| Commit message (Collapse) | Author | Age | Files | Lines |
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The platform file for the Freecale P1022DS reference board is not freeing
the ioremap() mapping of the PIXIS and global utilities nodes it creates.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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fsl-lbc driver requires an interrupt to bind to localbus device.
Populate 85xx boards' dts trees with lbc interrupt info.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Lei Xu <B33228@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Lei Xu <B33228@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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FSL PCIe controller can act as agent(EP) or host(RC). Under Agent(EP) mode
the controller will be configured by the host system. So its not required
to be registered with the PCI(e) sub-system. We only register the
controller if its configured in host(RC) mode.
Signed-off-by: Vivek Mahajan <vivek.mahajan@freescale.com>
Signed-off-by: Prabhakar Kushwaha <prabhakar@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Add support for the ePAPR-compliant Freescale hypervisor (aka "Topaz") on
the Freescale P3041DS, P4080DS, and P5020DS reference boards.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Add functions to restart and halt the current partition when running under
the Freescale hypervisor. These functions should be assigned to various
function pointers of the ppc_md structure during the .probe() function for
the board:
ppc_md.restart = fsl_hv_restart;
ppc_md.power_off = fsl_hv_halt;
ppc_md.halt = fsl_hv_halt;
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The Freescale ePAPR reference hypervisor provides interrupt controller
services via a hypercall interface, instead of emulating the MPIC
controller. This is called the VMPIC.
The ePAPR "virtual interrupt controller" provides interrupt controller
services for external interrupts. External interrupts received by a
partition can come from two sources:
- Hardware interrupts - hardware interrupts come from external
interrupt lines or on-chip I/O devices.
- Virtual interrupts - virtual interrupts are generated by the hypervisor
as part of some hypervisor service or hypervisor-created virtual device.
Both types of interrupts are processed using the same programming model and
same set of hypercalls.
Signed-off-by: Ashish Kalra <ashish.kalra@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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ePAPR hypervisors provide operating system services via a "hypercall"
interface. The following steps need to be performed to make an hcall:
1. Load r11 with the hcall number
2. Load specific other registers with parameters
3. Issue instrucion "sc 1"
4. The return code is in r3
5. Other returned parameters are in other registers.
To provide this service to the kernel, these steps are wrapped in inline
assembly functions. Standard ePAPR hcalls are in epapr_hcalls.h, and
Freescale extensions are in fsl_hcalls.h.
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Move irq_choose_cpu() into arch/powerpc/kernel/irq.c so that it can be used
by other PIC drivers. The function is not MPIC-specific.
Signed-off-by: Stuart Yoder <stuart.yoder@freescale.com>
Signed-off-by: Timur Tabi <timur@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Only 32-bit SoCs have a QUICC Engine so limit the config option to PPC32.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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We need the FSL specific header fixup code on both 32-bit and 64-bit
platforms so just move the code into pci-common.c.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The P1023 processor is an e500v2 based SoC that utilizes the DPAA
networking architecture. This adds basic board support for non-DPAA
functionality (device tree, board file, etc).
Signed-off-by: Roy Zang <tie-fei.zang@freescale.com>
Signed-off-by: Haiying Wang <Haiying.Wang@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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We expect this is actually faster, and we end up needing more space than we
can get from the SPRGs in some instances. This is also useful when running
as a guest OS - SPRGs4-7 do not have guest versions.
8 slots are allocated in thread_info for this even though we only actually
use 4 of them - this allows space for future code to have more scratch
space (and we know we'll need it for things like hugetlb).
Signed-off-by: Ashish Kalra <Ashish.Kalra@freescale.com>
Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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In cases like when the platform is used under hypervisor we will NOT
have an MPIC controller but still want doorbells setup.
Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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We fixup every FSL PCIe Root Complex we need to fixup a few things.
Rather than adding every device under the sun we move to just matching
only on the vendor (PCI_VENDOR_ID_FREESCALE) and than check that we are
a PCIe controller in host mode in the fixup.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Several changes on PCIe support on P3041DS/P4080DS/P5020DS boards:
* Add support for "fsl,qoriq-pcie-v2.2" needed by P3041 & P5020
* Removed support for setting primary_phb_addr as we have no ISA need
* Add PCI controller to of_platform_bus_probe (for EDAC)
* Cleanup building w/SWIOTLB off on P4080DS (not stricly PCIe related)
Signed-off-by: Kai.Jiang <Kai.Jiang@freescale.com>
Signed-off-by: Laurentiu TUDOR <Laurentiu.Tudor@freescale.com>
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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* Added BSD dual-license
* Moved mpic-parent to root so we dont need to duplicate everywhere
* Added next level cache from L2 to CPC
* Moved to 4-cell MPIC interrupt properties
* Added 3 MSI banks
* Added numerous missing nodes: soc-sram-error, guts, pins, clockgen,
rcpm, sfp, serdes, etc.
