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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 /Makefile
parentd01e1f35fee54fd7131e161956e609dfd47c1056 (diff)
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>
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