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974b9b2c68
All architectures define pte_index() as (address >> PAGE_SHIFT) & (PTRS_PER_PTE - 1) and all architectures define pte_offset_kernel() as an entry in the array of PTEs indexed by the pte_index(). For the most architectures the pte_offset_kernel() implementation relies on the availability of pmd_page_vaddr() that converts a PMD entry value to the virtual address of the page containing PTEs array. Let's move x86 definitions of the PTE accessors to the generic place in <linux/pgtable.h> and then simply drop the respective definitions from the other architectures. The architectures that didn't provide pmd_page_vaddr() are updated to have that defined. The generic implementation of pte_offset_kernel() can be overridden by an architecture and alpha makes use of this because it has special ordering requirements for its version of pte_offset_kernel(). [rppt@linux.ibm.com: v2] Link: http://lkml.kernel.org/r/20200514170327.31389-11-rppt@kernel.org [rppt@linux.ibm.com: update] Link: http://lkml.kernel.org/r/20200514170327.31389-12-rppt@kernel.org [rppt@linux.ibm.com: update] Link: http://lkml.kernel.org/r/20200514170327.31389-13-rppt@kernel.org [akpm@linux-foundation.org: fix x86 warning] [sfr@canb.auug.org.au: fix powerpc build] Link: http://lkml.kernel.org/r/20200607153443.GB738695@linux.ibm.com Signed-off-by: Mike Rapoport <rppt@linux.ibm.com> Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Cain <bcain@codeaurora.org> Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Chris Zankel <chris@zankel.net> Cc: "David S. Miller" <davem@davemloft.net> Cc: Geert Uytterhoeven <geert@linux-m68k.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Greg Ungerer <gerg@linux-m68k.org> Cc: Guan Xuetao <gxt@pku.edu.cn> Cc: Guo Ren <guoren@kernel.org> Cc: Heiko Carstens <heiko.carstens@de.ibm.com> Cc: Helge Deller <deller@gmx.de> Cc: Ingo Molnar <mingo@redhat.com> Cc: Ley Foon Tan <ley.foon.tan@intel.com> Cc: Mark Salter <msalter@redhat.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Matt Turner <mattst88@gmail.com> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Michal Simek <monstr@monstr.eu> Cc: Nick Hu <nickhu@andestech.com> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Richard Weinberger <richard@nod.at> Cc: Rich Felker <dalias@libc.org> Cc: Russell King <linux@armlinux.org.uk> Cc: Stafford Horne <shorne@gmail.com> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Tony Luck <tony.luck@intel.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Vineet Gupta <vgupta@synopsys.com> Cc: Will Deacon <will@kernel.org> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/20200514170327.31389-10-rppt@kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| device.h | ||
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| intel_ds.h | ||
| intel_mid_vrtc.h | ||
| intel_pconfig.h | ||
| intel_pt.h | ||
| intel_punit_ipc.h | ||
| intel_scu_ipc.h | ||
| intel_scu_ipc_legacy.h | ||
| intel_telemetry.h | ||
| invpcid.h | ||
| io.h | ||
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| irq.h | ||
| irq_regs.h | ||
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| Kbuild | ||
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| kprobes.h | ||
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| mem_encrypt.h | ||
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| misc.h | ||
| mmconfig.h | ||
| mmu.h | ||
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| mmx.h | ||
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| olpc.h | ||
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| orc_lookup.h | ||
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| page.h | ||
| page_32.h | ||
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| page_64.h | ||
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| page_types.h | ||
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| pci.h | ||
| pci_x86.h | ||
| percpu.h | ||
| perf_event.h | ||
| perf_event_p4.h | ||
| pgalloc.h | ||
| pgtable-2level.h | ||
| pgtable-2level_types.h | ||
| pgtable-3level.h | ||
| pgtable-3level_types.h | ||
| pgtable-invert.h | ||
| pgtable.h | ||
| pgtable_32.h | ||
| pgtable_32_areas.h | ||
| pgtable_32_types.h | ||
| pgtable_64.h | ||
| pgtable_64_types.h | ||
| pgtable_areas.h | ||
| pgtable_types.h | ||
| pkeys.h | ||
| platform_sst_audio.h | ||
| pm-trace.h | ||
| posix_types.h | ||
| preempt.h | ||
| probe_roms.h | ||
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| processor.h | ||
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| pvclock-abi.h | ||
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| qspinlock_paravirt.h | ||
| realmode.h | ||
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| required-features.h | ||
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| set_memory.h | ||
| setup.h | ||
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| shmparam.h | ||
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| signal.h | ||
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| spec-ctrl.h | ||
| special_insns.h | ||
| spinlock.h | ||
| spinlock_types.h | ||
| sta2x11.h | ||
| stackprotector.h | ||
| stacktrace.h | ||
| string.h | ||
| string_32.h | ||
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| suspend.h | ||
| suspend_32.h | ||
| suspend_64.h | ||
| svm.h | ||
| swiotlb.h | ||
| switch_to.h | ||
| sync_bitops.h | ||
| sync_core.h | ||
| syscall.h | ||
| syscall_wrapper.h | ||
| syscalls.h | ||
| sysfb.h | ||
| text-patching.h | ||
| thread_info.h | ||
| time.h | ||
| timer.h | ||
| timex.h | ||
| tlb.h | ||
| tlbbatch.h | ||
| tlbflush.h | ||
| topology.h | ||
| trace_clock.h | ||
| traps.h | ||
| tsc.h | ||
| uaccess.h | ||
| uaccess_32.h | ||
| uaccess_64.h | ||
| umip.h | ||
| unaligned.h | ||
| unistd.h | ||
| unwind.h | ||
| unwind_hints.h | ||
| uprobes.h | ||
| user.h | ||
| user32.h | ||
| user_32.h | ||
| user_64.h | ||
| vdso.h | ||
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| vga.h | ||
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| vmalloc.h | ||
| vmware.h | ||
| vmx.h | ||
| vmxfeatures.h | ||
| vsyscall.h | ||
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| word-at-a-time.h | ||
| x86_init.h | ||
| xor.h | ||
| xor_32.h | ||
| xor_64.h | ||
| xor_avx.h | ||