motorhead/qemu
1
0
Fork 0
mirror of https://github.com/Motorhead1991/qemu.git synced 2025-08-04 08:13:54 -06:00
Code Issues Projects Releases Packages Wiki Activity Actions

bswap: Add the ability to store to an unaligned 24 bit field

Browse source 
CXL has 24 bit unaligned fields which need to be stored to.  CXL is
specified as little endian.

Define st24_le_p() and the supporting functions to store such a field
from a 32 bit host native value.

The use of b, w, l, q as the size specifier is limiting.  So "24" was
used for the size part of the function name.

Reviewed-by: Fan Ni <fan.ni@samsung.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
Message-Id: <20230526170010.574-2-Jonathan.Cameron@huawei.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
This commit is contained in:
Ira Weiny 2023-05-26 18:00:07 +01:00 • committed by Michael S. Tsirkin
parent b455ce4c2f
commit 14180d6221
2 changed files with 27 additions and 0 deletions
Download patch file Download diff file Expand all files Collapse all files

2
docs/devel/loads-stores.rst
View file

@ -36,6 +36,7 @@ store: ``st{size}_{endian}_p(ptr, val)``
``size``
- ``b`` : 8 bits
- ``w`` : 16 bits
- ``24`` : 24 bits
- ``l`` : 32 bits
- ``q`` : 64 bits
@ -65,6 +66,7 @@ of size ``sz`` bytes.
Regexes for git grep
- ``\<ld[us]\?[bwlq]\(_[hbl]e\)\?_p\>``
- ``\<st[bwlq]\(_[hbl]e\)\?_p\>``
- ``\<st24\(_[hbl]e\)\?_p\>``
- ``\<ldn_\([hbl]e\)?_p\>``
- ``\<stn_\([hbl]e\)?_p\>``