* Reworked PCIe interrupts to be at virtual bridge level
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Add basic device tree for P3041DS board. This device tree excludes
support for DPAA and RapidIO nodes.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Add basic device tree for P5020DS board. This device tree excludes
support for DPAA and RapidIO nodes.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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The e500mc and e5500 based cores are only available on corenet based
SoCs. We use this name for the P204x, P3040, P4040, P4080, P50x0 SoCs
and any future processors in these families.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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Rather than trying to use the core name we use corenet to distinquish
the platform/core combo. corenet64 will be a 64-bit kernel build and
we'll add a new defconfig for corenet32 for a 32-bit platforms.
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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doorbell type is defined as bits 32:36 so should be shifted by 63-36 =
27 rather than 28.
We never noticed this bug as we've only every used type PPC_DBELL = 0.
Signed-off-by: Michael Neuling <mikey@neuling.org>
Acked-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Support compilation of mpic.c with DEBUG defined, as now we have irq_desc and
not irq number.
Signed-off-by: Dmitry Eremin-Solenikov <dbaryshkov@gmail.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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On many platforms (including pSeries), smp_ops->message_pass is always
smp_muxed_ipi_message_pass. This changes arch/powerpc/kernel/smp.c so
that if smp_ops->message_pass is NULL, it calls smp_muxed_ipi_message_pass
directly.
This means that a platform doesn't need to set both .message_pass and
.cause_ipi, only one of them. It is a slight performance improvement
in that it gets rid of an indirect function call at the expense of a
predictable conditional branch.
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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smp_release_cpus() waits for all cpus (including the bootcpu) due to an
off-by-one count on boot_cpu_count (which is all CPUs). This patch replaces
that with spinning_secondaries (which is all secondary CPUs).
Signed-off-by: Matt Evans <matt@ozlabs.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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Before if we didn't support or enable HW table walk we'd get a messaage
like:
MMU: Book3E Page Tables Disabled
Which is a bit misleading. Now it will say:
MMU: Book3E HW tablewalk not supported
Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen
* 'stable/bug.fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/xen:
xen: off by one errors in multicalls.c
xen: use the trigger info we already have to choose the irq handler
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b->args[] has MC_ARGS elements, so the comparison here should be
">=" instead of ">". Otherwise we read past the end of the array
one space.
CC: stable@kernel.org
Signed-off-by: Dan Carpenter <error27@gmail.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
x86/amd-iommu: Fix boot crash with hidden PCI devices
x86/amd-iommu: Use only per-device dma_ops
x86/amd-iommu: Fix 3 possible endless loops
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Some PCIe cards ship with a PCI-PCIe bridge which is not
visible as a PCI device in Linux. But the device-id of the
bridge is present in the IOMMU tables which causes a boot
crash in the IOMMU driver.
This patch fixes by removing these cards from the IOMMU
handling. This is a pure -stable fix, a real fix to handle
this situation appriatly will follow for the next merge
window.
Cc: stable@kernel.org # > 2.6.32
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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Unfortunatly there are systems where the AMD IOMMU does not
cover all devices. This breaks with the current driver as it
initializes the global dma_ops variable. This patch limits
the AMD IOMMU to the devices listed in the IVRS table fixing
DMA for devices not covered by the IOMMU.
Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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The driver contains several loops counting on an u16 value
where the exit-condition is checked against variables that
can have values up to 0xffff. In this case the loops will
never exit. This patch fixed 3 such loops.
Cc: stable@kernel.org
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
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* 'kvm-updates/3.0' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: Initialize kvm before registering the mmu notifier
KVM: x86: use proper port value when checking io instruction permission
KVM: add missing void __user * cast to access_ok() call
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Commit f6511935f42 moved the permission check for io instructions
to the ->check_perm callback. It failed to copy the port value from RDX
register for string and "in,out ax,dx" instructions.
Fix it by reading RDX register at decode stage when appropriate.
Fixes FC8.32 installation.
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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_sdata needs to be declared in the linker script now as of commit
a2d063ac216c ("extable, core_kernel_data(): Make sure all archs define
_sdata")
Signed-off-by: David Howells <dhowells@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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die_if_no_fixup() shouldn't use get_user() as it doesn't call set_fs() to
indicate that it wants to probe a kernel address. Instead it should use
probe_kernel_read().
This fixes the problem of gdb seeing SIGILL rather than SIGTRAP when hitting
the KGDB special breakpoint upon SysRq+g being seen. The problem was that
die_if_no_fixup() was failing to read the opcode of the instruction that caused
the exception, and thus not fixing up the exception.
