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path: root/arch/powerpc/kernel/ppc_ksyms.c
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2008-09-24powerpc: Introduce local (non-broadcast) forms of tlb invalidatesKumar Gala
Introduced a new set of low level tlb invalidate functions that do not broadcast invalidates on the bus: _tlbil_all - invalidate all _tlbil_pid - invalidate based on process id (or mm context) _tlbil_va - invalidate based on virtual address (ea + pid) On non-SMP configs _tlbil_all should be functionally equivalent to _tlbia and _tlbil_va should be functionally equivalent to _tlbie. The intent of this change is to handle SMP based invalidates via IPIs instead of broadcasts as the mechanism scales better for larger number of cores. On e500 (fsl-booke mmu) based cores move to using MMUCSR for invalidate alls and tlbsx/tlbwe for invalidate virtual address. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2008-07-15Merge commit '85082fd7cbe3173198aac0eb5e85ab1edcc6352c' into test-buildBenjamin Herrenschmidt
Manual fixup of: arch/powerpc/Kconfig
2008-07-01powerpc: Add VSX context save/restore, ptrace and signal supportMichael Neuling
This patch extends the floating point save and restore code to use the VSX load/stores when VSX is available. This will make FP context save/restore marginally slower on FP only code, when VSX is available, as it has to load/store 128bits rather than just 64bits. Mixing FP, VMX and VSX code will get constant architected state. The signals interface is extended to enable access to VSR 0-31 doubleword 1 after discussions with tool chain maintainers. Backward compatibility is maintained. The ptrace interface is also extended to allow access to VSR 0-31 full registers. Signed-off-by: Michael Neuling <mikey@neuling.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-06-23Merge branch 'linus' into tracing/ftraceIngo Molnar
2008-06-16[POWERPC] Remove ppc32's export of console_driversStephen Rothwell
There are no in-tree uses of the export any more and in linux-next there is a change that exports it globally which causes warnings: WARNING: vmlinux: 'console_drivers' exported twice. Previous export was in vmlinux and in one case (mpc85xx_defconfig) a build error: kernel/built-in.o: In function `__crc_console_drivers': (*ABS*+0x1eb0e6f5): multiple definition of `__crc_console_drivers' So remove the export now. Also, there is no longer any need to include linux/console.h. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-05-26ftrace: powerpc clean upsSteven Rostedt
This patch cleans up the ftrace code in PowerPC based on the comments from Michael Ellerman. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Cc: Michael Ellerman <michael@ellerman.id.au> Cc: proski@gnu.org Cc: a.p.zijlstra@chello.nl Cc: Pekka Paalanen <pq@iki.fi> Cc: Steven Rostedt <srostedt@redhat.com> Cc: linuxppc-dev@ozlabs.org Cc: Soeren Sandmann Pedersen <sandmann@redhat.com> Cc: paulus@samba.org Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
2008-04-30Basic braille screen reader supportSamuel Thibault
This adds a minimalistic braille screen reader support. This is meant to be used by blind people e.g. on boot failures or when / cannot be mounted etc and thus the userland screen readers can not work. [akpm@linux-foundation.org: fix exports] Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org> Cc: Jiri Kosina <jikos@jikos.cz> Cc: Dmitry Torokhov <dtor@mail.ru> Acked-by: Alan Cox <alan@redhat.com> Cc: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2008-04-21Merge branch 'master' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc * 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (202 commits) [POWERPC] Fix compile breakage for 64-bit UP configs [POWERPC] Define copy_siginfo_from_user32 [POWERPC] Add compat handler for PTRACE_GETSIGINFO [POWERPC] i2c: Fix build breakage introduced by OF helpers [POWERPC] Optimize fls64() on 64-bit processors [POWERPC] irqtrace support for 64-bit powerpc [POWERPC] Stacktrace support for lockdep [POWERPC] Move stackframe definitions to common header [POWERPC] Fix device-tree locking vs. interrupts [POWERPC] Make pci_bus_to_host()'s struct pci_bus * argument const [POWERPC] Remove unused __max_memory variable [POWERPC] Simplify xics direct/lpar irq_host setup [POWERPC] Use pseries_setup_i8259_cascade() in pseries_mpic_init_IRQ() [POWERPC] Turn xics_setup_8259_cascade() into a generic pseries_setup_i8259_cascade() [POWERPC] Move xics_setup_8259_cascade() into platforms/pseries/setup.c [POWERPC] Use asm-generic/bitops/find.h in bitops.h [POWERPC] 83xx: mpc8315 - fix USB UTMI Host setup [POWERPC] 85xx: Fix the size of qe muram for MPC8568E [POWERPC] 86xx: mpc86xx_hpcn - Temporarily accept old dts node identifier. [POWERPC] 86xx: mark functions static, other minor cleanups ...
