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* powerpc/CPM: Add i2c pins to dts and board setupJochen Friedrich2008-07-146-0/+44
| | | | | | | | | | | | Initialize I2C pins on boards with CPM1/CPM2 controllers and document the i2c bus in booting-without-of. The boards don't have any I2C chips connected to the I2C bus, so unless some external chips are connected to the boards, this code is just an example of setting everything else up. Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Add support for MPC8536DSKumar Gala2008-07-146-0/+2191
| | | | | | | | | | Add support for the MPC8536 process and MPC8536DS reference board. The MPC8536 is an e500v2 based SoC which eTSEC, USB, SATA, PCI, and PCIe. The USB and SATA IP blocks are similiar to those on the PQ2 Pro SoCs and thus use the same drivers. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: minor fixes for MPC85xx DS board portKumar Gala2008-07-141-3/+3
| | | | | | | | | | These issues were reported by Stephen Rothwell for another 85xx board port and pointed out by Chen Gong as issues in the DS port. * mpic OF node reference counting was off * of_device_id struct should be marked as __initdata Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/CPM: Minor cosmetic changes to udbg_putcNye Liu2008-07-141-2/+1
| | | | | | | | | udbg_putc is a *function pointer* that is initialized during udbg_init_cpm. It might not be initialized properly when called from udbg_putc_cpm(), so (recursively) call udbg_putc_cpm() directly. Signed-off-by: Nye Liu <nyet@mrv.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: TQM8548: add missing support for RTC and LM75Wolfgang Grandegger2008-07-142-6/+142
| | | | | | | | It adds the missing RTC node to tqm8548.dts and enables support for I2C, DS1307 and LM75 in the default configuration. Signed-off-by: Wolfgang Grandegger <wg@grandegger.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/86xx: mpc8610_hpcd: fix interrupt trigger type for ULi IDEAnton Vorontsov2008-07-141-1/+1
| | | | | | | | | | | | i8259 PIC is disabled on MPC8610HPCD, and ULi IDE is configured to use PCI sideband interrupt that is specified in the device tree. Current HPCD's device tree specify that IDE interrupt is low to high sensitive, but in practice ULi IDE throws active-high interrupts (not active-low as all normal PCI devices). Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc: Fix pq2fads irq handling with PREEMPT_RTRune Torgersen2008-07-141-1/+1
| | | | | | | Fix interrupt threading issue on pq2fads when running with CONFIG_PREEMPT_RT Signed-off-by: Rune Torgersen <runet@innovsys.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Fix KSI8560 .dtsKumar Gala2008-07-141-10/+10
| | | | | | | Rename MPIC label to mpic to match all other 85xx .dts and to fix compile issue introduced by addition of the DMA node. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Merge commit 'origin/HEAD' into test-mergeBenjamin Herrenschmidt2008-07-144-4/+25
|\ | | | | Manual fixup of include/asm-powerpc/pgtable-ppc64.h
| * powerpc: Add missing reference to coherent_dma_maskVitaly Bordug2008-07-081-0/+2
| | | | | | | | | | | | | | | | | | | | There is dma_mask in of_device upon of_platform_device_create() but we don't actually set coherent_dma_mask. This may cause weird behavior of USB subsystem using of_device USB host drivers. Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * powerpc: Fix unterminated of_device_id array in legacy_serial.cBenjamin Herrenschmidt2008-07-071-2/+3
| | | | | | | | | | | | | | | | | | | | | | | | A recent patch to legacy_serial.c factored out some code by using the of_match_node() facility to match a node against an array of possible matches. However, the patch didn't properly terminate the array causing potential crashes in cases where no match is found. In addition, the name of the array was poorly chosen for a static symbol making debugging harder. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * Merge branch 'for-2.6.26' of git://git.secretlab.ca/git/linux-2.6-mpc52xx ↵Paul Mackerras2008-07-031-1/+13
| |\ | | | | | | | | | into merge
| | * powerpc/mpc5200: Fix lite5200b suspend/resumeTim Yamin2008-07-011-1/+13
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Suspend/resume ("echo mem > /sys/power/state") does not work with vanilla kernels -- the system does not suspend correctly and just hangs. This patch fixes this so suspend/resume works: 1) of_iomap does not map the whole 0xC000 of the MPC5200 immr so saving registers does not work. 2) PCI registers need to be saved and restored. Signed-off-by: Tim Yamin <plasm@roo.me.uk> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | powerpc/legacy_serial: Bail if reg-offset/shift properties are presentJohn Linn2008-07-011-0/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | The legacy serial driver does not work with an 8250 type UART that is described in the device tree with the reg-offset and reg-shift properties. This change makes legacy_serial ignore these devices. Signed-off-by: John Linn <john.linn@xilinx.com> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
