tgsi: Add WORK_DIM System Value

Add a new WORK_DIM SV type, this is will return the grid dimensions
(1-4) for compute (opencl) kernels.

This is necessary to implement the opencl get_work_dim() function.

Signed-off-by: Hans de Goede <[email protected]>
Reviewed-by: Ilia Mirkin <[email protected]>
Reviewed-by: Samuel Pitoiset <[email protected]>

1 files changed, 1 insertions, 0 deletions

diff --git a/src/gallium/include/pipe/p_shader_tokens.h b/src/gallium/include/pipe/p_shader_tokens.h
index abf26d3b468..7621ab92fac 100644
--- a/src/gallium/include/pipe/p_shader_tokens.h
+++ b/src/gallium/include/pipe/p_shader_tokens.h
@@ -199,6 +199,7 @@ enum tgsi_semantic {
    TGSI_SEMANTIC_HELPER_INVOCATION,  /**< current invocation is helper */
    TGSI_SEMANTIC_BASEINSTANCE,
    TGSI_SEMANTIC_DRAWID,
+   TGSI_SEMANTIC_WORK_DIM,    /**< opencl get_work_dim value */
    TGSI_SEMANTIC_COUNT,       /**< number of semantic values */
 };