blob: e27a94a2e259fa91a15aceeed27a3b63f7508ac7 [file] [log] [blame]
/*
* Copyright 2018 Advanced Micro Devices, 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
* on 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
* THE AUTHOR(S) AND/OR THEIR 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 "si_pipe.h"
#include "tgsi/tgsi_text.h"
#include "tgsi/tgsi_ureg.h"
void *si_get_blitter_vs(struct si_context *sctx, enum blitter_attrib_type type, unsigned num_layers)
{
unsigned vs_blit_property;
void **vs;
switch (type) {
case UTIL_BLITTER_ATTRIB_NONE:
vs = num_layers > 1 ? &sctx->vs_blit_pos_layered : &sctx->vs_blit_pos;
vs_blit_property = SI_VS_BLIT_SGPRS_POS;
break;
case UTIL_BLITTER_ATTRIB_COLOR:
vs = num_layers > 1 ? &sctx->vs_blit_color_layered : &sctx->vs_blit_color;
vs_blit_property = SI_VS_BLIT_SGPRS_POS_COLOR;
break;
case UTIL_BLITTER_ATTRIB_TEXCOORD_XY:
case UTIL_BLITTER_ATTRIB_TEXCOORD_XYZW:
assert(num_layers == 1);
vs = &sctx->vs_blit_texcoord;
vs_blit_property = SI_VS_BLIT_SGPRS_POS_TEXCOORD;
break;
default:
assert(0);
return NULL;
}
if (*vs)
return *vs;
struct ureg_program *ureg = ureg_create(PIPE_SHADER_VERTEX);
if (!ureg)
return NULL;
/* Tell the shader to load VS inputs from SGPRs: */
ureg_property(ureg, TGSI_PROPERTY_VS_BLIT_SGPRS_AMD, vs_blit_property);
ureg_property(ureg, TGSI_PROPERTY_VS_WINDOW_SPACE_POSITION, true);
/* This is just a pass-through shader with 1-3 MOV instructions. */
ureg_MOV(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_POSITION, 0), ureg_DECL_vs_input(ureg, 0));
if (type != UTIL_BLITTER_ATTRIB_NONE) {
ureg_MOV(ureg, ureg_DECL_output(ureg, TGSI_SEMANTIC_GENERIC, 0), ureg_DECL_vs_input(ureg, 1));
}
if (num_layers > 1) {
struct ureg_src instance_id = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_INSTANCEID, 0);
struct ureg_dst layer = ureg_DECL_output(ureg, TGSI_SEMANTIC_LAYER, 0);
ureg_MOV(ureg, ureg_writemask(layer, TGSI_WRITEMASK_X),
ureg_scalar(instance_id, TGSI_SWIZZLE_X));
}
ureg_END(ureg);
*vs = ureg_create_shader_and_destroy(ureg, &sctx->b);
return *vs;
}
/**
* This is used when TCS is NULL in the VS->TCS->TES chain. In this case,
* VS passes its outputs to TES directly, so the fixed-function shader only
* has to write TESSOUTER and TESSINNER.
*/
void *si_create_fixed_func_tcs(struct si_context *sctx)
{
struct ureg_src outer, inner;
struct ureg_dst tessouter, tessinner;
struct ureg_program *ureg = ureg_create(PIPE_SHADER_TESS_CTRL);
if (!ureg)
return NULL;
outer = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_TESS_DEFAULT_OUTER_LEVEL, 0);
inner = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_TESS_DEFAULT_INNER_LEVEL, 0);
tessouter = ureg_DECL_output(ureg, TGSI_SEMANTIC_TESSOUTER, 0);
tessinner = ureg_DECL_output(ureg, TGSI_SEMANTIC_TESSINNER, 0);
ureg_MOV(ureg, tessouter, outer);
ureg_MOV(ureg, tessinner, inner);
ureg_END(ureg);
return ureg_create_shader_and_destroy(ureg, &sctx->b);
}
/* Create a compute shader implementing clear_buffer or copy_buffer. */
void *si_create_dma_compute_shader(struct pipe_context *ctx, unsigned num_dwords_per_thread,
bool dst_stream_cache_policy, bool is_copy)
{
struct si_screen *sscreen = (struct si_screen *)ctx->screen;
assert(util_is_power_of_two_nonzero(num_dwords_per_thread));
unsigned store_qualifier = TGSI_MEMORY_COHERENT | TGSI_MEMORY_RESTRICT;
if (dst_stream_cache_policy)
store_qualifier |= TGSI_MEMORY_STREAM_CACHE_POLICY;
/* Don't cache loads, because there is no reuse. */
unsigned load_qualifier = store_qualifier | TGSI_MEMORY_STREAM_CACHE_POLICY;
unsigned num_mem_ops = MAX2(1, num_dwords_per_thread / 4);
unsigned *inst_dwords = alloca(num_mem_ops * sizeof(unsigned));
for (unsigned i = 0; i < num_mem_ops; i++) {
if (i * 4 < num_dwords_per_thread)
inst_dwords[i] = MIN2(4, num_dwords_per_thread - i * 4);
}
struct ureg_program *ureg = ureg_create(PIPE_SHADER_COMPUTE);
if (!ureg)
return NULL;
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH, sscreen->compute_wave_size);
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT, 1);
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH, 1);
struct ureg_src value;
if (!is_copy) {
ureg_property(ureg, TGSI_PROPERTY_CS_USER_DATA_COMPONENTS_AMD, inst_dwords[0]);
value = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_CS_USER_DATA_AMD, 0);
}
struct ureg_src tid = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_THREAD_ID, 0);
struct ureg_src blk = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_BLOCK_ID, 0);
struct ureg_dst store_addr = ureg_writemask(ureg_DECL_temporary(ureg), TGSI_WRITEMASK_X);
struct ureg_dst load_addr = ureg_writemask(ureg_DECL_temporary(ureg), TGSI_WRITEMASK_X);
struct ureg_dst dstbuf = ureg_dst(ureg_DECL_buffer(ureg, 0, false));
struct ureg_src srcbuf;
struct ureg_src *values = NULL;
if (is_copy) {
srcbuf = ureg_DECL_buffer(ureg, 1, false);
values = malloc(num_mem_ops * sizeof(struct ureg_src));
}
/* If there are multiple stores, the first store writes into 0*wavesize+tid,
* the 2nd store writes into 1*wavesize+tid, the 3rd store writes into 2*wavesize+tid, etc.
