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* [POWERPC] Disable G5 NAP mode during SMU commands on U3Benjamin Herrenschmidt2008-02-081-1/+10
| | | | | | | | | | | | | | | | | | | It appears that with the U3 northbridge, if the processor is in NAP mode the whole time while waiting for an SMU command to complete, then the SMU will fail. It could be related to the weird backward mechanism the SMU uses to get to system memory via i2c to the northbridge that doesn't operate properly when the said bridge is in napping along with the CPU. That is on U3 at least, U4 doesn't seem to be affected. This didn't show before NO_HZ as the timer wakeup was enough to make it work it seems, but that is no longer the case. This fixes it by disabling NAP mode on those machines while an SMU command is in flight. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* calibrate_delay() must be __cpuinitAdrian Bunk2008-02-061-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | calibrate_delay() must be __cpuinit, not __{dev,}init. I've verified that this is correct for all users. While doing the latter, I also did the following cleanups: - remove pointless additional prototypes in C files - ensure all users #include <linux/delay.h> This fixes the following section mismatches with CONFIG_HOTPLUG=n, CONFIG_HOTPLUG_CPU=y: WARNING: vmlinux.o(.text+0x1128d): Section mismatch: reference to .init.text.1:calibrate_delay (between 'check_cx686_slop' and 'set_cx86_reorder') WARNING: vmlinux.o(.text+0x25102): Section mismatch: reference to .init.text.1:calibrate_delay (between 'smp_callin' and 'cpu_coregroup_map') Signed-off-by: Adrian Bunk <bunk@kernel.org> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: Richard Henderson <rth@twiddle.net> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: "David S. Miller" <davem@davemloft.net> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: Christian Zankel <chris@zankel.net> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Martin Schwidefsky <schwidefsky@de.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* Merge branch 'linux-2.6'Paul Mackerras2008-01-311-1/+1
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| * Driver core: change sysdev classes to use dynamic kobject namesKay Sievers2008-01-241-1/+1
| | | | | | | | | | | | | | | | | | | | All kobjects require a dynamically allocated name now. We no longer need to keep track if the name is statically assigned, we can just unconditionally free() all kobject names on cleanup. Signed-off-by: Kay Sievers <kay.sievers@vrfy.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* | [POWERPC] powermac: Use machine_*_initcall() hooks in platform codeGrant Likely2008-01-174-19/+6
| | | | | | | | | | Signed-off-by: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Use for_each macros in arch/powerpc/platforms/powermacCyrill Gorcunov2008-01-171-2/+1
| | | | | | | | | | Signed-off-by: Cyrill Gorcunov <gorcunov@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] arch/powerpc: Remove duplicate includesLucas Woods2007-12-201-1/+0
| | | | | | | | | | | | | | Signed-off-by: Lucas Woods <woodzy@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Improve resource setup of PowerMac G5 HT bridgeBenjamin Herrenschmidt2007-12-201-78/+64
| | | | | | | | | | | | | | | | | | | | | | The device node for the HT bridge on G5s doesn't contain useful ranges. We used to give it a bunch of the known PCI space and then punch a "hole" in it based on where the AGP or PCIe region was. This reworks it to use the actual register in the bridge that controls the decoding instead. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Enable self-view of the HT host bridge on PowerMac G5Benjamin Herrenschmidt2007-12-202-20/+38
| | | | | | | | | | | | | | | | This enables the PCI code to see the device that represents the HT host bridge on the PowerMac G5. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Clear pci_probe_only on 64 bits PowerMacBenjamin Herrenschmidt2007-12-201-2/+2
| | | | | | | | | | | | | | | | It should now be safe to re-assign unassigned resources on 64 bits PowerMac machines (G5s). This clears pci_probe_only on those. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Fixup powermac enable device hookBenjamin Herrenschmidt2007-12-201-4/+14
