From: Marek Olšák <marek.ol...@amd.com>

---
 src/gallium/docs/source/screen.rst               | 2 ++
 src/gallium/drivers/etnaviv/etnaviv_screen.c     | 3 +++
 src/gallium/drivers/freedreno/freedreno_screen.c | 3 +++
 src/gallium/drivers/i915/i915_screen.c           | 3 +++
 src/gallium/drivers/llvmpipe/lp_screen.c         | 2 ++
 src/gallium/drivers/nouveau/nv30/nv30_screen.c   | 2 ++
 src/gallium/drivers/nouveau/nv50/nv50_screen.c   | 2 ++
 src/gallium/drivers/nouveau/nvc0/nvc0_screen.c   | 2 ++
 src/gallium/drivers/r300/r300_screen.c           | 2 ++
 src/gallium/drivers/r600/r600_pipe.c             | 2 ++
 src/gallium/drivers/radeonsi/si_get.c            | 1 +
 src/gallium/drivers/softpipe/sp_screen.c         | 2 ++
 src/gallium/drivers/svga/svga_screen.c           | 2 ++
 src/gallium/drivers/swr/swr_screen.cpp           | 2 ++
 src/gallium/drivers/v3d/v3d_screen.c             | 2 ++
 src/gallium/drivers/vc4/vc4_screen.c             | 2 ++
 src/gallium/drivers/virgl/virgl_screen.c         | 2 ++
 src/gallium/include/pipe/p_defines.h             | 1 +
 src/mesa/state_tracker/st_extensions.c           | 3 ++-
 19 files changed, 39 insertions(+), 1 deletion(-)

diff --git a/src/gallium/docs/source/screen.rst 
b/src/gallium/docs/source/screen.rst
index a4d71b3a849..6caa7d5f351 100644
--- a/src/gallium/docs/source/screen.rst
+++ b/src/gallium/docs/source/screen.rst
@@ -447,20 +447,22 @@ PIPE_CONSERVATIVE_RASTER_PRE_SNAP mode is supported for 
triangles.
 PIPE_CONSERVATIVE_RASTER_PRE_SNAP mode is supported for points and lines.
 * ``PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE``: Whether 
PIPE_CAP_POST_DEPTH_COVERAGE
 works with conservative rasterization.
 * ``PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS``: The maximum
 subpixel precision bias in bits during conservative rasterization.
 * ``PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS``: True is the driver supports
   programmable sample location through ```get_sample_pixel_grid``` and
   ```set_sample_locations```.
 * ``PIPE_CAP_MAX_GS_INVOCATIONS``: Maximum supported value of
   TGSI_PROPERTY_GS_INVOCATIONS.
+* ``PIPE_CAP_MAX_SHADER_BUFFER_SIZE``: Maximum supported size for binding
+  with set_shader_buffers.
 
 .. _pipe_capf:
 
 PIPE_CAPF_*
 ^^^^^^^^^^^^^^^^
 
 The floating-point capabilities are:
 
 * ``PIPE_CAPF_MAX_LINE_WIDTH``: The maximum width of a regular line.
 * ``PIPE_CAPF_MAX_LINE_WIDTH_AA``: The maximum width of a smoothed line.