*/
ureg_UMAD(ureg, store_addr, blk, ureg_imm1u(ureg, sscreen->compute_wave_size * num_mem_ops),
tid);
/* Convert from a "store size unit" into bytes. */
ureg_UMUL(ureg, store_addr, ureg_src(store_addr), ureg_imm1u(ureg, 4 * inst_dwords[0]));
ureg_MOV(ureg, load_addr, ureg_src(store_addr));
/* Distance between a load and a store for latency hiding. */
unsigned load_store_distance = is_copy ? 8 : 0;
for (unsigned i = 0; i < num_mem_ops + load_store_distance; i++) {
int d = i - load_store_distance;
if (is_copy && i < num_mem_ops) {
if (i) {
ureg_UADD(ureg, load_addr, ureg_src(load_addr),
ureg_imm1u(ureg, 4 * inst_dwords[i] * sscreen->compute_wave_size));
}
values[i] = ureg_src(ureg_DECL_temporary(ureg));
struct ureg_dst dst =
ureg_writemask(ureg_dst(values[i]), u_bit_consecutive(0, inst_dwords[i]));
struct ureg_src srcs[] = {srcbuf, ureg_src(load_addr)};
ureg_memory_insn(ureg, TGSI_OPCODE_LOAD, &dst, 1, srcs, 2, load_qualifier,
TGSI_TEXTURE_BUFFER, 0);
}
if (d >= 0) {
if (d) {
ureg_UADD(ureg, store_addr, ureg_src(store_addr),
ureg_imm1u(ureg, 4 * inst_dwords[d] * sscreen->compute_wave_size));
}
struct ureg_dst dst = ureg_writemask(dstbuf, u_bit_consecutive(0, inst_dwords[d]));
struct ureg_src srcs[] = {ureg_src(store_addr), is_copy ? values[d] : value};
ureg_memory_insn(ureg, TGSI_OPCODE_STORE, &dst, 1, srcs, 2, store_qualifier,
TGSI_TEXTURE_BUFFER, 0);
}
}
ureg_END(ureg);
struct pipe_compute_state state = {};
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = ureg_get_tokens(ureg, NULL);
void *cs = ctx->create_compute_state(ctx, &state);
ureg_destroy(ureg);
ureg_free_tokens(state.prog);
free(values);
return cs;
}
/* Create a compute shader that copies DCC from one buffer to another
* where each DCC buffer has a different layout.
