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IABSD.fr/xenocara/lib/mesa/src/imagination/vulkan/pvr_hardcode.c

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  • Author : jsg
    Date : 2025-06-05 11:23:11
    Hash : 67d6f117
    Message : Import Mesa 25.0.7

  • lib/mesa/src/imagination/vulkan/pvr_hardcode.c
  • /*
     * Copyright © 2022 Imagination Technologies Ltd.
     *
     * 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 <stdbool.h>
    #include <stddef.h>
    #include <stdint.h>
    #include <string.h>
    #include <vulkan/vulkan_core.h>
    
    #include "compiler/shader_enums.h"
    #include "hwdef/rogue_hw_utils.h"
    #include "pvr_device_info.h"
    #include "pvr_hardcode.h"
    #include "pvr_private.h"
    #include "rogue/rogue.h"
    #include "usc/hardcoded_apps/pvr_simple_compute.h"
    #include "util/macros.h"
    #include "util/u_dynarray.h"
    #include "util/u_process.h"
    
    /**
     * \file pvr_hardcode.c
     *
     * \brief Contains hard coding functions.
     * This should eventually be deleted as the compiler becomes more capable.
     */
    
    #define PVR_AXE_1_16M_BVNC PVR_BVNC_PACK(33, 15, 11, 3)
    #define PVR_GX6250_BVNC PVR_BVNC_PACK(4, 40, 2, 51)
    
    #define util_dynarray_append_mem(buf, size, mem) \
       memcpy(util_dynarray_grow_bytes((buf), 1, size), mem, size)
    
    enum pvr_hard_code_shader_type {
       PVR_HARD_CODE_SHADER_TYPE_COMPUTE,
       PVR_HARD_CODE_SHADER_TYPE_GRAPHICS,
    };
    
    static const struct pvr_hard_coding_data {
       const char *const name;
       uint64_t bvnc;
       enum pvr_hard_code_shader_type type;
    
       union {
          struct {
             const uint8_t *const shader;
             size_t shader_size;
    
             /* Note that the bo field will be unused. */
             const struct pvr_compute_shader_state shader_info;
    
             const struct pvr_hard_code_compute_build_info build_info;
          } compute;
    
          struct {
             /* Mask of MESA_SHADER_* (gl_shader_stage). */
             uint32_t flags;
    
             uint8_t *const *const vert_shaders;
             unsigned *vert_shader_sizes;
             uint8_t *const *const frag_shaders;
             unsigned *frag_shader_sizes;
    
             const struct pvr_vertex_shader_state *const *const vert_shader_states;
             const struct pvr_fragment_shader_state *const *const frag_shader_states;
    
             const struct pvr_hard_code_graphics_build_info *const
                *const build_infos;
    
             uint32_t shader_count;
          } graphics;
       };
    
    } hard_coding_table[] = {
       {
          .name = "simple-compute",
          .bvnc = PVR_GX6250_BVNC,
          .type = PVR_HARD_CODE_SHADER_TYPE_COMPUTE,
    
          .compute = {
             .shader = pvr_simple_compute_shader,
             .shader_size = sizeof(pvr_simple_compute_shader),
    
             .shader_info = {
                .uses_atomic_ops = false,
                .uses_barrier = false,
                .uses_num_workgroups = false,
    
                .const_shared_reg_count = 4,
                .input_register_count = 8,
                .work_size = 1 * 1 * 1,
                .coefficient_register_count = 4,
             },
    
             .build_info = {
                .ubo_data = { 0 },
                .compile_time_consts_data = {
                   .static_consts = { 0 },
                },
    
                .local_invocation_regs = { 0, 1 },
                .work_group_regs = { 0, 1, 2 },
                .barrier_reg = ROGUE_REG_UNUSED,
                .usc_temps = 0,
    
                .explicit_conts_usage = {
                   .start_offset = 0,
                },
             },
          }
       },
    };
    
    static inline uint64_t
    pvr_device_get_bvnc(const struct pvr_device_info *const dev_info)
    {
       const struct pvr_device_ident *const ident = &dev_info->ident;
    
       return PVR_BVNC_PACK(ident->b, ident->v, ident->n, ident->c);
    }
    
    bool pvr_has_hard_coded_shaders(const struct pvr_device_info *const dev_info)
    {
       const char *const program = util_get_process_name();
       const uint64_t bvnc = pvr_device_get_bvnc(dev_info);
    
       for (uint32_t i = 0; i < ARRAY_SIZE(hard_coding_table); i++) {
          if (bvnc != hard_coding_table[i].bvnc)
             continue;
    
          if (strcmp(program, hard_coding_table[i].name) == 0)
             return true;
       }
    
       return false;
    }
    
    static const struct pvr_hard_coding_data *
    pvr_get_hard_coding_data(const struct pvr_device_info *const dev_info)
    {
       const char *const program = util_get_process_name();
       const uint64_t bvnc = pvr_device_get_bvnc(dev_info);
    
       for (uint32_t i = 0; i < ARRAY_SIZE(hard_coding_table); i++) {
          if (bvnc != hard_coding_table[i].bvnc)
             continue;
    
          if (strcmp(program, hard_coding_table[i].name) == 0)
             return &hard_coding_table[i];
       }
    
       mesa_loge("Could not find hard coding data for %s", program);
    
       return NULL;
    }
    
    VkResult pvr_hard_code_compute_pipeline(
       struct pvr_device *const device,
       struct pvr_compute_shader_state *const shader_state_out,
       struct pvr_hard_code_compute_build_info *const build_info_out)
    {
       const uint32_t cache_line_size =
          rogue_get_slc_cache_line_size(&device->pdevice->dev_info);
       const struct pvr_hard_coding_data *const data =
          pvr_get_hard_coding_data(&device->pdevice->dev_info);
    
       assert(data->type == PVR_HARD_CODE_SHADER_TYPE_COMPUTE);
    
       mesa_logd("Hard coding compute pipeline for %s", data->name);
    
       *build_info_out = data->compute.build_info;
       *shader_state_out = data->compute.shader_info;
    
       return pvr_gpu_upload_usc(device,
                                 data->compute.shader,
                                 data->compute.shader_size,
                                 cache_line_size,
                                 &shader_state_out->bo);
    }
    
    uint32_t
    pvr_hard_code_graphics_get_flags(const struct pvr_device_info *const dev_info)
    {
       const struct pvr_hard_coding_data *const data =
          pvr_get_hard_coding_data(dev_info);
    
       assert(data->type == PVR_HARD_CODE_SHADER_TYPE_GRAPHICS);
    
       return data->graphics.flags;
    }
    
    void pvr_hard_code_graphics_shader(const struct pvr_device_info *const dev_info,
                                       uint32_t pipeline_n,
                                       gl_shader_stage stage,
                                       struct util_dynarray *shader_out)
    {
       const struct pvr_hard_coding_data *const data =
          pvr_get_hard_coding_data(dev_info);
    
       assert(data->type == PVR_HARD_CODE_SHADER_TYPE_GRAPHICS);
       assert(pipeline_n < data->graphics.shader_count);
       assert(data->graphics.flags & BITFIELD_BIT(stage));
    
       mesa_logd("Hard coding %s stage shader for \"%s\" demo.",
                 _mesa_shader_stage_to_string(stage),
                 data->name);
    
       switch (stage) {
       case MESA_SHADER_VERTEX:
          util_dynarray_append_mem(shader_out,
                                   data->graphics.vert_shader_sizes[pipeline_n],
                                   data->graphics.vert_shaders[pipeline_n]);
          break;
    
       case MESA_SHADER_FRAGMENT:
          util_dynarray_append_mem(shader_out,
                                   data->graphics.frag_shader_sizes[pipeline_n],
                                   data->graphics.frag_shaders[pipeline_n]);
          break;
    
       default:
          unreachable("Unsupported stage.");
       }
    }
    
    void pvr_hard_code_graphics_vertex_state(
       const struct pvr_device_info *const dev_info,
       uint32_t pipeline_n,
       struct pvr_vertex_shader_state *const vert_state_out)
    {
       const struct pvr_hard_coding_data *const data =
          pvr_get_hard_coding_data(dev_info);
    
       assert(data->type == PVR_HARD_CODE_SHADER_TYPE_GRAPHICS);
       assert(pipeline_n < data->graphics.shader_count);
       assert(data->graphics.flags & BITFIELD_BIT(MESA_SHADER_VERTEX));
    
