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2006-10-07[POWERPC] Fix viocons for irq breakageStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07[POWERPC] Update iseries_defconfigStephen Rothwell
This make sure that an iseries_defconfig does not inlude other platforms. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07[POWERPC] Fix fsl_soc build breaksOlof Johansson
Hrm, there's no way this ever built at time of merge. There's a missing } and the wrong type on phy_irq. Also, another const for get_property(). CC arch/powerpc/sysdev/fsl_soc.o arch/powerpc/sysdev/fsl_soc.c: In function 'fs_enet_of_init': arch/powerpc/sysdev/fsl_soc.c:625: error: assignment of read-only variable 'phy_irq' arch/powerpc/sysdev/fsl_soc.c:625: warning: assignment makes integer from pointer without a cast arch/powerpc/sysdev/fsl_soc.c:661: warning: assignment discards qualifiers from pointer target type arch/powerpc/sysdev/fsl_soc.c:684: error: subscripted value is neither array nor pointer arch/powerpc/sysdev/fsl_soc.c:687: error: subscripted value is neither array nor pointer arch/powerpc/sysdev/fsl_soc.c:722: warning: ISO C90 forbids mixed declarations and code arch/powerpc/sysdev/fsl_soc.c:728: error: invalid storage class for function 'cpm_uart_of_init' arch/powerpc/sysdev/fsl_soc.c:798: error: initializer element is not constant arch/powerpc/sysdev/fsl_soc.c:798: error: expected declaration or statement at end of input make[1]: *** [arch/powerpc/sysdev/fsl_soc.o] Error 1 Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[POWERPC] Minor fix for bootargs propertyGeoff Levand
Avoid the use of an uninitialized stack variable when the powerpc device tree bootargs property is either missing or incorrectly defined. This also makes CONFIG_CMDLINE work properly under these conditions. This change adds a test for the existence of the bootargs property. early_init_dt_scan_chosen() tests for a zero length bootargs property in its CONFIG_CMDLINE processing, but the current implementation of of_get_flat_dt_prop() doesn't assign a value to the length when no property is found. Since an automatic variable is used, a stale value from the stack will be used in the test. Signed-off-by: Geoff Levand <geoffrey.levand@am.sony.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[POWERPC] Update MTFSF_L() commentAnton Blanchard
David Woodhouse points out that the comment accompanying the MTFSF_L macro is misleading. We should make it clear that the L bit is ignored on older CPUS, not the entire instruction. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[POWERPC] Update pSeries defconfig for SATABrian King
Since the ipr driver now supports SATA and depends on libata, enable libata to get built. Signed-off-by: Brian King <brking@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[POWERPC] Don't get PCI IRQ from OF for devices with no IRQBenjamin Herrenschmidt
This patch adds checking of the PCI_INTERRUPT_PIN register before using standard OF parsing to retreive PCI interrupts. The reason is that some PCI devices may have no PCI interrupt, though they may have interrupts attached via other means. In this case, we shall not use irq->pdev, but device-specific code can later retreive those interrupts instead. Without that patch, Maple and derivatives don't get the right interrupt for the second IDE channel as the linux IDE code fallsback to the PCI irq instead of trying to use the legacy ones for the on-board controller (which has no PCI_INTERRUPT_PIN). Having no PCI IRQ assign to it (as it doesn't request any) fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[POWERPC] Fix zImage decompress locationBenjamin Herrenschmidt
The zImage wrapper has a "hack" that force the decompression to happen above 20Mb for 64 bits kernels, to work around issues with some firmwares on the field. However, the new wrapper has a bug which makes that hack not work properly. This fixes it. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[POWERPC] linux,tce-size property is 32 bitsNathan Lynch
