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@vger.kernel.org
-S:	Orphan
-F:	Documentation/ia64/
-F:	arch/ia64/
-
 IBM Operation Panel Input Driver
 M:	Eddie James <eajames@linux.ibm.com>
 L:	linux-input@vger.kernel.org
@@ -15930,11 +15924,6 @@ L:	linux-i2c@vger.kernel.org
 S:	Maintained
 F:	drivers/i2c/muxes/i2c-mux-pca9541.c
 
-PCDP - PRIMARY CONSOLE AND DEBUG PORT
-M:	Khalid Aziz <khalid@gonehiking.org>
-S:	Maintained
-F:	drivers/firmware/pcdp.*
-
 PCI DRIVER FOR AARDVARK (Marvell Armada 3700)
 M:	Thomas Petazzoni <thomas.petazzoni@bootlin.com>
 M:	Pali Rohár <pali@kernel.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
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diff --git a/arch/ia64/Kconfig b/arch/ia64/Kconfig
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diff --git a/arch/ia64/Kconfig.debug b/arch/ia64/Kconfig.debug
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diff --git a/arch/ia64/Makefile b/arch/ia64/Makefile
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diff --git a/arch/ia64/mm/extable.c b/arch/ia64/mm/extable.c
deleted file mode 100644
index da477c11770b056b..0000000000000000
diff --git a/arch/ia64/mm/fault.c b/arch/ia64/mm/fault.c
deleted file mode 100644
index ef78c2d66cdde243..0000000000000000
diff --git a/arch/ia64/mm/hugetlbpage.c b/arch/ia64/mm/hugetlbpage.c
deleted file mode 100644
index 380d2f3966c98625..0000000000000000
diff --git a/arch/ia64/mm/init.c b/arch/ia64/mm/init.c
deleted file mode 100644
index fc4e4217e87ff5a0..0000000000000000
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
