gallium: add shader cap for dldexp/dfracexp support

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Reviewed-by: Dave Airlie <airlied@redhat.com>

8 files changed, 10 insertions, 0 deletions

diff --git a/src/gallium/auxiliary/gallivm/lp_bld_limits.h b/src/gallium/auxiliary/gallivm/lp_bld_limits.h
index 1af720504a..296236006b 100644
--- a/src/gallium/auxiliary/gallivm/lp_bld_limits.h
+++ b/src/gallium/auxiliary/gallivm/lp_bld_limits.h
@@ -128,6 +128,7 @@ gallivm_get_shader_param(enum pipe_shader_cap param)
       return 1;
    case PIPE_SHADER_CAP_DOUBLES:
    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+   case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_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 02ee4c726c..609c81b1d4 100644
--- a/src/gallium/auxiliary/tgsi/tgsi_exec.h
+++ b/src/gallium/auxiliary/tgsi/tgsi_exec.h
@@ -456,6 +456,7 @@ tgsi_exec_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_DFRACEXP_DLDEXP_SUPPORTED:
       return 1;
    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
       return 0;
diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 0cb5425bc8..e0fd1a2dba 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -334,6 +334,8 @@ to be 0.
   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_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED``: Whether DFRACEXP and
+  DLDEXP are supported.
 
 
 .. _pipe_compute_cap:
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 868491ce34..8546ac8e5c 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -294,6 +294,8 @@ nvc0_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
       return 0;
    case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
       return 0;
+   case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_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 447513b598..06dca25924 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -490,6 +490,7 @@ 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:
+	case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 		return 0;
 	}
 	return 0;
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 4c72045884..f8fd3fa767 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -424,6 +424,7 @@ static int si_get_shader_param(struct pipe_screen* pscreen, unsigned shader, enu
 		return PIPE_SHADER_IR_TGSI;
 	case PIPE_SHADER_CAP_DOUBLES:
 	case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+	case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
 		return 0;
 	}
 	return 0;
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index a951792ef6..2f2ee2ac3d 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -374,6 +374,7 @@ static int svga_get_shader_param(struct pipe_screen *screen, unsigned shader, en
          return PIPE_SHADER_IR_TGSI;
       case PIPE_SHADER_CAP_DOUBLES:
       case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+      case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_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 685e37cefc..ae173b3c2a 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -637,6 +637,7 @@ enum pipe_shader_cap
    PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS,
    PIPE_SHADER_CAP_DOUBLES,
    PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED, /* all rounding modes */
+   PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED,
 };
 
 /**