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Vladimir Murzin 1b11d39e6a ARM: NOMMU: Set ARM_DMA_MEM_BUFFERABLE for M-class cpus 
Now, we have dedicated non-cacheable region for consistent DMA
operations. However, that region can still be marked as bufferable by
MPU, so it'd be safer to have barriers by default. M-class machines
that didn't need it until now also likely won't need it in the future,
therefore, we offer this as an option.

Tested-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Tested-by: Andras Szemzo <sza@esh.hu>
Tested-by: Alexandre TORGUE <alexandre.torgue@st.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2017-06-30 10:03:10 -07:00
..
abort-ev4.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
abort-ev4t.S
ARM: entry: data abort: tail-call the main data abort handler
2011-07-02 10:56:11 +01:00
abort-ev5t.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
abort-ev5tj.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
abort-ev6.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
abort-ev7.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
abort-lv4t.S
ARM: fix oops when using older ARMv4T CPUs
2016-10-19 10:18:43 +01:00
abort-macro.S
ARM: entry: provide uaccess assembly macro hooks
2015-08-26 20:27:02 +01:00
abort-nommu.S
ARM: entry: data abort: tail-call the main data abort handler
2011-07-02 10:56:11 +01:00
alignment.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>
2017-03-02 08:42:34 +01:00
cache-aurora-l2.h
ARM: 7547/4: cache-l2x0: add support for Aurora L2 cache ctrl
2012-11-06 19:47:35 +00:00
cache-fa.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-feroceon-l2.c
ARM: 8416/1: Feroceon: use of_iomap() to map register base
2015-08-18 14:00:30 +01:00
cache-l2x0-pmu.c
cpu/hotplug: Cleanup state names
2016-12-25 10:47:44 +01:00
cache-l2x0.c
ARM: 8659/1: l2c: allow CA9 optimizations to be disabled
2017-03-17 10:01:26 +00:00
cache-nop.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-tauros2.c
ARM: l2c: tauros2: use descriptive definitions for register bits
2015-11-26 22:12:26 +00:00
cache-tauros3.h
ARM: 7922/1: l2x0: add Marvell Tauros3 support
2013-12-29 12:32:47 +00:00
cache-uniphier.c
ARM: 8652/1: cache-uniphier: clean up active way setup code
2017-02-28 11:06:17 +00:00
cache-v4.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-v4wb.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-v4wt.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-v6.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
cache-v7.S
scripts/spelling.txt: add "swith" pattern and fix typo instances
2017-02-27 18:43:46 -08:00
cache-v7m.S
scripts/spelling.txt: add "swith" pattern and fix typo instances
2017-02-27 18:43:46 -08:00
cache-xsc3l2.c
ARM: move CP15 definitions to separate header file
2012-03-28 18:30:01 +01:00
context.c
ARM: 8465/1: mm: keep reserved ASIDs in sync with mm after multiple rollovers
2015-12-02 23:57:54 +00:00
copypage-fa.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-feroceon.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-v4mc.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
copypage-v4wb.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-v4wt.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-v6.c
ARM: 8236/1: mm: fix discard_old_kernel_data
2014-12-03 16:00:04 +00:00
copypage-xsc3.c
arm: remove the second argument of k[un]map_atomic()
2012-03-20 21:48:14 +08:00
copypage-xscale.c
Merge branch 'for-linus' of git://git.linaro.org/people/rmk/linux-arm
2012-03-29 16:53:48 -07:00
dma-mapping-nommu.c
ARM: NOMMU: Introduce dma operations for noMMU
2017-06-30 10:03:09 -07:00
dma-mapping.c
arm: remove arch specific dma_supported implementation
2017-06-28 06:54:45 -07:00
dma.h
ARM: reduce visibility of dmac_* functions
2015-08-01 22:25:04 +01:00
dump.c
ARM: 8666/1: mm: dump: Add domain to output
2017-03-29 17:39:17 +01:00
extable.c
arm: migrate exception table users off module.h and onto extable.h
2017-01-24 12:41:46 -05:00
fault-armv.c
ARM: convert printk(KERN_* to pr_*
2014-11-21 15:24:50 +00:00
fault.c
sched/headers: Prepare for new header dependencies before moving code to <linux/sched/debug.h>
2017-03-02 08:42:34 +01:00
fault.h
ARM: 8642/1: LPAE: catch pending imprecise abort on unmask
2017-01-30 12:04:12 +00:00
flush.c
ARM: 8627/1: avoid cache flushing in flush_dcache_page()
2017-01-10 23:31:30 +00:00
fsr-2level.c
ARM: LPAE: Move the FSR definitions to separate files
2011-12-08 10:30:37 +00:00
fsr-3level.c
ARM: mm: Transparent huge page support for LPAE systems.
