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Message-ID: <20230215165501.GA3786546@roeck-us.net>
Date: Wed, 15 Feb 2023 08:55:01 -0800
From: Guenter Roeck <linux@...ck-us.net>
To: Ard Biesheuvel <ardb@...nel.org>
Cc: linux-kernel@...r.kernel.org, Jonathan Corbet <corbet@....net>,
Arnd Bergmann <arnd@...db.de>, Tony Luck <tony.luck@...el.com>,
Jessica Clarke <jrtc27@...c27.com>,
John Paul Adrian Glaubitz <glaubitz@...sik.fu-berlin.de>,
Matthew Wilcox <willy@...radead.org>,
Marc Zyngier <maz@...nel.org>,
Linus Torvalds <torvalds@...ux-foundation.org>,
linux-ia64@...r.kernel.org
Subject: Re: [RFC PATCH 1/5] arch: Remove Itanium (IA-64) architecture
On Wed, Feb 15, 2023 at 11:00:04AM +0100, Ard Biesheuvel wrote:
> Itanium is the original architecture for which EFI was developed, and
> the way Linux supports it deviates significantly from other
> architectures.
>
> So it is anyone's guess whether the ongoing maintenance and developement
> of the EFI subsystem has regressed Itanium or not - QEMU no longer
> implements support for it, and so there is zero test coverage using
> actual hardware.
>
> Note that the Intel firmware team themselves already removed all IA-64
> support from the Tianocore/EDK2 reference implementation of EFI in 2018,
> so let's follow suit, and drop IA-64 from Linux as well.
>
> Acked-by: Tony Luck <tony.luck@...el.com>
> Signed-off-by: Ard Biesheuvel <ardb@...nel.org>
Acked-by: Guenter Roeck <linux@...ck-us.net>
> ---
> Documentation/core-api/cpu_hotplug.rst | 6 -
> Documentation/ia64/aliasing.rst | 246 ---
> Documentation/ia64/efirtc.rst | 144 --
> Documentation/ia64/err_inject.rst | 1067 ---------
> Documentation/ia64/features.rst | 3 -
> Documentation/ia64/fsys.rst | 303 ---
> Documentation/ia64/ia64.rst | 49 -
> Documentation/ia64/index.rst | 19 -
> Documentation/ia64/irq-redir.rst | 80 -
> Documentation/ia64/mca.rst | 198 --
> Documentation/ia64/serial.rst | 165 --
> MAINTAINERS | 11 -
> arch/Kconfig | 1 -
> arch/ia64/Kbuild | 3 -
> arch/ia64/Kconfig | 410 ----
> arch/ia64/Kconfig.debug | 55 -
> arch/ia64/Makefile | 82 -
> arch/ia64/configs/bigsur_defconfig | 102 -
> arch/ia64/configs/generic_defconfig | 206 --
> arch/ia64/configs/gensparse_defconfig | 184 --
> arch/ia64/configs/tiger_defconfig | 169 --
> arch/ia64/configs/zx1_defconfig | 148 --
> arch/ia64/hp/common/Makefile | 10 -
> arch/ia64/hp/common/aml_nfw.c | 232 --
> arch/ia64/hp/common/sba_iommu.c | 2147 ------------------
> arch/ia64/include/asm/Kbuild | 5 -
> arch/ia64/include/asm/acenv.h | 49 -
> arch/ia64/include/asm/acpi-ext.h | 17 -
> arch/ia64/include/asm/acpi.h | 110 -
> arch/ia64/include/asm/agp.h | 27 -
> arch/ia64/include/asm/asm-offsets.h | 1 -
> arch/ia64/include/asm/asm-prototypes.h | 30 -
> arch/ia64/include/asm/asmmacro.h | 136 --
> arch/ia64/include/asm/atomic.h | 223 --
> arch/ia64/include/asm/barrier.h | 79 -
> arch/ia64/include/asm/bitops.h | 453 ----
> arch/ia64/include/asm/bug.h | 19 -
> arch/ia64/include/asm/bugs.h | 20 -
> arch/ia64/include/asm/cache.h | 30 -
> arch/ia64/include/asm/cacheflush.h | 33 -
> arch/ia64/include/asm/checksum.h | 63 -
> arch/ia64/include/asm/clocksource.h | 11 -
> arch/ia64/include/asm/cmpxchg.h | 16 -
> arch/ia64/include/asm/cpu.h | 23 -
> arch/ia64/include/asm/cputime.h | 21 -
> arch/ia64/include/asm/current.h | 18 -
> arch/ia64/include/asm/cyclone.h | 16 -
> arch/ia64/include/asm/delay.h | 89 -
> arch/ia64/include/asm/device.h | 14 -
> arch/ia64/include/asm/div64.h | 1 -
> arch/ia64/include/asm/dma-mapping.h | 16 -
> arch/ia64/include/asm/dma.h | 17 -
> arch/ia64/include/asm/dmi.h | 15 -
> arch/ia64/include/asm/early_ioremap.h | 11 -
> arch/ia64/include/asm/efi.h | 13 -
> arch/ia64/include/asm/elf.h | 233 --
> arch/ia64/include/asm/emergency-restart.h | 6 -
> arch/ia64/include/asm/esi.h | 30 -
> arch/ia64/include/asm/exception.h | 23 -
> arch/ia64/include/asm/export.h | 3 -
> arch/ia64/include/asm/extable.h | 12 -
> arch/ia64/include/asm/fb.h | 24 -
> arch/ia64/include/asm/fpswa.h | 74 -
> arch/ia64/include/asm/ftrace.h | 28 -
> arch/ia64/include/asm/futex.h | 109 -
> arch/ia64/include/asm/gcc_intrin.h | 13 -
> arch/ia64/include/asm/hardirq.h | 27 -
> arch/ia64/include/asm/hugetlb.h | 34 -
> arch/ia64/include/asm/hw_irq.h | 167 --
> arch/ia64/include/asm/idle.h | 8 -
> arch/ia64/include/asm/intrinsics.h | 13 -
> arch/ia64/include/asm/io.h | 274 ---
> arch/ia64/include/asm/iommu.h | 22 -
> arch/ia64/include/asm/iosapic.h | 106 -
> arch/ia64/include/asm/irq.h | 37 -
> arch/ia64/include/asm/irq_regs.h | 1 -
> arch/ia64/include/asm/irq_remapping.h | 5 -
> arch/ia64/include/asm/irqflags.h | 95 -
> arch/ia64/include/asm/kdebug.h | 45 -
> arch/ia64/include/asm/kexec.h | 46 -
> arch/ia64/include/asm/kprobes.h | 116 -
> arch/ia64/include/asm/kregs.h | 166 --
> arch/ia64/include/asm/libata-portmap.h | 9 -
> arch/ia64/include/asm/linkage.h | 19 -
> arch/ia64/include/asm/local.h | 1 -
> arch/ia64/include/asm/mca.h | 185 --
> arch/ia64/include/asm/mca_asm.h | 245 ---
> arch/ia64/include/asm/meminit.h | 59 -
> arch/ia64/include/asm/mman.h | 18 -
> arch/ia64/include/asm/mmiowb.h | 17 -
> arch/ia64/include/asm/mmu.h | 14 -
> arch/ia64/include/asm/mmu_context.h | 194 --
> arch/ia64/include/asm/mmzone.h | 35 -
> arch/ia64/include/asm/module.h | 35 -
> arch/ia64/include/asm/module.lds.h | 14 -
> arch/ia64/include/asm/msidef.h | 43 -
> arch/ia64/include/asm/native/inst.h | 119 -
> arch/ia64/include/asm/native/irq.h | 20 -
> arch/ia64/include/asm/native/patchlist.h | 24 -
> arch/ia64/include/asm/nodedata.h | 63 -
> arch/ia64/include/asm/numa.h | 83 -
> arch/ia64/include/asm/page.h | 214 --
> arch/ia64/include/asm/pal.h | 1827 ---------------
> arch/ia64/include/asm/param.h | 18 -
> arch/ia64/include/asm/parport.h | 20 -
> arch/ia64/include/asm/patch.h | 28 -
> arch/ia64/include/asm/pci.h | 66 -
> arch/ia64/include/asm/percpu.h | 53 -
> arch/ia64/include/asm/pgalloc.h | 64 -
> arch/ia64/include/asm/pgtable.h | 520 -----
> arch/ia64/include/asm/processor.h | 663 ------
> arch/ia64/include/asm/ptrace.h | 146 --
> arch/ia64/include/asm/sal.h | 919 --------
> arch/ia64/include/asm/sections.h | 33 -
> arch/ia64/include/asm/serial.h | 17 -
> arch/ia64/include/asm/shmparam.h | 13 -
> arch/ia64/include/asm/signal.h | 33 -
> arch/ia64/include/asm/smp.h | 103 -
> arch/ia64/include/asm/sn/intr.h | 15 -
> arch/ia64/include/asm/sn/sn_sal.h | 124 --
> arch/ia64/include/asm/sparsemem.h | 28 -
> arch/ia64/include/asm/spinlock.h | 265 ---
> arch/ia64/include/asm/spinlock_types.h | 22 -
> arch/ia64/include/asm/string.h | 22 -
> arch/ia64/include/asm/switch_to.h | 71 -
> arch/ia64/include/asm/syscall.h | 65 -
> arch/ia64/include/asm/thread_info.h | 131 --
> arch/ia64/include/asm/timex.h | 47 -
> arch/ia64/include/asm/tlb.h | 50 -
> arch/ia64/include/asm/tlbflush.h | 128 --
> arch/ia64/include/asm/topology.h | 56 -
> arch/ia64/include/asm/types.h | 32 -
> arch/ia64/include/asm/uaccess.h | 265 ---
> arch/ia64/include/asm/uncached.h | 9 -
> arch/ia64/include/asm/unistd.h | 38 -
> arch/ia64/include/asm/unwind.h | 234 --
> arch/ia64/include/asm/user.h | 53 -
> arch/ia64/include/asm/ustack.h | 12 -
> arch/ia64/include/asm/uv/uv.h | 30 -
> arch/ia64/include/asm/uv/uv_hub.h | 315 ---
> arch/ia64/include/asm/uv/uv_mmrs.h | 825 -------
> arch/ia64/include/asm/vermagic.h | 15 -
> arch/ia64/include/asm/vga.h | 26 -
> arch/ia64/include/asm/vmalloc.h | 4 -
> arch/ia64/include/asm/xor.h | 30 -
> arch/ia64/include/asm/xtp.h | 46 -
> arch/ia64/include/uapi/asm/Kbuild | 2 -
> arch/ia64/include/uapi/asm/auxvec.h | 14 -
> arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
> arch/ia64/include/uapi/asm/break.h | 23 -
> arch/ia64/include/uapi/asm/byteorder.h | 7 -
> arch/ia64/include/uapi/asm/cmpxchg.h | 159 --
> arch/ia64/include/uapi/asm/fcntl.h | 15 -
> arch/ia64/include/uapi/asm/fpu.h | 67 -
> arch/ia64/include/uapi/asm/gcc_intrin.h | 619 ------
> arch/ia64/include/uapi/asm/ia64regs.h | 101 -
> arch/ia64/include/uapi/asm/intel_intrin.h | 162 --
> arch/ia64/include/uapi/asm/intrinsics.h | 86 -
> arch/ia64/include/uapi/asm/mman.h | 17 -
> arch/ia64/include/uapi/asm/param.h | 30 -
> arch/ia64/include/uapi/asm/posix_types.h | 9 -
> arch/ia64/include/uapi/asm/ptrace.h | 248 ---
> arch/ia64/include/uapi/asm/ptrace_offsets.h | 269 ---
> arch/ia64/include/uapi/asm/resource.h | 8 -
> arch/ia64/include/uapi/asm/rse.h | 67 -
> arch/ia64/include/uapi/asm/setup.h | 25 -
> arch/ia64/include/uapi/asm/sigcontext.h | 71 -
> arch/ia64/include/uapi/asm/siginfo.h | 28 -
> arch/ia64/include/uapi/asm/signal.h | 98 -
> arch/ia64/include/uapi/asm/stat.h | 52 -
> arch/ia64/include/uapi/asm/statfs.h | 21 -
> arch/ia64/include/uapi/asm/swab.h | 35 -
> arch/ia64/include/uapi/asm/types.h | 32 -
> arch/ia64/include/uapi/asm/ucontext.h | 13 -
> arch/ia64/include/uapi/asm/unistd.h | 22 -
> arch/ia64/include/uapi/asm/ustack.h | 13 -
> arch/ia64/install.sh | 30 -
> arch/ia64/kernel/.gitignore | 3 -
> arch/ia64/kernel/Makefile | 46 -
> arch/ia64/kernel/Makefile.gate | 29 -
> arch/ia64/kernel/acpi-ext.c | 101 -
> arch/ia64/kernel/acpi.c | 911 --------
> arch/ia64/kernel/asm-offsets.c | 289 ---
> arch/ia64/kernel/audit.c | 63 -
> arch/ia64/kernel/brl_emu.c | 217 --
> arch/ia64/kernel/crash.c | 266 ---
> arch/ia64/kernel/crash_dump.c | 27 -
> arch/ia64/kernel/cyclone.c | 125 --
> arch/ia64/kernel/dma-mapping.c | 9 -
> arch/ia64/kernel/efi.c | 1360 ------------
> arch/ia64/kernel/efi_stub.S | 87 -
> arch/ia64/kernel/elfcore.c | 77 -
> arch/ia64/kernel/entry.S | 1428 ------------
> arch/ia64/kernel/entry.h | 83 -
> arch/ia64/kernel/err_inject.c | 273 ---
> arch/ia64/kernel/esi.c | 193 --
> arch/ia64/kernel/esi_stub.S | 99 -
> arch/ia64/kernel/fsys.S | 837 -------
> arch/ia64/kernel/fsyscall_gtod_data.h | 30 -
> arch/ia64/kernel/ftrace.c | 196 --
> arch/ia64/kernel/gate-data.S | 3 -
> arch/ia64/kernel/gate.S | 380 ----
> arch/ia64/kernel/gate.lds.S | 108 -
> arch/ia64/kernel/head.S | 1168 ----------
> arch/ia64/kernel/iosapic.c | 1137 ----------
> arch/ia64/kernel/irq.c | 181 --
> arch/ia64/kernel/irq.h | 3 -
> arch/ia64/kernel/irq_ia64.c | 645 ------
> arch/ia64/kernel/irq_lsapic.c | 45 -
> arch/ia64/kernel/ivt.S | 1689 --------------
> arch/ia64/kernel/kprobes.c | 911 --------
> arch/ia64/kernel/machine_kexec.c | 163 --
> arch/ia64/kernel/mca.c | 2111 ------------------
> arch/ia64/kernel/mca_asm.S | 1123 ----------
> arch/ia64/kernel/mca_drv.c | 796 -------
> arch/ia64/kernel/mca_drv.h | 123 --
> arch/ia64/kernel/mca_drv_asm.S | 56 -
> arch/ia64/kernel/minstate.h | 251 ---
> arch/ia64/kernel/module.c | 955 --------
> arch/ia64/kernel/msi_ia64.c | 198 --
> arch/ia64/kernel/numa.c | 73 -
> arch/ia64/kernel/pal.S | 306 ---
> arch/ia64/kernel/palinfo.c | 942 --------
> arch/ia64/kernel/patch.c | 237 --
> arch/ia64/kernel/pci-dma.c | 33 -
> arch/ia64/kernel/perfmon_itanium.h | 116 -
> arch/ia64/kernel/process.c | 610 -----
> arch/ia64/kernel/ptrace.c | 2012 -----------------
> arch/ia64/kernel/relocate_kernel.S | 321 ---
> arch/ia64/kernel/sal.c | 400 ----
> arch/ia64/kernel/salinfo.c | 646 ------
> arch/ia64/kernel/setup.c | 1082 ---------
> arch/ia64/kernel/sigframe.h | 26 -
> arch/ia64/kernel/signal.c | 412 ----
> arch/ia64/kernel/smp.c | 335 ---
> arch/ia64/kernel/smpboot.c | 839 -------
> arch/ia64/kernel/stacktrace.c | 40 -
> arch/ia64/kernel/sys_ia64.c | 197 --
> arch/ia64/kernel/syscalls/Makefile | 32 -
> arch/ia64/kernel/syscalls/syscall.tbl | 373 ----
> arch/ia64/kernel/time.c | 462 ----
> arch/ia64/kernel/topology.c | 410 ----
> arch/ia64/kernel/traps.c | 612 ------
> arch/ia64/kernel/unaligned.c | 1560 -------------
> arch/ia64/kernel/uncached.c | 273 ---
> arch/ia64/kernel/unwind.c | 2320 --------------------
> arch/ia64/kernel/unwind_decoder.c | 460 ----
> arch/ia64/kernel/unwind_i.h | 165 --
> arch/ia64/kernel/vmlinux.lds.S | 225 --
> arch/ia64/lib/Makefile | 48 -
> arch/ia64/lib/checksum.c | 102 -
> arch/ia64/lib/clear_page.S | 79 -
> arch/ia64/lib/clear_user.S | 212 --
> arch/ia64/lib/copy_page.S | 101 -
> arch/ia64/lib/copy_page_mck.S | 188 --
> arch/ia64/lib/copy_user.S | 613 ------
> arch/ia64/lib/csum_partial_copy.c | 98 -
> arch/ia64/lib/do_csum.S | 324 ---
> arch/ia64/lib/flush.S | 120 -
> arch/ia64/lib/idiv32.S | 86 -
> arch/ia64/lib/idiv64.S | 83 -
> arch/ia64/lib/io.c | 51 -
> arch/ia64/lib/ip_fast_csum.S | 148 --
> arch/ia64/lib/memcpy.S | 304 ---
> arch/ia64/lib/memcpy_mck.S | 659 ------
> arch/ia64/lib/memset.S | 365 ---
> arch/ia64/lib/strlen.S | 195 --
> arch/ia64/lib/strncpy_from_user.S | 47 -
> arch/ia64/lib/strnlen_user.S | 48 -
> arch/ia64/lib/xor.S | 181 --
> arch/ia64/mm/Makefile | 11 -
> arch/ia64/mm/contig.c | 208 --
> arch/ia64/mm/discontig.c | 635 ------
> arch/ia64/mm/extable.c | 24 -
> arch/ia64/mm/fault.c | 272 ---
> arch/ia64/mm/hugetlbpage.c | 186 --
> arch/ia64/mm/init.c | 518 -----
> arch/ia64/mm/ioremap.c | 123 --
> arch/ia64/mm/numa.c | 80 -
> arch/ia64/mm/tlb.c | 591 -----
> arch/ia64/pci/Makefile | 5 -
> arch/ia64/pci/fixup.c | 80 -
> arch/ia64/pci/pci.c | 576 -----
> arch/ia64/scripts/check-gas | 16 -
> arch/ia64/scripts/check-gas-asm.S | 2 -
> arch/ia64/scripts/check-model.c | 1 -
> arch/ia64/scripts/check-segrel.S | 5 -
> arch/ia64/scripts/check-segrel.lds | 13 -
> arch/ia64/scripts/check-serialize.S | 2 -
> arch/ia64/scripts/check-text-align.S | 7 -
> arch/ia64/scripts/toolchain-flags | 54 -
> arch/ia64/scripts/unwcheck.py | 65 -
> arch/ia64/uv/Makefile | 12 -
> arch/ia64/uv/kernel/Makefile | 12 -
> arch/ia64/uv/kernel/setup.c | 120 -
> drivers/acpi/Kconfig | 6 +-
> drivers/acpi/numa/Kconfig | 4 +-
> drivers/acpi/osl.c | 2 +-
> drivers/char/Kconfig | 4 +-
> drivers/char/Makefile | 1 -
> drivers/char/agp/Kconfig | 16 +-
> drivers/char/agp/Makefile | 2 -
> drivers/char/agp/hp-agp.c | 550 -----
> drivers/char/agp/i460-agp.c | 659 ------
> drivers/char/hpet.c | 30 -
> drivers/char/hw_random/Kconfig | 2 +-
> drivers/char/mem.c | 12 -
> drivers/char/mspec.c | 295 ---
> drivers/cpufreq/Kconfig | 11 -
> drivers/cpufreq/Makefile | 1 -
> drivers/cpufreq/ia64-acpi-cpufreq.c | 353 ---
> drivers/firmware/Kconfig | 24 -
> drivers/firmware/Makefile | 1 -
> drivers/firmware/efi/Kconfig | 6 +-
> drivers/firmware/efi/efi.c | 13 +-
> drivers/firmware/pcdp.c | 135 --
> drivers/firmware/pcdp.h | 108 -
> drivers/gpu/drm/drm_ioc32.c | 4 +-
> drivers/input/serio/i8042.h | 2 +-
> drivers/iommu/Kconfig | 4 +-
> drivers/iommu/intel/Kconfig | 2 +-
> drivers/media/cec/platform/Kconfig | 2 +-
> drivers/misc/Kconfig | 2 +-
> drivers/misc/sgi-gru/gru.h | 4 +-
> drivers/misc/sgi-gru/gru_instructions.h | 12 +-
> drivers/misc/sgi-gru/grufile.c | 72 -
> drivers/misc/sgi-gru/gruhandles.c | 6 -
> drivers/misc/sgi-gru/grumain.c | 4 -
> drivers/misc/sgi-xp/xp.h | 2 +-
> drivers/misc/sgi-xp/xp_uv.c | 24 -
> drivers/misc/sgi-xp/xpc_main.c | 31 -
> drivers/misc/sgi-xp/xpc_uv.c | 85 -
> drivers/net/ethernet/broadcom/tg3.c | 2 +-
> drivers/net/ethernet/brocade/bna/bnad.h | 1 -
> drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c | 2 -
> drivers/pci/vgaarb.c | 2 +-
> drivers/tty/serial/8250/Kconfig | 2 +-
> drivers/tty/vt/keyboard.c | 2 +-
> drivers/video/fbdev/Kconfig | 2 +-
> drivers/watchdog/Kconfig | 2 +-
> fs/Kconfig | 2 +-
> fs/afs/main.c | 2 -
> fs/xfs/xfs_ioctl32.h | 2 +-
> include/linux/acpi.h | 9 +-
> include/linux/efi.h | 7 -
> include/linux/mm.h | 2 -
> include/linux/moduleparam.h | 2 +-
> include/trace/events/mmflags.h | 2 +-
> init/Kconfig | 2 +-
> kernel/cpu.c | 3 -
> kernel/fork.c | 2 +-
> kernel/sched/core.c | 29 +-
> kernel/sysctl.c | 9 -
> lib/Kconfig.debug | 2 +-
> lib/decompress_unxz.c | 3 -
> lib/xz/Kconfig | 5 -
> mm/mmap.c | 6 +-
> scripts/headers_install.sh | 1 -
> tools/arch/ia64/include/asm/barrier.h | 59 -
> tools/arch/ia64/include/uapi/asm/bitsperlong.h | 9 -
> tools/arch/ia64/include/uapi/asm/mman.h | 7 -
> usr/include/Makefile | 6 -
> 362 files changed, 45 insertions(+), 65193 deletions(-)
>
> diff --git a/Documentation/core-api/cpu_hotplug.rst b/Documentation/core-api/cpu_hotplug.rst
> index f75778d374884810..67eab9742753e8f8 100644
> --- a/Documentation/core-api/cpu_hotplug.rst
> +++ b/Documentation/core-api/cpu_hotplug.rst
> @@ -40,12 +40,6 @@ Command Line Switches
> supplied here is lower than the number of physically available CPUs, then
> those CPUs can not be brought online later.
>
> -``additional_cpus=n``
> - Use this to limit hotpluggable CPUs. This option sets
> - ``cpu_possible_mask = cpu_present_mask + additional_cpus``
> -
> - This option is limited to the IA64 architecture.
> -
> ``possible_cpus=n``
> This option sets ``possible_cpus`` bits in ``cpu_possible_mask``.
>
> diff --git a/Documentation/ia64/aliasing.rst b/Documentation/ia64/aliasing.rst
> deleted file mode 100644
> index 36a1e1d4842b8139..0000000000000000
> diff --git a/Documentation/ia64/efirtc.rst b/Documentation/ia64/efirtc.rst
> deleted file mode 100644
> index fd832840830152b8..0000000000000000
> diff --git a/Documentation/ia64/err_inject.rst b/Documentation/ia64/err_inject.rst
> deleted file mode 100644
> index 900f71e93a29c5ae..0000000000000000
> diff --git a/Documentation/ia64/features.rst b/Documentation/ia64/features.rst
> deleted file mode 100644
> index d7226fdcf5f8c003..0000000000000000
> diff --git a/Documentation/ia64/fsys.rst b/Documentation/ia64/fsys.rst
> deleted file mode 100644
> index a702d2cc94b6300e..0000000000000000
> diff --git a/Documentation/ia64/ia64.rst b/Documentation/ia64/ia64.rst
> deleted file mode 100644
> index b725019a94927f72..0000000000000000
> diff --git a/Documentation/ia64/index.rst b/Documentation/ia64/index.rst
> deleted file mode 100644
> index 761f2154dfa27a30..0000000000000000
> diff --git a/Documentation/ia64/irq-redir.rst b/Documentation/ia64/irq-redir.rst
> deleted file mode 100644
> index 6bbbbe4f73efc487..0000000000000000
> diff --git a/Documentation/ia64/mca.rst b/Documentation/ia64/mca.rst
> deleted file mode 100644
> index 08270bba44a44313..0000000000000000
> diff --git a/Documentation/ia64/serial.rst b/Documentation/ia64/serial.rst
> deleted file mode 100644
> index 1de70c305a7911cd..0000000000000000
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 39ff1a7176252700..b797093f60cd048f 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -9840,12 +9840,6 @@ F: Documentation/driver-api/i3c
> F: drivers/i3c/
> F: include/linux/i3c/
>
> -IA64 (Itanium) PLATFORM
> -L: linux-ia64@...r.kernel.org
> -S: Orphan
> -F: Documentation/ia64/
> -F: arch/ia64/
> -
> IBM Operation Panel Input Driver
> M: Eddie James <eajames@...ux.ibm.com>
> L: linux-input@...r.kernel.org
> @@ -15930,11 +15924,6 @@ L: linux-i2c@...r.kernel.org
> S: Maintained
> F: drivers/i2c/muxes/i2c-mux-pca9541.c
>
> -PCDP - PRIMARY CONSOLE AND DEBUG PORT
> -M: Khalid Aziz <khalid@...ehiking.org>
> -S: Maintained
> -F: drivers/firmware/pcdp.*
> -
> PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
> M: Thomas Petazzoni <thomas.petazzoni@...tlin.com>
> M: Pali Rohár <pali@...nel.org>
> diff --git a/arch/Kconfig b/arch/Kconfig
> index 12e3ddabac9d3be0..774448a24c511f22 100644
> --- a/arch/Kconfig
> +++ b/arch/Kconfig
> @@ -1036,7 +1036,6 @@ config HAVE_ARCH_COMPAT_MMAP_BASES
> config PAGE_SIZE_LESS_THAN_64KB
> def_bool y
> depends on !ARM64_64K_PAGES
> - depends on !IA64_PAGE_SIZE_64KB
> depends on !PAGE_SIZE_64KB
> depends on !PARISC_PAGE_SIZE_64KB
> depends on PAGE_SIZE_LESS_THAN_256KB
> diff --git a/arch/ia64/Kbuild b/arch/ia64/Kbuild
> deleted file mode 100644
> index e77cc76d228cdb8c..0000000000000000
> diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
> deleted file mode 100644
> index d7e4a24e8644cdec..0000000000000000
> diff --git a/arch/ia64/Kconfig.debug b/arch/ia64/Kconfig.debug
> deleted file mode 100644
> index 2ce008e2d1644b84..0000000000000000
> diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
> deleted file mode 100644
> index d553ab7022fe4088..0000000000000000
> diff --git a/arch/ia64/configs/bigsur_defconfig b/arch/ia64/configs/bigsur_defconfig
> deleted file mode 100644
> index 3e1337aceb37154d..0000000000000000
> diff --git a/arch/ia64/configs/generic_defconfig b/arch/ia64/configs/generic_defconfig
> deleted file mode 100644
> index f8033bacea89e491..0000000000000000
> diff --git a/arch/ia64/configs/gensparse_defconfig b/arch/ia64/configs/gensparse_defconfig
> deleted file mode 100644
> index ffebe6c503f5119c..0000000000000000
> diff --git a/arch/ia64/configs/tiger_defconfig b/arch/ia64/configs/tiger_defconfig
> deleted file mode 100644
> index 45f5d6e2da0afc6a..0000000000000000
> diff --git a/arch/ia64/configs/zx1_defconfig b/arch/ia64/configs/zx1_defconfig
> deleted file mode 100644
> index ed104550d0d519a2..0000000000000000
> diff --git a/arch/ia64/hp/common/Makefile b/arch/ia64/hp/common/Makefile
> deleted file mode 100644
> index 11a56ed3822905e0..0000000000000000
> diff --git a/arch/ia64/hp/common/aml_nfw.c b/arch/ia64/hp/common/aml_nfw.c
> deleted file mode 100644
> index 901df49461a058fd..0000000000000000
> diff --git a/arch/ia64/hp/common/sba_iommu.c b/arch/ia64/hp/common/sba_iommu.c
> deleted file mode 100644
> index 8ad6946521d88d63..0000000000000000
> diff --git a/arch/ia64/include/asm/Kbuild b/arch/ia64/include/asm/Kbuild
> deleted file mode 100644
> index f994c1daf9d424f1..0000000000000000
> diff --git a/arch/ia64/include/asm/acenv.h b/arch/ia64/include/asm/acenv.h
> deleted file mode 100644
> index 9d673cd4c2ad1eaf..0000000000000000
> diff --git a/arch/ia64/include/asm/acpi-ext.h b/arch/ia64/include/asm/acpi-ext.h
> deleted file mode 100644
> index eaa57583d1515a78..0000000000000000
> diff --git a/arch/ia64/include/asm/acpi.h b/arch/ia64/include/asm/acpi.h
> deleted file mode 100644
> index 87927eb824ccd9ed..0000000000000000
> diff --git a/arch/ia64/include/asm/agp.h b/arch/ia64/include/asm/agp.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/asm-offsets.h b/arch/ia64/include/asm/asm-offsets.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/asm-prototypes.h b/arch/ia64/include/asm/asm-prototypes.h
> deleted file mode 100644
> index a96689447a74c62f..0000000000000000
> diff --git a/arch/ia64/include/asm/asmmacro.h b/arch/ia64/include/asm/asmmacro.h
> deleted file mode 100644
> index 52619c517f099e54..0000000000000000
> diff --git a/arch/ia64/include/asm/atomic.h b/arch/ia64/include/asm/atomic.h
> deleted file mode 100644
> index 266c429b91372e93..0000000000000000
> diff --git a/arch/ia64/include/asm/barrier.h b/arch/ia64/include/asm/barrier.h
> deleted file mode 100644
> index 751cdd3534469da4..0000000000000000
> diff --git a/arch/ia64/include/asm/bitops.h b/arch/ia64/include/asm/bitops.h
> deleted file mode 100644
> index 1accb7842f588064..0000000000000000
> diff --git a/arch/ia64/include/asm/bug.h b/arch/ia64/include/asm/bug.h
> deleted file mode 100644
> index 66b37a5327654f87..0000000000000000
> diff --git a/arch/ia64/include/asm/bugs.h b/arch/ia64/include/asm/bugs.h
> deleted file mode 100644
> index 0d6b9bded56c6ba2..0000000000000000
> diff --git a/arch/ia64/include/asm/cache.h b/arch/ia64/include/asm/cache.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/cacheflush.h b/arch/ia64/include/asm/cacheflush.h
> deleted file mode 100644
> index 708c0fa5d975e4d3..0000000000000000
> diff --git a/arch/ia64/include/asm/checksum.h b/arch/ia64/include/asm/checksum.h
> deleted file mode 100644
> index f3026213aa32b9ef..0000000000000000
> diff --git a/arch/ia64/include/asm/clocksource.h b/arch/ia64/include/asm/clocksource.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/cmpxchg.h b/arch/ia64/include/asm/cmpxchg.h
> deleted file mode 100644
> index 94ef844298431ad0..0000000000000000
> diff --git a/arch/ia64/include/asm/cpu.h b/arch/ia64/include/asm/cpu.h
> deleted file mode 100644
> index db125df9e0888228..0000000000000000
> diff --git a/arch/ia64/include/asm/cputime.h b/arch/ia64/include/asm/cputime.h
> deleted file mode 100644
> index 7f28c3564d5d5080..0000000000000000
> diff --git a/arch/ia64/include/asm/current.h b/arch/ia64/include/asm/current.h
> deleted file mode 100644
> index 86fbcc88dff2155b..0000000000000000
> diff --git a/arch/ia64/include/asm/cyclone.h b/arch/ia64/include/asm/cyclone.h
> deleted file mode 100644
> index a481393647e9e32c..0000000000000000
> diff --git a/arch/ia64/include/asm/delay.h b/arch/ia64/include/asm/delay.h
> deleted file mode 100644
> index 0227ac586107652c..0000000000000000
> diff --git a/arch/ia64/include/asm/device.h b/arch/ia64/include/asm/device.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/div64.h b/arch/ia64/include/asm/div64.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/dma-mapping.h b/arch/ia64/include/asm/dma-mapping.h
> deleted file mode 100644
> index a5d9d788eede1f1d..0000000000000000
> diff --git a/arch/ia64/include/asm/dma.h b/arch/ia64/include/asm/dma.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/dmi.h b/arch/ia64/include/asm/dmi.h
> deleted file mode 100644
> index ecd9e0a0f5f98ee1..0000000000000000
> diff --git a/arch/ia64/include/asm/early_ioremap.h b/arch/ia64/include/asm/early_ioremap.h
> deleted file mode 100644
> index 934191b1e2e3eaa4..0000000000000000
> diff --git a/arch/ia64/include/asm/efi.h b/arch/ia64/include/asm/efi.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/elf.h b/arch/ia64/include/asm/elf.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/emergency-restart.h b/arch/ia64/include/asm/emergency-restart.h
> deleted file mode 100644
> index 108d8c48e42e8697..0000000000000000
> diff --git a/arch/ia64/include/asm/esi.h b/arch/ia64/include/asm/esi.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/exception.h b/arch/ia64/include/asm/exception.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/export.h b/arch/ia64/include/asm/export.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/extable.h b/arch/ia64/include/asm/extable.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/fb.h b/arch/ia64/include/asm/fb.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/fpswa.h b/arch/ia64/include/asm/fpswa.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/ftrace.h b/arch/ia64/include/asm/ftrace.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/gcc_intrin.h b/arch/ia64/include/asm/gcc_intrin.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/hardirq.h b/arch/ia64/include/asm/hardirq.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/hugetlb.h b/arch/ia64/include/asm/hugetlb.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/hw_irq.h b/arch/ia64/include/asm/hw_irq.h
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> diff --git a/arch/ia64/include/asm/idle.h b/arch/ia64/include/asm/idle.h
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> diff --git a/arch/ia64/include/asm/intrinsics.h b/arch/ia64/include/asm/intrinsics.h
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> diff --git a/arch/ia64/include/asm/io.h b/arch/ia64/include/asm/io.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/iommu.h b/arch/ia64/include/asm/iommu.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/iosapic.h b/arch/ia64/include/asm/iosapic.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/irq.h b/arch/ia64/include/asm/irq.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/irq_regs.h b/arch/ia64/include/asm/irq_regs.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/irq_remapping.h b/arch/ia64/include/asm/irq_remapping.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/irqflags.h b/arch/ia64/include/asm/irqflags.h
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> diff --git a/arch/ia64/include/asm/kdebug.h b/arch/ia64/include/asm/kdebug.h
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> diff --git a/arch/ia64/include/asm/kregs.h b/arch/ia64/include/asm/kregs.h
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> diff --git a/arch/ia64/include/asm/libata-portmap.h b/arch/ia64/include/asm/libata-portmap.h
> deleted file mode 100644
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> diff --git a/arch/ia64/include/asm/linkage.h b/arch/ia64/include/asm/linkage.h
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> diff --git a/arch/ia64/include/asm/local.h b/arch/ia64/include/asm/local.h
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> diff --git a/arch/ia64/include/asm/mca.h b/arch/ia64/include/asm/mca.h
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> diff --git a/arch/ia64/include/asm/mca_asm.h b/arch/ia64/include/asm/mca_asm.h
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> diff --git a/arch/ia64/include/asm/meminit.h b/arch/ia64/include/asm/meminit.h
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> diff --git a/arch/ia64/include/asm/mmu.h b/arch/ia64/include/asm/mmu.h
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> diff --git a/arch/ia64/mm/ioremap.c b/arch/ia64/mm/ioremap.c
> deleted file mode 100644
> index 55fd3eb753ff94fe..0000000000000000
> diff --git a/arch/ia64/mm/numa.c b/arch/ia64/mm/numa.c
> deleted file mode 100644
> index 4c7b1f50e3b7d50c..0000000000000000
> diff --git a/arch/ia64/mm/tlb.c b/arch/ia64/mm/tlb.c
> deleted file mode 100644
> index ca060e7a2a466fc0..0000000000000000
> diff --git a/arch/ia64/pci/Makefile b/arch/ia64/pci/Makefile
> deleted file mode 100644
> index 81ea50eeb5271606..0000000000000000
> diff --git a/arch/ia64/pci/fixup.c b/arch/ia64/pci/fixup.c
> deleted file mode 100644
> index 2bcdd7d3a1adad58..0000000000000000
> diff --git a/arch/ia64/pci/pci.c b/arch/ia64/pci/pci.c
> deleted file mode 100644
> index 211757e34198a352..0000000000000000
> diff --git a/arch/ia64/scripts/check-gas b/arch/ia64/scripts/check-gas
> deleted file mode 100755
> index 787cf9b6b04a6837..0000000000000000
> diff --git a/arch/ia64/scripts/check-gas-asm.S b/arch/ia64/scripts/check-gas-asm.S
> deleted file mode 100644
> index 010e1d227e5dbeb1..0000000000000000
> diff --git a/arch/ia64/scripts/check-model.c b/arch/ia64/scripts/check-model.c
> deleted file mode 100644
> index e1d4e86e3d63b430..0000000000000000
> diff --git a/arch/ia64/scripts/check-segrel.S b/arch/ia64/scripts/check-segrel.S
> deleted file mode 100644
> index 65d6378adaaaa5fb..0000000000000000
> diff --git a/arch/ia64/scripts/check-segrel.lds b/arch/ia64/scripts/check-segrel.lds
> deleted file mode 100644
> index c385d246e45846e2..0000000000000000
> diff --git a/arch/ia64/scripts/check-serialize.S b/arch/ia64/scripts/check-serialize.S
> deleted file mode 100644
> index 0400c106806cd58d..0000000000000000
> diff --git a/arch/ia64/scripts/check-text-align.S b/arch/ia64/scripts/check-text-align.S
> deleted file mode 100644
> index 107fa1c88c2e115f..0000000000000000
> diff --git a/arch/ia64/scripts/toolchain-flags b/arch/ia64/scripts/toolchain-flags
> deleted file mode 100755
> index 12dff5c981cf1cf3..0000000000000000
> diff --git a/arch/ia64/scripts/unwcheck.py b/arch/ia64/scripts/unwcheck.py
> deleted file mode 100644
> index 9581742f0db23c21..0000000000000000
> diff --git a/arch/ia64/uv/Makefile b/arch/ia64/uv/Makefile
> deleted file mode 100644
> index aa9f91947c492341..0000000000000000
> diff --git a/arch/ia64/uv/kernel/Makefile b/arch/ia64/uv/kernel/Makefile
> deleted file mode 100644
> index 297196578d19d409..0000000000000000
> diff --git a/arch/ia64/uv/kernel/setup.c b/arch/ia64/uv/kernel/setup.c
> deleted file mode 100644
> index bb025486d7912d2f..0000000000000000
> diff --git a/drivers/acpi/Kconfig b/drivers/acpi/Kconfig
> index ccbeab9500ecb003..92c0bdadf5283659 100644
> --- a/drivers/acpi/Kconfig
> +++ b/drivers/acpi/Kconfig
> @@ -257,7 +257,7 @@ config ACPI_CPU_FREQ_PSS
> config ACPI_PROCESSOR_CSTATE
> def_bool y
> depends on ACPI_PROCESSOR
> - depends on IA64 || X86
> + depends on X86
>
> config ACPI_PROCESSOR_IDLE
> bool
> @@ -281,9 +281,9 @@ config ACPI_CPPC_LIB
>
> config ACPI_PROCESSOR
> tristate "Processor"
> - depends on X86 || IA64 || ARM64 || LOONGARCH
> + depends on X86 || ARM64 || LOONGARCH
> select ACPI_PROCESSOR_IDLE
> - select ACPI_CPU_FREQ_PSS if X86 || IA64 || LOONGARCH
> + select ACPI_CPU_FREQ_PSS if X86 || LOONGARCH
> select THERMAL
> default y
> help
> diff --git a/drivers/acpi/numa/Kconfig b/drivers/acpi/numa/Kconfig
> index 39b1f34c21dfd7a8..849c2bd820b93e90 100644
> --- a/drivers/acpi/numa/Kconfig
> +++ b/drivers/acpi/numa/Kconfig
> @@ -2,8 +2,8 @@
> config ACPI_NUMA
> bool "NUMA support"
> depends on NUMA
> - depends on (X86 || IA64 || ARM64 || LOONGARCH)
> - default y if IA64 || ARM64
> + depends on (X86 || ARM64 || LOONGARCH)
> + default y if ARM64
>
> config ACPI_HMAT
> bool "ACPI Heterogeneous Memory Attribute Table Support"
> diff --git a/drivers/acpi/osl.c b/drivers/acpi/osl.c
> index 3269a888fb7a97a3..23bcb6d5cfeeb082 100644
> --- a/drivers/acpi/osl.c
> +++ b/drivers/acpi/osl.c
> @@ -276,7 +276,7 @@ acpi_map_lookup_virt(void __iomem *virt, acpi_size size)
> return NULL;
> }
>
> -#if defined(CONFIG_IA64) || defined(CONFIG_ARM64)
> +#if defined(CONFIG_ARM64)
> /* ioremap will take care of cache attributes */
> #define should_use_kmap(pfn) 0
> #else
> diff --git a/drivers/char/Kconfig b/drivers/char/Kconfig
> index 30fe9848dac1c1dc..02189b4756d01937 100644
> --- a/drivers/char/Kconfig
> +++ b/drivers/char/Kconfig
> @@ -349,7 +349,7 @@ config DEVPORT
> device is similar to /dev/mem, but for I/O ports.
