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* powerpc/pci: clean up direct access to sysdata by iseries platformKumar Gala2009-05-212-5/+5
| | | | | | | | | | We shouldn't directly access sysdata to get the device node. We should be calling pci_device_to_OF_node(). Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Tested-by: Stephen Rothwell <sfr@canb.auug.org.au> Acked-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Keep track of emulated instructionsGeert Uytterhoeven2009-05-214-6/+196
| | | | | | | | | | | | If CONFIG_PPC_EMULATED_STATS is enabled, make available counters for the various classes of emulated instructions under /sys/kernel/debug/powerpc/emulated_instructions/ (assumed debugfs is mounted on /sys/kernel/debug). Optionally (controlled by /sys/kernel/debug/powerpc/emulated_instructions/do_warn), rate-limited warnings can be printed to the console when instructions are emulated. Signed-off-by: Geert Uytterhoeven <Geert.Uytterhoeven@sonycom.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/xmon: Add dl command to dump contents of __log_bufVinay Sridhar2009-05-211-0/+47
| | | | | | | | | | | | | | Hello All, Quite a while back Michael Ellerman had posted a patch to add support to xmon to print the contents of the console log pointed to by __log_buf. Here's the link to that patch - http://ozlabs.org/pipermail/linuxppc64-dev/2005-March/003657.html I've ported the patch in the above link to 2.6.30-rc5 and have tested it. Thanks & regards, Vinay Signed-off-by: Michael Ellerman <michael at ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Use sg->dma_length in sg_dma_len() macro on 32-bitBecky Bruce2009-05-211-5/+1
| | | | | | | | | | | | Currently, the 32-bit code uses sg->length instead of sg->dma_lentgh to report sg_dma_len. However, since the default dma code for 32-bit (the dma_direct case) sets dma_length and length to the same thing, we should be able to use dma_length there as well. This gets rid of some 32-vs-64-bit ifdefs, and is needed by the swiotlb code which actually distinguishes between dma_length and length. Signed-off-by: Becky Bruce <beckyb@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/spufs: Remove double check for non-negative dentryJan Blunck2009-05-211-4/+0
| | | | | | | | | | This patch removes an unnecessary double check if the dentry returned by lookup_create() is actually non-negative. Since lookup_create() itself returns an error in this case just remove the check. Signed-off-by: Jan Blunck <jblunck@suse.de> Signed-off-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Improve decrementer accuracyAnton Blanchard2009-05-211-3/+18
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | I have been looking at sources of OS jitter and notice that after a long NO_HZ idle period we wakeup too early: relative time (us) event timer irq exit 999946.405 timer irq entry 4.835 timer irq exit 21.685 timer irq entry 3.540 timer (tick_sched_timer) entry Here we slept for just under a second then took a timer interrupt that did nothing. 21.685 us later we wake up again and do the work. We set a rather low shift value of 16 for the decrementer clockevent, which I think is causing this issue. On this box we have a 207MHz decrementer and see: clockevent: decrementer mult[3501] shift[16] cpu[0] For calculations of large intervals this mult/shift combination could be off by a significant amount. I notice the sparc code has a loop that iterates to find a mult/shift combination that maximises the shift value while keeping mult under 32bit. With the patch below we get: clockevent: decrementer mult[35015c20] shift[32] cpu[15] And we no longer see the spurious wakeups. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Remove redundant pcnet32 fixupKumar Gala2009-05-212-21/+0
| | | | | | | | | The pcnet32 driver has had in its device id table for some time a match against the "broken" vendor ID. No need to fake out the vendor ID with an explicit fixup. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Cleanup some minor cruftKumar Gala2009-05-213-15/+0
| | | | | | | | | | * Removed building setup-irq on ppc32, we don't use it anymore * Remove duplicate prototype for setup_grackle() code that needs it gets it from <asm/grackle.h> * Removed gratuitous pci_io_size type differences between ppc32/ppc64 Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Move pseries code into pseries platform specific areaKumar Gala2009-05-213-27/+27
| | | | | | | | | There doesn't appear to be any specific reason that we need to setup the pseries specific notifier in generic arch pci code. Move it into pseries land. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by celleb platformsKumar Gala2009-05-213-29/+6
