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2005-11-02[PATCH] powerpc: Move dart.hDavid Gibson
asm-ppc64/dart.h is included in exactly one place - arch/powerpc/sysdev/u3_iommu.c. This patch, therefore, moves it into arch/powerpc/sysdev. While we're at it, update the #ifndef/#define protecting the include, and the filename in the comments of u3_iommu.c. Built and booted on pSeries and G5, built for ppc32 powermac. Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-02[PATCH] powerpc: Merge (move) numnodes.h and sparsemem.hDavid Gibson
The ppc64 versions of numnodes.h and sparsemem.h can be safely moved to asm-powerpc with no changes apart from changing the #define to the standard _ASM_POWERPC_ form. There are no ppc32 versions of these files, because they only have any effect if CONFIG_SPARSEMEM is enabled, which it never can be on ppc32. Built and booted on pSeries (POWER5), built for 32-bit powermac. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-02[PATCH] powerpc: Merge futex.hDavid Gibson
This patch merges the ppc32 and ppc64 versions of futex.h, essentially by taking the ppc64 version as the powerpc version. The old ppc32 version did not implement the futex_atomic_op_inuser() callback (it always returned -ENOSYS), so FUTEX_WAKE_OP would not work on ppc32. In fact the ppc64 version of this function is almost suitable for ppc32 as well - the only change needed is to extend ppc_asm.h with a macro expanding to to the right pseudo-op to store a pointer (either ".long" or ".llong"). Built and booted on pSeries. Built for 32-bit powermac. 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>
2005-11-01[PATCH] powerpc: Merge ipcbuf.hDavid Gibson
This patch merges ppc32 and ppc64 versions of ipcbuf.h. The merge is essentially trivial, since the structure defined in each version was already identical. Only wrinkle is that the merged version now includes linux/types.h in order to get the fixed width integer types. In fact, the old versions probably should have been including that anyway, since the file uses various __kernel_*_t types. Built and booted on G5, built for 32-bit pmac, but not booted, since the merge tree currently doesn't boot there. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01[PATCH] powerpc: create a new arch/powerpc/platforms/cell/smp.cArnd Bergmann
During the conversion to the merge tree, the Cell specific SMP initialization was removed from the pSeries code. This creates a new Cell specific SMP implementation file. Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01[PATCH] powerpc: Rename BPA to CellArnd Bergmann
The official name for BPA is now CBEA (Cell Broadband Engine Architecture). This patch renames all occurences of the term BPA to 'Cell' for easier recognition. Signed-off-by: Arnd Bergmann <arndb@de.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-01powerpc: merge uaccess.hStephen Rothwell
There is still a bug to be fixed and more merging to be done. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-31Merge ../linux-2.6 by handPaul Mackerras
2005-10-31powerpc: Fix bug arising from having multiple memory_limit variablesPaul Mackerras
We had a static memory_limit in prom.c, and then another one defined in setup_64.c and used in numa.c, which resulted in the kernel crashing when mem=xxx was given on the command line. This puts the declaration in system.h and the definition in mem.c. This also moves the definition of tce_alloc_start/end out of setup_64.c. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-30[PATCH] semaphore: Remove __MUTEX_INITIALIZER()Arthur Othieno
__MUTEX_INITIALIZER() has no users, and equates to the more commonly used DECLARE_MUTEX(), thus making it pretty much redundant. Remove it for good. Signed-off-by: Arthur Othieno <a.othieno@bluewin.ch> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-30[PATCH] unify sys_ptrace prototypeChristoph Hellwig
Make sure we always return, as all syscalls should. Also move the common prototype to <linux/syscalls.h> Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Miklos Szeredi <miklos@szeredi.hu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-29[PATCH] memory hotplug prep: kill local_mapnrDave Hansen
The following series implements memory hot-add for ppc64 and i386. There are x86_64 and ia64 implementations that will be submitted shortly as well, through the normal maintainers. This patch: local_mapnr is unused, except for in an alpha header. Keep the alpha one, kill the rest. Signed-off-by: Dave Hansen <haveblue@us.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-29[PATCH] mm: page fault handlers tidyupHugh Dickins
Impose a little more consistency on the page fault handlers do_wp_page, do_swap_page, do_anonymous_page, do_no_page, do_file_page: why not pass their arguments in the same order, called the same names? break_cow is all very well, but what it did was inlined elsewhere: easier to compare if it's brought back into do_wp_page. do_file_page's fallback to do_no_page dates from a time when we were testing pte_file by using it wherever possible: currently it's peculiar to nonlinear vmas, so just check that. BUG_ON if not? Better not, it's probably page table corruption, so just show the pte: hmm, there's a pte_ERROR macro, let's use that for do_wp_page's invalid pfn too. Hah! Someone in the ppc64 world noticed pte_ERROR was unused so removed it: restored (and say "pud" not "pmd" in its pud_ERROR). Signed-off-by: Hugh Dickins <hugh@veritas.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-29[PATCH] add sem_is_read/write_locked()Rik Van Riel
Add sem_is_read/write_locked functions to the read/write semaphores, along the same lines of the *_is_locked spinlock functions. The swap token tuning patch uses sem_is_read_locked; sem_is_write_locked is added for completeness. Signed-off-by: Rik van Riel <riel@redhat.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-10-29[PATCH] ppc: make phys_mem_access_prot() work with pfns instead of addressesRoland Dreier
Change the phys_mem_access_prot() function to take a pfn instead of an address. This allows mmap64() to work on /dev/mem for addresses above 4G on 32-bit architectures. We start with a pfn in mmap_mem(), so there's no need to convert to an address; in fact, it's actively bad, since the conversion can overflow when the address is above 4G. Similarly fix the ppc32 page_is_ram() function to avoid a conversion to an address by directly comparing to max_pfn. Working with max_pfn instead of high_memory fixes page_is_ram() to give the right answer for highmem pages. Signed-off-by: Roland Dreier <rolandd@cisco.com> Cc: Anton Blanchard <anton@samba.org> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-28powerpc: Make single-stepping emulation (mostly) usable on 32-bitPaul Mackerras
The sc instruction emulation can't be done the same way on 32-bit as 64-bit yet, but this should work OK. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-28[PATCH] powerpc: Move xics.[ch] into platforms/pseriesDavid Gibson
This patch moves the XICS interrupt controller code into the platforms/pseries directory, since it only appears on pSeries machines. If it ever appears on some other machine we can move it to sysdev, although xics.c itself will need a bunch of changes in that case to remove pSeries specific assumptions. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-28[PATCH] powerpc: Remove dregs of bootinfo.hDavid Gibson
Since I sent the patch to purge bootinfo.h from ARCH=powerpc and ARCH=ppc64, setup-common.c has come into existence, and another #include of bootinfo.h slipped in. This patch removes it. It also removes include/asm-ppc64/bootinfo.h, which somehow survived the previous patch which was supposed to remove it. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27[PATCH] powerpc: Merge parport.hDavid Gibson
Save for the header #define, ppc32 and ppc64 versions of parport.h are identical. This patch merges them. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27[PATCH] powerpc: Fix handling of fpscr on 64-bitDavid Gibson
The recent merge of fpu.S broken the handling of fpscr for ARCH=powerpc and CONFIG_PPC64=y. FP registers could be corrupted, leading to strange random application crashes. The confusion arises, because the thread_struct has (and requires) a 64-bit area to save the fpscr, because we use load/store double instructions to get it in to/out of the FPU. However, only the low 32-bits are actually used, so we want to treat it as a 32-bit quantity when manipulating its bits to avoid extra load/stores on 32-bit. This patch replaces the current definition with a structure of two 32-bit quantities (pad and val), to clarify things as much as is possible. The 'val' field is used when manipulating bits, the structure itself is used when obtaining the address for loading/unloading the value from the FPU. While we're at it, consolidate the 4 (!) almost identical versions of cvt_fd() and cvt_df() (arch/ppc/kernel/misc.S, arch/ppc64/kernel/misc.S, arch/powerpc/kernel/misc_32.S, arch/powerpc/kernel/misc_64.S) into a single version in fpu.S. The new version takes a pointer to thread_struct and applies the correct offset itself, rather than a pointer to the fpscr field itself, again to avoid confusion as to which is the correct field to use. Finally, this patch makes ARCH=ppc64 also use the consolidated fpu.S code, which it previously did not. Built for G5 (ARCH=ppc64 and ARCH=powerpc), 32-bit powermac (ARCH=ppc and ARCH=powerpc) and Walnut (ARCH=ppc, CONFIG_MATH_EMULATION=y). Booted on G5 (ARCH=powerpc) and things which previously fell over no longer do. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27[PATCH] powerpc: merge scatterlist.hStephen Rothwell
