Mesa (master): r600: Enable fp64 on chips with native support

[Dave Airlie]

Module: Mesa
Branch: master
Commit: ce34048b575240347f8426c541971d00c810d3c9
URL:    http://cgit.freedesktop.org/mesa/mesa/commit/?id=ce34048b575240347f8426c541971d00c810d3c9

Author: Glenn Kennard <glenn.kennard at gmail.com>
Date:   Fri Sep 11 12:42:23 2015 +0200

r600: Enable fp64 on chips with native support

Cypress/Cayman/Aruba, earlier r6xx/r7xx chips only support a subset
of the needed fp64 ops, and don't do GL4 anyway.

Signed-off-by: Glenn Kennard <glenn.kennard at gmail.com>
Signed-off-by: Dave Airlie <airlied at redhat.com>

---

 docs/GL3.txt                         |    4 ++--
 docs/relnotes/11.1.0.html            |    1 +
 src/gallium/drivers/r600/r600_pipe.c |    3 +++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/docs/GL3.txt b/docs/GL3.txt
index 31c7619..97f642b 100644
--- a/docs/GL3.txt
+++ b/docs/GL3.txt
@@ -109,7 +109,7 @@ GL 4.0, GLSL 4.00 --- all DONE: nvc0, radeonsi
   - Enhanced per-sample shading                        DONE (r600)
   - Interpolation functions                            DONE (r600)
   - New overload resolution rules                      DONE
-  GL_ARB_gpu_shader_fp64                               DONE (llvmpipe, softpipe)
+  GL_ARB_gpu_shader_fp64                               DONE (r600, llvmpipe, softpipe)
   GL_ARB_sample_shading                                DONE (i965, nv50, r600)
   GL_ARB_shader_subroutine                             DONE (i965, nv50, r600, llvmpipe, softpipe)
   GL_ARB_tessellation_shader                           DONE ()
@@ -127,7 +127,7 @@ GL 4.1, GLSL 4.10 --- all DONE: nvc0, radeonsi
   GL_ARB_get_program_binary                            DONE (0 binary formats)
   GL_ARB_separate_shader_objects                       DONE (all drivers)
   GL_ARB_shader_precision                              DONE (all drivers that support GLSL 4.10)
-  GL_ARB_vertex_attrib_64bit                           DONE (llvmpipe, softpipe)
+  GL_ARB_vertex_attrib_64bit                           DONE (r600, llvmpipe, softpipe)
   GL_ARB_viewport_array                                DONE (i965, nv50, r600, llvmpipe)
 
 
diff --git a/docs/relnotes/11.1.0.html b/docs/relnotes/11.1.0.html
index 603b06f..528905f 100644
--- a/docs/relnotes/11.1.0.html
+++ b/docs/relnotes/11.1.0.html
@@ -46,6 +46,7 @@ Note: some of the new features are only available with certain drivers.
 <ul>
 <li>GL_ARB_shader_texture_image_samples on i965</li>
 <li>GL_ARB_texture_query_lod on softpipe</li>
+<li>GL_ARB_gpu_shader_fp64 on r600 for Cypress/Cayman/Aruba chips</li>
 </ul>
 
 <h2>Bug fixes</h2>
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index fd9c16c..a18ec49 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -500,6 +500,9 @@ static int r600_get_shader_param(struct pipe_screen* pscreen, unsigned shader, e
 			return PIPE_SHADER_IR_TGSI;
 		}
 	case PIPE_SHADER_CAP_DOUBLES:
+		if (rscreen->b.family == CHIP_CYPRESS ||
+			rscreen->b.family == CHIP_CAYMAN || rscreen->b.family == CHIP_ARUBA)
+			return 1;
 		return 0;
 	case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
 	case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED: