| /* |
| * Copyright (C) 2018 Alyssa Rosenzweig |
| * Copyright (C) 2020 Collabora 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 "util/macros.h" |
| #include "util/u_prim.h" |
| #include "util/u_vbuf.h" |
| #include "util/u_helpers.h" |
| |
| #include "panfrost-quirks.h" |
| |
| #include "pan_pool.h" |
| #include "pan_bo.h" |
| #include "pan_cmdstream.h" |
| #include "pan_context.h" |
| #include "pan_job.h" |
| |
| /* If a BO is accessed for a particular shader stage, will it be in the primary |
| * batch (vertex/tiler) or the secondary batch (fragment)? Anything but |
| * fragment will be primary, e.g. compute jobs will be considered |
| * "vertex/tiler" by analogy */ |
| |
| static inline uint32_t |
| panfrost_bo_access_for_stage(enum pipe_shader_type stage) |
| { |
| assert(stage == PIPE_SHADER_FRAGMENT || |
| stage == PIPE_SHADER_VERTEX || |
| stage == PIPE_SHADER_COMPUTE); |
| |
| return stage == PIPE_SHADER_FRAGMENT ? |
| PAN_BO_ACCESS_FRAGMENT : |
| PAN_BO_ACCESS_VERTEX_TILER; |
| } |
| |
| /* Gets a GPU address for the associated index buffer. Only gauranteed to be |
| * good for the duration of the draw (transient), could last longer. Also get |
| * the bounds on the index buffer for the range accessed by the draw. We do |
| * these operations together because there are natural optimizations which |
| * require them to be together. */ |
| |
| mali_ptr |
| panfrost_get_index_buffer_bounded(struct panfrost_context *ctx, |
| const struct pipe_draw_info *info, |
| unsigned *min_index, unsigned *max_index) |
| { |
| struct panfrost_resource *rsrc = pan_resource(info->index.resource); |
| struct panfrost_batch *batch = panfrost_get_batch_for_fbo(ctx); |
| off_t offset = info->start * info->index_size; |
| bool needs_indices = true; |
| mali_ptr out = 0; |
| |
| if (info->max_index != ~0u) { |
| *min_index = info->min_index; |
| *max_index = info->max_index; |
| needs_indices = false; |
| } |
| |
| if (!info->has_user_indices) { |
| /* Only resources can be directly mapped */ |
| panfrost_batch_add_bo(batch, rsrc->bo, |
| PAN_BO_ACCESS_SHARED | |
| PAN_BO_ACCESS_READ | |
| PAN_BO_ACCESS_VERTEX_TILER); |
| out = rsrc->bo->ptr.gpu + offset; |
| |
| /* Check the cache */ |
| needs_indices = !panfrost_minmax_cache_get(rsrc->index_cache, |
| info->start, |
| info->count, |
| min_index, |
| max_index); |
| } else { |
| /* Otherwise, we need to upload to transient memory */ |
| const uint8_t *ibuf8 = (const uint8_t *) info->index.user; |
| struct panfrost_ptr T = |
| panfrost_pool_alloc_aligned(&batch->pool, |
| info->count * info->index_size, |
| info->index_size); |
| |
| memcpy(T.cpu, ibuf8 + offset, info->count * info->index_size); |
| out = T.gpu; |
| } |
| |
| if (needs_indices) { |
| /* Fallback */ |
| u_vbuf_get_minmax_index(&ctx->base, info, min_index, max_index); |
| |
| if (!info->has_user_indices) |
| panfrost_minmax_cache_add(rsrc->index_cache, |
| info->start, info->count, |
| *min_index, *max_index); |
| } |
| |
| return out; |
| } |
| |
| static unsigned |
| translate_tex_wrap(enum pipe_tex_wrap w) |
| { |
| switch (w) { |
| case PIPE_TEX_WRAP_REPEAT: return MALI_WRAP_MODE_REPEAT; |
| case PIPE_TEX_WRAP_CLAMP: return MALI_WRAP_MODE_CLAMP; |
| case PIPE_TEX_WRAP_CLAMP_TO_EDGE: return MALI_WRAP_MODE_CLAMP_TO_EDGE; |
| case PIPE_TEX_WRAP_CLAMP_TO_BORDER: return MALI_WRAP_MODE_CLAMP_TO_BORDER; |
| case PIPE_TEX_WRAP_MIRROR_REPEAT: return MALI_WRAP_MODE_MIRRORED_REPEAT; |
| case PIPE_TEX_WRAP_MIRROR_CLAMP: return MALI_WRAP_MODE_MIRRORED_CLAMP; |
| case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_EDGE: return MALI_WRAP_MODE_MIRRORED_CLAMP_TO_EDGE; |
| case PIPE_TEX_WRAP_MIRROR_CLAMP_TO_BORDER: return MALI_WRAP_MODE_MIRRORED_CLAMP_TO_BORDER; |
| default: unreachable("Invalid wrap"); |
| } |
| } |
| |
| /* The hardware compares in the wrong order order, so we have to flip before |
| * encoding. Yes, really. */ |
| |
| static enum mali_func |
| panfrost_sampler_compare_func(const struct pipe_sampler_state *cso) |
| { |
| if (!cso->compare_mode) |
| return MALI_FUNC_NEVER; |
| |
| enum mali_func f = panfrost_translate_compare_func(cso->compare_func); |
| return panfrost_flip_compare_func(f); |
| } |
| |
| static enum mali_mipmap_mode |
| pan_pipe_to_mipmode(enum pipe_tex_mipfilter f) |
| { |
| switch (f) { |
| case PIPE_TEX_MIPFILTER_NEAREST: return MALI_MIPMAP_MODE_NEAREST; |
| case PIPE_TEX_MIPFILTER_LINEAR: return MALI_MIPMAP_MODE_TRILINEAR; |
| case PIPE_TEX_MIPFILTER_NONE: return MALI_MIPMAP_MODE_NONE; |
| default: unreachable("Invalid"); |
| } |
| } |
| |
| void panfrost_sampler_desc_init(const struct pipe_sampler_state *cso, |
| struct mali_midgard_sampler_packed *hw) |
| { |
| pan_pack(hw, MIDGARD_SAMPLER, cfg) { |
| cfg.magnify_nearest = cso->mag_img_filter == PIPE_TEX_FILTER_NEAREST; |
| cfg.minify_nearest = cso->min_img_filter == PIPE_TEX_FILTER_NEAREST; |
| cfg.mipmap_mode = (cso->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR) ? |
| MALI_MIPMAP_MODE_TRILINEAR : MALI_MIPMAP_MODE_NEAREST; |
| cfg.normalized_coordinates = cso->normalized_coords; |
| |
| cfg.lod_bias = FIXED_16(cso->lod_bias, true); |
| |
| cfg.minimum_lod = FIXED_16(cso->min_lod, false); |
| |
| /* If necessary, we disable mipmapping in the sampler descriptor by |
| * clamping the LOD as tight as possible (from 0 to epsilon, |
| * essentially -- remember these are fixed point numbers, so |
| * epsilon=1/256) */ |
| |
| cfg.maximum_lod = (cso->min_mip_filter == PIPE_TEX_MIPFILTER_NONE) ? |
| cfg.minimum_lod + 1 : |
| FIXED_16(cso->max_lod, false); |
| |
| cfg.wrap_mode_s = translate_tex_wrap(cso->wrap_s); |
| cfg.wrap_mode_t = translate_tex_wrap(cso->wrap_t); |
| cfg.wrap_mode_r = translate_tex_wrap(cso->wrap_r); |
| |
| cfg.compare_function = panfrost_sampler_compare_func(cso); |
| cfg.seamless_cube_map = cso->seamless_cube_map; |
| |
| cfg.border_color_r = cso->border_color.f[0]; |
| cfg.border_color_g = cso->border_color.f[1]; |
| cfg.border_color_b = cso->border_color.f[2]; |
| cfg.border_color_a = cso->border_color.f[3]; |
| } |
| } |
| |
| void panfrost_sampler_desc_init_bifrost(const struct pipe_sampler_state *cso, |
| struct mali_bifrost_sampler_packed *hw) |
| { |
| pan_pack(hw, BIFROST_SAMPLER, cfg) { |
| cfg.point_sample_magnify = cso->mag_img_filter == PIPE_TEX_FILTER_NEAREST; |
| cfg.point_sample_minify = cso->min_img_filter == PIPE_TEX_FILTER_NEAREST; |
| cfg.mipmap_mode = pan_pipe_to_mipmode(cso->min_mip_filter); |
| cfg.normalized_coordinates = cso->normalized_coords; |
| |
| cfg.lod_bias = FIXED_16(cso->lod_bias, true); |
| cfg.minimum_lod = FIXED_16(cso->min_lod, false); |
| cfg.maximum_lod = FIXED_16(cso->max_lod, false); |
| |
| cfg.wrap_mode_s = translate_tex_wrap(cso->wrap_s); |
| cfg.wrap_mode_t = translate_tex_wrap(cso->wrap_t); |
| cfg.wrap_mode_r = translate_tex_wrap(cso->wrap_r); |
| |
| cfg.compare_function = panfrost_sampler_compare_func(cso); |
| cfg.seamless_cube_map = cso->seamless_cube_map; |
| } |
| } |
| |
| static bool |
| panfrost_fs_required( |
| struct panfrost_shader_state *fs, |
| struct panfrost_blend_final *blend, |
| unsigned rt_count) |
| { |
| /* If we generally have side effects */ |
| if (fs->fs_sidefx) |
| return true; |
| |
| /* If colour is written we need to execute */ |
| for (unsigned i = 0; i < rt_count; ++i) { |
| if (!blend[i].no_colour) |
| return true; |
| } |
| |
| /* If depth is written and not implied we need to execute. |
| * TODO: Predicate on Z/S writes being enabled */ |
| return (fs->writes_depth || fs->writes_stencil); |
| } |
| |
| static void |
| panfrost_emit_bifrost_blend(struct panfrost_batch *batch, |
| struct panfrost_blend_final *blend, |
| void *rts) |
| { |
| unsigned rt_count = batch->key.nr_cbufs; |
| |
| if (rt_count == 0) { |
| /* Disable blending for depth-only */ |
| pan_pack(rts, BLEND, cfg) { |
| cfg.enable = false; |
| cfg.bifrost.internal.mode = MALI_BIFROST_BLEND_MODE_OFF; |
| } |
| return; |
| } |
| |
| const struct panfrost_device *dev = pan_device(batch->ctx->base.screen); |
| struct panfrost_shader_state *fs = panfrost_get_shader_state(batch->ctx, PIPE_SHADER_FRAGMENT); |
| |
| for (unsigned i = 0; i < rt_count; ++i) { |
| pan_pack(rts + i * MALI_BLEND_LENGTH, BLEND, cfg) { |
| if (blend[i].no_colour) { |
| cfg.enable = false; |
| } else { |
| cfg.srgb = util_format_is_srgb(batch->key.cbufs[i]->format); |
| cfg.load_destination = blend[i].load_dest; |
| cfg.round_to_fb_precision = !batch->ctx->blend->base.dither; |
| } |
| |
| if (blend[i].is_shader) { |
| /* The blend shader's address needs to be at |
| * the same top 32 bit as the fragment shader. |
| * TODO: Ensure that's always the case. |
| */ |
| assert((blend[i].shader.gpu & (0xffffffffull << 32)) == |
| (fs->bo->ptr.gpu & (0xffffffffull << 32))); |
| cfg.bifrost.internal.shader.pc = (u32)blend[i].shader.gpu; |
| assert(!(fs->blend_ret_addrs[i] & 0x7)); |
| cfg.bifrost.internal.shader.return_value = fs->blend_ret_addrs[i]; |
| cfg.bifrost.internal.mode = MALI_BIFROST_BLEND_MODE_SHADER; |
| } else { |
| enum pipe_format format = batch->key.cbufs[i]->format; |
| const struct util_format_description *format_desc; |
| unsigned chan_size = 0; |
| |
| format_desc = util_format_description(format); |
| |
| for (unsigned i = 0; i < format_desc->nr_channels; i++) |
| chan_size = MAX2(format_desc->channel[0].size, chan_size); |
| |
| cfg.bifrost.equation = blend[i].equation.equation; |
| |
| /* Fixed point constant */ |
| u16 constant = blend[i].equation.constant * ((1 << chan_size) - 1); |
| constant <<= 16 - chan_size; |
| cfg.bifrost.constant = constant; |
| |
| if (blend[i].opaque) |
| cfg.bifrost.internal.mode = MALI_BIFROST_BLEND_MODE_OPAQUE; |
| else |
| cfg.bifrost.internal.mode = MALI_BIFROST_BLEND_MODE_FIXED_FUNCTION; |
| |
| cfg.bifrost.internal.fixed_function.num_comps = format_desc->nr_channels; |
| cfg.bifrost.internal.fixed_function.conversion.memory_format.format = |
| panfrost_format_to_bifrost_blend(format_desc, true); |
| if (dev->quirks & HAS_SWIZZLES) { |
| cfg.bifrost.internal.fixed_function.conversion.memory_format.swizzle = |
| panfrost_get_default_swizzle(4); |
| } |
| cfg.bifrost.internal.fixed_function.conversion.register_format = |
| fs->blend_types[i]; |
| } |
| } |
| } |
| } |
| |
| static void |
| panfrost_emit_midgard_blend(struct panfrost_batch *batch, |
| struct panfrost_blend_final *blend, |
| void *rts) |
| { |
| unsigned rt_count = batch->key.nr_cbufs; |
| |
| if (rt_count == 0) { |
| /* Disable blending for depth-only */ |
| pan_pack(rts, BLEND, cfg) { |
| cfg.midgard.equation.color_mask = 0xf; |
| cfg.midgard.equation.rgb.a = MALI_BLEND_OPERAND_A_SRC; |
| cfg.midgard.equation.rgb.b = MALI_BLEND_OPERAND_B_SRC; |
| cfg.midgard.equation.rgb.c = MALI_BLEND_OPERAND_C_ZERO; |
| cfg.midgard.equation.alpha.a = MALI_BLEND_OPERAND_A_SRC; |
| cfg.midgard.equation.alpha.b = MALI_BLEND_OPERAND_B_SRC; |
| cfg.midgard.equation.alpha.c = MALI_BLEND_OPERAND_C_ZERO; |
| } |
| return; |
| } |
| |
| for (unsigned i = 0; i < rt_count; ++i) { |
| pan_pack(rts + i * MALI_BLEND_LENGTH, BLEND, cfg) { |
| if (blend[i].no_colour) { |
| cfg.enable = false; |
| continue; |
| } |
| |
| cfg.srgb = util_format_is_srgb(batch->key.cbufs[i]->format); |
| cfg.load_destination = blend[i].load_dest; |
| cfg.round_to_fb_precision = !batch->ctx->blend->base.dither; |
| cfg.midgard.blend_shader = blend[i].is_shader; |
| if (blend[i].is_shader) { |
| cfg.midgard.shader_pc = blend[i].shader.gpu | blend[i].shader.first_tag; |
| } else { |
| cfg.midgard.equation = blend[i].equation.equation; |
| cfg.midgard.constant = blend[i].equation.constant; |
| } |
| } |
| } |
| } |
| |
| static void |
| panfrost_emit_blend(struct panfrost_batch *batch, void *rts, |
| struct panfrost_blend_final *blend) |
| { |
| const struct panfrost_device *dev = pan_device(batch->ctx->base.screen); |
| |
| if (dev->quirks & IS_BIFROST) |
| panfrost_emit_bifrost_blend(batch, blend, rts); |
| else |
| panfrost_emit_midgard_blend(batch, blend, rts); |
| |
| for (unsigned i = 0; i < batch->key.nr_cbufs; ++i) { |
| if (!blend[i].no_colour) |
| batch->draws |= (PIPE_CLEAR_COLOR0 << i); |
| } |
| } |
| |
| static void |
| panfrost_prepare_bifrost_fs_state(struct panfrost_context *ctx, |
| struct panfrost_blend_final *blend, |
| struct MALI_RENDERER_STATE *state) |
| { |
| struct panfrost_shader_state *fs = panfrost_get_shader_state(ctx, PIPE_SHADER_FRAGMENT); |
| unsigned rt_count = ctx->pipe_framebuffer.nr_cbufs; |
| |
| if (!panfrost_fs_required(fs, blend, rt_count)) { |
| state->properties.uniform_buffer_count = 32; |
| state->properties.bifrost.shader_modifies_coverage = true; |
| state->properties.bifrost.allow_forward_pixel_to_kill = true; |
| state->properties.bifrost.allow_forward_pixel_to_be_killed = true; |
| state->properties.bifrost.zs_update_operation = MALI_PIXEL_KILL_STRONG_EARLY; |
| } else { |
| bool no_blend = true; |
| |
| for (unsigned i = 0; i < rt_count; ++i) |
| no_blend &= (!blend[i].load_dest | blend[i].no_colour); |
| |
| state->properties = fs->properties; |
| state->properties.bifrost.allow_forward_pixel_to_kill = |
| !fs->can_discard && !fs->writes_depth && no_blend; |
| state->shader = fs->shader; |
| state->preload = fs->preload; |
| } |
| } |
| |
| static void |
| panfrost_prepare_midgard_fs_state(struct panfrost_context *ctx, |
| struct panfrost_blend_final *blend, |
| struct MALI_RENDERER_STATE *state) |
| { |
| const struct panfrost_device *dev = pan_device(ctx->base.screen); |
| struct panfrost_shader_state *fs = panfrost_get_shader_state(ctx, PIPE_SHADER_FRAGMENT); |
| const struct panfrost_zsa_state *zsa = ctx->depth_stencil; |
| unsigned rt_count = ctx->pipe_framebuffer.nr_cbufs; |
| bool alpha_to_coverage = ctx->blend->base.alpha_to_coverage; |
| |
| if (!panfrost_fs_required(fs, blend, rt_count)) { |
| state->shader.shader = 0x1; |
| state->properties.midgard.work_register_count = 1; |
| state->properties.depth_source = MALI_DEPTH_SOURCE_FIXED_FUNCTION; |
| state->properties.midgard.force_early_z = true; |
| } else { |
| /* Reasons to disable early-Z from a shader perspective */ |
| bool late_z = fs->can_discard || fs->writes_global || |
| fs->writes_depth || fs->writes_stencil; |
| |
| /* If either depth or stencil is enabled, discard matters */ |
| bool zs_enabled = |
| (zsa->base.depth.enabled && zsa->base.depth.func != PIPE_FUNC_ALWAYS) || |
| zsa->base.stencil[0].enabled; |
| |
| bool has_blend_shader = false; |
| |
| for (unsigned c = 0; c < rt_count; ++c) |
| has_blend_shader |= blend[c].is_shader; |
| |
| /* TODO: Reduce this limit? */ |
| state->properties = fs->properties; |
| if (has_blend_shader) |
| state->properties.midgard.work_register_count = MAX2(fs->work_reg_count, 8); |
| else |
| state->properties.midgard.work_register_count = fs->work_reg_count; |
| |
| state->properties.midgard.force_early_z = !(late_z || alpha_to_coverage); |
| |
| /* Workaround a hardware errata where early-z cannot be enabled |
| * when discarding even when the depth buffer is read-only, by |
| * lying to the hardware about the discard and setting the |
| * reads tilebuffer? flag to compensate */ |
| state->properties.midgard.shader_reads_tilebuffer = |
| fs->outputs_read || (!zs_enabled && fs->can_discard); |
| state->properties.midgard.shader_contains_discard = zs_enabled && fs->can_discard; |
| state->shader = fs->shader; |
| } |
| |
| if (dev->quirks & MIDGARD_SFBD) { |
| state->multisample_misc.sfbd_load_destination = blend[0].load_dest; |
| state->multisample_misc.sfbd_blend_shader = blend[0].is_shader; |
| state->stencil_mask_misc.sfbd_write_enable = !blend[0].no_colour; |
| state->stencil_mask_misc.sfbd_srgb = util_format_is_srgb(ctx->pipe_framebuffer.cbufs[0]->format); |
| state->stencil_mask_misc.sfbd_dither_disable = !ctx->blend->base.dither; |
| |
| if (blend[0].is_shader) { |
| state->sfbd_blend_shader = blend[0].shader.gpu | |
| blend[0].shader.first_tag; |
| } else { |
| state->sfbd_blend_equation = blend[0].equation.equation; |
| state->sfbd_blend_constant = blend[0].equation.constant; |
| } |
| } else { |
| /* Bug where MRT-capable hw apparently reads the last blend |
| * shader from here instead of the usual location? */ |
| |
| for (signed rt = ((signed) rt_count - 1); rt >= 0; --rt) { |
| if (!blend[rt].is_shader) |
| continue; |
| |
| state->sfbd_blend_shader = blend[rt].shader.gpu | |
| blend[rt].shader.first_tag; |
| break; |
| } |
| } |
| } |
| |
| static void |
| panfrost_prepare_fs_state(struct panfrost_context *ctx, |
| struct panfrost_blend_final *blend, |
| struct MALI_RENDERER_STATE *state) |
| { |
| const struct panfrost_device *dev = pan_device(ctx->base.screen); |
| struct panfrost_shader_state *fs = panfrost_get_shader_state(ctx, PIPE_SHADER_FRAGMENT); |
| struct pipe_rasterizer_state *rast = &ctx->rasterizer->base; |
| const struct panfrost_zsa_state *zsa = ctx->depth_stencil; |
| bool alpha_to_coverage = ctx->blend->base.alpha_to_coverage; |
| |
| if (dev->quirks & IS_BIFROST) |
| panfrost_prepare_bifrost_fs_state(ctx, blend, state); |
| else |
| panfrost_prepare_midgard_fs_state(ctx, blend, state); |
| |
| bool msaa = rast->multisample; |
| state->multisample_misc.multisample_enable = msaa; |
| state->multisample_misc.sample_mask = (msaa ? ctx->sample_mask : ~0) & 0xFFFF; |
| |
| /* EXT_shader_framebuffer_fetch requires per-sample */ |
| bool per_sample = ctx->min_samples > 1 || fs->outputs_read; |
| state->multisample_misc.evaluate_per_sample = msaa && per_sample; |
| state->multisample_misc.depth_function = zsa->base.depth.enabled ? |
| panfrost_translate_compare_func(zsa->base.depth.func) : |
| MALI_FUNC_ALWAYS; |
| |
| state->multisample_misc.depth_write_mask = zsa->base.depth.writemask; |
| state->multisample_misc.fixed_function_near_discard = rast->depth_clip_near; |
| state->multisample_misc.fixed_function_far_discard = rast->depth_clip_far; |
| state->multisample_misc.shader_depth_range_fixed = true; |
| |
| state->stencil_mask_misc.stencil_mask_front = zsa->stencil_mask_front; |
| state->stencil_mask_misc.stencil_mask_back = zsa->stencil_mask_back; |
| state->stencil_mask_misc.stencil_enable = zsa->base.stencil[0].enabled; |
| state->stencil_mask_misc.alpha_to_coverage = alpha_to_coverage; |
| state->stencil_mask_misc.alpha_test_compare_function = MALI_FUNC_ALWAYS; |
| state->stencil_mask_misc.depth_range_1 = rast->offset_tri; |
| state->stencil_mask_misc.depth_range_2 = rast->offset_tri; |
| state->stencil_mask_misc.single_sampled_lines = !rast->multisample; |
| state->depth_units = rast->offset_units * 2.0f; |
| state->depth_factor = rast->offset_scale; |
| |
| bool back_enab = zsa->base.stencil[1].enabled; |
| state->stencil_front = zsa->stencil_front; |
| state->stencil_back = zsa->stencil_back; |
| state->stencil_front.reference_value = ctx->stencil_ref.ref_value[0]; |
| state->stencil_back.reference_value = ctx->stencil_ref.ref_value[back_enab ? 1 : 0]; |
| } |
| |
| |
| static void |
| panfrost_emit_frag_shader(struct panfrost_context *ctx, |
| struct mali_renderer_state_packed *fragmeta, |
| struct panfrost_blend_final *blend) |
| { |
| pan_pack(fragmeta, RENDERER_STATE, cfg) { |
| panfrost_prepare_fs_state(ctx, blend, &cfg); |
| } |
| } |
| |
| mali_ptr |
| panfrost_emit_compute_shader_meta(struct panfrost_batch *batch, enum pipe_shader_type stage) |
| { |
| struct panfrost_shader_state *ss = panfrost_get_shader_state(batch->ctx, stage); |
| |
| panfrost_batch_add_bo(batch, ss->bo, |
| PAN_BO_ACCESS_PRIVATE | |
| PAN_BO_ACCESS_READ | |
| PAN_BO_ACCESS_VERTEX_TILER); |
| |
| panfrost_batch_add_bo(batch, pan_resource(ss->upload.rsrc)->bo, |
| PAN_BO_ACCESS_PRIVATE | |
| PAN_BO_ACCESS_READ | |
| PAN_BO_ACCESS_VERTEX_TILER); |
| |
| return pan_resource(ss->upload.rsrc)->bo->ptr.gpu + ss->upload.offset; |
| } |
| |
| mali_ptr |
| panfrost_emit_frag_shader_meta(struct panfrost_batch *batch) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| struct panfrost_shader_state *ss = panfrost_get_shader_state(ctx, PIPE_SHADER_FRAGMENT); |
| |
| /* Add the shader BO to the batch. */ |
| panfrost_batch_add_bo(batch, ss->bo, |
| PAN_BO_ACCESS_PRIVATE | |
| PAN_BO_ACCESS_READ | |
| PAN_BO_ACCESS_FRAGMENT); |
| |
| struct panfrost_device *dev = pan_device(ctx->base.screen); |
| unsigned rt_count = MAX2(ctx->pipe_framebuffer.nr_cbufs, 1); |
| struct panfrost_ptr xfer; |
| unsigned rt_size; |
| |
| if (dev->quirks & MIDGARD_SFBD) |
| rt_size = 0; |
| else |
| rt_size = MALI_BLEND_LENGTH; |
| |
| unsigned desc_size = MALI_RENDERER_STATE_LENGTH + rt_size * rt_count; |
| xfer = panfrost_pool_alloc_aligned(&batch->pool, desc_size, MALI_RENDERER_STATE_LENGTH); |
| |
| struct panfrost_blend_final blend[PIPE_MAX_COLOR_BUFS]; |
| unsigned shader_offset = 0; |
| struct panfrost_bo *shader_bo = NULL; |
| |
| for (unsigned c = 0; c < ctx->pipe_framebuffer.nr_cbufs; ++c) |
| blend[c] = panfrost_get_blend_for_context(ctx, c, &shader_bo, |
| &shader_offset); |
| panfrost_emit_frag_shader(ctx, (struct mali_renderer_state_packed *) xfer.cpu, blend); |
| |
| if (!(dev->quirks & MIDGARD_SFBD)) |
| panfrost_emit_blend(batch, xfer.cpu + MALI_RENDERER_STATE_LENGTH, blend); |
| else |
| batch->draws |= PIPE_CLEAR_COLOR0; |
| |
| return xfer.gpu; |
| } |
| |
| mali_ptr |
| panfrost_emit_viewport(struct panfrost_batch *batch) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| const struct pipe_viewport_state *vp = &ctx->pipe_viewport; |
| const struct pipe_scissor_state *ss = &ctx->scissor; |
| const struct pipe_rasterizer_state *rast = &ctx->rasterizer->base; |
| const struct pipe_framebuffer_state *fb = &ctx->pipe_framebuffer; |
| |
| /* Derive min/max from translate/scale. Note since |x| >= 0 by |
| * definition, we have that -|x| <= |x| hence translate - |scale| <= |
| * translate + |scale|, so the ordering is correct here. */ |
| float vp_minx = vp->translate[0] - fabsf(vp->scale[0]); |
| float vp_maxx = vp->translate[0] + fabsf(vp->scale[0]); |
| float vp_miny = vp->translate[1] - fabsf(vp->scale[1]); |
| float vp_maxy = vp->translate[1] + fabsf(vp->scale[1]); |
| float minz = (vp->translate[2] - fabsf(vp->scale[2])); |
| float maxz = (vp->translate[2] + fabsf(vp->scale[2])); |
| |
| /* Scissor to the intersection of viewport and to the scissor, clamped |
| * to the framebuffer */ |
| |
| unsigned minx = MIN2(fb->width, MAX2((int) vp_minx, 0)); |
| unsigned maxx = MIN2(fb->width, MAX2((int) vp_maxx, 0)); |
| unsigned miny = MIN2(fb->height, MAX2((int) vp_miny, 0)); |
| unsigned maxy = MIN2(fb->height, MAX2((int) vp_maxy, 0)); |
| |
| if (ss && rast->scissor) { |
| minx = MAX2(ss->minx, minx); |
| miny = MAX2(ss->miny, miny); |
| maxx = MIN2(ss->maxx, maxx); |
| maxy = MIN2(ss->maxy, maxy); |
| } |
| |
| /* Set the range to [1, 1) so max values don't wrap round */ |
| if (maxx == 0 || maxy == 0) |
| maxx = maxy = minx = miny = 1; |
| |
| struct panfrost_ptr T = panfrost_pool_alloc(&batch->pool, MALI_VIEWPORT_LENGTH); |
| |
| pan_pack(T.cpu, VIEWPORT, cfg) { |
| /* [minx, maxx) and [miny, maxy) are exclusive ranges, but |
| * these are inclusive */ |
| cfg.scissor_minimum_x = minx; |
| cfg.scissor_minimum_y = miny; |
| cfg.scissor_maximum_x = maxx - 1; |
| cfg.scissor_maximum_y = maxy - 1; |
| |
| cfg.minimum_z = rast->depth_clip_near ? minz : -INFINITY; |
| cfg.maximum_z = rast->depth_clip_far ? maxz : INFINITY; |
| } |
| |
| panfrost_batch_union_scissor(batch, minx, miny, maxx, maxy); |
| return T.gpu; |
| } |
| |
| static mali_ptr |
| panfrost_map_constant_buffer_gpu(struct panfrost_batch *batch, |
| enum pipe_shader_type st, |
| struct panfrost_constant_buffer *buf, |
| unsigned index) |
| { |
| struct pipe_constant_buffer *cb = &buf->cb[index]; |
| struct panfrost_resource *rsrc = pan_resource(cb->buffer); |
| |
| if (rsrc) { |
| panfrost_batch_add_bo(batch, rsrc->bo, |
| PAN_BO_ACCESS_SHARED | |
| PAN_BO_ACCESS_READ | |
| panfrost_bo_access_for_stage(st)); |
| |
| /* Alignment gauranteed by |
| * PIPE_CAP_CONSTANT_BUFFER_OFFSET_ALIGNMENT */ |
| return rsrc->bo->ptr.gpu + cb->buffer_offset; |
| } else if (cb->user_buffer) { |
| return panfrost_pool_upload_aligned(&batch->pool, |
| cb->user_buffer + |
| cb->buffer_offset, |
| cb->buffer_size, 16); |
| } else { |
| unreachable("No constant buffer"); |
| } |
| } |
| |
| struct sysval_uniform { |
| union { |
| float f[4]; |
| int32_t i[4]; |
| uint32_t u[4]; |
| uint64_t du[2]; |
| }; |
| }; |
| |
| static void |
| panfrost_upload_viewport_scale_sysval(struct panfrost_batch *batch, |
| struct sysval_uniform *uniform) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| const struct pipe_viewport_state *vp = &ctx->pipe_viewport; |
| |
| uniform->f[0] = vp->scale[0]; |
| uniform->f[1] = vp->scale[1]; |
| uniform->f[2] = vp->scale[2]; |
| } |
| |
| static void |
| panfrost_upload_viewport_offset_sysval(struct panfrost_batch *batch, |
| struct sysval_uniform *uniform) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| const struct pipe_viewport_state *vp = &ctx->pipe_viewport; |
| |
| uniform->f[0] = vp->translate[0]; |
| uniform->f[1] = vp->translate[1]; |
| uniform->f[2] = vp->translate[2]; |
| } |
| |
| static void panfrost_upload_txs_sysval(struct panfrost_batch *batch, |
| enum pipe_shader_type st, |
| unsigned int sysvalid, |
| struct sysval_uniform *uniform) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| unsigned texidx = PAN_SYSVAL_ID_TO_TXS_TEX_IDX(sysvalid); |
| unsigned dim = PAN_SYSVAL_ID_TO_TXS_DIM(sysvalid); |
| bool is_array = PAN_SYSVAL_ID_TO_TXS_IS_ARRAY(sysvalid); |
| struct pipe_sampler_view *tex = &ctx->sampler_views[st][texidx]->base; |
| |
| assert(dim); |
| uniform->i[0] = u_minify(tex->texture->width0, tex->u.tex.first_level); |
| |
| if (dim > 1) |
| uniform->i[1] = u_minify(tex->texture->height0, |
| tex->u.tex.first_level); |
| |
| if (dim > 2) |
| uniform->i[2] = u_minify(tex->texture->depth0, |
| tex->u.tex.first_level); |
| |
| if (is_array) |
| uniform->i[dim] = tex->texture->array_size; |
| } |
| |
| static void |
| panfrost_upload_ssbo_sysval(struct panfrost_batch *batch, |
| enum pipe_shader_type st, |
| unsigned ssbo_id, |
| struct sysval_uniform *uniform) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| |
| assert(ctx->ssbo_mask[st] & (1 << ssbo_id)); |
| struct pipe_shader_buffer sb = ctx->ssbo[st][ssbo_id]; |
| |
| /* Compute address */ |
| struct panfrost_bo *bo = pan_resource(sb.buffer)->bo; |
| |
| panfrost_batch_add_bo(batch, bo, |
| PAN_BO_ACCESS_SHARED | PAN_BO_ACCESS_RW | |
| panfrost_bo_access_for_stage(st)); |
| |
| /* Upload address and size as sysval */ |
| uniform->du[0] = bo->ptr.gpu + sb.buffer_offset; |
| uniform->u[2] = sb.buffer_size; |
| } |
| |
| static void |
| panfrost_upload_sampler_sysval(struct panfrost_batch *batch, |
| enum pipe_shader_type st, |
| unsigned samp_idx, |
| struct sysval_uniform *uniform) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| struct pipe_sampler_state *sampl = &ctx->samplers[st][samp_idx]->base; |
| |
| uniform->f[0] = sampl->min_lod; |
| uniform->f[1] = sampl->max_lod; |
| uniform->f[2] = sampl->lod_bias; |
| |
| /* Even without any errata, Midgard represents "no mipmapping" as |
| * fixing the LOD with the clamps; keep behaviour consistent. c.f. |
| * panfrost_create_sampler_state which also explains our choice of |
| * epsilon value (again to keep behaviour consistent) */ |
| |
| if (sampl->min_mip_filter == PIPE_TEX_MIPFILTER_NONE) |
| uniform->f[1] = uniform->f[0] + (1.0/256.0); |
| } |
| |
| static void |
| panfrost_upload_num_work_groups_sysval(struct panfrost_batch *batch, |
| struct sysval_uniform *uniform) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| |
| uniform->u[0] = ctx->compute_grid->grid[0]; |
| uniform->u[1] = ctx->compute_grid->grid[1]; |
| uniform->u[2] = ctx->compute_grid->grid[2]; |
| } |
| |
| static void |
| panfrost_upload_sysvals(struct panfrost_batch *batch, void *buf, |
| struct panfrost_shader_state *ss, |
| enum pipe_shader_type st) |
| { |
| struct sysval_uniform *uniforms = (void *)buf; |
| |
| for (unsigned i = 0; i < ss->sysval_count; ++i) { |
| int sysval = ss->sysval[i]; |
| |
| switch (PAN_SYSVAL_TYPE(sysval)) { |
| case PAN_SYSVAL_VIEWPORT_SCALE: |
| panfrost_upload_viewport_scale_sysval(batch, |
| &uniforms[i]); |
| break; |
| case PAN_SYSVAL_VIEWPORT_OFFSET: |
| panfrost_upload_viewport_offset_sysval(batch, |
| &uniforms[i]); |
| break; |
| case PAN_SYSVAL_TEXTURE_SIZE: |
| panfrost_upload_txs_sysval(batch, st, |
| PAN_SYSVAL_ID(sysval), |
| &uniforms[i]); |
| break; |
| case PAN_SYSVAL_SSBO: |
| panfrost_upload_ssbo_sysval(batch, st, |
| PAN_SYSVAL_ID(sysval), |
| &uniforms[i]); |
| break; |
| case PAN_SYSVAL_NUM_WORK_GROUPS: |
| panfrost_upload_num_work_groups_sysval(batch, |
| &uniforms[i]); |
| break; |
| case PAN_SYSVAL_SAMPLER: |
| panfrost_upload_sampler_sysval(batch, st, |
| PAN_SYSVAL_ID(sysval), |
| &uniforms[i]); |
| break; |
| default: |
| assert(0); |
| } |
| } |
| } |
| |
| static const void * |
| panfrost_map_constant_buffer_cpu(struct panfrost_constant_buffer *buf, |
| unsigned index) |
| { |
| struct pipe_constant_buffer *cb = &buf->cb[index]; |
| struct panfrost_resource *rsrc = pan_resource(cb->buffer); |
| |
| if (rsrc) |
| return rsrc->bo->ptr.cpu; |
| else if (cb->user_buffer) |
| return cb->user_buffer; |
| else |
| unreachable("No constant buffer"); |
| } |
| |
| mali_ptr |
| panfrost_emit_const_buf(struct panfrost_batch *batch, |
| enum pipe_shader_type stage, |
| mali_ptr *push_constants) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| struct panfrost_shader_variants *all = ctx->shader[stage]; |
| |
| if (!all) |
| return 0; |
| |
| struct panfrost_constant_buffer *buf = &ctx->constant_buffer[stage]; |
| |
| struct panfrost_shader_state *ss = &all->variants[all->active_variant]; |
| |
| /* Uniforms are implicitly UBO #0 */ |
| bool has_uniforms = buf->enabled_mask & (1 << 0); |
| |
| /* Allocate room for the sysval and the uniforms */ |
| size_t sys_size = sizeof(float) * 4 * ss->sysval_count; |
| size_t uniform_size = has_uniforms ? (buf->cb[0].buffer_size) : 0; |
| size_t size = sys_size + uniform_size; |
| struct panfrost_ptr transfer = |
| panfrost_pool_alloc_aligned(&batch->pool, size, 16); |
| |
| /* Upload sysvals requested by the shader */ |
| panfrost_upload_sysvals(batch, transfer.cpu, ss, stage); |
| |
| /* Upload uniforms */ |
| if (has_uniforms && uniform_size) { |
| const void *cpu = panfrost_map_constant_buffer_cpu(buf, 0); |
| memcpy(transfer.cpu + sys_size, cpu, uniform_size); |
| } |
| |
| /* Next up, attach UBOs. UBO #0 is the uniforms we just |
| * uploaded, so it's always included. The count is the highest UBO |
| * addressable -- gaps are included. */ |
| |
| unsigned ubo_count = 32 - __builtin_clz(buf->enabled_mask | 1); |
| |
| size_t sz = MALI_UNIFORM_BUFFER_LENGTH * ubo_count; |
| struct panfrost_ptr ubos = |
| panfrost_pool_alloc_aligned(&batch->pool, sz, |
| MALI_UNIFORM_BUFFER_LENGTH); |
| |
| uint64_t *ubo_ptr = (uint64_t *) ubos.cpu; |
| |
| /* Upload uniforms as a UBO */ |
| |
| if (size) { |
| pan_pack(ubo_ptr, UNIFORM_BUFFER, cfg) { |
| cfg.entries = DIV_ROUND_UP(size, 16); |
| cfg.pointer = transfer.gpu; |
| } |
| } else { |
| *ubo_ptr = 0; |
| } |
| |
| /* The rest are honest-to-goodness UBOs */ |
| |
| for (unsigned ubo = 1; ubo < ubo_count; ++ubo) { |
| size_t usz = buf->cb[ubo].buffer_size; |
| bool enabled = buf->enabled_mask & (1 << ubo); |
| bool empty = usz == 0; |
| |
| if (!enabled || empty) { |
| ubo_ptr[ubo] = 0; |
| continue; |
| } |
| |
| /* Issue (57) for the ARB_uniform_buffer_object spec says that |
| * the buffer can be larger than the uniform data inside it, |
| * so clamp ubo size to what hardware supports. */ |
| |
| pan_pack(ubo_ptr + ubo, UNIFORM_BUFFER, cfg) { |
| cfg.entries = MIN2(DIV_ROUND_UP(usz, 16), 1 << 12); |
| cfg.pointer = panfrost_map_constant_buffer_gpu(batch, |
| stage, buf, ubo); |
| } |
| } |
| |
| if (ss->uniform_count) |
| *push_constants = transfer.gpu; |
| |
| buf->dirty_mask = 0; |
| return ubos.gpu; |
| } |
| |
| mali_ptr |
| panfrost_emit_shared_memory(struct panfrost_batch *batch, |
| const struct pipe_grid_info *info) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| struct panfrost_device *dev = pan_device(ctx->base.screen); |
| struct panfrost_shader_variants *all = ctx->shader[PIPE_SHADER_COMPUTE]; |
| struct panfrost_shader_state *ss = &all->variants[all->active_variant]; |
| unsigned single_size = util_next_power_of_two(MAX2(ss->shared_size, |
| 128)); |
| |
| unsigned instances = |
| util_next_power_of_two(info->grid[0]) * |
| util_next_power_of_two(info->grid[1]) * |
| util_next_power_of_two(info->grid[2]); |
| |
| unsigned shared_size = single_size * instances * dev->core_count; |
| struct panfrost_bo *bo = panfrost_batch_get_shared_memory(batch, |
| shared_size, |
| 1); |
| struct panfrost_ptr t = |
| panfrost_pool_alloc_aligned(&batch->pool, |
| MALI_LOCAL_STORAGE_LENGTH, |
| 64); |
| |
| pan_pack(t.cpu, LOCAL_STORAGE, ls) { |
| ls.wls_base_pointer = bo->ptr.gpu; |
| ls.wls_instances = instances; |
| ls.wls_size_scale = util_logbase2(single_size) + 1; |
| }; |
| |
| return t.gpu; |
| } |
| |
| static mali_ptr |
| panfrost_get_tex_desc(struct panfrost_batch *batch, |
| enum pipe_shader_type st, |
| struct panfrost_sampler_view *view) |
| { |
| if (!view) |
| return (mali_ptr) 0; |
| |
| struct pipe_sampler_view *pview = &view->base; |
| struct panfrost_resource *rsrc = pan_resource(pview->texture); |
| |
| /* Add the BO to the job so it's retained until the job is done. */ |
| |
| panfrost_batch_add_bo(batch, rsrc->bo, |
| PAN_BO_ACCESS_SHARED | PAN_BO_ACCESS_READ | |
| panfrost_bo_access_for_stage(st)); |
| |
| panfrost_batch_add_bo(batch, view->bo, |
| PAN_BO_ACCESS_SHARED | PAN_BO_ACCESS_READ | |
| panfrost_bo_access_for_stage(st)); |
| |
| return view->bo->ptr.gpu; |
| } |
| |
| static void |
| panfrost_update_sampler_view(struct panfrost_sampler_view *view, |
| struct pipe_context *pctx) |
| { |
| struct panfrost_resource *rsrc = pan_resource(view->base.texture); |
| if (view->texture_bo != rsrc->bo->ptr.gpu || |
| view->modifier != rsrc->modifier) { |
| panfrost_bo_unreference(view->bo); |
| panfrost_create_sampler_view_bo(view, pctx, &rsrc->base); |
| } |
| } |
| |
| mali_ptr |
| panfrost_emit_texture_descriptors(struct panfrost_batch *batch, |
| enum pipe_shader_type stage) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| struct panfrost_device *device = pan_device(ctx->base.screen); |
| |
| if (!ctx->sampler_view_count[stage]) |
| return 0; |
| |
| if (device->quirks & IS_BIFROST) { |
| struct panfrost_ptr T = panfrost_pool_alloc_aligned(&batch->pool, |
| MALI_BIFROST_TEXTURE_LENGTH * |
| ctx->sampler_view_count[stage], |
| MALI_BIFROST_TEXTURE_LENGTH); |
| |
| struct mali_bifrost_texture_packed *out = |
| (struct mali_bifrost_texture_packed *) T.cpu; |
| |
| for (int i = 0; i < ctx->sampler_view_count[stage]; ++i) { |
| struct panfrost_sampler_view *view = ctx->sampler_views[stage][i]; |
| struct pipe_sampler_view *pview = &view->base; |
| struct panfrost_resource *rsrc = pan_resource(pview->texture); |
| |
| panfrost_update_sampler_view(view, &ctx->base); |
| out[i] = view->bifrost_descriptor; |
| |
| /* Add the BOs to the job so they are retained until the job is done. */ |
| |
| panfrost_batch_add_bo(batch, rsrc->bo, |
| PAN_BO_ACCESS_SHARED | PAN_BO_ACCESS_READ | |
| panfrost_bo_access_for_stage(stage)); |
| |
| panfrost_batch_add_bo(batch, view->bo, |
| PAN_BO_ACCESS_SHARED | PAN_BO_ACCESS_READ | |
| panfrost_bo_access_for_stage(stage)); |
| } |
| |
| return T.gpu; |
| } else { |
| uint64_t trampolines[PIPE_MAX_SHADER_SAMPLER_VIEWS]; |
| |
| for (int i = 0; i < ctx->sampler_view_count[stage]; ++i) { |
| struct panfrost_sampler_view *view = ctx->sampler_views[stage][i]; |
| |
| panfrost_update_sampler_view(view, &ctx->base); |
| |
| trampolines[i] = panfrost_get_tex_desc(batch, stage, view); |
| } |
| |
| return panfrost_pool_upload_aligned(&batch->pool, trampolines, |
| sizeof(uint64_t) * |
| ctx->sampler_view_count[stage], |
| sizeof(uint64_t)); |
| } |
| } |
| |
| mali_ptr |
| panfrost_emit_sampler_descriptors(struct panfrost_batch *batch, |
| enum pipe_shader_type stage) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| |
| if (!ctx->sampler_count[stage]) |
| return 0; |
| |
| size_t desc_size = MALI_BIFROST_SAMPLER_LENGTH; |
| assert(MALI_BIFROST_SAMPLER_LENGTH == MALI_MIDGARD_SAMPLER_LENGTH); |
| |
| size_t sz = desc_size * ctx->sampler_count[stage]; |
| struct panfrost_ptr T = panfrost_pool_alloc_aligned(&batch->pool, sz, desc_size); |
| struct mali_midgard_sampler_packed *out = (struct mali_midgard_sampler_packed *) T.cpu; |
| |
| for (unsigned i = 0; i < ctx->sampler_count[stage]; ++i) |
| out[i] = ctx->samplers[stage][i]->hw; |
| |
| return T.gpu; |
| } |
| |
| mali_ptr |
| panfrost_emit_vertex_data(struct panfrost_batch *batch, |
| mali_ptr *buffers) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| struct panfrost_device *dev = pan_device(ctx->base.screen); |
| bool is_bifrost = !!(dev->quirks & IS_BIFROST); |
| struct panfrost_vertex_state *so = ctx->vertex; |
| struct panfrost_shader_state *vs = panfrost_get_shader_state(ctx, PIPE_SHADER_VERTEX); |
| |
| /* Worst case: everything is NPOT, which is only possible if instancing |
| * is enabled. Otherwise single record is gauranteed */ |
| struct panfrost_ptr S = panfrost_pool_alloc_aligned(&batch->pool, |
| MALI_ATTRIBUTE_BUFFER_LENGTH * (vs->attribute_count + 1) * |
| (ctx->instance_count > 1 ? 2 : 1), |
| MALI_ATTRIBUTE_BUFFER_LENGTH * 2); |
| |
| struct panfrost_ptr T = panfrost_pool_alloc_aligned(&batch->pool, |
| MALI_ATTRIBUTE_LENGTH * vs->attribute_count, |
| MALI_ATTRIBUTE_LENGTH); |
| |
| struct mali_attribute_buffer_packed *bufs = |
| (struct mali_attribute_buffer_packed *) S.cpu; |
| |
| /* Determine (n + 1)'th index to suppress prefetch on Bifrost */ |
| unsigned last = vs->attribute_count * ((ctx->instance_count > 1) ? 2 : 1); |
| memset(bufs + last, 0, sizeof(*bufs)); |
| |
| struct mali_attribute_packed *out = |
| (struct mali_attribute_packed *) T.cpu; |
| |
| unsigned attrib_to_buffer[PIPE_MAX_ATTRIBS] = { 0 }; |
| unsigned k = 0; |
| |
| for (unsigned i = 0; i < so->num_elements; ++i) { |
| /* We map buffers 1:1 with the attributes, which |