| * | powerpc/bootwrapper: update for initrd with simpleImageJohn Linn2008-07-011-1/+2
| |/ | | | | | | | | | | | | This change to the makefile corrects the build of a simpleImage with initrd. Signed-off-by: John Linn <john.linn@xilinx> Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* | powerpc/eeh: PERR/SERR bit settings during EEH device recoveryMike Mason2008-07-091-0/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | The following patch restores the PERR and SERR bits in the PCI command register during an EEH device recovery. We have found at least one case (an Agilent test card) where the PERR/SERR bits are set to 1 by firmware at boot time, but are not restored to 1 during EEH recovery. The patch fixes the Agilent card problem. It has been tested on several other EEH-enabled cards with no regressions. Signed-off-by: Mike Mason <mmlnx@us.ibm.com> Acked-by: Linas Vepstas <linasvepstas@gmail.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: remove unused variable in emulate_fp_pairMichael Neuling2008-07-091-3/+3
| | | | | | | | | | | | | | regs is not used in emulate_fp_pair so remove it. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: fix swapcontext backwards compat. with VSX ucontext changesMichael Neuling2008-07-092-5/+70
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | When the ucontext changed to add the VSX context, this broke backwards compatibly on swapcontext. swapcontext only compares the ucontext size passed in from the user to the new kernel ucontext size. This adds a check against the old ucontext size (with VMX but without VSX). It also adds some sanity check for ucontexts without VSX, but where VSX is used according the MSR. Fixes for both 32 and 64bit processes on 64bit kernels Kudos to Paulus for noticing. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/ibmebus: more meaningful variable namePaul Gortmaker2008-07-091-2/+2
| | | | | | | | | | | | | | | | Choose a more meaningful name for better System.map readability and autopsy value etc. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | ibm_newemac: Parameterize EMAC Multicast Match HandlingGrant Erickson2008-07-099-27/+27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Various instances of the EMAC core have varying: 1) number of address match slots, 2) width of the registers for handling address match slots, 3) number of registers for handling address match slots and 4) base offset for those registers. As the driver stands today, it assumes that all EMACs have 4 IAHT and GAHT 32-bit registers, starting at offset 0x30 from the register base, with only 16-bits of each used for a total of 64 match slots. The 405EX(r) and 460EX now use the EMAC4SYNC core rather than the EMAC4 core. This core has 8 IAHT and GAHT registers, starting at offset 0x80 from the register base, with ALL 32-bits of each used for a total of 256 match slots. This adds a new compatible device tree entry "emac4sync" and a new, related feature flag "EMAC_FTR_EMAC4SYNC" along with a series of macros and inlines which supply the appropriate parameterized value based on the presence or absence of the EMAC4SYNC feature. The code has further been reworked where appropriate to use those macros and inlines. In addition, the register size passed to ioremap is now taken from the device tree: c4 for EMAC4SYNC cores 74 for EMAC4 cores 70 for EMAC cores rather than sizeof (emac_regs). Finally, the device trees have been updated with the appropriate compatible entries and resource sizes. This has been tested on an AMCC Haleakala board such that: 1) inbound ICMP requests to 'haleakala.local' via MDNS from both Mac OS X 10.4.11 and Ubuntu 8.04 systems as well as 2) outbound ICMP requests from 'haleakala.local' to those same systems in the '.local' domain via MDNS now work. Signed-off-by: Grant Erickson <gerickson@nuovations.com> Acked-by: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/mm: Don't clear _PAGE_COHERENT when _PAGE_SAO is setDave Kleikamp2008-07-091-1/+2
| | | | | | | | | | | | | | | | | | | | | | | | The current low level hash code on LPAR configurations clears _PAGE_COHERENT (M) when either _PAGE_GUARDED (G) or _PAGE_NO_CACHE (I) is set. This conflicts with _PAGE_SAO which has M, I and W bits sets at once (normally invalid combo) to indicate the new SAO attribute. This changes the code to allow that case. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/mm: Add Strong Access Ordering supportDave Kleikamp2008-07-091-0/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow an application to enable Strong Access Ordering on specific pages of memory on Power 7 hardware. Currently, power has a weaker memory model than x86. Implementing a stronger memory model allows an emulator to more efficiently translate x86 code into power code, resulting in faster code execution. On Power 7 hardware, storing 0b1110 in the WIMG bits of the hpte enables strong access ordering mode for the memory page. This patchset allows a user to specify which pages are thus enabled by passing a new protection bit through mmap() and mprotect(). I have defined PROT_SAO to be 0x10. Signed-off-by: Dave Kleikamp <shaggy@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: Use new printk extension %pS to print symbols on oopsBenjamin Herrenschmidt2008-07-091-9/+5
