[Mesa-dev] [PATCH v2 9/9] nvc0: Enable ARB_shader_ballot on Kepler+

[Boyan Ding]

readInvocationARB() and readFirstInvocationARB() need SHFL.IDX
instruction which is introduced in Kepler.
---
 docs/features.txt                              | 2 +-
 docs/relnotes/17.1.0.html                      | 2 +-
 src/gallium/drivers/nouveau/nvc0/nvc0_screen.c | 3 ++-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/docs/features.txt b/docs/features.txt
index edc56842b9..a2d7785827 100644
--- a/docs/features.txt
+++ b/docs/features.txt
@@ -292,7 +292,7 @@ Khronos, ARB, and OES extensions that are not part of any OpenGL or OpenGL ES ve
   GL_ARB_sample_locations                               not started
   GL_ARB_seamless_cubemap_per_texture                   DONE (i965, nvc0, radeonsi, r600, softpipe, swr)
   GL_ARB_shader_atomic_counter_ops                      DONE (i965/gen7+, nvc0, radeonsi, softpipe)
-  GL_ARB_shader_ballot                                  DONE (radeonsi)
+  GL_ARB_shader_ballot                                  DONE (nvc0, radeonsi)
   GL_ARB_shader_clock                                   DONE (i965/gen7+, nv50, nvc0, radeonsi)
   GL_ARB_shader_draw_parameters                         DONE (i965, nvc0, radeonsi)
   GL_ARB_shader_group_vote                              DONE (nvc0, radeonsi)
diff --git a/docs/relnotes/17.1.0.html b/docs/relnotes/17.1.0.html
index 0a5cabe4f1..8f237ed527 100644
--- a/docs/relnotes/17.1.0.html
+++ b/docs/relnotes/17.1.0.html
@@ -45,7 +45,7 @@ Note: some of the new features are only available with certain drivers.
 
 <ul>
 <li>GL_ARB_gpu_shader_int64 on i965/gen8+, nvc0, radeonsi, softpipe, llvmpipe</li>
-<li>GL_ARB_shader_ballot on radeonsi</li>
+<li>GL_ARB_shader_ballot on nvc0, radeonsi</li>
 <li>GL_ARB_shader_clock on nv50, nvc0, radeonsi</li>
 <li>GL_ARB_shader_group_vote on radeonsi</li>
 <li>GL_ARB_sparse_buffer on radeonsi/CIK+</li>
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 7ef9bf9c9c..8c6712a121 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -259,6 +259,8 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
       return class_3d >= NVE4_3D_CLASS; /* needs testing on fermi */
    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
       return class_3d >= GM200_3D_CLASS;
+   case PIPE_CAP_TGSI_BALLOT:
+      return class_3d >= NVE4_3D_CLASS;
 
    /* unsupported caps */
    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
@@ -289,7 +291,6 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
-   case PIPE_CAP_TGSI_BALLOT:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
-- 
2.12.1