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2009-08-20powerpc/cell: Move CBE_IOPTE_* to <asm/cell-regs.h>Geert Uytterhoeven
As <asm/iommu.h> doesn't contain any other hardware specific definitions but only interfaces. Reported-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Missing tests for NULL after ioremap()roel kluin
Missing tests after ioremap() Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/prom_init: Evaluate mem kernel parameter for early allocationBenjamin Krill
Evaluate mem kernel parameter for early memory allocations. If mem is set no allocation in the region above the given boundary is allowed. The current code doesn't take care about this and allocate memory above the given mem boundary. Signed-off-by: Benjamin Krill <ben@codiert.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: ARRAY_SIZE changes in pasemi and powermac codeStoyan Gaydarov
These changes were a direct result of using a semantic patch More information can be found at http://www.emn.fr/x-info/coccinelle/ Signed-off-by: Stoyan Gaydarov <sgayda2@uiuc.edu> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/nvram: Allow byte length reads from mmio NVRAM driverMartyn Welch
Add a byte length read and write interface compatible with the nvram_generic driver interface to the mmio driver. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/sputrace: Use the generic event tracerChristoph Hellwig
I wrote sputrace before generic tracing infrastrucure was available. Now that we have the generic event tracer we can convert it over and remove a lot of code: 8 files changed, 45 insertions(+), 285 deletions(-) To use it make sure CONFIG_EVENT_TRACING is enabled and then enable the spufs trace channel by echo 1 > /sys/kernel/debug/tracing/events/spufs/spufs_context/enable and then read the trace records using e.g. cat /sys/kernel/debug/tracing/trace Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Fix assert_pte_locked to work properly on uniprocessorKumar Gala
Since the pte_lockptr is a spinlock it gets optimized away on uniprocessor builds so using spin_is_locked is not correct. We can use assert_spin_locked instead and get the proper behavior between UP and SMP builds. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/86xx: Update GE Fanuc sbc310 DTSMartyn Welch
Update GE Fanuc DTS to match the alterations suggested during the merge of the ppc9a DTS in commit 740d36ae6344f38c4da64c2ede765d7d2dd1f132 Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/86xx: Enable XMC site on GE Fanuc SBC310Martyn Welch
This patch enables the XMC (PCIe daughter card) site on the SBC310. STG enter the description for the patch above. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/86xx: Correct reading of information presented in cpuinfoMartyn Welch
/proc/cpuinfo should be showing the boards revision and the revision of the FPGA fitted. The functions currently used to access this information as incorrect. Additionally the VME geographical address of the PPC9A and it's status as system contoller are available in the board registers. Show these in cpuinfo. Signed-off-by: Martyn Welch <martyn.welch@gefanuc.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/83xx: Add eSDHC support for MPC837xE-RDB/WLAN boardsAnton Vorontsov
Actually, the support is already there, but it requires newer U-Boots (to fill-in clock-frequency, and setup pin multiplexing). Though, it appears that on RDB boards USBB pins aren't multiplexed between USB and eSDHC (unlike MDS boards, where USB and eSDHC share pctl and pwrfault pins). So, for RDB boards we can safely setup pinmux and manually fill-in clock-frequency, thus making eSDHC work even with older u-boots. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/85xx: Add support for I2C EEPROMs on MPC8548CDS boardsAnton Vorontsov
This patch simply adds four eeprom nodes to MPC8548CDS' device tree. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/83xx: Add support for MPC8377E-WLAN boardsAnton Vorontsov
MPC8377E-WLAN are basically RDB boards except: - RAM extended to 512 MB; - NAND flash removed, NOR flash extended to 64 MB; - Vitesse VSC7385 5-port switch removed, RTL8211B PHY added; - Power management MCU removed; - PCI slot removed, another mini-PCI slot added (IRQ routing changed); - USB3300 PHY's ID pin grounded, thus USB port is host-only. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/qe: introduce missing kfreeJulia Lawall
Error handling code following a kzalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Acked-by: Timur Tabi <timur@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/ipic: introduce missing kfreeJulia Lawall
