diff options
| author | Fam Zheng <famz@redhat.com> | 2014-05-05 15:53:41 +0800 |
|---|---|---|
| committer | Michael Tokarev <mjt@tls.msk.ru> | 2014-05-07 21:00:44 +0400 |
| commit | edc1ba7a7a13b1c721f2a7791ff809633d85fb9b (patch) | |
| tree | cd371d15f00da43aa7c52f97d67c323a4525c847 /docs | |
| parent | 307b2f01488ae0fab18a8f0538e7c750842e74dd (diff) | |
docs/memory.txt: Fix document on MMIO operations
.impl.valid should be .impl.unaligned and the description needs some
fixes.
.old_portio is removed since commit b40acf99b (ioport: Switch
dispatching to memory core layer).
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Diffstat (limited to 'docs')
| -rw-r--r-- | docs/memory.txt | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/docs/memory.txt b/docs/memory.txt index 22eaec780e..5bdbdb3691 100644 --- a/docs/memory.txt +++ b/docs/memory.txt @@ -232,8 +232,8 @@ various constraints can be supplied to control how these callbacks are called: (in bytes) supported by the *implementation*; other access sizes will be emulated using the ones available. For example a 4-byte write will be emulated using four 1-byte writes, if .impl.max_access_size = 1. - - .impl.valid specifies that the *implementation* only supports unaligned - accesses; unaligned accesses will be emulated by two aligned accesses. - - .old_portio and .old_mmio can be used to ease porting from code using - cpu_register_io_memory() and register_ioport(). They should not be used - in new code. + - .impl.unaligned specifies that the *implementation* supports unaligned + accesses; if false, unaligned accesses will be emulated by two aligned + accesses. + - .old_mmio can be used to ease porting from code using + cpu_register_io_memory(). It should not be used in new code. |