broadcom: Add V3D 3.3 gallium driver called "vc5", for BCM7268.

V3D 3.3 is a continuation of the 3D implementation in VC4 (v2.1 and v2.6).
V3D 3.3 introduces an MMU (no more CMA allocations) and support for
GLES3.1.  This driver is not currently conformant, though that will be a
target as soon as possible.

V3D 3.x parts use a new texture tiling layout common across many Broadcom
graphics parts including and the HVS scanout engine.  It also massively
changes the QPU instructions, introducing a common physical register file
(no more A/B split) and half-float instructions, while removing the 4x8
unorm instructions in favor of half-float for talking to fixed function
interfaces.  Because so much has changed, vc5 is implemented in a separate
gallium driver, using only the XML code-generation support from vc4.

v2: Fix tile layout for 64bpp textures.  Fix texture swizzling for 32-bit
    returns.  Fix up a bit of MRT setup.  Sync the simulator to kernel
    behavior a bit more.  Improve uniform debugging code.  Rebase on
    QIR->VIR rename.  Move texture state mostly to the CSOs.  Improve
    cache flushing on the simulator.  Fix program deletion
    use-after-frees.

Acked-by: Dave Airlie <[email protected]> (uabi plan)
Acked-by: Daniel Vetter <[email protected]> (uabi plan)

1 files changed, 620 insertions, 0 deletions

diff --git a/src/gallium/drivers/vc5/vc5_screen.c b/src/gallium/drivers/vc5/vc5_screen.c
new file mode 100644
index 00000000000..d3c9f0962e3
--- /dev/null
+++ b/src/gallium/drivers/vc5/vc5_screen.c
@@ -0,0 +1,620 @@
+/*
+ * Copyright © 2014-2017 Broadcom
+ * Copyright (C) 2012 Rob Clark <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ */
+
+#include "os/os_misc.h"
+#include "pipe/p_defines.h"
+#include "pipe/p_screen.h"
+#include "pipe/p_state.h"
+
+#include "util/u_debug.h"
+#include "util/u_memory.h"
+#include "util/u_format.h"
+#include "util/u_hash_table.h"
+#include "util/ralloc.h"
+
+#include <xf86drm.h>
+#include "vc5_drm.h"
+#include "vc5_screen.h"
+#include "vc5_context.h"
+#include "vc5_resource.h"
+#include "compiler/v3d_compiler.h"
+
+static const char *
+vc5_screen_get_name(struct pipe_screen *pscreen)
+{
+        struct vc5_screen *screen = vc5_screen(pscreen);
+
+        if (!screen->name) {
+                screen->name = ralloc_asprintf(screen,
+                                               "VC5 V3D %d.%d",
+                                               screen->devinfo.ver / 10,
+                                               screen->devinfo.ver % 10);
+        }
+
+        return screen->name;
+}
+
+static const char *
+vc5_screen_get_vendor(struct pipe_screen *pscreen)
+{
+        return "Broadcom";
+}
+
+static void
+vc5_screen_destroy(struct pipe_screen *pscreen)
+{
+        struct vc5_screen *screen = vc5_screen(pscreen);
+
+        util_hash_table_destroy(screen->bo_handles);
+        vc5_bufmgr_destroy(pscreen);
+        slab_destroy_parent(&screen->transfer_pool);
+
+        if (using_vc5_simulator)
+                vc5_simulator_destroy(screen);
+
+        v3d_compiler_free(screen->compiler);
+
+        close(screen->fd);
+        ralloc_free(pscreen);
+}
+
+static int
+vc5_screen_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
+{
+        switch (param) {
+                /* Supported features (boolean caps). */
+        case PIPE_CAP_VERTEX_COLOR_CLAMPED:
+        case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
+        case PIPE_CAP_FRAGMENT_COLOR_CLAMPED:
+        case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
+        case PIPE_CAP_NPOT_TEXTURES:
+        case PIPE_CAP_SHAREABLE_SHADERS:
+        case PIPE_CAP_USER_CONSTANT_BUFFERS:
+        case PIPE_CAP_TEXTURE_SHADOW_MAP:
+        case PIPE_CAP_BLEND_EQUATION_SEPARATE:
+        case PIPE_CAP_TWO_SIDED_STENCIL:
+        case PIPE_CAP_TEXTURE_MULTISAMPLE:
+        case PIPE_CAP_TEXTURE_SWIZZLE:
+        case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
+        case PIPE_CAP_TGSI_INSTANCEID:
+        case PIPE_CAP_SM3:
+        case PIPE_CAP_INDEP_BLEND_ENABLE: /* XXX */
+        case PIPE_CAP_TEXTURE_QUERY_LOD:
+        case PIPE_CAP_PRIMITIVE_RESTART:
+        case PIPE_CAP_GLSL_OPTIMIZE_CONSERVATIVELY:
+        case PIPE_CAP_OCCLUSION_QUERY:
+        case PIPE_CAP_POINT_SPRITE:
+        case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
+        case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
+        case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
+        case PIPE_CAP_COMPUTE:
+        case PIPE_CAP_DRAW_INDIRECT:
+                return 1;
+
+        case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
+                return 256;
+
+        case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
+                return 4;
+
+        case PIPE_CAP_GLSL_FEATURE_LEVEL:
+                return 400;
+
+        case PIPE_CAP_MAX_VIEWPORTS:
+                return 1;
+
+        case PIPE_CAP_TGSI_FS_COORD_ORIGIN_UPPER_LEFT:
+        case PIPE_CAP_TGSI_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
+                return 1;
+
+        case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
+        case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
+                return 1;
+
+
+                /* Stream output. */
+        case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
+                return 4;
+        case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
+        case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
+                return 64;
+
+        case PIPE_CAP_MIN_TEXEL_OFFSET:
+        case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
+                return -8;
+        case PIPE_CAP_MAX_TEXEL_OFFSET:
+        case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
+                return 7;
+
+                /* Unsupported features. */
+        case PIPE_CAP_ANISOTROPIC_FILTER:
+        case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
+        case PIPE_CAP_BUFFER_SAMPLER_VIEW_RGBA_ONLY:
+        case PIPE_CAP_CUBE_MAP_ARRAY:
+        case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
+        case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
+        case PIPE_CAP_SEAMLESS_CUBE_MAP:
+        case PIPE_CAP_QUADS_FOLLOW_PROVOKING_VERTEX_CONVENTION:
+        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_START_INSTANCE:
+        case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
+        case PIPE_CAP_SHADER_STENCIL_EXPORT:
+        case PIPE_CAP_TGSI_TEXCOORD:
+        case PIPE_CAP_PREFER_BLIT_BASED_TEXTURE_TRANSFER:
+        case PIPE_CAP_CONDITIONAL_RENDER:
+        case PIPE_CAP_TEXTURE_BARRIER:
+        case PIPE_CAP_INDEP_BLEND_FUNC:
+        case PIPE_CAP_DEPTH_CLIP_DISABLE:
+        case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
+        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_USER_VERTEX_BUFFERS:
+        case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
+        case PIPE_CAP_TEXTURE_BORDER_COLOR_QUIRK:
+        case PIPE_CAP_TGSI_VS_LAYER_VIEWPORT:
+        case PIPE_CAP_TGSI_TES_LAYER_VIEWPORT:
+        case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
+        case PIPE_CAP_TEXTURE_GATHER_SM5:
+        case PIPE_CAP_FAKE_SW_MSAA:
+        case PIPE_CAP_SAMPLE_SHADING:
+        case PIPE_CAP_TEXTURE_GATHER_OFFSETS:
+        case PIPE_CAP_TGSI_VS_WINDOW_SPACE_POSITION:
+        case PIPE_CAP_MAX_VERTEX_STREAMS:
+        case PIPE_CAP_MULTI_DRAW_INDIRECT:
+        case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
+        case PIPE_CAP_TGSI_FS_FINE_DERIVATIVE:
+        case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
+        case PIPE_CAP_SAMPLER_VIEW_TARGET:
+        case PIPE_CAP_CLIP_HALFZ:
+        case PIPE_CAP_VERTEXID_NOBASE:
+        case PIPE_CAP_POLYGON_OFFSET_CLAMP:
+        case PIPE_CAP_MULTISAMPLE_Z_RESOLVE:
+        case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
+        case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
+        case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
+        case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
+        case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
+        case PIPE_CAP_DEPTH_BOUNDS_TEST:
+        case PIPE_CAP_TGSI_TXQS:
+        case PIPE_CAP_FORCE_PERSAMPLE_INTERP:
+        case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
+        case PIPE_CAP_CLEAR_TEXTURE:
+        case PIPE_CAP_DRAW_PARAMETERS:
+        case PIPE_CAP_TGSI_PACK_HALF_FLOAT:
+        case PIPE_CAP_TGSI_FS_POSITION_IS_SYSVAL:
+        case PIPE_CAP_TGSI_FS_FACE_IS_INTEGER_SYSVAL:
+        case PIPE_CAP_INVALIDATE_BUFFER:
+        case PIPE_CAP_GENERATE_MIPMAP:
+        case PIPE_CAP_STRING_MARKER:
+        case PIPE_CAP_SURFACE_REINTERPRET_BLOCKS:
+        case PIPE_CAP_QUERY_BUFFER_OBJECT:
+        case PIPE_CAP_QUERY_MEMORY_INFO:
+        case PIPE_CAP_PCI_GROUP:
+        case PIPE_CAP_PCI_BUS:
+        case PIPE_CAP_PCI_DEVICE:
+        case PIPE_CAP_PCI_FUNCTION:
+        case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
+        case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
+        case PIPE_CAP_CULL_DISTANCE:
+        case PIPE_CAP_PRIMITIVE_RESTART_FOR_PATCHES:
+        case PIPE_CAP_TGSI_VOTE:
+        case PIPE_CAP_MAX_WINDOW_RECTANGLES:
+        case PIPE_CAP_POLYGON_OFFSET_UNITS_UNSCALED:
+        case PIPE_CAP_VIEWPORT_SUBPIXEL_BITS:
+        case PIPE_CAP_TGSI_ARRAY_COMPONENTS:
+        case PIPE_CAP_TGSI_FS_FBFETCH:
+        case PIPE_CAP_INT64:
+        case PIPE_CAP_INT64_DIVMOD:
+        case PIPE_CAP_DOUBLES:
+        case PIPE_CAP_BINDLESS_TEXTURE:
+        case PIPE_CAP_POST_DEPTH_COVERAGE:
+        case PIPE_CAP_CAN_BIND_CONST_BUFFER_AS_VERTEX:
+        case PIPE_CAP_TGSI_BALLOT:
+        case PIPE_CAP_SPARSE_BUFFER_PAGE_SIZE:
+        case PIPE_CAP_POLYGON_MODE_FILL_RECTANGLE:
+        case PIPE_CAP_TGSI_CLOCK:
+        case PIPE_CAP_TGSI_TEX_TXF_LZ:
+        case PIPE_CAP_NATIVE_FENCE_FD:
+        case PIPE_CAP_TGSI_MUL_ZERO_WINS:
+        case PIPE_CAP_NIR_SAMPLERS_AS_DEREF:
+        case PIPE_CAP_QUERY_SO_OVERFLOW:
+        case PIPE_CAP_MEMOBJ:
+        case PIPE_CAP_LOAD_CONSTBUF:
+        case PIPE_CAP_TILE_RASTER_ORDER:
+                return 0;
+
+                /* Geometry shader output, unsupported. */
+        case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
+        case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
+                return 0;
+
+                /* Texturing. */
+        case PIPE_CAP_MAX_TEXTURE_2D_LEVELS:
+        case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
+                return VC5_MAX_MIP_LEVELS;
+        case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
+                return 256;
+        case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
+                return 2048;
+
+                /* Render targets. */
+        case PIPE_CAP_MAX_RENDER_TARGETS:
+                return 4;
+
+                /* Queries. */
+        case PIPE_CAP_QUERY_TIME_ELAPSED:
+        case PIPE_CAP_QUERY_TIMESTAMP:
+                return 0;
+
+        case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
+                return 2048;
+
+        case PIPE_CAP_ENDIANNESS:
+                return PIPE_ENDIAN_LITTLE;
+
+        case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
+                return 64;
+
+        case PIPE_CAP_VENDOR_ID:
+                return 0x14E4;
+        case PIPE_CAP_DEVICE_ID:
+                return 0xFFFFFFFF;
+        case PIPE_CAP_ACCELERATED:
+                return 1;
+        case PIPE_CAP_VIDEO_MEMORY: {
+                uint64_t system_memory;
+
+                if (!os_get_total_physical_memory(&system_memory))
+                        return 0;
+
+                return (int)(system_memory >> 20);
+        }
+        case PIPE_CAP_UMA:
+                return 1;
+
+        default:
+                fprintf(stderr, "unknown param %d\n", param);
+                return 0;
+        }
+}
+
+static float
+vc5_screen_get_paramf(struct pipe_screen *pscreen, enum pipe_capf param)
+{
+        switch (param) {
+        case PIPE_CAPF_MAX_LINE_WIDTH:
+        case PIPE_CAPF_MAX_LINE_WIDTH_AA:
+                return 32;
+
+        case PIPE_CAPF_MAX_POINT_WIDTH:
+        case PIPE_CAPF_MAX_POINT_WIDTH_AA:
+                return 512.0f;
+
+        case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
+                return 0.0f;
+        case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
+                return 0.0f;
+        case PIPE_CAPF_GUARD_BAND_LEFT:
+        case PIPE_CAPF_GUARD_BAND_TOP:
+        case PIPE_CAPF_GUARD_BAND_RIGHT:
+        case PIPE_CAPF_GUARD_BAND_BOTTOM:
+                return 0.0f;
+        default:
+                fprintf(stderr, "unknown paramf %d\n", param);
+                return 0;
+        }
+}
+
+static int
+vc5_screen_get_shader_param(struct pipe_screen *pscreen, unsigned shader,
+                           enum pipe_shader_cap param)
+{
+        if (shader != PIPE_SHADER_VERTEX &&
+            shader != PIPE_SHADER_FRAGMENT) {
+                return 0;
+        }
+
+        /* this is probably not totally correct.. but it's a start: */
+        switch (param) {
+        case PIPE_SHADER_CAP_MAX_INSTRUCTIONS:
+        case PIPE_SHADER_CAP_MAX_ALU_INSTRUCTIONS:
+        case PIPE_SHADER_CAP_MAX_TEX_INSTRUCTIONS:
+        case PIPE_SHADER_CAP_MAX_TEX_INDIRECTIONS:
+                return 16384;
+
+        case PIPE_SHADER_CAP_MAX_CONTROL_FLOW_DEPTH:
+                return UINT_MAX;
+
+        case PIPE_SHADER_CAP_MAX_INPUTS:
+                if (shader == PIPE_SHADER_FRAGMENT)
+                        return VC5_MAX_FS_INPUTS / 4;
+                else
+                        return 16;
+        case PIPE_SHADER_CAP_MAX_OUTPUTS:
+                return shader == PIPE_SHADER_FRAGMENT ? 4 : 8;
+        case PIPE_SHADER_CAP_MAX_TEMPS:
+                return 256; /* GL_MAX_PROGRAM_TEMPORARIES_ARB */
+        case PIPE_SHADER_CAP_MAX_CONST_BUFFER_SIZE:
+                return 16 * 1024 * sizeof(float);
+        case PIPE_SHADER_CAP_MAX_CONST_BUFFERS:
+                return 16;
+        case PIPE_SHADER_CAP_TGSI_CONT_SUPPORTED:
+                return 0;
+        case PIPE_SHADER_CAP_INDIRECT_INPUT_ADDR:
+        case PIPE_SHADER_CAP_INDIRECT_OUTPUT_ADDR:
+        case PIPE_SHADER_CAP_INDIRECT_TEMP_ADDR:
+                return 0;
+        case PIPE_SHADER_CAP_INDIRECT_CONST_ADDR:
+                return 1;
+        case PIPE_SHADER_CAP_SUBROUTINES:
+                return 0;
+        case PIPE_SHADER_CAP_INTEGERS:
+                return 1;
+        case PIPE_SHADER_CAP_FP16:
+        case PIPE_SHADER_CAP_TGSI_DROUND_SUPPORTED:
+        case PIPE_SHADER_CAP_TGSI_DFRACEXP_DLDEXP_SUPPORTED:
+        case PIPE_SHADER_CAP_TGSI_LDEXP_SUPPORTED:
+        case PIPE_SHADER_CAP_TGSI_FMA_SUPPORTED:
+        case PIPE_SHADER_CAP_TGSI_ANY_INOUT_DECL_RANGE:
+        case PIPE_SHADER_CAP_TGSI_SQRT_SUPPORTED:
+                return 0;
+        case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
+        case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
+        case PIPE_SHADER_CAP_MAX_SHADER_IMAGES:
+        case PIPE_SHADER_CAP_MAX_SHADER_BUFFERS:
+                return VC5_MAX_TEXTURE_SAMPLERS;
+        case PIPE_SHADER_CAP_PREFERRED_IR:
+                return PIPE_SHADER_IR_NIR;
+        case PIPE_SHADER_CAP_SUPPORTED_IRS:
+                return 0;
+        case PIPE_SHADER_CAP_MAX_UNROLL_ITERATIONS_HINT:
+                return 32;
+        case PIPE_SHADER_CAP_LOWER_IF_THRESHOLD:
+        case PIPE_SHADER_CAP_TGSI_SKIP_MERGE_REGISTERS:
+                return 0;
+        default:
+                fprintf(stderr, "unknown shader param %d\n", param);
+                return 0;
+        }
+        return 0;
+}
+
+static boolean
+vc5_screen_is_format_supported(struct pipe_screen *pscreen,
+                               enum pipe_format format,
+                               enum pipe_texture_target target,
+                               unsigned sample_count,
+                               unsigned usage)
+{
+        unsigned retval = 0;
+
+        if (sample_count > 1 && sample_count != VC5_MAX_SAMPLES)
+                return FALSE;
+
+        if ((target >= PIPE_MAX_TEXTURE_TYPES) ||
+            !util_format_is_supported(format, usage)) {
+                return FALSE;
+        }
+
+        if (usage & PIPE_BIND_VERTEX_BUFFER) {
+                switch (format) {
+                case PIPE_FORMAT_R32G32B32A32_FLOAT:
+                case PIPE_FORMAT_R32G32B32_FLOAT:
+                case PIPE_FORMAT_R32G32_FLOAT:
+                case PIPE_FORMAT_R32_FLOAT:
+                case PIPE_FORMAT_R32G32B32A32_SNORM:
+                case PIPE_FORMAT_R32G32B32_SNORM:
+                case PIPE_FORMAT_R32G32_SNORM:
+                case PIPE_FORMAT_R32_SNORM:
+                case PIPE_FORMAT_R32G32B32A32_SSCALED:
+                case PIPE_FORMAT_R32G32B32_SSCALED:
+                case PIPE_FORMAT_R32G32_SSCALED:
+                case PIPE_FORMAT_R32_SSCALED:
+                case PIPE_FORMAT_R16G16B16A16_UNORM:
+                case PIPE_FORMAT_R16G16B16_UNORM:
+                case PIPE_FORMAT_R16G16_UNORM:
+                case PIPE_FORMAT_R16_UNORM:
+                case PIPE_FORMAT_R16G16B16A16_SNORM:
+                case PIPE_FORMAT_R16G16B16_SNORM:
+                case PIPE_FORMAT_R16G16_SNORM:
+                case PIPE_FORMAT_R16_SNORM:
+                case PIPE_FORMAT_R16G16B16A16_USCALED:
+                case PIPE_FORMAT_R16G16B16_USCALED:
+                case PIPE_FORMAT_R16G16_USCALED:
+                case PIPE_FORMAT_R16_USCALED:
+                case PIPE_FORMAT_R16G16B16A16_SSCALED:
+                case PIPE_FORMAT_R16G16B16_SSCALED:
+                case PIPE_FORMAT_R16G16_SSCALED:
+                case PIPE_FORMAT_R16_SSCALED:
+                case PIPE_FORMAT_R8G8B8A8_UNORM:
+                case PIPE_FORMAT_R8G8B8_UNORM:
+                case PIPE_FORMAT_R8G8_UNORM:
+                case PIPE_FORMAT_R8_UNORM:
+                case PIPE_FORMAT_R8G8B8A8_SNORM:
+                case PIPE_FORMAT_R8G8B8_SNORM:
+                case PIPE_FORMAT_R8G8_SNORM:
+                case PIPE_FORMAT_R8_SNORM:
+                case PIPE_FORMAT_R8G8B8A8_USCALED:
+                case PIPE_FORMAT_R8G8B8_USCALED:
+                case PIPE_FORMAT_R8G8_USCALED:
+                case PIPE_FORMAT_R8_USCALED:
+                case PIPE_FORMAT_R8G8B8A8_SSCALED:
+                case PIPE_FORMAT_R8G8B8_SSCALED:
+                case PIPE_FORMAT_R8G8_SSCALED:
+                case PIPE_FORMAT_R8_SSCALED:
+                        retval |= PIPE_BIND_VERTEX_BUFFER;
+                        break;
+                default:
+                        break;
+                }
+        }
+
+        if ((usage & PIPE_BIND_RENDER_TARGET) &&
+            vc5_rt_format_supported(format)) {
+                retval |= PIPE_BIND_RENDER_TARGET;
+        }
+
+        if ((usage & PIPE_BIND_SAMPLER_VIEW) &&
+            vc5_tex_format_supported(format)) {
+                retval |= PIPE_BIND_SAMPLER_VIEW;
+        }
+
+        if ((usage & PIPE_BIND_DEPTH_STENCIL) &&
+            (format == PIPE_FORMAT_S8_UINT_Z24_UNORM ||
+             format == PIPE_FORMAT_X8Z24_UNORM ||
+             format == PIPE_FORMAT_Z16_UNORM ||
+             format == PIPE_FORMAT_Z32_FLOAT ||
+             format == PIPE_FORMAT_Z32_FLOAT_S8X24_UINT)) {
+                retval |= PIPE_BIND_DEPTH_STENCIL;
+        }
+
+        if ((usage & PIPE_BIND_INDEX_BUFFER) &&
+            (format == PIPE_FORMAT_I8_UINT ||
+             format == PIPE_FORMAT_I16_UINT ||
+             format == PIPE_FORMAT_I32_UINT)) {
+                retval |= PIPE_BIND_INDEX_BUFFER;
+        }
+
+#if 0
+        if (retval != usage) {
+                fprintf(stderr,
+                        "not supported: format=%s, target=%d, sample_count=%d, "
+                        "usage=0x%x, retval=0x%x\n", util_format_name(format),
+                        target, sample_count, usage, retval);