>
> config HPET
> - bool "HPET - High Precision Event Timer" if (X86 || IA64)
> + bool "HPET - High Precision Event Timer" if X86
> default n
> depends on ACPI
> help
> @@ -378,7 +378,7 @@ config HPET_MMAP_DEFAULT
>
> config HANGCHECK_TIMER
> tristate "Hangcheck timer"
> - depends on X86 || IA64 || PPC64 || S390
> + depends on X86 || PPC64 || S390
> help
> The hangcheck-timer module detects when the system has gone
> out to lunch past a certain margin. It can reboot the system
> diff --git a/drivers/char/Makefile b/drivers/char/Makefile
> index 1b35d1724565ebfd..9f492f8a13acf71a 100644
> --- a/drivers/char/Makefile
> +++ b/drivers/char/Makefile
> @@ -8,7 +8,6 @@ obj-$(CONFIG_TTY_PRINTK) += ttyprintk.o
> obj-y += misc.o
> obj-$(CONFIG_ATARI_DSP56K) += dsp56k.o
> obj-$(CONFIG_VIRTIO_CONSOLE) += virtio_console.o
> -obj-$(CONFIG_MSPEC) += mspec.o
> obj-$(CONFIG_UV_MMTIMER) += uv_mmtimer.o
> obj-$(CONFIG_IBM_BSR) += bsr.o
>
> diff --git a/drivers/char/agp/Kconfig b/drivers/char/agp/Kconfig
> index 4f501e4842ab391d..c47eb7bf06d46b58 100644
> --- a/drivers/char/agp/Kconfig
> +++ b/drivers/char/agp/Kconfig
> @@ -1,7 +1,7 @@
> # SPDX-License-Identifier: GPL-2.0
> menuconfig AGP
> tristate "/dev/agpgart (AGP Support)"
> - depends on ALPHA || IA64 || PARISC || PPC || X86
> + depends on ALPHA || PARISC || PPC || X86
> depends on PCI
> help
> AGP (Accelerated Graphics Port) is a bus system mainly used to
> @@ -109,20 +109,6 @@ config AGP_VIA
> This option gives you AGP support for the GLX component of
> X on VIA MVP3/Apollo Pro chipsets.
>
> -config AGP_I460
> - tristate "Intel 460GX chipset support"
> - depends on AGP && IA64
> - help
> - This option gives you AGP GART support for the Intel 460GX chipset
> - for IA64 processors.
> -
> -config AGP_HP_ZX1
> - tristate "HP ZX1 chipset AGP support"
> - depends on AGP && IA64
> - help
> - This option gives you AGP GART support for the HP ZX1 chipset
> - for IA64 processors.
> -
> config AGP_PARISC
> tristate "HP Quicksilver AGP support"
> depends on AGP && PARISC && 64BIT && IOMMU_SBA
> diff --git a/drivers/char/agp/Makefile b/drivers/char/agp/Makefile
> index 90ed8c789e4824fb..25834557e486538c 100644
> --- a/drivers/char/agp/Makefile
> +++ b/drivers/char/agp/Makefile
> @@ -14,9 +14,7 @@ obj-$(CONFIG_AGP_AMD) += amd-k7-agp.o
> obj-$(CONFIG_AGP_AMD64) += amd64-agp.o
> obj-$(CONFIG_AGP_ALPHA_CORE) += alpha-agp.o
> obj-$(CONFIG_AGP_EFFICEON) += efficeon-agp.o
> -obj-$(CONFIG_AGP_HP_ZX1) += hp-agp.o
> obj-$(CONFIG_AGP_PARISC) += parisc-agp.o
> -obj-$(CONFIG_AGP_I460) += i460-agp.o
> obj-$(CONFIG_AGP_INTEL) += intel-agp.o
> obj-$(CONFIG_INTEL_GTT) += intel-gtt.o
> obj-$(CONFIG_AGP_NVIDIA) += nvidia-agp.o
> diff --git a/drivers/char/agp/hp-agp.c b/drivers/char/agp/hp-agp.c
> deleted file mode 100644
> index 84d9adbb62f6a7bb..0000000000000000
> diff --git a/drivers/char/agp/i460-agp.c b/drivers/char/agp/i460-agp.c
> deleted file mode 100644
> index 15b240ea4848f1b8..0000000000000000
> diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
> index ee71376f174b70db..3b2159416e624a6a 100644
> --- a/drivers/char/hpet.c
> +++ b/drivers/char/hpet.c
> @@ -64,25 +64,6 @@
> static DEFINE_MUTEX(hpet_mutex); /* replaces BKL */
> static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
>
> -/* This clocksource driver currently only works on ia64 */
> -#ifdef CONFIG_IA64
> -static void __iomem *hpet_mctr;
> -
> -static u64 read_hpet(struct clocksource *cs)
> -{
> - return (u64)read_counter((void __iomem *)hpet_mctr);
> -}
> -
> -static struct clocksource clocksource_hpet = {
> - .name = "hpet",
> - .rating = 250,
> - .read = read_hpet,
> - .mask = CLOCKSOURCE_MASK(64),
> - .flags = CLOCK_SOURCE_IS_CONTINUOUS,
> -};
> -static struct clocksource *hpet_clocksource;
> -#endif
> -
> /* A lock for concurrent access by app and isr hpet activity. */
> static DEFINE_SPINLOCK(hpet_lock);
>
> @@ -907,17 +888,6 @@ int hpet_alloc(struct hpet_data *hdp)
>
> hpetp->hp_delta = hpet_calibrate(hpetp);
>
> -/* This clocksource driver currently only works on ia64 */
> -#ifdef CONFIG_IA64
> - if (!hpet_clocksource) {
> - hpet_mctr = (void __iomem *)&hpetp->hp_hpet->hpet_mc;
> - clocksource_hpet.archdata.fsys_mmio = hpet_mctr;
> - clocksource_register_hz(&clocksource_hpet, hpetp->hp_tick_freq);
> - hpetp->hp_clocksource = &clocksource_hpet;
> - hpet_clocksource = &clocksource_hpet;
> - }
> -#endif
> -
> return 0;
> }
>
> diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
> index 3da8e85f8aae03c7..aa59b5c24c44c8df 100644
> --- a/drivers/char/hw_random/Kconfig
> +++ b/drivers/char/hw_random/Kconfig
> @@ -37,7 +37,7 @@ config HW_RANDOM_TIMERIOMEM
>
> config HW_RANDOM_INTEL
> tristate "Intel HW Random Number Generator support"
> - depends on (X86 || IA64) && PCI
> + depends on X86 && PCI
> default HW_RANDOM
> help
> This driver provides kernel-side support for the Random Number
> diff --git a/drivers/char/mem.c b/drivers/char/mem.c
> index 83bf2a4dcb57ed84..efd29fb5417e1fd3 100644
> --- a/drivers/char/mem.c
> +++ b/drivers/char/mem.c
> @@ -31,10 +31,6 @@
> #include <linux/uaccess.h>
> #include <linux/security.h>
>
> -#ifdef CONFIG_IA64
> -# include <linux/efi.h>
> -#endif
> -
> #define DEVMEM_MINOR 1
> #define DEVPORT_MINOR 4
>
> @@ -284,13 +280,6 @@ int __weak phys_mem_access_prot_allowed(struct file *file,
> #ifdef pgprot_noncached
> static int uncached_access(struct file *file, phys_addr_t addr)
> {
> -#if defined(CONFIG_IA64)
> - /*
> - * On ia64, we ignore O_DSYNC because we cannot tolerate memory
> - * attribute aliases.
> - */
> - return !(efi_mem_attributes(addr) & EFI_MEMORY_WB);
> -#else
> /*
> * Accessing memory above the top the kernel knows about or through a
> * file pointer
> @@ -299,7 +288,6 @@ static int uncached_access(struct file *file, phys_addr_t addr)
> if (file->f_flags & O_DSYNC)
> return 1;
> return addr >= __pa(high_memory);
> -#endif
> }
> #endif
>
> diff --git a/drivers/char/mspec.c b/drivers/char/mspec.c
> deleted file mode 100644
> index f8231e2e84beccec..0000000000000000
> diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
> index 2a84fc63371e2ea2..faaf36c2e9a62bb7 100644
> --- a/drivers/cpufreq/Kconfig
> +++ b/drivers/cpufreq/Kconfig
> @@ -239,17 +239,6 @@ if PPC32 || PPC64
> source "drivers/cpufreq/Kconfig.powerpc"
> endif
>
> -if IA64
> -config IA64_ACPI_CPUFREQ
> - tristate "ACPI Processor P-States driver"
> - depends on ACPI_PROCESSOR
> - help
> - This driver adds a CPUFreq driver which utilizes the ACPI
> - Processor Performance States.
> -
> - If in doubt, say N.
> -endif
> -
> if MIPS
> config BMIPS_CPUFREQ
> tristate "BMIPS CPUfreq Driver"
> diff --git a/drivers/cpufreq/Makefile b/drivers/cpufreq/Makefile
> index 32a7029e25ed8103..12b5c8fd20eae57e 100644
> --- a/drivers/cpufreq/Makefile
> +++ b/drivers/cpufreq/Makefile
> @@ -109,7 +109,6 @@ obj-$(CONFIG_POWERNV_CPUFREQ) += powernv-cpufreq.o
> ##################################################################################
> # Other platform drivers
> obj-$(CONFIG_BMIPS_CPUFREQ) += bmips-cpufreq.o
> -obj-$(CONFIG_IA64_ACPI_CPUFREQ) += ia64-acpi-cpufreq.o
> obj-$(CONFIG_LOONGSON2_CPUFREQ) += loongson2_cpufreq.o
> obj-$(CONFIG_LOONGSON1_CPUFREQ) += loongson1-cpufreq.o
> obj-$(CONFIG_SH_CPU_FREQ) += sh-cpufreq.o
> diff --git a/drivers/cpufreq/ia64-acpi-cpufreq.c b/drivers/cpufreq/ia64-acpi-cpufreq.c
> deleted file mode 100644
> index c6bdc455517f856b..0000000000000000
> diff --git a/drivers/firmware/Kconfig b/drivers/firmware/Kconfig
> index b59e3041fd627585..a79579fea6f05ae5 100644
> --- a/drivers/firmware/Kconfig
> +++ b/drivers/firmware/Kconfig
> @@ -77,30 +77,6 @@ config FIRMWARE_MEMMAP
>
> See also Documentation/ABI/testing/sysfs-firmware-memmap.