       *vert_state_out = *data->graphics.vert_shader_states[0];
    }
    
    void pvr_hard_code_graphics_fragment_state(
       const struct pvr_device_info *const dev_info,
       uint32_t pipeline_n,
       struct pvr_fragment_shader_state *const frag_state_out)
    {
       const struct pvr_hard_coding_data *const data =
          pvr_get_hard_coding_data(dev_info);
    
       assert(data->type == PVR_HARD_CODE_SHADER_TYPE_GRAPHICS);
       assert(pipeline_n < data->graphics.shader_count);
       assert(data->graphics.flags & BITFIELD_BIT(MESA_SHADER_FRAGMENT));
    
       *frag_state_out = *data->graphics.frag_shader_states[0];
    }
    
    void pvr_hard_code_graphics_get_build_info(
       const struct pvr_device_info *const dev_info,
       uint32_t pipeline_n,
       gl_shader_stage stage,
       struct rogue_common_build_data *const common_build_data,
       struct rogue_build_data *const build_data,
       struct pvr_explicit_constant_usage *const explicit_const_usage)
    {
       const struct pvr_hard_coding_data *const data =
          pvr_get_hard_coding_data(dev_info);
    
       assert(data->type == PVR_HARD_CODE_SHADER_TYPE_GRAPHICS);
       assert(pipeline_n < data->graphics.shader_count);
       assert(data->graphics.flags & BITFIELD_BIT(stage));
    
       switch (stage) {
       case MESA_SHADER_VERTEX:
          assert(data->graphics.build_infos[pipeline_n]->vert_common_data.temps ==
                 data->graphics.vert_shader_states[pipeline_n]
                    ->stage_state.pds_temps_count);
    
          build_data->vs = data->graphics.build_infos[pipeline_n]->stage_data.vs;
          *common_build_data =
             data->graphics.build_infos[pipeline_n]->vert_common_data;
          *explicit_const_usage =
             data->graphics.build_infos[pipeline_n]->vert_explicit_conts_usage;
    
          break;
    
       case MESA_SHADER_FRAGMENT:
          assert(data->graphics.build_infos[pipeline_n]->frag_common_data.temps ==
                 data->graphics.frag_shader_states[pipeline_n]
                    ->stage_state.pds_temps_count);
    
          build_data->fs = data->graphics.build_infos[pipeline_n]->stage_data.fs;
          *common_build_data =
             data->graphics.build_infos[pipeline_n]->frag_common_data;
          *explicit_const_usage =
             data->graphics.build_infos[pipeline_n]->frag_explicit_conts_usage;
    
          break;
    
       default:
          unreachable("Unsupported stage.");
       }
    }
    
    void pvr_hard_code_get_idfwdf_program(
       const struct pvr_device_info *const dev_info,
       struct util_dynarray *program_out,
       uint32_t *usc_shareds_out,
       uint32_t *usc_temps_out)
    {
       static const uint8_t shader[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
    
       mesa_loge("No hard coded idfwdf program. Returning empty program.");
    
       util_dynarray_append_mem(program_out, ARRAY_SIZE(shader), &shader[0]);
    
       *usc_shareds_out = 12U;
       *usc_temps_out = 4U;
    }
    
    void pvr_hard_code_get_passthrough_vertex_shader(
       const struct pvr_device_info *const dev_info,
       struct util_dynarray *program_out)
    {
       static const uint8_t shader[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
    
       mesa_loge(
          "No hard coded passthrough vertex shader. Returning empty shader.");
    
       util_dynarray_append_mem(program_out, ARRAY_SIZE(shader), &shader[0]);
    };
    
    /* Render target array (RTA). */
    void pvr_hard_code_get_passthrough_rta_vertex_shader(
       const struct pvr_device_info *const dev_info,
       struct util_dynarray *program_out)
    {
       uint32_t shader[] = { 0, 0, 0, 0, 0, 0, 0, 0 };
    
       util_dynarray_append_mem(program_out, ARRAY_SIZE(shader), &shader);
    
       mesa_loge("No hard coded passthrough rta vertex shader. Returning "
                 "empty shader.");
    }