Commit Graph

3 Commits

Author SHA1 Message Date
Mischa Jonker 6532b02fe5 ARC: Add read*_relaxed to asm/io.h
Some drivers require these, and ARC didn't had them yet.

Signed-off-by: Mischa Jonker <mjonker@synopsys.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-09-05 10:31:11 +05:30
Gilad Ben-Yossef 4368902bb9 ARC: Add support for ioremap_prot API
Implement ioremap_prot() to allow mapping IO memory with variable
protection
via TLB.

Implementing this allows the /dev/mem driver to use its generic access()
VMA callback, which in turn allows ptrace to examine data in memory
mapped regions mapped via /dev/mem, such as Arc DCCM.

The end result is that it is possible to examine values of variables
placed into DCCM in user space programs via GDB.

CC: Alexey Brodkin <Alexey.Brodkin@synopsys.com>
CC: Noam Camus <noamc@ezchip.com>
Acked-by: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: Gilad Ben-Yossef <gilad@benyossef.com>
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-02-15 23:16:11 +05:30
Vineet Gupta 1162b0701b ARC: I/O and DMA Mappings
Signed-off-by: Vineet Gupta <vgupta@synopsys.com>
2013-02-15 23:15:54 +05:30