This caused gdb to get a S04 response to the $? request in its remote protocol
rather than S05 - which would then cause it to continue with $C04 rather than
$c in an attempt to pass the signal onto the inferior process. The kernel,
however, does not support $Cnn, and so objects by returning an E22 response,
indicating an error. gdb does not expect this and prints:
warning: Remote failure reply: E22
and then returns to the gdb command prompt unable to continue.
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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One of the kernel debugger cacheflush variants escaped proper testing. Two of
the labels are wrong, being derived from the code that was copied to construct
the variant.
The first label results in the following assembler message:
AS arch/mn10300/mm/cache-dbg-flush-by-reg.o
arch/mn10300/mm/cache-dbg-flush-by-reg.S: Assembler messages:
arch/mn10300/mm/cache-dbg-flush-by-reg.S:123: Error: symbol `debugger_local_cache_flushinv_no_dcache' is already defined
And the second label results in the following linker message:
arch/mn10300/mm/built-in.o:(.text+0x1d39): undefined reference to `mn10300_local_icache_inv_range_reg_end'
arch/mn10300/mm/built-in.o:(.text+0x1d39): relocation truncated to fit: R_MN10300_PCREL16 against undefined symbol `mn10300_local_icache_inv_range_reg_end'
To test this file the following configuration pieces must be set:
CONFIG_AM34=y
CONFIG_MN10300_CACHE_WBACK=y
CONFIG_MN10300_DEBUGGER_CACHE_FLUSH_BY_REG=y
CONFIG_MN10300_CACHE_MANAGE_BY_REG=y
CONFIG_AM34_HAS_CACHE_SNOOP=n
Signed-off-by: David Howells <dhowells@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] fix kvm defines for 31 bit compile
[S390] use generic RCU page-table freeing code
[S390] qdio: Split SBAL entry flags
[S390] kvm-s390: fix stfle facilities numbers >=64
[S390] kvm-s390: Fix host crash on misbehaving guests
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KVM is not available for 31 bit but the KVM defines cause warnings:
arch/s390/include/asm/pgtable.h: In function 'ptep_test_and_clear_user_dirty':
arch/s390/include/asm/pgtable.h:817: warning: integer constant is too large for 'unsigned long' type
arch/s390/include/asm/pgtable.h:818: warning: integer constant is too large for 'unsigned long' type
arch/s390/include/asm/pgtable.h: In function 'ptep_test_and_clear_user_young':
arch/s390/include/asm/pgtable.h:837: warning: integer constant is too large for 'unsigned long' type
arch/s390/include/asm/pgtable.h:838: warning: integer constant is too large for 'unsigned long' type
Add 31 bit versions of the KVM defines to remove the warnings.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Replace the s390 specific rcu page-table freeing code with the
generic variant. This requires to duplicate the definition for the
struct mmu_table_batch as s390 does not use the generic tlb flush
code.
While we are at it remove the restriction that page table fragments
can not be reused after a single fragment has been freed with rcu
and split out allocation and freeing of page tables with pgstes.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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The qdio SBAL entry flag is made-up of four different values that are
independent of one another. Some of the bits are reserved by the
hardware and should not be changed by qdio. Currently all four values
are overwritten since the SBAL entry flag is defined as an u32.
Split the SBAL entry flag into four u8's as defined by the hardware
and don't touch the reserved bits.
Signed-off-by: Jan Glauber <jang@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Currently KVM masks out the known good facilities only for the first
double word, but passed the 2nd double word without filtering. This
breaks some code on newer systems:
[ 0.593966] ------------[ cut here ]------------
[ 0.594086] WARNING: at arch/s390/oprofile/hwsampler.c:696
[ 0.594213] Modules linked in:
[ 0.594321] Modules linked in:
[ 0.594439] CPU: 0 Not tainted 3.0.0-rc1 #46
[ 0.594564] Process swapper (pid: 1, task: 00000001effa8038, ksp: 00000001effafab8)
[ 0.594735] Krnl PSW : 0704100180000000 00000000004ab89a (hwsampler_setup+0x75a/0x7b8)
[ 0.594910] R:0 T:1 IO:1 EX:1 Key:0 M:1 W:0 P:0 AS:0 CC:1 PM:0 EA:3
[ 0.595120] Krnl GPRS: ffffffff00000000 00000000ffffffea ffffffffffffffea 00000000004a98f8
[ 0.595351] 00000000004aa002 0000000000000001 000000000080e720 000000000088b9f8
