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* powerpc: apply recent changes to merged codePaul Mackerras2005-10-30
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* Merge ../linux-2.6 by handPaul Mackerras2005-10-30
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* powerpc: Fix bug arising from having multiple memory_limit variablesPaul Mackerras2005-10-30
| | | | | | | | | | 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>
* powerpc: Fix time setting bug on 32-bitPaul Mackerras2005-10-30
| | | | | | | | | | | This fixes a bug where settimeofday would set the wrong parameters in do_gtod, resulting in gettimeofday returning a value about 4 hours after the correct time. The bug was that we divided a negative 64-bit value with do_div, which treated it as unsigned and gave us a result that was approximately 1.8e10 too large (since the divisor was 1e9). Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Remove T command from xmon help text since it no longer existsPaul Mackerras2005-10-29
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: import a gfp_t fix to arch/powerpc/mm/pgtable_32.cPaul Mackerras2005-10-29
| | | | | | | This applies the same fix as Al Viro recently made to arch/ppc/mm/pgtable.c. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: 32-bit needs cur_cpu_spec exported tooPaul Mackerras2005-10-29
| | | | | | | | Somehow we ended up with an #ifdef CONFIG_PPC64 around the export of cur_cpu_spec, but raid6 as a module needs it on ppc32 as well as ppc64. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Merge maple support code to arch/powerpc/platforms/maplePaul Mackerras2005-10-29
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Add -mno-altivec for ARCH=powerpc buildsPaul Mackerras2005-10-29
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc64 memory model depends on NUMAAndy Whitcroft2005-10-29
| | | | | | | | | | | | | | | Currently when we first select memory model (FLAT, DISCONTIG, SPARSE) then select whether the machine is NUMA. However NUMA systems may not be FLAT. This constraint it not honoured and we may configure a NUMA/FLAT system. Reorder the configuration such that we choose NUMA first which allows us to only list the memory models which are valid. We now default NUMA for known NUMA systems. Note that this new order also matches that used in x86. Signed-off-by: Andy Whitcroft <apw@shadowen.org> Signed-off-by: Joel Schopp <jschopp@austin.ibm.com> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc64: remove duplicate local variable in set_preferred_consoleOlaf Hering2005-10-29
| | | | | | | | remove duplicate local variable, saves 2 asm instructions. Signed-off-by: Olaf Hering <olh@suse.de> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] chrp_pegasos_eth: Added Marvell Discovery II SRAM supportNicolas DET2005-10-29
| | | | | | | | | | | Add proper entry to support the Marvell MV64361 (Marvell Discovery II) SRAM. This feature may be used by the mv643xx_eth driver. Signed-off-by: Nicolas DET <det.nicolas@free.fr> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc32: nvram driver for chrpOlaf Hering2005-10-29
| | | | | | | | | | This implements a nvram acccess method, similar to arch/ppc64/kernel/pSeries_nvram.c tested on CHRP B50. Signed-off-by: Olaf Hering <olh@suse.de> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] ppc: make phys_mem_access_prot() work with pfns instead of addressesRoland Dreier2005-10-29
| | | | | | | | | | | | | | | | | | 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>
* powerpc: Merge xmonPaul Mackerras2005-10-28
| | | | | | | | | | | The merged version follows the ppc64 version pretty closely mostly, and in fact ARCH=ppc64 now uses the arch/powerpc/xmon version. The main difference for ppc64 is that the 'p' command to call show_state (which was always pretty dodgy) has been replaced by the ppc32 'p' command, which calls a given procedure (so in fact the old 'p' command behaviour can be achieved with 'p $show_state'). Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Make single-stepping emulation (mostly) usable on 32-bitPaul Mackerras2005-10-28
| | | | | | | 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>
* powerpc: Rename asm offset TRAP to _TRAP for 32-bitPaul Mackerras2005-10-28
| | | | | | ... for consistency with 64-bit. Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Move xics.[ch] into platforms/pseriesDavid Gibson2005-10-28
| | | | | | | | | | | 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>
* Merge git://oak/home/sfr/kernels/iseries/work/Paul Mackerras2005-10-27
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| * ppc64: use mem_64.S from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | and remove the same bits from ppc64/lib/string.S. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use usercopy_64.c from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | since it is identical to usercopy.c from ppc64/lib. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: user strcase.c from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | since it is identical to strcase.c from ppc64/lib. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use sstep.c from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | since it is identical to sstep.c from ppc64/lib. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use memcpy_64.S from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | since it is identical to mempcy.S from ppc64/lib. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use lockc.c from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | since it is effectively the same as locks.c from ppc64/lib. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use copyuser_64.S from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | since it is identical to copyuser.S from ppc64/lib. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use copypage_64.S from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | since it is identical to copypage.S from ppc64/lib. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use e2a.c from powerpc/libStephen Rothwell2005-10-27