*
* image[0]: offset remap table (pairs of <src_offset, dst_offset>),
* 2 pairs are read
* image[1]: DCC source buffer, typed r8_uint
* image[2]: DCC destination buffer, typed r8_uint
*/
void *si_create_dcc_retile_cs(struct pipe_context *ctx)
{
struct ureg_program *ureg = ureg_create(PIPE_SHADER_COMPUTE);
if (!ureg)
return NULL;
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH, 64);
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT, 1);
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH, 1);
/* Compute the global thread ID (in idx). */
struct ureg_src tid = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_THREAD_ID, 0);
struct ureg_src blk = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_BLOCK_ID, 0);
struct ureg_dst idx = ureg_writemask(ureg_DECL_temporary(ureg), TGSI_WRITEMASK_X);
ureg_UMAD(ureg, idx, blk, ureg_imm1u(ureg, 64), tid);
/* Load 2 pairs of offsets for DCC load & store. */
struct ureg_src map = ureg_DECL_image(ureg, 0, TGSI_TEXTURE_BUFFER, 0, false, false);
struct ureg_dst offsets = ureg_DECL_temporary(ureg);
struct ureg_src map_load_args[] = {map, ureg_src(idx)};
ureg_memory_insn(ureg, TGSI_OPCODE_LOAD, &offsets, 1, map_load_args, 2, TGSI_MEMORY_RESTRICT,
TGSI_TEXTURE_BUFFER, 0);
struct ureg_src dcc_src = ureg_DECL_image(ureg, 1, TGSI_TEXTURE_BUFFER, 0, false, false);
struct ureg_dst dcc_dst =
ureg_dst(ureg_DECL_image(ureg, 2, TGSI_TEXTURE_BUFFER, 0, true, false));
struct ureg_dst dcc_value[2];
/* Copy DCC values:
* dst[offsets.y] = src[offsets.x];
* dst[offsets.w] = src[offsets.z];
*/
for (unsigned i = 0; i < 2; i++) {
dcc_value[i] = ureg_writemask(ureg_DECL_temporary(ureg), TGSI_WRITEMASK_X);
struct ureg_src load_args[] = {dcc_src,
ureg_scalar(ureg_src(offsets), TGSI_SWIZZLE_X + i * 2)};
ureg_memory_insn(ureg, TGSI_OPCODE_LOAD, &dcc_value[i], 1, load_args, 2, TGSI_MEMORY_RESTRICT,
TGSI_TEXTURE_BUFFER, 0);
}
dcc_dst = ureg_writemask(dcc_dst, TGSI_WRITEMASK_X);
for (unsigned i = 0; i < 2; i++) {
struct ureg_src store_args[] = {ureg_scalar(ureg_src(offsets), TGSI_SWIZZLE_Y + i * 2),
ureg_src(dcc_value[i])};
ureg_memory_insn(ureg, TGSI_OPCODE_STORE, &dcc_dst, 1, store_args, 2, TGSI_MEMORY_RESTRICT,
TGSI_TEXTURE_BUFFER, 0);
}
ureg_END(ureg);
struct pipe_compute_state state = {};
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = ureg_get_tokens(ureg, NULL);
void *cs = ctx->create_compute_state(ctx, &state);
ureg_destroy(ureg);
ureg_free_tokens(state.prog);
return cs;
}
/* Create the compute shader that is used to collect the results.
*
* One compute grid with a single thread is launched for every query result
* buffer. The thread (optionally) reads a previous summary buffer, then
* accumulates data from the query result buffer, and writes the result either
* to a summary buffer to be consumed by the next grid invocation or to the
* user-supplied buffer.
*
* Data layout:
*
* CONST
* 0.x = end_offset
* 0.y = result_stride
* 0.z = result_count
* 0.w = bit field:
* 1: read previously accumulated values
* 2: write accumulated values for chaining
* 4: write result available
* 8: convert result to boolean (0/1)
* 16: only read one dword and use that as result
* 32: apply timestamp conversion
* 64: store full 64 bits result
* 128: store signed 32 bits result
* 256: SO_OVERFLOW mode: take the difference of two successive half-pairs
* 1.x = fence_offset
* 1.y = pair_stride
* 1.z = pair_count
*
* BUFFER[0] = query result buffer
* BUFFER[1] = previous summary buffer
* BUFFER[2] = next summary buffer or user-supplied buffer
*/
void *si_create_query_result_cs(struct si_context *sctx)
{
/* TEMP[0].xy = accumulated result so far
* TEMP[0].z = result not available
*
* TEMP[1].x = current result index
* TEMP[1].y = current pair index
*/
static const char text_tmpl[] =
"COMP\n"
"PROPERTY CS_FIXED_BLOCK_WIDTH 1\n"
"PROPERTY CS_FIXED_BLOCK_HEIGHT 1\n"
"PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
"DCL BUFFER[0]\n"
"DCL BUFFER[1]\n"
"DCL BUFFER[2]\n"
"DCL CONST[0][0..1]\n"
"DCL TEMP[0..5]\n"
