diff options
| author | Ilia Mirkin <[email protected]> | 2018-04-18 21:13:22 -0400 |
|---|---|---|
| committer | Ilia Mirkin <[email protected]> | 2018-12-26 20:04:57 -0500 |
| commit | 5574414edc471946efb9442398c65fc3f93f3e76 (patch) | |
| tree | 80c9f91b9f1b529ea130beeadd307d6018c44738 /src/gallium/docs/source | |
| parent | bac85342672a265735316049ecf36b74e1f2a852 (diff) | |
tgsi: add ATOMFADD operation
This is supported by at least NVIDIA hardware, and exposeable via GL
extensions.
Signed-off-by: Ilia Mirkin <[email protected]>
Reviewed-by: Marek Olšák <[email protected]>
Diffstat (limited to 'src/gallium/docs/source')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 7d4ebb62674..277f25ca41b 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -2684,6 +2684,21 @@ These atomic operations may only be used with 32-bit integer image formats. resource[offset] = dst_x + src_x +.. opcode:: ATOMFADD - Atomic floating point addition + + Syntax: ``ATOMFADD dst, resource, offset, src`` + + Example: ``ATOMFADD TEMP[0], BUFFER[0], TEMP[1], TEMP[2]`` + + The following operation is performed atomically: + +.. math:: + + dst_x = resource[offset] + + resource[offset] = dst_x + src_x + + .. opcode:: ATOMXCHG - Atomic exchange Syntax: ``ATOMXCHG dst, resource, offset, src`` |