| * means duplicating some vertex buffers (who cares? aside from |
| * maybe some caching implications but I somehow doubt that |
| * matters) */ |
| |
| struct pipe_vertex_element *elem = &so->pipe[i]; |
| unsigned vbi = elem->vertex_buffer_index; |
| attrib_to_buffer[i] = k; |
| |
| if (!(ctx->vb_mask & (1 << vbi))) |
| continue; |
| |
| struct pipe_vertex_buffer *buf = &ctx->vertex_buffers[vbi]; |
| struct panfrost_resource *rsrc; |
| |
| rsrc = pan_resource(buf->buffer.resource); |
| if (!rsrc) |
| continue; |
| |
| /* Add a dependency of the batch on the vertex buffer */ |
| panfrost_batch_add_bo(batch, rsrc->bo, |
| PAN_BO_ACCESS_SHARED | |
| PAN_BO_ACCESS_READ | |
| PAN_BO_ACCESS_VERTEX_TILER); |
| |
| /* Mask off lower bits, see offset fixup below */ |
| mali_ptr raw_addr = rsrc->bo->ptr.gpu + buf->buffer_offset; |
| mali_ptr addr = raw_addr & ~63; |
| |
| /* Since we advanced the base pointer, we shrink the buffer |
| * size, but add the offset we subtracted */ |
| unsigned size = rsrc->base.width0 + (raw_addr - addr) |
| - buf->buffer_offset; |
| |
| /* When there is a divisor, the hardware-level divisor is |
| * the product of the instance divisor and the padded count */ |
| unsigned divisor = elem->instance_divisor; |
| unsigned hw_divisor = ctx->padded_count * divisor; |
| unsigned stride = buf->stride; |
| |
| /* If there's a divisor(=1) but no instancing, we want every |
| * attribute to be the same */ |
| |
| if (divisor && ctx->instance_count == 1) |
| stride = 0; |
| |
| if (!divisor || ctx->instance_count <= 1) { |
| pan_pack(bufs + k, ATTRIBUTE_BUFFER, cfg) { |
| if (ctx->instance_count > 1) { |
| cfg.type = MALI_ATTRIBUTE_TYPE_1D_MODULUS; |
| cfg.divisor = ctx->padded_count; |
| } |
| |
| cfg.pointer = addr; |
| cfg.stride = stride; |
| cfg.size = size; |
| } |
| } else if (util_is_power_of_two_or_zero(hw_divisor)) { |
| pan_pack(bufs + k, ATTRIBUTE_BUFFER, cfg) { |
| cfg.type = MALI_ATTRIBUTE_TYPE_1D_POT_DIVISOR; |
| cfg.pointer = addr; |
| cfg.stride = stride; |
| cfg.size = size; |
| cfg.divisor_r = __builtin_ctz(hw_divisor); |
| } |
| |
| } else { |
| unsigned shift = 0, extra_flags = 0; |
| |
| unsigned magic_divisor = |
| panfrost_compute_magic_divisor(hw_divisor, &shift, &extra_flags); |
| |
| pan_pack(bufs + k, ATTRIBUTE_BUFFER, cfg) { |
| cfg.type = MALI_ATTRIBUTE_TYPE_1D_NPOT_DIVISOR; |
| cfg.pointer = addr; |
| cfg.stride = stride; |
| cfg.size = size; |
| |
| cfg.divisor_r = shift; |
| cfg.divisor_e = extra_flags; |
| } |
| |
| pan_pack(bufs + k + 1, ATTRIBUTE_BUFFER_CONTINUATION_NPOT, cfg) { |
| cfg.divisor_numerator = magic_divisor; |
| cfg.divisor = divisor; |
| } |
| |
| ++k; |
| } |
| |
| ++k; |
| } |
| |
| /* Add special gl_VertexID/gl_InstanceID buffers */ |
| |
| if (unlikely(vs->attribute_count >= PAN_VERTEX_ID)) { |
| panfrost_vertex_id(ctx->padded_count, &bufs[k], ctx->instance_count > 1); |
| |
| pan_pack(out + PAN_VERTEX_ID, ATTRIBUTE, cfg) { |
| cfg.buffer_index = k++; |
| cfg.format = so->formats[PAN_VERTEX_ID]; |
| } |
| |
| panfrost_instance_id(ctx->padded_count, &bufs[k], ctx->instance_count > 1); |
| |
| pan_pack(out + PAN_INSTANCE_ID, ATTRIBUTE, cfg) { |
| cfg.buffer_index = k++; |
| cfg.format = so->formats[PAN_INSTANCE_ID]; |
| } |
| } |
| |
| /* We need an empty attrib buf to stop the prefetching on Bifrost */ |
| if (is_bifrost) |
| pan_pack(&bufs[k], ATTRIBUTE_BUFFER, cfg); |
| |
| /* Attribute addresses require 64-byte alignment, so let: |
| * |
| * base' = base & ~63 = base - (base & 63) |
| * offset' = offset + (base & 63) |
| * |
| * Since base' + offset' = base + offset, these are equivalent |
| * addressing modes and now base is 64 aligned. |
| */ |
| |
| for (unsigned i = 0; i < so->num_elements; ++i) { |
| unsigned vbi = so->pipe[i].vertex_buffer_index; |
| struct pipe_vertex_buffer *buf = &ctx->vertex_buffers[vbi]; |
| |
| /* Adjust by the masked off bits of the offset. Make sure we |
| * read src_offset from so->hw (which is not GPU visible) |
| * rather than target (which is) due to caching effects */ |
| |
| unsigned src_offset = so->pipe[i].src_offset; |
| |
| /* BOs aligned to 4k so guaranteed aligned to 64 */ |
| src_offset += (buf->buffer_offset & 63); |
| |
| /* Also, somewhat obscurely per-instance data needs to be |
| * offset in response to a delayed start in an indexed draw */ |
| |
| if (so->pipe[i].instance_divisor && ctx->instance_count > 1) |
| src_offset -= buf->stride * ctx->offset_start; |
| |
| pan_pack(out + i, ATTRIBUTE, cfg) { |
| cfg.buffer_index = attrib_to_buffer[i]; |
| cfg.format = so->formats[i]; |
| cfg.offset = src_offset; |
| } |
| } |
| |
| *buffers = S.gpu; |
| return T.gpu; |
| } |
| |
| static mali_ptr |
| panfrost_emit_varyings(struct panfrost_batch *batch, |
| struct mali_attribute_buffer_packed *slot, |
| unsigned stride, unsigned count) |
| { |
| unsigned size = stride * count; |
| mali_ptr ptr = panfrost_pool_alloc_aligned(&batch->invisible_pool, size, 64).gpu; |
| |
| pan_pack(slot, ATTRIBUTE_BUFFER, cfg) { |
| cfg.stride = stride; |
| cfg.size = size; |
| cfg.pointer = ptr; |
| } |
| |
| return ptr; |
| } |
| |
| static unsigned |
| panfrost_streamout_offset(unsigned stride, |
| struct pipe_stream_output_target *target) |
| { |
| return (target->buffer_offset + (pan_so_target(target)->offset * stride * 4)) & 63; |
| } |
| |
| static void |
| panfrost_emit_streamout(struct panfrost_batch *batch, |
| struct mali_attribute_buffer_packed *slot, |
| unsigned stride_words, unsigned count, |
| struct pipe_stream_output_target *target) |
| { |
| unsigned stride = stride_words * 4; |
| unsigned max_size = target->buffer_size; |
| unsigned expected_size = stride * count; |
| |
| /* Grab the BO and bind it to the batch */ |
| struct panfrost_bo *bo = pan_resource(target->buffer)->bo; |
| |
| /* Varyings are WRITE from the perspective of the VERTEX but READ from |
| * the perspective of the TILER and FRAGMENT. |
| */ |
| panfrost_batch_add_bo(batch, bo, |
| PAN_BO_ACCESS_SHARED | |
| PAN_BO_ACCESS_RW | |
| PAN_BO_ACCESS_VERTEX_TILER | |
| PAN_BO_ACCESS_FRAGMENT); |
| |
| /* We will have an offset applied to get alignment */ |
| mali_ptr addr = bo->ptr.gpu + target->buffer_offset + (pan_so_target(target)->offset * stride); |
| |
| pan_pack(slot, ATTRIBUTE_BUFFER, cfg) { |
| cfg.pointer = (addr & ~63); |
| cfg.stride = stride; |
| cfg.size = MIN2(max_size, expected_size) + (addr & 63); |
| } |
| } |
| |
| /* Helpers for manipulating stream out information so we can pack varyings |
| * accordingly. Compute the src_offset for a given captured varying */ |
| |
| static struct pipe_stream_output * |
| pan_get_so(struct pipe_stream_output_info *info, gl_varying_slot loc) |
| { |
| for (unsigned i = 0; i < info->num_outputs; ++i) { |
| if (info->output[i].register_index == loc) |
| return &info->output[i]; |
| } |
| |
| unreachable("Varying not captured"); |
| } |
| |
| static unsigned |
| pan_varying_size(enum mali_format fmt) |
| { |
| unsigned type = MALI_EXTRACT_TYPE(fmt); |
| unsigned chan = MALI_EXTRACT_CHANNELS(fmt); |
| unsigned bits = MALI_EXTRACT_BITS(fmt); |
| unsigned bpc = 0; |
| |
| if (bits == MALI_CHANNEL_FLOAT) { |
| /* No doubles */ |
| bool fp16 = (type == MALI_FORMAT_SINT); |
| assert(fp16 || (type == MALI_FORMAT_UNORM)); |
| |
| bpc = fp16 ? 2 : 4; |
| } else { |
| assert(type >= MALI_FORMAT_SNORM && type <= MALI_FORMAT_SINT); |
| |
| /* See the enums */ |
| bits = 1 << bits; |
| assert(bits >= 8); |
| bpc = bits / 8; |
| } |
| |
| return bpc * chan; |
| } |
| |
| /* Indices for named (non-XFB) varyings that are present. These are packed |
