gallium: introduce PIPE_CAP_LOAD_CONSTBUF

Reviewed-by: Marek Olšák <marek.olsak@amd.com>

src/gallium/docs/source/screen.rst

@@ -404,6 +404,8 @@ The integer capabilities:
   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:

src/gallium/drivers/etnaviv/etnaviv_screen.c

@@ -263,6 +263,7 @@ etna_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    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. */

src/gallium/drivers/freedreno/freedreno_screen.c

@@ -324,6 +324,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	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:

src/gallium/drivers/i915/i915_screen.c

@@ -313,6 +313,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
    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:

src/gallium/drivers/llvmpipe/lp_screen.c

@@ -359,6 +359,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    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 */

src/gallium/drivers/nouveau/nv30/nv30_screen.c

@@ -223,6 +223,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    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:

src/gallium/drivers/nouveau/nv50/nv50_screen.c

@@ -275,6 +275,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    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:

src/gallium/drivers/nouveau/nvc0/nvc0_screen.c

@@ -304,6 +304,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    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:

src/gallium/drivers/r300/r300_screen.c

@@ -245,6 +245,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         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. */

src/gallium/drivers/r600/r600_pipe.c

@@ -401,6 +401,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	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:

src/gallium/drivers/radeonsi/si_pipe.c

@@ -575,6 +575,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	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:

src/gallium/drivers/softpipe/sp_screen.c

@@ -310,6 +310,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    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;

src/gallium/drivers/svga/svga_screen.c

@@ -453,6 +453,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
    case PIPE_CAP_QUERY_SO_OVERFLOW:
    case PIPE_CAP_MEMOBJ:
+   case PIPE_CAP_LOAD_CONSTBUF:
       return 0;
    }
 

src/gallium/drivers/swr/swr_screen.cpp

@@ -345,6 +345,7 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
    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:

src/gallium/drivers/vc4/vc4_screen.c

@@ -264,6 +264,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
         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. */

src/gallium/drivers/virgl/virgl_screen.c

@@ -268,6 +268,7 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
    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;

src/gallium/include/pipe/p_defines.h

@@ -775,6 +775,7 @@ enum pipe_cap
    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)