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2006-11-13[PATCH] ppc: Fix io.h for config with CONFIG_PCI not setSylvain Munaut4-34/+1
When CONFIG_PCI option is not set, the variables pci_dram_offset, isa_io_base and isa_mem_base are not defined. Currently, the test is handled in each platform header. This patch moves the test in io.h once and for all. Signed-off-by: Sylvain Munaut <tnt@246tNt.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-11[PATCH] Consolidate check_signatureMatthew Wilcox1-16/+0
There's nothing arch-specific about check_signature(), so move it to <linux/io.h>. Use a cross between the Alpha and i386 implementations as the generic one. Signed-off-by: Matthew Wilcox <willy@parisc-linux.org> Acked-by: Alan Cox <alan@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-10-10[POWERPC] ARCH=ppc pt_regs fixesAl Viro4-6/+5
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07[POWERPC] PReP fixup after irq changesOlaf Hering2-4/+4
Compile fixes for PReP in ARCH=ppc. Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-07[POWERPC] Fix up after irq changesOlaf Hering1-1/+1
Remove struct pt_regs * from all handlers. Also remove the regs argument from get_irq() functions. Compile tested with arch/powerpc/config/* and arch/ppc/configs/prep_defconfig Signed-off-by: Olaf Hering <olaf@aepfle.de> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-06[PPC] Fix some irq breakage with ARCH=ppcPaul Mackerras1-3/+3
Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-03fix file specification in commentsUwe Zeisberger3-3/+3
Many files include the filename at the beginning, serveral used a wrong one. Signed-off-by: Uwe Zeisberger <Uwe_Zeisberger@digi.com> Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-10-03Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds3-1/+102
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (29 commits) [POWERPC] Fix rheap alignment problem [POWERPC] Use check_legacy_ioport() for ISAPnP [POWERPC] Avoid NULL pointer in gpio1_interrupt [POWERPC] Enable generic rtc hook for the MPC8349 mITX [POWERPC] Add powerpc get/set_rtc_time interface to new generic rtc class [POWERPC] Create a "wrapper" script and use it in arch/powerpc/boot [POWERPC] fix spin lock nesting in hvc_iseries [POWERPC] EEH failure to mark pci slot as frozen. [POWERPC] update powerpc defconfig files after libata kconfig breakage [POWERPC] enable sysrq in pmac32_defconfig [POWERPC] UPIO_TSI cleanup [POWERPC] rewrite mkprep and mkbugboot in sane C [POWERPC] maple/pci iomem annotations [POWERPC] powerpc oprofile __user annotations [POWERPC] cell spufs iomem annotations [POWERPC] NULL noise removal: spufs [POWERPC] ppc math-emu needs -fno-builtin-fabs for math.c and fabs.c [POWERPC] update mpc8349_itx_defconfig and remove some debug settings [POWERPC] Always call cede in pseries dedicated idle loop [POWERPC] Fix loop logic in irq_alloc_virt() ...
2006-10-02[POWERPC] Fix rheap alignment problemLi Yang1-0/+4
Honor alignment parameter in the rheap allocator. This is needed by qe_lib. Remove compile warning. Signed-off-by: Pantelis Antoniou <pantelis@embeddedalley.com> Signed-off-by: Li Yang <leoli@freescale.com> Acked-by: Kumar Galak <galak@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-10-01[PATCH] Directed yield: cpu_relax variants for spinlocks and rw-locksMartin Schwidefsky1-0/+4
On systems running with virtual cpus there is optimization potential in regard to spinlocks and rw-locks. If the virtual cpu that has taken a lock is known to a cpu that wants to acquire the same lock it is beneficial to yield the timeslice of the virtual cpu in favour of the cpu that has the lock (directed yield). With CONFIG_PREEMPT="n" this can be implemented by the architecture without common code changes. Powerpc already does this. With CONFIG_PREEMPT="y" the lock loops are coded with _raw_spin_trylock, _raw_read_trylock and _raw_write_trylock in kernel/spinlock.c. If the lock could not be taken cpu_relax is called. A directed yield is not possible because cpu_relax doesn't know anything about the lock. To be able to yield the lock in favour of the current lock holder variants of cpu_relax for spinlocks and rw-locks are needed. The new _raw_spin_relax, _raw_read_relax and _raw_write_relax primitives differ from cpu_relax insofar that they have an argument: a pointer to the lock structure. Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Paul Mackerras <paulus@samba.org> Cc: Haavard Skinnemoen <hskinnemoen@atmel.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-28Merge branch 'upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/vitb/linux-2.6-PQPaul Mackerras2-1/+98
2006-09-26[PATCH] Standardize pxx_page macrosDave McCracken1-4/+4