"IMM[0] UINT32 {0, 31, 2147483647, 4294967295}\n"
"IMM[1] UINT32 {1, 2, 4, 8}\n"
"IMM[2] UINT32 {16, 32, 64, 128}\n"
"IMM[3] UINT32 {1000000, 0, %u, 0}\n" /* for timestamp conversion */
"IMM[4] UINT32 {256, 0, 0, 0}\n"
"AND TEMP[5], CONST[0][0].wwww, IMM[2].xxxx\n"
"UIF TEMP[5]\n"
/* Check result availability. */
"LOAD TEMP[1].x, BUFFER[0], CONST[0][1].xxxx\n"
"ISHR TEMP[0].z, TEMP[1].xxxx, IMM[0].yyyy\n"
"MOV TEMP[1], TEMP[0].zzzz\n"
"NOT TEMP[0].z, TEMP[0].zzzz\n"
/* Load result if available. */
"UIF TEMP[1]\n"
"LOAD TEMP[0].xy, BUFFER[0], IMM[0].xxxx\n"
"ENDIF\n"
"ELSE\n"
/* Load previously accumulated result if requested. */
"MOV TEMP[0], IMM[0].xxxx\n"
"AND TEMP[4], CONST[0][0].wwww, IMM[1].xxxx\n"
"UIF TEMP[4]\n"
"LOAD TEMP[0].xyz, BUFFER[1], IMM[0].xxxx\n"
"ENDIF\n"
"MOV TEMP[1].x, IMM[0].xxxx\n"
"BGNLOOP\n"
/* Break if accumulated result so far is not available. */
"UIF TEMP[0].zzzz\n"
"BRK\n"
"ENDIF\n"
/* Break if result_index >= result_count. */
"USGE TEMP[5], TEMP[1].xxxx, CONST[0][0].zzzz\n"
"UIF TEMP[5]\n"
"BRK\n"
"ENDIF\n"
/* Load fence and check result availability */
"UMAD TEMP[5].x, TEMP[1].xxxx, CONST[0][0].yyyy, CONST[0][1].xxxx\n"
"LOAD TEMP[5].x, BUFFER[0], TEMP[5].xxxx\n"
"ISHR TEMP[0].z, TEMP[5].xxxx, IMM[0].yyyy\n"
"NOT TEMP[0].z, TEMP[0].zzzz\n"
"UIF TEMP[0].zzzz\n"
"BRK\n"
"ENDIF\n"
"MOV TEMP[1].y, IMM[0].xxxx\n"
"BGNLOOP\n"
/* Load start and end. */
"UMUL TEMP[5].x, TEMP[1].xxxx, CONST[0][0].yyyy\n"
"UMAD TEMP[5].x, TEMP[1].yyyy, CONST[0][1].yyyy, TEMP[5].xxxx\n"
"LOAD TEMP[2].xy, BUFFER[0], TEMP[5].xxxx\n"
"UADD TEMP[5].y, TEMP[5].xxxx, CONST[0][0].xxxx\n"
"LOAD TEMP[3].xy, BUFFER[0], TEMP[5].yyyy\n"
"U64ADD TEMP[4].xy, TEMP[3], -TEMP[2]\n"
"AND TEMP[5].z, CONST[0][0].wwww, IMM[4].xxxx\n"
"UIF TEMP[5].zzzz\n"
/* Load second start/end half-pair and
* take the difference
*/
"UADD TEMP[5].xy, TEMP[5], IMM[1].wwww\n"
"LOAD TEMP[2].xy, BUFFER[0], TEMP[5].xxxx\n"
"LOAD TEMP[3].xy, BUFFER[0], TEMP[5].yyyy\n"
"U64ADD TEMP[3].xy, TEMP[3], -TEMP[2]\n"
"U64ADD TEMP[4].xy, TEMP[4], -TEMP[3]\n"
"ENDIF\n"
"U64ADD TEMP[0].xy, TEMP[0], TEMP[4]\n"
/* Increment pair index */
"UADD TEMP[1].y, TEMP[1].yyyy, IMM[1].xxxx\n"
"USGE TEMP[5], TEMP[1].yyyy, CONST[0][1].zzzz\n"
"UIF TEMP[5]\n"
"BRK\n"
"ENDIF\n"
"ENDLOOP\n"
/* Increment result index */
"UADD TEMP[1].x, TEMP[1].xxxx, IMM[1].xxxx\n"
"ENDLOOP\n"
"ENDIF\n"
"AND TEMP[4], CONST[0][0].wwww, IMM[1].yyyy\n"
"UIF TEMP[4]\n"
/* Store accumulated data for chaining. */
"STORE BUFFER[2].xyz, IMM[0].xxxx, TEMP[0]\n"
"ELSE\n"
"AND TEMP[4], CONST[0][0].wwww, IMM[1].zzzz\n"
"UIF TEMP[4]\n"
/* Store result availability. */
"NOT TEMP[0].z, TEMP[0]\n"
"AND TEMP[0].z, TEMP[0].zzzz, IMM[1].xxxx\n"
"STORE BUFFER[2].x, IMM[0].xxxx, TEMP[0].zzzz\n"
"AND TEMP[4], CONST[0][0].wwww, IMM[2].zzzz\n"
"UIF TEMP[4]\n"
"STORE BUFFER[2].y, IMM[0].xxxx, IMM[0].xxxx\n"
"ENDIF\n"
"ELSE\n"
/* Store result if it is available. */
"NOT TEMP[4], TEMP[0].zzzz\n"
"UIF TEMP[4]\n"
/* Apply timestamp conversion */
"AND TEMP[4], CONST[0][0].wwww, IMM[2].yyyy\n"
"UIF TEMP[4]\n"
"U64MUL TEMP[0].xy, TEMP[0], IMM[3].xyxy\n"
"U64DIV TEMP[0].xy, TEMP[0], IMM[3].zwzw\n"
"ENDIF\n"
/* Convert to boolean */
"AND TEMP[4], CONST[0][0].wwww, IMM[1].wwww\n"
"UIF TEMP[4]\n"
"U64SNE TEMP[0].x, TEMP[0].xyxy, IMM[4].zwzw\n"
"AND TEMP[0].x, TEMP[0].xxxx, IMM[1].xxxx\n"
"MOV TEMP[0].y, IMM[0].xxxx\n"
"ENDIF\n"
"AND TEMP[4], CONST[0][0].wwww, IMM[2].zzzz\n"
"UIF TEMP[4]\n"
"STORE BUFFER[2].xy, IMM[0].xxxx, TEMP[0].xyxy\n"
"ELSE\n"
/* Clamping */
"UIF TEMP[0].yyyy\n"
"MOV TEMP[0].x, IMM[0].wwww\n"
"ENDIF\n"
"AND TEMP[4], CONST[0][0].wwww, IMM[2].wwww\n"
"UIF TEMP[4]\n"
"UMIN TEMP[0].x, TEMP[0].xxxx, IMM[0].zzzz\n"
"ENDIF\n"
"STORE BUFFER[2].x, IMM[0].xxxx, TEMP[0].xxxx\n"
"ENDIF\n"
"ENDIF\n"
"ENDIF\n"
"ENDIF\n"
"END\n";
char text[sizeof(text_tmpl) + 32];
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {};
/* Hard code the frequency into the shader so that the backend can
* use the full range of optimizations for divide-by-constant.
*/
snprintf(text, sizeof(text), text_tmpl, sctx->screen->info.clock_crystal_freq);
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return sctx->b.create_compute_state(&sctx->b, &state);
}
/* Create a compute shader implementing copy_image.
* Luckily, this works with all texture targets except 1D_ARRAY.
*/
void *si_create_copy_image_compute_shader(struct pipe_context *ctx)
{
static const char text[] =
"COMP\n"
"DCL SV[0], THREAD_ID\n"
"DCL SV[1], BLOCK_ID\n"
"DCL SV[2], BLOCK_SIZE\n"
"DCL IMAGE[0], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL IMAGE[1], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL CONST[0][0..1]\n" // 0:xyzw 1:xyzw
"DCL TEMP[0..4], LOCAL\n"
"MOV TEMP[0].xyz, CONST[0][0].xyzw\n"
"UMAD TEMP[1].xyz, SV[1].xyzz, SV[2].xyzz, SV[0].xyzz\n"
"UADD TEMP[2].xyz, TEMP[1].xyzx, TEMP[0].xyzx\n"
"LOAD TEMP[3], IMAGE[0], TEMP[2].xyzx, 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
"MOV TEMP[4].xyz, CONST[0][1].xyzw\n"
"UADD TEMP[2].xyz, TEMP[1].xyzx, TEMP[4].xyzx\n"
"STORE IMAGE[1], TEMP[2].xyzz, TEMP[3], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
"END\n";
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {0};
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return ctx->create_compute_state(ctx, &state);
}
void *si_create_copy_image_compute_shader_1d_array(struct pipe_context *ctx)
{
static const char text[] =
"COMP\n"
"PROPERTY CS_FIXED_BLOCK_WIDTH 64\n"
"PROPERTY CS_FIXED_BLOCK_HEIGHT 1\n"
"PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
"DCL SV[0], THREAD_ID\n"
"DCL SV[1], BLOCK_ID\n"
"DCL IMAGE[0], 1D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL IMAGE[1], 1D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL CONST[0][0..1]\n" // 0:xyzw 1:xyzw
"DCL TEMP[0..4], LOCAL\n"
"IMM[0] UINT32 {64, 1, 0, 0}\n"
"MOV TEMP[0].xy, CONST[0][0].xzzw\n"
"UMAD TEMP[1].xy, SV[1].xyzz, IMM[0].xyyy, SV[0].xyzz\n"
"UADD TEMP[2].xy, TEMP[1].xyzx, TEMP[0].xyzx\n"
"LOAD TEMP[3], IMAGE[0], TEMP[2].xyzx, 1D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
"MOV TEMP[4].xy, CONST[0][1].xzzw\n"
"UADD TEMP[2].xy, TEMP[1].xyzx, TEMP[4].xyzx\n"
"STORE IMAGE[1], TEMP[2].xyzz, TEMP[3], 1D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
"END\n";
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {0};
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return ctx->create_compute_state(ctx, &state);
}
/* Create a compute shader implementing DCC decompression via a blit.
* This is a trivial copy_image shader except that it has a variable block
* size and a barrier.
*/
void *si_create_dcc_decompress_cs(struct pipe_context *ctx)
{
static const char text[] =
"COMP\n"
"DCL SV[0], THREAD_ID\n"
"DCL SV[1], BLOCK_ID\n"
"DCL SV[2], BLOCK_SIZE\n"
"DCL IMAGE[0], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL IMAGE[1], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL TEMP[0..1]\n"
"UMAD TEMP[0].xyz, SV[1].xyzz, SV[2].xyzz, SV[0].xyzz\n"
"LOAD TEMP[1], IMAGE[0], TEMP[0].xyzz, 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
/* Wait for the whole threadgroup (= DCC block) to load texels before
* overwriting them, because overwriting any pixel within a DCC block
* can break compression for the whole block.
