[Mesa-dev] [PATCH 2/6] gallium: add a cap to enable double rounding opcodes
Ilia Mirkin
imirkin at alum.mit.edu
Thu Feb 19 15:52:21 PST 2015
Signed-off-by: Ilia Mirkin <imirkin at alum.mit.edu>
---
src/gallium/auxiliary/gallivm/lp_bld_limits.h | 1 +
src/gallium/auxiliary/tgsi/tgsi_exec.h | 2 ++
src/gallium/docs/source/screen.rst | 2 ++
src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 4 ++++
src/gallium/drivers/r600/r600_pipe.c | 2 ++
src/gallium/drivers/radeonsi/si_pipe.c | 1 +
src/gallium/drivers/svga/svga_screen.c | 1 +
src/gallium/include/pipe/p_defines.h | 3 ++-
8 files changed, 15 insertions(+), 1 deletion(-)
diff --git a/src/gallium/auxiliary/gallivm/lp_bld_limits.h b/src/gallium/auxiliary/gallivm/lp_bld_limits.h
index 8c66f9d..1af7205 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_limits.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_limits.h
@@ -127,6 +127,7 @@ gallivm_get_shader_param(enum pipe_shader_cap param)
case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
return 1;
case PIPE_SHADER_CAP_DOUBLES:
+ case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
return 0;
}
/* if we get here, we missed a shader cap above (and should have seen
diff --git a/src/gallium/auxiliary/tgsi/tgsi_exec.h b/src/gallium/auxiliary/tgsi/tgsi_exec.h
index 256cf72..02ee4c7 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
@@ -457,6 +457,8 @@ tgsi_exec_get_shader_param(enum pipe_shader_cap param)
return 1;
case PIPE_SHADER_CAP_DOUBLES:
return 1;
+ case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+ return 0;
}
/* if we get here, we missed a shader cap above (and should have seen
* a compiler warning.)
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 373a2fe..0cb5425 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -332,6 +332,8 @@ to be 0.
sampler views. Must not be lower than PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS.
* ``PIPE_SHADER_CAP_DOUBLES``: Whether double precision floating-point
operations are supported.
+* ``PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED``: Whether double precision rounding
+ is supported. If it is, DTRUNC/DCEIL/DFLR/DROUND opcodes may be used.
.. _pipe_compute_cap:
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index edea845..868491c 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -290,6 +290,10 @@ nvc0_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
return 1;
case PIPE_SHADER_CAP_INTEGERS:
return 1;
+ case PIPE_SHADER_CAP_DOUBLES:
+ return 0;
+ case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+ return 0;
case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
return 16; /* would be 32 in linked (OpenGL-style) mode */
case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index a4b7b66..447513b 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -489,6 +489,8 @@ static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, e
}
case PIPE_SHADER_CAP_DOUBLES:
return 0;
+ case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+ return 0;
}
return 0;
}
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index ec53331..4c72045 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -423,6 +423,7 @@ static int si_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enu
case PIPE_SHADER_CAP_PREFERRED_IR:
return PIPE_SHADER_IR_TGSI;
case PIPE_SHADER_CAP_DOUBLES:
+ case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
return 0;
}
return 0;
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index e468a2f..a951792 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -373,6 +373,7 @@ static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, en
case PIPE_SHADER_CAP_PREFERRED_IR:
return PIPE_SHADER_IR_TGSI;
case PIPE_SHADER_CAP_DOUBLES:
+ case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
return 0;
}
/* If we get here, we failed to handle a cap above */
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 1785043..685e37c 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -635,7 +635,8 @@ enum pipe_shader_cap
PIPE_SHADER_CAP_PREFERRED_IR,
PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED,
PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS,
- PIPE_SHADER_CAP_DOUBLES
+ PIPE_SHADER_CAP_DOUBLES,
+ PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED, /* all rounding modes */
};
/**
--
2.0.5
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