[Mesa-dev] [PATCH 5/7] gallium: introduce PIPE_CAP_LOAD_CONSTBUF

Timothy Arceri tarceri at itsqueeze.com
Tue Aug 22 12:14:21 UTC 2017


---
 src/gallium/docs/source/screen.rst               | 2 ++
 src/gallium/drivers/etnaviv/etnaviv_screen.c     | 1 +
 src/gallium/drivers/freedreno/freedreno_screen.c | 1 +
 src/gallium/drivers/i915/i915_screen.c           | 1 +
 src/gallium/drivers/llvmpipe/lp_screen.c         | 1 +
 src/gallium/drivers/nouveau/nv30/nv30_screen.c   | 1 +
 src/gallium/drivers/nouveau/nv50/nv50_screen.c   | 1 +
 src/gallium/drivers/nouveau/nvc0/nvc0_screen.c   | 1 +
 src/gallium/drivers/r300/r300_screen.c           | 1 +
 src/gallium/drivers/r600/r600_pipe.c             | 1 +
 src/gallium/drivers/radeonsi/si_pipe.c           | 1 +
 src/gallium/drivers/softpipe/sp_screen.c         | 1 +
 src/gallium/drivers/svga/svga_screen.c           | 1 +
 src/gallium/drivers/swr/swr_screen.cpp           | 1 +
 src/gallium/drivers/vc4/vc4_screen.c             | 1 +
 src/gallium/drivers/virgl/virgl_screen.c         | 1 +
 src/gallium/include/pipe/p_defines.h             | 1 +
 17 files changed, 18 insertions(+)

diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index be14ddd0c0..0cfe20ec9b 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -397,20 +397,22 @@ The integer capabilities:
 * ``PIPE_CAP_BINDLESS_TEXTURE``: Whether bindless texture operations are
   supported.
 * ``PIPE_CAP_NIR_SAMPLERS_AS_DEREF``: Whether NIR tex instructions should
   reference texture and sampler as NIR derefs instead of by indices.
 * ``PIPE_CAP_QUERY_SO_OVERFLOW``: Whether the
   ``PIPE_QUERY_SO_OVERFLOW_PREDICATE`` and
   ``PIPE_QUERY_SO_OVERFLOW_ANY_PREDICATE`` query types are supported. Note that
   for a driver that does not support multiple output streams (i.e.,
   ``PIPE_CAP_MAX_VERTEX_STREAMS`` is 1), both query types are identical.
 * ``PIPE_CAP_MEMOBJ``: Whether operations on memory objects are supported.
+* ``PIPE_CAP_LOAD_CONSTBUF``: True if the driver supports TGSI_OPCODE_LOAD use
+  with constant buffers.
 
 
 .. _pipe_capf:
 
 PIPE_CAPF_*
 ^^^^^^^^^^^^^^^^
 
 The floating-point capabilities are:
 
 * ``PIPE_CAPF_MAX_LINE_WIDTH``: The maximum width of a regular line.
diff --git a/src/gallium/drivers/etnaviv/etnaviv_screen.c b/src/gallium/drivers/etnaviv/etnaviv_screen.c
index f400e423de..49c700a3d0 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
@@ -256,20 +256,21 @@ etna_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
 
    /* Stream output. */
    case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
    case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
    case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
       return 0;
 
    /* Geometry shader output, unsupported. */
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index b26f67e4e2..425d967015 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -317,20 +317,21 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 	case PIPE_CAP_TGSI_BALLOT:
 	case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 	case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
 	case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 	case PIPE_CAP_POST_DEPTH_COVERAGE:
 	case PIPE_CAP_BINDLESS_TEXTURE:
 	case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 	case PIPE_CAP_QUERY_SO_OVERFLOW:
 	case PIPE_CAP_MEMOBJ:
+	case PIPE_CAP_LOAD_CONSTBUF:
 		return 0;
 
 	case PIPE_CAP_MAX_VIEWPORTS:
 		return 1;
 
 	case PIPE_CAP_SHAREABLE_SHADERS:
 	case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 	/* manage the variants for these ourself, to avoid breaking precompile: */
 	case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
 	case PIPE_CAP_VERTEX_COLOR_CLAMPED:
diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
index e700e294da..749dc9cb53 100644
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -306,20 +306,21 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
    case PIPE_CAP_TGSI_CLOCK:
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
 
    case PIPE_CAP_MAX_VIEWPORTS:
       return 1;
 