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Powermac's use of the pcibios_enable_device_hook() got slightly broken by the recent PCI merge in that it won't be called for the "initial" case of assigning resources to a previously unassigned device. This was an abuse of that hook anyway, so instead we now use a header quirk. While at it, we move a #ifdef CONFIG_PPC32 to enclose more code that is only ever used on 32 bits. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Merge 32 and 64 bits pcibios_enable_deviceBenjamin Herrenschmidt2007-12-202-13/+11
| | | | | | | | | | | | | | | | | | | | This merge the two implementations, based on the previously fixed up 32 bits one. The pcibios_enable_device_hook in ppc_md is now available for ppc64 use. Also remove the new unused "initial" parameter from it and fixup users. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Merge PCI resource allocation & assignmentBenjamin Herrenschmidt2007-12-201-2/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The 32 bits PCI code now uses the generic code for assigning unassigned resources and an algorithm similar to x86 for claiming existing ones. This works far better than the 64 bits code which basically can only claim existing ones (pci_probe_only=1) or would fall apart completely. This merges them so that the new 32 bits implementation is used for both. 64 bits now gets the new PCI flags for controlling the behaviour, though the old pci_probe_only global is still there for now to be cleared if you want to. I kept a pcibios_claim_one_bus() function mostly based on the old 64 bits code for use by the DLPAR hotplug. This will have to be cleaned up, thought I hope it will work in the meantime. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] pci32: Add flags modifying the PCI code behaviourBenjamin Herrenschmidt2007-12-201-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | | | | | This adds to the 32 bits PCI code some flags, replacing the old pci_assign_all_busses global, that allow us to control various aspects of the PCI probing, such as whether to re-assign all resources or not, or to not try to assign anything at all. This also adds the flag x86 already has to avoid ISA alignment on bridges that don't have ISA forwarding enabled (no legacy devices on the top level bus) and sets it for PowerMacs. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | Merge branch 'linux-2.6' into for-2.6.25Paul Mackerras2007-12-111-2/+9
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| * powerpc: Fix IDE legacy vs. native fixupsBenjamin Herrenschmidt2007-12-101-2/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | PowerMac and CHRP/BriQ platforms have quirks to switch some IDE controllers from legacy mode to fully native mode. Those quirks however will not work properly anymore due to a change to the generic code to better handle legacy IDE resources. This fixes it by moving those quirk to "early" quirks (so they run before resources are probed for the devices) and clearing all BARs after the conversion to force a reallocation of sane values. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | [POWERPC] pci_controller->arch_data really is a struct device_node *Stephen Rothwell2007-12-111-3/+3
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Clean out asm/of_{platform, device}.hJon Loeliger2007-12-061-2/+2
| | | | | | | | | | | | | | | | Convert #include of asm/of_{platform, device}.h into linux/of_{platform,device}.h for a few scattered platforms. Signed-off-by: Jon Loeliger <jdl@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] powermac: Fix warning in time.cJohannes Berg2007-12-031-0/+2
|/ | | | | | | | | | arch/powerpc/platforms/powermac/time.c:88: warning: 'to_rtc_time' defined but not used This fixes the warning by making the relevant code depend on the users. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreqLinus Torvalds2007-10-122-2/+0
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | * master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq: [CPUFREQ] Don't take semaphore in cpufreq_quick_get() [CPUFREQ] Support different families in fid/did to frequency conversion [CPUFREQ] cpufreq_stats: misc cpuinit section annotations [CPUFREQ] implement !CONFIG_CPU_FREQ stub for cpufreq_unregister_notifier() [CPUFREQ] mark hotplug notifier callback as __cpuinit [CPUFREQ] Only check for transition latency on problematic governors (kconfig fix) [CPUFREQ] allow ondemand and conservative cpufreq governors to be used as default [CPUFREQ] move policy's governor initialisation out of low-level drivers into cpufreq core [CPUFREQ] Longhaul - Add support for PM133 northbridge [CPUFREQ] x86: use num_online_nodes to get physical cpus numbers for