One of the changes necessary for shared page tables is to standardize the pxx_page macros. pte_page and pmd_page have always returned the struct page associated with their entry, while pte_page_kernel and pmd_page_kernel have returned the kernel virtual address. pud_page and pgd_page, on the other hand, return the kernel virtual address. Shared page tables needs pud_page and pgd_page to return the actual page structures. There are very few actual users of these functions, so it is simple to standardize their usage. Since this is basic cleanup, I am submitting these changes as a standalone patch. Per Hugh Dickins' comments about it, I am also changing the pxx_page_kernel macros to pxx_page_vaddr to clarify their meaning. Signed-off-by: Dave McCracken <dmccr@us.ibm.com> Cc: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-23[PATCH] #elif that should've been #elif definedAl Viro1-1/+1
#elif CONFIG_44x in ibm4xx.h should've been #elif defined(CONFIG_44x) Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-09-21POWERPC: overhaul with cpm2_map mechanismVitaly Bordug1-0/+53
Incorporating the new way of cpm2 immr access, introduced in the previous patch, into CPM2 peripheral devices (fs_enet and cpm_uart). Both ppc and powerpc approved working( real actions taken in powerpc only, ppc just has a wrapper to keep init stuff consistent). Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21POWERPC: Get rid of remapping the whole immrVitaly Bordug2-0/+8
The stuff below cleans up the code attempting to remap the whole cpm2_immr early, as well as places happily assuming that fact. This is more like the 2.4 legacy stuff, and is at least confusing and unclear now. To keep the world comfortable, a new mechanism is introduced: before accessing specific immr register/register set, one needs to map it, using cpm2_map(<reg>), for instance, access to CPM command register will look like volatile cpm_cpm2_t *cp = cpm2_map(im_cpm); keeping the code clear, yet without "already defined somewhere" cpm2_immr. So far, unmapping code is not implemented, but it's not a big deal to add it, if the whole idea makes sense. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21POWERPC: Move generic cpm2 stuff to powerpcVitaly Bordug1-1/+5
This moves the cpm2 common code and PIC stuff to the powerpc. Most of the files were just copied from ppc/, with minor tuning to make it compile, and, subsequently, work. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21cpm_uart: make it possible to utilize from powerpcVitaly Bordug1-0/+32
Driver core has been updated to make use of the new powerpc OF-inspired platform devices, yet keeping compatibility to the vast board list from ppc. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com>
2006-09-21[POWERPC] 40x: Fix debug status register definesJosh Boyer1-8/+8
This fixes some debug register defines on PPC 40x that were incorrect. Signed-off-by: Josh Boyer <jdub@us.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-09-20[POWERPC] convert string i/o operations to CStephen Rothwell1-6/+6
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] remove unused asm routinesStephen Rothwell1-4/+0
_insw, _outsw, _insl amd _outsl are all unused, so remove them. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-20[POWERPC] remove unused io accessorsStephen Rothwell2-14/+0
The io accessors insw_ns, outsw_ns, insl_ns and outsl_ns are unused (except for one unnecessary use in drivers/net/3c509.c that is addressed in a previous patch) and are only defined in powerpc/ppc, so remove them. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2006-09-13[POWERPC] Fix MMIO ops to provide expected barrier behaviourPaul Mackerras1-9/+11
This changes the writeX family of functions to have a sync instruction before the MMIO store rather than after, because the generally expected behaviour is that the device receiving the MMIO store can be guaranteed to see the effects of any preceding writes to normal memory. To preserve ordering between writeX and readX, and to preserve ordering between preceding stores and the readX, the readX family of functions have had an sync added before the load. Although writeX followed by spin_unlock is not officially guaranteed to keep the writeX inside the spin-locked region unless an mmiowb() is used, there are currently drivers that depend on the previous behaviour on powerpc, which was that the mmiowb wasn't actually required. Therefore we have a per-cpu flag that is set by writeX, cleared by __raw_spin_lock and mmiowb, and tested by __raw_spin_unlock. If it is set, __raw_spin_unlock does a sync and clears it. This changes both 32-bit and 64-bit readX/writeX. 32-bit already has a sync in __raw_spin_unlock (since lwsync doesn't exist on 32-bit), and thus doesn't need the per-cpu flag. Tested on G5 (PPC970) and POWER5. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-08-19[PATCH] ppc32: board-specific part of fs_enet updateVitaly Bordug3-0/+97
This contains board-specific portion to respect driver changes (for 8272ads , 885ads and 866ads). Altered platform_data structures as well as initial setup routines relevant to fs_enet. Changes to the mpc8560ads ppc/ code are also introduced, but mainly as reference, since the entire board support is going to appear in arch/powerpc. Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Jeff Garzik <jeff@garzik.org>