2008-04-18[POWERPC] irqtrace support for 64-bit powerpcBenjamin Herrenschmidt
This adds the low level irq tracing hooks to the powerpc architecture needed to enable full lockdep functionality. This is partly based on Johannes Berg's initial version. I removed the asm trampoline that isn't needed (thus improving performance) and modified all sorts of bits and pieces, reworking most of the assembly, etc... Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-04-17Generic semaphore implementationMatthew Wilcox
Semaphores are no longer performance-critical, so a generic C implementation is better for maintainability, debuggability and extensibility. Thanks to Peter Zijlstra for fixing the lockdep warning. Thanks to Harvey Harrison for pointing out that the unlikely() was unnecessary. Signed-off-by: Matthew Wilcox <willy@linux.intel.com> Acked-by: Ingo Molnar <mingo@elte.hu>
2008-04-07[POWERPC] Add hand-coded assembly strcmpSteven Rostedt
We have an assembly version of strncmp for the bootwrapper, but not for the kernel, so we end up using the C version in the kernel. This takes the strncmp code from the bootup and copies it to the kernel proper, adding two instructions so it copes correctly with len==0. Signed-off-by: Steven Rostedt <srostedt@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-03-26[POWERPC] Really export empty_zero_pageStephen Rothwell
It was being protected by CONFIG_PPC32, but we want to export it on 64-bit also. This moves it out of the ifdef. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-03-13[POWERPC] Export empty_zero_pageTheodore Ts'o
Once again, this time with feeling.... - Ted >From c91cfaabc17f8a53807a2f31f067a732e34a1550 Mon Sep 17 00:00:00 2001 From: Theodore Ts'o <tytso@mit.edu> Date: Wed, 12 Mar 2008 11:50:39 -0400 Subject: Export empty_zero_page The empty_zero_page symbol is exported by most other architectures (s390, ia64, x86, um), and an upcoming ext4 patch needs it because ZERO_PAGE() references empty_zero_page, and we need it to zero out an unitialized extents in ext4 files. Signed-off-by: "Theodore Ts'o" <tytso@mit.edu> Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-03-13[POWERPC] Add __ucmpdi2 for 64-bit comparisons in 32-bit kernelsPaul Mackerras
Some drivers (such as V4L2) have code that causes gcc to generate calls to __ucmpdi2 when compiling for 32-bit powerpc, which results in either a link-time error or a module that can't be loaded, as we don't currently have a __ucmpdi2. This adds one so these drivers can be used. Signed-off-by: Paul Mackerras <paulus@samba.org>
2008-01-25[POWERPC] Export copy_page() on 32bitJoseph Fannin
Export copy_page() on 32-bit powerpc; unionfs needs it. Unionfs already builds as a module on 64bit powerpc, so the export is placed within an existing CONFIG_PPC32 #ifdef. Signed-off-by: Joseph Fannin <jfannin@gmail.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-12-13[POWERPC] Kill non-existent symbols from ksyms and commproc.hJochen Friedrich
Remove exports of __res and cpm_install_handler/cpm_free_handler. Remove cpm_install_handler/cpm_free_handler from the commproc.h as well. Both were used for ARCH=ppc and aren't defined for ARCH=powerpc. CC arch/powerpc/kernel/ppc_ksyms.o arch/powerpc/kernel/ppc_ksyms.c:180: error: '__res' undeclared here (not in a function) arch/powerpc/kernel/ppc_ksyms.c:180: warning: type defaults to 'int' in declaration of '__res' make[1]: *** [arch/powerpc/kernel/ppc_ksyms.o] Error 1 make: *** [arch/powerpc/kernel] Error 2 LD .tmp_vmlinux1 arch/powerpc/kernel/built-in.o:(__ksymtab+0x198): undefined reference to `cpm_free_handler' arch/powerpc/kernel/built-in.o:(__ksymtab+0x1a0): undefined reference to `cpm_install_handler' make: *** [.tmp_vmlinux1] Error 1 Signed-off-by: Jochen Friedrich <jochen@scram.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Vitaly Bordug <vitb@kernel.crashing.org> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-09-22[POWERPC] Fix build errors when BLOCK=nEmil Medve
