[Mesa-dev] [PATCH 1/3] gallium: add PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION

Marek Olšák maraeo at gmail.com
Mon May 15 14:41:35 UTC 2017


From: Marek Olšák <marek.olsak at amd.com>

for skipping mapped-buffer checking in every GL draw call
---
 src/gallium/docs/source/screen.rst               | 1 +
 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, 17 insertions(+)

diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index 971dc1f..871669c 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -384,20 +384,21 @@ The integer capabilities:
 * ``PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE``: The page size of sparse buffers in
   bytes, or 0 if sparse buffers are not supported. The page size must be at
   most 64KB.
 * ``PIPE_CAP_TGSI_BALLOT``: Whether the BALLOT and READ_* opcodes as well as
   the SUBGROUP_* semantics are supported.
 * ``PIPE_CAP_TGSI_TES_LAYER_VIEWPORT``: Whether ``TGSI_SEMANTIC_LAYER`` and
   ``TGSI_SEMANTIC_VIEWPORT_INDEX`` are supported as tessellation evaluation
   shader outputs.
 * ``PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX``: Whether a buffer with just
   PIPE_BIND_CONSTANT_BUFFER can be legally passed to set_vertex_buffers.
+* ``PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION``: As the name says.
 
 
 .. _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 d8a970b..12993fb 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
@@ -248,20 +248,21 @@ etna_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_DOUBLES:
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    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_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+   case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
       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 cb03bdb..a00afd3 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -307,20 +307,21 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_DOUBLES:
 	case PIPE_CAP_INT64:
 	case PIPE_CAP_INT64_DIVMOD:
 	case PIPE_CAP_TGSI_TEX_TXF_LZ:
 	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_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+	case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 		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 ae0a495..1cf9441 100644
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -300,20 +300,21 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
    case PIPE_CAP_DOUBLES:
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    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:
       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 c43f85e..656de49 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -346,20 +346,21 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_NATIVE_FENCE_FD:
    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
    case PIPE_CAP_TGSI_FS_FBFETCH:
    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
    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_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+   case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
       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 b3cd2b6..e8d14bf 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -89,20 +89,21 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
    case PIPE_CAP_TGSI_TEXCOORD:
    case PIPE_CAP_USER_CONSTANT_BUFFERS:
    case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
    case PIPE_CAP_VERTEX_BUFFER_OFFSET_4BYTE_ALIGNED_ONLY:
    case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
    case PIPE_CAP_VERTEX_ELEMENT_SRC_OFFSET_4BYTE_ALIGNED_ONLY:
    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
+   case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
       return 1;
    /* nv35 capabilities */
    case PIPE_CAP_DEPTH_BOUNDS_TEST:
       return eng3d->oclass == NV35_3D_CLASS || eng3d->oclass >= NV40_3D_CLASS;
    /* nv4x capabilities */
    case PIPE_CAP_BLEND_EQUATION_SEPARATE:
    case PIPE_CAP_NPOT_TEXTURES:
    case PIPE_CAP_CONDITIONAL_RENDER:
    case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
    case PIPE_CAP_PRIMITIVE_RESTART:
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index c425b11..59afd14 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -194,20 +194,21 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_COMPUTE:
    case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
    case PIPE_CAP_INVALIDATE_BUFFER:
    case PIPE_CAP_STRING_MARKER:
    case PIPE_CAP_CULL_DISTANCE:
    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    case PIPE_CAP_TGSI_CLOCK:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+   case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
       return 1;
    case PIPE_CAP_SEAMLESS_CUBE_MAP:
       return 1; /* class_3d >= NVA0_3D_CLASS; */
    /* supported on nva0+ */
    case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
       return class_3d >= NVA0_3D_CLASS;
    /* supported on nva3+ */
    case PIPE_CAP_CUBE_MAP_ARRAY:
    case PIPE_CAP_INDEP_BLEND_FUNC:
    case PIPE_CAP_TEXTURE_QUERY_LOD:
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index d2a1292..e1d0d1c 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -243,20 +243,21 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_TGSI_VOTE:
    case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
    case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
    case PIPE_CAP_DOUBLES:
    case PIPE_CAP_INT64:
    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    case PIPE_CAP_TGSI_CLOCK:
    case PIPE_CAP_COMPUTE:
    case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+   case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
       return 1;
    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
       return (class_3d >= NVE4_3D_CLASS) ? 1 : 0;
    case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
       return nouveau_screen(pscreen)->vram_domain & NOUVEAU_BO_VRAM ? 1 : 0;
    case PIPE_CAP_TGSI_FS_FBFETCH:
       return class_3d >= NVE4_3D_CLASS; /* needs testing on fermi */
    case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index 9fa6bcd..3452d92 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -106,20 +106,21 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
         case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
         case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
         case PIPE_CAP_CONDITIONAL_RENDER:
         case PIPE_CAP_TEXTURE_BARRIER:
         case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
         case PIPE_CAP_USER_CONSTANT_BUFFERS:
         case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
         case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
         case PIPE_CAP_CLIP_HALFZ:
+        case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
             return 1;
 
         case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
             return R300_BUFFER_ALIGNMENT;
 
         case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
             return 16;
 
         case PIPE_CAP_GLSL_FEATURE_LEVEL:
             return 120;
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index e4aa886..fd01672 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -280,20 +280,21 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_TGSI_TXQS:
 	case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
 	case PIPE_CAP_INVALIDATE_BUFFER:
 	case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
 	case PIPE_CAP_QUERY_MEMORY_INFO:
 	case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
 	case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
 	case PIPE_CAP_CLEAR_TEXTURE:
 	case PIPE_CAP_TGSI_MUL_ZERO_WINS:
 	case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+	case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 		return 1;
 
 	case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 		return rscreen->b.info.drm_major == 2 && rscreen->b.info.drm_minor >= 43;
 
 	case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 		return !R600_BIG_ENDIAN && rscreen->b.info.has_userptr;
 
 	case PIPE_CAP_COMPUTE:
 		return rscreen->b.chip_class > R700;
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index c8dfd96..dd962e0 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -449,20 +449,21 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
 	case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
 	case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
 	case PIPE_CAP_DOUBLES:
 	case PIPE_CAP_TGSI_TEX_TXF_LZ:
 	case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
 	case PIPE_CAP_INT64:
 	case PIPE_CAP_INT64_DIVMOD:
 	case PIPE_CAP_TGSI_CLOCK:
 	case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+	case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
 		return 1;
 
 	case PIPE_CAP_TGSI_VOTE:
 		return HAVE_LLVM >= 0x0400;
 
 	case PIPE_CAP_TGSI_BALLOT:
 		return HAVE_LLVM >= 0x0500;
 
 	case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
 		return !SI_BIG_ENDIAN && sscreen->b.info.has_userptr;
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index 1719972..8789534 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -296,20 +296,21 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_NATIVE_FENCE_FD:
    case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
    case PIPE_CAP_TGSI_FS_FBFETCH:
    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
    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_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+   case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
       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 7ccb66e..b79d9e9 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -427,20 +427,21 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_DOUBLES:
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    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_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+   case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
       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 a584a0a..cdb8165 100644
--- a/src/gallium/drivers/swr/swr_screen.cpp
+++ b/src/gallium/drivers/swr/swr_screen.cpp
@@ -331,20 +331,21 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_TGSI_MUL_ZERO_WINS:
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    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_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+   case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
       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 0660a64..18b47ae 100644
--- a/src/gallium/drivers/vc4/vc4_screen.c
+++ b/src/gallium/drivers/vc4/vc4_screen.c
@@ -247,20 +247,21 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
         case PIPE_CAP_DOUBLES:
         case PIPE_CAP_INT64:
         case PIPE_CAP_INT64_DIVMOD:
         case PIPE_CAP_TGSI_TEX_TXF_LZ:
         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_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+	case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
                 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 0676d75..f1d41ba 100644
--- a/src/gallium/drivers/virgl/virgl_screen.c
+++ b/src/gallium/drivers/virgl/virgl_screen.c
@@ -255,20 +255,21 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_INT64:
    case PIPE_CAP_INT64_DIVMOD:
    case PIPE_CAP_TGSI_TEX_TXF_LZ:
    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_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:
       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 aafa4f8..769c94f 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -764,20 +764,21 @@ enum pipe_cap
    PIPE_CAP_DOUBLES,
    PIPE_CAP_INT64,
    PIPE_CAP_INT64_DIVMOD,
    PIPE_CAP_TGSI_TEX_TXF_LZ,
    PIPE_CAP_TGSI_CLOCK,
    PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE,
    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,
 };
 
 #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)
-- 
2.7.4



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