+        }
+#endif
+
+        return retval == usage;
+}
+
+#define PTR_TO_UINT(x) ((unsigned)((intptr_t)(x)))
+
+static unsigned handle_hash(void *key)
+{
+    return PTR_TO_UINT(key);
+}
+
+static int handle_compare(void *key1, void *key2)
+{
+    return PTR_TO_UINT(key1) != PTR_TO_UINT(key2);
+}
+
+static bool
+vc5_get_device_info(struct vc5_screen *screen)
+{
+        struct drm_vc5_get_param ident0 = {
+                .param = DRM_VC5_PARAM_V3D_CORE0_IDENT0,
+        };
+        struct drm_vc5_get_param ident1 = {
+                .param = DRM_VC5_PARAM_V3D_CORE0_IDENT1,
+        };
+        int ret;
+
+        ret = vc5_ioctl(screen->fd, DRM_IOCTL_VC5_GET_PARAM, &ident0);
+        if (ret != 0) {
+                fprintf(stderr, "Couldn't get V3D core IDENT0: %s\n",
+                        strerror(errno));
+                return false;
+        }
+        ret = vc5_ioctl(screen->fd, DRM_IOCTL_VC5_GET_PARAM, &ident1);
+        if (ret != 0) {
+                fprintf(stderr, "Couldn't get V3D core IDENT1: %s\n",
+                        strerror(errno));
+                return false;
+        }
+
+        uint32_t major = (ident0.value >> 24) & 0xff;
+        uint32_t minor = (ident1.value >> 0) & 0xf;
+        screen->devinfo.ver = major * 10 + minor;
+
+        if (screen->devinfo.ver != 33) {
+                fprintf(stderr,
+                        "V3D %d.%d not supported by this version of Mesa.\n",
+                        screen->devinfo.ver / 10,
+                        screen->devinfo.ver % 10);
+                return false;
+        }
+
+        return true;
+}
+
+static const void *
+vc5_screen_get_compiler_options(struct pipe_screen *pscreen,
+                                enum pipe_shader_ir ir, unsigned shader)
+{
+        return &v3d_nir_options;
+}
+
+struct pipe_screen *
+vc5_screen_create(int fd)
+{
+        struct vc5_screen *screen = rzalloc(NULL, struct vc5_screen);
+        struct pipe_screen *pscreen;
+
+        pscreen = &screen->base;
+
+        pscreen->destroy = vc5_screen_destroy;
+        pscreen->get_param = vc5_screen_get_param;
+        pscreen->get_paramf = vc5_screen_get_paramf;
+        pscreen->get_shader_param = vc5_screen_get_shader_param;
+        pscreen->context_create = vc5_context_create;
+        pscreen->is_format_supported = vc5_screen_is_format_supported;
+
+        screen->fd = fd;
+        list_inithead(&screen->bo_cache.time_list);
+        (void)mtx_init(&screen->bo_handles_mutex, mtx_plain);
+        screen->bo_handles = util_hash_table_create(handle_hash, handle_compare);
+
+#if defined(USE_VC5_SIMULATOR)
+        vc5_simulator_init(screen);
+#endif
+
+        if (!vc5_get_device_info(screen))
+                goto fail;
+
+        slab_create_parent(&screen->transfer_pool, sizeof(struct vc5_transfer), 16);
+
+        vc5_fence_init(screen);
+
+        v3d_process_debug_variable();
+
+        vc5_resource_screen_init(pscreen);
+
+        screen->compiler = v3d_compiler_init(&screen->devinfo);
+
+        pscreen->get_name = vc5_screen_get_name;
+        pscreen->get_vendor = vc5_screen_get_vendor;
+        pscreen->get_device_vendor = vc5_screen_get_vendor;
+        pscreen->get_compiler_options = vc5_screen_get_compiler_options;
+
+        return pscreen;
+
+fail:
+        close(fd);
+        ralloc_free(pscreen);
+        return NULL;
+}