linux-sg2042/arch/arc/mm
Vineet Gupta deaf7565eb ARCv2: ioremap: Support dynamic peripheral address space
The peripheral address space is architectural address window which is
uncached and typically used to wire up peripherals.

For ARC700 cores (ARCompact ISA based) this was fixed to 1GB region
0xC000_0000 - 0xFFFF_FFFF.

For ARCv2 based HS38 cores the start address is flexible and can be
0xC, 0xD, 0xE, 0xF 000_000 by programming AUX_NON_VOLATILE_LIMIT reg
(typically done in bootloader)

Further in cas of PAE, the physical address can extend beyond 4GB so
need to confine this check, otherwise all pages beyond 4GB will be
treated as uncached

Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2016-03-19 14:34:10 +05:30
..
Makefile ARC: mm: HIGHMEM: kmap API implementation 2015-10-28 19:49:04 +05:30
cache.c ARCv2: ioremap: Support dynamic peripheral address space 2016-03-19 14:34:10 +05:30
dma.c ARC: dma: reintroduce platform specific dma<->phys 2016-03-19 14:34:09 +05:30
extable.c ARC: Fix coding style issues 2013-04-09 12:21:14 +05:30
fault.c ARC: mm: preps ahead of HIGHMEM support 2015-10-28 19:31:05 +05:30
highmem.c ARC: Fix misspellings in comments. 2016-03-11 14:59:53 +05:30
init.c ARC: [plat-sim] unbork non default CONFIG_LINUX_LINK_BASE 2015-12-17 11:06:43 +05:30
ioremap.c ARCv2: ioremap: Support dynamic peripheral address space 2016-03-19 14:34:10 +05:30
mmap.c ARC: [mm] Aliasing VIPT dcache support 4/4 2013-05-09 22:00:57 +05:30
tlb.c ARC: Fix misspellings in comments. 2016-03-11 14:59:53 +05:30
tlbex.S ARC: use ASL assembler mnemonic 2015-11-14 13:12:21 +05:30