This depends on the 64bit dma_addr_t patch. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-27[PATCH] ppc64: make dma_addr_t 64 bitsStephen Rothwell
There has been a need expressed for dma_addr_t to be 64 bits on PPC64. This patch does that. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26[PATCH] powerpc: Move firmware.h into include/asm-powerpcMichael Ellerman
Move firmware.h into include/asm-powerpc. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-26[PATCH] powerpc: merge include/asm-ppc*/checksum.h into ↵Kumar Gala
include/asm-powerpc/checksum.h Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-24powerpc: Move include/asm-ppc64/vio.h to include/asm-powerpc/vio.hStephen Rothwell
Move include/asm-ppc64/vio.h to include/asm-powerpc/vio.h, that's it. Signed-off-by: Michael Ellerman <michael@ellerman.id.au> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-22powerpc: Merge in 64-bit powermac support.Paul Mackerras
This brings in a lot of changes from arch/ppc64/kernel/pmac_*.c to arch/powerpc/platforms/powermac/*.c and makes various minor tweaks elsewhere. On the powermac we now initialize ppc_md by copying the whole pmac_md structure into it, which required some changes in the ordering of initializations of individual fields of it. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-22ppc64: Rearrange btext initialization for consistency with ppc32Paul Mackerras
Moved init_boot_display from arch/ppc64/kernel/pmac_setup.c to arch/ppc64/kernel/btext.c and declared it in asm-ppc64/btext.h. Call it from init_early rather than pmac_init_early. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-22ppc64: Add a `primary' argument to pci_process_bridge_OF_rangesPaul Mackerras
... for consistency with ppc32 and to make the powermac merge easier. Also make it use just a single resource in the host bridge for multiple consecutive elements of the ranges property. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-21[PATCH] powerpc: Merge thread_info.hDavid Gibson
Merge ppc32 and ppc64 versions of thread_info.h. They were pretty similar already, the chief changes are: - Instead of inline asm to implement current_thread_info(), which needs to be different for ppc32 and ppc64, we use C with an asm("r1") register variable. gcc turns it into the same asm as we used to have for both platforms. - We replace ppc32's 'local_flags' with the ppc64 'syscall_noerror' field. The noerror flag was in fact the only thing in the local_flags field anyway, so the ppc64 approach is simpler, and means we only need a load-immediate/store instead of load/mask/store when clearing the flag. - In readiness for 64k pages, when THREAD_SIZE will be less than a page, ppc64 used kmalloc() rather than get_free_pages() to allocate the kernel stack. With this patch we do the same for ppc32, since there's no strong reason not to. - For ppc64, we no longer export THREAD_SHIFT and THREAD_SIZE via asm-offsets, thread_info.h can now be safely included in asm, as on ppc32. Built and booted on G4 Powerbook (ARCH=ppc and ARCH=powerpc) and Power5 (ARCH=ppc64 and ARCH=powerpc). Signed-off-by: David Gibson <david@gibson.dropbear.id.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20powerpc/ppc/ppc64: Various compile fixes.Paul Mackerras
This declares powersave_nap in system.h and makes it an int everywhere, fixes typos for the maple platform, fixes a couple of places where I missed removing the last two arguments from a message_pass function, and makes ppc64 consistent with ppc32 in the type of the pci_bridge.cfg_data field. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20powerpc: Merge various powermac-related header files.Paul Mackerras