| | | | | | | | | | | | | | | | This changes the oops and backtrace code to use the new %pS printk extension to print out symbols rather than manually calling print_symbol. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc: move device_to_mask() to dma-mapping.hMark Nelson2008-07-091-9/+0
| | | | | | | | | | | | | | | | | | Move device_to_mask() to dma-mapping.h because we need to use it from outside dma_64.c in a later patch. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/cell: cell_dma_dev_setup_iommu() return the iommu tableMark Nelson2008-07-091-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Make cell_dma_dev_setup_iommu() return a pointer to the struct iommu_table (or NULL if no table can be found) rather than putting this pointer into dev->archdata.dma_data (let the caller do that), and rename this function to cell_get_iommu_table() to reflect this change. This will allow us to get the iommu table for a device that doesn't have the table in the archdata. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/dma: implement new dma_*map*_attrs() interfacesMark Nelson2008-07-096-29/+50
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update powerpc to use the new dma_*map*_attrs() interfaces. In doing so update struct dma_mapping_ops to accept a struct dma_attrs and propagate these changes through to all users of the code (generic IOMMU and the 64bit DMA code, and the iseries and ps3 platform code). The old dma_*map_*() interfaces are reimplemented as calls to the corresponding new interfaces. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/dma: Add struct iommu_table argument to iommu_map_sg()Mark Nelson2008-07-092-5/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Make iommu_map_sg take a struct iommu_table. It did so before commit 740c3ce66700640a6e6136ff679b067e92125794 (iommu sg merging: ppc: make iommu respect the segment size limits). This stops the function looking in the archdata.dma_data for the iommu table because in the future it will be called with a device that has no table there. This also has the nice side effect of making iommu_map_sg() match the other map functions. Signed-off-by: Mark Nelson <markn@au1.ibm.com> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/spufs: add atomic busy_spus counter to struct cbe_spu_infoMaxim Shchetynin2008-07-091-0/+6
| | | | | | | | | | | | | | | | | | | | | | As nr_active counter includes also spus waiting for syscalls to return we need a seperate counter that only counts spus that are currently running on spu side. This counter shall be used by a cpufreq governor that targets a frequency dependent from the number of running spus. Signed-off-by: Christian Krafft <krafft@de.ibm.com> Acked-by: Jeremy Kerr <jk@ozlabs.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/ps3: Quiet system bus match outputGeoff Levand2008-07-091-8/+13
| | | | | | | | | | | | | | Reduce the output verbosity of ps3_system_bus_match(). Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | powerpc/spufs: only add ".ctx" file with "debug" mount optionJeremy Kerr2008-07-093-8/+38
| | | | | | | | | | | | | | | | | | | | | | Currently, the .ctx debug file in spu context directories is always present. We'd prefer to prevent users from relying on this file, so add a "debug" mount option to spufs. The .ctx file will only be added to the context directories when this option is present. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* | powerpc/spufs: add sizes for context filesJeremy Kerr2008-07-091-17/+19
| | | | | | | | | | | | | | | | Populate the size member of a few context files. Leave out files that have different semantics with read vs mmap, or contain a variable-length hex string. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* | powerpc/spufs: allow spufs files to specify sizesJeremy Kerr2008-07-093-7/+15
| | | | | | | | | | | | | | | | | | | | | | Currently, spufs never specifies the i_size for the files in context directories, so stat() always reports 0-byte files. This change adds allows the spufs_dir_(nosched_)contents arrays to specify a file size. This allows stat() to report correct file sizes, and makes SEEK_END work. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* | powerpc/spufs: avoid magic numbers for mapping sizesJeremy Kerr2008-07-093-18/+25
| | | | | | | | | | | | | | Use a set of #defines for the size of context mappings, instead of magic numbers. Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* | powerpc/spufs: don't extend time time slice if context is not in spu_runLuke Browning2008-07-091-1/+2
| | | | | | | | | | | | | | | | | | | | An spu context shouldn't get an extra tick if the time slice code couldn't find something else to run. This means contexts that are not within spu_run (ie, SPU_SCHED_SPU_RUN is cleared) will not receive extra ticks while we have no other contexts waiting. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* | powerpc/spufs: provide context debug fileLuke Browning2008-07-091-0/+54