[ 0.595522] 000000000080d3e8 0000000000000000 0000000000000000 000000000080e464
[ 0.595725] 0000000000000000 00000000005db198 00000000004ab3a2 00000001effafd98
[ 0.595901] Krnl Code: 00000000004ab88c: c0e5000673ca brasl %r14,57a020
[ 0.596071] 00000000004ab892: a7f4fc77 brc 15,4ab180
[ 0.596276] 00000000004ab896: a7f40001 brc 15,4ab898
[ 0.596454] >00000000004ab89a: a7c8ffa1 lhi %r12,-95
[ 0.596657] 00000000004ab89e: a7f4fc71 brc 15,4ab180
[ 0.596854] 00000000004ab8a2: a7f40001 brc 15,4ab8a4
[ 0.597029] 00000000004ab8a6: a7f4ff22 brc 15,4ab6ea
[ 0.597230] 00000000004ab8aa: c0200011009a larl %r2,6cb9de
[ 0.597441] Call Trace:
[ 0.597511] ([<00000000004ab3a2>] hwsampler_setup+0x262/0x7b8)
[ 0.597676] [<0000000000875812>] oprofile_arch_init+0x32/0xd0
[ 0.597834] [<0000000000875788>] oprofile_init+0x28/0x74
[ 0.597991] [<00000000001001be>] do_one_initcall+0x3a/0x170
[ 0.598151] [<000000000084fa22>] kernel_init+0x142/0x1ec
[ 0.598314] [<000000000057db16>] kernel_thread_starter+0x6/0xc
[ 0.598468] [<000000000057db10>] kernel_thread_starter+0x0/0xc
[ 0.598606] Last Breaking-Event-Address:
[ 0.598707] [<00000000004ab896>] hwsampler_setup+0x756/0x7b8
[ 0.598863] ---[ end trace ce3179037f4e3e5b ]---
So lets also mask the 2nd double word. Facilites 66,76,76,77 should be fine.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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commit 9ff4cfb3fcfd48b49fdd9be7381b3be340853aa4 ([S390] kvm-390: Let
kernel exit SIE instruction on work) fixed a problem of commit
commit cd3b70f5d4d82f85d1e1d6e822f38ae098cf7c72 ([S390] virtualization
aware cpu measurement) but uncovered another one.
If a kvm guest accesses guest real memory that doesnt exist, the
page fault handler calls the sie hook, which then rewrites
the return psw from sie_inst to either sie_exit or sie_reenter.
On return, the page fault handler will then detect the wrong access
as a kernel fault causing a kernel oops in sie_reenter or sie_exit.
We have to add these two addresses to the exception table to allow
graceful exits.
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6
* 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6: (21 commits)
ARM: OMAP4: MMC: increase delay for pbias
arm: omap2plus: move NAND_BLOCK_SIZE out of boards
omap4: hwmod: Enable the keypad
omap3: Free Beagle rev gpios when they are read, so others can read them later
arm: omap3: beagle: Ensure msecure is mux'd to be able to set the RTC
omap: rx51: Don't power up speaker amplifier at bootup
omap: rx51: Set regulator V28_A always on
ARM: OMAP4: MMC: no regulator off during probe for eMMC
arm: omap2plus: fix ads7846 pendown gpio request
ARM: OMAP2: Add missing iounmap in omap4430_phy_init
ARM: omap4: Pass core and wakeup mux tables to omap4_mux_init
ARM: omap2+: mux: Allow board mux settings to be NULL
OMAP4: fix return value of omap4_l3_init
OMAP: iovmm: fix SW flags passed by user
arch/arm/mach-omap1/dma.c: Invert calls to platform_device_put and platform_device_del
OMAP2+: mux: fix compilation warnings
OMAP: SRAM: Fix warning: format '%08lx' expects type 'long unsigned int'
arm: omap3: cm-t3517: fix section mismatch warning
OMAP2+: Fix 9 section mismatch(es) warnings from mach-omap2/built-in.o
ARM: OMAP2: Add missing include of linux/gpio.h
...
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4 micro seconds is not enough for PBIAS if MMC regulator is
enabled from MMC regulator OFF.
Increase the delay for PBIAS to stabilize.
Wait for PBIAS and timeout if not.
Resolves MMC/SD failure on OMAP4
"Pbias Voltage is not same as LDO"
Signed-off-by: Balaji T K <balajitk@ti.com>
Acked-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Several boards defining mtd partitions also defined NAND_BLOCK_SIZE as
SZ_128K. Move the define to common-board-devices.h
This removes multiple defines of NAND_BLOCK_SIZE.
Signed-off-by: Igor Grinberg <grinberg@compulab.co.il>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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Commit 407a6888f7362cb3dabe69ea6d9dcf3c750dc56a (OMAP4: hwmod data:
Add AESS, McPDM, bandgap, counter_32k, MMC, KBD, ISS & IPU) added the
entry for keypad, but did not enable it.
Enable the keypad in the hwmod database so it works.
Signed-off-by: Shubhrajyoti D<shubhrajyoti@ti.com>
Acked-by: Benoit Cousson<b-cousson@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>
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