2006-07-14[PATCH] remove set_wmb - arch removalSteven Rostedt1-1/+0
set_wmb should not be used in the kernel because it just confuses the code more and has no benefit. Since it is not currently used in the kernel this patch removes it so that new code does not include it. All archs define set_wmb(var, value) to do { var = value; wmb(); } while(0) except ia64 and sparc which use a mb() instead. But this is still moot since it is not used anyway. Hasn't been tested on any archs but x86 and x86_64 (and only compiled tested) Signed-off-by: Steven Rostedt <rostedt@goodmis.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-07-02[PATCH] irq-flags: PPC: Use the new IRQF_ constantsThomas Gleixner1-4/+4
Use the new IRQF_ constants and remove the SA_INTERRUPT define Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Ingo Molnar <mingo@elte.hu> Cc: "David S. Miller" <davem@davemloft.net> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-30typo fixes: mecanism -> mechanismAdrian Bunk1-1/+1
Signed-off-by: Adrian Bunk <bunk@stusta.de>
2006-06-29Merge git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6Linus Torvalds1-1/+0
* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/devfs-2.6: (22 commits) [PATCH] devfs: Remove it from the feature_removal.txt file [PATCH] devfs: Last little devfs cleanups throughout the kernel tree. [PATCH] devfs: Rename TTY_DRIVER_NO_DEVFS to TTY_DRIVER_DYNAMIC_DEV [PATCH] devfs: Remove the tty_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the line_driver devfs_name field as it's no longer needed [PATCH] devfs: Remove the videodevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the gendisk devfs_name field as it's no longer needed [PATCH] devfs: Remove the miscdevice devfs_name field as it's no longer needed [PATCH] devfs: Remove the devfs_fs_kernel.h file from the tree [PATCH] devfs: Remove devfs_remove() function from the kernel tree [PATCH] devfs: Remove devfs_mk_cdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_bdev() function from the kernel tree [PATCH] devfs: Remove devfs_mk_symlink() function from the kernel tree [PATCH] devfs: Remove devfs_mk_dir() function from the kernel tree [PATCH] devfs: Remove devfs_*_tape() functions from the kernel tree [PATCH] devfs: Remove devfs support from the sound subsystem [PATCH] devfs: Remove devfs support from the ide subsystem. [PATCH] devfs: Remove devfs support from the serial subsystem [PATCH] devfs: Remove devfs from the init code [PATCH] devfs: Remove devfs from the partition code ...
2006-06-27[PATCH] 64bit resource: change pci core and arch code to use resource_size_tGreg Kroah-Hartman1-1/+1
Based on a patch series originally from Vivek Goyal <vgoyal@in.ibm.com> Cc: Vivek Goyal <vgoyal@in.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-26[PATCH] devfs: Remove the devfs_fs_kernel.h file from the treeGreg Kroah-Hartman1-1/+0
Also fixes up all files that #include it. Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2006-06-25[PATCH] random: remove SA_SAMPLE_RANDOM from floppy driverMatt Mackall1-4/+2
The floppy driver is already calling add_disk_randomness as it should, so this was redundant. Signed-off-by: Matt Mackall <mpm@selenic.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2006-06-22Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpcLinus Torvalds4-31/+24
* git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc: (139 commits) [POWERPC] re-enable OProfile for iSeries, using timer interrupt [POWERPC] support ibm,extended-*-frequency properties [POWERPC] Extra sanity check in EEH code [POWERPC] Dont look for class-code in pci children [POWERPC] Fix mdelay badness on shared processor partitions [POWERPC] disable floating point exceptions for init [POWERPC] Unify ppc syscall tables [POWERPC] mpic: add support for serial mode interrupts [POWERPC] pseries: Print PCI slot location code on failure [POWERPC] spufs: one more fix for 64k pages [POWERPC] spufs: fail spu_create with invalid flags [POWERPC] spufs: clear class2 interrupt status before wakeup [POWERPC] spufs: fix Makefile for "make clean" [POWERPC] spufs: remove stop_code from struct spu [POWERPC] spufs: fix spu irq affinity setting [POWERPC] spufs: further abstract priv1 register access [POWERPC] spufs: split the Cell BE support into generic and platform dependant parts [POWERPC] spufs: dont try to access SPE channel 1 count [POWERPC] spufs: use kzalloc in create_spu [POWERPC] spufs: fix initial state of wbox file ... Manually resolved conflicts in: drivers/net/phy/Makefile include/asm-powerpc/spu.h
2006-06-15[POWERPC] Remove stale 64bit on 32bit kernel codeAnton Blanchard1-17/+0
Remove some stale POWER3/POWER4/970 on 32bit kernel support. Signed-off-by: Anton Blanchard <anton@samba.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-06-11powerpc: add context.vdso_base for 32-bit tooPaul Mackerras3-14/+21
