/* * © Copyright 2018 Alyssa Rosenzweig * Copyright © 2014-2017 Broadcom * Copyright (C) 2017 Intel Corporation * * 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 #include #include "pan_context.h" #include "pan_format.h" #include "util/macros.h" #include "util/u_format.h" #include "util/u_inlines.h" #include "util/u_upload_mgr.h" #include "util/u_memory.h" #include "util/u_vbuf.h" #include "util/half_float.h" #include "util/u_helpers.h" #include "util/u_format.h" #include "util/u_prim.h" #include "util/u_prim_restart.h" #include "indices/u_primconvert.h" #include "tgsi/tgsi_parse.h" #include "tgsi/tgsi_from_mesa.h" #include "util/u_math.h" #include "pan_screen.h" #include "pan_blending.h" #include "pan_blend_shaders.h" #include "pan_util.h" /* Framebuffer descriptor */ static struct midgard_tiler_descriptor panfrost_emit_midg_tiler( struct panfrost_context *ctx, unsigned width, unsigned height, unsigned vertex_count) { struct midgard_tiler_descriptor t = {}; struct panfrost_job *batch = panfrost_get_job_for_fbo(ctx); t.hierarchy_mask = panfrost_choose_hierarchy_mask(width, height, vertex_count); /* Compute the polygon header size and use that to offset the body */ unsigned header_size = panfrost_tiler_header_size( width, height, t.hierarchy_mask); t.polygon_list_size = panfrost_tiler_full_size( width, height, t.hierarchy_mask); /* Sanity check */ if (t.hierarchy_mask) { t.polygon_list = panfrost_job_get_polygon_list(batch, header_size + t.polygon_list_size); /* Allow the entire tiler heap */ t.heap_start = ctx->tiler_heap.bo->gpu; t.heap_end = ctx->tiler_heap.bo->gpu + ctx->tiler_heap.bo->size; } else { /* The tiler is disabled, so don't allow the tiler heap */ t.heap_start = ctx->tiler_heap.bo->gpu; t.heap_end = t.heap_start; /* Use a dummy polygon list */ t.polygon_list = ctx->tiler_dummy.bo->gpu; /* Disable the tiler */ t.hierarchy_mask |= MALI_TILER_DISABLED; } t.polygon_list_body = t.polygon_list + header_size; return t; } struct mali_single_framebuffer panfrost_emit_sfbd(struct panfrost_context *ctx, unsigned vertex_count) { unsigned width = ctx->pipe_framebuffer.width; unsigned height = ctx->pipe_framebuffer.height; struct mali_single_framebuffer framebuffer = { .width = MALI_POSITIVE(width), .height = MALI_POSITIVE(height), .unknown2 = 0x1f, .format = 0x30000000, .clear_flags = 0x1000, .unknown_address_0 = ctx->scratchpad.bo->gpu, .tiler = panfrost_emit_midg_tiler(ctx, width, height, vertex_count), }; return framebuffer; } struct bifrost_framebuffer panfrost_emit_mfbd(struct panfrost_context *ctx, unsigned vertex_count) { unsigned width = ctx->pipe_framebuffer.width; unsigned height = ctx->pipe_framebuffer.height; struct bifrost_framebuffer framebuffer = { .unk0 = 0x1e5, /* 1e4 if no spill */ .width1 = MALI_POSITIVE(width), .height1 = MALI_POSITIVE(height), .width2 = MALI_POSITIVE(width), .height2 = MALI_POSITIVE(height), .unk1 = 0x1080, .rt_count_1 = MALI_POSITIVE(ctx->pipe_framebuffer.nr_cbufs), .rt_count_2 = 4, .unknown2 = 0x1f, .scratchpad = ctx->scratchpad.bo->gpu, .tiler = panfrost_emit_midg_tiler(ctx, width, height, vertex_count) }; return framebuffer; } /* Are we currently rendering to the screen (rather than an FBO)? */ bool panfrost_is_scanout(struct panfrost_context *ctx) { /* If there is no color buffer, it's an FBO */ if (ctx->pipe_framebuffer.nr_cbufs != 1) return false; /* If we're too early that no framebuffer was sent, it's scanout */ if (!ctx->pipe_framebuffer.cbufs[0]) return true; return ctx->pipe_framebuffer.cbufs[0]->texture->bind & PIPE_BIND_DISPLAY_TARGET || ctx->pipe_framebuffer.cbufs[0]->texture->bind & PIPE_BIND_SCANOUT || ctx->pipe_framebuffer.cbufs[0]->texture->bind & PIPE_BIND_SHARED; } static void panfrost_clear( struct pipe_context *pipe, unsigned buffers, const union pipe_color_union *color, double depth, unsigned stencil) { struct panfrost_context *ctx = pan_context(pipe); struct panfrost_job *job = panfrost_get_job_for_fbo(ctx); panfrost_job_clear(ctx, job, buffers, color, depth, stencil); } static mali_ptr panfrost_attach_vt_mfbd(struct panfrost_context *ctx) { struct bifrost_framebuffer mfbd = panfrost_emit_mfbd(ctx, ~0); return panfrost_upload_transient(ctx, &mfbd, sizeof(mfbd)) | MALI_MFBD; } static mali_ptr panfrost_attach_vt_sfbd(struct panfrost_context *ctx) { struct mali_single_framebuffer sfbd = panfrost_emit_sfbd(ctx, ~0); return panfrost_upload_transient(ctx, &sfbd, sizeof(sfbd)) | MALI_SFBD; } static void panfrost_attach_vt_framebuffer(struct panfrost_context *ctx) { /* Skip the attach if we can */ if (ctx->payloads[PIPE_SHADER_VERTEX].postfix.framebuffer) { assert(ctx->payloads[PIPE_SHADER_FRAGMENT].postfix.framebuffer); return; } struct panfrost_screen *screen = pan_screen(ctx->base.screen); mali_ptr framebuffer = screen->require_sfbd ? panfrost_attach_vt_sfbd(ctx) : panfrost_attach_vt_mfbd(ctx); for (unsigned i = 0; i < PIPE_SHADER_TYPES; ++i) ctx->payloads[i].postfix.framebuffer = framebuffer; } /* Reset per-frame context, called on context initialisation as well as after * flushing a frame */ static void panfrost_invalidate_frame(struct panfrost_context *ctx) { for (unsigned i = 0; i < PIPE_SHADER_TYPES; ++i) ctx->payloads[i].postfix.framebuffer = 0; if (ctx->rasterizer) ctx->dirty |= PAN_DIRTY_RASTERIZER; /* XXX */ ctx->dirty |= PAN_DIRTY_SAMPLERS | PAN_DIRTY_TEXTURES; /* TODO: When does this need to be handled? */ ctx->active_queries = true; } /* In practice, every field of these payloads should be configurable * arbitrarily, which means these functions are basically catch-all's for * as-of-yet unwavering unknowns */ static void panfrost_emit_vertex_payload(struct panfrost_context *ctx) { /* 0x2 bit clear on 32-bit T6XX */ struct midgard_payload_vertex_tiler payload = { .gl_enables = 0x4 | 0x2, }; /* Vertex and compute are closely coupled, so share a payload */ memcpy(&ctx->payloads[PIPE_SHADER_VERTEX], &payload, sizeof(payload)); memcpy(&ctx->payloads[PIPE_SHADER_COMPUTE], &payload, sizeof(payload)); } static void panfrost_emit_tiler_payload(struct panfrost_context *ctx) { struct midgard_payload_vertex_tiler payload = { .prefix = { .zero1 = 0xffff, /* Why is this only seen on test-quad-textured? */ }, }; memcpy(&ctx->payloads[PIPE_SHADER_FRAGMENT], &payload, sizeof(payload)); } static unsigned translate_tex_wrap(enum pipe_tex_wrap w) { switch (w) { case PIPE_TEX_WRAP_REPEAT: return MALI_WRAP_REPEAT; /* TODO: lower GL_CLAMP? */ case PIPE_TEX_WRAP_CLAMP: case PIPE_TEX_WRAP_CLAMP_TO_EDGE: return MALI_WRAP_CLAMP_TO_EDGE; case PIPE_TEX_WRAP_CLAMP_TO_BORDER: return MALI_WRAP_CLAMP_TO_BORDER; case PIPE_TEX_WRAP_MIRROR_REPEAT: return MALI_WRAP_MIRRORED_REPEAT; default: unreachable("Invalid wrap"); } } static unsigned panfrost_translate_compare_func(enum pipe_compare_func in) { switch (in) { case PIPE_FUNC_NEVER: return MALI_FUNC_NEVER; case PIPE_FUNC_LESS: return MALI_FUNC_LESS; case PIPE_FUNC_EQUAL: return MALI_FUNC_EQUAL; case PIPE_FUNC_LEQUAL: return MALI_FUNC_LEQUAL; case PIPE_FUNC_GREATER: return MALI_FUNC_GREATER; case PIPE_FUNC_NOTEQUAL: return MALI_FUNC_NOTEQUAL; case PIPE_FUNC_GEQUAL: return MALI_FUNC_GEQUAL; case PIPE_FUNC_ALWAYS: return MALI_FUNC_ALWAYS; default: unreachable("Invalid func"); } } static unsigned panfrost_translate_alt_compare_func(enum pipe_compare_func in) { switch (in) { case PIPE_FUNC_NEVER: return MALI_ALT_FUNC_NEVER; case PIPE_FUNC_LESS: return MALI_ALT_FUNC_LESS; case PIPE_FUNC_EQUAL: return MALI_ALT_FUNC_EQUAL; case PIPE_FUNC_LEQUAL: return MALI_ALT_FUNC_LEQUAL; case PIPE_FUNC_GREATER: return MALI_ALT_FUNC_GREATER; case PIPE_FUNC_NOTEQUAL: return MALI_ALT_FUNC_NOTEQUAL; case PIPE_FUNC_GEQUAL: return MALI_ALT_FUNC_GEQUAL; case PIPE_FUNC_ALWAYS: return MALI_ALT_FUNC_ALWAYS; default: unreachable("Invalid alt func"); } } static unsigned panfrost_translate_stencil_op(enum pipe_stencil_op in) { switch (in) { case PIPE_STENCIL_OP_KEEP: return MALI_STENCIL_KEEP; case PIPE_STENCIL_OP_ZERO: return MALI_STENCIL_ZERO; case PIPE_STENCIL_OP_REPLACE: return MALI_STENCIL_REPLACE; case PIPE_STENCIL_OP_INCR: return MALI_STENCIL_INCR; case PIPE_STENCIL_OP_DECR: return MALI_STENCIL_DECR; case PIPE_STENCIL_OP_INCR_WRAP: return MALI_STENCIL_INCR_WRAP; case PIPE_STENCIL_OP_DECR_WRAP: return MALI_STENCIL_DECR_WRAP; case PIPE_STENCIL_OP_INVERT: return MALI_STENCIL_INVERT; default: unreachable("Invalid stencil op"); } } static void panfrost_make_stencil_state(const struct pipe_stencil_state *in, struct mali_stencil_test *out) { out->ref = 0; /* Gallium gets it from elsewhere */ out->mask = in->valuemask; out->func = panfrost_translate_compare_func(in->func); out->sfail = panfrost_translate_stencil_op(in->fail_op); out->dpfail = panfrost_translate_stencil_op(in->zfail_op); out->dppass = panfrost_translate_stencil_op(in->zpass_op); } static void panfrost_default_shader_backend(struct panfrost_context *ctx) { struct mali_shader_meta shader = { .alpha_coverage = ~MALI_ALPHA_COVERAGE(0.000000), .unknown2_3 = MALI_DEPTH_FUNC(MALI_FUNC_ALWAYS) | 0x3010, .unknown2_4 = MALI_NO_MSAA | 0x4e0, }; /* unknown2_4 has 0x10 bit set on T6XX. We don't know why this is * required (independent of 32-bit/64-bit descriptors), or why it's not * used on later GPU revisions. Otherwise, all shader jobs fault on * these earlier chips (perhaps this is a chicken bit of some kind). * More investigation is needed. */ if (ctx->is_t6xx) { shader.unknown2_4 |= 0x10; } struct pipe_stencil_state default_stencil = { .enabled = 0, .func = PIPE_FUNC_ALWAYS, .fail_op = MALI_STENCIL_KEEP, .zfail_op = MALI_STENCIL_KEEP, .zpass_op = MALI_STENCIL_KEEP, .writemask = 0xFF, .valuemask = 0xFF }; panfrost_make_stencil_state(&default_stencil, &shader.stencil_front); shader.stencil_mask_front = default_stencil.writemask; panfrost_make_stencil_state(&default_stencil, &shader.stencil_back); shader.stencil_mask_back = default_stencil.writemask; if (default_stencil.enabled) shader.unknown2_4 |= MALI_STENCIL_TEST; memcpy(&ctx->fragment_shader_core, &shader, sizeof(shader)); } /* Generates a vertex/tiler job. This is, in some sense, the heart of the * graphics command stream. It should be called once per draw, accordding to * presentations. Set is_tiler for "tiler" jobs (fragment shader jobs, but in * Mali parlance, "fragment" refers to framebuffer writeout). Clear it for * vertex jobs. */ struct panfrost_transfer panfrost_vertex_tiler_job(struct panfrost_context *ctx, bool is_tiler) { struct mali_job_descriptor_header job = { .job_type = is_tiler ? JOB_TYPE_TILER : JOB_TYPE_VERTEX, .job_descriptor_size = 1, }; struct midgard_payload_vertex_tiler *payload = is_tiler ? &ctx->payloads[PIPE_SHADER_FRAGMENT] : &ctx->payloads[PIPE_SHADER_VERTEX]; struct panfrost_transfer transfer = panfrost_allocate_transient(ctx, sizeof(job) + sizeof(*payload)); memcpy(transfer.cpu, &job, sizeof(job)); memcpy(transfer.cpu + sizeof(job), payload, sizeof(*payload)); return transfer; } mali_ptr panfrost_vertex_buffer_address(struct panfrost_context *ctx, unsigned i) { struct pipe_vertex_buffer *buf = &ctx->vertex_buffers[i]; struct panfrost_resource *rsrc = (struct panfrost_resource *) (buf->buffer.resource); return rsrc->bo->gpu + buf->buffer_offset; } static bool panfrost_writes_point_size(struct panfrost_context *ctx) { assert(ctx->shader[PIPE_SHADER_VERTEX]); struct panfrost_shader_state *vs = &ctx->shader[PIPE_SHADER_VERTEX]->variants[ctx->shader[PIPE_SHADER_VERTEX]->active_variant]; return vs->writes_point_size && ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.draw_mode == MALI_POINTS; } /* Stage the attribute descriptors so we can adjust src_offset * to let BOs align nicely */ static void panfrost_stage_attributes(struct panfrost_context *ctx) { struct panfrost_vertex_state *so = ctx->vertex; size_t sz = sizeof(struct mali_attr_meta) * so->num_elements; struct panfrost_transfer transfer = panfrost_allocate_transient(ctx, sz); struct mali_attr_meta *target = (struct mali_attr_meta *) transfer.cpu; /* Copy as-is for the first pass */ memcpy(target, so->hw, sz); /* Fixup offsets for the second pass. Recall that the hardware * calculates attribute addresses as: * * addr = base + (stride * vtx) + src_offset; * * However, on Mali, base must be aligned to 64-bytes, so we * instead let: * * base' = base & ~63 = base - (base & 63) * * To compensate when using base' (see emit_vertex_data), we have * to adjust src_offset by the masked off piece: * * addr' = base' + (stride * vtx) + (src_offset + (base & 63)) * = base - (base & 63) + (stride * vtx) + src_offset + (base & 63) * = base + (stride * vtx) + src_offset * = addr; * * QED. */ unsigned start = ctx->payloads[PIPE_SHADER_VERTEX].offset_start; 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]; mali_ptr addr = panfrost_vertex_buffer_address(ctx, vbi); /* Adjust by the masked off bits of the offset */ target[i].src_offset += (addr & 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 && start) { target[i].src_offset -= buf->stride * start; } } ctx->payloads[PIPE_SHADER_VERTEX].postfix.attribute_meta = transfer.gpu; } static void panfrost_upload_sampler_descriptors(struct panfrost_context *ctx) { size_t desc_size = sizeof(struct mali_sampler_descriptor); for (int t = 0; t <= PIPE_SHADER_FRAGMENT; ++t) { mali_ptr upload = 0; if (ctx->sampler_count[t] && ctx->sampler_view_count[t]) { size_t transfer_size = desc_size * ctx->sampler_count[t]; struct panfrost_transfer transfer = panfrost_allocate_transient(ctx, transfer_size); struct mali_sampler_descriptor *desc = (struct mali_sampler_descriptor *) transfer.cpu; for (int i = 0; i < ctx->sampler_count[t]; ++i) desc[i] = ctx->samplers[t][i]->hw; upload = transfer.gpu; } ctx->payloads[t].postfix.sampler_descriptor = upload; } } static enum mali_texture_layout panfrost_layout_for_texture(struct panfrost_resource *rsrc) { /* TODO: other linear depth textures */ bool is_depth = rsrc->base.format == PIPE_FORMAT_Z32_UNORM; switch (rsrc->layout) { case PAN_AFBC: return MALI_TEXTURE_AFBC; case PAN_TILED: assert(!is_depth); return MALI_TEXTURE_TILED; case PAN_LINEAR: return is_depth ? MALI_TEXTURE_TILED : MALI_TEXTURE_LINEAR; default: unreachable("Invalid texture layout"); } } static mali_ptr panfrost_upload_tex( struct panfrost_context *ctx, 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); /* Do we interleave an explicit stride with every element? */ bool has_manual_stride = view->manual_stride; /* For easy access */ bool is_buffer = pview->target == PIPE_BUFFER; unsigned first_level = is_buffer ? 0 : pview->u.tex.first_level; unsigned last_level = is_buffer ? 0 : pview->u.tex.last_level; unsigned first_layer = is_buffer ? 0 : pview->u.tex.first_layer; unsigned last_layer = is_buffer ? 0 : pview->u.tex.last_layer; /* Lower-bit is set when sampling from colour AFBC */ bool is_afbc = rsrc->layout == PAN_AFBC; bool is_zs = rsrc->base.bind & PIPE_BIND_DEPTH_STENCIL; unsigned afbc_bit = (is_afbc && !is_zs) ? 1 : 0; /* Add the BO to the job so it's retained until the job is done. */ struct panfrost_job *job = panfrost_get_job_for_fbo(ctx); panfrost_job_add_bo(job, rsrc->bo); /* Add the usage flags in, since they can change across the CSO * lifetime due to layout switches */ view->hw.format.layout = panfrost_layout_for_texture(rsrc); view->hw.format.manual_stride = has_manual_stride; /* Inject the addresses in, interleaving mip levels, cube faces, and * strides in that order */ unsigned idx = 0; for (unsigned l = first_level; l <= last_level; ++l) { for (unsigned f = first_layer; f <= last_layer; ++f) { view->hw.payload[idx++] = panfrost_get_texture_address(rsrc, l, f) + afbc_bit; if (has_manual_stride) { view->hw.payload[idx++] = rsrc->slices[l].stride; } } } return panfrost_upload_transient(ctx, &view->hw, sizeof(struct mali_texture_descriptor)); } static void panfrost_upload_texture_descriptors(struct panfrost_context *ctx) { for (int t = 0; t <= PIPE_SHADER_FRAGMENT; ++t) { mali_ptr trampoline = 0; if (ctx->sampler_view_count[t]) { uint64_t trampolines[PIPE_MAX_SHADER_SAMPLER_VIEWS]; for (int i = 0; i < ctx->sampler_view_count[t]; ++i) trampolines[i] = panfrost_upload_tex(ctx, ctx->sampler_views[t][i]); trampoline = panfrost_upload_transient(ctx, trampolines, sizeof(uint64_t) * ctx->sampler_view_count[t]); } ctx->payloads[t].postfix.texture_trampoline = trampoline; } } 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_context *ctx, struct sysval_uniform *uniform) { 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_context *ctx, struct sysval_uniform *uniform) { 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_context *ctx, enum pipe_shader_type st, unsigned int sysvalid, struct sysval_uniform *uniform) { 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_context *ctx, enum pipe_shader_type st, unsigned ssbo_id, struct sysval_uniform *uniform) { assert(ctx->ssbo_mask[st] & (1 << ssbo_id)); struct pipe_shader_buffer sb = ctx->ssbo[st][ssbo_id]; /* Compute address */ struct panfrost_job *batch = panfrost_get_job_for_fbo(ctx); struct panfrost_bo *bo = pan_resource(sb.buffer)->bo; panfrost_job_add_bo(batch, bo); /* Upload address and size as sysval */ uniform->du[0] = bo->gpu + sb.buffer_offset; uniform->u[2] = sb.buffer_size; } static void panfrost_upload_num_work_groups_sysval(struct panfrost_context *ctx, struct sysval_uniform *uniform) { 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_context *ctx, 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(ctx, &uniforms[i]); break; case PAN_SYSVAL_VIEWPORT_OFFSET: panfrost_upload_viewport_offset_sysval(ctx, &uniforms[i]); break; case PAN_SYSVAL_TEXTURE_SIZE: panfrost_upload_txs_sysval(ctx, st, PAN_SYSVAL_ID(sysval), &uniforms[i]); break; case PAN_SYSVAL_SSBO: panfrost_upload_ssbo_sysval(ctx, st, PAN_SYSVAL_ID(sysval), &uniforms[i]); break; case PAN_SYSVAL_NUM_WORK_GROUPS: panfrost_upload_num_work_groups_sysval(ctx, &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->cpu; else if (cb->user_buffer) return cb->user_buffer; else unreachable("No constant buffer"); } static mali_ptr panfrost_map_constant_buffer_gpu( struct panfrost_context *ctx, 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->gpu; else if (cb->user_buffer) return panfrost_upload_transient(ctx, cb->user_buffer, cb->buffer_size); else unreachable("No constant buffer"); } /* Compute number of UBOs active (more specifically, compute the highest UBO * number addressable -- if there are gaps, include them in the count anyway). * We always include UBO #0 in the count, since we *need* uniforms enabled for * sysvals. */ static unsigned panfrost_ubo_count(struct panfrost_context *ctx, enum pipe_shader_type stage) { unsigned mask = ctx->constant_buffer[stage].enabled_mask | 1; return 32 - __builtin_clz(mask); } /* Fixes up a shader state with current state, returning a GPU address to the * patched shader */ static mali_ptr panfrost_patch_shader_state( struct panfrost_context *ctx, struct panfrost_shader_state *ss, enum pipe_shader_type stage, bool should_upload) { ss->tripipe->texture_count = ctx->sampler_view_count[stage]; ss->tripipe->sampler_count = ctx->sampler_count[stage]; ss->tripipe->midgard1.flags = 0x220; unsigned ubo_count = panfrost_ubo_count(ctx, stage); ss->tripipe->midgard1.uniform_buffer_count = ubo_count; /* We can't reuse over frames; that's not safe. The descriptor must be * transient uploaded */ if (should_upload) { return panfrost_upload_transient(ctx, ss->tripipe, sizeof(struct mali_shader_meta)); } /* If we don't need an upload, don't bother */ return 0; } static void panfrost_patch_shader_state_compute( struct panfrost_context *ctx, enum pipe_shader_type stage, bool should_upload) { struct panfrost_shader_variants *all = ctx->shader[stage]; if (!all) { ctx->payloads[stage].postfix._shader_upper = 0; return; } struct panfrost_shader_state *s = &all->variants[all->active_variant]; ctx->payloads[stage].postfix._shader_upper = panfrost_patch_shader_state(ctx, s, stage, should_upload) >> 4; } /* Go through dirty flags and actualise them in the cmdstream. */ void panfrost_emit_for_draw(struct panfrost_context *ctx, bool with_vertex_data) { struct panfrost_job *job = panfrost_get_job_for_fbo(ctx); struct panfrost_screen *screen = pan_screen(ctx->base.screen); panfrost_attach_vt_framebuffer(ctx); if (with_vertex_data) { panfrost_emit_vertex_data(job); /* Varyings emitted for -all- geometry */ unsigned total_count = ctx->padded_count * ctx->instance_count; panfrost_emit_varying_descriptor(ctx, total_count); } bool msaa = ctx->rasterizer->base.multisample; if (ctx->dirty & PAN_DIRTY_RASTERIZER) { ctx->payloads[PIPE_SHADER_FRAGMENT].gl_enables = ctx->rasterizer->tiler_gl_enables; /* TODO: Sample size */ SET_BIT(ctx->fragment_shader_core.unknown2_3, MALI_HAS_MSAA, msaa); SET_BIT(ctx->fragment_shader_core.unknown2_4, MALI_NO_MSAA, !msaa); } panfrost_job_set_requirements(ctx, job); if (ctx->occlusion_query) { ctx->payloads[PIPE_SHADER_FRAGMENT].gl_enables |= MALI_OCCLUSION_QUERY | MALI_OCCLUSION_PRECISE; ctx->payloads[PIPE_SHADER_FRAGMENT].postfix.occlusion_counter = ctx->occlusion_query->transfer.gpu; } panfrost_patch_shader_state_compute(ctx, PIPE_SHADER_VERTEX, true); panfrost_patch_shader_state_compute(ctx, PIPE_SHADER_COMPUTE, true); if (ctx->dirty & (PAN_DIRTY_RASTERIZER | PAN_DIRTY_VS)) { /* Check if we need to link the gl_PointSize varying */ if (!panfrost_writes_point_size(ctx)) { /* If the size is constant, write it out. Otherwise, * don't touch primitive_size (since we would clobber * the pointer there) */ ctx->payloads[PIPE_SHADER_FRAGMENT].primitive_size.constant = ctx->rasterizer->base.line_width; } } /* TODO: Maybe dirty track FS, maybe not. For now, it's transient. */ if (ctx->shader[PIPE_SHADER_FRAGMENT]) ctx->dirty |= PAN_DIRTY_FS; if (ctx->dirty & PAN_DIRTY_FS) { assert(ctx->shader[PIPE_SHADER_FRAGMENT]); struct panfrost_shader_state *variant = &ctx->shader[PIPE_SHADER_FRAGMENT]->variants[ctx->shader[PIPE_SHADER_FRAGMENT]->active_variant]; panfrost_patch_shader_state(ctx, variant, PIPE_SHADER_FRAGMENT, false); panfrost_job_add_bo(job, variant->bo); #define COPY(name) ctx->fragment_shader_core.name = variant->tripipe->name COPY(shader); COPY(attribute_count); COPY(varying_count); COPY(texture_count); COPY(sampler_count); COPY(midgard1.uniform_count); COPY(midgard1.uniform_buffer_count); COPY(midgard1.work_count); COPY(midgard1.flags); COPY(midgard1.unknown2); #undef COPY /* Get blending setup */ unsigned rt_count = MAX2(ctx->pipe_framebuffer.nr_cbufs, 1); struct panfrost_blend_final blend[PIPE_MAX_COLOR_BUFS]; for (unsigned c = 0; c < rt_count; ++c) blend[c] = panfrost_get_blend_for_context(ctx, c); /* If there is a blend shader, work registers are shared. XXX: opt */ for (unsigned c = 0; c < rt_count; ++c) { if (blend[c].is_shader) ctx->fragment_shader_core.midgard1.work_count = 16; } /* Set late due to depending on render state */ unsigned flags = ctx->fragment_shader_core.midgard1.flags; /* Depending on whether it's legal to in the given shader, we * try to enable early-z testing (or forward-pixel kill?) */ if (!variant->can_discard) flags |= MALI_EARLY_Z; /* Any time texturing is used, derivatives are implicitly * calculated, so we need to enable helper invocations */ if (variant->helper_invocations) flags |= MALI_HELPER_INVOCATIONS; ctx->fragment_shader_core.midgard1.flags = flags; /* Assign the stencil refs late */ unsigned front_ref = ctx->stencil_ref.ref_value[0]; unsigned back_ref = ctx->stencil_ref.ref_value[1]; bool back_enab = ctx->depth_stencil->stencil[1].enabled; ctx->fragment_shader_core.stencil_front.ref = front_ref; ctx->fragment_shader_core.stencil_back.ref = back_enab ? back_ref : front_ref; /* CAN_DISCARD should be set if the fragment shader possibly * contains a 'discard' instruction. It is likely this is * related to optimizations related to forward-pixel kill, as * per "Mali Performance 3: Is EGL_BUFFER_PRESERVED a good * thing?" by Peter Harris */ if (variant->can_discard) { ctx->fragment_shader_core.unknown2_3 |= MALI_CAN_DISCARD; ctx->fragment_shader_core.midgard1.flags |= 0x400; } /* Even on MFBD, the shader descriptor gets blend shaders. It's * *also* copied to the blend_meta appended (by convention), * but this is the field actually read by the hardware. (Or * maybe both are read...?) */ if (blend[0].is_shader) { ctx->fragment_shader_core.blend.shader = blend[0].shader.bo->gpu | blend[0].shader.first_tag; } else { ctx->fragment_shader_core.blend.shader = 0; } if (screen->require_sfbd) { /* When only a single render target platform is used, the blend * information is inside the shader meta itself. We * additionally need to signal CAN_DISCARD for nontrivial blend * modes (so we're able to read back the destination buffer) */ if (!blend[0].is_shader) { ctx->fragment_shader_core.blend.equation = *blend[0].equation.equation; ctx->fragment_shader_core.blend.constant = blend[0].equation.constant; } if (!blend[0].no_blending) { ctx->fragment_shader_core.unknown2_3 |= MALI_CAN_DISCARD; } } size_t size = sizeof(struct mali_shader_meta) + (sizeof(struct midgard_blend_rt) * rt_count); struct panfrost_transfer transfer = panfrost_allocate_transient(ctx, size); memcpy(transfer.cpu, &ctx->fragment_shader_core, sizeof(struct mali_shader_meta)); ctx->payloads[PIPE_SHADER_FRAGMENT].postfix._shader_upper = (transfer.gpu) >> 4; if (!screen->require_sfbd) { /* Additional blend descriptor tacked on for jobs using MFBD */ struct midgard_blend_rt rts[4]; for (unsigned i = 0; i < rt_count; ++i) { unsigned blend_count = 0x200; if (blend[i].is_shader) { /* For a blend shader, the bottom nibble corresponds to * the number of work registers used, which signals the * -existence- of a blend shader */ assert(blend[i].shader.work_count >= 2); blend_count |= MIN2(blend[i].shader.work_count, 3); } else { /* Otherwise, the bottom bit simply specifies if * blending (anything other than REPLACE) is enabled */ if (!blend[i].no_blending) blend_count |= 0x1; } bool is_srgb = (ctx->pipe_framebuffer.nr_cbufs > i) && (ctx->pipe_framebuffer.cbufs[i]) && util_format_is_srgb(ctx->pipe_framebuffer.cbufs[i]->format); rts[i].flags = blend_count; if (is_srgb) rts[i].flags |= MALI_BLEND_SRGB; if (!ctx->blend->base.dither) rts[i].flags |= MALI_BLEND_NO_DITHER; /* TODO: sRGB in blend shaders is currently * unimplemented. Contact me (Alyssa) if you're * interested in working on this. We have * native Midgard ops for helping here, but * they're not well-understood yet. */ assert(!