug Anderson <dianders@chromium.org>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Abhilash Kesavan [Fri, 8 May 2015 18:11:21 +0000 (03:11 +0900)]
ARM: dts: Fix typo in trip point temperature for exynos5420/5440
Remove the extra zero in the "cpu-crit-0" trip point for exynos5420
and exynos5440.
Signed-off-by: Abhilash Kesavan <a.kesavan@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Markus Reichl [Fri, 8 May 2015 18:05:51 +0000 (03:05 +0900)]
ARM: dts: add 'rtc_src' clock to rtc node for exynos4412-odroid boards
The Exynos4412 SoC has a s3c6410 RTC where the source clock
is now a mandatory property.
This patch fixes probe failure of s3c-rtc on Odroid-X2/U2/U3 boards.
Signed-off-by: Markus Reichl <m.reichl@fivetechno.de>
Tested-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Tested-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Javier Martinez Canillas [Fri, 8 May 2015 17:33:42 +0000 (02:33 +0900)]
ARM: dts: Make DP a consumer of DISP1 power domain on Exynos5420
Commit
ea08de16eb1b ("ARM: dts: Add DISP1 power domain for exynos5420")
added a device node for the Exynos5420 DISP1 power domain but dit not
make the DP controller a consumer of that power domain.
This causes an "Unhandled fault: imprecise external abort" error if the
exynos-dp driver tries to access the DP controller registers and the PD
was turned off. This lead to a kernel panic and a complete system hang.
Make the DP controller device node a consumer of the DISP1 power domain
to ensure that the PD is turned on when the exynos-dp driver is probed.
Fixes: ea08de16eb1b ("ARM: dts: Add DISP1 power domain for exynos5420")
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Signed-off-by: Kukjin Kim <kgene@kernel.org>
Baruch Siach [Tue, 28 Apr 2015 10:59:43 +0000 (13:59 +0300)]
MAINTAINERS: add Conexant Digicolor machines entry
This adds Baruch as the maintainer for the Digicolor platform.
Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Dinh Nguyen [Mon, 20 Apr 2015 19:13:12 +0000 (14:13 -0500)]
MAINTAINERS: socfpga: update the git repo for SoCFPGA
The git tree at rocketboards.org is going away. Update the entry to reflect
the address of the new location. Also add an entry for all the socfpga_*
dts files.
Signed-off-by: Dinh Nguyen <dinguyen@opensource.altera.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Mario Kleiner [Mon, 4 May 2015 04:29:44 +0000 (06:29 +0200)]
drm/tegra: Don't use vblank_disable_immediate on incapable driver.
Tegra would not only need a hardware vblank counter that
increments at leading edge of vblank, but also support
for instantaneous high precision vblank timestamp queries, ie.
a proper implementation of dev->driver->get_vblank_timestamp().
Without these, there can be off-by-one errors during vblank
disable/enable if the scanout is inside vblank at en/disable
time, and additionally clients will never see any useable
vblank timestamps when querying via drmWaitVblank ioctl. This
would negatively affect swap scheduling under X11 and Wayland.
Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Dave Airlie [Fri, 8 May 2015 10:52:51 +0000 (20:52 +1000)]
Merge tag 'drm-amdkfd-fixes-2015-05-07' of git://people.freedesktop.org/~gabbayo/linux into drm-fixes
- Add missing initialization of SDMA vm register when creating an SDMA queue
- Don't report local memory size, as we don't support local memory allocation
yet.
- Allow to unregister process with exisiting queues. Until now we blocked
it with BUG_ON, which was also an error by itself.
* tag 'drm-amdkfd-fixes-2015-05-07' of git://people.freedesktop.org/~gabbayo/linux:
drm/amdkfd: Initialize sdma vm when creating sdma queue
drm/amdkfd: Don't report local memory size
drm/amdkfd: allow unregister process with queues
Dave Airlie [Fri, 8 May 2015 10:52:21 +0000 (20:52 +1000)]
Merge branch 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Mostly stability fixes for UVD and VCE, plus a few other bug and regression
fixes.
