linux.git/arch/powerpc/kernel/setup_32.c, branch v4.20

memblock: rename memblock_alloc{_nid,_try_nid} to memblock_phys_alloc*

2018-10-31T15:54:15+00:00

Make it explicit that the caller gets a physical address rather than a
virtual one.

This will also allow using meblock_alloc prefix for memblock allocations
returning virtual address, which is done in the following patches.

The conversion is done using the following semantic patch:

@@
expression e1, e2, e3;
@@
(
- memblock_alloc(e1, e2)
+ memblock_phys_alloc(e1, e2)
|
- memblock_alloc_nid(e1, e2, e3)
+ memblock_phys_alloc_nid(e1, e2, e3)
|
- memblock_alloc_try_nid(e1, e2, e3)
+ memblock_phys_alloc_try_nid(e1, e2, e3)
)

Link: http://lkml.kernel.org/r/1536927045-23536-7-git-send-email-rppt@linux.vnet.ibm.com
Signed-off-by: Mike Rapoport 
Acked-by: Michal Hocko 
Cc: Catalin Marinas 
Cc: Chris Zankel 
Cc: "David S. Miller" 
Cc: Geert Uytterhoeven 
Cc: Greentime Hu 
Cc: Greg Kroah-Hartman 
Cc: Guan Xuetao 
Cc: Ingo Molnar 
Cc: "James E.J. Bottomley" 
Cc: Jonas Bonn 
Cc: Jonathan Corbet 
Cc: Ley Foon Tan 
Cc: Mark Salter 
Cc: Martin Schwidefsky 
Cc: Matt Turner 
Cc: Michael Ellerman 
Cc: Michal Simek 
Cc: Palmer Dabbelt 
Cc: Paul Burton 
Cc: Richard Kuo 
Cc: Richard Weinberger 
Cc: Rich Felker 
Cc: Russell King 
Cc: Serge Semin 
Cc: Thomas Gleixner 
Cc: Tony Luck 
Cc: Vineet Gupta 
Cc: Yoshinori Sato 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

powerpc/32: Include setup.h header file to fix warnings

2018-08-10T12:12:38+00:00

Make sure to include setup.h to provide the following prototypes:

  - irqstack_early_init
  - setup_power_save
  - initialize_cache_info

Fix the following warnings (treated as error in W=1):

  arch/powerpc/kernel/setup_32.c:198:13: error: no previous prototype for ‘irqstack_early_init’
  arch/powerpc/kernel/setup_32.c:238:13: error: no previous prototype for ‘setup_power_save’
  arch/powerpc/kernel/setup_32.c:253:13: error: no previous prototype for ‘initialize_cache_info’

Signed-off-by: Mathieu Malaterre 
Signed-off-by: Michael Ellerman

powerpc/lib: Use patch_site to patch copy_32 functions once cache is enabled

2018-08-10T12:12:35+00:00

The symbol memcpy_nocache_branch defined in order to allow patching
of memset function once cache is enabled leads to confusing reports
by perf tool.

Using the new patch_site functionality solves this issue.

Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman

powerpc: clean inclusions of asm/feature-fixups.h

2018-07-30T12:48:17+00:00

files not using feature fixup don't need asm/feature-fixups.h
files using feature fixup need asm/feature-fixups.h

Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman

powerpc: remove kdump.h from page.h

2018-07-30T12:47:53+00:00

page.h doesn't need kdump.h

Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman

powerpc/32: Add missing prototypes for (early|machine)_init()

2018-03-13T04:50:42+00:00

early_init() and machine_init() have no prototype, add one in
asm-prototypes.h.

Fixes the following warnings (treated as error in W=1):
  arch/powerpc/kernel/setup_32.c:68:30: error: no previous prototype for ‘early_init’
  arch/powerpc/kernel/setup_32.c:99:21: error: no previous prototype for ‘machine_init’

Signed-off-by: Mathieu Malaterre 
[mpe: Move them to asm-prototypes.h, drop other functions]
Signed-off-by: Michael Ellerman

powerpc/32: Make some functions static

2018-03-13T04:50:42+00:00

These functions can all be static, make it so.

Signed-off-by: Mathieu Malaterre 
[mpe: Combine a patch of Mathieu's with some other static conversions]
Signed-off-by: Michael Ellerman

powerpc/32: remove a NOP from memset()

2017-09-01T06:42:46+00:00

memset() is patched after initialisation to activate the
optimised part which uses cache instructions.

Today we have a 'b 2f' to skip the optimised patch, which then gets
replaced by a NOP, implying a useless cycle consumption.
As we have a 'bne 2f' just before, we could use that instruction
for the live patching, hence removing the need to have a
dedicated 'b 2f' to be replaced by a NOP.

This patch changes the 'bne 2f' by a 'b 2f'. During init, that
'b 2f' is then replaced by 'bne 2f'

Signed-off-by: Christophe Leroy 
Signed-off-by: Michael Ellerman

powerpc: Move {d,i,u}cache_bsize definitions to a common place

2017-02-06T08:46:04+00:00

The variables are defined twice in setup_32.c and setup_64.c, do it
once in setup-common.c instead

Signed-off-by: Benjamin Herrenschmidt 
Signed-off-by: Michael Ellerman

Replace with globally

2016-12-24T19:46:01+00:00

This was entirely automated, using the script by Al:

  PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*'
  sed -i -e "s!$PATT!#include !" \
        $(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)

to do the replacement at the end of the merge window.

Requested-by: Al Viro 
Signed-off-by: Linus Torvalds