(is_srgb && blend[i].is_shader)); if (blend[i].is_shader) { rts[i].blend.shader = blend[i].shader.bo->gpu | blend[i].shader.first_tag; } else { rts[i].blend.equation = *blend[i].equation.equation; rts[i].blend.constant = blend[i].equation.constant; } } memcpy(transfer.cpu + sizeof(struct mali_shader_meta), rts, sizeof(rts[0]) * rt_count); } } /* We stage to transient, so always dirty.. */ if (ctx->vertex) panfrost_stage_attributes(ctx); if (ctx->dirty & PAN_DIRTY_SAMPLERS) panfrost_upload_sampler_descriptors(ctx); if (ctx->dirty & PAN_DIRTY_TEXTURES) panfrost_upload_texture_descriptors(ctx); const struct pipe_viewport_state *vp = &ctx->pipe_viewport; for (int i = 0; i < PIPE_SHADER_TYPES; ++i) { struct panfrost_shader_variants *all = ctx->shader[i]; if (!all) continue; struct panfrost_constant_buffer *buf = &ctx->constant_buffer[i]; 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_transfer transfer = panfrost_allocate_transient(ctx, size); /* Upload sysvals requested by the shader */ panfrost_upload_sysvals(ctx, transfer.cpu, ss, i); /* Upload uniforms */ if (has_uniforms) { const void *cpu = panfrost_map_constant_buffer_cpu(buf, 0); memcpy(transfer.cpu + sys_size, cpu, uniform_size); } int uniform_count = ctx->shader[i]->variants[ctx->shader[i]->active_variant].uniform_count; struct mali_vertex_tiler_postfix *postfix = &ctx->payloads[i].postfix; /* Next up, attach UBOs. UBO #0 is the uniforms we just * uploaded */ unsigned ubo_count = panfrost_ubo_count(ctx, i); assert(ubo_count >= 1); size_t sz = sizeof(struct mali_uniform_buffer_meta) * ubo_count; struct mali_uniform_buffer_meta ubos[PAN_MAX_CONST_BUFFERS]; /* Upload uniforms as a UBO */ ubos[0].size = MALI_POSITIVE((2 + uniform_count)); ubos[0].ptr = transfer.gpu >> 2; /* 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) { /* Stub out disabled UBOs to catch accesses */ ubos[ubo].size = 0; ubos[ubo].ptr = 0xDEAD0000; continue; } mali_ptr gpu = panfrost_map_constant_buffer_gpu(ctx, buf, ubo); unsigned bytes_per_field = 16; unsigned aligned = ALIGN_POT(usz, bytes_per_field); unsigned fields = aligned / bytes_per_field; ubos[ubo].size = MALI_POSITIVE(fields); ubos[ubo].ptr = gpu >> 2; } mali_ptr ubufs = panfrost_upload_transient(ctx, ubos, sz); postfix->uniforms = transfer.gpu; postfix->uniform_buffers = ubufs; buf->dirty_mask = 0; } /* TODO: Upload the viewport somewhere more appropriate */ /* Clip bounds are encoded as floats. The viewport itself is encoded as * (somewhat) asymmetric ints. */ const struct pipe_scissor_state *ss = &ctx->scissor; struct mali_viewport view = { /* By default, do no viewport clipping, i.e. clip to (-inf, * inf) in each direction. Clipping to the viewport in theory * should work, but in practice causes issues when we're not * explicitly trying to scissor */ .clip_minx = -INFINITY, .clip_miny = -INFINITY, .clip_maxx = INFINITY, .clip_maxy = INFINITY, }; /* Always scissor to the viewport by default. */ float vp_minx = (int) (vp->translate[0] - fabsf(vp->scale[0])); float vp_maxx = (int) (vp->translate[0] + fabsf(vp->scale[0])); float vp_miny = (int) (vp->translate[1] - fabsf(vp->scale[1])); float vp_maxy = (int) (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])); /* Apply the scissor test */ unsigned minx, miny, maxx, maxy; if (ss && ctx->rasterizer && ctx->rasterizer->base.scissor) { minx = MAX2(ss->minx, vp_minx); miny = MAX2(ss->miny, vp_miny); maxx = MIN2(ss->maxx, vp_maxx); maxy = MIN2(ss->maxy, vp_maxy); } else { minx = vp_minx; miny = vp_miny; maxx = vp_maxx; maxy = vp_maxy; } /* Hardware needs the min/max to be strictly ordered, so flip if we * need to. The viewport transformation in the vertex shader will * handle the negatives if we don't */ if (miny > maxy) { unsigned temp = miny; miny = maxy; maxy = temp; } if (minx > maxx) { unsigned temp = minx; minx = maxx; maxx = temp; } if (minz > maxz) { float temp = minz; minz = maxz; maxz = temp; } /* Clamp to the framebuffer size as a last check */ minx = MIN2(ctx->pipe_framebuffer.width, minx); maxx = MIN2(ctx->pipe_framebuffer.width, maxx); miny = MIN2(ctx->pipe_framebuffer.height, miny); maxy = MIN2(ctx->pipe_framebuffer.height, maxy); /* Update the job, unless we're doing wallpapering (whose lack of * scissor we can ignore, since if we "miss" a tile of wallpaper, it'll * just... be faster :) */ if (!ctx->wallpaper_batch) panfrost_job_union_scissor(job, minx, miny, maxx, maxy); /* Upload */ view.viewport0[0] = minx; view.viewport1[0] = MALI_POSITIVE(maxx); view.viewport0[1] = miny; view.viewport1[1] = MALI_POSITIVE(maxy); view.clip_minz = minz; view.clip_maxz = maxz; ctx->payloads[PIPE_SHADER_FRAGMENT].postfix.viewport = panfrost_upload_transient(ctx, &view, sizeof(struct mali_viewport)); ctx->dirty = 0; } /* Corresponds to exactly one draw, but does not submit anything */ static void panfrost_queue_draw(struct panfrost_context *ctx) { /* Handle dirty flags now */ panfrost_emit_for_draw(ctx, true); /* If rasterizer discard is enable, only submit the vertex */ bool rasterizer_discard = ctx->rasterizer && ctx->rasterizer->base.rasterizer_discard; struct panfrost_transfer vertex = panfrost_vertex_tiler_job(ctx, false); struct panfrost_transfer tiler; if (!rasterizer_discard) tiler = panfrost_vertex_tiler_job(ctx, true); struct panfrost_job *batch = panfrost_get_job_for_fbo(ctx); if (rasterizer_discard) panfrost_scoreboard_queue_vertex_job(batch, vertex, FALSE); else if (ctx->wallpaper_batch) panfrost_scoreboard_queue_fused_job_prepend(batch, vertex, tiler); else panfrost_scoreboard_queue_fused_job(batch, vertex, tiler); } /* The entire frame is in memory -- send it off to the kernel! */ static void panfrost_submit_frame(struct panfrost_context *ctx, bool flush_immediate, struct pipe_fence_handle **fence, struct panfrost_job *job) { panfrost_job_submit(ctx, job); /* If visual, we can stall a frame */ if (!flush_immediate) panfrost_drm_force_flush_fragment(ctx, fence); ctx->last_fragment_flushed = false; ctx->last_job = job; /* If readback, flush now (hurts the pipelined performance) */ if (flush_immediate) panfrost_drm_force_flush_fragment(ctx, fence); } static void panfrost_draw_wallpaper(struct pipe_context *pipe) { struct panfrost_context *ctx = pan_context(pipe); /* Nothing to reload? TODO: MRT wallpapers */ if (ctx->pipe_framebuffer.cbufs[0] == NULL) return; /* Check if the buffer has any content on it worth preserving */ struct pipe_surface *surf = ctx->pipe_framebuffer.cbufs[0]; struct panfrost_resource *rsrc = pan_resource(surf->texture); unsigned level = surf->u.tex.level; if (!rsrc->slices[level].initialized) return; /* Save the batch */ struct panfrost_job *batch = panfrost_get_job_for_fbo(ctx); ctx->wallpaper_batch = batch; /* Clamp the rendering area to the damage extent. The * KHR_partial_update() spec states that trying to render outside of * the damage region is "undefined behavior", so we should be safe. */ unsigned damage_width = (rsrc->damage.extent.maxx - rsrc->damage.extent.minx); unsigned damage_height = (rsrc->damage.extent.maxy - rsrc->damage.extent.miny); if (damage_width && damage_height) { panfrost_job_intersection_scissor(batch, rsrc->damage.extent.minx, rsrc->damage.extent.miny, rsrc->damage.extent.maxx, rsrc->damage.extent.maxy); } /* FIXME: Looks like aligning on a tile is not enough, but * aligning on twice the tile size seems to works. We don't * know exactly what happens here but this deserves extra * investigation to figure it out. */ batch->minx = batch->minx & ~((MALI_TILE_LENGTH * 2) - 1); batch->miny = batch->miny & ~((MALI_TILE_LENGTH * 2) - 1); batch->maxx = MIN2(ALIGN_POT(batch->maxx, MALI_TILE_LENGTH * 2), rsrc->base.width0); batch->maxy = MIN2(ALIGN_POT(batch->maxy, MALI_TILE_LENGTH * 2), rsrc->base.height0); struct pipe_scissor_state damage; struct pipe_box rects[4]; /* Clamp the damage box to the rendering area. */ damage.minx = MAX2(batch->minx, rsrc->damage.biggest_rect.x); damage.miny = MAX2(batch->miny, rsrc->damage.biggest_rect.y); damage.maxx = MIN2(batch->maxx, rsrc->damage.biggest_rect.x + rsrc->damage.biggest_rect.width); damage.maxy = MIN2(batch->maxy, rsrc->damage.biggest_rect.y + rsrc->damage.biggest_rect.height); /* One damage rectangle means we can end up with at most 4 reload * regions: * 1: left region, only exists if damage.x > 0 * 2: right region, only exists if damage.x + damage.width < fb->width * 3: top region, only exists if damage.y > 0. The intersection with * the left and right regions are dropped * 4: bottom region, only exists if damage.y + damage.height < fb->height. * The intersection with the left and right regions are dropped * * ____________________________ * | | 3 | | * | |___________| | * | | damage | | * | 1 | rect | 2 | * | |___________| | * | | 4 | | * |_______|___________|______| */ u_box_2d(batch->minx, batch->miny, damage.minx - batch->minx, batch->maxy - batch->miny, &rects[0]); u_box_2d(damage.maxx, batch->miny, batch->maxx - damage.maxx, batch->maxy - batch->miny, &rects[1]); u_box_2d(damage.minx, batch->miny, damage.maxx - damage.minx, damage.miny - batch->miny, &rects[2]); u_box_2d(damage.minx, damage.maxy, damage.maxx - damage.minx, batch->maxy - damage.maxy, &rects[3]); for (unsigned i = 0; i < 4; i++) { /* Width and height are always >= 0 even if width is declared as a * signed integer: u_box_2d() helper takes unsigned args and * panfrost_set_damage_region() is taking care of clamping * negative values. */ if (!rects[i].width || !rects[i].height) continue; /* Blit the wallpaper in */ panfrost_blit_wallpaper(ctx, &rects[i]); } ctx->wallpaper_batch = NULL; } void panfrost_flush( struct pipe_context *pipe, struct pipe_fence_handle **fence, unsigned flags) { struct panfrost_context *ctx = pan_context(pipe); struct panfrost_job *job = panfrost_get_job_for_fbo(ctx); /* Nothing to do! */ if (!job->last_job.gpu && !job->clear) return; if (!job->clear && job->last_tiler.gpu) panfrost_draw_wallpaper(&ctx->base); /* Whether to stall the pipeline for immediately correct results. Since * pipelined rendering is quite broken right now (to be fixed by the * panfrost_job refactor, just take the perf hit for correctness) */ bool flush_immediate = /*flags & PIPE_FLUSH_END_OF_FRAME*/true; /* Submit the frame itself */ panfrost_submit_frame(ctx, flush_immediate, fence, job); /* Prepare for the next frame */ panfrost_invalidate_frame(ctx); } #define DEFINE_CASE(c) case PIPE_PRIM_##c: return MALI_##c; static int g2m_draw_mode(enum pipe_prim_type mode) { switch (mode) { DEFINE_CASE(POINTS); DEFINE_CASE(LINES); DEFINE_CASE(LINE_LOOP); DEFINE_CASE(LINE_STRIP); DEFINE_CASE(TRIANGLES); DEFINE_CASE(TRIANGLE_STRIP); DEFINE_CASE(TRIANGLE_FAN); DEFINE_CASE(QUADS); DEFINE_CASE(QUAD_STRIP); DEFINE_CASE(POLYGON); default: unreachable("Invalid draw mode"); } } #undef DEFINE_CASE static unsigned panfrost_translate_index_size(unsigned size) { switch (size) { case 1: return MALI_DRAW_INDEXED_UINT8; case 2: return MALI_DRAW_INDEXED_UINT16; case 4: return MALI_DRAW_INDEXED_UINT32; default: unreachable("Invalid index size"); } } /* Gets a GPU address for the associated index buffer. Only gauranteed to be * good for the duration of the draw (transient), could last longer */ static mali_ptr panfrost_get_index_buffer_mapped(struct panfrost_context *ctx, const struct pipe_draw_info *info) { struct panfrost_resource *rsrc = (struct panfrost_resource *) (info->index.resource); off_t offset = info->start * info->index_size; struct panfrost_job *batch = panfrost_get_job_for_fbo(ctx); if (!info->has_user_indices) { /* Only resources can be directly mapped */ panfrost_job_add_bo(batch, rsrc->bo); return rsrc->bo->gpu + offset; } else { /* Otherwise, we need to upload to transient memory */ const uint8_t *ibuf8 = (const uint8_t *) info->index.user; return panfrost_upload_transient(ctx, ibuf8 + offset, info->count * info->index_size); } } static bool panfrost_scissor_culls_everything(struct panfrost_context *ctx) { const struct pipe_scissor_state *ss = &ctx->scissor; /* Check if we're scissoring at all */ if (!(ctx->rasterizer && ctx->rasterizer->base.scissor)) return false; return (ss->minx == ss->maxx) || (ss->miny == ss->maxy); } /* Count generated primitives (when there is no geom/tess shaders) for * transform feedback */ static void panfrost_statistics_record( struct panfrost_context *ctx, const struct pipe_draw_info *info) { if (!ctx->active_queries) return; uint32_t prims = u_prims_for_vertices(info->mode, info->count); ctx->prims_generated += prims; if (!ctx->streamout.num_targets) return; ctx->tf_prims_generated += prims; } static void panfrost_draw_vbo( struct pipe_context *pipe, const struct pipe_draw_info *info) { struct panfrost_context *ctx = pan_context(pipe); /* First of all, check the scissor to see if anything is drawn at all. * If it's not, we drop the draw (mostly a conformance issue; * well-behaved apps shouldn't hit this) */ if (panfrost_scissor_culls_everything(ctx)) return; ctx->payloads[PIPE_SHADER_VERTEX].offset_start = info->start; ctx->payloads[PIPE_SHADER_FRAGMENT].offset_start = info->start; int mode = info->mode; /* Fallback unsupported restart index */ unsigned primitive_index = (1 << (info->index_size * 8)) - 1; if (info->primitive_restart && info->index_size && info->restart_index != primitive_index) { util_draw_vbo_without_prim_restart(pipe, info); return; } /* Fallback for unsupported modes */ assert(ctx->rasterizer != NULL); if (!(ctx->draw_modes & (1 << mode))) { if (mode == PIPE_PRIM_QUADS && info->count == 4 && !ctx->rasterizer->base.flatshade) { mode = PIPE_PRIM_TRIANGLE_FAN; } else { if (info->count < 4) { /* Degenerate case? */ return; } util_primconvert_save_rasterizer_state(ctx->primconvert, &ctx->rasterizer->base); util_primconvert_draw_vbo(ctx->primconvert, info); return; } } /* Now that we have a guaranteed terminating path, find the job. * Assignment commented out to prevent unused warning */ /* struct panfrost_job *job = */ panfrost_get_job_for_fbo(ctx); ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.draw_mode = g2m_draw_mode(mode); /* Take into account a negative bias */ ctx->vertex_count = info->count + abs(info->index_bias); ctx->instance_count = info->instance_count; ctx->active_prim = info->mode; /* For non-indexed draws, they're the same */ unsigned vertex_count = ctx->vertex_count; unsigned draw_flags = 0; /* The draw flags interpret how primitive size is interpreted */ if (panfrost_writes_point_size(ctx)) draw_flags |= MALI_DRAW_VARYING_SIZE; if (info->primitive_restart) draw_flags |= MALI_DRAW_PRIMITIVE_RESTART_FIXED_INDEX; /* For higher amounts of vertices (greater than what fits in a 16-bit * short), the other value is needed, otherwise there will be bizarre * rendering artefacts. It's not clear what these values mean yet. This * change is also needed for instancing and sometimes points (perhaps * related to dynamically setting gl_PointSize) */ bool is_points = mode == PIPE_PRIM_POINTS; bool many_verts = ctx->vertex_count > 0xFFFF; bool instanced = ctx->instance_count > 1; draw_flags |= (is_points || many_verts || instanced) ? 0x3000 : 0x18000; /* This doesn't make much sense */ if (mode == PIPE_PRIM_LINE_STRIP) { draw_flags |= 0x800; } panfrost_statistics_record(ctx, info); if (info->index_size) { /* Calculate the min/max index used so we can figure out how * many times to invoke the vertex shader */ /* Fetch / calculate index bounds */ unsigned min_index = 0, max_index = 0; if (info->max_index == ~0u) { u_vbuf_get_minmax_index(pipe, info, &min_index, &max_index); } else { min_index = info->min_index; max_index = info->max_index; } /* Use the corresponding values */ vertex_count = max_index - min_index + 1; ctx->payloads[PIPE_SHADER_VERTEX].offset_start = min_index + info->index_bias; ctx->payloads[PIPE_SHADER_FRAGMENT].offset_start = min_index + info->index_bias; ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.offset_bias_correction = -min_index; ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.index_count = MALI_POSITIVE(info->count); //assert(!info->restart_index); /* TODO: Research */ draw_flags |= panfrost_translate_index_size(info->index_size); ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.indices = panfrost_get_index_buffer_mapped(ctx, info); } else { /* Index count == vertex count, if no indexing is applied, as * if it is internally indexed in the expected order */ ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.offset_bias_correction = 0; ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.index_count = MALI_POSITIVE(ctx->vertex_count); /* Reverse index state */ ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.indices = (u64) NULL; } /* Dispatch "compute jobs" for the vertex/tiler pair as (1, * vertex_count, 1) */ panfrost_pack_work_groups_fused( &ctx->payloads[PIPE_SHADER_VERTEX].prefix, &ctx->payloads[PIPE_SHADER_FRAGMENT].prefix, 1, vertex_count, info->instance_count, 1, 1, 1); ctx->payloads[PIPE_SHADER_FRAGMENT].prefix.unknown_draw = draw_flags; /* Encode the padded vertex count */ if (info->instance_count > 1) { /* Triangles have non-even vertex counts so they change how * padding works internally */ bool is_triangle = mode == PIPE_PRIM_TRIANGLES || mode == PIPE_PRIM_TRIANGLE_STRIP || mode == PIPE_PRIM_TRIANGLE_FAN; struct pan_shift_odd so = panfrost_padded_vertex_count(vertex_count, !is_triangle); ctx->payloads[PIPE_SHADER_VERTEX].instance_shift = so.shift; ctx->payloads[PIPE_SHADER_FRAGMENT].instance_shift = so.shift; ctx->payloads[PIPE_SHADER_VERTEX].instance_odd = so.odd; ctx->payloads[PIPE_SHADER_FRAGMENT].instance_odd = so.odd; ctx->padded_count = pan_expand_shift_odd(so); } else { ctx->padded_count = ctx->vertex_count; /* Reset instancing state */ ctx->payloads[PIPE_SHADER_VERTEX].instance_shift = 0; ctx->payloads[PIPE_SHADER_VERTEX].instance_odd = 0; ctx->payloads[PIPE_SHADER_FRAGMENT].instance_shift = 0; ctx->payloads[PIPE_SHADER_FRAGMENT].instance_odd = 0; } /* Fire off the draw itself */ panfrost_queue_draw(ctx); /* Increment transform feedback offsets */ for (unsigned i = 0; i < ctx->streamout.num_targets; ++i) { unsigned output_count = u_stream_outputs_for_vertices( ctx->active_prim, ctx->vertex_count); ctx->streamout.offsets[i] += output_count; } } /* CSO state */ static void panfrost_generic_cso_delete(struct pipe_context *pctx, void *hwcso) { free(hwcso); } static void * panfrost_create_rasterizer_state( struct pipe_context *pctx, const struct pipe_rasterizer_state *cso) { struct panfrost_rasterizer *so = CALLOC_STRUCT(panfrost_rasterizer); so->base = *cso; /* Bitmask, unknown meaning of the start value. 