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Add a ctxt file to spufs that shows spu context information that is used in scheduling. This info can be used for debugging spufs scheduler issues, and to isolate between application and spufs problems as it shows a lot of state such as priorities and dispatch counts. This file contains internal spufs state and is subject to change at any time, and therefore no applications should depend on it. The file is intended for the use of spufs kernel developers. Signed-off-by: Luke Browning <lukebrowning@us.ibm.com> Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
* | powerpc/pseries: Update numa association of hotplug memory add for drconf memoryNathan Fontenot2008-07-031-18/+83
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Update the association of a memory section with a numa node that occurs during hotplug add of a memory section. This adds a check in the hot_add_scn_to_nid() routine for the ibm,dynamic-reconfiguration-memory node in the device tree. If present the new hot_add_drconf_scn_to_nid() routine is invoked, which can properly parse the ibm,dynamic-reconfiguration-memory node of the device tree and make the proper numa node associations. This also introduces the valid_hot_add_scn() routine as a helper function for code that is common to the hot_add_scn_to_nid() and hot_add_drconf_scn_to_nid() routines. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc/pseries: Split code into helper routines for drconf memoryNathan Fontenot2008-07-031-39/+170
| | | | | | | | | | | | | | | | | | | | This splits off several pieces of code that parse the ibm,dynamic-reconfiguration-memory node of the device tree into separate helper routines. This is in preparation for the next commit that will use these helper routines. There are no functional changes in this patch. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc/pseries: Update the device tree correctly for drconf memory add/removeNathan Fontenot2008-07-032-31/+100
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This updates the device tree manipulation routines so that memory add/remove of lmbs represented under the ibm,dynamic-reconfiguration-memory node of the device tree invokes the hotplug notifier chain. This change is needed because of the change in the way memory is represented under the ibm,dynamic-reconfiguration-memory node. All lmbs are described in the ibm,dynamic-memory property instead of having a separate node for each lmb as in previous device tree layouts. This requires the update_node() routine to check for updates to the ibm,dynamic-memory property and invoke the hotplug notifier chain. This also updates the pseries hotplug notifier to be able to gather information for lmbs represented under the ibm,dynamic-reconfiguration-memory node and have the lmbs added/removed. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc/pseries: Use base address to derive starting page frame numberNathan Fontenot2008-07-031-19/+17
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Use the base address of the lmb to derive the starting page frame number instead of trying to extract it from the drc index of the lmb. The drc index should not be used for this as it will, and did, break. Until this point, systems that have had memory represented in the device tree with a node for each lmb the drc index would (luckily) closely track the base address of the lmb. For example a lmb with a drc index of 8000000a would have a base address of a0000000. This correlation allowed the current code to derive the starting page frame number from the drc inddex Device tree layouts where lmbs are represented under the ibm,dynamic-reconfiguration-memory node in the ibm,dynamic-memory property do not have this correlation between the drc index and base address of the lmb. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc/pseries: Allow phandle to be specified in formats other than decimalNathan Fontenot2008-07-031-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Allow the phandle passed to the /proc/ppc64/ofdt file to be specified in formats other than decimal. This allows us to easily specify phandle values in hex that would otherwise appear as negative integers. This is an issue on systems where the value of /proc/device-tree/ibm,dynamic-reconfiguration-memory.ibm,phandle is fffffff9. Having to pass this to the ofdt file as a string results in a large negative number, and simple_strtoul() does not handle negative numbers. Signed-off-by: Nathan Fontenot <nfont@austin.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Remove old dump_task_* functionsMichael Neuling2008-07-031-83/+0
| | | | | | | | | | | | | | | | | | | | Since Roland's ptrace cleanup starting with commit f65255e8d51ecbc6c9eef20d39e0377d19b658ca ("[POWERPC] Use user_regset accessors for FP regs"), the dump_task_* functions are no longer being used. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Clean up copy_to/from_user for vsx and fprMichael Neuling2008-07-033-66/+96