The "linux,tce-size" property is only 32 bits (see prom_initialize_tce_table() in arch/powerpc/kernel/prom_init.c). Treating it as an unsigned long in iommu_table_setparms() leads to access beyond the end of the property's buffer, so we pass garbage to the memset() in that function. [boot]0020 XICS Init i8259 legacy interrupt controller initialized [boot]0021 XICS Done PID hash table entries: 4096 (order: 12, 32768 bytes) cpu 0x0: Vector: 300 (Data Access) at [c0000000fe783850] pc: c000000000035e90: .memset+0x60/0xfc lr: c000000000044fa4: .iommu_table_setparms+0xb0/0x158 sp: c0000000fe783ad0 msr: 9000000000009032 dar: c000000100000000 dsisr: 42010000 current = 0xc00000000450e810 paca = 0xc000000000411580 pid = 1, comm = swapper enter ? for help [link register ] c000000000044fa4 .iommu_table_setparms+0xb0/0x158 [c0000000fe783ad0] c000000000044f4c .iommu_table_setparms+0x58/0x158 (unreliable) [c0000000fe783b70] c00000000004529c .iommu_bus_setup_pSeries+0x1c4/0x254 [c0000000fe783c00] c00000000002b8ac .do_bus_setup+0x3c/0xe4 [c0000000fe783c80] c00000000002c924 .pcibios_fixup_bus+0x64/0xd8 [c0000000fe783d00] c0000000001a2d5c .pci_scan_child_bus+0x6c/0x10c [c0000000fe783da0] c00000000002be28 .scan_phb+0x17c/0x1b4 [c0000000fe783e40] c0000000003cfa00 .pcibios_init+0x58/0x19c [c0000000fe783ec0] c0000000000094b4 .init+0x1e8/0x3d8 [c0000000fe783f90] c000000000026e54 .kernel_thread+0x4c/0x68 Signed-off-by: Nathan Lynch <ntl@pobox.com> Acked-by: Olof Johansson <olof@lixom.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[POWERPC] Add DTS for MPC8349E-mITX boardTimur Tabi
Add the DTS for the Freescale MPC 8349E-mITX reference board. Contact Vitesse for the driver for the VSC 7385. Signed-off-by: Timur Tabi <timur@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[POWERPC] Fix harmless typoNick Piggin
Fix a typo. Noticed by the unlikely profiler. Signed-off-by: Nick Piggin <npiggin@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[PPC] Fix some irq breakage with ARCH=ppcPaul Mackerras
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-05[PATCH] powerpc: irq change build breaksOlof Johansson
Fix up some of the buildbreaks from the irq handler changes. Signed-off-by: Olof Johansson <olof@lixom.net> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-05Merge git://git.infradead.org/~dhowells/irq-2.6Linus Torvalds
* git://git.infradead.org/~dhowells/irq-2.6: IRQ: Maintain regs pointer globally rather than passing to IRQ handlers IRQ: Typedef the IRQ handler function type IRQ: Typedef the IRQ flow handler function type
2006-10-05[PATCH] UDF: Fix mounting read-writePeter Osterlund
The UDF filesystem can't be mounted in read-write mode any more, because of forgotten braces. Signed-off-by: Peter Osterlund <petero2@telia.com> [ Duh! ] Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-05[PATCH] x86-64: Fix compilation without CONFIG_KALLSYMSRandy Dunlap
Include linux/kallsyms.h unconditionally for print_symbol(). Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-05Merge branch 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6Linus Torvalds
* 'for-linus' of git://one.firstfloor.org/home/andi/git/linux-2.6: [PATCH] i386: fix rwsem build bug on CONFIG_M386=y [PATCH] x86-64: Annotate interrupt frame backlink in interrupt handlers [PATCH] x86-64: Fix FPU corruption [PATCH] x86: Terminate the kernel stacks for the unwinder [PATCH] i386: Fix PCI BIOS config space access [PATCH] x86-64: Calgary IOMMU: print PCI bus numbers in hex [PATCH] x86-64: Calgary IOMMU: Update Jon's contact info [PATCH] x86-64: Calgary IOMMU: Fix off by one when calculating register space location [PATCH] x86-64: Calgary IOMMU: deobfuscate calgary_init [PATCH] i386: Update defconfig [PATCH] x86-64: Update defconfig [ Manually skipped commits that incorrectly ignored AC in kernel space. The alignment fault is defined to only happen for CPL3 anyway - Linus ]
2006-10-05[PATCH] fix qla{2,4} build errorFrederik Deweerdt
commit 0181944fe647cae18d545ac1167df3d15d393701 adds a 'extended_error_logging' global variable to qla2xxx which is defined by qla4xxx too. Trying to build both drivers results in the following error: LD drivers/scsi/built-in.o drivers/scsi/qla4xxx/built-in.o: In function `qla4xxx_slave_configure': drivers/scsi/qla4xxx/ql4_os.c:1433: multiple definition of `extended_error_logging' drivers/scsi/qla2xxx/built-in.o:drivers/scsi/qla2xxx/qla_os.c:2166: first defined here make[2]: *** [drivers/scsi/built-in.o] Error 1 make[1]: *** [drivers/scsi] Error 2 make: *** [drivers] Error 2 The following patch simply adds a qla2_ (qla4_ respectively) prefix to the variable name. Signed-off-by: Frederik Deweerdt <frederik.deweerdt@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-05[PATCH] i386: fix rwsem build bug on CONFIG_M386=yIngo Molnar
CONFIG_M386 turns on spinlock-based generic rwsems - which surprises the semaphore.S rwsem stubs. Tested both with and without CONFIG_M386. Reported-by: Klaus Knopper <knopper@knopper.net> Triaged-by: Adrian Bunk <bunk@stusta.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] x86-64: Annotate interrupt frame backlink in interrupt handlersAndi Kleen
Add correct CFI annotation to the backlink on top of the interrupt stack. Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] x86-64: Fix FPU corruptionAndi Kleen
