linux-stable.git/arch/xtensa/kernel, branch v3.15.2

Merge tag 'xtensa-next-20140503' of git://github.com/czankel/xtensa-linux

2014-05-05T22:36:59+00:00

Pull Xtensa fixes from Chris Zankel:
 - Fixes allmodconfig, allnoconfig builds
 - Adds highmem support
 - Enables build-time exception table sorting.

* tag 'xtensa-next-20140503' of git://github.com/czankel/xtensa-linux:
  xtensa: ISS: don't depend on CONFIG_TTY
  xtensa: xt2000: drop redundant sysmem initialization
  xtensa: add support for KC705
  xtensa: xtfpga: introduce SoC I/O bus
  xtensa: add HIGHMEM support
  xtensa: optimize local_flush_tlb_kernel_range
  xtensa: dump sysmem from the bootmem_init
  xtensa: handle memmap kernel option
  xtensa: keep sysmem banks ordered in mem_reserve
  xtensa: keep sysmem banks ordered in add_sysmem_bank
  xtensa: split bootparam and kernel meminfo
  xtensa: enable sorting extable at build time
  xtensa: export __{invalidate,flush}_dcache_range
  xtensa: Export __invalidate_icache_range

xtensa: optimize local_flush_tlb_kernel_range

2014-04-06T17:29:17+00:00

Don't flush whole TLB if only a small kernel range is requested.

Signed-off-by: Max Filippov

xtensa: handle memmap kernel option

2014-04-01T21:35:54+00:00

This option is useful for reserving memory regions for secondary cores
in AMP configurations.

Implement the following memmap variants:
- memmap=nn[KMG]@ss[KMG]: force usage of a specific region of memory;
- memmap=nn[KMG]$ss[KMG]: mark specified memory as reserved;
- memmap=nn[KMG]: set end of memory.

Signed-off-by: Max Filippov

xtensa: keep sysmem banks ordered in mem_reserve

2014-04-01T21:35:53+00:00

Rewrite mem_reserve so that it keeps bank order.
Also make its return code more traditional.

Signed-off-by: Max Filippov

xtensa: split bootparam and kernel meminfo

2014-04-01T21:35:51+00:00

Bootparam meminfo is a bootloader ABI, kernel meminfo is for the kernel
bookkeeping, keep them separate. Kernel doesn't care of memory region
types, so drop the type field and don't pass it to add_sysmem_bank.
Move kernel sysmem structures and prototypes to asm/sysmem.h and sysmem
variable and add_sysmem_bank to mm/init.c

Signed-off-by: Max Filippov

xtensa: export __{invalidate,flush}_dcache_range

2014-04-01T21:35:50+00:00

Signed-off-by: Max Filippov

xtensa: Export __invalidate_icache_range

2014-04-01T21:35:49+00:00

When modular code calls flush_icache_range():

    ERROR: "__invalidate_icache_range" [drivers/misc/lkdtm.ko] undefined!
    make[1]: *** [__modpost] Error 1

Signed-off-by: Geert Uytterhoeven 
Reviewed-by: Kees Cook 
Signed-off-by: Max Filippov

Merge branch 'irq/for-gpio' into irq/core

2014-03-12T15:01:07+00:00

Merge the request/release callbacks which are in a separate branch for
consumption by the gpio folks.

Signed-off-by: Thomas Gleixner

xtensa: Use irq_set_affinity instead of homebrewn code

2014-03-04T16:37:55+00:00

There is no point in having an incomplete copy of irq_set_affinity()
for the hotplug irq migration code.

Use the core function instead and while at it switch to
for_each_active_irq()

Signed-off-by: Thomas Gleixner 
Cc: Peter Zijlstra 
Cc: Chris Zankel 
Cc: xtensa 
Link: http://lkml.kernel.org/r/20140223212736.664624945@linutronix.de
Signed-off-by: Thomas Gleixner

Merge tag 'xtensa-for-next-20140221-1' into for_next

2014-02-24T08:34:36+00:00

Xtensa fixes for 3.14:
- allow booting xtfpga on boards with new uBoot and >128MBytes memory;
- drop nonexistent GPIO32 support from fsf variant;
- don't select USE_GENERIC_SMP_HELPERS;
- enable common clock framework support, set up ethoc clock on xtfpga;
- wire up sched_setattr and sched_getattr syscalls.

Signed-off-by: Chris Zankel