diff --git a/src/gallium/drivers/etnaviv/etnaviv_screen.c 
b/src/gallium/drivers/etnaviv/etnaviv_screen.c
index e8bc6a5cae8..03449778c70 100644
--- a/src/gallium/drivers/etnaviv/etnaviv_screen.c
+++ b/src/gallium/drivers/etnaviv/etnaviv_screen.c
@@ -281,20 +281,23 @@ etna_screen_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PACKED_UNIFORMS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
 
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
 
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
+
    /* 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. */
    case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
    case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c 
b/src/gallium/drivers/freedreno/freedreno_screen.c
index 378640364d0..53e5c346403 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -364,20 +364,23 @@ fd_screen_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
        case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
        case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
        case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
        case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
        case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
                return 0;
 
        case PIPE_CAP_MAX_GS_INVOCATIONS:
                return 32;
 
+       case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+                return 1 << 27;
+
        case PIPE_CAP_CONTEXT_PRIORITY_MASK:
                return screen->priority_mask;
 
        case PIPE_CAP_DRAW_INDIRECT:
                if (is_a4xx(screen) || is_a5xx(screen))
                        return 1;
                return 0;
 
        case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
                if (is_a4xx(screen) || is_a5xx(screen))
diff --git a/src/gallium/drivers/i915/i915_screen.c 
b/src/gallium/drivers/i915/i915_screen.c
index 6b850064019..fcca8b99813 100644
--- a/src/gallium/drivers/i915/i915_screen.c
+++ b/src/gallium/drivers/i915/i915_screen.c
@@ -333,20 +333,23 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap 
cap)
    case PIPE_CAP_CONTEXT_PRIORITY_MASK:
    case PIPE_CAP_FENCE_SIGNAL:
    case PIPE_CAP_CONSTBUF0_FLAGS:
    case PIPE_CAP_PACKED_UNIFORMS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
 
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
 
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
+
    case PIPE_CAP_MAX_VIEWPORTS:
       return 1;
 
    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
       return 64;
 
    case PIPE_CAP_GLSL_FEATURE_LEVEL:
    case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
       return 120;
 
diff --git a/src/gallium/drivers/llvmpipe/lp_screen.c 
b/src/gallium/drivers/llvmpipe/lp_screen.c
index 1181f1c0a6e..d0f3ce9aeb8 100644
--- a/src/gallium/drivers/llvmpipe/lp_screen.c
+++ b/src/gallium/drivers/llvmpipe/lp_screen.c
@@ -368,20 +368,22 @@ llvmpipe_get_param(struct pipe_screen *screen, enum 
pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
    }
    /* 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,
                           enum pipe_shader_cap param)
diff --git a/src/gallium/drivers/nouveau/nv30/nv30_screen.c 
b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
index fc89bfbc1b2..613d7161533 100644
--- a/src/gallium/drivers/nouveau/nv30/nv30_screen.c
+++ b/src/gallium/drivers/nouveau/nv30/nv30_screen.c
@@ -235,20 +235,22 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
 
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
    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;
       }
       return device_id;
    }
diff --git a/src/gallium/drivers/nouveau/nv50/nv50_screen.c 
b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
index 6f3fdf34951..cdd2771baa1 100644
--- a/src/gallium/drivers/nouveau/nv50/nv50_screen.c
+++ b/src/gallium/drivers/nouveau/nv50/nv50_screen.c
@@ -289,20 +289,22 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
 
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
    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;
       }
       return device_id;
    }
diff --git a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c 
b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
index 8c1cd878bd0..0c3ade35170 100644
--- a/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
+++ b/src/gallium/drivers/nouveau/nvc0/nvc0_screen.c
@@ -262,20 +262,22 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
    case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
    case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
    case PIPE_CAP_POST_DEPTH_COVERAGE:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return class_3d >= GM200_3D_CLASS;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
       return class_3d >= GP100_3D_CLASS;
    case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
    case PIPE_CAP_TGSI_BALLOT:
    case PIPE_CAP_BINDLESS_TEXTURE:
       return class_3d >= NVE4_3D_CLASS;
 
    /* unsupported caps */
    case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
    case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
diff --git a/src/gallium/drivers/r300/r300_screen.c 
b/src/gallium/drivers/r300/r300_screen.c
index 73e80f2dd4c..8477379a213 100644
--- a/src/gallium/drivers/r300/r300_screen.c
+++ b/src/gallium/drivers/r300/r300_screen.c
@@ -257,20 +257,22 @@ static int r300_get_param(struct pipe_screen* pscreen, 
enum pipe_cap param)
         case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
         case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
         case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
         case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
         case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
         case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
             return 0;
 
         case PIPE_CAP_MAX_GS_INVOCATIONS:
             return 32;
+       case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+            return 1 << 27;
 
         /* 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:
         case PIPE_CAP_VERTEX_BUFFER_STRIDE_4BYTE_ALIGNED_ONLY:
diff --git a/src/gallium/drivers/r600/r600_pipe.c 
b/src/gallium/drivers/r600/r600_pipe.c
index 69cfb8028a8..cf9324df35d 100644
--- a/src/gallium/drivers/r600/r600_pipe.c
+++ b/src/gallium/drivers/r600/r600_pipe.c
@@ -371,20 +371,22 @@ static int r600_get_param(struct pipe_screen* pscreen, 
enum pipe_cap param)
                return family >= CHIP_CEDAR && rscreen->b.info.drm_minor >= 41;
 
        case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
                return family >= CHIP_CEDAR ? 0 : 1;
 
        case PIPE_CAP_MAX_COMBINED_SHADER_OUTPUT_RESOURCES:
                return 8;
 
        case PIPE_CAP_MAX_GS_INVOCATIONS:
                return 32;
+       case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+               return 1 << 27;
 
        /* Unsupported features. */
        case PIPE_CAP_TGSI_FS_COORD_ORIGIN_LOWER_LEFT:
        case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_INTEGER:
        case PIPE_CAP_TGSI_CAN_COMPACT_CONSTANTS:
        case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
        case PIPE_CAP_VERTEX_COLOR_CLAMPED:
        case PIPE_CAP_USER_VERTEX_BUFFERS:
        case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
        case PIPE_CAP_VERTEXID_NOBASE:
diff --git a/src/gallium/drivers/radeonsi/si_get.c 
b/src/gallium/drivers/radeonsi/si_get.c
index 0d466eac644..b8ad84f3613 100644
--- a/src/gallium/drivers/radeonsi/si_get.c
+++ b/src/gallium/drivers/radeonsi/si_get.c
@@ -211,20 +211,21 @@ static int si_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
                return 4;
 
        case PIPE_CAP_GLSL_FEATURE_LEVEL:
        case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
                if (sscreen->info.has_indirect_compute_dispatch)
                        return param == PIPE_CAP_GLSL_FEATURE_LEVEL ?
