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authorStefan Kristiansson <stefan.kristiansson@saunalahti.fi>2014-07-03 20:46:40 +0300
committerStafford Horne <shorne@gmail.com>2016-12-12 23:10:26 +0900
commitcdb75442fedff8cc3ddedbe6e41d00b471634e17 (patch)
tree5806594b87c978f1aacb7a69ce0e37c4c77aedc5 /drivers/tty/pty.c
parentd01e1f35fee54fd7131e161956e609dfd47c1056 (diff)
downloadlinux-cdb75442fedff8cc3ddedbe6e41d00b471634e17.tar.gz
openrisc: include l.swa in check for write data pagefault
During page fault handling we check the last instruction to understand
if the fault was for a read or for a write.  By default we fall back to
read.  New instructions were added to the openrisc 1.1 spec for an
atomic load/store pair (l.lwa/l.swa).

This patch adds the opcode for l.swa (0x33) allowing it to be treated as
a write operation.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@saunalahti.fi>
[shorne@gmail.com: expanded a bit on the comment]
Signed-off-by: Stafford Horne <shorne@gmail.com>
Diffstat (limited to 'drivers/tty/pty.c')
0 files changed, 0 insertions, 0 deletions