0x105 on 32-bit T6XX */ so->tiler_gl_enables = 0x7; if (cso->front_ccw) so->tiler_gl_enables |= MALI_FRONT_CCW_TOP; if (cso->cull_face & PIPE_FACE_FRONT) so->tiler_gl_enables |= MALI_CULL_FACE_FRONT; if (cso->cull_face & PIPE_FACE_BACK) so->tiler_gl_enables |= MALI_CULL_FACE_BACK; return so; } static void panfrost_bind_rasterizer_state( struct pipe_context *pctx, void *hwcso) { struct panfrost_context *ctx = pan_context(pctx); /* TODO: Why can't rasterizer be NULL ever? Other drivers are fine.. */ if (!hwcso) return; ctx->rasterizer = hwcso; ctx->dirty |= PAN_DIRTY_RASTERIZER; ctx->fragment_shader_core.depth_units = ctx->rasterizer->base.offset_units; ctx->fragment_shader_core.depth_factor = ctx->rasterizer->base.offset_scale; /* Gauranteed with the core GL call, so don't expose ARB_polygon_offset */ assert(ctx->rasterizer->base.offset_clamp == 0.0); /* XXX: Which bit is which? Does this maybe allow offseting not-tri? */ SET_BIT(ctx->fragment_shader_core.unknown2_4, MALI_DEPTH_RANGE_A, ctx->rasterizer->base.offset_tri); SET_BIT(ctx->fragment_shader_core.unknown2_4, MALI_DEPTH_RANGE_B, ctx->rasterizer->base.offset_tri); /* Point sprites are emulated */ struct panfrost_shader_state *variant = ctx->shader[PIPE_SHADER_FRAGMENT] ? &ctx->shader[PIPE_SHADER_FRAGMENT]->variants[ctx->shader[PIPE_SHADER_FRAGMENT]->active_variant] : NULL; if (ctx->rasterizer->base.sprite_coord_enable || (variant && variant->point_sprite_mask)) ctx->base.bind_fs_state(&ctx->base, ctx->shader[PIPE_SHADER_FRAGMENT]); } static void * panfrost_create_vertex_elements_state( struct pipe_context *pctx, unsigned num_elements, const struct pipe_vertex_element *elements) { struct panfrost_vertex_state *so = CALLOC_STRUCT(panfrost_vertex_state); so->num_elements = num_elements; memcpy(so->pipe, elements, sizeof(*elements) * num_elements); for (int i = 0; i < num_elements; ++i) { so->hw[i].index = i; enum pipe_format fmt = elements[i].src_format; const struct util_format_description *desc = util_format_description(fmt); so->hw[i].unknown1 = 0x2; so->hw[i].swizzle = panfrost_get_default_swizzle(desc->nr_channels); so->hw[i].format = panfrost_find_format(desc); /* The field itself should probably be shifted over */ so->hw[i].src_offset = elements[i].src_offset; } return so; } static void panfrost_bind_vertex_elements_state( struct pipe_context *pctx, void *hwcso) { struct panfrost_context *ctx = pan_context(pctx); ctx->vertex = hwcso; ctx->dirty |= PAN_DIRTY_VERTEX; } static void * panfrost_create_shader_state( struct pipe_context *pctx, const struct pipe_shader_state *cso) { struct panfrost_shader_variants *so = CALLOC_STRUCT(panfrost_shader_variants); so->base = *cso; /* Token deep copy to prevent memory corruption */ if (cso->type == PIPE_SHADER_IR_TGSI) so->base.tokens = tgsi_dup_tokens(so->base.tokens); return so; } static void panfrost_delete_shader_state( struct pipe_context *pctx, void *so) { struct panfrost_shader_variants *cso = (struct panfrost_shader_variants *) so; if (cso->base.type == PIPE_SHADER_IR_TGSI) { DBG("Deleting TGSI shader leaks duplicated tokens\n"); } for (unsigned i = 0; i < cso->variant_count; ++i) { struct panfrost_shader_state *shader_state = &cso->variants[i]; panfrost_bo_unreference(pctx->screen, shader_state->bo); shader_state->bo = NULL; } free(so); } static void * panfrost_create_sampler_state( struct pipe_context *pctx, const struct pipe_sampler_state *cso) { struct panfrost_sampler_state *so = CALLOC_STRUCT(panfrost_sampler_state); so->base = *cso; /* sampler_state corresponds to mali_sampler_descriptor, which we can generate entirely here */ bool min_nearest = cso->min_img_filter == PIPE_TEX_FILTER_NEAREST; bool mag_nearest = cso->mag_img_filter == PIPE_TEX_FILTER_NEAREST; bool mip_linear = cso->min_mip_filter == PIPE_TEX_MIPFILTER_LINEAR; unsigned min_filter = min_nearest ? MALI_SAMP_MIN_NEAREST : 0; unsigned mag_filter = mag_nearest ? MALI_SAMP_MAG_NEAREST : 0; unsigned mip_filter = mip_linear ? (MALI_SAMP_MIP_LINEAR_1 | MALI_SAMP_MIP_LINEAR_2) : 0; unsigned normalized = cso->normalized_coords ? MALI_SAMP_NORM_COORDS : 0; struct mali_sampler_descriptor sampler_descriptor = { .filter_mode = min_filter | mag_filter | mip_filter | normalized, .wrap_s = translate_tex_wrap(cso->wrap_s), .wrap_t = translate_tex_wrap(cso->wrap_t), .wrap_r = translate_tex_wrap(cso->wrap_r), .compare_func = panfrost_translate_alt_compare_func(cso->compare_func), .border_color = { cso->border_color.f[0], cso->border_color.f[1], cso->border_color.f[2], cso->border_color.f[3] }, .min_lod = FIXED_16(cso->min_lod), .max_lod = FIXED_16(cso->max_lod), .seamless_cube_map = cso->seamless_cube_map, }; /* 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) */ if (cso->min_mip_filter == PIPE_TEX_MIPFILTER_NONE) sampler_descriptor.max_lod = sampler_descriptor.min_lod; /* Enforce that there is something in the middle by adding epsilon*/ if (sampler_descriptor.min_lod == sampler_descriptor.max_lod) sampler_descriptor.max_lod++; /* Sanity check */ assert(sampler_descriptor.max_lod > sampler_descriptor.min_lod); so->hw = sampler_descriptor; return so; } static void panfrost_bind_sampler_states( struct pipe_context *pctx, enum pipe_shader_type shader, unsigned start_slot, unsigned num_sampler, void **sampler) { assert(start_slot == 0); struct panfrost_context *ctx = pan_context(pctx); /* XXX: Should upload, not just copy? */ ctx->sampler_count[shader] = num_sampler; memcpy(ctx->samplers[shader], sampler, num_sampler * sizeof (void *)); ctx->dirty |= PAN_DIRTY_SAMPLERS; } static bool panfrost_variant_matches( struct panfrost_context *ctx, struct panfrost_shader_state *variant, enum pipe_shader_type type) { struct pipe_rasterizer_state *rasterizer = &ctx->rasterizer->base; struct pipe_alpha_state *alpha = &ctx->depth_stencil->alpha; bool is_fragment = (type == PIPE_SHADER_FRAGMENT); if (is_fragment && (alpha->enabled || variant->alpha_state.enabled)) { /* Make sure enable state is at least the same */ if (alpha->enabled != variant->alpha_state.enabled) { return false; } /* Check that the contents of the test are the same */ bool same_func = alpha->func == variant->alpha_state.func; bool same_ref = alpha->ref_value == variant->alpha_state.ref_value; if (!(same_func && same_ref)) { return false; } } if (is_fragment && rasterizer && (rasterizer->sprite_coord_enable | variant->point_sprite_mask)) { /* Ensure the same varyings are turned to point sprites */ if (rasterizer->sprite_coord_enable != variant->point_sprite_mask) return false; /* Ensure the orientation is correct */ bool upper_left = rasterizer->sprite_coord_mode == PIPE_SPRITE_COORD_UPPER_LEFT; if (variant->point_sprite_upper_left != upper_left) return false; } /* Otherwise, we're good to go */ return true; } /** * Fix an uncompiled shader's stream output info, and produce a bitmask * of which VARYING_SLOT_* are captured for stream output. * * Core Gallium stores output->register_index as a "slot" number, where * slots are assigned consecutively to all outputs in info->outputs_written. * This naive packing of outputs doesn't work for us - we too have slots, * but the layout is defined by the VUE map, which we won't have until we * compile a specific shader variant. So, we remap these and simply store * VARYING_SLOT_* in our copy's output->register_index fields. * * We then produce a bitmask of outputs which are used for SO. * * Implementation from iris. */ static uint64_t update_so_info(struct pipe_stream_output_info *so_info, uint64_t outputs_written) { uint64_t so_outputs = 0; uint8_t reverse_map[64] = {}; unsigned slot = 0; while (outputs_written) reverse_map[slot++] = u_bit_scan64(&outputs_written); for (unsigned i = 0; i < so_info->num_outputs; i++) { struct pipe_stream_output *output = &so_info->output[i]; /* Map Gallium's condensed "slots" back to real VARYING_SLOT_* enums */ output->register_index = reverse_map[output->register_index]; so_outputs |= 1ull << output->register_index; } return so_outputs; } static void panfrost_bind_shader_state( struct pipe_context *pctx, void *hwcso, enum pipe_shader_type type) { struct panfrost_context *ctx = pan_context(pctx); ctx->shader[type] = hwcso; if (type == PIPE_SHADER_FRAGMENT) ctx->dirty |= PAN_DIRTY_FS; else ctx->dirty |= PAN_DIRTY_VS; if (!hwcso) return; /* Match the appropriate variant */ signed variant = -1; struct panfrost_shader_variants *variants = (struct panfrost_shader_variants *) hwcso; for (unsigned i = 0; i < variants->variant_count; ++i) { if (panfrost_variant_matches(ctx, &variants->variants[i], type)) { variant = i; break; } } if (variant == -1) { /* No variant matched, so create a new one */ variant = variants->variant_count++; assert(variants->variant_count < MAX_SHADER_VARIANTS); struct panfrost_shader_state *v = &variants->variants[variant]; if (type == PIPE_SHADER_FRAGMENT) { v->alpha_state = ctx->depth_stencil->alpha; if (ctx->rasterizer) { v->point_sprite_mask = ctx->rasterizer->base.sprite_coord_enable; v->point_sprite_upper_left = ctx->rasterizer->base.sprite_coord_mode == PIPE_SPRITE_COORD_UPPER_LEFT; } } variants->variants[variant].tripipe = calloc(1, sizeof(struct mali_shader_meta)); } /* Select this variant */ variants->active_variant = variant; struct panfrost_shader_state *shader_state = &variants->variants[variant]; assert(panfrost_variant_matches(ctx, shader_state, type)); /* We finally have a variant, so compile it */ if (!shader_state->compiled) { uint64_t outputs_written = 0; panfrost_shader_compile(ctx, shader_state->tripipe, variants->base.type, variants->base.type == PIPE_SHADER_IR_NIR ? variants->base.ir.nir : variants->base.tokens, tgsi_processor_to_shader_stage(type), shader_state, &outputs_written); shader_state->compiled = true; /* Fixup the stream out information, since what Gallium returns * normally is mildly insane */ shader_state->stream_output = variants->base.stream_output; shader_state->so_mask = update_so_info(&shader_state->stream_output, outputs_written); } } static void panfrost_bind_vs_state(struct pipe_context *pctx, void *hwcso) { panfrost_bind_shader_state(pctx, hwcso, PIPE_SHADER_VERTEX); } static void panfrost_bind_fs_state(struct pipe_context *pctx, void *hwcso) { panfrost_bind_shader_state(pctx, hwcso, PIPE_SHADER_FRAGMENT); } static void panfrost_set_vertex_buffers( struct pipe_context *pctx, unsigned start_slot, unsigned num_buffers, const struct pipe_vertex_buffer *buffers) { struct panfrost_context *ctx = pan_context(pctx); util_set_vertex_buffers_mask(ctx->vertex_buffers, &ctx->vb_mask, buffers, start_slot, num_buffers); } static void panfrost_set_constant_buffer( struct pipe_context *pctx, enum pipe_shader_type shader, uint index, const struct pipe_constant_buffer *buf) { struct panfrost_context *ctx = pan_context(pctx); struct panfrost_constant_buffer *pbuf = &ctx->constant_buffer[shader]; util_copy_constant_buffer(&pbuf->cb[index], buf); unsigned mask = (1 << index); if (unlikely(!buf)) { pbuf->enabled_mask &= ~mask; pbuf->dirty_mask &= ~mask; return; } pbuf->enabled_mask |= mask; pbuf->dirty_mask |= mask; } static void panfrost_set_stencil_ref( struct pipe_context *pctx, const struct pipe_stencil_ref *ref) { struct panfrost_context *ctx = pan_context(pctx); ctx->stencil_ref = *ref; /* Shader core dirty */ ctx->dirty |= PAN_DIRTY_FS; } static enum mali_texture_type panfrost_translate_texture_type(enum pipe_texture_target t) { switch (t) { case PIPE_BUFFER: case PIPE_TEXTURE_1D: case PIPE_TEXTURE_1D_ARRAY: return MALI_TEX_1D; case PIPE_TEXTURE_2D: case PIPE_TEXTURE_2D_ARRAY: case PIPE_TEXTURE_RECT: return MALI_TEX_2D; case PIPE_TEXTURE_3D: return MALI_TEX_3D; case PIPE_TEXTURE_CUBE: case PIPE_TEXTURE_CUBE_ARRAY: return MALI_TEX_CUBE; default: unreachable("Unknown target"); } } static struct pipe_sampler_view * panfrost_create_sampler_view( struct pipe_context *pctx, struct pipe_resource *texture, const struct pipe_sampler_view *template) { struct panfrost_sampler_view *so = rzalloc(pctx, struct panfrost_sampler_view); int bytes_per_pixel = util_format_get_blocksize(texture->format); pipe_reference(NULL, &texture->reference); struct panfrost_resource *prsrc = (struct panfrost_resource *) texture; assert(prsrc->bo); so->base = *template; so->base.texture = texture; so->base.reference.count = 1; so->base.context = pctx; /* sampler_views correspond to texture descriptors, minus the texture * (data) itself. So, we serialise the descriptor here and cache it for * later. */ const struct util_format_description *desc = util_format_description(prsrc->base.format); unsigned char user_swizzle[4] = { template->swizzle_r, template->swizzle_g, template->swizzle_b, template->swizzle_a }; enum mali_format format = panfrost_find_format(desc); /* Check if we need to set a custom stride by computing the "expected" * stride and comparing it to what the BO actually wants. Only applies * to linear textures, since tiled/compressed textures have strict * alignment requirements for their strides as it is */ unsigned first_level = template->u.tex.first_level; unsigned last_level = template->u.tex.last_level; if (prsrc->layout == PAN_LINEAR) { for (unsigned l = first_level; l <= last_level; ++l) { unsigned actual_stride = prsrc->slices[l].stride; unsigned width = u_minify(texture->width0, l); unsigned comp_stride = width * bytes_per_pixel; if (comp_stride != actual_stride) { so->manual_stride = true; break; } } } /* In the hardware, array_size refers specifically to array textures, * whereas in Gallium, it also covers cubemaps */ unsigned array_size = texture->array_size; if (template->target == PIPE_TEXTURE_CUBE) { /* TODO: Cubemap arrays */ assert(array_size == 6); array_size /= 6; } struct mali_texture_descriptor texture_descriptor = { .width = MALI_POSITIVE(u_minify(texture->width0, first_level)), .height = MALI_POSITIVE(u_minify(texture->height0, first_level)), .depth = MALI_POSITIVE(u_minify(texture->depth0, first_level)), .array_size = MALI_POSITIVE(array_size), .format = { .swizzle = panfrost_translate_swizzle_4(desc->swizzle), .format = format, .srgb = desc->colorspace == UTIL_FORMAT_COLORSPACE_SRGB, .type = panfrost_translate_texture_type(template->target), .unknown2 = 0x1, }, .swizzle = panfrost_translate_swizzle_4(user_swizzle) }; texture_descriptor.levels = last_level - first_level; so->hw = texture_descriptor; return (struct pipe_sampler_view *) so; } static void panfrost_set_sampler_views( struct pipe_context *pctx, enum pipe_shader_type shader, unsigned start_slot, unsigned num_views, struct pipe_sampler_view **views) { struct panfrost_context *ctx = pan_context(pctx); assert(start_slot == 0); unsigned new_nr = 0; for (unsigned i = 0; i < num_views; ++i) { if (views[i]) new_nr = i + 1; } ctx->sampler_view_count[shader] = new_nr; memcpy(ctx->sampler_views[shader], views, num_views * sizeof (void *)); ctx->dirty |= PAN_DIRTY_TEXTURES; } static void panfrost_sampler_view_destroy( struct pipe_context *pctx, struct pipe_sampler_view *view) { pipe_resource_reference(&view->texture, NULL); ralloc_free(view); } static void panfrost_set_shader_buffers( struct pipe_context *pctx, enum pipe_shader_type shader, unsigned start, unsigned count, const struct pipe_shader_buffer *buffers, unsigned writable_bitmask) { struct panfrost_context *ctx = pan_context(pctx); util_set_shader_buffers_mask(ctx->ssbo[shader], &ctx->ssbo_mask[shader], buffers, start, count); } /* Hints that a framebuffer should use AFBC where possible */ static void panfrost_hint_afbc( struct panfrost_screen *screen, const struct pipe_framebuffer_state *fb) { /* AFBC implemenation incomplete; hide it */ if (!(pan_debug & PAN_DBG_AFBC)) return; /* Hint AFBC to the resources bound to each color buffer */ for (unsigned i = 0; i < fb->nr_cbufs; ++i) { struct pipe_surface *surf = fb->cbufs[i]; struct panfrost_resource *rsrc = pan_resource(surf->texture); panfrost_resource_hint_layout(screen, rsrc, PAN_AFBC, 1); } /* Also hint it to the depth buffer */ if (fb->zsbuf) { struct panfrost_resource *rsrc = pan_resource(fb->zsbuf->texture); panfrost_resource_hint_layout(screen, rsrc, PAN_AFBC, 1); } } static void panfrost_set_framebuffer_state(struct pipe_context *pctx, const struct pipe_framebuffer_state *fb) { struct panfrost_context *ctx = pan_context(pctx); /* Flush when switching framebuffers, but not if the framebuffer * state is being restored by u_blitter */ struct panfrost_job *job = panfrost_get_job_for_fbo(ctx); bool is_scanout = panfrost_is_scanout(ctx); bool has_draws = job->last_job.gpu; /* Bail out early when the current and new states are the same. */ if (util_framebuffer_state_equal(&ctx->pipe_framebuffer, fb)) return; /* The wallpaper logic sets a new FB state before doing the blit and * restore the old one when it's done. Those FB states are reported to * be different because the surface they are pointing to are different, * but those surfaces actually point to the same cbufs/zbufs. In that * case we definitely don't want new FB descs to be