| | | | | | | | | | | | | | | | | | | | | | This merges and cleans up some of the ugly copy/to from user code which is required for the new fpr and vsx layout in the thread_struct. Also fixes some hard coded buffer sizes and removes a redundant fpr_flush_to_thread. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Fixup lwsync at runtimeKumar Gala2008-07-039-0/+85
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To allow for a single kernel image on e500 v1/v2/mc we need to fixup lwsync at runtime. On e500v1/v2 lwsync causes an illop so we need to patch up the code. We default to 'sync' since that is always safe and if the cpu is capable we will replace 'sync' with 'lwsync'. We introduce CPU_FTR_LWSYNC as a way to determine at runtime if this is needed. This flag could be moved elsewhere since we dont really use it for the normal CPU_FTR purpose. Finally we only store the relative offset in the fixup section to keep it as small as possible rather than using a full fixup_entry. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Fix building of feature-fixup tests on ppc32Kumar Gala2008-07-031-3/+3
| | | | | | | | | | | | | | | | | | | | | | | | We need to use PPC_LCMPI otherwise we get compile errors like: arch/powerpc/lib/feature-fixups-test.S: Assembler messages: arch/powerpc/lib/feature-fixups-test.S:142: Error: Unrecognized opcode: `cmpdi' arch/powerpc/lib/feature-fixups-test.S:149: Error: Unrecognized opcode: `cmpdi' arch/powerpc/lib/feature-fixups-test.S:164: Error: Unrecognized opcode: `cmpdi' Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Fix building of arch/powerpc/mm/mem.o when MEMORY_HOTPLUG=y and ↵Tony Breeds2008-07-031-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | SPARSEMEM=n Currently the kernel fails to build with the above config options with: CC arch/powerpc/mm/mem.o arch/powerpc/mm/mem.c: In function 'arch_add_memory': arch/powerpc/mm/mem.c:130: error: implicit declaration of function 'create_section_mapping' This explicitly includes asm/sparsemem.h in arch/powerpc/mm/mem.c and moves the guards in include/asm-powerpc/sparsemem.h to protect the SPARSEMEM specific portions only. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Update for VSX core file and ptraceMichael Neuling2008-07-012-26/+14
| | | | | | | | | | | | | | | | | | | | | | This correctly hooks the VSX dump into Roland McGrath core file infrastructure. It adds the VSX dump information as an additional elf note in the core file (after talking more to the tool chain/gdb guys). This also ensures the formats are consistent between signals, ptrace and core files. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Fix compile error for CONFIG_VSXMichael Neuling2008-07-011-0/+1
| | | | | | | | | | | | | | | | | | | | Fix compile error when CONFIG_VSX is enabled. arch/powerpc/kernel/signal_64.c: In function 'restore_sigcontext': arch/powerpc/kernel/signal_64.c:241: error: 'i' undeclared (first use in this function) Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Explicitly copy elements of pt_regsStephen Rothwell2008-07-011-12/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Gcc 4.3 produced this warning: arch/powerpc/kernel/signal_64.c: In function 'restore_sigcontext': arch/powerpc/kernel/signal_64.c:161: warning: array subscript is above array bounds This is caused by us copying to aliases of elements of the pt_regs structure. Make those explicit. This adds one extra __get_user and unrolls a loop. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Remove experimental status of kdump on 64-bit powerpcBernhard Walle2008-07-011-2/+2
| | | | | | | | | | | | | | | | This removes the experimental status of kdump on PPC64. kdump is on PPC64 now since more than one year and it has proven to be stable. Signed-off-by: Bernhard Walle <bwalle@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | powerpc: Prevent memory corruption due to cache invalidation of unaligned ↵Andrew Lewis2008-07-011-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | DMA buffer On PowerPC processors with non-coherent cache architectures the DMA subsystem calls invalidate_dcache_range() before performing a DMA read operation. If the address and length of the DMA buffer are not aligned to a cache-line boundary this can result in memory outside of the DMA buffer being invalidated in the cache. If this memory has an uncommitted store then the data will be lost and a subsequent read of that address will result in an old value being returned from main memory. Only when the DMA buffer starts on a cache-line boundary and is an exact mutiple of the cache-line size can invalidate_dcache_range() be called, otherwise flush_dcache_range() must be called. flush_dcache_range() will first flush uncommitted writes, and then invalidate the cache. Signed-off-by: Andrew Lewis <andrew-lewis at netspace.net.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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