| * [CPUFREQ] move policy's governor initialisation out of low-level drivers ↵Thomas Renninger2007-10-042-2/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | into cpufreq core Signed-off-by: Thomas Renninger <trenn@suse.de> Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Bryan Wu <bryan.wu@analog.com> Cc: Andi Kleen <ak@suse.de> Cc: "Luck, Tony" <tony.luck@intel.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mundt <lethal@linux-sh.org> Cc: "David S. Miller" <davem@davemloft.net> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Dave Jones <davej@redhat.com>
* | [POWERPC] Remove unused old code from powermac setup codePaul Mackerras2007-10-091-66/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | Since bootdevice never gets initialized, it's always NULL, and hence a whole pile of code in arch/powerpc/platforms/setup.c never gets used. (This was the code that originally was there so that the automatic root partition selection mechanism would prefer a rootish-looking partition on the device that OF loaded the kernel from over a similar partition on other devices.) This removes the unused code. Signed-off-by: Paul Mackerras <paulus@samba.org> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* | [POWERPC] Remove some more section mismatch warningsStephen Rothwell2007-10-091-2/+7
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | WARNING: vmlinux.o(.text+0x2ff5c): Section mismatch: reference to .init.text:.pmac_find_ide_boot (between '.note_bootable_part' and '.note_scsi_host') >From holly_defconfig: WARNING: vmlinux.o(.text+0x164fe): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') WARNING: vmlinux.o(.text+0x16506): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') >From linkstation_defconfig: WARNING: vmlinux.o(.text+0x158fe): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') WARNING: vmlinux.o(.text+0x15906): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') >From mpc7448_hpc2_defconfig: WARNING: vmlinux.o(.text+0x1583e): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') WARNING: vmlinux.o(.text+0x15846): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') >From pmac32_defconfig: WARNING: vmlinux.o(.text+0x154ca): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'note_scsi_host') WARNING: vmlinux.o(.text+0x154d2): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'note_scsi_host') WARNING: vmlinux.o(.text+0x1553c): Section mismatch: reference to .init.text:pmac_find_ide_boot (between 'note_bootable_part' and 'note_scsi_host') >From ppc64_defconfig: WARNING: vmlinux.o(.text+0x3acdc): Section mismatch: reference to .init.text:.pmac_find_ide_boot (between '.note_bootable_part' and '.note_scsi_host') >From prpmc2800_defconfig: WARNING: vmlinux.o(.text+0x1611e): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') WARNING: vmlinux.o(.text+0x16126): Section mismatch: reference to .init.data:boot_command_line (between 'note_bootable_part' and 'find_via_pmu') Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Add an optional device_node pointer to the irq_hostMichael Ellerman2007-09-141-1/+1
| | | | | | | | | | | | | | | | | | | | The majority of irq_host implementations (3 out of 4) are associated with a device_node, and need to stash it somewhere. Rather than having it somewhere different for each host, add an optional device_node pointer to the irq_host structure. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Remove old includes from arch/ppcKumar Gala2007-08-221-1/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Remove includes of files that existed in arch/ppc that we dont need in arch/powerpc anymore. The following includes were removed: <asm/amigappc.h> <asm/bootinfo.h> <asm/ppcboot.h> <asm/ppc_sys.h> <asm/residual.h> <asm/m8260_pci.h> This also caused platforms/embedded6xx/mpc7448_hpc2.h to no longer be needed and thus removed. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* | [POWERPC] Remove some duplicate declarations from pmac.hStephen Rothwell2007-08-171-4/+0
| | | | | | | | | | Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Fix section mismatches in udbg_adb.cStephen Rothwell2007-08-171-2/+2