    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
       return 64;
 
    case PIPE_CAP_GLSL_FEATURE_LEVEL:
       return 120;
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index 32a405088f..e41e728645 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -352,20 +352,21 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
    }
    /* should only get here on unhandled cases */
    debug_printf("Unexpected PIPE_CAP %d query\n", param);
    return 0;
 }
 
 static int
 llvmpipe_get_shader_param(struct pipe_screen *screen,
                           enum pipe_shader_type shader,
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index 72f886c911..dc272ecafa 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -216,20 +216,21 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
       return 0x10de;
    case PIPE_CAP_DEVICE_ID: {
       uint64_t device_id;
       if (nouveau_getparam(dev, NOUVEAU_GETPARAM_PCI_DEVICE, &device_id)) {
          NOUVEAU_ERR("NOUVEAU_GETPARAM_PCI_DEVICE failed.\n");
          return -1;
       }
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 0f25cd5fed..fd100c60e8 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -268,20 +268,21 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
       return 0x10de;
    case PIPE_CAP_DEVICE_ID: {
       uint64_t device_id;
       if (nouveau_getparam(dev, NOUVEAU_GETPARAM_PCI_DEVICE, &device_id)) {
          NOUVEAU_ERR("NOUVEAU_GETPARAM_PCI_DEVICE failed.\n");
          return -1;
       }
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index f64ac2625d..219e0652a5 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -297,20 +297,21 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
    case PIPE_CAP_TGSI_CAN_READ_OUTPUTS:
    case PIPE_CAP_NATIVE_FENCE_FD:
    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
       return 0x10de;
    case PIPE_CAP_DEVICE_ID: {
       uint64_t device_id;
       if (nouveau_getparam(dev, NOUVEAU_GETPARAM_PCI_DEVICE, &device_id)) {
          NOUVEAU_ERR("NOUVEAU_GETPARAM_PCI_DEVICE failed.\n");
          return -1;
       }
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index ff68ffd7bc..3a449f0e91 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -238,20 +238,21 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
         case PIPE_CAP_TGSI_BALLOT:
         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
         case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
         case PIPE_CAP_POST_DEPTH_COVERAGE:
         case PIPE_CAP_BINDLESS_TEXTURE:
         case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
         case PIPE_CAP_QUERY_SO_OVERFLOW:
         case PIPE_CAP_MEMOBJ:
+        case PIPE_CAP_LOAD_CONSTBUF:
             return 0;
 
         /* SWTCL-only features. */
         case PIPE_CAP_PRIMITIVE_RESTART:
         case PIPE_CAP_USER_VERTEX_BUFFERS:
         case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
             return !r300screen->caps.has_tcl;
 
         /* HWTCL-only features / limitations. */
         case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index 023f1b4bd1..6832ded149 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -394,20 +394,21 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_TGSI_CLOCK:
 	case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 	case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
 	case PIPE_CAP_TGSI_BALLOT:
 	case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 	case PIPE_CAP_POST_DEPTH_COVERAGE:
 	case PIPE_CAP_BINDLESS_TEXTURE:
 	case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
 	case PIPE_CAP_QUERY_SO_OVERFLOW:
 	case PIPE_CAP_MEMOBJ:
+	case PIPE_CAP_LOAD_CONSTBUF:
 		return 0;
 
 	case PIPE_CAP_DOUBLES:
 		if (rscreen->b.family == CHIP_ARUBA ||
 		    rscreen->b.family == CHIP_CAYMAN ||
 		    rscreen->b.family == CHIP_CYPRESS ||
 		    rscreen->b.family == CHIP_HEMLOCK)
 			return 1;
 		return 0;
 
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index 80a77a8f1f..1d1db02c76 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -611,20 +611,21 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
 	case PIPE_CAP_VERTEXID_NOBASE:
 	case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
 	case PIPE_CAP_MAX_WINDOW_RECTANGLES:
 	case PIPE_CAP_NATIVE_FENCE_FD:
 	case PIPE_CAP_TGSI_FS_FBFETCH:
 	case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 	case PIPE_CAP_UMA:
 	case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 	case PIPE_CAP_POST_DEPTH_COVERAGE:
+	case PIPE_CAP_LOAD_CONSTBUF:
 		return 0;
 
 	case PIPE_CAP_QUERY_BUFFER_OBJECT:
 		return si_have_tgsi_compute(sscreen);
 
 	case PIPE_CAP_DRAW_PARAMETERS:
 	case PIPE_CAP_MULTI_DRAW_INDIRECT:
 	case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
 		return sscreen->has_draw_indirect_multi;
 