>
> -config EFI_PCDP
> - bool "Console device selection via EFI PCDP or HCDP table"
> - depends on ACPI && EFI && IA64
> - default y if IA64
> - help
> - If your firmware supplies the PCDP table, and you want to
> - automatically use the primary console device it describes
> - as the Linux console, say Y here.
> -
> - If your firmware supplies the HCDP table, and you want to
> - use the first serial port it describes as the Linux console,
> - say Y here. If your EFI ConOut path contains only a UART
> - device, it will become the console automatically. Otherwise,
> - you must specify the "console=hcdp" kernel boot argument.
> -
> - Neither the PCDP nor the HCDP affects naming of serial devices,
> - so a serial console may be /dev/ttyS0, /dev/ttyS1, etc, depending
> - on how the driver discovers devices.
> -
> - You must also enable the appropriate drivers (serial, VGA, etc.)
> -
> - See DIG64_HCDPv20_042804.pdf available from
> - <http://www.dig64.org/specifications/>
> -
> config DMIID
> bool "Export DMI identification via sysfs to userspace"
> depends on DMI
> diff --git a/drivers/firmware/Makefile b/drivers/firmware/Makefile
> index 28fcddcd688fc2fd..1d1eb671d805d099 100644
> --- a/drivers/firmware/Makefile
> +++ b/drivers/firmware/Makefile
> @@ -8,7 +8,6 @@ obj-$(CONFIG_ARM_SDE_INTERFACE) += arm_sdei.o
> obj-$(CONFIG_DMI) += dmi_scan.o
> obj-$(CONFIG_DMI_SYSFS) += dmi-sysfs.o
> obj-$(CONFIG_EDD) += edd.o
> -obj-$(CONFIG_EFI_PCDP) += pcdp.o
> obj-$(CONFIG_DMIID) += dmi-id.o
> obj-$(CONFIG_INTEL_STRATIX10_SERVICE) += stratix10-svc.o
> obj-$(CONFIG_INTEL_STRATIX10_RSU) += stratix10-rsu.o
> diff --git a/drivers/firmware/efi/Kconfig b/drivers/firmware/efi/Kconfig
> index 043ca31c114ebf2a..923b07690cbf0061 100644
> --- a/drivers/firmware/efi/Kconfig
> +++ b/drivers/firmware/efi/Kconfig
> @@ -4,7 +4,7 @@ menu "EFI (Extensible Firmware Interface) Support"
>
> config EFI_ESRT
> bool
> - depends on EFI && !IA64
> + depends on EFI
> default y
>
> config EFI_VARS_PSTORE
> @@ -123,7 +123,7 @@ config EFI_BOOTLOADER_CONTROL
>
> config EFI_CAPSULE_LOADER
> tristate "EFI capsule loader"
> - depends on EFI && !IA64
> + depends on EFI
> help
> This option exposes a loader interface "/dev/efi_capsule_loader" for
> users to load EFI capsules. This driver requires working runtime
> @@ -224,7 +224,7 @@ config EFI_DISABLE_PCI_DMA
>
> config EFI_EARLYCON
> def_bool y
> - depends on SERIAL_EARLYCON && !ARM && !IA64
> + depends on SERIAL_EARLYCON && !ARM
> select FONT_SUPPORT
> select ARCH_USE_MEMREMAP_PROT
>
> diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
> index 1e0b016fdc2b1217..b30d5c3e03a9e7a4 100644
> --- a/drivers/firmware/efi/efi.c
> +++ b/drivers/firmware/efi/efi.c
> @@ -144,7 +144,7 @@ static ssize_t systab_show(struct kobject *kobj,
> if (efi.smbios != EFI_INVALID_TABLE_ADDR)
> str += sprintf(str, "SMBIOS=0x%lx\n", efi.smbios);
>
> - if (IS_ENABLED(CONFIG_IA64) || IS_ENABLED(CONFIG_X86))
> + if (IS_ENABLED(CONFIG_X86))
> str = efi_systab_show_arch(str);
>
> return str - buf;
> @@ -737,7 +737,6 @@ int __init efi_systab_check_header(const efi_table_hdr_t *systab_hdr,
> return 0;
> }
>
> -#ifndef CONFIG_IA64
> static const efi_char16_t *__init map_fw_vendor(unsigned long fw_vendor,
> size_t size)
> {
> @@ -753,10 +752,6 @@ static void __init unmap_fw_vendor(const void *fw_vendor, size_t size)
> {
> early_memunmap((void *)fw_vendor, size);
> }
> -#else
> -#define map_fw_vendor(p, s) __va(p)
> -#define unmap_fw_vendor(v, s)
> -#endif
>
> void __init efi_systab_report_header(const efi_table_hdr_t *systab_hdr,
> unsigned long fw_vendor)
> @@ -853,11 +848,6 @@ char * __init efi_md_typeattr_format(char *buf, size_t size,
> return buf;
> }
>
> -/*
> - * IA64 has a funky EFI memory map that doesn't work the same way as
> - * other architectures.
> - */
> -#ifndef CONFIG_IA64
> /*
> * efi_mem_attributes - lookup memmap attributes for physical address
> * @phys_addr: the physical address to lookup
> @@ -905,7 +895,6 @@ int efi_mem_type(unsigned long phys_addr)
> }
> return -EINVAL;
> }
> -#endif
>
> int efi_status_to_err(efi_status_t status)
> {
> diff --git a/drivers/firmware/pcdp.c b/drivers/firmware/pcdp.c
> deleted file mode 100644
> index 715a45442d1cfe64..0000000000000000
> diff --git a/drivers/firmware/pcdp.h b/drivers/firmware/pcdp.h
> deleted file mode 100644
> index e02540571c524c40..0000000000000000
> diff --git a/drivers/gpu/drm/drm_ioc32.c b/drivers/gpu/drm/drm_ioc32.c
> index 5d82891c32223e4d..4414d99e02ac658b 100644
> --- a/drivers/gpu/drm/drm_ioc32.c
> +++ b/drivers/gpu/drm/drm_ioc32.c
> @@ -945,11 +945,11 @@ static struct {
> DRM_IOCTL32_DEF(DRM_IOCTL_SG_ALLOC, compat_drm_sg_alloc),
> DRM_IOCTL32_DEF(DRM_IOCTL_SG_FREE, compat_drm_sg_free),
> #endif
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64)
> +#if defined(CONFIG_X86)
> DRM_IOCTL32_DEF(DRM_IOCTL_UPDATE_DRAW, compat_drm_update_draw),
> #endif
> DRM_IOCTL32_DEF(DRM_IOCTL_WAIT_VBLANK, compat_drm_wait_vblank),
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64)
> +#if defined(CONFIG_X86)
> DRM_IOCTL32_DEF(DRM_IOCTL_MODE_ADDFB2, compat_drm_mode_addfb2),
> #endif
> };
> diff --git a/drivers/input/serio/i8042.h b/drivers/input/serio/i8042.h
> index adb5173372d3ee6d..5f61672d55b73aaa 100644
> --- a/drivers/input/serio/i8042.h
> +++ b/drivers/input/serio/i8042.h
> @@ -19,7 +19,7 @@
> #include "i8042-snirm.h"
> #elif defined(CONFIG_SPARC)
> #include "i8042-sparcio.h"
> -#elif defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
> +#elif defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
> #include "i8042-acpipnpio.h"
> #else
> #include "i8042-io.h"
> diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig
> index 79707685d54a4f8f..013683ad7ecc9319 100644
> --- a/drivers/iommu/Kconfig
> +++ b/drivers/iommu/Kconfig
> @@ -93,7 +93,7 @@ config IOMMU_DEBUGFS
> choice
> prompt "IOMMU default domain type"
> depends on IOMMU_API
> - default IOMMU_DEFAULT_DMA_LAZY if X86 || IA64
> + default IOMMU_DEFAULT_DMA_LAZY if X86
> default IOMMU_DEFAULT_DMA_STRICT
> help
> Choose the type of IOMMU domain used to manage DMA API usage by
> @@ -148,7 +148,7 @@ config OF_IOMMU
>
> # IOMMU-agnostic DMA-mapping layer
> config IOMMU_DMA
> - def_bool ARM64 || IA64 || X86
> + def_bool ARM64 || X86
> select DMA_OPS
> select IOMMU_API
> select IOMMU_IOVA
> diff --git a/drivers/iommu/intel/Kconfig b/drivers/iommu/intel/Kconfig
> index b7dff5092fd21c06..44205ffdcb5cc149 100644
> --- a/drivers/iommu/intel/Kconfig
> +++ b/drivers/iommu/intel/Kconfig
> @@ -11,7 +11,7 @@ config DMAR_DEBUG
>
> config INTEL_IOMMU
> bool "Support for Intel IOMMU using DMA Remapping Devices"
> - depends on PCI_MSI && ACPI && (X86 || IA64)
> + depends on PCI_MSI && ACPI && X86
> select DMA_OPS
> select IOMMU_API
> select IOMMU_IOVA
> diff --git a/drivers/media/cec/platform/Kconfig b/drivers/media/cec/platform/Kconfig
> index b672d3142eb795f4..ede81fe331b0de73 100644
> --- a/drivers/media/cec/platform/Kconfig
> +++ b/drivers/media/cec/platform/Kconfig
> @@ -99,7 +99,7 @@ config CEC_TEGRA
>
> config CEC_SECO
> tristate "SECO Boards HDMI CEC driver"
> - depends on (X86 || IA64) || COMPILE_TEST
> + depends on X86 || COMPILE_TEST
> depends on PCI && DMI
> select CEC_CORE
> select CEC_NOTIFIER
> diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
> index 9947b7892bd5af61..2573dd21d0aa77d4 100644
> --- a/drivers/misc/Kconfig
> +++ b/drivers/misc/Kconfig
> @@ -166,7 +166,7 @@ config ENCLOSURE_SERVICES
> config SGI_XP
> tristate "Support communication between SGI SSIs"
> depends on NET
> - depends on (IA64_SGI_UV || X86_UV) && SMP
> + depends on X86_UV && SMP
> depends on X86_64 || BROKEN
> select SGI_GRU if X86_64 && SMP
> help
> diff --git a/drivers/misc/sgi-gru/gru.h b/drivers/misc/sgi-gru/gru.h
> index 3ad76cd18b4bb41a..6ae045037219a339 100644
> --- a/drivers/misc/sgi-gru/gru.h
> +++ b/drivers/misc/sgi-gru/gru.h
> @@ -30,9 +30,7 @@
> /*
> * Size used to map GRU GSeg
> */
> -#if defined(CONFIG_IA64)
> -#define GRU_GSEG_PAGESIZE (256 * 1024UL)
> -#elif defined(CONFIG_X86_64)
> +#if defined(CONFIG_X86_64)
> #define GRU_GSEG_PAGESIZE (256 * 1024UL) /* ZZZ 2MB ??? */
> #else
> #error "Unsupported architecture"
> diff --git a/drivers/misc/sgi-gru/gru_instructions.h b/drivers/misc/sgi-gru/gru_instructions.h
> index 04d5170ac1497352..da5eb9edf9ecd6bd 100644
> --- a/drivers/misc/sgi-gru/gru_instructions.h
> +++ b/drivers/misc/sgi-gru/gru_instructions.h
> @@ -29,17 +29,7 @@ extern void gru_wait_abort_proc(void *cb);
> * Architecture dependent functions
> */
>
> -#if defined(CONFIG_IA64)
> -#include <linux/compiler.h>
> -#include <asm/intrinsics.h>
> -#define __flush_cache(p) ia64_fc((unsigned long)p)
> -/* Use volatile on IA64 to ensure ordering via st4.rel */
> -#define gru_ordered_store_ulong(p, v) \
> - do { \
> - barrier(); \
> - *((volatile unsigned long *)(p)) = v; /* force st.rel */ \
> - } while (0)
> -#elif defined(CONFIG_X86_64)
> +#if defined(CONFIG_X86_64)
> #include <asm/cacheflush.h>
> #define __flush_cache(p) clflush(p)
> #define gru_ordered_store_ulong(p, v) \
> diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
> index 7ffcfc0bb58723fe..ab731678b0428b1f 100644
> --- a/drivers/misc/sgi-gru/grufile.c
> +++ b/drivers/misc/sgi-gru/grufile.c
> @@ -337,72 +337,6 @@ static unsigned long gru_chiplet_cpu_to_mmr(int chiplet, int cpu, int *corep)
> return mmr;
> }
>
> -#ifdef CONFIG_IA64
> -
> -static int gru_irq_count[GRU_CHIPLETS_PER_BLADE];
> -
> -static void gru_noop(struct irq_data *d)
> -{
> -}
> -
> -static struct irq_chip gru_chip[GRU_CHIPLETS_PER_BLADE] = {
> - [0 ... GRU_CHIPLETS_PER_BLADE - 1] {
> - .irq_mask = gru_noop,
> - .irq_unmask = gru_noop,
> - .irq_ack = gru_noop
> - }
> -};
> -