| | | | | | | | | | | | | | | | | | | | | | The functions are only called from __init functions. WARNING: vmlinux.o(.text+0x45ed0): Section mismatch: reference to .init.text:.btext_find_display (between '.udbg_adb_init_early' and '.udbg_adb_init') WARNING: vmlinux.o(.text+0x45f9c): Section mismatch: reference to .init.text:.btext_find_display (between '.udbg_adb_init' and '.udbg_adb_getc_poll') WARNING: vmlinux.o(.text+0x46000): Section mismatch: reference to .init.text:.find_via_pmu (between '.udbg_adb_init' and '.udbg_adb_getc_poll') Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Remove gratuitous reads from powermac pci config space methodsNathan Lynch2007-08-171-9/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The powermac pci configuration space write methods read the written location immediately after the write is performed, presumably in order to flush the write. However, configuration space writes are not allowed to be posted, making these reads gratuitous. Furthermore, this behavior potentially causes us to violate the PCI PM spec when changing between e.g. D0 and D3 states, because a delay of up to 10ms may be required before the OS accesses configuration space after the write which initiates the transition. Remove the unnecessary reads from macrisc_write_config, u3_ht_write_config, and u4_pcie_write_config. Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] powermac pci_ops: Use named structure member initializersNathan Lynch2007-08-171-8/+8
| | | | | | | | | | Signed-off-by: Nathan Lynch <ntl@pobox.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Clean out a bunch of duplicate includesJesper Juhl2007-08-172-2/+0
|/ | | | | | | | This removes several duplicate includes from arch/powerpc/. Signed-off-by: Jesper Juhl <jesper.juhl@gmail.com> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix a compile warning in powermac/feature.cSegher Boessenkool2007-08-031-2/+4
| | | | | | | ...by using the pci_get API instead of the deprecated old stuff. Signed-off-by: Segher Boessenkool <segher@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge branch 'for-2.6.23' into mergePaul Mackerras2007-07-113-54/+16
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| * [POWERPC] powermac i2c: Use mutexJohannes Berg2007-07-101-11/+12
| | | | | | | | | | | | | | | | | | Convert the semaphores in low_i2c that are used as mutexes to real mutexes. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * [POWERPC] Merge ppc32 and ppc64 pcibios_alloc_controller() prototypesKumar Gala2007-06-291-6/+0
| | | | | | | | | | | | | | Make the ppc32 pcibios_alloc_controller take a device node to match the ppc64 prototypes and have it set arch_data. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
| * [POWERPC] disallow building powermac and tsi108 without PCIArnd Bergmann2007-06-291-0/+1
| | | | | | | | | | | | | | | | | | | | | | The TSI108 code and the 32 bit powermac and chrp platforms have dependency on PCI that is not easy or desirable to get rid of. The easiest fix is to always select CONFIG_PCI if one of those platforms is enabled. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * [POWERPC] rename add_bridge to avoid namespace clashesArnd Bergmann2007-06-291-5/+3
| | | | | | | | | | | | | | | | | | Many platforms currently define their own add_bridge function, some of them globally. This breaks some multiplatform configurations. Prefixing each of these functions with the platform name avoids this problem. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
| * [POWERPC] Rewrite IO allocation & mapping on powerpc64Benjamin Herrenschmidt2007-06-141-32/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This rewrites pretty much from scratch the handling of MMIO and PIO space allocations on powerpc64. The main goals are: - Get rid of imalloc and use more common code where possible - Simplify the current mess so that PIO space is allocated and mapped in a single place for PCI bridges - Handle allocation constraints of PIO for all bridges including hot plugged ones within the 2GB space reserved for IO ports, so that devices on hotplugged busses will now work with drivers that assume IO ports fit in an int. - Cleanup and separate tracking of the ISA space in the reserved low 64K of IO space. No ISA -> Nothing mapped there. I booted a cell blade with IDE on PIO and MMIO and a dual G5 so far, that's it :-) With this patch, all allocations are done using the code in mm/vmalloc.c, though we use the low level __get_vm_area with explicit start/stop constraints in order to manage separate areas for vmalloc/vmap, ioremap, and PCI IOs. This greatly simplifies a lot of things, as you can see in the diffstat of that patch :-) A new pair of functions pcibios_map/unmap_io_space() now replace all of the previous code that used to manipulate PCI IOs space. The allocation is done at mapping time, which is now called from scan_phb's, just before the devices are probed (instead of after, which is by itself a bug fix). The only other caller is the PCI hotplug code for hot adding PCI-PCI bridges (slots). imalloc is gone, as is the "sub-allocation" thing, but I do beleive that hotplug should still work in the sense that the space allocation is always done by the PHB, but if you unmap a child bus of this PHB (which seems to be possible), then the code should properly tear down all the HPTE mappings for that area of the PHB allocated IO space. I now always reserve the first 64K of IO space for the bridge with the ISA bus on it. I have moved the code for tracking ISA in a separate file which should also make it smarter if we ever are capable of hot unplugging or re-plugging an ISA bridge. This should have a side effect on platforms like powermac where VGA IOs will no longer work. This is done on purpose though as they would have worked semi-randomly before. The idea at this point is to isolate drivers that might need to access those and fix them by providing a proper function to obtain an offset to the legacy IOs of a given bus. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | [POWERPC] Fix powermac late initcall to only run on powermacTony Breeds2007-06-201-0/+3
|/ | | | | | | | | | | | | | | | | | | | | | | | | | | Current ppc64_defconfig kernel fails to boot on iSeries, dying with: Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xc00000000071b258 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=32 iSeries <snip> NIP [c00000000071b258] .iSeries_src_init+0x34/0x64 LR [c000000000701bb4] .kernel_init+0x1fc/0x3bc Call Trace: [c000000007d0be30] [0000000000008000] 0x8000 (unreliable) [c000000007d0bea0] [c000000000701bb4] .kernel_init+0x1fc/0x3bc [c000000007d0bf90] [c0000000000262d4] .kernel_thread+0x4c/0x68 Instruction dump: e922cba8 3880ffff 78840420 f8010010 f821ff91 60000000 e8090000 78095fe3 4182002c e922cb58 e862cbb0 e9290140 <e8090000> f8410028 7c0903a6 e9690010 Kernel panic - not syncing: Attempted to kill init! This happens because some powermac code unconditionally sets ppc_md.progress to NULL. This patch makes sure the powermac late initcall is only run on powermac machines. Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix per-cpu allocation on oldworld SMP powermacsPaul Mackerras2007-06-142-2/+12
| | | | | | | | | | | | The per-cpu area(a) for the secondary CPU(s) isn't getting allocated on old SMP powermacs that don't have the secondary CPU(s) listed in the device tree, as per-cpu areas are now only allocated for CPUs in the cpu_possible_map, and we aren't setting the bits for the secondary CPU(s) until smp_prepare_cpus(), which is after per-cpu allocation. Therefore this sets the bits for CPUs 1..3 in cpu_possible_map in pmac_setup_arch, so they get per-cpu data allocated. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Fix Section mismatch warningsLi Yang2007-05-231-1/+1
| | | | | | | | | | | This patch fix the following Section mismatch warnings in powerpc code. WARNING: arch/powerpc/platforms/built-in.o - Section mismatch: reference to .init.data:mv643xx_eth_pd_devs from .text between 'mv643xx_eth_add_pds' (at offset 0x9ed2) and 'gg2_read_config' WARNING: arch/powerpc/platforms/built-in.o - Section mismatch: reference to .init.data:mv643xx_eth_pd_devs from .text between 'mv643xx_eth_add_pds' (at offset 0x9ed6) and 'gg2_read_config' WARNING: arch/powerpc/platforms/built-in.o - Section mismatch: reference to .init.text:note_scsi_host from __ksymtab between '__ksymtab_note_scsi_host' (at offset 0x8) and '__ksymtab_sys_ctrler' Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* Merge branch 'master' of ↵Linus Torvalds2007-05-088-110/+101
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (77 commits) [POWERPC] Abolish powerpc_flash_init() [POWERPC] Early serial debug support for PPC44x [POWERPC] Support for the Ebony 440GP reference board in arch/powerpc [POWERPC] Add device tree for Ebony [POWERPC] Add powerpc/platforms/44x, disable platforms/4xx for now [POWERPC] MPIC U3/U4 MSI backend [POWERPC] MPIC MSI allocator [POWERPC] Enable MSI mappings for MPIC [POWERPC] Tell Phyp we support MSI [POWERPC] RTAS MSI implementation [POWERPC] PowerPC MSI infrastructure [POWERPC] Rip out the existing powerpc msi stubs [POWERPC] Remove use of 4level-fixup.h for ppc32 [POWERPC] Add powerpc PCI-E reset API implementation [POWERPC] Holly bootwrapper [POWERPC] Holly DTS [POWERPC] Holly defconfig [POWERPC] Add support for 750CL Holly board [POWERPC] Generalize tsi108 PCI setup [POWERPC] Generalize tsi108 PHY types ... Fixed conflict in include/asm-powerpc/kdebug.h manually Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