| * tightly so they correspond to a bitfield present (P) indexed by (1 << |
| * PAN_VARY_*). This has the nice property that you can lookup the buffer index |
| * of a given special field given a shift S by: |
| * |
| * idx = popcount(P & ((1 << S) - 1)) |
| * |
| * That is... look at all of the varyings that come earlier and count them, the |
| * count is the new index since plus one. Likewise, the total number of special |
| * buffers required is simply popcount(P) |
| */ |
| |
| enum pan_special_varying { |
| PAN_VARY_GENERAL = 0, |
| PAN_VARY_POSITION = 1, |
| PAN_VARY_PSIZ = 2, |
| PAN_VARY_PNTCOORD = 3, |
| PAN_VARY_FACE = 4, |
| PAN_VARY_FRAGCOORD = 5, |
| |
| /* Keep last */ |
| PAN_VARY_MAX, |
| }; |
| |
| /* Given a varying, figure out which index it correpsonds to */ |
| |
| static inline unsigned |
| pan_varying_index(unsigned present, enum pan_special_varying v) |
| { |
| unsigned mask = (1 << v) - 1; |
| return util_bitcount(present & mask); |
| } |
| |
| /* Get the base offset for XFB buffers, which by convention come after |
| * everything else. Wrapper function for semantic reasons; by construction this |
| * is just popcount. */ |
| |
| static inline unsigned |
| pan_xfb_base(unsigned present) |
| { |
| return util_bitcount(present); |
| } |
| |
| /* Computes the present mask for varyings so we can start emitting varying records */ |
| |
| static inline unsigned |
| pan_varying_present( |
| struct panfrost_shader_state *vs, |
| struct panfrost_shader_state *fs, |
| unsigned quirks, |
| uint16_t point_coord_mask) |
| { |
| /* At the moment we always emit general and position buffers. Not |
| * strictly necessary but usually harmless */ |
| |
| unsigned present = (1 << PAN_VARY_GENERAL) | (1 << PAN_VARY_POSITION); |
| |
| /* Enable special buffers by the shader info */ |
| |
| if (vs->writes_point_size) |
| present |= (1 << PAN_VARY_PSIZ); |
| |
| if (fs->reads_point_coord) |
| present |= (1 << PAN_VARY_PNTCOORD); |
| |
| if (fs->reads_face) |
| present |= (1 << PAN_VARY_FACE); |
| |
| if (fs->reads_frag_coord && !(quirks & IS_BIFROST)) |
| present |= (1 << PAN_VARY_FRAGCOORD); |
| |
| /* Also, if we have a point sprite, we need a point coord buffer */ |
| |
| for (unsigned i = 0; i < fs->varying_count; i++) { |
| gl_varying_slot loc = fs->varyings_loc[i]; |
| |
| if (util_varying_is_point_coord(loc, point_coord_mask)) |
| present |= (1 << PAN_VARY_PNTCOORD); |
| } |
| |
| return present; |
| } |
| |
| /* Emitters for varying records */ |
| |
| static void |
| pan_emit_vary(struct mali_attribute_packed *out, |
| unsigned present, enum pan_special_varying buf, |
| unsigned quirks, enum mali_format format, |
| unsigned offset) |
| { |
| unsigned nr_channels = MALI_EXTRACT_CHANNELS(format); |
| unsigned swizzle = quirks & HAS_SWIZZLES ? |
| panfrost_get_default_swizzle(nr_channels) : |
| panfrost_bifrost_swizzle(nr_channels); |
| |
| pan_pack(out, ATTRIBUTE, cfg) { |
| cfg.buffer_index = pan_varying_index(present, buf); |
| cfg.offset_enable = quirks & IS_BIFROST ? false : true; |
| cfg.format = (format << 12) | swizzle; |
| cfg.offset = offset; |
| } |
| } |
| |
| /* General varying that is unused */ |
| |
| static void |
| pan_emit_vary_only(struct mali_attribute_packed *out, |
| unsigned present, unsigned quirks) |
| { |
| pan_emit_vary(out, present, 0, quirks, MALI_CONSTANT, 0); |
| } |
| |
| /* Special records */ |
| |
| static const enum mali_format pan_varying_formats[PAN_VARY_MAX] = { |
| [PAN_VARY_POSITION] = MALI_SNAP_4, |
| [PAN_VARY_PSIZ] = MALI_R16F, |
| [PAN_VARY_PNTCOORD] = MALI_R16F, |
| [PAN_VARY_FACE] = MALI_R32I, |
| [PAN_VARY_FRAGCOORD] = MALI_RGBA32F |
| }; |
| |
| static void |
| pan_emit_vary_special(struct mali_attribute_packed *out, |
| unsigned present, enum pan_special_varying buf, |
| unsigned quirks) |
| { |
| assert(buf < PAN_VARY_MAX); |
| pan_emit_vary(out, present, buf, quirks, pan_varying_formats[buf], 0); |
| } |
| |
| static enum mali_format |
| pan_xfb_format(enum mali_format format, unsigned nr) |
| { |
| if (MALI_EXTRACT_BITS(format) == MALI_CHANNEL_FLOAT) |
| return MALI_R32F | MALI_NR_CHANNELS(nr); |
| else |
| return MALI_EXTRACT_TYPE(format) | MALI_NR_CHANNELS(nr) | MALI_CHANNEL_32; |
| } |
| |
| /* Transform feedback records. Note struct pipe_stream_output is (if packed as |
| * a bitfield) 32-bit, smaller than a 64-bit pointer, so may as well pass by |
| * value. */ |
| |
| static void |
| pan_emit_vary_xfb(struct mali_attribute_packed *out, |
| unsigned present, |
| unsigned max_xfb, |
| unsigned *streamout_offsets, |
| unsigned quirks, |
| enum mali_format format, |
| struct pipe_stream_output o) |
| { |
| unsigned swizzle = quirks & HAS_SWIZZLES ? |
| panfrost_get_default_swizzle(o.num_components) : |
| panfrost_bifrost_swizzle(o.num_components); |
| |
| pan_pack(out, ATTRIBUTE, cfg) { |
| /* XFB buffers come after everything else */ |
| cfg.buffer_index = pan_xfb_base(present) + o.output_buffer; |
| cfg.offset_enable = quirks & IS_BIFROST ? false : true; |
| |
| /* Override number of channels and precision to highp */ |
| cfg.format = (pan_xfb_format(format, o.num_components) << 12) | swizzle; |
| |
| /* Apply given offsets together */ |
| cfg.offset = (o.dst_offset * 4) /* dwords */ |
| + streamout_offsets[o.output_buffer]; |
| } |
| } |
| |
| /* Determine if we should capture a varying for XFB. This requires actually |
| * having a buffer for it. If we don't capture it, we'll fallback to a general |
| * varying path (linked or unlinked, possibly discarding the write) */ |
| |
| static bool |
| panfrost_xfb_captured(struct panfrost_shader_state *xfb, |
| unsigned loc, unsigned max_xfb) |
| { |
| if (!(xfb->so_mask & (1ll << loc))) |
| return false; |
| |
| struct pipe_stream_output *o = pan_get_so(&xfb->stream_output, loc); |
| return o->output_buffer < max_xfb; |
| } |
| |
| static void |
| pan_emit_general_varying(struct mali_attribute_packed *out, |
| struct panfrost_shader_state *other, |
| struct panfrost_shader_state *xfb, |
| gl_varying_slot loc, |
| enum mali_format format, |
| unsigned present, |
| unsigned quirks, |
| unsigned *gen_offsets, |
| enum mali_format *gen_formats, |
| unsigned *gen_stride, |
| unsigned idx, |
| bool should_alloc) |
| { |
| /* Check if we're linked */ |
| signed other_idx = -1; |
| |
| for (unsigned j = 0; j < other->varying_count; ++j) { |
| if (other->varyings_loc[j] == loc) { |
| other_idx = j; |
| break; |
| } |
| } |
| |
| if (other_idx < 0) { |
| pan_emit_vary_only(out, present, quirks); |
| return; |
| } |
| |
| unsigned offset = gen_offsets[other_idx]; |
| |
| if (should_alloc) { |
| /* We're linked, so allocate a space via a watermark allocation */ |
| enum mali_format alt = other->varyings[other_idx]; |
| |
| /* Do interpolation at minimum precision */ |
| unsigned size_main = pan_varying_size(format); |
| unsigned size_alt = pan_varying_size(alt); |
| unsigned size = MIN2(size_main, size_alt); |
| |
| /* If a varying is marked for XFB but not actually captured, we |
| * should match the format to the format that would otherwise |
| * be used for XFB, since dEQP checks for invariance here. It's |
| * unclear if this is required by the spec. */ |
| |
| if (xfb->so_mask & (1ull << loc)) { |
| struct pipe_stream_output *o = pan_get_so(&xfb->stream_output, loc); |
| format = pan_xfb_format(format, o->num_components); |
| size = pan_varying_size(format); |
| } else if (size == size_alt) { |
| format = alt; |
| } |
| |
| gen_offsets[idx] = *gen_stride; |
| gen_formats[other_idx] = format; |
| offset = *gen_stride; |
| *gen_stride += size; |
| } |
| |
| pan_emit_vary(out, present, PAN_VARY_GENERAL, quirks, format, offset); |
| } |
| |
