gallium: add PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET

src/gallium/auxiliary/util/u_screen.c

@@ -320,6 +320,7 @@ u_pipe_screen_get_param_defaults(struct pipe_screen *pscreen,
       return 1 << 27;
 
    case PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
 
    default:

src/gallium/docs/source/screen.rst

@@ -472,6 +472,9 @@ subpixel precision bias in bits during conservative rasterization.
 * ``PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS``: Maximum total number of
   atomic counter buffers. A value of 0 means the sum of all per-shader stage
   maximums (see ``PIPE_SHADER_CAP_MAX_HW_ATOMIC_COUNTER_BUFFERS``).
+* ``PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET: Maximum recommend memory size
+  for all active texture uploads combined. This is a performance hint.
+  0 means no limit.
 
 .. _pipe_capf:
 

src/gallium/drivers/etnaviv/etnaviv_screen.c

@@ -286,6 +286,7 @@ etna_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:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
 
    case PIPE_CAP_MAX_GS_INVOCATIONS:

src/gallium/drivers/i915/i915_screen.c

@@ -292,6 +292,7 @@ i915_get_param(struct pipe_screen *screen, enum pipe_cap cap)
    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_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
 
    case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:

src/gallium/drivers/llvmpipe/lp_screen.c

@@ -138,6 +138,7 @@ llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_TEXTURE_SWIZZLE:
       return 1;
    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
       return LP_MAX_TEXTURE_2D_LEVELS;

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

@@ -241,6 +241,7 @@ nv30_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
 
    case PIPE_CAP_MAX_GS_INVOCATIONS:

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

@@ -295,6 +295,7 @@ nv50_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
 
    case PIPE_CAP_MAX_GS_INVOCATIONS:

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

@@ -322,6 +322,7 @@ nvc0_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_CONSTBUF0_FLAGS:
    case PIPE_CAP_PACKED_UNIFORMS:
    case PIPE_CAP_CONSERVATIVE_RASTER_PRE_SNAP_POINTS_LINES:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
 
    case PIPE_CAP_VENDOR_ID:

src/gallium/drivers/r300/r300_screen.c

@@ -263,6 +263,7 @@ static int r300_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
         case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
         case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
         case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
+        case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
             return 0;
 
         case PIPE_CAP_MAX_GS_INVOCATIONS:

src/gallium/drivers/r600/r600_pipe.c

@@ -311,6 +311,10 @@ static int r600_get_param(struct pipe_screen* pscreen, enum pipe_cap param)
 	case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
 		return 1;
 
+	case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
+		/* Optimal number for good TexSubImage performance on Polaris10. */
+		return 64 * 1024 * 1024;
+
 	case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
 		return rscreen->b.info.drm_major == 2 && rscreen->b.info.drm_minor >= 43;
 

src/gallium/drivers/radeonsi/si_get.c

@@ -190,6 +190,10 @@ static int si_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
 				return 450;
 		return 420;
 
+	case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
+		/* Optimal number for good TexSubImage performance on Polaris10. */
+		return 64 * 1024 * 1024;
+
 	case PIPE_CAP_MAX_TEXTURE_BUFFER_SIZE:
 	case PIPE_CAP_MAX_SHADER_BUFFER_SIZE:
 		return MIN2(sscreen->info.max_alloc_size, INT_MAX);

src/gallium/drivers/softpipe/sp_screen.c

@@ -92,6 +92,7 @@ softpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_TEXTURE_SWIZZLE:
       return 1;
    case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
    case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
       return SP_MAX_TEXTURE_2D_LEVELS;

src/gallium/drivers/svga/svga_screen.c

@@ -392,6 +392,7 @@ svga_get_param(struct pipe_screen *screen, 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_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
       return 64;

src/gallium/drivers/swr/swr_screen.cpp

@@ -363,6 +363,7 @@ swr_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;

src/gallium/drivers/virgl/virgl_screen.c

@@ -324,6 +324,7 @@ virgl_get_param(struct pipe_screen *screen, enum pipe_cap param)
    case PIPE_CAP_CONSERVATIVE_RASTER_POST_DEPTH_COVERAGE:
    case PIPE_CAP_MAX_CONSERVATIVE_RASTER_SUBPIXEL_PRECISION_BIAS:
    case PIPE_CAP_PROGRAMMABLE_SAMPLE_LOCATIONS:
+   case PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET:
       return 0;
    case PIPE_CAP_MAX_GS_INVOCATIONS:
       return 32;

src/gallium/include/pipe/p_defines.h

@@ -823,6 +823,7 @@ enum pipe_cap
    PIPE_CAP_MAX_COMBINED_SHADER_BUFFERS,
    PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTERS,
    PIPE_CAP_MAX_COMBINED_HW_ATOMIC_COUNTER_BUFFERS,
+   PIPE_CAP_MAX_TEXTURE_UPLOAD_MEMORY_BUDGET,
 };
 
 /**