Except for smu.h, which moved from asm-ppc64 to asm-powerpc, all of these moved from asm-ppc to asm-powerpc. In each case the asm-ppc64 version (if there was one) was just a single line including the asm-ppc version. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20powerpc: Move smp_mpic_message_pass into mpic.cPaul Mackerras
Having it here rather than in arch/ppc64/kernel/smp.c means that we can use it on 32-bit SMP systems easily with ARCH=powerpc. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20[PATCH] powerpc: Merge types.hBecky Bruce
This patch merges types.h into include/asm-powerpc. The only real change is the removal of the include of linux/config.h from the 32-bit version - it doesn't appear to be necessary. This patch has been built on several different 32 and 64-bit platforms, and booted on mpc8540_ads. Signed-off-by: Becky Bruce <becky.bruce@freescale.com> Signed-off-by: Kumar Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20[PATCH] powerpc: Merge ppc64 pmc.[ch] with ppc32 perfmon.[ch]David Gibson
This patches the ppc32 and ppc64 versions of the headers and .c files with helper functions for manipulating the performance counting hardware. As a side effect, it removes use of the term "perfmon" from ppc32, thus avoiding confusion with the unrelated performance counter interface from HP Labs also called "perfmon". Built, but not booted, for g5, pSeries, iSeries, and 32-bit Powermac with both ARCH=powerpc and ARCH=ppc{,64} as appropriate. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-20powerpc: Merge time.c and asm/time.h.Paul Mackerras
We now use the merged time.c for both 32-bit and 64-bit compilation with ARCH=powerpc, and for ARCH=ppc64, but not for ARCH=ppc32. This removes setup_default_decr (folds its function into time_init) and moves wakeup_decrementer into time.c. This also makes an asm-powerpc/rtc.h. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-19powerpc: Merge machdep.hPaul Mackerras
A few things change for consistency between ppc32 and ppc64: idle functions return void; *_get_boot_time functions return unsigned long (i.e. time_t) rather than filling in a struct rtc_time (since that's useful to the callers and easier for pmac to generate); *_get_rtc_time and *_set_rtc_time functions take a struct rtc_time; irq_canonicalize is gone; nvram_sync returns void. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-18powerpc: merge ppc signal.c and ppc64 signal32.cStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-14powerpc: move iSeries/HvCallPci.h to platforms/iseries/call_pci.hStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-14powerpc: move iSeries/HvCallHpt.h to platforms/iseries/call_hpt.hStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-14powerpc: eliminate DsaAddr from pci_dnStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-14powerpc: move iSeries/iSeries_pci.h to platforms/iseriesStephen Rothwell
The only real user of this file outside platforms/iseries was drivers/net/iseries_veth.c but all it wanted was ISERIES_HV_ADDR() so we move that to abs_addr.h (and lowercase it). Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-10-12ppc64: Remove duplicate versions of some headersPaul Mackerras
This removes three headers from include/asm-ppc64 that are now in include/asm-powerpc and are sufficiently similar that they can be used with ARCH=ppc64. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-12Merge from Linus' treePaul Mackerras
2005-10-11ppc64: Use merged versions of init_task.c and process.c.Paul Mackerras
These two files are now built in arch/powerpc/kernel instead of arch/ppc64/kernel. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10powerpc: Merge asm/unistd.hPaul Mackerras
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10powerpc: Merge asm/irq.hPaul Mackerras
Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10powerpc: Get iseries to compile with ARCH=powerpcPaul Mackerras
This moves the Device_List member from struct device_node to struct pci_dn, which cleans up the device_node and makes the code a little simpler. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10powerpc: Get 64-bit configs to compile with ARCH=powerpcPaul Mackerras
This is a bunch of mostly small fixes that are needed to get ARCH=powerpc to compile for 64-bit. This adds setup_64.c from arch/ppc64/kernel/setup.c and locks.c from arch/ppc64/lib/locks.c. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-10-10ppc64: Use the merged lmb routinesPaul Mackerras
The only real change here is that lmb_enforce_memory_limit now takes the memory_limit as a parameter instead of as a global variable. Signed-off-by: Paul Mackerras <paulus@samba.org>