| | | | | | | | | We shouldn't directly access sysdata to get the device node to just go get the pci_controller. We can call pci_bus_to_host() for this purpose. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by RTASKumar Gala2009-05-211-8/+2
| | | | | | | | We shouldn't directly access sysdata to get the device node but call pci_bus_to_OF_node() for this purpose. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by powermac platformsKumar Gala2009-05-211-1/+1
| | | | | | | | We shouldn't directly access sysdata to get the device node but call pci_bus_to_OF_node() for this purpose. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata on tsi108 platformsKumar Gala2009-05-211-2/+2
| | | | | | | | | | We shouldn't directly access sysdata to get the pci_controller. Instead use pci_bus_to_host() for this purpose. In the future we might have sysdata be a device_node to match ppc64 and unify the code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by CHRP platformsKumar Gala2009-05-211-4/+4
| | | | | | | | | | We shouldn't directly access sysdata to get the pci_controller. Instead use pci_bus_to_host() for this purpose. In the future we might have sysdata be a device_node to match ppc64 and unify the code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by 4xx platformsKumar Gala2009-05-211-2/+2
| | | | | | | | | | We shouldn't directly access sysdata to get the pci_controller. Instead use pci_bus_to_host() for this purpose. In the future we might have sysdata be a device_node to match ppc64 and unify the code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by 52xx platformsKumar Gala2009-05-212-4/+4
| | | | | | | | | | We shouldn't directly access sysdata to get the pci_controller. Instead use pci_bus_to_host() for this purpose. In the future we might have sysdata be a device_node to match ppc64 and unify the code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by FSL platformsKumar Gala2009-05-211-3/+3
| | | | | | | | | | We shouldn't directly access sysdata to get the pci_controller. Instead use pci_bus_to_host() for this purpose. In the future we might have sysdata be a device_node to match ppc64 and unify the code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pci: Clean up direct access to sysdata by indirect opsKumar Gala2009-05-211-2/+2
| | | | | | | | | | We shouldn't directly access sysdata to get the pci_controller. Instead use pci_bus_to_host() for this purpose. In the future we might have sysdata be a device_node to match ppc64 and unify the code between ppc32 & ppc64. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Add 2.06 tlbie mnemonicsMilton Miller2009-05-214-4/+24
| | | | | | | | | | | This adds the PowerPC 2.06 tlbie mnemonics and keeps backwards compatibilty for CPUs before 2.06. Only useful for bare metal systems. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Enable MMU feature sections for inline asmMilton Miller2009-05-211-5/+20
| | | | | | | | | | powerpc: Enable MMU feature sections for inline asm This adds the ability to do MMU feature sections for inline asm. Signed-off-by: Milton Miller <miltonm@bga.com> Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Move VSX load/stores into ppc-opcode.hMichael Neuling2009-05-212-10/+13
| | | | | | | | | Cleans up the VSX load/store instructions by moving them into ppc-opcode.h. 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>
* powerpc: Cleanup macros in ppc-opcode.hMichael Neuling2009-05-211-4/+4
| | | | | | | | Make macros more braces happy. 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>
* powerpc: Fix up elf_read_implies_exec() usageKumar Gala2009-05-211-2/+2
| | | | | | | | | We believe if a toolchain supports PT_GNU_STACK that it sets the proper PHDR permissions. Therefor elf_read_implies_exec() should only be true if we don't see PT_GNU_STACK set. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/irq: We don't need __do_IRQ() anymoreMichael Ellerman2009-05-211-0/+4
| | | | | | | So select GENERIC_HARDIRQS_NO__DO_IRQ to disable it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/powermac: Use generic_handle_irq() in gatwick_action()Michael Ellerman2009-05-211-1/+1
| | | | | | | | Don't call __do_IRQ() directly in gatwick_action(), use generic_handle_irq(). Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/irq: Remove fallback to __do_IRQ()Michael Ellerman2009-05-211-6/+1
| | | | | | | | We should no longer have any irq code that needs __do_IRQ(), so remove the fallback to __do_IRQ(). Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/irq: Move get_irq() comment into headerMichael Ellerman2009-05-212-7/+4