These are the symptom error messages: CC arch/powerpc/kernel/setup_32.o In file included from include/linux/blkdev.h:17, from include/linux/ide.h:13, from arch/powerpc/kernel/setup_32.c:13: include/linux/bsg.h:67: warning: 'struct request_queue' declared inside parameter list include/linux/bsg.h:67: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/bsg.h:71: warning: 'struct request_queue' declared inside parameter list In file included from arch/powerpc/kernel/setup_32.c:13: include/linux/ide.h:857: error: field 'wrq' has incomplete type CC arch/powerpc/kernel/ppc_ksyms.o In file included from include/linux/blkdev.h:17, from include/linux/ide.h:13, from arch/powerpc/kernel/ppc_ksyms.c:15: include/linux/bsg.h:67: warning: 'struct request_queue' declared inside parameter list include/linux/bsg.h:67: warning: its scope is only this definition or declaration, which is probably not what you want include/linux/bsg.h:71: warning: 'struct request_queue' declared inside parameter list In file included from arch/powerpc/kernel/ppc_ksyms.c:15: include/linux/ide.h:857: error: field 'wrq' has incomplete type The fix tries to use the smallest scope CONFIG_* symbols that will fix the build problem. In this case <linux/ide.h> needs to be included only if IDE=y or IDE=m were selected. Also, ppc_ide_md is needed only if BLK_DEV_IDE=y or BLK_DEV_IDE=m Moved the EXPORT_SYMBOL(ppc_ide_md) from ppc_ksysms.c next to its declaration in setup_32.c which made <linux/ide.h> not needed. With <linux/ide.h> gone from ppc_ksyms.c, <asm/cacheflush.h> is needed to address the following warnings and errors: CC arch/powerpc/kernel/ppc_ksyms.o arch/powerpc/kernel/ppc_ksyms.c:122: error: '__flush_icache_range' undeclared here (not in a function) arch/powerpc/kernel/ppc_ksyms.c:122: warning: type defaults to 'int' in declaration of '__flush_icache_range' arch/powerpc/kernel/ppc_ksyms.c:123: error: 'flush_dcache_range' undeclared here (not in a function) arch/powerpc/kernel/ppc_ksyms.c:123: warning: type defaults to 'int' in declaration of 'flush_dcache_range' Signed-off-by: Emil Medve <Emilian.Medve@Freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-08-20[POWERPC] Fix 40x buildJosh Boyer
Remove inclusion of __res on 40x. We don't need it in arch/powerpc Signed-off-by: Josh Boyer <jwboyer@linux.vnet.ibm.com> Acked-by: David Gibson <david@gibson.dropbear.id.au>
2007-07-10[POWERPC] Remove unused do_signal exportChristoph Hellwig
do_signal is never used in modular code (obviously), and no other architecture exports it either. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-06-29[POWERPC] Move pci_bus_to_hose users to pci_bus_to_hostKumar Gala
In the places we can move to using pci_bus_to_host, this allows us to make pci_bus_to_host static and remove its export. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-06-29[POWERPC] Removed dead code related to PCI on ppc32Kumar Gala
There are no in kernel users of any off these functions and some of them were not even EXPORT_SYMBOL: - pci_bus_io_base() - pci_bus_io_base_phys() - pci_bus_mem_base_phys() - pci_resource_to_bus() - phys_to_bus() - pci_phys_to_bus() - pci_bus_to_phys() - pci_init_resource() - resource_fixup() Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2007-05-02[POWERPC] Remove duplicate export of __div64_32.Scott Wood
Change 3927f2e8f9afa3424bb51ca81f7abac01ffd0005 moved lib/lib64.c from lib-y to obj-y, preventing the export in ppc_ksyms.c from overriding the one in lib, and thus causing a duplicate-export warning. Signed-off-by: Scott Wood <scottwood@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-04-30Merge branch 'linux-2.6' into for-2.6.22Paul Mackerras
2007-04-26[STRING]: Move strcasecmp/strncasecmp to lib/string.cDavid S. Miller
We have several platforms using local copies of identical code. Signed-off-by: David S. Miller <davem@davemloft.net>