Error handling code following a kzalloc should free the allocated data. The semantic match that finds the problem is as follows: (http://www.emn.fr/x-info/coccinelle/) // <smpl> @r exists@ local idexpression x; statement S; expression E; identifier f,f1,l; position p1,p2; expression *ptr != NULL; @@ x@p1 = \(kmalloc\|kzalloc\|kcalloc\)(...); ... if (x == NULL) S <... when != x when != if (...) { <+...x...+> } ( x->f1 = E | (x->f1 == NULL || ...) | f(...,x->f1,...) ) ...> ( return \(0\|<+...x...+>\|ptr\); | return@p2 ...; ) @script:python@ p1 << r.p1; p2 << r.p2; @@ print "* file: %s kmalloc %s return %s" % (p1[0].file,p1[0].line,p2[0].line) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/82xx: mgcoge - updates for 2.6.32Heiko Schocher
- add I2C support - add FCC1 and FCC2 support - fix bogus gpio numbering in plattform code Signed-off-by: Heiko Schocher <hs@denx.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/ipic: unmask all interrupt sourcesSebastian Andrzej Siewior
in case the interrupt controller was used in an earlier life then it is possible it is that some of its sources were used and are still unmask. If the (unmasked) device is active and is creating interrupts (or one interrupts was pending since the interrupts were disabled) then the boot process "ends" very soon. Once external interrupts are enabled, we land in -> do_IRQ -> call ppc_md.get_irq() -> ipic_read() gets the source number -> irq_linear_revmap(source) -> revmap[source] == NO_IRQ -> irq_find_mapping(source) returns NO_IRQ because no source is registered -> source is NO_IRQ, ppc_spurious_interrupts gets incremented, no further action. Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/fsl_rio: Add kmalloc NULL testsJulia Lawall
Check that the result of kmalloc/kzalloc is not NULL before dereferencing it. The semantic match that finds this problem is as follows: (http://coccinelle.lip6.fr/) // <smpl> @@ expression *x; identifier f; constant char *C; @@ x = \(kmalloc\|kcalloc\|kzalloc\)(...); ... when != x == NULL when != x != NULL when != (x || ...) ( kfree(x) | f(...,C,...,x,...) | *f(...,x,...) | *x->f ) // </smpl> Signed-off-by: Julia Lawall <julia@diku.dk> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/fsl-booke: read buffer overflowRoel Kluin
cam[tlbcam_index] is checked before tlbcam_index < ARRAY_SIZE(cam) Signed-off-by: Roel Kluin <roel.kluin@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/85xx: Added 36-bit physical device tree for mpc8536ds boardKumar Gala
Added a device tree that should be similiar to mpc8536ds.dtb except the physical addresses for all IO are above the 4G boundary. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/85xx: Move mpc8536ds.dts to address-cells/size-cells = <2>Kumar Gala
Change the top-level #address-cells and #size-cells to <2> so the mpc8536ds.dts is easier to deal with both a true 32-bit physical or 36-bit physical address space. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/40x: Update kilauea defconfig to support NAND, RTC and HWMONStefan Roese
This patch adds support for the following devices to the Kilauea defconfig file: - PPC4xx NAND controller (NDFC) - I2C RTC (Dallas DS1338) - I2C HWMON (Dallas DS1775) Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/44x: Update Canyonlands defconfig to support NOR, NAND and RTCStefan Roese
This patch adds support for the following devices to the Canyonlands defconfig file: - NOR FLASH - PPC4xx NAND controller (NDFC) - I2C RTC (M41T80) Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/40x: Update Kilauea dts to support NAND, RTC and HWMONStefan Roese
This patch adds support for the following devices to the Kilauea dts: - PPC4xx NAND controller (NDFC) - I2C RTC (Dallas DS1338) - I2C HWMON (Dallas DS1775) Additionally the partitioning of the NOR FLASH is changed. The dtb partition has been missing. Fixed in this patch. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/44x: Add NAND support to Canyonlands dtsStefan Roese
Also some whitespace cleanup in the USB device nodes. Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Add AMCC 460EX/460GT Rev. B support to cputable.cStefan Roese
Signed-off-by: Stefan Roese <sr@denx.de> Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Fix switch_mmu_context to iterate of the proper list of cpusKumar Gala
Introduced a temporary variable into our iterating over the list cpus that are threads on the same core. For some reason Ben forgot how for loops work. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Fix encoding of page table cache numbersBenjamin Herrenschmidt