*/
"BARRIER\n"
"STORE IMAGE[1], TEMP[0].xyzz, TEMP[1], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
"END\n";
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {0};
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return ctx->create_compute_state(ctx, &state);
}
void *si_clear_render_target_shader(struct pipe_context *ctx)
{
static const char text[] =
"COMP\n"
"PROPERTY CS_FIXED_BLOCK_WIDTH 8\n"
"PROPERTY CS_FIXED_BLOCK_HEIGHT 8\n"
"PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
"DCL SV[0], THREAD_ID\n"
"DCL SV[1], BLOCK_ID\n"
"DCL IMAGE[0], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL CONST[0][0..1]\n" // 0:xyzw 1:xyzw
"DCL TEMP[0..3], LOCAL\n"
"IMM[0] UINT32 {8, 1, 0, 0}\n"
"MOV TEMP[0].xyz, CONST[0][0].xyzw\n"
"UMAD TEMP[1].xyz, SV[1].xyzz, IMM[0].xxyy, SV[0].xyzz\n"
"UADD TEMP[2].xyz, TEMP[1].xyzx, TEMP[0].xyzx\n"
"MOV TEMP[3].xyzw, CONST[0][1].xyzw\n"
"STORE IMAGE[0], TEMP[2].xyzz, TEMP[3], 2D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
"END\n";
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {0};
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return ctx->create_compute_state(ctx, &state);
}
/* TODO: Didn't really test 1D_ARRAY */
void *si_clear_render_target_shader_1d_array(struct pipe_context *ctx)
{
static const char text[] =
"COMP\n"
"PROPERTY CS_FIXED_BLOCK_WIDTH 64\n"
"PROPERTY CS_FIXED_BLOCK_HEIGHT 1\n"
"PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
"DCL SV[0], THREAD_ID\n"
"DCL SV[1], BLOCK_ID\n"
"DCL IMAGE[0], 1D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT, WR\n"
"DCL CONST[0][0..1]\n" // 0:xyzw 1:xyzw
"DCL TEMP[0..3], LOCAL\n"
"IMM[0] UINT32 {64, 1, 0, 0}\n"
"MOV TEMP[0].xy, CONST[0][0].xzzw\n"
"UMAD TEMP[1].xy, SV[1].xyzz, IMM[0].xyyy, SV[0].xyzz\n"
"UADD TEMP[2].xy, TEMP[1].xyzx, TEMP[0].xyzx\n"
"MOV TEMP[3].xyzw, CONST[0][1].xyzw\n"
"STORE IMAGE[0], TEMP[2].xyzz, TEMP[3], 1D_ARRAY, PIPE_FORMAT_R32G32B32A32_FLOAT\n"
"END\n";
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {0};
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return ctx->create_compute_state(ctx, &state);
}
void *si_clear_12bytes_buffer_shader(struct pipe_context *ctx)
{
static const char text[] = "COMP\n"
"PROPERTY CS_FIXED_BLOCK_WIDTH 64\n"
"PROPERTY CS_FIXED_BLOCK_HEIGHT 1\n"
"PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
"DCL SV[0], THREAD_ID\n"
"DCL SV[1], BLOCK_ID\n"
"DCL BUFFER[0]\n"
"DCL CONST[0][0..0]\n" // 0:xyzw
"DCL TEMP[0..0]\n"
"IMM[0] UINT32 {64, 1, 12, 0}\n"
"UMAD TEMP[0].x, SV[1].xyzz, IMM[0].xyyy, SV[0].xyzz\n"
"UMUL TEMP[0].x, TEMP[0].xyzz, IMM[0].zzzz\n" // 12 bytes
"STORE BUFFER[0].xyz, TEMP[0].xxxx, CONST[0][0].xyzw\n"
"END\n";
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {0};
if (!tgsi_text_translate(text, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return ctx->create_compute_state(ctx, &state);
}
/* Load samples from the image, and copy them to the same image. This looks like
* a no-op, but it's not. Loads use FMASK, while stores don't, so samples are
* reordered to match expanded FMASK.
*
* After the shader finishes, FMASK should be cleared to identity.
*/
void *si_create_fmask_expand_cs(struct pipe_context *ctx, unsigned num_samples, bool is_array)
{
enum tgsi_texture_type target = is_array ? TGSI_TEXTURE_2D_ARRAY_MSAA : TGSI_TEXTURE_2D_MSAA;
struct ureg_program *ureg = ureg_create(PIPE_SHADER_COMPUTE);
if (!ureg)
return NULL;
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_WIDTH, 8);
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_HEIGHT, 8);
ureg_property(ureg, TGSI_PROPERTY_CS_FIXED_BLOCK_DEPTH, 1);
/* Compute the image coordinates. */
struct ureg_src image = ureg_DECL_image(ureg, 0, target, 0, true, false);
struct ureg_src tid = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_THREAD_ID, 0);
struct ureg_src blk = ureg_DECL_system_value(ureg, TGSI_SEMANTIC_BLOCK_ID, 0);
struct ureg_dst coord = ureg_writemask(ureg_DECL_temporary(ureg), TGSI_WRITEMASK_XYZW);
ureg_UMAD(ureg, ureg_writemask(coord, TGSI_WRITEMASK_XY), ureg_swizzle(blk, 0, 1, 1, 1),
ureg_imm2u(ureg, 8, 8), ureg_swizzle(tid, 0, 1, 1, 1));
if (is_array) {
ureg_MOV(ureg, ureg_writemask(coord, TGSI_WRITEMASK_Z), ureg_scalar(blk, TGSI_SWIZZLE_Z));
}
/* Load samples, resolving FMASK. */
struct ureg_dst sample[8];
assert(num_samples <= ARRAY_SIZE(sample));
for (unsigned i = 0; i < num_samples; i++) {
sample[i] = ureg_DECL_temporary(ureg);
ureg_MOV(ureg, ureg_writemask(coord, TGSI_WRITEMASK_W), ureg_imm1u(ureg, i));
struct ureg_src srcs[] = {image, ureg_src(coord)};
ureg_memory_insn(ureg, TGSI_OPCODE_LOAD, &sample[i], 1, srcs, 2, TGSI_MEMORY_RESTRICT, target,
0);
}
/* Store samples, ignoring FMASK. */
for (unsigned i = 0; i < num_samples; i++) {
ureg_MOV(ureg, ureg_writemask(coord, TGSI_WRITEMASK_W), ureg_imm1u(ureg, i));
struct ureg_dst dst_image = ureg_dst(image);
struct ureg_src srcs[] = {ureg_src(coord), ureg_src(sample[i])};
ureg_memory_insn(ureg, TGSI_OPCODE_STORE, &dst_image, 1, srcs, 2, TGSI_MEMORY_RESTRICT,
target, 0);
}
ureg_END(ureg);
struct pipe_compute_state state = {};
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = ureg_get_tokens(ureg, NULL);
void *cs = ctx->create_compute_state(ctx, &state);
ureg_destroy(ureg);
return cs;
}
/* Create the compute shader that is used to collect the results of gfx10+
* shader queries.