| | | | | | | | The guts of do_IRQ() isn't really the right place to be documenting the ppc_md.get_irq() interface. So move the comment into machdep.h Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/irq: Move stack overflow check into a separate functionMichael Ellerman2009-05-211-14/+17
| | | | | | | Makes do_IRQ() shorter and clearer. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/irq: Move #ifdef'ed body of do_IRQ() into a separate functionMichael Ellerman2009-05-211-40/+56
| | | | | | | | | Rather than a giant ifdef in the body of do_IRQ(), including a dangling else, move the irq stack logic into a separate routine and do the ifdef there. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/ps3: Use smp_request_message_ipiGeoff Levand2009-05-211-15/+1
| | | | | | | | | | | ps3 has 4 ipis per cpu and can use the new smp_request_message_ipi to reduce path length when receiving an ipi. This has the side effect of setting IRQF_PERCPU. Signed-off-by: Milton Miller <miltonm@bga.com> Acked-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/pseries: CMO unused page hintingRobert Jennings2009-05-213-0/+64
| | | | | | | | | | | | | | | Adds support for the "unused" page hint which can be used in shared memory partitions to flag pages not in use, which will then be stolen before active pages by the hypervisor when memory needs to be moved to LPARs in need of additional memory. Failure to mark pages as 'unused' makes the LPAR slower to give up unused memory to other partitions. This adds the kernel parameter 'cmo_free_hint' to disable this functionality. Signed-off-by: Brian King <brking@linux.vnet.ibm.com> Signed-off-by: Robert Jennings <rcj@linux.vnet.ibm.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/mpic: Cleanup mpic_find() implementationTony Breeds2009-05-211-12/+11
| | | | | | | | | | | | | | mpic_find() was overloaded to do two things, finding the mpic instance for a given interrupt and returning if it's an IPI. Instead we introduce mpic_is_ipi() and simplify mpic_find() to just return the mpic instance Also silences the warning: arch/powerpc/sysdev/mpic.c: In function 'mpic_irq_set_priority': arch/powerpc/sysdev/mpic.c:1382: warning: 'is_ipi' may be used uninitialized in this function Signed-off-by: Tony Breeds <tony@bakeyournoodle.com> Acked-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc: Update Warp to use leds-gpio driverSean MacLennan2009-05-212-55/+48
| | | | | | | | | | | | Now that leds-gpio is a proper OF platform driver, the Warp can use the leds-gpio driver rather than the old out-of-kernel driver. One side-effect is the leds-gpio driver always turns the leds off while the old driver left them alone. So we have to set them back to the correct settings. Signed-off-by: Sean MacLennan <smaclennan@pikatech.com> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
* powerpc/fsl: Setup PCI inbound window based on actual amount of memoryKumar Gala2009-05-192-21/+115
| | | | | | | | | | | | Previouslly we just always set the inbound window to 2G. This was broken for systems with >2G. If a system has >=4G we will need SWIOTLB support to handle that case. We now allocate PCICSRBAR/PEXCSRBAR right below the lowest PCI outbound address for MMIO or the 4G boundary (if the lowest PCI address is above 4G). Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Add P2020DS board supportKumar Gala2009-05-195-5/+747
| | | | | | | | | | | | | | | | | | | The P2020 is a dual e500v2 core based SOC with: * 3 PCIe controllers * 2 General purpose DMA controllers * 2 sRIO controllers * 3 eTSECS * USB 2.0 * SDHC * SPI, I2C, DUART * enhanced localbus * and optional Security (P2020E) security w/XOR acceleration The p2020 DS reference board is pretty similar to the existing MPC85xx DS boards and has a ULI 1575 connected on one of the PCIe controllers. Signed-off-by: Ted Peters <Ted.Peters@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/fsl: Update FSL esdhc bindingKumar Gala2009-05-191-3/+2
| | | | | | | Updated the binding spec to use "fsl,eshdc" as the base compatible rather than the first chip in the family. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* rapidio: fix section mismatch warningsLi Yang2009-05-191-3/+3
| | | | | Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/fsl_rio: use LAW address from device treeLi Yang2009-05-191-5/+7
| | | | | | | Instead of fixed address in old code. Signed-off-by: Li Yang <leoli@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/fsl_rio: Fix compile warningsKumar Gala2009-05-191-2/+1