| /* Higher-level wrapper around all of the above, classifying a varying into one |
| * of the above types */ |
| |
| static void |
| panfrost_emit_varying( |
| struct mali_attribute_packed *out, |
| struct panfrost_shader_state *stage, |
| struct panfrost_shader_state *other, |
| struct panfrost_shader_state *xfb, |
| unsigned present, |
| uint16_t point_sprite_mask, |
| unsigned max_xfb, |
| unsigned *streamout_offsets, |
| unsigned quirks, |
| unsigned *gen_offsets, |
| enum mali_format *gen_formats, |
| unsigned *gen_stride, |
| unsigned idx, |
| bool should_alloc, |
| bool is_fragment) |
| { |
| gl_varying_slot loc = stage->varyings_loc[idx]; |
| enum mali_format format = stage->varyings[idx]; |
| |
| /* Override format to match linkage */ |
| if (!should_alloc && gen_formats[idx]) |
| format = gen_formats[idx]; |
| |
| if (util_varying_is_point_coord(loc, point_sprite_mask)) { |
| pan_emit_vary_special(out, present, PAN_VARY_PNTCOORD, quirks); |
| } else if (panfrost_xfb_captured(xfb, loc, max_xfb)) { |
| struct pipe_stream_output *o = pan_get_so(&xfb->stream_output, loc); |
| pan_emit_vary_xfb(out, present, max_xfb, streamout_offsets, quirks, format, *o); |
| } else if (loc == VARYING_SLOT_POS) { |
| if (is_fragment) |
| pan_emit_vary_special(out, present, PAN_VARY_FRAGCOORD, quirks); |
| else |
| pan_emit_vary_special(out, present, PAN_VARY_POSITION, quirks); |
| } else if (loc == VARYING_SLOT_PSIZ) { |
| pan_emit_vary_special(out, present, PAN_VARY_PSIZ, quirks); |
| } else if (loc == VARYING_SLOT_PNTC) { |
| pan_emit_vary_special(out, present, PAN_VARY_PNTCOORD, quirks); |
| } else if (loc == VARYING_SLOT_FACE) { |
| pan_emit_vary_special(out, present, PAN_VARY_FACE, quirks); |
| } else { |
| pan_emit_general_varying(out, other, xfb, loc, format, present, |
| quirks, gen_offsets, gen_formats, gen_stride, |
| idx, should_alloc); |
| } |
| } |
| |
| static void |
| pan_emit_special_input(struct mali_attribute_buffer_packed *out, |
| unsigned present, |
| enum pan_special_varying v, |
| unsigned special) |
| { |
| if (present & (1 << v)) { |
| unsigned idx = pan_varying_index(present, v); |
| |
| pan_pack(out + idx, ATTRIBUTE_BUFFER, cfg) { |
| cfg.special = special; |
| cfg.type = 0; |
| } |
| } |
| } |
| |
| void |
| panfrost_emit_varying_descriptor(struct panfrost_batch *batch, |
| unsigned vertex_count, |
| mali_ptr *vs_attribs, |
| mali_ptr *fs_attribs, |
| mali_ptr *buffers, |
| mali_ptr *position, |
| mali_ptr *psiz) |
| { |
| /* Load the shaders */ |
| struct panfrost_context *ctx = batch->ctx; |
| struct panfrost_device *dev = pan_device(ctx->base.screen); |
| struct panfrost_shader_state *vs, *fs; |
| size_t vs_size, fs_size; |
| |
| /* Allocate the varying descriptor */ |
| |
| vs = panfrost_get_shader_state(ctx, PIPE_SHADER_VERTEX); |
| fs = panfrost_get_shader_state(ctx, PIPE_SHADER_FRAGMENT); |
| vs_size = MALI_ATTRIBUTE_LENGTH * vs->varying_count; |
| fs_size = MALI_ATTRIBUTE_LENGTH * fs->varying_count; |
| |
| struct panfrost_ptr trans = panfrost_pool_alloc_aligned( |
| &batch->pool, vs_size + fs_size, MALI_ATTRIBUTE_LENGTH); |
| |
| struct pipe_stream_output_info *so = &vs->stream_output; |
| uint16_t point_coord_mask = ctx->rasterizer->base.sprite_coord_enable; |
| |
| /* TODO: point sprites need lowering on Bifrost */ |
| if (dev->quirks & IS_BIFROST) |
| point_coord_mask = 0; |
| |
| unsigned present = pan_varying_present(vs, fs, dev->quirks, point_coord_mask); |
| |
| /* Check if this varying is linked by us. This is the case for |
| * general-purpose, non-captured varyings. If it is, link it. If it's |
| * not, use the provided stream out information to determine the |
| * offset, since it was already linked for us. */ |
| |
| unsigned gen_offsets[32]; |
| enum mali_format gen_formats[32]; |
| memset(gen_offsets, 0, sizeof(gen_offsets)); |
| memset(gen_formats, 0, sizeof(gen_formats)); |
| |
| unsigned gen_stride = 0; |
| assert(vs->varying_count < ARRAY_SIZE(gen_offsets)); |
| assert(fs->varying_count < ARRAY_SIZE(gen_offsets)); |
| |
| unsigned streamout_offsets[32]; |
| |
| for (unsigned i = 0; i < ctx->streamout.num_targets; ++i) { |
| streamout_offsets[i] = panfrost_streamout_offset( |
| so->stride[i], |
| ctx->streamout.targets[i]); |
| } |
| |
| struct mali_attribute_packed *ovs = (struct mali_attribute_packed *)trans.cpu; |
| struct mali_attribute_packed *ofs = ovs + vs->varying_count; |
| |
| for (unsigned i = 0; i < vs->varying_count; i++) { |
| panfrost_emit_varying(ovs + i, vs, fs, vs, present, 0, |
| ctx->streamout.num_targets, streamout_offsets, |
| dev->quirks, |
| gen_offsets, gen_formats, &gen_stride, i, true, false); |
| } |
| |
| for (unsigned i = 0; i < fs->varying_count; i++) { |
| panfrost_emit_varying(ofs + i, fs, vs, vs, present, point_coord_mask, |
| ctx->streamout.num_targets, streamout_offsets, |
| dev->quirks, |
| gen_offsets, gen_formats, &gen_stride, i, false, true); |
| } |
| |
| unsigned xfb_base = pan_xfb_base(present); |
| struct panfrost_ptr T = panfrost_pool_alloc_aligned(&batch->pool, |
| MALI_ATTRIBUTE_BUFFER_LENGTH * (xfb_base + ctx->streamout.num_targets + 1), |
| MALI_ATTRIBUTE_BUFFER_LENGTH * 2); |
| struct mali_attribute_buffer_packed *varyings = |
| (struct mali_attribute_buffer_packed *) T.cpu; |
| |
| /* Suppress prefetch on Bifrost */ |
| memset(varyings + (xfb_base * ctx->streamout.num_targets), 0, sizeof(*varyings)); |
| |
| /* Emit the stream out buffers */ |
| |
| unsigned out_count = u_stream_outputs_for_vertices(ctx->active_prim, |
| ctx->vertex_count); |
| |
| for (unsigned i = 0; i < ctx->streamout.num_targets; ++i) { |
| panfrost_emit_streamout(batch, &varyings[xfb_base + i], |
| so->stride[i], |
| out_count, |
| ctx->streamout.targets[i]); |
| } |
| |
| panfrost_emit_varyings(batch, |
| &varyings[pan_varying_index(present, PAN_VARY_GENERAL)], |
| gen_stride, vertex_count); |
| |
| /* fp32 vec4 gl_Position */ |
| *position = panfrost_emit_varyings(batch, |
| &varyings[pan_varying_index(present, PAN_VARY_POSITION)], |
| sizeof(float) * 4, vertex_count); |
| |
| if (present & (1 << PAN_VARY_PSIZ)) { |
| *psiz = panfrost_emit_varyings(batch, |
| &varyings[pan_varying_index(present, PAN_VARY_PSIZ)], |
| 2, vertex_count); |
| } |
| |
| pan_emit_special_input(varyings, present, PAN_VARY_PNTCOORD, MALI_ATTRIBUTE_SPECIAL_POINT_COORD); |
| pan_emit_special_input(varyings, present, PAN_VARY_FACE, MALI_ATTRIBUTE_SPECIAL_FRONT_FACING); |
| pan_emit_special_input(varyings, present, PAN_VARY_FRAGCOORD, MALI_ATTRIBUTE_SPECIAL_FRAG_COORD); |
| |
| *buffers = T.gpu; |
| *vs_attribs = trans.gpu; |
| *fs_attribs = trans.gpu + vs_size; |
| } |
| |
| void |
| panfrost_emit_vertex_tiler_jobs(struct panfrost_batch *batch, |
| const struct panfrost_ptr *vertex_job, |
| const struct panfrost_ptr *tiler_job) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| |
| /* If rasterizer discard is enable, only submit the vertex */ |
| |
| unsigned vertex = panfrost_add_job(&batch->pool, &batch->scoreboard, MALI_JOB_TYPE_VERTEX, false, 0, |
| vertex_job, false); |
| |
| if (ctx->rasterizer->base.rasterizer_discard) |
| return; |
| |
| panfrost_add_job(&batch->pool, &batch->scoreboard, MALI_JOB_TYPE_TILER, false, vertex, tiler_job, false); |
| } |
| |
| /* TODO: stop hardcoding this */ |
| mali_ptr |
| panfrost_emit_sample_locations(struct panfrost_batch *batch) |
| { |
| uint16_t locations[] = { |
| 128, 128, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 0, 256, |
| 128, 128, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| 0, 0, |
| }; |
| |
| return panfrost_pool_upload_aligned(&batch->pool, locations, 96 * sizeof(uint16_t), 64); |
| } |