gallium: add cap for driver specified max combined shader resources.

Some hw (evergreen) has a limit on how many combined (images/buffers/mrts)
a fragment shader can access.

Reviewed-by: Ilia Mirkin <[email protected]>
Signed-off-by: Dave Airlie <[email protected]>

18 files changed, 20 insertions, 1 deletions

diff --git a/src/gallium/docs/source/screen.rst b/src/gallium/docs/source/screen.rst
index bc0db429b38..376b95e89dd 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -411,7 +411,9 @@ The integer capabilities:
 * ``PIPE_CAP_TILE_RASTER_ORDER``: Whether the driver supports
   GL_MESA_tile_raster_order, using the tile_raster_order_* fields in
   pipe_rasterizer_state.
-
+* ``PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES``: Limit on combined shader
+  output resources (images + buffers + fragment outputs). If 0 the state
+  tracker works it out.
 
 .. _pipe_capf:
 
diff --git a/src/gallium/drivers/etnaviv/etnaviv_screen.c b/src/gallium/drivers/etnaviv/etnaviv_screen.c
index 4f55c2a96f6..68973be5c75 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
@@ -266,6 +266,7 @@ etna_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
 
    /* Stream output. */
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index 4efd41f32b5..30b2dede118 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -327,6 +327,7 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_LOAD_CONSTBUF:
 	case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
 	case PIPE_CAP_TILE_RASTER_ORDER:
+	case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
 		return 0;
 
 	case PIPE_CAP_MAX_VIEWPORTS:
diff --git a/src/gallium/drivers/i915/i915_screen.c b/src/gallium/drivers/i915/i915_screen.c
index 8b9574e1415..d7bd8102c71 100644
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -319,6 +319,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
 
    case PIPE_CAP_MAX_VIEWPORTS:
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c b/src/gallium/drivers/llvmpipe/lp_screen.c
index bffc6b52792..fc113176871 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -362,6 +362,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
    }
    /* should only get here on unhandled cases */
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index fedd3c142fb..6ebce573ada 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -226,6 +226,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index d1e6e8b5eb5..2066cf3f6e1 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -278,6 +278,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index d49131c79e3..d62a5552536 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -307,6 +307,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/r300/r300_screen.c b/src/gallium/drivers/r300/r300_screen.c
index c0cf6e54468..a245c107481 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -248,6 +248,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         case PIPE_CAP_LOAD_CONSTBUF:
         case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
         case PIPE_CAP_TILE_RASTER_ORDER:
+        case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
             return 0;
 
         /* SWTCL-only features. */
diff --git a/src/gallium/drivers/r600/r600_pipe.c b/src/gallium/drivers/r600/r600_pipe.c
index ffcaa15ec9b..3648f7d14ee 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -404,6 +404,7 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_LOAD_CONSTBUF:
 	case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
 	case PIPE_CAP_TILE_RASTER_ORDER:
+	case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
 		return 0;
 
 	case PIPE_CAP_DOUBLES:
diff --git a/src/gallium/drivers/radeonsi/si_pipe.c b/src/gallium/drivers/radeonsi/si_pipe.c
index a6c3aa03d30..875aff655dd 100644
--- a/src/gallium/drivers/radeonsi/si_pipe.c
+++ b/src/gallium/drivers/radeonsi/si_pipe.c
@@ -589,6 +589,7 @@ static int si_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
 	case PIPE_CAP_POST_DEPTH_COVERAGE:
 	case PIPE_CAP_TILE_RASTER_ORDER:
+	case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
 		return 0;
 
 	case PIPE_CAP_NATIVE_FENCE_FD:
diff --git a/src/gallium/drivers/softpipe/sp_screen.c b/src/gallium/drivers/softpipe/sp_screen.c
index fe354b1c137..c50d644b51d 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -313,6 +313,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
    case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
       return 4;
diff --git a/src/gallium/drivers/svga/svga_screen.c b/src/gallium/drivers/svga/svga_screen.c
index 834a6a56c95..aede584610f 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -454,6 +454,7 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
    }
 
diff --git a/src/gallium/drivers/swr/swr_screen.cpp b/src/gallium/drivers/swr/swr_screen.cpp
index b21c35eec80..63d9f625e81 100644
--- a/src/gallium/drivers/swr/swr_screen.cpp
+++ b/src/gallium/drivers/swr/swr_screen.cpp
@@ -344,6 +344,7 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:
diff --git a/src/gallium/drivers/vc4/vc4_screen.c b/src/gallium/drivers/vc4/vc4_screen.c
index 9879a4db174..9ac678d5b97 100644
--- a/src/gallium/drivers/vc4/vc4_screen.c
+++ b/src/gallium/drivers/vc4/vc4_screen.c
@@ -286,6 +286,7 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 	case PIPE_CAP_MEMOBJ:
         case PIPE_CAP_LOAD_CONSTBUF:
 	case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
+	case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
                 return 0;
 
                 /* Stream output. */
diff --git a/src/gallium/drivers/vc5/vc5_screen.c b/src/gallium/drivers/vc5/vc5_screen.c
index 4fcfec0f29d..e8bcef0d8fe 100644
--- a/src/gallium/drivers/vc5/vc5_screen.c
+++ b/src/gallium/drivers/vc5/vc5_screen.c
@@ -246,6 +246,7 @@ vc5_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
         case PIPE_CAP_LOAD_CONSTBUF:
         case PIPE_CAP_TILE_RASTER_ORDER:
         case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
+        case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
                 return 0;
 
                 /* Geometry shader output, unsupported. */
diff --git a/src/gallium/drivers/virgl/virgl_screen.c b/src/gallium/drivers/virgl/virgl_screen.c
index 28023f81119..47e61aa81e9 100644
--- a/src/gallium/drivers/virgl/virgl_screen.c
+++ b/src/gallium/drivers/virgl/virgl_screen.c
@@ -271,6 +271,7 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_LOAD_CONSTBUF:
    case PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS:
    case PIPE_CAP_TILE_RASTER_ORDER:
+   case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
       return 0;
    case PIPE_CAP_VENDOR_ID:
       return 0x1af4;
diff --git a/src/gallium/include/pipe/p_defines.h b/src/gallium/include/pipe/p_defines.h
index 11af6c8d0d8..2db73c183d7 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -779,6 +779,7 @@ enum pipe_cap
    PIPE_CAP_LOAD_CONSTBUF,
    PIPE_CAP_TGSI_ANY_REG_AS_ADDRESS,
    PIPE_CAP_TILE_RASTER_ORDER,
+   PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES,
 };
 
 #define PIPE_QUIRK_TEXTURE_BORDER_COLOR_SWIZZLE_NV50 (1 << 0)