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| author | John David Anglin <dave.anglin@bell.net> | 2013-01-13 22:04:18 +0000 |
|---|---|---|
| committer | Helge Deller <deller@gmx.de> | 2013-02-20 22:46:46 +0100 |
| commit | 1c4c6597b67f9986a09b34deb337a8b14f4adf3a (patch) | |
| tree | 6916ece9d3ff059721fbfb3a261c9caa3358b44c /arch/parisc/kernel/entry.S | |
| parent | 0e39718b988b84860a6c291a2c82c9cb75e3b8a9 (diff) | |
| download | blackbird-op-linux-1c4c6597b67f9986a09b34deb337a8b14f4adf3a.tar.gz blackbird-op-linux-1c4c6597b67f9986a09b34deb337a8b14f4adf3a.zip | |
parisc: Fix comment describing setup of access rights in entry.S
This comment describes incredibly subtle code, so it should be right!
Signed-off-by: John David Anglin <dave.anglin@bell.net>
Signed-off-by: Helge Deller <deller@gmx.de>
Diffstat (limited to 'arch/parisc/kernel/entry.S')
| -rw-r--r-- | arch/parisc/kernel/entry.S | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/parisc/kernel/entry.S b/arch/parisc/kernel/entry.S index eb7850b46c25..7c9648919c91 100644 --- a/arch/parisc/kernel/entry.S +++ b/arch/parisc/kernel/entry.S @@ -483,7 +483,7 @@ * B <-> _PAGE_DMB (memory break) * * Then incredible subtlety: The access rights are - * _PAGE_GATEWAY _PAGE_EXEC _PAGE_READ + * _PAGE_GATEWAY, _PAGE_EXEC and _PAGE_WRITE * See 3-14 of the parisc 2.0 manual * * Finally, _PAGE_READ goes in the top bit of PL1 (so we @@ -493,7 +493,7 @@ /* PAGE_USER indicates the page can be read with user privileges, * so deposit X1|11 to PL1|PL2 (remember the upper bit of PL1 - * contains _PAGE_READ */ + * contains _PAGE_READ) */ extrd,u,*= \pte,_PAGE_USER_BIT+32,1,%r0 depdi 7,11,3,\prot /* If we're a gateway page, drop PL2 back to zero for promotion |