* 'drm-fixes-4.1' of git://people.freedesktop.org/~agd5f/linux:
drm/radeon: stop trying to suspend UVD sessions
drm/radeon: more strictly validate the UVD codec
drm/radeon: make UVD handle checking more strict
drm/radeon: make VCE handle check more strict
drm/radeon: fix userptr lockup
drm/radeon: fix userptr BO unpin bug v3
drm/radeon: don't setup audio on asics that don't support it
drm/radeon: disable semaphores for UVD V1 (v2)
Zhangfei Gao [Tue, 5 May 2015 08:54:49 +0000 (16:54 +0800)]
mmc: dw_mmc: dw_mci_get_cd check MMC_CAP_NONREMOVABLE
When non-removable is used for emmc, MMC_CAP_NONREMOVABLE should
also be checked, otherwise detection fail since present=0
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Zhangfei Gao [Thu, 30 Apr 2015 14:16:28 +0000 (22:16 +0800)]
mmc: dw_mmc: init desc in dw_mci_idmac_init
Set 0 to des1 in 32bit case.
Otherwise the random value of des1 will be used in
dw_mci_translate_sglist: IDMAC_SET_BUFFER1_SIZE(desc, length)
Signed-off-by: Fei Wang <w.f@huawei.com>
Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org>
Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Linus Torvalds [Thu, 7 May 2015 22:58:00 +0000 (15:58 -0700)]
Merge tag 'pm+acpi-4.1-rc3' of git://git./linux/kernel/git/rafael/linux-pm
Pull power management and ACPI fixes from Rafael Wysocki:
"These include three regression fixes (PCI resources management,
ACPI/PNP device enumeration, ACPI SBS on MacBook) and two ACPI
documentation fixes related to GPIO.
Specifics:
- Fix for a PCI resources management regression introduced during the
4.0 cycle and related to the handling of ACPI resources'
Producer/Consumer flags that turn out to be useless (Jiang Liu)
- Fix for a MacBook regression related to the Smart Battery Subsystem
(SBS) driver causing various problems (stalls on boot, failure to
detect or report battery) to happen and introduced during the 3.18
cycle (Chris Bainbridge)
- Fix for an ACPI/PNP device enumeration regression introduced during
the 3.16 cycle caused by failing to include two PNP device IDs into
the list of IDs that PNP device objects need to be created for
(Witold Szczeponik)
- Fixes for two minor mistakes in the ACPI GPIO properties
documentation (Antonio Ospite, Rafael J Wysocki)"
* tag 'pm+acpi-4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI / PNP: add two IDs to list for PNPACPI device enumeration
ACPI / documentation: Fix ambiguity in the GPIO properties document
ACPI / documentation: fix a sentence about GPIO resources
ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook
x86/PCI/ACPI: Make all resources except [io 0xcf8-0xcff] available on PCI bus
Rafael J. Wysocki [Thu, 7 May 2015 19:24:34 +0000 (21:24 +0200)]
Merge branches 'acpi-resources', 'acpi-battery', 'acpi-doc' and 'acpi-pnp'
* acpi-resources:
x86/PCI/ACPI: Make all resources except [io 0xcf8-0xcff] available on PCI bus
* acpi-battery:
ACPI / SBS: Add 5 us delay to fix SBS hangs on MacBook
* acpi-doc:
ACPI / documentation: Fix ambiguity in the GPIO properties document
ACPI / documentation: fix a sentence about GPIO resources
* acpi-pnp:
ACPI / PNP: add two IDs to list for PNPACPI device enumeration
Linus Torvalds [Thu, 7 May 2015 18:18:34 +0000 (11:18 -0700)]
Merge tag 'for-f2fs-4.1-rc3' of git://git./linux/kernel/git/jaegeuk/f2fs
Pull f2fs fixes from Jaegeuk Kim:
"Fix a performance regression and a bug"
* tag 'for-f2fs-4.1-rc3' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
f2fs: fix wrong error hanlder in f2fs_follow_link
Revert "f2fs: enhance multi-threads performance"
Fabio Estevam [Tue, 5 May 2015 17:35:49 +0000 (14:35 -0300)]
ARM: multi_v7_defconfig: Select more FSL SoCs
Select IMX50, IMX6SX and LS1021A SoC support.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Nicolas Ferre [Wed, 29 Apr 2015 09:57:18 +0000 (11:57 +0200)]
MAINTAINERS: replace an AT91 maintainer
As some help is needed from an active maintainer, replace Andrew Victor
by Alexandre Belloni in the ARM/Atmel MAINTAINERS' entry (aka AT91).
Add an entry to the CREDITS file.
Thanks Andrew for the great role you played during the early days of this
product family.
Signed-off-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Andrew Victor <linux@maxim.org.za>
Acked-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Mark Salter [Tue, 28 Apr 2015 17:09:32 +0000 (13:09 -0400)]
drivers: CCI: fix used_mask init in validate_group()
Currently in validate_group(), there is a static initializer
for fake_pmu.used_mask which is based on CPU_BITS_NONE but
the used_mask array size is based on CCI_PMU_MAX_HW_EVENTS.