The mask used to encode the page table cache number in the batch when freeing page tables was too small for the new possible values of MMU page sizes. This increases it along with a comment explaining the constraints. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Remaining 64-bit Book3E supportBenjamin Herrenschmidt
This contains all the bits that didn't fit in previous patches :-) This includes the actual exception handlers assembly, the changes to the kernel entry, other misc bits and wiring it all up in Kconfig. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Add support for SPARSEMEM_VMEMMAP on 64-bit Book3EBenjamin Herrenschmidt
The base TLB support didn't include support for SPARSEMEM_VMEMMAP, though we did carve out some virtual space for it, the necessary support code wasn't there. This implements it by using 16M pages for now, though the page size could easily be changed at runtime if necessary. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Add TLB management code for 64-bit Book3EBenjamin Herrenschmidt
This adds the TLB miss handler assembly, the low level TLB flush routines along with the necessary hook for dealing with our virtual page tables or indirect TLB entries that need to be flushes when PTE pages are freed. There is currently no support for hugetlbfs Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Move around mmu_gathers definition on 64-bitBenjamin Herrenschmidt
The definition for the global structure mmu_gathers, used by generic code, is currently defined in multiple places not including anything used by 64-bit Book3E. This changes it by moving to one place common to all processors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Add PACA fields specific to 64-bit Book3E processorsBenjamin Herrenschmidt
This adds various fields in the PACA that are for use specifically by Book3E processors, such as exception save areas, current pgd pointer, special exceptions kernel stacks etc... Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Add definitions used by exception handling on 64-bit Book3EBenjamin Herrenschmidt
This adds various definitions and macros used by the exception and TLB miss handling on 64-bit BookE It also adds the definitions of the SPRGs used for various exception types Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Add memory management headers for new 64-bit BookEBenjamin Herrenschmidt
This adds the PTE and pgtable format definitions, along with changes to the kernel memory map and other definitions related to implementing support for 64-bit Book3E. This also shields some asm-offset bits that are currently only relevant on 32-bit We also move the definition of the "linux" page size constants to the common mmu.h file and add a few sizes that are relevant to embedded processors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Add SPR definitions for new 64-bit BookEBenjamin Herrenschmidt
This adds various SPRs defined on 64-bit BookE, along with changes to the definition of the base MSR values to add the values needed for 64-bit Book3E. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Rework & cleanup page table freeing code pathBenjamin Herrenschmidt
That patch used to just add a hook to page table flushing but pulling that string brought out a whole bunch of issues, so it now does that and more: - We now make the RCU batching of page freeing SMP only, as I believe it was intended initially. We make a few more things compile to nothing on !CONFIG_SMP - Some macros are turned into functions, though that forced me to out of line a few stuffs due to unsolvable include depenencies, however it's probably better that way anyway, it's not -that- critical code path. - 32-bit didn't call pte_free_finish() on tlb_flush() which means that it wouldn't push out the batch to RCU for delayed freeing when a bunch of page tables have been freed, they would just stay in there until the batch gets full. 64-bit BookE will use that hook to maintain the virtually linear page tables or the indirect entries in the TLB when using the HW loader. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Move definitions of secondary CPU spinloop to header fileBenjamin Herrenschmidt
Those definitions are currently declared extern in the .c file where they are used, move them to a header file instead. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Clean ifdef usage in copy_thread()Benjamin Herrenschmidt
Currently, a single ifdef covers SLB related bits and more generic ppc64 related bits, split this in two separate ifdef's since 64-bit BookE will need one but not the other. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Call mmu_context_init() from ppc64Benjamin Herrenschmidt