| | | | | | | | | | | | since it is identical to e2a.c from ppc64/lib Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use checksum_64.S from powerpcStephen Rothwell2005-10-27
| | | | | | | | | | | | as it is identical to checksum.S from ppc64. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
| * ppc64: use the merged syscall tableStephen Rothwell2005-10-27
| | | | | | | | | | | | | | This allows us to also use entry_64.S from the merged tree and reverts the setup_64.c part of fda262b8978d0089758ef9444508434c74113a61. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
* | [PATCH] powerpc: Remove dregs of bootinfo.hDavid Gibson2005-10-27
| | | | | | | | | | | | | | | | | | | | 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>
* | [PATCH] powerpc: only build idle_6xx for 6xxKumar Gala2005-10-27
|/ | | | | | | For the current time idle_6xx only applies to 6xx ppc32 CPUs Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* ppc64: Include arch/powerpc/kernel/setup-common.oPaul Mackerras2005-10-27
| | | | | | | ... which is needed now that ARCH=ppc64 is using the merged setup_64.c. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Move U3 IOMMU driver to arch/powerpc/sysdevPaul Mackerras2005-10-27
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix new-world powermac detectionPaul Mackerras2005-10-27
| | | | | | | My G5 was being reported as an OldWorld in /proc/cpuinfo, which is obviously not right... :) Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Introduce toreal/fromreal assembly macrosPaul Mackerras2005-10-27
| | | | | | | | | | | | On 32-bit platforms, these convert from kernel virtual addresses to real (physical addresses), like tophys/tovirt but they use the same register for the source and destination. On 64-bit platforms, they do nothing because the hardware ignores the top two bits of the address in real mode. These new macros are used in fpu.S now. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: 32-bit CHRP SMP fixesPaul Mackerras2005-10-27
| | | | | | Untested, but "should" work... at least this way it compiles. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: remove duplicate screen_info from setup_32.cPaul Mackerras2005-10-27
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Moved dcr support to arch/powerpcKumar Gala2005-10-27
| | | | | Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fix warning related to do_dabrKumar Gala2005-10-27
| | | | | | | do_dabr() is not relevant on 40x or Book-E processors so dont build it Signed-off-by: Kumar K. Gala <kumar.gala@freescale.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Purge bootinfo.hDavid Gibson2005-10-27
| | | | | | | | | | | | | | | | | With ARCH=powerpc we assume the presence of a device tree, so we don't require any support for the old bi_recs method of passing boot parameters. Likewise, we've never needed it for ppc64, but we still had an include/asm-ppc64/bootinfo.h from which nothing was used. This patch removes that file, and all references to it in arch/ppc64 and arch/powerpc. A related, unused variable 'boot_mem_size' is also removed from setup_32.c. The bootinfo stuff remains in ARCH=ppc for the time being. Built and booted on Power5 (ARCH=ppc64 and ARCH=powerpc), built for 32-bit powermac (ARCH=powerpc and ARCH=ppc). Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
* [PATCH] powerpc: Fix handling of fpscr on 64-bitDavid Gibson2005-10-27
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* [PATCH] ppc64: remove arch/ppc64/kernel/setup.cPaul Mackerras2005-10-27
| | | | | | | | and use setup_64.c from the merged tree instead. The only difference between them was the code to set up the syscall maps. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Remove common stuff from setup_64.cPaul Mackerras2005-10-26
| | | | | | | This should have been in commit 03501dab035ab7da5e1373f5e130cfd6346d3f21 but got missed by accident. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: 32-bit powermac needs the mpc106 codePaul Mackerras2005-10-26
| | | | Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fix incorrect timer register addresses in mpic.cPaul Mackerras2005-10-26
| | | | | | | | We were computing the wrong address for the MPIC timer registers, so when we went to initialize them we would have been hitting some unrelated ioremap... oops. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc32: Limit memory to lowmem if !CONFIG_HIGHMEM.Paul Mackerras2005-10-26
| | | | | | | This trims off the extra unusable memory from the lmb structure, so we don't try to use it. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Fixes to get the Longtrail CHRP a bit furtherPaul Mackerras2005-10-26
| | | | | | | | | | | | | | | | | Talk about buggy firmware... the OF on the Longtrail returns 0 from the claim client service rather than -1 when the claim fails. It also has no device_type on the /memory node and blows up if the output buffer for package-to-path is too big. This also fixes a bug with calling alloc_up with align == 0, where we did _ALIGN_UP(alloc_bottom, 0) which will end up as 0. Lastly, we now check the return value (in r3) from calling the prom, and return -1 from call_prom if we get a negative value back. That is supposed to indicate that the requested client service doesn't exist. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Merge 32-bit CHRP support.Paul Mackerras2005-10-26
| | | | | | | SMP still needs more work but UP gets as far as starting userspace at least. This uses the 64-bit-style code for spinning up the cpus. Signed-off-by: Paul Mackerras <paulus@samba.org>
* powerpc: Don't limit pmac_get_rtc_time to return only positive valuesPaul Mackerras2005-10-26
| | | | | | | | If the machine's clock is set to a bogus value, this check resulted in userland waiting effectively forever for the RTC value to change, so remove the check. Signed-off-by: Paul Mackerras <paulus@samba.org>
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