This reverts an earlier patch that was found to cause FPU state corruption. I think the corruption happens because unlazy_fpu() can cause FPU exceptions and when it happens after the current switch some processing would affect the state in the wrong process. Thanks to Douglas Crosher and Tom Hughes for testing. Cc: jbeulich@novell.com Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] x86: Terminate the kernel stacks for the unwinderAndi Kleen
Always make sure RIP/EIP is 0 in the registers stored on the top of the stack of a kernel thread. This makes sure the unwinder code won't try a fallback but knows the stack has ended. AK: this patch is a bit mysterious. in theory they should be terminated anyways, but it seems to fix at least one crash. Anyways double termination probably doesn't hurt. Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] i386: Fix PCI BIOS config space accessAndi Kleen
Got broken by a earlier change. Also add a printk when no pci config method could be found. Cc: gregkh@suse.de Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] x86-64: Calgary IOMMU: print PCI bus numbers in hexJon Mason
Make the references to the bus number in hex instead of decimal, as that is the way that lspci prints out the bus numbers. Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] x86-64: Calgary IOMMU: Update Jon's contact infoJon Mason
Also add copyright for work done after leaving IBM. Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] x86-64: Calgary IOMMU: Fix off by one when calculating register ↵Jon Mason
space location The purpose of the code being modified is to determine the location of the calgary chip address space. This is done by a magical formula of FE0MB-8MB*OneBasedChassisNumber+1MB*(RioNodeId-ChassisBase) to find the offset where BIOS puts it. In this formula, OneBasedChassisNumber corresponds to the NUMA node, and rionodeid is always 2 or 3 depending on which chip in the system it is. The problem was that we had an off by one error that caused us to account some busses to the wrong chip and thus give them the wrong address space. Fixes RH bugzilla #203971. Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-bu: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] x86-64: Calgary IOMMU: deobfuscate calgary_initJon Mason
calgary_init's for loop does not correspond to the actual device being checked, which makes its upperbound check for array overflow useless. Changing this to a do-while loop is the correct way of doing this. There should be no possibility of spinning forever in this loop, as pci_get_device states that it will go through all iterations, then return NULL (thus breaking the loop). Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] i386: Update defconfigAndi Kleen
Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05[PATCH] x86-64: Update defconfigAndi Kleen
Signed-off-by: Andi Kleen <ak@suse.de>
2006-10-05IRQ: Maintain regs pointer globally rather than passing to IRQ handlersDavid Howells
Maintain a per-CPU global "struct pt_regs *" variable which can be used instead of passing regs around manually through all ~1800 interrupt handlers in the Linux kernel. The regs pointer is used in few places, but it potentially costs both stack space and code to pass it around. On the FRV arch, removing the regs parameter from all the genirq function results in a 20% speed up of the IRQ exit path (ie: from leaving timer_interrupt() to leaving do_IRQ()). Where appropriate, an arch may override the generic storage facility and do something different with the variable. On FRV, for instance, the address is maintained in GR28 at all times inside the kernel as part of general exception handling. Having looked over the code, it appears that the parameter may be handed down through up to twenty or so layers of functions. Consider a USB character device attached to a USB hub, attached to a USB controller that posts its interrupts through a cascaded auxiliary interrupt controller. A character device driver may want to pass regs to the sysrq handler through the input layer which adds another few layers of parameter passing. I've build this code with allyesconfig for x86_64 and i386. I've runtested the main part of the code on FRV and i386, though I can't test most of the drivers. I've also done partial conversion for powerpc and MIPS - these at least compile with minimal configurations. This will affect all archs. Mostly the changes should be relatively easy. Take do_IRQ(), store the regs pointer at the beginning, saving the old one: struct pt_regs *old_regs = set_irq_regs(regs); And put the old one back at the end: set_irq_regs(old_regs); Don't pass regs through to generic_handle_irq() or __do_IRQ(). In timer_interrupt(), this sort of change will be necessary: - update_process_times(user_mode(regs)); - profile_tick(CPU_PROFILING, regs); + update_process_times(user_mode(get_irq_regs())); + profile_tick(CPU_PROFILING); I'd like to move update_process_times()'s use of get_irq_regs() into itself, except that i386, alone of the archs, uses something other than user_mode(). Some notes on the interrupt handling in the drivers: (*) input_dev() is now gone entirely. The regs pointer is no longer stored in the input_dev struct. (*) finish_unlinks() in drivers/usb/host/ohci-q.c needs checking. It does something different depending on whether it's been supplied with a regs pointer or not. (*) Various IRQ handler function pointers have been moved to type irq_handler_t. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1b16e7ac850969f38b375e511e3fa2f474a33867 commit)
2006-10-05IRQ: Typedef the IRQ handler function typeDavid Howells
Typedef the IRQ handler function type. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 1356d1e5fd256997e3d3dce0777ab787d0515c7a commit)
2006-10-05IRQ: Typedef the IRQ flow handler function typeDavid Howells
Typedef the IRQ flow handler function type. Signed-Off-By: David Howells <dhowells@redhat.com> (cherry picked from 8e973fbdf5716b93a0a8c0365be33a31ca0fa351 commit)
2006-10-04Linux 2.6.19-rc1Linus Torvalds
Merge window closed..
2006-10-04[PATCH] itmtouch: fix inverted flag to indicate touch location correctly, ↵Mark Assad
correct white space There is a bug in the current version of the itmtouch USB touchscreen driver. The if statment that checks if pressure is being applied to the touch screen is now missing a ! (not), so events are no longer being reported correctly. The original source code for this line was as follows: #define UCP(x) ((unsigned char*)(x)) #define UCOM(x,y,z) ((UCP((x)->transfer_buffer)[y]) & (z)) ... if (!UCOM(urb, 7, 0x20)) { And was cleaned to: unsigned char *data = urb->transfer_buffer; .... if (data[7] & 0x20) { (note the lack of '!') This has been tested on an LG L1510BF and an LG1510SF touch screen. Signed-off-by: Mark Assad <massad@gmail.com> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-04Merge master.kernel.org:/pub/scm/linux/kernel/git/willy/parisc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/willy/parisc-2.6: [PA-RISC] Fix time.c for new do_timer() calling convention [PA-RISC] Fix must_check warnings in drivers.c [PA-RISC] Fix parisc_newuname() [PA-RISC] Remove warning from pci.c [PA-RISC] Fix filldir warnings [PA-RISC] Fix sys32_sysctl [PA-RISC] Fix sba_iommu compilation
2006-10-04Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: [POWERPC] cell: fix bugs found by sparse [POWERPC] spiderpic: enable new style devtree support [POWERPC] Update cell_defconfig [POWERPC] spufs: add infrastructure for finding elf objects [POWERPC] spufs: support new OF device tree format [POWERPC] spufs: add support for read/write on cntl [POWERPC] spufs: remove support for ancient firmware [POWERPC] spufs: make mailbox functions handle multiple elements [POWERPC] spufs: use correct pg_prot for mapping SPU local store [POWERPC] spufs: Add infrastructure needed for gang scheduling [POWERPC] spufs: implement error event delivery to user space [POWERPC] spufs: fix context switch during page fault [POWERPC] spufs: scheduler support for NUMA. [POWERPC] spufs: cell spu problem state mapping updates
2006-10-04Merge master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6Linus Torvalds
* master.kernel.org:/pub/scm/linux/kernel/git/jejb/scsi-misc-2.6: (54 commits) [SCSI] Initial Commit of qla4xxx [SCSI] raid class: handle component-add errors [SCSI] SCSI megaraid_sas: handle thrown errors [SCSI] SCSI aic94xx: handle sysfs errors [SCSI] SCSI st: fix error handling in module init, sysfs [SCSI] SCSI sd: fix module init/exit error handling [SCSI] SCSI osst: add error handling to module init, sysfs [SCSI] scsi: remove hosts.h [SCSI] scsi: Scsi_Cmnd convertion in aic7xxx_old.c [SCSI] megaraid_sas: sets ioctl timeout and updates version,changelog [SCSI] megaraid_sas: adds tasklet for cmd completion [SCSI] megaraid_sas: prints pending cmds before setting hw_crit_error [SCSI] megaraid_sas: function pointer for disable interrupt [SCSI] megaraid_sas: frame count optimization [SCSI] megaraid_sas: FW transition and q size changes [SCSI] qla2xxx: Update version number to 8.01.07-k2. [SCSI] qla2xxx: Stall mid-layer error handlers while rport is blocked. [SCSI] qla2xxx: Add MODULE_FIRMWARE tags. [SCSI] qla2xxx: Add support for host port state FC transport attribute. [SCSI] qla2xxx: Add support for fabric name FC transport attribute. ...