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 2988095eec..7e9d9e6592 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -303,20 +303,21 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
       return 4;
    }
    /* should only get here on unhandled cases */
    debug_printf("Unexpected PIPE_CAP %d query\n", param);
    return 0;
 }
 
 static int
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index ef3e07ea38..bc533cd7ae 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -446,20 +446,21 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
    }
 
    debug_printf("Unexpected PIPE_CAP_ query %u\n", param);
    return 0;
 }
 
 
 static int
 vgpu9_get_shader_param(struct pipe_screen *screen,
diff --git a/src/gallium/drivers/swr/swr_screen.cpp b/src/gallium/drivers/swr/swr_screen.cpp
index 3287bc6fee..68e59aa9fd 100644
--- a/src/gallium/drivers/swr/swr_screen.cpp
+++ b/src/gallium/drivers/swr/swr_screen.cpp
@@ -335,20 +335,21 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
       return 0xFFFFFFFF;
    case PIPE_CAP_DEVICE_ID:
       return 0xFFFFFFFF;
    case PIPE_CAP_ACCELERATED:
       return 0;
    case PIPE_CAP_VIDEO_MEMORY: {
       /* XXX: Do we want to return the full amount of system memory ? */
diff --git a/src/gallium/drivers/vc4/vc4_screen.c b/src/gallium/drivers/vc4/vc4_screen.c
index e206456f24..baf2456b19 100644
--- a/src/gallium/drivers/vc4/vc4_screen.c
+++ b/src/gallium/drivers/vc4/vc4_screen.c
@@ -257,20 +257,21 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
         case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
         case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
         case PIPE_CAP_TGSI_BALLOT:
         case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 	case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
         case PIPE_CAP_POST_DEPTH_COVERAGE:
         case PIPE_CAP_BINDLESS_TEXTURE:
         case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
         case PIPE_CAP_QUERY_SO_OVERFLOW:
 	case PIPE_CAP_MEMOBJ:
+        case PIPE_CAP_LOAD_CONSTBUF:
                 return 0;
 
                 /* Stream output. */
         case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
         case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
         case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
         case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
                 return 0;
 
diff --git a/src/gallium/drivers/virgl/virgl_screen.c b/src/gallium/drivers/virgl/virgl_screen.c
index 68d74adadd..3c1843e304 100644
--- a/src/gallium/drivers/virgl/virgl_screen.c
+++ b/src/gallium/drivers/virgl/virgl_screen.c
@@ -261,20 +261,21 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_DOUBLES:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
    case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_BINDLESS_TEXTURE:
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
    case PIPE_CAP_VENDOR_ID:
       return 0x1af4;
    case PIPE_CAP_DEVICE_ID:
       return 0x1010;
    case PIPE_CAP_ACCELERATED:
       return 1;
    case PIPE_CAP_UMA:
    case PIPE_CAP_VIDEO_MEMORY:
       return 0;
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 8609aefb98..898f458c6d 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -771,20 +771,21 @@ enum pipe_cap
    PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE,
    PIPE_CAP_TGSI_BALLOT,
    PIPE_CAP_TGSI_TES_LAYER_VIEWPORT,
    PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX,
    PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION,
    PIPE_CAP_POST_DEPTH_COVERAGE,
    PIPE_CAP_BINDLESS_TEXTURE,
    PIPE_CAP_NIR_SAMPLERS_AS_DEREF,
    PIPE_CAP_QUERY_SO_OVERFLOW,
    PIPE_CAP_MEMOBJ,
+   PIPE_CAP_LOAD_CONSTBUF,
 };
 
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_R600 (1 << 1)
 
 enum pipe_endian
 {
    PIPE_ENDIAN_LITTLE = 0,
    PIPE_ENDIAN_BIG = 1,
 #if defined(PIPE_ARCH_LITTLE_ENDIAN)
-- 
2.13.4



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