2013-06-04 16:52:38 +01:00
highmem.c
kmap_atomic_to_page() has no users, remove it
2015-11-09 15:11:24 -08:00
hugetlbpage.c
mm/hugetlb: reduce arch dependent code about huge_pmd_unshare
2015-06-24 17:49:41 -07:00
idmap.c
sched/headers: Prepare to remove the <linux/mm_types.h> dependency from <linux/sched.h>
2017-03-02 08:42:37 +01:00
init.c
ARM: 8672/1: mm: remove tasklist locking from update_sections_early()
2017-04-26 10:59:36 +01:00
iomap.c
arm/PCI: remove arch pci_flags definition
2012-02-23 20:18:56 -07:00
ioremap.c
ARM: Implement pci_remap_cfgspace() interface
2017-04-24 13:53:13 -05:00
Kconfig
ARM: NOMMU: Set ARM_DMA_MEM_BUFFERABLE for M-class cpus
2017-06-30 10:03:10 -07:00
l2c-common.c
ARM: outer cache: add WARN_ON() to outer_disable()
2014-05-30 00:47:23 +01:00
l2c-l2x0-resume.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
Makefile
ARM: NOMMU: Introduce dma operations for noMMU
2017-06-30 10:03:09 -07:00
mm.h
ARM: provide common method to clear bits in CPU control register
2014-06-02 09:20:11 +01:00
mmap.c
mm: larger stack guard gap, between vmas
2017-06-19 21:50:20 +08:00
mmu.c
* ARM: HYP mode stub supports kexec/kdump on 32-bit; improved PMU
2017-05-08 12:37:56 -07:00
nommu.c
pci-v4.12-changes
2017-05-08 19:03:25 -07:00
pabort-legacy.S
ARM: entry: prefetch abort: tail-call the main prefetch abort handler
2011-07-02 10:56:10 +01:00
pabort-v6.S
ARM: entry: prefetch abort: tail-call the main prefetch abort handler
2011-07-02 10:56:10 +01:00
pabort-v7.S
ARM: entry: prefetch abort: tail-call the main prefetch abort handler
2011-07-02 10:56:10 +01:00
pageattr.c
arm: use set_memory.h header
2017-05-08 17:15:13 -07:00
pgd.c
arm: get rid of superfluous __GFP_REPEAT
2016-07-26 16:19:19 -07:00
physaddr.c
ARM: 8640/1: Add support for CONFIG_DEBUG_VIRTUAL
2017-02-28 11:06:09 +00:00
proc-arm7tdmi.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm9tdmi.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm720.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm740.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm920.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm922.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm925.S
ARM: 8349/1: arch/arm/mm/proc-arm925.S: remove dead #ifdef block
2015-05-03 23:22:27 +01:00
proc-arm926.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm940.S
Merge branches 'misc', 'vdso' and 'fixes' into for-next
2015-04-14 22:28:25 +01:00
proc-arm946.S
Merge branches 'misc', 'vdso' and 'fixes' into for-next
2015-04-14 22:28:25 +01:00
proc-arm1020.S
ARM: 8348/1: remove comments on CPU_ARM1020_CPU_IDLE
2015-05-03 23:22:09 +01:00
proc-arm1020e.S
ARM: 8348/1: remove comments on CPU_ARM1020_CPU_IDLE
2015-05-03 23:22:09 +01:00
proc-arm1022.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-arm1026.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-fa526.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-feroceon.S
ARM: 8350/1: proc-feroceon: Fix feroceon_proc_info macro
2015-05-03 23:23:09 +01:00
proc-macros.S
ARM: 8606/1: V7M: introduce cache operations
2016-09-06 15:51:07 +01:00
proc-mohawk.S
ARM: mohawk: allow building with MMU disabled
2015-12-01 21:44:25 +01:00
proc-sa110.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-sa1100.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-syms.c
ARM: modules: don't export cpu_set_pte_ext when !MMU
2013-03-26 09:55:34 +00:00
proc-v6.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-v7-2level.S
Merge branches 'arnd-fixes', 'clk', 'misc', 'v7' and 'fixes' into for-next
2015-06-12 21:18:08 +01:00
proc-v7-3level.S
ARM: redo TTBR setup code for LPAE
2015-06-01 23:48:19 +01:00
proc-v7.S
ARM: Update cpu_v7_reset documentation
2017-04-09 07:49:25 -07:00
proc-v7m.S
Merge branches 'fixes' and 'misc' into for-next
2017-04-26 10:59:49 +01:00
proc-xsc3.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
proc-xscale.S
ARM: 8314/1: replace PROCINFO embedded branch with relative offset
2015-03-28 15:46:14 +00:00
pv-fixup-asm.S
ARM: re-implement physical address space switching
2015-06-01 23:46:33 +01:00
tcm.h
ARM: 7694/1: ARM, TCM: initialize TCM in paging_init(), instead of setup_arch()
2013-04-17 16:53:24 +01:00
tlb-fa.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v4.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v4wb.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v4wbi.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v6.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00
tlb-v7.S
ARM: convert all "mov.* pc, reg" to "bx reg" for ARMv6+
2014-07-18 12:29:04 +01:00