linux-toradex.git/arch/arc/mm/init.c, branch v4.4.10

ARC: [plat-sim] unbork non default CONFIG_LINUX_LINK_BASE

2015-12-17T05:36:43+00:00

HIGHMEM support bumped the default memory size for nsim platform to 1G.
Thus total memory ended at the very edge of start of peripherals address
space. With linux link base shifted, memory started bleeding into
peripheral space which caused early boot bad_page spew !

Fixes: 29e332261d2 ("ARC: mm: HIGHMEM: populate high memory from DT")
Reported-by: Anton Kolesov 
Signed-off-by: Vineet Gupta

ARC: mm: HIGHMEM: populate high memory from DT

2015-10-28T14:20:26+00:00

Signed-off-by: Vineet Gupta

ARC: mm: preps ahead of HIGHMEM support #2

2015-10-28T14:19:00+00:00

Explicit'ify that all memory added so far is low memory
Nothing semantical

Signed-off-by: Vineet Gupta

ARC: Ensure DT mem base is same as what kernel is built with

2015-10-28T10:43:42+00:00

Signed-off-by: Vineet Gupta

ARC: mem init spring cleaning - No functional changes

2015-04-13T09:46:29+00:00

Signed-off-by: Vineet Gupta

ARC: support external initrd

2014-03-26T09:01:27+00:00

Currently ARC only supports embedded initrd. This patch enables
external ones too.

[vgupta: Changed from "rt_start"=start/"rd_size"=sz to unified "initrd"=start,sz]
Signed-off-by: Noam Camus 
Signed-off-by: Vineet Gupta

of: remove early_init_dt_setup_initrd_arch

2013-10-09T16:39:01+00:00

All arches do essentially the same thing now for
early_init_dt_setup_initrd_arch, so it can now be removed.

Signed-off-by: Rob Herring 
Acked-by: Vineet Gupta 
Cc: Russell King 
Cc: Mark Salter 
Cc: Aurelien Jacquiot 
Cc: James Hogan 
Cc: Michal Simek 
Cc: Ralf Baechle 
Cc: Jonas Bonn 
Cc: Benjamin Herrenschmidt 
Cc: Paul Mackerras 
Cc: Thomas Gleixner 
Cc: Ingo Molnar 
Cc: "H. Peter Anvin" 
Cc: x86@kernel.org
Cc: Chris Zankel 
Cc: Max Filippov 
Acked-by: Grant Likely

of: Specify initrd location using 64-bit

2013-07-24T10:10:01+00:00

On some PAE architectures, the entire range of physical memory could reside
outside the 32-bit limit.  These systems need the ability to specify the
initrd location using 64-bit numbers.

This patch globally modifies the early_init_dt_setup_initrd_arch() function to
use 64-bit numbers instead of the current unsigned long.

There has been quite a bit of debate about whether to use u64 or phys_addr_t.
It was concluded to stick to u64 to be consistent with rest of the device
tree code. As summarized by Geert, "The address to load the initrd is decided
by the bootloader/user and set at that point later in time. The dtb should not
be tied to the kernel you are booting"

More details on the discussion can be found here:
https://lkml.org/lkml/2013/6/20/690
https://lkml.org/lkml/2012/9/13/544

Signed-off-by: Santosh Shilimkar 
Acked-by: Rob Herring 
Acked-by: Vineet Gupta 
Acked-by: Jean-Christophe PLAGNIOL-VILLARD 
Signed-off-by: Grant Likely

mm/ARC: prepare for removing num_physpages and simplify mem_init()

2013-07-03T23:07:35+00:00

Prepare for removing num_physpages and simplify mem_init().

Signed-off-by: Jiang Liu 
Acked-by: Vineet Gupta    # for arch/arc
Cc: James Hogan 
Cc: Rob Herring 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

mm: concentrate modification of totalram_pages into the mm core

2013-07-03T23:07:33+00:00

Concentrate code to modify totalram_pages into the mm core, so the arch
memory initialized code doesn't need to take care of it.  With these
changes applied, only following functions from mm core modify global
variable totalram_pages: free_bootmem_late(), free_all_bootmem(),
free_all_bootmem_node(), adjust_managed_page_count().

With this patch applied, it will be much more easier for us to keep
totalram_pages and zone->managed_pages in consistence.

Signed-off-by: Jiang Liu 
Acked-by: David Howells 
Cc: "H. Peter Anvin" 
Cc: "Michael S. Tsirkin" 
Cc: 
Cc: Arnd Bergmann 
Cc: Catalin Marinas 
Cc: Chris Metcalf 
Cc: Geert Uytterhoeven 
Cc: Ingo Molnar 
Cc: Jeremy Fitzhardinge 
Cc: Jianguo Wu 
Cc: Joonsoo Kim 
Cc: Kamezawa Hiroyuki 
Cc: Konrad Rzeszutek Wilk 
Cc: Marek Szyprowski 
Cc: Mel Gorman 
Cc: Michel Lespinasse 
Cc: Minchan Kim 
Cc: Rik van Riel 
Cc: Rusty Russell 
Cc: Tang Chen 
Cc: Tejun Heo 
Cc: Thomas Gleixner 
Cc: Wen Congyang 
Cc: Will Deacon 
Cc: Yasuaki Ishimatsu 
Cc: Yinghai Lu 
Cc: Russell King 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds