linux.git/arch/hexagon/kernel/setup.c, branch v4.11

hexagon: Fix build failures in linux-next

2014-12-16T19:27:12+00:00

hexagon:defconfig fails to build in linux-next since commit 332fd7c4fef5
("genirq: Generic chip: Change irq_reg_{readl,writel} arguments").

The primary build failure is

arch/hexagon/include/asm/cacheflush.h: In function 'copy_to_user_page':
arch/hexagon/include/asm/cacheflush.h:89:22: error: 'VM_EXEC' undeclared

This is the result of including of  from ,
which is now necessary due to the use of readl and writel from irq.h.
This causes recursive inclusions in hexagon code; cacheflush.h is included
from mm.h prior to the definition of VM_EXEC.

Fix the problem by moving copy_to_user_page from the hexagon include file to
arch/hexagon/mm/cache.c, similar to other architectures. After this change,
several redefinitions of readl and writel are reported. Those are caused
by recursive inclusions of io.h and asm/cacheflush.h. Fix those problems by
reducing the number of files included from those files. Also, it was necessary
to stop including asm-generic/cacheflush.h from asm/cacheflush.h. Instead,
functionality originally provided by asm-generic/cacheflush.h is now coded
in asm/cacheflush.h directly.

Cc: Kevin Cernekee 
Cc: Jason Cooper 
Signed-off-by: Guenter Roeck 
signed-off-by: Richard Kuo

hexagon: remove unnecessary prom.h includes

2013-10-10T01:04:02+00:00

Hexagon does not have a prom.h header, so it is probably broken with
CONFIG_OF enabled. In any case, remove unnecessary prom.h include in
preparation to make prom.h optional.

Signed-off-by: Rob Herring 
Acked-by: Richard Kuo 
Acked-by: Grant Likely 
Cc: linux-hexagon@vger.kernel.org

hexagon: delete __cpuinit usage from all hexagon files

2013-07-14T23:36:55+00:00

The __cpuinit type of throwaway sections might have made sense
some time ago when RAM was more constrained, but now the savings
do not offset the cost and complications.  For example, the fix in
commit 5e427ec2d0 ("x86: Fix bit corruption at CPU resume time")
is a good example of the nasty type of bugs that can be created
with improper use of the various __init prefixes.

After a discussion on LKML[1] it was decided that cpuinit should go
the way of devinit and be phased out.  Once all the users are gone,
we can then finally remove the macros themselves from linux/init.h.

Note that some harmless section mismatch warnings may result, since
notify_cpu_starting() and cpu_up() are arch independent (kernel/cpu.c)
are flagged as __cpuinit  -- so if we remove the __cpuinit from
arch specific callers, we will also get section mismatch warnings.
As an intermediate step, we intend to turn the linux/init.h cpuinit
content into no-ops as early as possible, since that will get rid
of these warnings.  In any case, they are temporary and harmless.

This removes all the arch/hexagon uses of the __cpuinit macros from
all C files.  Currently hexagon does not have any __CPUINIT used in
assembly files.

[1] https://lkml.org/lkml/2013/5/20/589

Cc: Richard Kuo 
Acked-by: Richard Kuo 
Cc: linux-hexagon@vger.kernel.org
Signed-off-by: Paul Gortmaker

Hexagon: update copyright dates

2013-05-01T00:40:27+00:00

Signed-off-by: Richard Kuo

Hexagon: don't print info for offline CPU's

2013-05-01T00:40:25+00:00

Signed-off-by: Richard Kuo

Hexagon: add support for ARCH_PFN_OFFSET

2013-05-01T00:40:22+00:00

Add support for loading the kernel at a physical offset.  The
offset should still be 4M aligned.

Signed-off-by: Richard Kuo

Hexagon: Copyright marking changes

2012-10-18T22:07:21+00:00

Code Aurora Forum (CAF) is becoming a part of Linux Foundation Labs.

Signed-off-by: Richard Kuo

Hexagon: Add startup code

2011-11-01T14:34:19+00:00

Signed-off-by: Richard Kuo 
Acked-by: Arnd Bergmann 
Signed-off-by: Linus Torvalds