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authorLinus Torvalds <torvalds@linux-foundation.org>2023-11-02 02:28:33 +0100
committerLinus Torvalds <torvalds@linux-foundation.org>2023-11-02 02:28:33 +0100
commit1e0c505e13162a2abe7c984309cfe2ae976b428d (patch)
tree1a67ca0d219e3990e8290ca33af91323d59e31e2 /Documentation/admin-guide
parentMerge tag 'soc-arm-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc (diff)
parenthexagon: Remove unusable symbols from the ptrace.h uapi (diff)
downloadlinux-1e0c505e13162a2abe7c984309cfe2ae976b428d.tar.xz
linux-1e0c505e13162a2abe7c984309cfe2ae976b428d.zip
Merge tag 'asm-generic-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull ia64 removal and asm-generic updates from Arnd Bergmann: - The ia64 architecture gets its well-earned retirement as planned, now that there is one last (mostly) working release that will be maintained as an LTS kernel. - The architecture specific system call tables are updated for the added map_shadow_stack() syscall and to remove references to the long-gone sys_lookup_dcookie() syscall. * tag 'asm-generic-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic: hexagon: Remove unusable symbols from the ptrace.h uapi asm-generic: Fix spelling of architecture arch: Reserve map_shadow_stack() syscall number for all architectures syscalls: Cleanup references to sys_lookup_dcookie() Documentation: Drop or replace remaining mentions of IA64 lib/raid6: Drop IA64 support Documentation: Drop IA64 from feature descriptions kernel: Drop IA64 support from sig_fault handlers arch: Remove Itanium (IA-64) architecture
Diffstat (limited to 'Documentation/admin-guide')
-rw-r--r--Documentation/admin-guide/kdump/kdump.rst37
-rw-r--r--Documentation/admin-guide/kdump/vmcoreinfo.rst30
-rw-r--r--Documentation/admin-guide/kernel-parameters.txt8
-rw-r--r--Documentation/admin-guide/mm/memory-hotplug.rst2
-rw-r--r--Documentation/admin-guide/sysctl/kernel.rst23
5 files changed, 7 insertions, 93 deletions
diff --git a/Documentation/admin-guide/kdump/kdump.rst b/Documentation/admin-guide/kdump/kdump.rst
index a748e7eb4429..5762e7477a0c 100644
--- a/Documentation/admin-guide/kdump/kdump.rst
+++ b/Documentation/admin-guide/kdump/kdump.rst
@@ -17,7 +17,7 @@ You can use common commands, such as cp, scp or makedumpfile to copy
the memory image to a dump file on the local disk, or across the network
to a remote system.
-Kdump and kexec are currently supported on the x86, x86_64, ppc64, ia64,
+Kdump and kexec are currently supported on the x86, x86_64, ppc64,
s390x, arm and arm64 architectures.
When the system kernel boots, it reserves a small section of memory for
@@ -113,7 +113,7 @@ There are two possible methods of using Kdump.
2) Or use the system kernel binary itself as dump-capture kernel and there is
no need to build a separate dump-capture kernel. This is possible
only with the architectures which support a relocatable kernel. As
- of today, i386, x86_64, ppc64, ia64, arm and arm64 architectures support
+ of today, i386, x86_64, ppc64, arm and arm64 architectures support
relocatable kernel.
Building a relocatable kernel is advantageous from the point of view that
@@ -236,24 +236,6 @@ Dump-capture kernel config options (Arch Dependent, ppc64)
Make and install the kernel and its modules.
-Dump-capture kernel config options (Arch Dependent, ia64)
-----------------------------------------------------------
-
-- No specific options are required to create a dump-capture kernel
- for ia64, other than those specified in the arch independent section
- above. This means that it is possible to use the system kernel
- as a dump-capture kernel if desired.
-
- The crashkernel region can be automatically placed by the system
- kernel at runtime. This is done by specifying the base address as 0,
- or omitting it all together::
-
- crashkernel=256M@0
-
- or::
-
- crashkernel=256M
-
Dump-capture kernel config options (Arch Dependent, arm)
----------------------------------------------------------
@@ -348,11 +330,6 @@ Boot into System Kernel
On ppc64, use "crashkernel=128M@32M".
- On ia64, 256M@256M is a generous value that typically works.
- The region may be automatically placed on ia64, see the
- dump-capture kernel config option notes above.
- If use sparse memory, the size should be rounded to GRANULE boundaries.
-
On s390x, typically use "crashkernel=xxM". The value of xx is dependent
on the memory consumption of the kdump system. In general this is not
dependent on the memory size of the production system.
@@ -383,10 +360,6 @@ For ppc64:
- Use vmlinux
-For ia64:
-
- - Use vmlinux or vmlinuz.gz
-
For s390x:
- Use image or bzImage
@@ -428,14 +401,10 @@ to load dump-capture kernel::
--initrd=<initrd-for-dump-capture-kernel> \
--append="root=<root-dev> <arch-specific-options>"
-Please note, that --args-linux does not need to be specified for ia64.
-It is planned to make this a no-op on that architecture, but for now
-it should be omitted
-
Following are the arch specific command line options to be used while
loading dump-capture kernel.