2007-04-13[POWERPC] Remove unused inclusion of linux/ide.hOlaf Hering
Remove unneeded inclusion of linux/ide.h It does not compile with CONFIG_BLOCK=n. Remove asm/ide.h from ksyms file, it gets included earlier via linux/ide.h. Compile tested with all defconfig files. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2007-02-07[POWERPC] Compile fixes for arch/powerpc dcr codeDavid Gibson
The new dcr code does not currently compile when configured for native DCR access on ARCH=powerpc. This patch fixes the problems. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-12-10[POWERPC] Only export __mtdcr/__mfdcr if CONFIG_PPC_DCR is setKumar Gala
On 85xx we don't build in dcr support because the core doesn't implement the instructions. This caused problems when building an 85xx kernel. Additionally made it so we only build __mtdcr/__mfdcr if we are CONFIG_PPC_DCR_NATIVE. The 85xx build issue wasPointed out by Dai Haruki. Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-10-16[POWERPC] Lazy interrupt disabling for 64-bit machinesPaul Mackerras
This implements a lazy strategy for disabling interrupts. This means that local_irq_disable() et al. just clear the 'interrupts are enabled' flag in the paca. If an interrupt comes along, the interrupt entry code notices that interrupts are supposed to be disabled, and clears the EE bit in SRR1, clears the 'interrupts are hard-enabled' flag in the paca, and returns. This means that interrupts only actually get disabled in the processor when an interrupt comes along. When interrupts are enabled by local_irq_enable() et al., the code sets the interrupts-enabled flag in the paca, and then checks whether interrupts got hard-disabled. If so, it also sets the EE bit in the MSR to hard-enable the interrupts. This has the potential to improve performance, and also makes it easier to make a kernel that can boot on iSeries and on other 64-bit machines, since this lazy-disable strategy is very similar to the soft-disable strategy that iSeries already uses. This version renames paca->proc_enabled to paca->soft_enabled, and changes a couple of soft-disables in the kexec code to hard-disables, which should fix the crash that Michael Ellerman saw. This doesn't yet use a reserved CR field for the soft_enabled and hard_enabled flags. This applies on top of Stephen Rothwell's patches to make it possible to build a combined iSeries/other kernel. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-20[POWERPC] convert string i/o operations to CStephen Rothwell
This produces essentially the same code and will make the iSeries i/o consolidation easier. The count parameter is changed to long since that will produce the same (better) code on 32 and 64 bit builds. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-20[POWERPC] clean up ide io accessorsStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-20[POWERPC] remove unused asm routinesStephen Rothwell
_insw, _outsw, _insl amd _outsl are all unused, so remove them. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-13[POWERPC] Export copy_4K_page()David Howells
Export copy_4K_page() for use by modules via copy_page() (such as CacheFiles). Signed-Off-By: David Howells <dhowells@redhat.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-08-08[POWERPC] Remove flush_dcache_all exportMatt Porter
Removes the flush_dcache_all export for non coherent platforms. We removed the last in-kernel user of this years ago in arch/ppc so it no longer serves a purpose. Plus, it breaks the build at the moment. Signed-off-by: Matt Porter <mporter@embeddedalley.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-07-10[PATCH] tty: Remove include of screen_info.h from tty.hJon Smirl