Our 64-bit hash context handling has no init function, but 64-bit Book3E will use the common mmu_context_nohash.c code which does, so define an empty inline mmu_context_init() for 64-bit server and call it from our 64-bit setup_arch() Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-20powerpc/mm: Make low level TLB flush ops on BookE take additional argsBenjamin Herrenschmidt
We need to pass down whether the page is direct or indirect and we'll need to pass the page size to _tlbil_va and _tlbivax_bcast We also add a new low level _tlbil_pid_noind() which does a TLB flush by PID but avoids flushing indirect entries if possible This implements those new prototypes but defines them with inlines or macros so that no additional arguments are actually passed on current processors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Modify some ppc_asm.h macros to accomodate 64-bits Book3EBenjamin Herrenschmidt
The way I intend to use tophys/tovirt on 64-bit BookE is different from the "trick" that we currently play for 32-bit BookE so change the condition of definition of these macros to make it so. Also, make sure we only use rfid and mtmsrd instead of rfi and mtmsr for 64-bit server processors, not all 64-bit processors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Kumar Gala <galak@kernel.crashing.org>
2009-08-20powerpc/mm: Add support for early ioremap on non-hash 64-bit processorsBenjamin Herrenschmidt
This adds some code to do early ioremap's using page tables instead of bolting entries in the hash table. This will be used by the upcoming 64-bits BookE port. The patch also changes the test for early vs. late ioremap to use slab_is_available() instead of our old hackish mem_init_done. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Add more bit definitions for Book3E MMU registersBenjamin Herrenschmidt
This adds various additional bit definitions for various MMU related SPRs used on Book3E. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Add opcode definitions for tlbivax and tlbsrx.Benjamin Herrenschmidt
This adds the opcode definitions to ppc-opcode.h for the two instructions tlbivax and tlbsrx. as defined by Book3E 2.06 Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Add HW threads support to no_hash TLB managementBenjamin Herrenschmidt
The current "no hash" MMU context management code is written with the assumption that one CPU == one TLB. This is not the case on implementations that support HW multithreading, where several linux CPUs can share the same TLB. This adds some basic support for this to our context management and our TLB flushing code. It also cleans up the optional debugging output a bit Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/of: Remove useless register save/restore when calling OF backBenjamin Herrenschmidt
enter_prom() used to save and restore registers such as CTR, XER etc.. which are volatile, or SRR0,1... which we don't care about. This removes a bunch of useless code and while at it turns an mtmsrd into an MTMSRD macro which will be useful to Book3E. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc/mm: Fix misplaced #endif in pgtable-ppc64-64k.hBenjamin Herrenschmidt
A misplaced #endif causes more definitions than intended to be protected by #ifndef __ASSEMBLY__. This breaks upcoming 64-bit BookE support patch when using 64k pages. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Add compat_sys_truncateBenjamin Herrenschmidt
The truncate syscall has a signed long parameter, so when using a 32- bit userspace with a 64-bit kernel the argument is zero-extended instead of sign-extended. Adding the compat_sys_truncate function fixes the issue. This was noticed during an LSB truncate test failure. The test was checking for the correct error number set when truncate is called with a length of -1. The test can be found at: http://bzr.linuxfoundation.org/lsb/devel/runtime-test?cmd=inventory;rev=stewb%40linux-foundation.org-20090626205411-sfb23cc0tjj7jzgm;path=modules/vsx-pcts/tset/POSIX.os/files/truncate/ BenH: Added compat_sys_ftruncate() as well, same issue. Signed-off-by: Chase Douglas <cndougla@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
2009-08-20powerpc: Update boot wrapper script with the new location of dtcLucian Adrian Grijincu
dtc was moved in 9fffb55f66127b52c937ede5196ebfa0c0d50bce from arch/powerpc/boot/ to scripts/dtc/ This patch updates the wrapper script to point to the new location of dtc. Signed-off-by: Lucian Adrian Grijincu <lgrijincu@ixiacom.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
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