CCI_PMU_MAX_HW_EVENTS is not based on NR_CPUS, so CPU_BITS_NONE
is not correct and will cause a build failure if NR_CPUS
is set high enough to make CPU_BITS_NONE larger than used_mask.
Reviewed-by: Mark Rutland <mark.rutland@arm.com>
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Arnd Bergmann [Thu, 7 May 2015 16:28:04 +0000 (18:28 +0200)]
Merge tag 'stericsson-fixes-v4.1' of git://git./linux/kernel/git/linusw/linux-stericsson into fixes
Merge "Ux500 fixes" from Linus Walleij:
This fixes an MMC/SD configuration issue present for some time
in the Ux500 DT but triggered by proper error handling in v4.1-rc1.
* tag 'stericsson-fixes-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-stericsson:
ARM: ux500: Enable GPIO regulator for SD-card for snowball
ARM: ux500: Enable GPIO regulator for SD-card for HREF boards
ARM: ux500: Move GPIO regulator for SD-card into board DTSs
Arnd Bergmann [Thu, 7 May 2015 16:26:48 +0000 (18:26 +0200)]
Merge tag 'renesas-fixes-for-v4.1' of git://git./linux/kernel/git/horms/renesas into fixes
Merge "Renesas ARM Based SoC Fixes for v4.1" from Simon Horman:
* Fix adv7511 IRQ sensing on koelsch board
* tag 'renesas-fixes-for-v4.1' of git://git.kernel.org/pub/scm/linux/kernel/git/horms/renesas:
ARM: shmobile: koelsch: Fix adv7511 IRQ sensing
Arnd Bergmann [Thu, 7 May 2015 16:25:38 +0000 (18:25 +0200)]
Merge tag 'omap-for-v4.1/fixes-rc1' of git://git./linux/kernel/git/tmlind/linux-omap into fixes
Merge "omap fixes against v4.1-rc1" from Tony Lindgren:
Fixes for omaps, mostly a fix for power power consumption
creeping up during idle, and two l3-noc device fixes:
- Fix power consumption creeping up with I2C4 staying on
- Fix n900 microphone bias voltages
- Fix dra7 l3-noc for host clock
- Fix omap5 l3-noc id address decoding
The rest are all just minor dts fixes:
- Fix changed EXTCON_USB_GPIO_USB in defconfig
- Fix missing isp and iva #iommu-cells property
- Various beagle x15 dts fixes for pre-production changes
- Fix am437x-sk display dts entries
* tag 'omap-for-v4.1/fixes-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
bus: omap_l3_noc: Fix master id address decoding for OMAP5
bus: omap_l3_noc: Fix offset for DRA7 CLK1_HOST_CLK1_2 instance
ARM: dts: dra7: Fix efuse register size for ABB
ARM: dts: am57xx-beagle-x15: Switch GPIO fan number
ARM: dts: am57xx-beagle-x15: Switch UART mux pins
ARM: dts: am437x-sk: reduce col-scan-delay-us
ARM: dts: am437x-sk: fix for new newhaven display module revision
ARM: dts: am57xx-beagle-x15: Fix RTC aliases
ARM: dts: am57xx-beagle-x15: Fix IRQ type for mcp7941x
ARM: dts: omap3: Add #iommu-cells to isp and iva iommu
ARM: omap2plus_defconfig: Enable EXTCON_USB_GPIO
ARM: dts: OMAP3-N900: Add microphone bias voltages
ARM: OMAP2+: Fix omap off idle power consumption creeping up
Arnd Bergmann [Thu, 7 May 2015 16:24:32 +0000 (18:24 +0200)]
Merge tag 'arm-soc/for-4.1/maintainers' of github.com/broadcom/stblinux into fixes
Merge "MAINTAINERS update for Broadcom SoCs for 4.1 #2" from Florian Fainelli:
This pull request contains 3 changes to the MAINTAINERS file for Broadcom SoCs:
- add Ray and Scott for mach-bcm
- remove Christian for mach-bcm
- remove Marc for brcmstb
* tag 'arm-soc/for-4.1/maintainers' of http://github.com/broadcom/stblinux:
MAINTAINERS: Update brcmstb entry
MAINTAINERS: Remove Christian Daudt for mach-bcm
MAINTAINERS: Update mach-bcm maintainers list
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