| * Merge branch 'linux-2.6'Paul Mackerras2007-05-081-1/+0
| |\
| * | [POWERPC] Rename device_is_compatible to of_device_is_compatibleStephen Rothwell2007-05-077-37/+37
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | for consistency with other Open Firmware interfaces (and Sparc). This is just a straight replacement. This leaves the compatibility define in place. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [POWERPC] powermac: Support G5 CPU hotplugJohannes Berg2007-05-072-4/+60
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This allows "hotplugging" of CPUs on G5 machines. CPUs that are disabled are put into an idle loop with the decrementer frequency set to minimum. To wake them up again we kick them just like when bringing them up. To stop those CPUs from messing with any global state we stop them from entering the timer interrupt. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [POWERPC] Fix suspend states againJohannes Berg2007-05-021-65/+0
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In commit 0fba3a1f39f8b0a50b56c8b068fa52131cbc84c2 (a very long time ago, May 2006), I fixed a bug that caused powermacs to crash when you tried entering standby/mem suspend states. As I'm now getting more familiar with the suspend code I notice a few more things: 1. we previously misunderstood what pm_ops is for, it isn't supposed to be for doing platform dependent suspend/resume stuff that needs to be done for suspend to disk (as we currently try to use it!), it is instead for entering platform dependent suspend states ("standby", "mem"). 2. due to the first point, we never properly save FPU and altivec states when suspending to disk. It probably hasn't hurt yet because the process that writes the "disk" to /sys/power/state uses neither and its context is used. This patch addresses these points as follows: 1. remove all pm_ops from powermac, powermac suspend to ram isn't currently usable via /sys/power/state but is done via the PMU instead. 2. move the code responsible for storing FPU/altivec state into save_processor_state and the set_context() call to restore_processor_state. 3. add a call to kernel_enable_spe() It may look like there is some code removal missing but that is actually because the new suspend.h file overrides the ppc/suspend.h one which was previously used. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
| * | [POWERPC] powermac: Fix G5-cpufreq for cpu on/offlineJohannes Berg2007-05-021-4/+4
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The original code here is wrong, it applies "previous" knowledge. The way the cpufreq core is designed is that the policy for the secondary CPU that comes online says that it must in fact not use this policy but use the same as the other CPUs that are listed, which in fact is CPU#0. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* | | header cleaning: don't include smp_lock.h when not usedRandy Dunlap2007-05-081-1/+0
| |/ |/| | | | | | | | | | | | | | | | | | | | | Remove includes of <linux/smp_lock.h> where it is not used/needed. Suggested by Al Viro. Builds cleanly on x86_64, i386, alpha, ia64, powerpc, sparc, sparc64, and arm (all 59 defconfigs). Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* | i2c: Cleanup the includes of <linux/i2c.h>Jean Delvare2007-05-011-1/+0
|/ | | | | | | Clean up the includes of <linux/i2c.h>. Only include this header file when we actually need it. Signed-off-by: Jean Delvare <khali@linux-fr.org>
* [POWERPC] Generic check_legacy_ioportOlaf Hering2007-04-271-10/+0
| | | | | | | | | | | check_legacy_ioport makes only sense on PREP, CHRP and pSeries. They may have an isa node with PS/2, parport, floppy and serial ports. Remove the check_legacy_ioport call from ppc_md, it's not needed anymore. Hardware capabilities come from the device-tree. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [POWERPC] Remove old interface find_devicesStephen Rothwell2007-04-245-39/+66
| | | | | | | Replace uses with of_find_node_by_name and for_each_node_by_name. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
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