*
* One compute grid with a single thread is launched for every query result
* buffer. The thread (optionally) reads a previous summary buffer, then
* accumulates data from the query result buffer, and writes the result either
* to a summary buffer to be consumed by the next grid invocation or to the
* user-supplied buffer.
*
* Data layout:
*
* BUFFER[0] = query result buffer (layout is defined by gfx10_sh_query_buffer_mem)
* BUFFER[1] = previous summary buffer
* BUFFER[2] = next summary buffer or user-supplied buffer
*
* CONST
* 0.x = config; the low 3 bits indicate the mode:
* 0: sum up counts
* 1: determine result availability and write it as a boolean
* 2: SO_OVERFLOW
* 3: SO_ANY_OVERFLOW
* the remaining bits form a bitfield:
* 8: write result as a 64-bit value
* 0.y = offset in bytes to counts or stream for SO_OVERFLOW mode
* 0.z = chain bit field:
* 1: have previous summary buffer
* 2: write next summary buffer
* 0.w = result_count
*/
void *gfx10_create_sh_query_result_cs(struct si_context *sctx)
{
/* TEMP[0].x = accumulated result so far
* TEMP[0].y = result missing
* TEMP[0].z = whether we're in overflow mode
*/
static const char text_tmpl[] = "COMP\n"
"PROPERTY CS_FIXED_BLOCK_WIDTH 1\n"
"PROPERTY CS_FIXED_BLOCK_HEIGHT 1\n"
"PROPERTY CS_FIXED_BLOCK_DEPTH 1\n"
"DCL BUFFER[0]\n"
"DCL BUFFER[1]\n"
"DCL BUFFER[2]\n"
"DCL CONST[0][0..0]\n"
"DCL TEMP[0..5]\n"
"IMM[0] UINT32 {0, 7, 0, 4294967295}\n"
"IMM[1] UINT32 {1, 2, 4, 8}\n"
"IMM[2] UINT32 {16, 32, 64, 128}\n"
/*
acc_result = 0;
acc_missing = 0;
if (chain & 1) {
acc_result = buffer[1][0];
acc_missing = buffer[1][1];
}
*/
"MOV TEMP[0].xy, IMM[0].xxxx\n"
"AND TEMP[5], CONST[0][0].zzzz, IMM[1].xxxx\n"
"UIF TEMP[5]\n"
"LOAD TEMP[0].xy, BUFFER[1], IMM[0].xxxx\n"
"ENDIF\n"
/*
is_overflow (TEMP[0].z) = (config & 7) >= 2;
result_remaining (TEMP[1].x) = (is_overflow && acc_result) ? 0 :
result_count; base_offset (TEMP[1].y) = 0; for (;;) { if
(!result_remaining) break; result_remaining--;
*/
"AND TEMP[5].x, CONST[0][0].xxxx, IMM[0].yyyy\n"
"USGE TEMP[0].z, TEMP[5].xxxx, IMM[1].yyyy\n"
"AND TEMP[5].x, TEMP[0].zzzz, TEMP[0].xxxx\n"
"UCMP TEMP[1].x, TEMP[5].xxxx, IMM[0].xxxx, CONST[0][0].wwww\n"
"MOV TEMP[1].y, IMM[0].xxxx\n"
"BGNLOOP\n"
"USEQ TEMP[5], TEMP[1].xxxx, IMM[0].xxxx\n"
"UIF TEMP[5]\n"
"BRK\n"
"ENDIF\n"
"UADD TEMP[1].x, TEMP[1].xxxx, IMM[0].wwww\n"
/*
fence = buffer[0]@(base_offset + 32);
if (!fence) {
acc_missing = ~0u;
break;
}
*/
"UADD TEMP[5].x, TEMP[1].yyyy, IMM[2].yyyy\n"
"LOAD TEMP[5].x, BUFFER[0], TEMP[5].xxxx\n"
"USEQ TEMP[5], TEMP[5].xxxx, IMM[0].xxxx\n"
"UIF TEMP[5]\n"
"MOV TEMP[0].y, TEMP[5].xxxx\n"
