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2005-11-06[PATCH] ppc64: support 64k pagesBenjamin Herrenschmidt
Adds a new CONFIG_PPC_64K_PAGES which, when enabled, changes the kernel base page size to 64K. The resulting kernel still boots on any hardware. On current machines with 4K pages support only, the kernel will maintain 16 "subpages" for each 64K page transparently. Note that while real 64K capable HW has been tested, the current patch will not enable it yet as such hardware is not released yet, and I'm still verifying with the firmware architects the proper to get the information from the newer hypervisors. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
2005-11-05powerpc: Merge smp.c and smp.hPaul Mackerras
This also moves setup_cpu_maps to setup-common.c (calling it smp_setup_cpu_maps) and uses it on both 32-bit and 64-bit. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-04Merge git://oak/home/sfr/kernels/iseries/workPaul Mackerras
2005-11-04powerpc: merge tlbflush.hStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-04Merge with PaulusMichael Ellerman
2005-11-04powerpc: Fix random memory corruption in merged elf.hMichael Ellerman
The merged verison of ELF_CORE_COPY_REGS is basically the PPC64 version, with a memset that came from PPC and a few types abstracted out into #defines. But it's not _quite_ right. The first problem is we calculate the number of registers with: nregs = sizeof(struct pt_regs) / sizeof(ELF_GREG_TYPE) For a 32-bit process on a 64-bit kernel that's bogus because the registers are 64 bits, but ELF_GREG_TYPE is u32, so nregs == 88 which is wrong. The other problem is the memset, which assumes a struct pt_regs is smaller than a struct elf_regs. For a 32-bit process on a 64-bit kernel that's false. The fix is to calculate the number of regs using sizeof(unsigned long), which should always be right, and just memset the whole damn thing _before_ copying the registers in. Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2005-11-04powerpc: merge tlb.hStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-03powerpc: Add helper functions for synthesising instructions at runtimeMichael Ellerman
There's a few places already, and soon will be more, where we synthesise branch instructions at runtime. Rather than doing it by hand in each case, it would make sense to have one implementation. Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2005-11-03Merge git://oak/home/sfr/kernels/iseries/workPaul Mackerras
2005-11-03powerpc: merge ucontext.hStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-03[PATCH] powerpc: Keep fixing merged ipcbuf.hDavid Gibson
Oops, replacing the two u64s in struct ipc64_perm with __u32s changed the alignment of that structure, which could mess up userspace. Revert to using two unsigned long longs (which is what ppc32 had originally). ppc64 orignally had two unsigned longs, but long long is the same size on 64 bit, so this should be ok there too. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-03powerpc: merge sigcontext.hStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-03powerpc: merge ptrace.hStephen Rothwell
Move struct ptregs32 into asm-ppc64/ppc32.h Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-03powerpc: merge stat.hStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-03powerpc: Merge asm-ppc/kexec.h and asm-ppc64/kexec.hMichael Ellerman
Merge include/asm-ppc/kexec.h and include/asm-ppc64/kexec.h. The only thing that's really changed is that we now allocate crash_notes properly on PPC32. It's address is exported via sysfs, so it's not correct for it to be a pointer. I've also removed some of the "we don't use this" comments, because they're wrong (or perhaps were referring only to arch code). Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2005-11-03powerpc: Make set_dabr() a ppc_md functionMichael Ellerman
Move pSeries specific code in set_dabr() into a ppc_md function, this will allow us to keep plpar_wrappers.h private to platforms/pseries. Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
2005-11-03powerpc: Merge remaining RTAS codePaul Mackerras
This moves rtas-proc.c and rtas_flash.c into arch/powerpc/kernel, since cell wants them as well as pseries (and chrp can use rtas-proc.c too, at least in principle). rtas_fw.c is gone, with its bits moved into rtas_flash.c and rtas.c. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-02Merge Paulus' treeStephen Rothwell
2005-11-02Merge iSeries include file moveStephen Rothwell
2005-11-02modify defines according to _ASM_POWERPC_ISERIES_Kelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
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>
2005-11-02fix incorrect dirKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02powerpc: clean up bug.h furtherPaul Mackerras
This simplifies the macros which are different between 32-bit and 64-bit. It also fixes a couple of printks on the bug->line element, which is now a long. Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-02Merge git://oak/home/sfr/kernels/iseries/workPaul Mackerras
2005-11-02merge filename and modify references to iseries/vio.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iSeries/mf.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/iseries_io.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/lpar_map.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02[PATCH] ppc bug.h namespace pollutionAl Viro
DATA_TYPE is really not a good thing to put into header that gets included all over the tree... Just make the cast always (long) and get rid of DATA_TYPE altogether. Signed-off-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-02merge filename and modify references to iseries/it_lp_reg_save.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
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>
2005-11-02[PATCH] powerpc: Fix merged ipcbuf.hDavid Gibson
Oops, when merging ipcbuf.h, I forgot that 'u64' can't be used in user-visible headers. This patch corrects the problem, replacing the unused fields with an array of four __u32s. Signed-off-by: David Gibson <dwg@au1.ibm.com> Signed-off-by: Paul Mackerras <paulus@samba.org>
2005-11-02merge filename and modify references to iseries/it_lp_queue.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/it_lp_naca.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/it_exp_vpd_panel.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/hv_types.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/hv_lp_event.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify reference to iseries/hv_lp_config.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/hv_call_xm.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/hv_call_sc.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-02merge filename and modify references to iseries/hv_call_event.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-01powerpc: Fix BUG/WARN macros for 64-bitPaul Mackerras
The bug_entry struct had an int in the middle of pointers and unsigned longs, and the inline asm that generated the bug table entries didn't insert the necessary padding, so the fields following it didn't get initialized properly and an oops resulted. This changes the int field (the line number) to a long so that all the fields are the same size and no padding is required. 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: move rtas_fw.c out of platforms/pseriesArnd Bergmann
Cell uses the same code as pSeries for flashing the firmware through rtas, so the implementation should not be part of platforms/pseries. Put it into arch/powerpc/kernel instead. 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>
2005-11-01merge filename and modify references to iseries/hv_call.hKelly Daly
Signed-off-by: Kelly Daly <kelly@au.ibm.com>
2005-11-01powerpc: clean up uaccess.hStephen Rothwell
Use the best from each architecture. Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-01powerpc: use asm-generic/termios.hStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
2005-11-01powerpc: remove duplicate ioctl definitionsStephen Rothwell
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>