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mesa/src/gallium/drivers/llvmpipe/lp_screen.c

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/**************************************************************************
*
* Copyright 2008 VMware, Inc.
* All Rights Reserved.
*
* 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, sub license, 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 NON-INFRINGEMENT.
* IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS 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 "util/u_memory.h"
#include "util/u_math.h"
#include "util/u_cpu_detect.h"
#include "util/format/u_format.h"
#include "util/u_screen.h"
#include "util/u_string.h"
#include "util/format/u_format_s3tc.h"
#include "pipe/p_defines.h"
#include "pipe/p_screen.h"
#include "draw/draw_context.h"
#include "gallivm/lp_bld_type.h"
#include "gallivm/lp_bld_nir.h"
#include "util/disk_cache.h"
#include "util/os_misc.h"
#include "util/os_time.h"
#include "lp_texture.h"
#include "lp_fence.h"
#include "lp_jit.h"
#include "lp_screen.h"
#include "lp_context.h"
#include "lp_debug.h"
#include "lp_public.h"
#include "lp_limits.h"
#include "lp_rast.h"
#include "lp_cs_tpool.h"
#include "frontend/sw_winsys.h"
#include "nir.h"
#ifdef DEBUG
int LP_DEBUG = 0;
static const struct debug_named_value lp_debug_flags[] = {
{ "pipe", DEBUG_PIPE, NULL },
{ "tgsi", DEBUG_TGSI, NULL },
{ "tex", DEBUG_TEX, NULL },
{ "setup", DEBUG_SETUP, NULL },
{ "rast", DEBUG_RAST, NULL },
{ "query", DEBUG_QUERY, NULL },
{ "screen", DEBUG_SCREEN, NULL },
{ "counters", DEBUG_COUNTERS, NULL },
{ "scene", DEBUG_SCENE, NULL },
{ "fence", DEBUG_FENCE, NULL },
{ "no_fastpath", DEBUG_NO_FASTPATH, NULL },
{ "linear", DEBUG_LINEAR, NULL },
{ "linear2", DEBUG_LINEAR2, NULL },
{ "mem", DEBUG_MEM, NULL },
{ "fs", DEBUG_FS, NULL },
{ "cs", DEBUG_CS, NULL },
{ "tgsi_ir", DEBUG_TGSI_IR, NULL },
{ "cache_stats", DEBUG_CACHE_STATS, NULL },
{ "accurate_a0", DEBUG_ACCURATE_A0 },
DEBUG_NAMED_VALUE_END
};
#endif
int LP_PERF = 0;
static const struct debug_named_value lp_perf_flags[] = {
{ "texmem", PERF_TEX_MEM, NULL },
{ "no_mipmap", PERF_NO_MIPMAPS, NULL },
{ "no_linear", PERF_NO_LINEAR, NULL },
{ "no_mip_linear", PERF_NO_MIP_LINEAR, NULL },
{ "no_tex", PERF_NO_TEX, NULL },
{ "no_blend", PERF_NO_BLEND, NULL },
{ "no_depth", PERF_NO_DEPTH, NULL },
{ "no_alphatest", PERF_NO_ALPHATEST, NULL },
{ "no_rast_linear", PERF_NO_RAST_LINEAR, NULL },
{ "no_shade", PERF_NO_SHADE, NULL },
DEBUG_NAMED_VALUE_END
};
static const char *
llvmpipe_get_vendor(struct pipe_screen *screen)
{
return "Mesa/X.org";
}
static const char *
llvmpipe_get_name(struct pipe_screen *screen)
{
struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
return lscreen->renderer_string;
}
static int
llvmpipe_get_param(struct pipe_screen *screen, enum pipe_cap param)
{
switch (param) {
case PIPE_CAP_NPOT_TEXTURES:
case PIPE_CAP_MIXED_FRAMEBUFFER_SIZES:
case PIPE_CAP_MIXED_COLOR_DEPTH_BITS:
case PIPE_CAP_ANISOTROPIC_FILTER:
return 1;
case PIPE_CAP_FRAGMENT_SHADER_TEXTURE_LOD:
case PIPE_CAP_FRAGMENT_SHADER_DERIVATIVES:
return 1;
case PIPE_CAP_MAX_DUAL_SOURCE_RENDER_TARGETS:
return 1;
case PIPE_CAP_MAX_STREAM_OUTPUT_BUFFERS:
return PIPE_MAX_SO_BUFFERS;
case PIPE_CAP_POINT_SPRITE:
return 1;
case PIPE_CAP_MAX_RENDER_TARGETS:
return PIPE_MAX_COLOR_BUFS;
case PIPE_CAP_OCCLUSION_QUERY:
case PIPE_CAP_QUERY_TIMESTAMP:
case PIPE_CAP_QUERY_TIME_ELAPSED:
return 1;
case PIPE_CAP_QUERY_PIPELINE_STATISTICS:
return 1;
case PIPE_CAP_TEXTURE_MIRROR_CLAMP:
case PIPE_CAP_TEXTURE_MIRROR_CLAMP_TO_EDGE:
return 1;
case PIPE_CAP_TEXTURE_SWIZZLE:
case PIPE_CAP_TEXTURE_SHADOW_LOD:
return 1;
case PIPE_CAP_MAX_TEXTURE_2D_SIZE:
return 1 << (LP_MAX_TEXTURE_2D_LEVELS - 1);
case PIPE_CAP_MAX_TEXTURE_3D_LEVELS:
return LP_MAX_TEXTURE_3D_LEVELS;
case PIPE_CAP_MAX_TEXTURE_CUBE_LEVELS:
return LP_MAX_TEXTURE_CUBE_LEVELS;
case PIPE_CAP_MAX_TEXTURE_ARRAY_LAYERS:
return LP_MAX_TEXTURE_ARRAY_LAYERS;
case PIPE_CAP_BLEND_EQUATION_SEPARATE:
return 1;
case PIPE_CAP_INDEP_BLEND_ENABLE:
return 1;
case PIPE_CAP_INDEP_BLEND_FUNC:
return 1;
case PIPE_CAP_FS_COORD_ORIGIN_UPPER_LEFT:
case PIPE_CAP_FS_COORD_PIXEL_CENTER_INTEGER:
case PIPE_CAP_FS_COORD_PIXEL_CENTER_HALF_INTEGER:
return 1;
case PIPE_CAP_PRIMITIVE_RESTART:
case PIPE_CAP_PRIMITIVE_RESTART_FIXED_INDEX:
return 1;
case PIPE_CAP_DEPTH_CLIP_DISABLE:
return 1;
case PIPE_CAP_DEPTH_CLAMP_ENABLE:
return 1;
case PIPE_CAP_SHADER_STENCIL_EXPORT:
return 1;
case PIPE_CAP_VS_INSTANCEID:
case PIPE_CAP_VERTEX_ELEMENT_INSTANCE_DIVISOR:
case PIPE_CAP_START_INSTANCE:
case PIPE_CAP_MIXED_COLORBUFFER_FORMATS:
return 1;
case PIPE_CAP_SEAMLESS_CUBE_MAP:
case PIPE_CAP_SEAMLESS_CUBE_MAP_PER_TEXTURE:
return 1;
/* this is a lie could support arbitrary large offsets */
case PIPE_CAP_MIN_TEXTURE_GATHER_OFFSET:
case PIPE_CAP_MIN_TEXEL_OFFSET:
return -32;
case PIPE_CAP_MAX_TEXTURE_GATHER_OFFSET:
case PIPE_CAP_MAX_TEXEL_OFFSET:
return 31;
case PIPE_CAP_CONDITIONAL_RENDER:
case PIPE_CAP_TEXTURE_BARRIER:
return 1;
case PIPE_CAP_MAX_STREAM_OUTPUT_SEPARATE_COMPONENTS:
case PIPE_CAP_MAX_STREAM_OUTPUT_INTERLEAVED_COMPONENTS:
return 16*4;
case PIPE_CAP_MAX_GEOMETRY_OUTPUT_VERTICES:
case PIPE_CAP_MAX_GEOMETRY_TOTAL_OUTPUT_COMPONENTS:
return 1024;
case PIPE_CAP_MAX_VERTEX_STREAMS: {
struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
return lscreen->use_tgsi ? 1 : 4;
}
case PIPE_CAP_MAX_VERTEX_ATTRIB_STRIDE:
return 2048;
case PIPE_CAP_STREAM_OUTPUT_PAUSE_RESUME:
case PIPE_CAP_STREAM_OUTPUT_INTERLEAVE_BUFFERS:
case PIPE_CAP_VERTEX_COLOR_UNCLAMPED:
case PIPE_CAP_VERTEX_COLOR_CLAMPED:
return 1;
case PIPE_CAP_GLSL_FEATURE_LEVEL_COMPATIBILITY:
case PIPE_CAP_GLSL_FEATURE_LEVEL: {
struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
return lscreen->use_tgsi ? 330 : 450;
}
case PIPE_CAP_COMPUTE:
return GALLIVM_COROUTINES;
case PIPE_CAP_USER_VERTEX_BUFFERS:
return 1;
case PIPE_CAP_TGSI_TEXCOORD:
case PIPE_CAP_DRAW_INDIRECT:
return 1;
case PIPE_CAP_CUBE_MAP_ARRAY:
return 1;
case PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT:
return 16;
case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
return 64;
case PIPE_CAP_TEXTURE_BUFFER_OBJECTS:
return 1;
/* Adressing that many 64bpp texels fits in an i32 so this is a reasonable value */
case PIPE_CAP_MAX_TEXEL_BUFFER_ELEMENTS_UINT:
return 134217728;
case PIPE_CAP_TEXTURE_BUFFER_OFFSET_ALIGNMENT:
return 16;
case PIPE_CAP_TEXTURE_TRANSFER_MODES:
return 0;
case PIPE_CAP_MAX_VIEWPORTS:
return PIPE_MAX_VIEWPORTS;
case PIPE_CAP_ENDIANNESS:
return PIPE_ENDIAN_NATIVE;
case PIPE_CAP_TES_LAYER_VIEWPORT:
case PIPE_CAP_VS_LAYER_VIEWPORT:
return 1;
case PIPE_CAP_BUFFER_MAP_PERSISTENT_COHERENT:
return 1;
case PIPE_CAP_MAX_TEXTURE_GATHER_COMPONENTS:
return 4;
case PIPE_CAP_VS_WINDOW_SPACE_POSITION:
return 1;
case PIPE_CAP_FS_FINE_DERIVATIVE:
return 1;
case PIPE_CAP_TGSI_TEX_TXF_LZ:
case PIPE_CAP_SAMPLER_VIEW_TARGET:
return 1;
case PIPE_CAP_FAKE_SW_MSAA: {
struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
return lscreen->use_tgsi ? 1 : 0;
}
case PIPE_CAP_TEXTURE_QUERY_LOD:
case PIPE_CAP_CONDITIONAL_RENDER_INVERTED:
case PIPE_CAP_SHADER_ARRAY_COMPONENTS:
case PIPE_CAP_DOUBLES:
case PIPE_CAP_INT64:
case PIPE_CAP_INT64_DIVMOD:
case PIPE_CAP_QUERY_SO_OVERFLOW:
case PIPE_CAP_TGSI_DIV:
return 1;
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 fo system memory ? */
uint64_t system_memory;
if (!os_get_total_physical_memory(&system_memory))
return 0;
if (sizeof(void *) == 4)
/* Cap to 2 GB on 32 bits system. We do this because llvmpipe does
* eat application memory, which is quite limited on 32 bits. App
* shouldn't expect too much available memory. */
system_memory = MIN2(system_memory, 2048 << 20);
return (int)(system_memory >> 20);
}
case PIPE_CAP_UMA:
return 0;
case PIPE_CAP_CLIP_HALFZ:
return 1;
case PIPE_CAP_POLYGON_OFFSET_CLAMP:
case PIPE_CAP_TEXTURE_FLOAT_LINEAR:
case PIPE_CAP_TEXTURE_HALF_FLOAT_LINEAR:
return 1;
case PIPE_CAP_CULL_DISTANCE:
return 1;
case PIPE_CAP_COPY_BETWEEN_COMPRESSED_AND_PLAIN_FORMATS:
return 1;
case PIPE_CAP_CLEAR_TEXTURE:
return 1;
case PIPE_CAP_MAX_VARYINGS:
return 32;
case PIPE_CAP_SHADER_BUFFER_OFFSET_ALIGNMENT:
return 16;
case PIPE_CAP_QUERY_BUFFER_OBJECT:
return 1;
case PIPE_CAP_DRAW_PARAMETERS:
return 1;
case PIPE_CAP_FBFETCH:
return 8;
case PIPE_CAP_FBFETCH_COHERENT:
case PIPE_CAP_FBFETCH_ZS:
case PIPE_CAP_MULTI_DRAW_INDIRECT:
case PIPE_CAP_MULTI_DRAW_INDIRECT_PARAMS:
return 1;
case PIPE_CAP_DEVICE_RESET_STATUS_QUERY:
case PIPE_CAP_ROBUST_BUFFER_ACCESS_BEHAVIOR:
return 1;
case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
return 32;
case PIPE_CAP_RASTERIZER_SUBPIXEL_BITS:
return 8;
case PIPE_CAP_PCI_GROUP:
case PIPE_CAP_PCI_BUS:
case PIPE_CAP_PCI_DEVICE:
case PIPE_CAP_PCI_FUNCTION:
case PIPE_CAP_ALLOW_MAPPED_BUFFERS_DURING_EXECUTION:
return 0;
case PIPE_CAP_SHAREABLE_SHADERS:
/* Can't expose shareable shaders because the draw shaders reference the
* draw module's state, which is per-context.
*/
return 0;
case PIPE_CAP_MAX_GS_INVOCATIONS:
return 32;
case PIPE_CAP_MAX_SHADER_BUFFER_SIZE_UINT:
return LP_MAX_TGSI_SHADER_BUFFER_SIZE;
case PIPE_CAP_FRAMEBUFFER_NO_ATTACHMENT:
case PIPE_CAP_TGSI_TG4_COMPONENT_IN_SWIZZLE:
case PIPE_CAP_FS_FACE_IS_INTEGER_SYSVAL:
case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
case PIPE_CAP_IMAGE_STORE_FORMATTED:
return 1;
#ifdef PIPE_MEMORY_FD
case PIPE_CAP_MEMOBJ:
return 1;
#endif
case PIPE_CAP_SAMPLER_REDUCTION_MINMAX:
case PIPE_CAP_TEXTURE_QUERY_SAMPLES:
case PIPE_CAP_SHADER_GROUP_VOTE:
case PIPE_CAP_LOAD_CONSTBUF:
case PIPE_CAP_TEXTURE_MULTISAMPLE:
case PIPE_CAP_SAMPLE_SHADING:
case PIPE_CAP_GL_SPIRV:
case PIPE_CAP_POST_DEPTH_COVERAGE:
case PIPE_CAP_PACKED_UNIFORMS: {
struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
return !lscreen->use_tgsi;
}
default:
return u_pipe_screen_get_param_defaults(screen, param);
}
}
static int
llvmpipe_get_shader_param(struct pipe_screen *screen,
enum pipe_shader_type shader,
enum pipe_shader_cap param)
{
struct llvmpipe_screen *lscreen = llvmpipe_screen(screen);
switch(shader)
{
case PIPE_SHADER_COMPUTE:
if ((lscreen->allow_cl) && param == PIPE_SHADER_CAP_SUPPORTED_IRS)
return (1 << PIPE_SHADER_IR_TGSI) | (1 << PIPE_SHADER_IR_NIR) | (1 << PIPE_SHADER_IR_NIR_SERIALIZED);
FALLTHROUGH;
case PIPE_SHADER_FRAGMENT:
if (param == PIPE_SHADER_CAP_PREFERRED_IR) {
if (lscreen->use_tgsi)
return PIPE_SHADER_IR_TGSI;
else
return PIPE_SHADER_IR_NIR;
}
return gallivm_get_shader_param(param);
case PIPE_SHADER_TESS_CTRL:
case PIPE_SHADER_TESS_EVAL:
/* Tessellation shader needs llvm coroutines support */
if (!GALLIVM_COROUTINES || lscreen->use_tgsi)
return 0;
FALLTHROUGH;
case PIPE_SHADER_VERTEX:
case PIPE_SHADER_GEOMETRY:
if (param == PIPE_SHADER_CAP_PREFERRED_IR) {
if (lscreen->use_tgsi)
return PIPE_SHADER_IR_TGSI;
else
return PIPE_SHADER_IR_NIR;
}
switch (param) {
case PIPE_SHADER_CAP_MAX_TEXTURE_SAMPLERS:
/* At this time, the draw module and llvmpipe driver only
* support vertex shader texture lookups when LLVM is enabled in
* the draw module.
*/
if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
return PIPE_MAX_SAMPLERS;
else
return 0;
case PIPE_SHADER_CAP_MAX_SAMPLER_VIEWS:
if (debug_get_bool_option("DRAW_USE_LLVM", TRUE))
return PIPE_MAX_SHADER_SAMPLER_VIEWS;
else
return 0;
default:
return draw_get_shader_param(shader, param);
}
default:
return 0;
}
}
static float
llvmpipe_get_paramf(struct pipe_screen *screen, enum pipe_capf param)
{
switch (param) {
case PIPE_CAPF_MIN_LINE_WIDTH:
case PIPE_CAPF_MIN_LINE_WIDTH_AA:
case PIPE_CAPF_MIN_POINT_SIZE:
case PIPE_CAPF_MIN_POINT_SIZE_AA:
return 1;
case PIPE_CAPF_POINT_SIZE_GRANULARITY:
case PIPE_CAPF_LINE_WIDTH_GRANULARITY:
return 0.1;
case PIPE_CAPF_MAX_LINE_WIDTH:
FALLTHROUGH;
case PIPE_CAPF_MAX_LINE_WIDTH_AA:
return 255.0; /* arbitrary */
case PIPE_CAPF_MAX_POINT_SIZE:
FALLTHROUGH;
case PIPE_CAPF_MAX_POINT_SIZE_AA:
return LP_MAX_POINT_WIDTH; /* arbitrary */
case PIPE_CAPF_MAX_TEXTURE_ANISOTROPY:
return 16.0; /* not actually signficant at this time */
case PIPE_CAPF_MAX_TEXTURE_LOD_BIAS:
return 16.0; /* arbitrary */
case PIPE_CAPF_MIN_CONSERVATIVE_RASTER_DILATE:
return 0.0;
case PIPE_CAPF_MAX_CONSERVATIVE_RASTER_DILATE:
return 0.0;
case PIPE_CAPF_CONSERVATIVE_RASTER_DILATE_GRANULARITY:
return 0.0;
}
/* should only get here on unhandled cases */
debug_printf("Unexpected PIPE_CAP %d query\n", param);
return 0.0;
}
static int
llvmpipe_get_compute_param(struct pipe_screen *_screen,
enum pipe_shader_ir ir_type,
enum pipe_compute_cap param,
void *ret)
{
switch (param) {
case PIPE_COMPUTE_CAP_IR_TARGET:
return 0;
case PIPE_COMPUTE_CAP_MAX_GRID_SIZE:
if (ret) {
uint64_t *grid_size = ret;
grid_size[0] = 65535;
grid_size[1] = 65535;
grid_size[2] = 65535;
}
return 3 * sizeof(uint64_t) ;
case PIPE_COMPUTE_CAP_MAX_BLOCK_SIZE:
if (ret) {
uint64_t *block_size = ret;
block_size[0] = 1024;
block_size[1] = 1024;
block_size[2] = 1024;
}
return 3 * sizeof(uint64_t);
case PIPE_COMPUTE_CAP_MAX_THREADS_PER_BLOCK:
if (ret) {
uint64_t *max_threads_per_block = ret;
*max_threads_per_block = 1024;
}
return sizeof(uint64_t);
case PIPE_COMPUTE_CAP_MAX_LOCAL_SIZE:
if (ret) {
uint64_t *max_local_size = ret;
*max_local_size = 32768;
}
return sizeof(uint64_t);
case PIPE_COMPUTE_CAP_GRID_DIMENSION:
if (ret) {
uint64_t *grid_dim = ret;
*grid_dim = 3;
}
return sizeof(uint64_t);
case PIPE_COMPUTE_CAP_MAX_GLOBAL_SIZE:
if (ret) {
uint64_t *max_global_size = ret;
*max_global_size = (1ULL << 31);
}
return sizeof(uint64_t);
case PIPE_COMPUTE_CAP_MAX_MEM_ALLOC_SIZE:
if (ret) {
uint64_t *max_mem_alloc_size = ret;
*max_mem_alloc_size = (1ULL << 31);
}
return sizeof(uint64_t);
case PIPE_COMPUTE_CAP_MAX_PRIVATE_SIZE:
if (ret) {
uint64_t *max_private = ret;
*max_private = (1UL << 31);
}
return sizeof(uint64_t);
case PIPE_COMPUTE_CAP_MAX_INPUT_SIZE:
if (ret) {
uint64_t *max_input = ret;
*max_input = 1576;
}
return sizeof(uint64_t);
case PIPE_COMPUTE_CAP_IMAGES_SUPPORTED:
if (ret) {
uint32_t *images = ret;
*images = LP_MAX_TGSI_SHADER_IMAGES;
}
return sizeof(uint32_t);
case PIPE_COMPUTE_CAP_MAX_VARIABLE_THREADS_PER_BLOCK:
return 0;
case PIPE_COMPUTE_CAP_SUBGROUP_SIZE:
if (ret) {
uint32_t *subgroup_size = ret;
*subgroup_size = 32;
}
return sizeof(uint32_t);
case PIPE_COMPUTE_CAP_MAX_COMPUTE_UNITS:
if (ret) {
uint32_t *max_compute_units = ret;
*max_compute_units = 8;
}
return sizeof(uint32_t);
case PIPE_COMPUTE_CAP_MAX_CLOCK_FREQUENCY:
if (ret) {
uint32_t *max_clock_freq = ret;
*max_clock_freq = 300;
}
return sizeof(uint32_t);
case PIPE_COMPUTE_CAP_ADDRESS_BITS:
if (ret) {
uint32_t *address_bits = ret;
*address_bits = 64;
}
return sizeof(uint32_t);
}
return 0;
}
static void
llvmpipe_get_driver_uuid(struct pipe_screen *pscreen, char *uuid)
{
memset(uuid, 0, PIPE_UUID_SIZE);
snprintf(uuid, PIPE_UUID_SIZE, "llvmpipeUUID");
}
static void
llvmpipe_get_device_uuid(struct pipe_screen *pscreen, char *uuid)
{
memset(uuid, 0, PIPE_UUID_SIZE);
snprintf(uuid, PIPE_UUID_SIZE, "mesa" PACKAGE_VERSION);
}
static const struct nir_shader_compiler_options gallivm_nir_options = {
.lower_scmp = true,
.lower_flrp32 = true,
.lower_flrp64 = true,
.lower_fsat = true,
.lower_bitfield_insert_to_shifts = true,
.lower_bitfield_extract_to_shifts = true,
.lower_fdot = true,
.lower_fdph = true,
.lower_ffma16 = true,
.lower_ffma32 = true,
.lower_ffma64 = true,
.lower_flrp16 = true,
.lower_fmod = true,
.lower_hadd = true,
.lower_uadd_sat = true,
.lower_usub_sat = true,
.lower_iadd_sat = true,
.lower_ldexp = true,
.lower_pack_snorm_2x16 = true,
.lower_pack_snorm_4x8 = true,
.lower_pack_unorm_2x16 = true,
.lower_pack_unorm_4x8 = true,
.lower_pack_half_2x16 = true,
.lower_pack_split = true,
.lower_unpack_snorm_2x16 = true,
.lower_unpack_snorm_4x8 = true,
.lower_unpack_unorm_2x16 = true,
.lower_unpack_unorm_4x8 = true,
.lower_unpack_half_2x16 = true,
.lower_extract_byte = true,
.lower_extract_word = true,
.lower_insert_byte = true,
.lower_insert_word = true,
.lower_rotate = true,
.lower_uadd_carry = true,
.lower_usub_borrow = true,
.lower_mul_2x32_64 = true,
.lower_ifind_msb = true,
.lower_int64_options = nir_lower_imul_2x32_64,
.max_unroll_iterations = 32,
.use_interpolated_input_intrinsics = true,
.lower_to_scalar = true,
.lower_uniforms_to_ubo = true,
.lower_vector_cmp = true,
.lower_device_index_to_zero = true,
.support_16bit_alu = true,
.lower_fisnormal = true,
.use_scoped_barrier = true,
};
static char *
llvmpipe_finalize_nir(struct pipe_screen *screen,
void *nirptr)
{
struct nir_shader *nir = (struct nir_shader *)nirptr;
lp_build_opt_nir(nir);
return NULL;
}
static inline const void *
llvmpipe_get_compiler_options(struct pipe_screen *screen,
enum pipe_shader_ir ir,
enum pipe_shader_type shader)
{
assert(ir == PIPE_SHADER_IR_NIR);
return &gallivm_nir_options;
}
/**
* Query format support for creating a texture, drawing surface, etc.
