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a0f2dee0cd
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Stefano Stabellini a0f2dee0cd xen: add a dma_addr_t dev_addr argument to xen_dma_map_page 
dev_addr is the machine address of the page.

The new parameter can be used by the ARM and ARM64 implementations of
xen_dma_map_page to find out if the page is a local page (pfn == mfn) or
a foreign page (pfn != mfn).

dev_addr could be retrieved again from the physical address, using
pfn_to_mfn, but it requires accessing an rbtree. Since we already have
the dev_addr in our hands at the call site there is no need to get the
mfn twice.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
2014-12-04 12:41:51 +00:00
..
alpha Merge git://git.infradead.org/users/eparis/audit 2014-10-19 16:25:56 -07:00
arc The "weak" attribute is commonly used for the default version of a 2014-10-23 15:04:27 -07:00
arm xen: add a dma_addr_t dev_addr argument to xen_dma_map_page 2014-12-04 12:41:51 +00:00
arm64 xen: add a dma_addr_t dev_addr argument to xen_dma_map_page 2014-12-04 12:41:51 +00:00
avr32 Merge branch 'for-linus' of git://git.infradead.org/users/vkoul/slave-dma 2014-10-18 18:11:04 -07:00
blackfin Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2014-10-15 07:48:18 +02:00
c6x
cris Merge branch 'sched-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 16:23:15 +02:00
frv frv: remove unused declarations of __start___ex_table and __stop___ex_table 2014-10-14 02:18:28 +02:00
hexagon Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 15:48:00 +02:00
ia64 kvm: fix kvm_is_mmio_pfn() and rename to kvm_is_reserved_pfn() 2014-11-26 14:40:45 +01:00
m32r Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 15:48:00 +02:00
m68k m68k: Wire up bpf 2014-10-27 11:02:19 +01:00
metag Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2014-10-15 07:48:18 +02:00
microblaze microblaze: Wire up bpf syscall 2014-10-27 09:25:34 +01:00
mips MIPS: tlbex: Fix potential HTW race on TLBL/M/S handlers 2014-11-27 17:21:56 +01:00
mn10300 Merge branch 'locking-arch-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-10-13 15:48:00 +02:00
openrisc Merge git://git.infradead.org/users/eparis/audit 2014-10-19 16:25:56 -07:00
parisc parisc: Avoid using CONFIG_64BIT in userspace exported headers 2014-11-10 22:25:29 +01:00
powerpc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux 2014-11-27 18:23:41 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2014-11-05 12:13:52 -08:00
score score: use Kbuild logic to include <asm-generic/sections.h> 2014-10-09 22:25:46 -04:00
sh sh: fix sh770x SCIF memory regions 2014-10-29 16:33:15 -07:00
sparc sparc: Add NOP dma_cache_sync() implementation. 2014-11-26 13:36:41 -08:00
tile Merge branch 'for-3.18-consistent-ops' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/percpu 2014-10-15 07:48:18 +02:00
um Merge git://git.infradead.org/users/eparis/audit 2014-10-19 16:25:56 -07:00
unicore32 nosave: consolidate __nosave_{begin,end} in <asm/sections.h> 2014-10-09 22:26:04 -04:00
x86 xen: add a dma_addr_t dev_addr argument to xen_dma_map_page 2014-12-04 12:41:51 +00:00
xtensa Xtensa improvements for 3.18: 2014-10-23 10:30:33 -07:00
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