linux/arch/s390
Sebastian Ott 92820a5f99 s390: remove virt_to_phys implementation
virt_to_phys on s390 currently uses the LRA instruction to translate
virtual to physical addresses. This creates an unnecessary overhead
and caused trouble with dma debugging code (when called with an
address pointing to a already unmapped page).
Just get rid of s390's implementation and use the one from
asm-generic/io.h .

Note: with this change virt_to_phys will no longer work on vmalloc'ed
addresses.

Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
2013-06-26 21:10:02 +02:00
..
appldata arch: s390: appldata: using strncpy() and strnlen() instead of sprintf() 2013-05-28 10:35:28 +02:00
boot s390: fix linker script for 31 bit builds 2012-10-18 17:50:10 +02:00
crypto s390/crypto: Don't panic after crypto instruction failures 2012-11-23 11:14:27 +01:00
hypfs aio: don't include aio.h in sched.h 2013-05-07 20:16:25 -07:00
include s390: remove virt_to_phys implementation 2013-06-26 21:10:02 +02:00
kernel s390/smp: get rid of generic_smp_call_function_interrupt 2013-06-26 21:10:01 +02:00
kvm Merge tag 'kvm-3.10-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2013-05-05 14:47:31 -07:00
lib s390/uaccess: add "fallthrough" comments 2013-05-02 15:50:19 +02:00
math-emu s390/comments: unify copyright messages and remove file names 2012-07-20 11:15:04 +02:00
mm s390/mem_detect: fix memory hole handling 2013-06-19 15:36:16 +02:00
net s390/bpf,jit: use kcalloc instead of kmalloc and memset 2013-04-17 14:07:27 +02:00
oprofile oprofile, s390: Add support for IBM zEnterprise EC12 2013-04-06 15:25:42 +02:00
pci s390/pci: use to_pci_dev 2013-06-26 21:09:59 +02:00
Kbuild s390/pci: base support 2012-11-30 15:40:45 +01:00
Kconfig s390: remove non existent reference to GENERIC_KERNEL_THREAD 2013-05-07 14:11:54 +02:00
Kconfig.debug Kconfig: consolidate CONFIG_DEBUG_STRICT_USER_COPY_CHECKS 2013-04-30 17:04:09 -07:00
Makefile s390: remove small stack config option 2013-04-26 09:07:08 +02:00
defconfig s390: update defconfig 2012-09-26 15:45:29 +02:00