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Diffstat (limited to 'src/gallium/docs')
| -rw-r--r-- | src/gallium/docs/source/tgsi.rst | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/src/gallium/docs/source/tgsi.rst b/src/gallium/docs/source/tgsi.rst index 7810a3eb915..489cbb0bc2f 100644 --- a/src/gallium/docs/source/tgsi.rst +++ b/src/gallium/docs/source/tgsi.rst @@ -2372,6 +2372,23 @@ programs. the program. Results are unspecified if any of the remaining threads terminates or never reaches an executed BARRIER instruction. +.. opcode:: MEMBAR - Memory barrier + + ``MEMBAR type`` + + This opcode waits for the completion of all memory accesses based on + the type passed in. The type is an immediate bitfield with the following + meaning: + + Bit 0: Shader storage buffers + Bit 1: Atomic buffers + Bit 2: Images + Bit 3: Shared memory + Bit 4: Thread group + + These may be passed in in any combination. An implementation is free to not + distinguish between these as it sees fit. However these map to all the + possibilities made available by GLSL. .. _atomopcodes: |