diff options
| author | Ian Romanick <[email protected]> | 2019-11-14 14:16:26 -0800 |
|---|---|---|
| committer | Marge Bot <[email protected]> | 2020-01-23 00:18:57 +0000 |
| commit | b14e718e68019019ea241d7e7a7f1bbdb8fcf21e (patch) | |
| tree | e2b2a4b69e89b523f1dac23f561e950898b08bf6 /src/gallium | |
| parent | 9db20748fd1af930920424a95321ee11b6eae16e (diff) | |
gallium: Add a cap bit for integer multiplication between 32-bit and 16-bit
Driver supports integer multiplication between a 32-bit integer and a
16-bit integer. If the second operand is 32-bits, the upper 16-bits are
ignored, and the low 16-bits are possibly sign extended as necessary.
Iris will eventually enable this. Not sure about other drivers.
v2: Add default value to u_screen.c. Suggested by Caio.
Reviewed-by: Caio Marcelo de Oliveira Filho <[email protected]>
Reviewed-by: Kenneth Graunke <[email protected]>
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/merge_requests/767>
Diffstat (limited to 'src/gallium')
| -rw-r--r-- | src/gallium/auxiliary/util/u_screen.c | 1 | ||||
| -rw-r--r-- | src/gallium/docs/source/screen.rst | 1 | ||||
| -rw-r--r-- | src/gallium/include/pipe/p_defines.h | 1 |
3 files changed, 3 insertions, 0 deletions
diff --git a/src/gallium/auxiliary/util/u_screen.c b/src/gallium/auxiliary/util/u_screen.c index 5a7790b75de..785d1bd3e24 100644 --- a/src/gallium/auxiliary/util/u_screen.c +++ b/src/gallium/auxiliary/util/u_screen.c @@ -405,6 +405,7 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen, return 16; case PIPE_CAP_OPENCL_INTEGER_FUNCTIONS: + case PIPE_CAP_INTEGER_MULTIPLY_32X16: return 0; default: diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst index a0149cf6994..5137418bd7c 100644 --- a/src/gallium/docs/source/screen.rst +++ b/src/gallium/docs/source/screen.rst @@ -566,6 +566,7 @@ The integer capabilities: * ``PIPE_CAP_CLIP_PLANES``: Driver supports user-defined clip-planes. * ``PIPE_CAP_MAX_VERTEX_BUFFERS``: Number of supported vertex buffers. * ``PIPE_CAP_OPENCL_INTEGER_FUNCTIONS``: Driver supports extended OpenCL-style integer functions. This includes averge, saturating additiong, saturating subtraction, absolute difference, count leading zeros, and count trailing zeros. +* ``PIPE_CAP_INTEGER_MULTIPLY_32X16``: Driver supports integer multiplication between a 32-bit integer and a 16-bit integer. If the second operand is 32-bits, the upper 16-bits are ignored, and the low 16-bits are possibly sign extended as necessary. .. _pipe_capf: diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h index 3599b771347..4a7edd4e084 100644 --- a/src/gallium/include/pipe/p_defines.h +++ b/src/gallium/include/pipe/p_defines.h @@ -911,6 +911,7 @@ enum pipe_cap PIPE_CAP_CLIP_PLANES, PIPE_CAP_MAX_VERTEX_BUFFERS, PIPE_CAP_OPENCL_INTEGER_FUNCTIONS, + PIPE_CAP_INTEGER_MULTIPLY_32X16, }; /** |