> -static int gru_chiplet_setup_tlb_irq(int chiplet, char *irq_name,
> - irq_handler_t irq_handler, int cpu, int blade)
> -{
> - unsigned long mmr;
> - int irq = IRQ_GRU + chiplet;
> - int ret, core;
> -
> - mmr = gru_chiplet_cpu_to_mmr(chiplet, cpu, &core);
> - if (mmr == 0)
> - return 0;
> -
> - if (gru_irq_count[chiplet] == 0) {
> - gru_chip[chiplet].name = irq_name;
> - ret = irq_set_chip(irq, &gru_chip[chiplet]);
> - if (ret) {
> - printk(KERN_ERR "%s: set_irq_chip failed, errno=%d\n",
> - GRU_DRIVER_ID_STR, -ret);
> - return ret;
> - }
> -
> - ret = request_irq(irq, irq_handler, 0, irq_name, NULL);
> - if (ret) {
> - printk(KERN_ERR "%s: request_irq failed, errno=%d\n",
> - GRU_DRIVER_ID_STR, -ret);
> - return ret;
> - }
> - }
> - gru_irq_count[chiplet]++;
> -
> - return 0;
> -}
> -
> -static void gru_chiplet_teardown_tlb_irq(int chiplet, int cpu, int blade)
> -{
> - unsigned long mmr;
> - int core, irq = IRQ_GRU + chiplet;
> -
> - if (gru_irq_count[chiplet] == 0)
> - return;
> -
> - mmr = gru_chiplet_cpu_to_mmr(chiplet, cpu, &core);
> - if (mmr == 0)
> - return;
> -
> - if (--gru_irq_count[chiplet] == 0)
> - free_irq(irq, NULL);
> -}
> -
> -#elif defined CONFIG_X86_64
> -
> static int gru_chiplet_setup_tlb_irq(int chiplet, char *irq_name,
> irq_handler_t irq_handler, int cpu, int blade)
> {
> @@ -447,8 +381,6 @@ static void gru_chiplet_teardown_tlb_irq(int chiplet, int cpu, int blade)
> }
> }
>
> -#endif
> -
> static void gru_teardown_tlb_irqs(void)
> {
> int blade;
> @@ -514,12 +446,8 @@ static int __init gru_init(void)
> if (!gru_supported())
> return 0;
>
> -#if defined CONFIG_IA64
> - gru_start_paddr = 0xd000000000UL; /* ZZZZZZZZZZZZZZZZZZZ fixme */
> -#else
> gru_start_paddr = uv_read_local_mmr(UVH_RH_GAM_GRU_OVERLAY_CONFIG) &
> 0x7fffffffffffUL;
> -#endif
> gru_start_vaddr = __va(gru_start_paddr);
> gru_end_paddr = gru_start_paddr + GRU_MAX_BLADES * GRU_SIZE;
> printk(KERN_INFO "GRU space: 0x%lx - 0x%lx\n",
> diff --git a/drivers/misc/sgi-gru/gruhandles.c b/drivers/misc/sgi-gru/gruhandles.c
> index 1d75d5e540bc992b..695316a83b01044f 100644
> --- a/drivers/misc/sgi-gru/gruhandles.c
> +++ b/drivers/misc/sgi-gru/gruhandles.c
> @@ -11,16 +11,10 @@
> #include "grutables.h"
>
> /* 10 sec */
> -#ifdef CONFIG_IA64
> -#include <asm/processor.h>
> -#define GRU_OPERATION_TIMEOUT (((cycles_t) local_cpu_data->itc_freq)*10)
> -#define CLKS2NSEC(c) ((c) *1000000000 / local_cpu_data->itc_freq)
> -#else
> #include <linux/sync_core.h>
> #include <asm/tsc.h>
> #define GRU_OPERATION_TIMEOUT ((cycles_t) tsc_khz*10*1000)
> #define CLKS2NSEC(c) ((c) * 1000000 / tsc_khz)
> -#endif
>
> /* Extract the status field from a kernel handle */
> #define GET_MSEG_HANDLE_STATUS(h) (((*(unsigned long *)(h)) >> 16) & 3)
> diff --git a/drivers/misc/sgi-gru/grumain.c b/drivers/misc/sgi-gru/grumain.c
> index 4eb4b94551390791..0f5b09e290c89981 100644
> --- a/drivers/misc/sgi-gru/grumain.c
> +++ b/drivers/misc/sgi-gru/grumain.c
> @@ -41,16 +41,12 @@ struct device *grudev = &gru_device;
> */
> int gru_cpu_fault_map_id(void)
> {
> -#ifdef CONFIG_IA64
> - return uv_blade_processor_id() % GRU_NUM_TFM;
> -#else
> int cpu = smp_processor_id();
> int id, core;
>
> core = uv_cpu_core_number(cpu);
> id = core + UV_MAX_INT_CORES * uv_cpu_socket_number(cpu);
> return id;
> -#endif
> }
>
> /*--------- ASID Management -------------------------------------------
> diff --git a/drivers/misc/sgi-xp/xp.h b/drivers/misc/sgi-xp/xp.h
> index f1336f43d3bd13ee..3185711beb0780f2 100644
> --- a/drivers/misc/sgi-xp/xp.h
> +++ b/drivers/misc/sgi-xp/xp.h
> @@ -16,7 +16,7 @@
>
> #include <linux/mutex.h>
>
> -#if defined CONFIG_X86_UV || defined CONFIG_IA64_SGI_UV
> +#if defined CONFIG_X86_UV
> #include <asm/uv/uv.h>
> #endif
>
> diff --git a/drivers/misc/sgi-xp/xp_uv.c b/drivers/misc/sgi-xp/xp_uv.c
> index 19fc7076af274f74..3faa7eadf679e3c2 100644
> --- a/drivers/misc/sgi-xp/xp_uv.c
> +++ b/drivers/misc/sgi-xp/xp_uv.c
> @@ -18,8 +18,6 @@
> #include <asm/uv/uv_hub.h>
> #if defined CONFIG_X86_64
> #include <asm/uv/bios.h>
> -#elif defined CONFIG_IA64_SGI_UV
> -#include <asm/sn/sn_sal.h>
> #endif
> #include "../sgi-gru/grukservices.h"
> #include "xp.h"
> @@ -99,17 +97,6 @@ xp_expand_memprotect_uv(unsigned long phys_addr, unsigned long size)
> "UV_MEMPROT_ALLOW_RW) failed, ret=%d\n", ret);
> return xpBiosError;
> }
> -
> -#elif defined CONFIG_IA64_SGI_UV
> - u64 nasid_array;
> -
> - ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_1,
> - &nasid_array);
> - if (ret != 0) {
> - dev_err(xp, "sn_change_memprotect(,, "
> - "SN_MEMPROT_ACCESS_CLASS_1,) failed ret=%d\n", ret);
> - return xpSalError;
> - }
> #else
> #error not a supported configuration
> #endif
> @@ -129,17 +116,6 @@ xp_restrict_memprotect_uv(unsigned long phys_addr, unsigned long size)
> "UV_MEMPROT_RESTRICT_ACCESS) failed, ret=%d\n", ret);
> return xpBiosError;
> }
> -
> -#elif defined CONFIG_IA64_SGI_UV
> - u64 nasid_array;
> -
> - ret = sn_change_memprotect(phys_addr, size, SN_MEMPROT_ACCESS_CLASS_0,
> - &nasid_array);
> - if (ret != 0) {
> - dev_err(xp, "sn_change_memprotect(,, "
> - "SN_MEMPROT_ACCESS_CLASS_0,) failed ret=%d\n", ret);
> - return xpSalError;
> - }
> #else
> #error not a supported configuration
> #endif
> diff --git a/drivers/misc/sgi-xp/xpc_main.c b/drivers/misc/sgi-xp/xpc_main.c
> index b2c3c22fc13c1361..ea540b03a0f6e9b8 100644
> --- a/drivers/misc/sgi-xp/xpc_main.c
> +++ b/drivers/misc/sgi-xp/xpc_main.c
> @@ -1162,36 +1162,6 @@ xpc_die_deactivate(void)
> static int
> xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
> {
> -#ifdef CONFIG_IA64 /* !!! temporary kludge */
> - switch (event) {
> - case DIE_MACHINE_RESTART:
> - case DIE_MACHINE_HALT:
> - xpc_die_deactivate();
> - break;
> -
> - case DIE_KDEBUG_ENTER:
> - /* Should lack of heartbeat be ignored by other partitions? */
> - if (!xpc_kdebug_ignore)
> - break;
> -
> - fallthrough;
> - case DIE_MCA_MONARCH_ENTER:
> - case DIE_INIT_MONARCH_ENTER:
> - xpc_arch_ops.offline_heartbeat();
> - break;
> -
> - case DIE_KDEBUG_LEAVE:
> - /* Is lack of heartbeat being ignored by other partitions? */
> - if (!xpc_kdebug_ignore)
> - break;
> -
> - fallthrough;
> - case DIE_MCA_MONARCH_LEAVE:
> - case DIE_INIT_MONARCH_LEAVE:
> - xpc_arch_ops.online_heartbeat();
> - break;
> - }
> -#else
> struct die_args *die_args = _die_args;
>
> switch (event) {
> @@ -1213,7 +1183,6 @@ xpc_system_die(struct notifier_block *nb, unsigned long event, void *_die_args)
> default:
> xpc_die_deactivate();
> }
> -#endif
>
> return NOTIFY_DONE;
> }
> diff --git a/drivers/misc/sgi-xp/xpc_uv.c b/drivers/misc/sgi-xp/xpc_uv.c
> index fff522d347e33f31..2f03a7080d965235 100644
> --- a/drivers/misc/sgi-xp/xpc_uv.c
> +++ b/drivers/misc/sgi-xp/xpc_uv.c
> @@ -24,34 +24,12 @@
> #include <linux/slab.h>
> #include <linux/numa.h>
> #include <asm/uv/uv_hub.h>
> -#if defined CONFIG_X86_64
> #include <asm/uv/bios.h>
> #include <asm/uv/uv_irq.h>
> -#elif defined CONFIG_IA64_SGI_UV
> -#include <asm/sn/intr.h>
> -#include <asm/sn/sn_sal.h>
> -#endif
> #include "../sgi-gru/gru.h"
> #include "../sgi-gru/grukservices.h"
> #include "xpc.h"
>
> -#if defined CONFIG_IA64_SGI_UV
> -struct uv_IO_APIC_route_entry {
> - __u64 vector : 8,
> - delivery_mode : 3,
> - dest_mode : 1,
> - delivery_status : 1,
> - polarity : 1,
> - __reserved_1 : 1,
> - trigger : 1,
> - mask : 1,
> - __reserved_2 : 15,
> - dest : 32;
> -};
> -
> -#define sn_partition_id 0
> -#endif
> -
> static struct xpc_heartbeat_uv *xpc_heartbeat_uv;
>
> #define XPC_ACTIVATE_MSG_SIZE_UV (1 * GRU_CACHE_LINE_BYTES)
> @@ -113,7 +91,6 @@ xpc_get_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq, int cpu, char *irq_name)
> {
> int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
>
> -#if defined CONFIG_X86_64
> mq->irq = uv_setup_irq(irq_name, cpu, mq->mmr_blade, mq->mmr_offset,
> UV_AFFINITY_CPU);
> if (mq->irq < 0)
> @@ -121,40 +98,13 @@ xpc_get_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq, int cpu, char *irq_name)
>
> mq->mmr_value = uv_read_global_mmr64(mmr_pnode, mq->mmr_offset);
>
> -#elif defined CONFIG_IA64_SGI_UV
> - if (strcmp(irq_name, XPC_ACTIVATE_IRQ_NAME) == 0)
> - mq->irq = SGI_XPC_ACTIVATE;
> - else if (strcmp(irq_name, XPC_NOTIFY_IRQ_NAME) == 0)
> - mq->irq = SGI_XPC_NOTIFY;
> - else
> - return -EINVAL;
> -
> - mq->mmr_value = (unsigned long)cpu_physical_id(cpu) << 32 | mq->irq;
> - uv_write_global_mmr64(mmr_pnode, mq->mmr_offset, mq->mmr_value);
> -#else
> - #error not a supported configuration
> -#endif
> -
> return 0;
> }
>
> static void
> xpc_release_gru_mq_irq_uv(struct xpc_gru_mq_uv *mq)
> {
> -#if defined CONFIG_X86_64
> uv_teardown_irq(mq->irq);
> -
> -#elif defined CONFIG_IA64_SGI_UV
> - int mmr_pnode;
> - unsigned long mmr_value;
> -
> - mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
> - mmr_value = 1UL << 16;
> -
> - uv_write_global_mmr64(mmr_pnode, mq->mmr_offset, mmr_value);
> -#else
> - #error not a supported configuration
> -#endif
> }
>
> static int
> @@ -162,17 +112,6 @@ xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq)
> {
> int ret;
>
> -#if defined CONFIG_IA64_SGI_UV
> - int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
> -
> - ret = sn_mq_watchlist_alloc(mmr_pnode, (void *)uv_gpa(mq->address),
> - mq->order, &mq->mmr_offset);
> - if (ret < 0) {
> - dev_err(xpc_part, "sn_mq_watchlist_alloc() failed, ret=%d\n",
> - ret);
> - return -EBUSY;
> - }
> -#elif defined CONFIG_X86_64
> ret = uv_bios_mq_watchlist_alloc(uv_gpa(mq->address),
> mq->order, &mq->mmr_offset);
> if (ret < 0) {
> @@ -180,9 +119,6 @@ xpc_gru_mq_watchlist_alloc_uv(struct xpc_gru_mq_uv *mq)
> "ret=%d\n", ret);
> return ret;
> }
> -#else
> - #error not a supported configuration
> -#endif
>