screen_info.h doesn't have anything to do with the tty layer and shouldn't be included by tty.h. This patches removes the include and modifies all users to directly include screen_info.h. struct screen_info is mainly used to communicate with the console drivers in drivers/video/console. Note that this patch touches every arch and I have no way of testing it. If there is a mistake the worst thing that will happen is a compile error. [akpm@osdl.org: fix arm build] [akpm@osdl.org: fix alpha build] Signed-off-by: Jon Smirl <jonsmir@gmail.com> Signed-off-by: Antonino Daplas <adaplas@pol.net> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30Remove obsolete #include <linux/config.h>Jörn Engel
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-04-02powerpc/ppc: export strncasecmpKumar Gala
We have a strncasecmp so we might as well export it Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-03-17Merge ../linux-2.6Paul Mackerras
2006-03-16[PATCH] powerpc: remove duplicate EXPORT_SYMBOLSOlaf Hering
remove warnings when building a 64bit kernel. smp_call_function triggers also with 32bit kernel. WARNING: vmlinux: duplicate symbol 'smp_call_function' previous definition was in vmlinux arch/powerpc/kernel/ppc_ksyms.c:164:EXPORT_SYMBOL(smp_call_function); arch/powerpc/kernel/smp.c:300:EXPORT_SYMBOL(smp_call_function); WARNING: vmlinux: duplicate symbol 'ioremap' previous definition was in vmlinux arch/powerpc/kernel/ppc_ksyms.c:113:EXPORT_SYMBOL(ioremap); arch/powerpc/mm/pgtable_64.c:321:EXPORT_SYMBOL(ioremap); WARNING: vmlinux: duplicate symbol '__ioremap' previous definition was in vmlinux arch/powerpc/kernel/ppc_ksyms.c:117:EXPORT_SYMBOL(__ioremap); arch/powerpc/mm/pgtable_64.c:322:EXPORT_SYMBOL(__ioremap); WARNING: vmlinux: duplicate symbol 'iounmap' previous definition was in vmlinux arch/powerpc/kernel/ppc_ksyms.c:118:EXPORT_SYMBOL(iounmap); arch/powerpc/mm/pgtable_64.c:323:EXPORT_SYMBOL(iounmap); Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-24Merge ../powerpc-mergePaul Mackerras
2006-02-20[PATCH] powerpc: remove duplicate exportsOlaf Hering
A few symbols are exported twice, remove them from ppc_ksyms.c Remove users of sys_ctrler in arch/ppc/ WARNING: vmlinux: duplicate symbol '__delay' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol '__up' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol '__down' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol '__down_interruptible' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'sys_ctrler' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'strncat' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'strncmp' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'strchr' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'strrchr' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'strnlen' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'strpbrk' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'memscan' previous definition was in vmlinux WARNING: vmlinux: duplicate symbol 'strstr' previous definition was in vmlinux Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-02-07[PATCH] powerpc: cleanup pmac_newworld variable usageOlaf Hering
remove extern declarations of pmac_newworld move pmac_newworld to bss if there is any "interrupt-controller" device, then it is newworld. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-14[PATCH] powerpc: Add MPC834x SYS board to arch/powerpcKumar Gala
Add the first MPC83xx board that uses a flat device tree to arch/powerpc. Signed-off-by: Kumar Gala <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-10[PATCH] powerpc: Some ppc compile fixes...David Woodhouse
This gets most of the Fedora rawhide RPM building again, as long as I disable CHRP. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-01-09[PATCH] PPC_PREP: remove unneeded exportsAdrian Bunk
This patch removes the EXPORT_SYMBOL'ed but completely unused variable ucSystemType and removes the unneeded EXPORT_SYMBOL(_prep_type). Signed-off-by: Adrian Bunk <bunk@stusta.de> Acked-by: Tom Rini <trini@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-29powerpc: Export __flush_icache_range for 32-bitPaul Mackerras