This adds a vdso_base element to the mm_context_t for 32-bit compiles (both for ARCH=powerpc and ARCH=ppc). This fixes the compile errors that have been reported in arch/powerpc/kernel/signal_32.c. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-24Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6David Woodhouse1-0/+1
Conflicts: include/asm-powerpc/unistd.h include/asm-sparc/unistd.h include/asm-sparc64/unistd.h Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-19Merge ../linux-2.6Paul Mackerras1-0/+1
2006-05-09powerpc/32: Define an is_kernel_addr() to fix ARCH=ppc compilationPaul Mackerras1-0/+1
My commit 6bfd93c32a5065d0e858780b3beb0b667081601c broke the ARCH=ppc compilation by using the is_kernel_addr() macro in asm/uaccess.h. This fixes it by defining a suitable is_kernel_addr() for ARCH=ppc. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-05-06Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6David Woodhouse2-1/+2
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-05-05Merge ../linux-2.6Paul Mackerras2-1/+2
2006-05-03[PATCH] ppc32 CPM_UART: Fixed break send on SCCVitaly Bordug2-1/+2
SCC uart sends a break sequence each time it is stopped with the CPM_CR_STOP_TX command. That means that each time an application closes the serial device, a break is transmitted. To fix this, graceful tx stop is issued for SCC. Signed-off-by: David Jander <david.jander@protonic.nl> Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-30Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6David Woodhouse2-0/+3
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-29Merge branch 'merge'Paul Mackerras2-0/+3
2006-04-28[PATCH] ppc32: odd fixes and improvements in ppc_sysVitaly Bordug1-0/+2
This consists of offsets fix in ..._devices.c, and update of ppc_sys_fixup_mem_resource() function to prevent subsequent fixups Signed-off-by: Vitaly Bordug <vbordug@ru.mvista.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-28[PATCH] ppc32: add 440GX erratum 440_43 workaroundEugene Surovegin1-0/+1
This patch adds workaround for PPC 440GX erratum 440_43. According to this erratum spurious MachineChecks (caused by L1 cache parity) can happen during DataTLB miss processing. We disable L1 cache parity checking for 440GX rev.C and rev.F Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-04-26Don't include linux/config.h from anywhere else in include/David Woodhouse26-27/+0
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
2006-04-04Add 85xx CDS to arch/powerpcAndy Fleming1-0/+3
This patch adds support for 85xx CDS support to arch/powerpc Signed-off-by: Andy Fleming <afleming@freescale.com> Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
2006-03-29[PATCH] lock PTE before updating it in 440/BookE page fault handlerEugene Surovegin1-1/+2
Fix 44x and BookE page fault handler to correctly lock PTE before trying to pte_update() it, otherwise this PTE might be swapped out after pte_present() check but before pte_uptdate() call, resulting in corrupted PTE. This can happen with enabled preemption and low memory condition. Signed-off-by: Eugene Surovegin <ebs@ebshome.net> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-29Merge ../linux-2.6Paul Mackerras1-2/+2
2006-03-28[PATCH] powerpc: Kill _machine and hard-coded platform numbersBenjamin Herrenschmidt1-0/+12
This removes statically assigned platform numbers and reworks the powerpc platform probe code to use a better mechanism. With this, board support files can simply declare a new machine type with a macro, and implement a probe() function that uses the flattened device-tree to detect if they apply for a given machine. We now have a machine_is() macro that replaces the comparisons of _machine with the various PLATFORM_* constants. This commit also changes various drivers to use the new macro instead of looking at _machine. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-28ppc: Remove CHRP, POWER3 and POWER4 support from arch/ppcPaul Mackerras3-157/+9
32-bit CHRP machines are now supported only in arch/powerpc, as are all 64-bit PowerPC processors. This means that we don't use Open Firmware on any platform in arch/ppc any more. This makes PReP support a single-platform option like every other platform support option in arch/ppc now, thus CONFIG_PPC_MULTIPLATFORM is gone from arch/ppc. CONFIG_PPC_PREP is the option that selects PReP support and is generally what has replaced CONFIG_PPC_MULTIPLATFORM within arch/ppc. _machine is all but dead now, being #defined to 0. Updated Makefiles, comments and Kconfig options generally to reflect these changes. Signed-off-by: Paul Mackerras <paulus@samba.org>
2006-03-27[PATCH] unify pfn_to_page: ppc pfn_to_pageKAMEZAWA Hiroyuki1-2/+2
PPC can use generic funcs. Signed-off-by: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com> Cc: Paul Mackerras <paulus@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
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