"BRK\n"
"ENDIF\n"
/*
stream_offset (TEMP[2].x) = base_offset + offset;
if (!(config & 7)) {
acc_result += buffer[0]@stream_offset;
}
*/
"UADD TEMP[2].x, TEMP[1].yyyy, CONST[0][0].yyyy\n"
"AND TEMP[5].x, CONST[0][0].xxxx, IMM[0].yyyy\n"
"USEQ TEMP[5], TEMP[5].xxxx, IMM[0].xxxx\n"
"UIF TEMP[5]\n"
"LOAD TEMP[5].x, BUFFER[0], TEMP[2].xxxx\n"
"UADD TEMP[0].x, TEMP[0].xxxx, TEMP[5].xxxx\n"
"ENDIF\n"
/*
if ((config & 7) >= 2) {
count (TEMP[2].y) = (config & 1) ? 4 : 1;
*/
"AND TEMP[5].x, CONST[0][0].xxxx, IMM[0].yyyy\n"
"USGE TEMP[5], TEMP[5].xxxx, IMM[1].yyyy\n"
"UIF TEMP[5]\n"
"AND TEMP[5].x, CONST[0][0].xxxx, IMM[1].xxxx\n"
"UCMP TEMP[2].y, TEMP[5].xxxx, IMM[1].zzzz, IMM[1].xxxx\n"
/*
do {
generated = buffer[0]@stream_offset;
emitted = buffer[0]@(stream_offset + 16);
if (generated != emitted) {
acc_result = 1;
result_remaining = 0;
break;
}
stream_offset += 4;
} while (--count);
*/
"BGNLOOP\n"
"UADD TEMP[5].x, TEMP[2].xxxx, IMM[2].xxxx\n"
"LOAD TEMP[4].x, BUFFER[0], TEMP[2].xxxx\n"
"LOAD TEMP[4].y, BUFFER[0], TEMP[5].xxxx\n"
"USNE TEMP[5], TEMP[4].xxxx, TEMP[4].yyyy\n"
"UIF TEMP[5]\n"
"MOV TEMP[0].x, IMM[1].xxxx\n"
"MOV TEMP[1].y, IMM[0].xxxx\n"
"BRK\n"
"ENDIF\n"
"UADD TEMP[2].y, TEMP[2].yyyy, IMM[0].wwww\n"
"USEQ TEMP[5], TEMP[2].yyyy, IMM[0].xxxx\n"
"UIF TEMP[5]\n"
"BRK\n"
"ENDIF\n"
"UADD TEMP[2].x, TEMP[2].xxxx, IMM[1].zzzz\n"
"ENDLOOP\n"
"ENDIF\n"
/*
base_offset += 64;
} // end outer loop
*/
"UADD TEMP[1].y, TEMP[1].yyyy, IMM[2].zzzz\n"
"ENDLOOP\n"
/*
if (chain & 2) {
buffer[2][0] = acc_result;
buffer[2][1] = acc_missing;
} else {
*/
"AND TEMP[5], CONST[0][0].zzzz, IMM[1].yyyy\n"
"UIF TEMP[5]\n"
"STORE BUFFER[2].xy, IMM[0].xxxx, TEMP[0]\n"
"ELSE\n"
/*
if ((config & 7) == 1) {
acc_result = acc_missing ? 0 : 1;
acc_missing = 0;
}
*/
"AND TEMP[5], CONST[0][0].xxxx, IMM[0].yyyy\n"
"USEQ TEMP[5], TEMP[5].xxxx, IMM[1].xxxx\n"
"UIF TEMP[5]\n"
"UCMP TEMP[0].x, TEMP[0].yyyy, IMM[0].xxxx, IMM[1].xxxx\n"
"MOV TEMP[0].y, IMM[0].xxxx\n"
"ENDIF\n"
/*
if (!acc_missing) {
buffer[2][0] = acc_result;
if (config & 8)
buffer[2][1] = 0;
}
*/
"USEQ TEMP[5], TEMP[0].yyyy, IMM[0].xxxx\n"
"UIF TEMP[5]\n"
"STORE BUFFER[2].x, IMM[0].xxxx, TEMP[0].xxxx\n"
"AND TEMP[5], CONST[0][0].xxxx, IMM[1].wwww\n"
"UIF TEMP[5]\n"
"STORE BUFFER[2].x, IMM[1].zzzz, TEMP[0].yyyy\n"
"ENDIF\n"
"ENDIF\n"
"ENDIF\n"
"END\n";
struct tgsi_token tokens[1024];
struct pipe_compute_state state = {};
if (!tgsi_text_translate(text_tmpl, tokens, ARRAY_SIZE(tokens))) {
assert(false);
return NULL;
}
state.ir_type = PIPE_SHADER_IR_TGSI;
state.prog = tokens;
return sctx->b.create_compute_state(&sctx->b, &state);
}