* \param format the format to test
* \param type one of PIPE_TEXTURE, PIPE_SURFACE
*/
static bool
llvmpipe_is_format_supported( struct pipe_screen *_screen,
enum pipe_format format,
enum pipe_texture_target target,
unsigned sample_count,
unsigned storage_sample_count,
unsigned bind)
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
struct sw_winsys *winsys = screen->winsys;
const struct util_format_description *format_desc;
format_desc = util_format_description(format);
assert(target == PIPE_BUFFER ||
target == PIPE_TEXTURE_1D ||
target == PIPE_TEXTURE_1D_ARRAY ||
target == PIPE_TEXTURE_2D ||
target == PIPE_TEXTURE_2D_ARRAY ||
target == PIPE_TEXTURE_RECT ||
target == PIPE_TEXTURE_3D ||
target == PIPE_TEXTURE_CUBE ||
target == PIPE_TEXTURE_CUBE_ARRAY);
if (sample_count != 0 && sample_count != 1 && sample_count != 4)
return false;
if (MAX2(1, sample_count) != MAX2(1, storage_sample_count))
return false;
if (bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SHADER_IMAGE)) {
if (format_desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB) {
/* this is a lie actually other formats COULD exist where we would fail */
if (format_desc->nr_channels < 3)
return false;
}
else if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_RGB)
return false;
if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN &&
format != PIPE_FORMAT_R11G11B10_FLOAT)
return false;
assert(format_desc->block.width == 1);
assert(format_desc->block.height == 1);
if (format_desc->is_mixed)
return false;
if (!format_desc->is_array && !format_desc->is_bitmask &&
format != PIPE_FORMAT_R11G11B10_FLOAT)
return false;
}
if (bind & PIPE_BIND_SHADER_IMAGE) {
switch (format) {
case PIPE_FORMAT_R32G32B32A32_FLOAT:
case PIPE_FORMAT_R16G16B16A16_FLOAT:
case PIPE_FORMAT_R32G32_FLOAT:
case PIPE_FORMAT_R16G16_FLOAT:
case PIPE_FORMAT_R11G11B10_FLOAT:
case PIPE_FORMAT_R32_FLOAT:
case PIPE_FORMAT_R16_FLOAT:
case PIPE_FORMAT_R32G32B32A32_UINT:
case PIPE_FORMAT_R16G16B16A16_UINT:
case PIPE_FORMAT_R10G10B10A2_UINT:
case PIPE_FORMAT_R8G8B8A8_UINT:
case PIPE_FORMAT_R32G32_UINT:
case PIPE_FORMAT_R16G16_UINT:
case PIPE_FORMAT_R8G8_UINT:
case PIPE_FORMAT_R32_UINT:
case PIPE_FORMAT_R16_UINT:
case PIPE_FORMAT_R8_UINT:
case PIPE_FORMAT_R32G32B32A32_SINT:
case PIPE_FORMAT_R16G16B16A16_SINT:
case PIPE_FORMAT_R8G8B8A8_SINT:
case PIPE_FORMAT_R32G32_SINT:
case PIPE_FORMAT_R16G16_SINT:
case PIPE_FORMAT_R8G8_SINT:
case PIPE_FORMAT_R32_SINT:
case PIPE_FORMAT_R16_SINT:
case PIPE_FORMAT_R8_SINT:
case PIPE_FORMAT_R16G16B16A16_UNORM:
case PIPE_FORMAT_R10G10B10A2_UNORM:
case PIPE_FORMAT_R8G8B8A8_UNORM:
case PIPE_FORMAT_R16G16_UNORM:
case PIPE_FORMAT_R8G8_UNORM:
case PIPE_FORMAT_R16_UNORM:
case PIPE_FORMAT_R8_UNORM:
case PIPE_FORMAT_R16G16B16A16_SNORM:
case PIPE_FORMAT_R8G8B8A8_SNORM:
case PIPE_FORMAT_R16G16_SNORM:
case PIPE_FORMAT_R8G8_SNORM:
case PIPE_FORMAT_R16_SNORM:
case PIPE_FORMAT_R8_SNORM:
case PIPE_FORMAT_B8G8R8A8_UNORM:
break;
default:
return false;
}
}
if ((bind & (PIPE_BIND_RENDER_TARGET | PIPE_BIND_SAMPLER_VIEW)) &&
((bind & PIPE_BIND_DISPLAY_TARGET) == 0)) {
/* Disable all 3-channel formats, where channel size != 32 bits.
* In some cases we run into crashes (in generate_unswizzled_blend()),
* for 3-channel RGB16 variants, there was an apparent LLVM bug.
* In any case, disabling the shallower 3-channel formats avoids a
* number of issues with GL_ARB_copy_image support.
*/
if (format_desc->is_array &&
format_desc->nr_channels == 3 &&
format_desc->block.bits != 96) {
return false;
}
/* Disable 64-bit integer formats for RT/samplers.
* VK CTS crashes with these and they don't make much sense.