                                450 : 440;
                return 420;
 
        case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
+       case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
                return MIN2(sscreen->info.max_alloc_size, INT_MAX);
 
        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:
                return !sscreen->info.has_unaligned_shader_loads;
 
        case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
                return sscreen->info.has_sparse_vm_mappings ?
                                RADEON_SPARSE_PAGE_SIZE : 0;
diff --git a/src/gallium/drivers/softpipe/sp_screen.c 
b/src/gallium/drivers/softpipe/sp_screen.c
index 1fe807d81f1..984efb810f4 100644
--- a/src/gallium/drivers/softpipe/sp_screen.c
+++ b/src/gallium/drivers/softpipe/sp_screen.c
@@ -320,20 +320,22 @@ softpipe_get_param(struct pipe_screen *screen, enum 
pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
    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
 softpipe_get_shader_param(struct pipe_screen *screen,
diff --git a/src/gallium/drivers/svga/svga_screen.c 
b/src/gallium/drivers/svga/svga_screen.c
index cee2ea07af7..3850bb072d5 100644
--- a/src/gallium/drivers/svga/svga_screen.c
+++ b/src/gallium/drivers/svga/svga_screen.c
@@ -466,20 +466,22 @@ svga_get_param(struct pipe_screen *screen, enum pipe_cap 
param)
    case PIPE_CAP_FRAMEBUFFER_MSAA_CONSTRAINTS:
    case PIPE_CAP_SIGNED_VERTEX_BUFFER_OFFSET:
    case PIPE_CAP_CONTEXT_PRIORITY_MASK:
    case PIPE_CAP_FENCE_SIGNAL:
    case PIPE_CAP_CONSTBUF0_FLAGS:
    case PIPE_CAP_PACKED_UNIFORMS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
    }
 
    debug_printf("Unexpected PIPE_CAP_ query %u\n", param);
    return 0;
 }
 
 
 static int
 vgpu9_get_shader_param(struct pipe_screen *screen,
                        enum pipe_shader_type shader,
diff --git a/src/gallium/drivers/swr/swr_screen.cpp 
b/src/gallium/drivers/swr/swr_screen.cpp
index f6d1f1c5f71..53275939b9e 100644
--- a/src/gallium/drivers/swr/swr_screen.cpp
+++ b/src/gallium/drivers/swr/swr_screen.cpp
@@ -357,20 +357,22 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap 
param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
 
    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 ? */
       uint64_t system_memory;
diff --git a/src/gallium/drivers/v3d/v3d_screen.c 
b/src/gallium/drivers/v3d/v3d_screen.c
index e54e9802ecf..03e0195a9f3 100644
--- a/src/gallium/drivers/v3d/v3d_screen.c
+++ b/src/gallium/drivers/v3d/v3d_screen.c
@@ -272,20 +272,22 @@ v3d_screen_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
         case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
         case PIPE_CAP_PACKED_UNIFORMS:
         case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
                 return 0;
 
                 /* Geometry shader output, unsupported. */
         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
        case PIPE_CAP_MAX_GS_INVOCATIONS:
                 return 0;
+       case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+               return 1 << 27;
 
                 /* Texturing. */
         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
                 return VC5_MAX_MIP_LEVELS;
         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
                 return 2048;
 
                 /* Render targets. */
diff --git a/src/gallium/drivers/vc4/vc4_screen.c 
b/src/gallium/drivers/vc4/vc4_screen.c
index 89ebc84477b..0a10d898fe1 100644
--- a/src/gallium/drivers/vc4/vc4_screen.c
+++ b/src/gallium/drivers/vc4/vc4_screen.c
@@ -308,20 +308,22 @@ vc4_screen_get_param(struct pipe_screen *pscreen, enum 
pipe_cap param)
         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;
 
                 /* Geometry shader output, unsupported. */
         case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
         case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