Both 32-bit and 64-bit use the same inline flush_icache_range definition now, so both need to export __flush_icache_range, not just 64-bit. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-19powerpc: Merge pci.hPaul Mackerras
This involves some minor changes: a few unused functions that the ppc32 pci.c provides are no longer declared here or exported; pcibios_assign_all_busses now just refers to the pci_assign_all_buses variable on both 32-bit and 64-bit; pcibios_scan_all_fns is now just 0 instead of a function that always returns 0 on 64-bit. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-15[PATCH] Add missing EXPORT_SYMBOLS() for __ide_mm_* functions on powerpcBen Collins
These exported symbols are in arch/ppc/ but missing from arch/powerpc/ for ppc32 builds. Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Paul Mackerras <paulus@samba.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-10[PATCH] powerpc: merge code values for identifying platformsPaul Mackerras
This patch merges platform codes. systemcfg->platform is no longer used, systemcfg use in general is deprecated as much as possible (and renamed _systemcfg before it gets completely moved elsewhere in a future patch), _machine is now used on ppc64 along as ppc32. Platform codes aren't gone yet but we are getting a step closer. A bunch of asm code in head[_64].S is also turned into C code. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-10[PATCH] powerpc: Merge signal.hDavid Gibson
Having already merged the ppc and ppc64 versions of signal.c, this patch finishes the job by merging signal.h. The two versions were almost identical already. Notable changes: - We use BITS_PER_LONG to correctly size sigset_t - Remove some uneeded #includes and struct forward declarations. This does mean adding an include to signal_32.c which relied on the indirect inclusion of sigcontext.h - As the ppc64 version, the merged signal.h has prototypes for do_signal() and do_signal32(). Thus remove extra prototypes from ppc_ksyms.c which had them directly. Built and booted on POWER5 LPAR (ARCH=ppc64 and ARCH=powerpc). Built for 32-bit powermac (ARCH=ppc and ARCH=powerpc) and Walnut (ARCH=ppc). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01[PATCH] powerpc: Merge bitops.hDavid Gibson
Here's a revised version. This re-introduces the set_bits() function from ppc64, which I removed because I thought it was unused (it exists on no other arch). In fact it is used in the powermac interrupt code (but not on pSeries). - We use LARXL/STCXL macros to generate the right (32 or 64 bit) instructions, similar to LDL/STL from ppc_asm.h, used in fpu.S - ppc32 previously used a full "sync" barrier at the end of test_and_*_bit(), whereas ppc64 used an "isync". The merged version uses "isync", since I believe that's sufficient. - The ppc64 versions of then minix_*() bitmap functions have changed semantics. Previously on ppc64, these functions were big-endian (that is bit 0 was the LSB in the first 64-bit, big-endian word). On ppc32 (and x86, for that matter, they were little-endian. As far as I can tell, the big-endian usage was simply wrong - I guess no-one ever tried to use minixfs on ppc64. - On ppc32 find_next_bit() and find_next_zero_bit() are no longer inline (they were already out-of-line on ppc64). - For ppc64, sched_find_first_bit() has moved from mmu_context.h to the merged bitops. What it was doing in mmu_context.h in the first place, I have no idea. - The fls() function is now implemented using the cntlzw instruction on ppc64, instead of generic_fls(), as it already was on ppc32. - For ARCH=ppc, this patch requires adding arch/powerpc/lib to the arch/ppc/Makefile. This in turn requires some changes to arch/powerpc/lib/Makefile which didn't correctly handle ARCH=ppc. Built and running on G5. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>