*/
int c = util_format_get_first_non_void_channel(format_desc->format);
if (c >= 0) {
if (format_desc->channel[c].pure_integer && format_desc->channel[c].size == 64)
return false;
}
}
if (!(bind & PIPE_BIND_VERTEX_BUFFER) &&
util_format_is_scaled(format))
return false;
if (bind & PIPE_BIND_DISPLAY_TARGET) {
if(!winsys->is_displaytarget_format_supported(winsys, bind, format))
return false;
}
if (bind & PIPE_BIND_DEPTH_STENCIL) {
if (format_desc->layout != UTIL_FORMAT_LAYOUT_PLAIN)
return false;
if (format_desc->colorspace != UTIL_FORMAT_COLORSPACE_ZS)
return false;
}
if (format_desc->layout == UTIL_FORMAT_LAYOUT_ASTC ||
format_desc->layout == UTIL_FORMAT_LAYOUT_ATC) {
/* Software decoding is not hooked up. */
return false;
}
if (format_desc->layout == UTIL_FORMAT_LAYOUT_ETC &&
format != PIPE_FORMAT_ETC1_RGB8)
return false;
/*
* Everything can be supported by u_format
* (those without fetch_rgba_float might be not but shouldn't hit that)
*/
return true;
}
static void
llvmpipe_flush_frontbuffer(struct pipe_screen *_screen,
struct pipe_context *_pipe,
struct pipe_resource *resource,
unsigned level, unsigned layer,
void *context_private,
struct pipe_box *sub_box)
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
struct sw_winsys *winsys = screen->winsys;
struct llvmpipe_resource *texture = llvmpipe_resource(resource);
assert(texture->dt);
if (texture->dt)
winsys->displaytarget_display(winsys, texture->dt, context_private, sub_box);
}
static void
llvmpipe_destroy_screen( struct pipe_screen *_screen )
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
struct sw_winsys *winsys = screen->winsys;
if (screen->cs_tpool)
lp_cs_tpool_destroy(screen->cs_tpool);
if (screen->rast)
lp_rast_destroy(screen->rast);
lp_jit_screen_cleanup(screen);
if (LP_DEBUG & DEBUG_CACHE_STATS)
printf("disk shader cache: hits = %u, misses = %u\n", screen->num_disk_shader_cache_hits,
screen->num_disk_shader_cache_misses);
disk_cache_destroy(screen->disk_shader_cache);
if(winsys->destroy)
winsys->destroy(winsys);
glsl_type_singleton_decref();
mtx_destroy(&screen->rast_mutex);
mtx_destroy(&screen->cs_mutex);
FREE(screen);
}
/**
* Fence reference counting.
*/
static void
llvmpipe_fence_reference(struct pipe_screen *screen,
struct pipe_fence_handle **ptr,
struct pipe_fence_handle *fence)
{
struct lp_fence **old = (struct lp_fence **) ptr;
struct lp_fence *f = (struct lp_fence *) fence;
lp_fence_reference(old, f);
}
/**
* Wait for the fence to finish.
*/
static bool
llvmpipe_fence_finish(struct pipe_screen *screen,
struct pipe_context *ctx,
struct pipe_fence_handle *fence_handle,
uint64_t timeout)
{
struct lp_fence *f = (struct lp_fence *) fence_handle;
if (!timeout)
return lp_fence_signalled(f);
if (!lp_fence_signalled(f)) {
if (timeout != PIPE_TIMEOUT_INFINITE)
return lp_fence_timedwait(f, timeout);
lp_fence_wait(f);
}
return true;
}
static uint64_t
llvmpipe_get_timestamp(struct pipe_screen *_screen)
{
return os_time_get_nano();
}
static void update_cache_sha1_cpu(struct mesa_sha1 *ctx)
{
const struct util_cpu_caps_t *cpu_caps = util_get_cpu_caps();
/*
* Don't need the cpu cache affinity stuff. The rest
* is contained in first 5 dwords.