2006-10-05[PA-RISC] Fix time.c for new do_timer() calling conventionMatthew Wilcox
do_timer now wants to know how many ticks have elapsed. Now that we have to calculate that, we can eliminate some of the clever code that avoided having to calculate that. Also add some more documentation. I'd like to thank Grant Grundler for helping me with this. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
2006-10-05[PA-RISC] Fix must_check warnings in drivers.cMatthew Wilcox
Panic if we can't register the parisc bus or the root parisc device. There's no way we can boot without them, so let the user know ASAP. If we can't register a parisc device, handle the failure gracefully. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
2006-10-05[PA-RISC] Fix parisc_newuname()Matthew Wilcox
The utsname virtualisation broke parisc_newuname compilation. Rewrite the implementation to call sys_newuname() like sparc64 does. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
2006-10-05[PA-RISC] Remove warning from pci.cMatthew Wilcox
max() doesn't like comparing an unsigned long and a resource_size_t, so make the local variables resource_size_t too. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org>
2006-10-05[PA-RISC] Fix filldir warningsMatthew Wilcox
filldir_t now takes a u64, not an ino_t. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-05[PA-RISC] Fix sys32_sysctlMatthew Wilcox
When CONFIG_SYSCTL_SYSCALL isn't defined, do_sysctl doesn't exist and we fail to link. Fix with an ifdef, the same way sparc64 did. Also add some minor changes to be more like sparc64. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-05[PA-RISC] Fix sba_iommu compilationMatthew Wilcox
klist_iter_exit() only takes one parameter. Also fix warning by adding additional brackets. Signed-off-by: Matthew Wilcox <matthew@wil.cx>
2006-10-05[POWERPC] cell: fix bugs found by sparseArnd Bergmann
- Some long constants should be marked 'ul'. - When using desc->handler_data to pass an __iomem register area, we need to add casts to and from __iomem. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-05[POWERPC] spiderpic: enable new style devtree supportArnd Bergmann
This enables support for new firmware test releases. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-05[POWERPC] Update cell_defconfigArnd Bergmann
This adds defaults for new configuration options added since 2.6.18 and it enables the option for 64kb pages by default. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-05[POWERPC] spufs: add infrastructure for finding elf objectsArnd Bergmann
This adds an 'object-id' file that the spe library can use to store a pointer to its ELF object. This was originally meant for use by oprofile, but is now also used by the GNU debugger, if available. In order for oprofile to find the location in an spu-elf binary where an event counter triggered, we need a way to identify the binary in the first place. Unfortunately, that binary itself can be embedded in a powerpc ELF binary. Since we can assume it is mapped into the effective address space of the running process, have that one write the pointer value into a new spufs file. When a context switch occurs, pass the user value to the profiler so that can look at the mapped file (with some care). Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-05[POWERPC] spufs: support new OF device tree formatArnd Bergmann
The properties we used traditionally in the device tree are somewhat nonstandard. This adds support for a more conventional format using 'interrupts' and 'reg' properties. The interrupts are specified in three cells (class 0, 1 and 2) and registered at the interrupt-parent. The reg property contains either three or four register areas in the order 'local-store', 'problem', 'priv2', and 'priv1', so the priv1 one can be left out in case of hypervisor driven systems that access these through hcalls. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-05[POWERPC] spufs: add support for read/write on cntlArnd Bergmann
Writing to cntl can be used to stop execution on the spu and to restart it, reading from cntl gives the contents of the current status register. The access is always in ascii, as for most other files. This was always meant to be there, but we had a little problem with writing to runctl so it was left out so far. Signed-off-by: Arnd Bergmann <arnd.bergmann@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
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