> mq->watchlist_num = ret;
> return 0;
> @@ -194,15 +130,8 @@ xpc_gru_mq_watchlist_free_uv(struct xpc_gru_mq_uv *mq)
> int ret;
> int mmr_pnode = uv_blade_to_pnode(mq->mmr_blade);
>
> -#if defined CONFIG_X86_64
> ret = uv_bios_mq_watchlist_free(mmr_pnode, mq->watchlist_num);
> BUG_ON(ret != BIOS_STATUS_SUCCESS);
> -#elif defined CONFIG_IA64_SGI_UV
> - ret = sn_mq_watchlist_free(mmr_pnode, mq->watchlist_num);
> - BUG_ON(ret != SALRET_OK);
> -#else
> - #error not a supported configuration
> -#endif
> }
>
> static struct xpc_gru_mq_uv *
> @@ -786,7 +715,6 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa,
> s64 status;
> enum xp_retval ret;
>
> -#if defined CONFIG_X86_64
> status = uv_bios_reserved_page_pa((u64)buf, cookie, (u64 *)rp_pa,
> (u64 *)len);
> if (status == BIOS_STATUS_SUCCESS)
> @@ -796,19 +724,6 @@ xpc_get_partition_rsvd_page_pa_uv(void *buf, u64 *cookie, unsigned long *rp_pa,
> else
> ret = xpBiosError;
>
> -#elif defined CONFIG_IA64_SGI_UV
> - status = sn_partition_reserved_page_pa((u64)buf, cookie, rp_pa, len);
> - if (status == SALRET_OK)
> - ret = xpSuccess;
> - else if (status == SALRET_MORE_PASSES)
> - ret = xpNeedMoreInfo;
> - else
> - ret = xpSalError;
> -
> -#else
> - #error not a supported configuration
> -#endif
> -
> return ret;
> }
>
> diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
> index 58747292521d8199..f219878c4b79655c 100644
> --- a/drivers/net/ethernet/broadcom/tg3.c
> +++ b/drivers/net/ethernet/broadcom/tg3.c
> @@ -17001,7 +17001,7 @@ static u32 tg3_calc_dma_bndry(struct tg3 *tp, u32 val)
> !tg3_flag(tp, PCI_EXPRESS))
> goto out;
>
> -#if defined(CONFIG_PPC64) || defined(CONFIG_IA64) || defined(CONFIG_PARISC)
> +#if defined(CONFIG_PPC64) || defined(CONFIG_PARISC)
> goal = BOUNDARY_MULTI_CACHELINE;
> #else
> #if defined(CONFIG_SPARC64) || defined(CONFIG_ALPHA)
> diff --git a/drivers/net/ethernet/brocade/bna/bnad.h b/drivers/net/ethernet/brocade/bna/bnad.h
> index 627a93ce38ab07dd..10b1e534030e628d 100644
> --- a/drivers/net/ethernet/brocade/bna/bnad.h
> +++ b/drivers/net/ethernet/brocade/bna/bnad.h
> @@ -19,7 +19,6 @@
> #include <linux/firmware.h>
> #include <linux/if_vlan.h>
>
> -/* Fix for IA64 */
> #include <asm/checksum.h>
> #include <net/ip6_checksum.h>
>
> diff --git a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
> index de8d54b23f738523..2e1b2d9c0f54cbfc 100644
> --- a/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
> +++ b/drivers/net/ethernet/qlogic/netxen/netxen_nic_main.c
> @@ -234,9 +234,7 @@ static int nx_set_dma_mask(struct netxen_adapter *adapter)
> cmask = DMA_BIT_MASK(32);
>
> if (NX_IS_REVISION_P2(adapter->ahw.revision_id)) {
> -#ifndef CONFIG_IA64
> mask = DMA_BIT_MASK(35);
> -#endif
> } else {
> mask = DMA_BIT_MASK(39);
> cmask = mask;
> diff --git a/drivers/pci/vgaarb.c b/drivers/pci/vgaarb.c
> index f80b6ec88dc301e0..a9c2aa0ea5751dc7 100644
> --- a/drivers/pci/vgaarb.c
> +++ b/drivers/pci/vgaarb.c
> @@ -545,7 +545,7 @@ EXPORT_SYMBOL(vga_put);
>
> static bool vga_is_firmware_default(struct pci_dev *pdev)
> {
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64)
> +#if defined(CONFIG_X86)
> u64 base = screen_info.lfb_base;
> u64 size = screen_info.lfb_size;
> u64 limit;
> diff --git a/drivers/tty/serial/8250/Kconfig b/drivers/tty/serial/8250/Kconfig
> index b0f62345bc846dcb..fc4acb9e323b6922 100644
> --- a/drivers/tty/serial/8250/Kconfig
> +++ b/drivers/tty/serial/8250/Kconfig
> @@ -216,7 +216,7 @@ config SERIAL_8250_EXTENDED
>
> config SERIAL_8250_MANY_PORTS
> bool "Support more than 4 legacy serial ports"
> - depends on SERIAL_8250_EXTENDED && !IA64
> + depends on SERIAL_8250_EXTENDED
> help
> Say Y here if you have dumb serial boards other than the four
> standard COM 1/2/3/4 ports. This may happen if you have an AST
> diff --git a/drivers/tty/vt/keyboard.c b/drivers/tty/vt/keyboard.c
> index be8313cdbac360ac..218dae88ad575a0e 100644
> --- a/drivers/tty/vt/keyboard.c
> +++ b/drivers/tty/vt/keyboard.c
> @@ -1273,7 +1273,7 @@ static void kbd_bh(struct tasklet_struct *unused)
> }
> }
>
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_ALPHA) ||\
> +#if defined(CONFIG_X86) || defined(CONFIG_ALPHA) ||\
> defined(CONFIG_MIPS) || defined(CONFIG_PPC) || defined(CONFIG_SPARC) ||\
> defined(CONFIG_PARISC) || defined(CONFIG_SUPERH) ||\
> (defined(CONFIG_ARM) && defined(CONFIG_KEYBOARD_ATKBD) && !defined(CONFIG_ARCH_RPC))
> diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
> index b2bed599e6c6ea1c..834a2a615786d168 100644
> --- a/drivers/video/fbdev/Kconfig
> +++ b/drivers/video/fbdev/Kconfig
> @@ -641,7 +641,7 @@ config FB_VESA
>
> config FB_EFI
> bool "EFI-based Framebuffer Support"
> - depends on (FB = y) && !IA64 && EFI
> + depends on (FB = y) && EFI
> select APERTURE_HELPERS
> select DRM_PANEL_ORIENTATION_QUIRKS
> select FB_CFB_FILLRECT
> diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
> index 0bc40b763b065210..fe51fb2bd4947c42 100644
> --- a/drivers/watchdog/Kconfig
> +++ b/drivers/watchdog/Kconfig
> @@ -1268,7 +1268,7 @@ config INTEL_MID_WATCHDOG
>
> config ITCO_WDT
> tristate "Intel TCO Timer/Watchdog"
> - depends on (X86 || IA64) && PCI
> + depends on X86 && PCI
> select WATCHDOG_CORE
> depends on I2C || I2C=n
> depends on MFD_INTEL_PMC_BXT || !MFD_INTEL_PMC_BXT
> diff --git a/fs/Kconfig b/fs/Kconfig
> index 2685a4d0d353188b..11f5dd246fce4a68 100644
> --- a/fs/Kconfig
> +++ b/fs/Kconfig
> @@ -234,7 +234,7 @@ config ARCH_SUPPORTS_HUGETLBFS
>
> config HUGETLBFS
> bool "HugeTLB file system support"
> - depends on X86 || IA64 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
> + depends on X86 || SPARC64 || ARCH_SUPPORTS_HUGETLBFS || BROKEN
> depends on (SYSFS || SYSCTL)
> help
> hugetlbfs is a filesystem backing for HugeTLB pages, based on
> diff --git a/fs/afs/main.c b/fs/afs/main.c
> index eae288c8d40a3b28..6425c81d07deac4d 100644
> --- a/fs/afs/main.c
> +++ b/fs/afs/main.c
> @@ -41,8 +41,6 @@ const char afs_init_sysname[] = "arm_linux26";
> const char afs_init_sysname[] = "aarch64_linux26";
> #elif defined(CONFIG_X86_32)
> const char afs_init_sysname[] = "i386_linux26";
> -#elif defined(CONFIG_IA64)
> -const char afs_init_sysname[] = "ia64_linux26";
> #elif defined(CONFIG_PPC64)
> const char afs_init_sysname[] = "ppc64_linux26";
> #elif defined(CONFIG_PPC32)
> diff --git a/fs/xfs/xfs_ioctl32.h b/fs/xfs/xfs_ioctl32.h
> index c14852362fceab4f..052d0e888c273a3a 100644
> --- a/fs/xfs/xfs_ioctl32.h
> +++ b/fs/xfs/xfs_ioctl32.h
> @@ -22,7 +22,7 @@
> /*
> * On intel, even if sizes match, alignment and/or padding may differ.
> */
> -#if defined(CONFIG_IA64) || defined(CONFIG_X86_64)
> +#if defined(CONFIG_X86_64)
> #define BROKEN_X86_ALIGNMENT
> #define __compat_packed __attribute__((packed))
> #else
> diff --git a/include/linux/acpi.h b/include/linux/acpi.h
> index 5e6a876e17ba0794..78753513bc5cb9a9 100644
> --- a/include/linux/acpi.h
> +++ b/include/linux/acpi.h
> @@ -270,7 +270,7 @@ void acpi_table_print_madt_entry (struct acpi_subtable_header *madt);
> /* the following numa functions are architecture-dependent */
> void acpi_numa_slit_init (struct acpi_table_slit *slit);
>
> -#if defined(CONFIG_X86) || defined(CONFIG_IA64) || defined(CONFIG_LOONGARCH)
> +#if defined(CONFIG_X86) || defined(CONFIG_LOONGARCH)
> void acpi_numa_processor_affinity_init (struct acpi_srat_cpu_affinity *pa);
> #else
> static inline void
> @@ -1090,15 +1090,8 @@ struct acpi_s2idle_dev_ops {
> int acpi_register_lps0_dev(struct acpi_s2idle_dev_ops *arg);
> void acpi_unregister_lps0_dev(struct acpi_s2idle_dev_ops *arg);
> #endif /* CONFIG_X86 */
> -#ifndef CONFIG_IA64
> void arch_reserve_mem_area(acpi_physical_address addr, size_t size);
> #else
> -static inline void arch_reserve_mem_area(acpi_physical_address addr,
> - size_t size)
> -{
> -}
> -#endif /* CONFIG_X86 */
> -#else
> #define acpi_os_set_prepare_sleep(func, pm1a_ctrl, pm1b_ctrl) do { } while (0)
> #endif
>
> diff --git a/include/linux/efi.h b/include/linux/efi.h
> index 98598bd1d2fa5208..bdc77cc74b1accf4 100644
> --- a/include/linux/efi.h
> +++ b/include/linux/efi.h
> @@ -356,13 +356,10 @@ void efi_native_runtime_setup(void);
> * where the UEFI SPEC breaks the line.
> */
> #define NULL_GUID EFI_GUID(0x00000000, 0x0000, 0x0000, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00)
> -#define MPS_TABLE_GUID EFI_GUID(0xeb9d2d2f, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
> #define ACPI_TABLE_GUID EFI_GUID(0xeb9d2d30, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
> #define ACPI_20_TABLE_GUID EFI_GUID(0x8868e871, 0xe4f1, 0x11d3, 0xbc, 0x22, 0x00, 0x80, 0xc7, 0x3c, 0x88, 0x81)
> #define SMBIOS_TABLE_GUID EFI_GUID(0xeb9d2d31, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
> #define SMBIOS3_TABLE_GUID EFI_GUID(0xf2fd1544, 0x9794, 0x4a2c, 0x99, 0x2e, 0xe5, 0xbb, 0xcf, 0x20, 0xe3, 0x94)
> -#define SAL_SYSTEM_TABLE_GUID EFI_GUID(0xeb9d2d32, 0x2d88, 0x11d3, 0x9a, 0x16, 0x00, 0x90, 0x27, 0x3f, 0xc1, 0x4d)
> -#define HCDP_TABLE_GUID EFI_GUID(0xf951938d, 0x620b, 0x42ef, 0x82, 0x79, 0xa8, 0x4b, 0x79, 0x61, 0x78, 0x98)
> #define UGA_IO_PROTOCOL_GUID EFI_GUID(0x61a4d49e, 0x6f68, 0x4f1b, 0xb9, 0x22, 0xa8, 0x6e, 0xed, 0x0b, 0x07, 0xa2)
> #define EFI_GLOBAL_VARIABLE_GUID EFI_GUID(0x8be4df61, 0x93ca, 0x11d2, 0xaa, 0x0d, 0x00, 0xe0, 0x98, 0x03, 0x2b, 0x8c)
> #define UV_SYSTEM_TABLE_GUID EFI_GUID(0x3b13a7d4, 0x633e, 0x11dd, 0x93, 0xec, 0xda, 0x25, 0x56, 0xd8, 0x95, 0x93)
> @@ -831,10 +828,6 @@ static inline int efi_range_is_wc(unsigned long start, unsigned long len)
> return 1;
> }
>
> -#ifdef CONFIG_EFI_PCDP
> -extern int __init efi_setup_pcdp_console(char *);
> -#endif
> -
> /*
> * We play games with efi_enabled so that the compiler will, if
> * possible, remove EFI-related code altogether.