*/
STATIC_ASSERT(offsetof(struct util_cpu_caps_t, num_L3_caches) == 6 * sizeof(uint32_t));
_mesa_sha1_update(ctx, cpu_caps, 6 * sizeof(uint32_t));
}
static void lp_disk_cache_create(struct llvmpipe_screen *screen)
{
struct mesa_sha1 ctx;
unsigned gallivm_perf = gallivm_get_perf_flags();
unsigned char sha1[20];
char cache_id[20 * 2 + 1];
_mesa_sha1_init(&ctx);
if (!disk_cache_get_function_identifier(lp_disk_cache_create, &ctx) ||
!disk_cache_get_function_identifier(LLVMLinkInMCJIT, &ctx))
return;
_mesa_sha1_update(&ctx, &gallivm_perf, sizeof(gallivm_perf));
update_cache_sha1_cpu(&ctx);
_mesa_sha1_final(&ctx, sha1);
disk_cache_format_hex_id(cache_id, sha1, 20 * 2);
screen->disk_shader_cache = disk_cache_create("llvmpipe", cache_id, 0);
}
static struct disk_cache *lp_get_disk_shader_cache(struct pipe_screen *_screen)
{
struct llvmpipe_screen *screen = llvmpipe_screen(_screen);
return screen->disk_shader_cache;
}
void lp_disk_cache_find_shader(struct llvmpipe_screen *screen,
struct lp_cached_code *cache,
unsigned char ir_sha1_cache_key[20])
{
unsigned char sha1[CACHE_KEY_SIZE];
if (!screen->disk_shader_cache)
return;
disk_cache_compute_key(screen->disk_shader_cache, ir_sha1_cache_key, 20, sha1);
size_t binary_size;
uint8_t *buffer = disk_cache_get(screen->disk_shader_cache, sha1, &binary_size);
if (!buffer) {
cache->data_size = 0;
p_atomic_inc(&screen->num_disk_shader_cache_misses);
return;
}
cache->data_size = binary_size;
cache->data = buffer;
p_atomic_inc(&screen->num_disk_shader_cache_hits);
}
void lp_disk_cache_insert_shader(struct llvmpipe_screen *screen,
struct lp_cached_code *cache,
unsigned char ir_sha1_cache_key[20])
{
unsigned char sha1[CACHE_KEY_SIZE];
if (!screen->disk_shader_cache || !cache->data_size || cache->dont_cache)
return;
disk_cache_compute_key(screen->disk_shader_cache, ir_sha1_cache_key, 20, sha1);
disk_cache_put(screen->disk_shader_cache, sha1, cache->data, cache->data_size, NULL);
}
bool
llvmpipe_screen_late_init(struct llvmpipe_screen *screen)
{
bool ret = true;
mtx_lock(&screen->late_mutex);
if (screen->late_init_done)
goto out;
screen->rast = lp_rast_create(screen->num_threads);
if (!screen->rast) {
ret = false;
goto out;
}
screen->cs_tpool = lp_cs_tpool_create(screen->num_threads);
if (!screen->cs_tpool) {
lp_rast_destroy(screen->rast);
ret = false;
goto out;
}
lp_disk_cache_create(screen);
screen->late_init_done = true;
out:
mtx_unlock(&screen->late_mutex);
return ret;
}
/**
* Create a new pipe_screen object
* Note: we're not presently subclassing pipe_screen (no llvmpipe_screen).
*/
struct pipe_screen *
llvmpipe_create_screen(struct sw_winsys *winsys)
{
struct llvmpipe_screen *screen;
glsl_type_singleton_init_or_ref();
#ifdef DEBUG
LP_DEBUG = debug_get_flags_option("LP_DEBUG", lp_debug_flags, 0 );
#endif
LP_PERF = debug_get_flags_option("LP_PERF", lp_perf_flags, 0 );
screen = CALLOC_STRUCT(llvmpipe_screen);
if (!screen)
return NULL;
if (!lp_jit_screen_init(screen)) {
FREE(screen);
return NULL;
}
screen->winsys = winsys;
screen->base.destroy = llvmpipe_destroy_screen;
screen->base.get_name = llvmpipe_get_name;
screen->base.get_vendor = llvmpipe_get_vendor;
screen->base.get_device_vendor = llvmpipe_get_vendor; // TODO should be the CPU vendor
screen->base.get_param = llvmpipe_get_param;
screen->base.get_shader_param = llvmpipe_get_shader_param;
screen->base.get_compute_param = llvmpipe_get_compute_param;
screen->base.get_paramf = llvmpipe_get_paramf;
screen->base.get_compiler_options = llvmpipe_get_compiler_options;
screen->base.is_format_supported = llvmpipe_is_format_supported;
screen->base.context_create = llvmpipe_create_context;
screen->base.flush_frontbuffer = llvmpipe_flush_frontbuffer;
screen->base.fence_reference = llvmpipe_fence_reference;
screen->base.fence_finish = llvmpipe_fence_finish;
screen->base.get_timestamp = llvmpipe_get_timestamp;
screen->base.get_driver_uuid = llvmpipe_get_driver_uuid;
screen->base.get_device_uuid = llvmpipe_get_device_uuid;
screen->base.finalize_nir = llvmpipe_finalize_nir;
screen->base.get_disk_shader_cache = lp_get_disk_shader_cache;
llvmpipe_init_screen_resource_funcs(&screen->base);
screen->allow_cl = !!getenv("LP_CL");
screen->use_tgsi = (LP_DEBUG & DEBUG_TGSI_IR);
screen->num_threads = util_get_cpu_caps()->nr_cpus > 1 ? util_get_cpu_caps()->nr_cpus : 0;
#ifdef EMBEDDED_DEVICE
screen->num_threads = MIN2(screen->num_threads, 2);
#endif
screen->num_threads = debug_get_num_option("LP_NUM_THREADS", screen->num_threads);
screen->num_threads = MIN2(screen->num_threads, LP_MAX_THREADS);
lp_build_init(); /* get lp_native_vector_width initialised */
snprintf(screen->renderer_string, sizeof(screen->renderer_string), "llvmpipe (LLVM " MESA_LLVM_VERSION_STRING ", %u bits)", lp_native_vector_width );
(void) mtx_init(&screen->cs_mutex, mtx_plain);
(void) mtx_init(&screen->rast_mutex, mtx_plain);
(void) mtx_init(&screen->late_mutex, mtx_plain);
return &screen->base;
}
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