-For i386, x86_64 and ia64:
+For i386 and x86_64:
"1 irqpoll nr_cpus=1 reset_devices"
diff --git a/Documentation/admin-guide/kdump/vmcoreinfo.rst b/Documentation/admin-guide/kdump/vmcoreinfo.rst
index 599e8d3bcbc3..78e4d2e7ba14 100644
--- a/Documentation/admin-guide/kdump/vmcoreinfo.rst
+++ b/Documentation/admin-guide/kdump/vmcoreinfo.rst
@@ -413,36 +413,6 @@ of a higher page table lookup overhead, and also consumes more page
table space per process. Used to check whether PAE was enabled in the
crash kernel when converting virtual addresses to physical addresses.
-ia64
-====
-
-pgdat_list|(pgdat_list, MAX_NUMNODES)
--------------------------------------
-
-pg_data_t array storing all NUMA nodes information. MAX_NUMNODES
-indicates the number of the nodes.
-
-node_memblk|(node_memblk, NR_NODE_MEMBLKS)
-------------------------------------------
-
-List of node memory chunks. Filled when parsing the SRAT table to obtain
-information about memory nodes. NR_NODE_MEMBLKS indicates the number of
-node memory chunks.
-
-These values are used to compute the number of nodes the crashed kernel used.
-
-node_memblk_s|(node_memblk_s, start_paddr)|(node_memblk_s, size)
-----------------------------------------------------------------
-
-The size of a struct node_memblk_s and the offsets of the
-node_memblk_s's members. Used to compute the number of nodes.
-
-PGTABLE_3|PGTABLE_4
--------------------
-
-User-space tools need to know whether the crash kernel was in 3-level or
-4-level paging mode. Used to distinguish the page table.
-
ARM64
=====
diff --git a/Documentation/admin-guide/kernel-parameters.txt b/Documentation/admin-guide/kernel-parameters.txt
index 758bb25ea3e6..07625c60aa8a 100644
--- a/Documentation/admin-guide/kernel-parameters.txt
+++ b/Documentation/admin-guide/kernel-parameters.txt
@@ -1453,7 +1453,7 @@
See comment before function elanfreq_setup() in
arch/x86/kernel/cpu/cpufreq/elanfreq.c.
- elfcorehdr=[size[KMG]@]offset[KMG] [IA64,PPC,SH,X86,S390]
+ elfcorehdr=[size[KMG]@]offset[KMG] [PPC,SH,X86,S390]
Specifies physical address of start of kernel core
image elf header and optionally the size. Generally
kexec loader will pass this option to capture kernel.
@@ -1516,12 +1516,6 @@
floppy= [HW]
See Documentation/admin-guide/blockdev/floppy.rst.
- force_pal_cache_flush
- [IA-64] Avoid check_sal_cache_flush which may hang on
- buggy SAL_CACHE_FLUSH implementations. Using this
- parameter will force ia64_sal_cache_flush to call
- ia64_pal_cache_flush instead of SAL_CACHE_FLUSH.
-
forcepae [X86-32]
Forcefully enable Physical Address Extension (PAE).
Many Pentium M systems disable PAE but may have a
diff --git a/Documentation/admin-guide/mm/memory-hotplug.rst b/Documentation/admin-guide/mm/memory-hotplug.rst
index cfe034cf1e87..a5ef6ee69d01 100644
--- a/Documentation/admin-guide/mm/memory-hotplug.rst
+++ b/Documentation/admin-guide/mm/memory-hotplug.rst
@@ -33,7 +33,7 @@ used to expose persistent memory, other performance-differentiated memory and
reserved memory regions as ordinary system RAM to Linux.
Linux only supports memory hot(un)plug on selected 64 bit architectures, such as
-x86_64, arm64, ppc64, s390x and ia64.
+x86_64, arm64, ppc64 and s390x.
Memory Hot(Un)Plug Granularity
------------------------------
diff --git a/Documentation/admin-guide/sysctl/kernel.rst b/Documentation/admin-guide/sysctl/kernel.rst
index d89ac2bd8dc4..6584a1f9bfe3 100644
--- a/Documentation/admin-guide/sysctl/kernel.rst
+++ b/Documentation/admin-guide/sysctl/kernel.rst
@@ -436,7 +436,7 @@ ignore-unaligned-usertrap
On architectures where unaligned accesses cause traps, and where this
feature is supported (``CONFIG_SYSCTL_ARCH_UNALIGN_NO_WARN``;
-currently, ``arc``, ``ia64`` and ``loongarch``), controls whether all
+currently, ``arc`` and ``loongarch``), controls whether all
unaligned traps are logged.
= =============================================================
@@ -445,10 +445,7 @@ unaligned traps are logged.
setting.
= =============================================================
-See also `unaligned-trap`_ and `unaligned-dump-stack`_. On ``ia64``,
-this allows system administrators to override the
-``IA64_THREAD_UAC_NOPRINT`` ``prctl`` and avoid logs being flooded.
-
+See also `unaligned-trap`_.
io_uring_disabled
=================
@@ -1539,22 +1536,6 @@ See Documentation/admin-guide/kernel-parameters.rst and
Documentation/trace/boottime-trace.rst.
-.. _unaligned-dump-stack:
-
-unaligned-dump-stack (ia64)
-===========================
-
-When logging unaligned accesses, controls whether the stack is
-dumped.
-
-= ===================================================
-0 Do not dump the stack. This is the default setting.
-1 Dump the stack.
-= ===================================================
-
-See also `ignore-unaligned-usertrap`_.
-
-
unaligned-trap
==============