        case PIPE_CAP_MAX_GS_INVOCATIONS:
                 return 0;
+       case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+               return 1 << 27;
 
                 /* Texturing. */
         case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
         case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
                 return VC4_MAX_MIP_LEVELS;
         case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
                 /* Note: Not supported in hardware, just faking it. */
                 return 5;
         case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
                 return 0;
diff --git a/src/gallium/drivers/virgl/virgl_screen.c 
b/src/gallium/drivers/virgl/virgl_screen.c
index b841e2e6ced..28de5c1acfc 100644
--- a/src/gallium/drivers/virgl/virgl_screen.c
+++ b/src/gallium/drivers/virgl/virgl_screen.c
@@ -298,20 +298,22 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap 
param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
       return 0;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;
+   case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
+      return 1 << 27;
    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;
    case PIPE_CAP_NATIVE_FENCE_FD:
diff --git a/src/gallium/include/pipe/p_defines.h 
b/src/gallium/include/pipe/p_defines.h
index c008f9d66f2..f7ca1a97709 100644
--- a/src/gallium/include/pipe/p_defines.h
+++ b/src/gallium/include/pipe/p_defines.h
@@ -809,20 +809,21 @@ enum pipe_cap
    PIPE_CAP_CONSTBUF0_FLAGS,
    PIPE_CAP_PACKED_UNIFORMS,
    PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_TRIANGLES,
    PIPE_CAP_CONSERVATIVE_RASTER_POST_SNAP_POINTS_LINES,
    PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_TRIANGLES,
    PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES,
    PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS,
    PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE,
    PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS,
    PIPE_CAP_MAX_GS_INVOCATIONS,
+   PIPE_CAP_MAX_SHADER_BUFFER_SIZE,
 };
 
 /**
  * Possible bits for PIPE_CAP_CONTEXT_PRIORITY_MASK param, which should
  * return a bitmask of the supported priorities.  If the driver does not
  * support prioritized contexts, it can return 0.
  *
  * Note that these match __DRI2_RENDER_HAS_CONTEXT_PRIORITY_*
  */
 #define PIPE_CONTEXT_PRIORITY_LOW     (1 << 0)
diff --git a/src/mesa/state_tracker/st_extensions.c 
b/src/mesa/state_tracker/st_extensions.c
index 9bb1143fd29..9a6e5160435 100644
--- a/src/mesa/state_tracker/st_extensions.c
+++ b/src/mesa/state_tracker/st_extensions.c
@@ -461,21 +461,22 @@ void st_init_limits(struct pipe_screen *screen,
    c->MaxCombinedShaderOutputResources = c->MaxDrawBuffers;
    c->ShaderStorageBufferOffsetAlignment =
       screen->get_param(screen, PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT);
    if (c->ShaderStorageBufferOffsetAlignment) {
       /* for hw atomic counters leaves these at default for now */
       if (ssbo_atomic)
          c->MaxCombinedShaderStorageBlocks = c->MaxShaderStorageBufferBindings 
=
             c->MaxCombinedAtomicBuffers;
       c->MaxCombinedShaderOutputResources +=
          c->MaxCombinedShaderStorageBlocks;
-      c->MaxShaderStorageBlockSize = 1 << 27;
+      c->MaxShaderStorageBlockSize =
+         screen->get_param(screen, PIPE_CAP_MAX_SHADER_BUFFER_SIZE);
       extensions->ARB_shader_storage_buffer_object = GL_TRUE;
    }
 
    c->MaxCombinedImageUniforms =
          c->Program[MESA_SHADER_VERTEX].MaxImageUniforms +
          c->Program[MESA_SHADER_TESS_CTRL].MaxImageUniforms +
          c->Program[MESA_SHADER_TESS_EVAL].MaxImageUniforms +
          c->Program[MESA_SHADER_GEOMETRY].MaxImageUniforms +
          c->Program[MESA_SHADER_FRAGMENT].MaxImageUniforms;
    c->MaxCombinedShaderOutputResources += c->MaxCombinedImageUniforms;
-- 
2.17.1

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