| | | | | | | | | | We we build with resource_size_t as a 64-bit quantity we get: arch/powerpc/sysdev/fsl_rio.c: In function 'fsl_rio_setup': arch/powerpc/sysdev/fsl_rio.c:1029: warning: format '%08x' expects type 'unsigned int', but argument 4 has type 'resource_size_t' arch/powerpc/sysdev/fsl_rio.c:1029: warning: format '%08x' expects type 'unsigned int', but argument 5 has type 'resource_size_t' Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/8xxx: Update PCI outbound window addresses for 36-bit configsKumar Gala2009-05-192-19/+19
| | | | | | | | | | | | | In these configuration we expect to have large amounts of memory (> 4G) and thus will bounce via swiotlb some region of PCI address space. The outbound windows were wasting 512M of address space by leaving a gap between the top of the outbound window and the 4G boundary. By moving the top of the outbound window up to the 4G boundary we can reclaim the vast majority of the 512M (minus space needed for PEXCSRBAR) and thus reduces the amount of memory we have to bounce. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/fsl: Support unique MSI addresses per PCIe Root ComplexKumar Gala2009-05-191-2/+7
| | | | | | | | | | Its feasible based on how the PCI address map is setup that the region of PCI address space used for MSIs differs for each PHB on the same SoC. Instead of assuming that the address mappes to CCSRBAR 1:1 we read PEXCSRBAR (BAR0) for the PHB that the given pci_dev is on. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Add MSI nodes for MPC8568/9 MDS systemsKumar Gala2009-05-192-0/+32
| | | | | | The MPC8568/9 chips support MSIs on PCIe so no reason not to enable them. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* fsldma: Fix compile warningsKumar Gala2009-05-191-6/+7
| | | | | | | | | | | | | | | We we build with dma_addr_t as a 64-bit quantity we get: drivers/dma/fsldma.c: In function 'fsl_chan_xfer_ld_queue': drivers/dma/fsldma.c:625: warning: cast to pointer from integer of different size drivers/dma/fsldma.c: In function 'fsl_dma_chan_do_interrupt': drivers/dma/fsldma.c:737: warning: cast to pointer from integer of different size drivers/dma/fsldma.c:737: warning: cast to pointer from integer of different size drivers/dma/fsldma.c: In function 'of_fsl_dma_probe': drivers/dma/fsldma.c:927: warning: cast to pointer from integer of different Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Acked-by: Dan Williams <dan.j.williams@intel.com>
* powerpc/85xx: Add STMicro M25P40 serial flash support for MPC8569E-MDSAnton Vorontsov2009-05-192-3/+24
| | | | | | | | | | | | For serial flash support we need to: - Add QE Par IO Bank E device tree node, a GPIO from this bank is used for SPI chip-select line; - Add serial-flash node; - Add proper module alias into of/base.c. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Enable Serial RapidIO for MPC85xx MDS boardsAnton Vorontsov2009-05-193-0/+35
| | | | | | | | Select HAS_RAPIDIO symbol and add rio nodes for MPC8568E-MDS and MPC8569E-MDS boards. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Add eSDHC support for MPC8569E-MDS boardsAnton Vorontsov2009-05-191-0/+10
| | | | | | | | | | Note that eSDHC and DUART0 are mutually exclusive on MPC8569E-MDS boards. Default option is DUART0, so eSDHC is disabled by default. U-Boot will fixup device tree if eSDHC should be used instead of DUART0. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Fix reg & interrupts for mpc8569emds localbus added NANDAnton Vorontsov2009-05-191-2/+9
| | | | | | | | | | This patch fixes bogus reg = <> property in the localbus node, and fixes interrupt property (should be "interrupts"). Also add node for NAND support. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Fix mpc8569emds crypto node to include SNOW unitAnton Vorontsov2009-05-191-1/+1
| | | | | | | | fsl,exec-units-mask should be 0xbfe to include SNOW unit in MPC8569E's security engine. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/85xx: Add PCI IDs for MPC8569 family processorsAnton Vorontsov2009-05-192-0/+4
| | | | | | | | | This patch adds PCI IDs for MPC8569 and MPC8569E processors, plus adds appropriate quirks for these IDs, and thus makes PCI-E actually work on MPC8569E-MDS boards. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
* powerpc/fsl: Removed reg property from 85xx/86xx soc nodeKumar Gala2009-05-1930-30/+0
| | | | | | | | | | | Between the addition of the ecm/mcm law nodes and the fact that the get_immrbase() has been using the range property of the SoC to determine the base address of CCSR space we no longer need the reg property at the soc node level. It has been ill specified and varied between device trees to cover either the {e,m}cm-law node, some odd subset of CCSR space or all of CCSR space. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
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