> diff --git a/include/linux/mm.h b/include/linux/mm.h
> index f13f20258ce9893c..97e4b34381a38625 100644
> --- a/include/linux/mm.h
> +++ b/include/linux/mm.h
> @@ -347,8 +347,6 @@ extern unsigned int kobjsize(const void *objp);
> # define VM_SAO VM_ARCH_1 /* Strong Access Ordering (powerpc) */
> #elif defined(CONFIG_PARISC)
> # define VM_GROWSUP VM_ARCH_1
> -#elif defined(CONFIG_IA64)
> -# define VM_GROWSUP VM_ARCH_1
> #elif defined(CONFIG_SPARC64)
> # define VM_SPARC_ADI VM_ARCH_1 /* Uses ADI tag for access control */
> # define VM_ARCH_CLEAR VM_SPARC_ADI
> diff --git a/include/linux/moduleparam.h b/include/linux/moduleparam.h
> index 962cd41a2cb5aff1..99e4f1f718c705ce 100644
> --- a/include/linux/moduleparam.h
> +++ b/include/linux/moduleparam.h
> @@ -276,7 +276,7 @@ struct kparam_array
> read-only sections (which is part of respective UNIX ABI on these
> platforms). So 'const' makes no sense and even causes compile failures
> with some compilers. */
> -#if defined(CONFIG_ALPHA) || defined(CONFIG_IA64) || defined(CONFIG_PPC64)
> +#if defined(CONFIG_ALPHA) || defined(CONFIG_PPC64)
> #define __moduleparam_const
> #else
> #define __moduleparam_const const
> diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
> index 412b5a46374c036f..c00b48003f63d094 100644
> --- a/include/trace/events/mmflags.h
> +++ b/include/trace/events/mmflags.h
> @@ -143,7 +143,7 @@ IF_HAVE_PG_SKIP_KASAN_POISON(PG_skip_kasan_poison, "skip_kasan_poison")
> #define __VM_ARCH_SPECIFIC_1 {VM_PAT, "pat" }
> #elif defined(CONFIG_PPC)
> #define __VM_ARCH_SPECIFIC_1 {VM_SAO, "sao" }
> -#elif defined(CONFIG_PARISC) || defined(CONFIG_IA64)
> +#elif defined(CONFIG_PARISC)
> #define __VM_ARCH_SPECIFIC_1 {VM_GROWSUP, "growsup" }
> #elif !defined(CONFIG_MMU)
> #define __VM_ARCH_SPECIFIC_1 {VM_MAPPED_COPY,"mappedcopy" }
> diff --git a/init/Kconfig b/init/Kconfig
> index 44e90b28a30f12e8..b62319d85b198fa7 100644
> --- a/init/Kconfig
> +++ b/init/Kconfig
> @@ -1775,7 +1775,7 @@ config KALLSYMS_ABSOLUTE_PERCPU
> config KALLSYMS_BASE_RELATIVE
> bool
> depends on KALLSYMS
> - default !IA64
> + default y
> help
> Instead of emitting them as absolute values in the native word size,
> emit the symbol references in the kallsyms table as 32-bit entries,
> diff --git a/kernel/cpu.c b/kernel/cpu.c
> index 6c0a92ca6bb59c2c..14eddcc4d654f7ef 100644
> --- a/kernel/cpu.c
> +++ b/kernel/cpu.c
> @@ -1423,9 +1423,6 @@ static int cpu_up(unsigned int cpu, enum cpuhp_state target)
> if (!cpu_possible(cpu)) {
> pr_err("can't online cpu %d because it is not configured as may-hotadd at boot time\n",
> cpu);
> -#if defined(CONFIG_IA64)
> - pr_err("please check additional_cpus= boot parameter\n");
> -#endif
> return -EINVAL;
> }
>
> diff --git a/kernel/fork.c b/kernel/fork.c
> index 9f7fe354189785c2..6a2475d1442f0966 100644
> --- a/kernel/fork.c
> +++ b/kernel/fork.c
> @@ -2914,7 +2914,7 @@ static inline bool clone3_stack_valid(struct kernel_clone_args *kargs)
> if (!access_ok((void __user *)kargs->stack, kargs->stack_size))
> return false;
>
> -#if !defined(CONFIG_STACK_GROWSUP) && !defined(CONFIG_IA64)
> +#if !defined(CONFIG_STACK_GROWSUP)
> kargs->stack += kargs->stack_size;
> #endif
> }
> diff --git a/kernel/sched/core.c b/kernel/sched/core.c
> index e838feb6adc50460..285f5c3c92f13476 100644
> --- a/kernel/sched/core.c
> +++ b/kernel/sched/core.c
> @@ -10144,9 +10144,9 @@ void normalize_rt_tasks(void)
>
> #endif /* CONFIG_MAGIC_SYSRQ */
>
> -#if defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB)
> +#if defined(CONFIG_KGDB_KDB)
> /*
> - * These functions are only useful for the IA64 MCA handling, or kdb.
> + * These functions are only useful for kdb.
> *
> * They can only be called when the whole system has been
> * stopped - every CPU needs to be quiescent, and no scheduling
> @@ -10168,30 +10168,7 @@ struct task_struct *curr_task(int cpu)
> return cpu_curr(cpu);
> }
>
> -#endif /* defined(CONFIG_IA64) || defined(CONFIG_KGDB_KDB) */
> -
> -#ifdef CONFIG_IA64
> -/**
> - * ia64_set_curr_task - set the current task for a given CPU.
> - * @cpu: the processor in question.
> - * @p: the task pointer to set.
> - *
> - * Description: This function must only be used when non-maskable interrupts
> - * are serviced on a separate stack. It allows the architecture to switch the
> - * notion of the current task on a CPU in a non-blocking manner. This function
> - * must be called with all CPU's synchronized, and interrupts disabled, the
> - * and caller must save the original value of the current task (see
> - * curr_task() above) and restore that value before reenabling interrupts and
> - * re-starting the system.
> - *
> - * ONLY VALID WHEN THE WHOLE SYSTEM IS STOPPED!
> - */
> -void ia64_set_curr_task(int cpu, struct task_struct *p)
> -{
> - cpu_curr(cpu) = p;
> -}
> -
> -#endif
> +#endif /* defined(CONFIG_KGDB_KDB) */
>
> #ifdef CONFIG_CGROUP_SCHED
> /* task_group_lock serializes the addition/removal of task groups */
> diff --git a/kernel/sysctl.c b/kernel/sysctl.c
> index 137d4abe3eda11a6..a2ae4f9c5c218acd 100644
> --- a/kernel/sysctl.c
> +++ b/kernel/sysctl.c
> @@ -1961,15 +1961,6 @@ static struct ctl_table kern_table[] = {
> .proc_handler = proc_dointvec,
> },
> #endif
> -#ifdef CONFIG_IA64
> - {
> - .procname = "unaligned-dump-stack",
> - .data = &unaligned_dump_stack,
> - .maxlen = sizeof (int),
> - .mode = 0644,
> - .proc_handler = proc_dointvec,
> - },
> -#endif
> #ifdef CONFIG_RT_MUTEXES
> {
> .procname = "max_lock_depth",
> diff --git a/lib/Kconfig.debug b/lib/Kconfig.debug
> index 02ee440f7be36cab..b2b8163f1e5e3494 100644
> --- a/lib/Kconfig.debug
> +++ b/lib/Kconfig.debug
> @@ -816,7 +816,7 @@ config DEBUG_KMEMLEAK_AUTO_SCAN
>
> config DEBUG_STACK_USAGE
> bool "Stack utilization instrumentation"
> - depends on DEBUG_KERNEL && !IA64
> + depends on DEBUG_KERNEL
> help
> Enables the display of the minimum amount of free stack which each
> task has ever had available in the sysrq-T and sysrq-P debug output.
> diff --git a/lib/decompress_unxz.c b/lib/decompress_unxz.c
> index 9f4262ee33a5b9cb..33017d1eb3683302 100644
> --- a/lib/decompress_unxz.c
> +++ b/lib/decompress_unxz.c
> @@ -131,9 +131,6 @@
> #ifdef CONFIG_ARM
> # define XZ_DEC_ARM
> #endif
> -#ifdef CONFIG_IA64
> -# define XZ_DEC_IA64
> -#endif
> #ifdef CONFIG_SPARC
> # define XZ_DEC_SPARC
> #endif
> diff --git a/lib/xz/Kconfig b/lib/xz/Kconfig
> index adce22ac18d660b1..aef086a6bf2f3d27 100644
> --- a/lib/xz/Kconfig
> +++ b/lib/xz/Kconfig
> @@ -19,11 +19,6 @@ config XZ_DEC_POWERPC
> default y
> select XZ_DEC_BCJ
>
> -config XZ_DEC_IA64
> - bool "IA-64 BCJ filter decoder" if EXPERT
> - default y
> - select XZ_DEC_BCJ
> -
> config XZ_DEC_ARM
> bool "ARM BCJ filter decoder" if EXPERT
> default y
> diff --git a/mm/mmap.c b/mm/mmap.c
> index 425a9349e610825f..62d7bb74c6d0f74e 100644
> --- a/mm/mmap.c
> +++ b/mm/mmap.c
> @@ -1902,9 +1902,9 @@ static int acct_stack_growth(struct vm_area_struct *vma,
> return 0;
> }
>
> -#if defined(CONFIG_STACK_GROWSUP) || defined(CONFIG_IA64)
> +#if defined(CONFIG_STACK_GROWSUP)
> /*
> - * PA-RISC uses this for its stack; IA64 for its Register Backing Store.
> + * PA-RISC uses this for its stack.
> * vma is the last one with address > vma->vm_end. Have to extend vma.
> */
> int expand_upwards(struct vm_area_struct *vma, unsigned long address)
> @@ -1994,7 +1994,7 @@ int expand_upwards(struct vm_area_struct *vma, unsigned long address)
> mas_destroy(&mas);
> return error;
> }
> -#endif /* CONFIG_STACK_GROWSUP || CONFIG_IA64 */
> +#endif /* CONFIG_STACK_GROWSUP */
>
> /*
> * vma is the first one with address < vma->vm_start. Have to extend vma.
> diff --git a/scripts/headers_install.sh b/scripts/headers_install.sh
> index 4041881746adef21..9c009558e7286983 100755
> --- a/scripts/headers_install.sh
> +++ b/scripts/headers_install.sh
> @@ -76,7 +76,6 @@ arch/arc/include/uapi/asm/swab.h:CONFIG_ARC_HAS_SWAPE
> arch/arm/include/uapi/asm/ptrace.h:CONFIG_CPU_ENDIAN_BE8
> arch/hexagon/include/uapi/asm/ptrace.h:CONFIG_HEXAGON_ARCH_VERSION
> arch/hexagon/include/uapi/asm/user.h:CONFIG_HEXAGON_ARCH_VERSION
> -arch/ia64/include/uapi/asm/cmpxchg.h:CONFIG_IA64_DEBUG_CMPXCHG
> arch/m68k/include/uapi/asm/ptrace.h:CONFIG_COLDFIRE
> arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_NO
> arch/nios2/include/uapi/asm/swab.h:CONFIG_NIOS2_CI_SWAB_SUPPORT
> diff --git a/tools/arch/ia64/include/asm/barrier.h b/tools/arch/ia64/include/asm/barrier.h
> deleted file mode 100644
> index 6fffe56827134385..0000000000000000
> diff --git a/tools/arch/ia64/include/uapi/asm/bitsperlong.h b/tools/arch/ia64/include/uapi/asm/bitsperlong.h
> deleted file mode 100644
> index 1146d55563db3773..0000000000000000
> diff --git a/tools/arch/ia64/include/uapi/asm/mman.h b/tools/arch/ia64/include/uapi/asm/mman.h
> deleted file mode 100644
> index 2a19bb1db4ab6076..0000000000000000
> diff --git a/usr/include/Makefile b/usr/include/Makefile
> index 07796df0a295b960..338c81f1fcf310e0 100644
> --- a/usr/include/Makefile
> +++ b/usr/include/Makefile
> @@ -59,12 +59,6 @@ ifeq ($(SRCARCH),arc)
> no-header-test += linux/bpf_perf_event.h
> endif
>
> -ifeq ($(SRCARCH),ia64)
> -no-header-test += asm/setup.h
> -no-header-test += asm/sigcontext.h
> -no-header-test += linux/if_bonding.h
> -endif
> -
> ifeq ($(SRCARCH),powerpc)
> no-header-test += linux/bpf_perf_event.h
> endif
> --
> 2.39.1
>
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