linux.git/arch/ia64/kernel/setup.c, branch v6.5

Merge tag 'x86-boot-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip

2023-06-26T20:39:10+00:00

Pull x86 boot updates from Thomas Gleixner:
 "Initialize FPU late.

  Right now FPU is initialized very early during boot. There is no real
  requirement to do so. The only requirement is to have it done before
  alternatives are patched.

  That's done in check_bugs() which does way more than what the function
  name suggests.

  So first rename check_bugs() to arch_cpu_finalize_init() which makes
  it clear what this is about.

  Move the invocation of arch_cpu_finalize_init() earlier in
  start_kernel() as it has to be done before fork_init() which needs to
  know the FPU register buffer size.

  With those prerequisites the FPU initialization can be moved into
  arch_cpu_finalize_init(), which removes it from the early and fragile
  part of the x86 bringup"

* tag 'x86-boot-2023-06-26' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mem_encrypt: Unbreak the AMD_MEM_ENCRYPT=n build
  x86/fpu: Move FPU initialization into arch_cpu_finalize_init()
  x86/fpu: Mark init functions __init
  x86/fpu: Remove cpuinfo argument from init functions
  x86/init: Initialize signal frame size late
  init, x86: Move mem_encrypt_init() into arch_cpu_finalize_init()
  init: Invoke arch_cpu_finalize_init() earlier
  init: Remove check_bugs() leftovers
  um/cpu: Switch to arch_cpu_finalize_init()
  sparc/cpu: Switch to arch_cpu_finalize_init()
  sh/cpu: Switch to arch_cpu_finalize_init()
  mips/cpu: Switch to arch_cpu_finalize_init()
  m68k/cpu: Switch to arch_cpu_finalize_init()
  loongarch/cpu: Switch to arch_cpu_finalize_init()
  ia64/cpu: Switch to arch_cpu_finalize_init()
  ARM: cpu: Switch to arch_cpu_finalize_init()
  x86/cpu: Switch to arch_cpu_finalize_init()
  init: Provide arch_cpu_finalize_init()

ia64/cpu: Switch to arch_cpu_finalize_init()

2023-06-16T08:15:59+00:00

check_bugs() is about to be phased out. Switch over to the new
arch_cpu_finalize_init() implementation.

No functional change.

Signed-off-by: Thomas Gleixner 
Link: https://lore.kernel.org/r/20230613224545.137045745@linutronix.de

init: remove pointless Root_* values

2023-06-05T16:55:20+00:00

Remove all unused defines, and just use the expanded versions for
the SCSI disk majors.

I've decided to keep Root_RAM0 even if it could be expanded as there
is a lot of special casing for it in the init code.

Signed-off-by: Christoph Hellwig 
Link: https://lore.kernel.org/r/20230531125535.676098-6-hch@lst.de
Signed-off-by: Jens Axboe

ia64: move from strlcpy with unused retval to strscpy

2022-09-12T04:55:09+00:00

Follow the advice of the below link and prefer 'strscpy' in this
subsystem.  Conversion is 1:1 because the return value is not used. 
Generated by a coccinelle script.

Link: https://lore.kernel.org/r/CAHk-=wgfRnXz0W3D37d01q3JFkr_i_uTL=V6A6G1oUZcprmknw@mail.gmail.com/
Link: https://lkml.kernel.org/r/20220818205940.6216-1-wsa+renesas@sang-engineering.com
Signed-off-by: Wolfram Sang 
Signed-off-by: Andrew Morton

arch/ia64: replace cpumask_weight with cpumask_empty where appropriate

2022-06-03T13:52:57+00:00

setup_arch() calls cpumask_weight() to check if any bit of a given cpumask
is set. We can do it more efficiently with cpumask_empty() because
cpumask_empty() stops traversing the cpumask as soon as it finds first set
bit, while cpumask_weight() counts all bits unconditionally.

Signed-off-by: Yury Norov

arch/ia64/kernel/setup.c: use swap() to make code cleaner

2022-01-15T14:30:24+00:00

Use the macro 'swap()' defined in 'include/linux/minmax.h' to avoid
opencoding it.

Link: https://lkml.kernel.org/r/20211104001908.695110-1-yang.guang5@zte.com.cn
Reported-by: Zeal Robot 
Signed-off-by: Yang Guang 
Cc: David Yang 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ia64: make num_rsvd_regions static

2021-09-03T16:58:09+00:00

Commit f62800992e5917f2 ("ia64: switch to NO_BOOTMEM") removed the last
user of num_rsvd_regions outside arch/ia64/kernel/setup.c.

Link: https://lkml.kernel.org/r/a377b5437e3e9da93d02f996fe06a2b956cb0990.1629884459.git.geert+renesas@glider.be
Signed-off-by: Geert Uytterhoeven 
Cc: Frank Rowand 
Cc: Jay Lan 
Cc: Magnus Damm 
Cc: Mike Rapoport 
Cc: Rob Herring 
Cc: Simon Horman 
Cc: Tony Luck 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ia64: make reserve_elfcorehdr() static

2021-09-03T16:58:09+00:00

There never was a reason for reserve_elfcorehdr() to be global.  Make the
function static, and move it before its sole caller.

Link: https://lkml.kernel.org/r/fe236cd73b64abc4abd03dd808cb015c907f4c8c.1629884459.git.geert+renesas@glider.be
Fixes: cee87af2a5f75713 ("[IA64] kexec: Use EFI_LOADER_DATA for ELF core header")
Signed-off-by: Geert Uytterhoeven 
Cc: Frank Rowand 
Cc: Jay Lan 
Cc: Magnus Damm 
Cc: Mike Rapoport 
Cc: Rob Herring 
Cc: Simon Horman 
Cc: Tony Luck 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

ia64: fix #endif comment for reserve_elfcorehdr()

2021-09-03T16:58:09+00:00

Patch series "ia64: Miscellaneous fixes and cleanups".

This patch series contains some miscellaneous fixes and cleanups for ia64.
The second patch fixes a naming conflict triggered by a patch for the FDT
code.

This patch (of 3):

The definition of reserve_elfcorehdr() depends on CONFIG_CRASH_DUMP, not
CONFIG_PROC_VMCORE.

Link: https://lkml.kernel.org/r/cover.1629884459.git.geert+renesas@glider.be
Link: https://lkml.kernel.org/r/77b4c0648f200cab7e1c2c5171c06763e09362aa.1629884459.git.geert+renesas@glider.be
Fixes: d9a9855d0b06ca6d ("always reserve elfcore header memory in crash kernel")
Fixes: 17c1f07ed70afa4f ("[IA64] Reserve elfcorehdr memory in CONFIG_CRASH_DUMP")
Signed-off-by: Geert Uytterhoeven 
Cc: Simon Horman 
Cc: Tony Luck 
Cc: Jay Lan 
Cc: Magnus Damm 
Cc: Mike Rapoport 
Cc: Rob Herring 
Cc: Frank Rowand 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

locking, arch/ia64: Reduce header dependencies by moving XTP bits into the new header

2020-08-06T14:13:13+00:00

We want to remove the #include  from , but for this
we have to move the XTP bits into a separate header first (as these bits
rely on  definitions), and include them in the .c files that rely
on those APIs.

Co-developed-by: Ingo Molnar 
Signed-off-by: Peter Zijlstra 
Signed-off-by: Ingo Molnar