emitted/attached * since the job is expected to be flushed just after the blit is done, * so let's just copy the new state and return here. */ if (ctx->wallpaper_batch) { util_copy_framebuffer_state(&ctx->pipe_framebuffer, fb); return; } if (!is_scanout || has_draws) panfrost_flush(pctx, NULL, PIPE_FLUSH_END_OF_FRAME); else assert(!ctx->payloads[PIPE_SHADER_VERTEX].postfix.framebuffer && !ctx->payloads[PIPE_SHADER_FRAGMENT].postfix.framebuffer); /* Invalidate the FBO job cache since we've just been assigned a new * FB state. */ ctx->job = NULL; util_copy_framebuffer_state(&ctx->pipe_framebuffer, fb); /* Given that we're rendering, we'd love to have compression */ struct panfrost_screen *screen = pan_screen(ctx->base.screen); panfrost_hint_afbc(screen, &ctx->pipe_framebuffer); for (unsigned i = 0; i < PIPE_SHADER_TYPES; ++i) ctx->payloads[i].postfix.framebuffer = 0; } static void * panfrost_create_depth_stencil_state(struct pipe_context *pipe, const struct pipe_depth_stencil_alpha_state *depth_stencil) { return mem_dup(depth_stencil, sizeof(*depth_stencil)); } static void panfrost_bind_depth_stencil_state(struct pipe_context *pipe, void *cso) { struct panfrost_context *ctx = pan_context(pipe); struct pipe_depth_stencil_alpha_state *depth_stencil = cso; ctx->depth_stencil = depth_stencil; if (!depth_stencil) return; /* Alpha does not exist in the hardware (it's not in ES3), so it's * emulated in the fragment shader */ if (depth_stencil->alpha.enabled) { /* We need to trigger a new shader (maybe) */ ctx->base.bind_fs_state(&ctx->base, ctx->shader[PIPE_SHADER_FRAGMENT]); } /* Stencil state */ SET_BIT(ctx->fragment_shader_core.unknown2_4, MALI_STENCIL_TEST, depth_stencil->stencil[0].enabled); panfrost_make_stencil_state(&depth_stencil->stencil[0], &ctx->fragment_shader_core.stencil_front); ctx->fragment_shader_core.stencil_mask_front = depth_stencil->stencil[0].writemask; /* If back-stencil is not enabled, use the front values */ bool back_enab = ctx->depth_stencil->stencil[1].enabled; unsigned back_index = back_enab ? 1 : 0; panfrost_make_stencil_state(&depth_stencil->stencil[back_index], &ctx->fragment_shader_core.stencil_back); ctx->fragment_shader_core.stencil_mask_back = depth_stencil->stencil[back_index].writemask; /* Depth state (TODO: Refactor) */ SET_BIT(ctx->fragment_shader_core.unknown2_3, MALI_DEPTH_TEST, depth_stencil->depth.enabled); int func = depth_stencil->depth.enabled ? depth_stencil->depth.func : PIPE_FUNC_ALWAYS; ctx->fragment_shader_core.unknown2_3 &= ~MALI_DEPTH_FUNC_MASK; ctx->fragment_shader_core.unknown2_3 |= MALI_DEPTH_FUNC(panfrost_translate_compare_func(func)); /* Bounds test not implemented */ assert(!depth_stencil->depth.bounds_test); ctx->dirty |= PAN_DIRTY_FS; } static void panfrost_delete_depth_stencil_state(struct pipe_context *pipe, void *depth) { free( depth ); } static void panfrost_set_sample_mask(struct pipe_context *pipe, unsigned sample_mask) { } static void panfrost_set_clip_state(struct pipe_context *pipe, const struct pipe_clip_state *clip) { //struct panfrost_context *panfrost = pan_context(pipe); } static void panfrost_set_viewport_states(struct pipe_context *pipe, unsigned start_slot, unsigned num_viewports, const struct pipe_viewport_state *viewports) { struct panfrost_context *ctx = pan_context(pipe); assert(start_slot == 0); assert(num_viewports == 1); ctx->pipe_viewport = *viewports; } static void panfrost_set_scissor_states(struct pipe_context *pipe, unsigned start_slot, unsigned num_scissors, const struct pipe_scissor_state *scissors) { struct panfrost_context *ctx = pan_context(pipe); assert(start_slot == 0); assert(num_scissors == 1); ctx->scissor = *scissors; } static void panfrost_set_polygon_stipple(struct pipe_context *pipe, const struct pipe_poly_stipple *stipple) { //struct panfrost_context *panfrost = pan_context(pipe); } static void panfrost_set_active_query_state(struct pipe_context *pipe, bool enable) { struct panfrost_context *ctx = pan_context(pipe); ctx->active_queries = enable; } static void panfrost_destroy(struct pipe_context *pipe) { struct panfrost_context *panfrost = pan_context(pipe); struct panfrost_screen *screen = pan_screen(pipe->screen); if (panfrost->blitter) util_blitter_destroy(panfrost->blitter); if (panfrost->blitter_wallpaper) util_blitter_destroy(panfrost->blitter_wallpaper); panfrost_drm_free_slab(screen, &panfrost->scratchpad); panfrost_drm_free_slab(screen, &panfrost->tiler_heap); panfrost_drm_free_slab(screen, &panfrost->tiler_dummy); ralloc_free(pipe); } static struct pipe_query * panfrost_create_query(struct pipe_context *pipe, unsigned type, unsigned index) { struct panfrost_query *q = rzalloc(pipe, struct panfrost_query); q->type = type; q->index = index; return (struct pipe_query *) q; } static void panfrost_destroy_query(struct pipe_context *pipe, struct pipe_query *q) { ralloc_free(q); } static bool panfrost_begin_query(struct pipe_context *pipe, struct pipe_query *q) { struct panfrost_context *ctx = pan_context(pipe); struct panfrost_query *query = (struct panfrost_query *) q; switch (query->type) { case PIPE_QUERY_OCCLUSION_COUNTER: case PIPE_QUERY_OCCLUSION_PREDICATE: case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE: /* Allocate a word for the query results to be stored */ query->transfer = panfrost_allocate_transient(ctx, sizeof(unsigned)); ctx->occlusion_query = query; break; /* Geometry statistics are computed in the driver. XXX: geom/tess * shaders.. */ case PIPE_QUERY_PRIMITIVES_GENERATED: query->start = ctx->prims_generated; break; case PIPE_QUERY_PRIMITIVES_EMITTED: query->start = ctx->tf_prims_generated; break; default: fprintf(stderr, "Skipping query %u\n", query->type); break; } return true; } static bool panfrost_end_query(struct pipe_context *pipe, struct pipe_query *q) { struct panfrost_context *ctx = pan_context(pipe); struct panfrost_query *query = (struct panfrost_query *) q; switch (query->type) { case PIPE_QUERY_OCCLUSION_COUNTER: case PIPE_QUERY_OCCLUSION_PREDICATE: case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE: ctx->occlusion_query = NULL; break; case PIPE_QUERY_PRIMITIVES_GENERATED: query->end = ctx->prims_generated; break; case PIPE_QUERY_PRIMITIVES_EMITTED: query->end = ctx->tf_prims_generated; break; } return true; } static bool panfrost_get_query_result(struct pipe_context *pipe, struct pipe_query *q, bool wait, union pipe_query_result *vresult) { struct panfrost_query *query = (struct panfrost_query *) q; switch (query->type) { case PIPE_QUERY_OCCLUSION_COUNTER: case PIPE_QUERY_OCCLUSION_PREDICATE: case PIPE_QUERY_OCCLUSION_PREDICATE_CONSERVATIVE: /* Flush first */ panfrost_flush(pipe, NULL, PIPE_FLUSH_END_OF_FRAME); /* Read back the query results */ unsigned *result = (unsigned *) query->transfer.cpu; unsigned passed = *result; if (query->type == PIPE_QUERY_OCCLUSION_COUNTER) { vresult->u64 = passed; } else { vresult->b = !!passed; } break; case PIPE_QUERY_PRIMITIVES_GENERATED: case PIPE_QUERY_PRIMITIVES_EMITTED: panfrost_flush(pipe, NULL, PIPE_FLUSH_END_OF_FRAME); vresult->u64 = query->end - query->start; break; default: DBG("Skipped query get %u\n", query->type); break; } return true; } static struct pipe_stream_output_target * panfrost_create_stream_output_target(struct pipe_context *pctx, struct pipe_resource *prsc, unsigned buffer_offset, unsigned buffer_size) { struct pipe_stream_output_target *target; target = rzalloc(pctx, struct pipe_stream_output_target); if (!target) return NULL; pipe_reference_init(&target->reference, 1); pipe_resource_reference(&target->buffer, prsc); target->context = pctx; target->buffer_offset = buffer_offset; target->buffer_size = buffer_size; return target; } static void panfrost_stream_output_target_destroy(struct pipe_context *pctx, struct pipe_stream_output_target *target) { pipe_resource_reference(&target->buffer, NULL); ralloc_free(target); } static void panfrost_set_stream_output_targets(struct pipe_context *pctx, unsigned num_targets, struct pipe_stream_output_target **targets, const unsigned *offsets) { struct panfrost_context *ctx = pan_context(pctx); struct panfrost_streamout *so = &ctx->streamout; assert(num_targets <= ARRAY_SIZE(so->targets)); for (unsigned i = 0; i < num_targets; i++) { if (offsets[i] != -1) so->offsets[i] = offsets[i]; pipe_so_target_reference(&so->targets[i], targets[i]); } for (unsigned i = 0; i < so->num_targets; i++) pipe_so_target_reference(&so->targets[i], NULL); so->num_targets = num_targets; } static void panfrost_setup_hardware(struct panfrost_context *ctx) { struct pipe_context *gallium = (struct pipe_context *) ctx; struct panfrost_screen *screen = pan_screen(gallium->screen); panfrost_drm_allocate_slab(screen, &ctx->scratchpad, 64*4, false, 0, 0, 0); panfrost_drm_allocate_slab(screen, &ctx->tiler_heap, 4096, false, PAN_ALLOCATE_INVISIBLE | PAN_ALLOCATE_GROWABLE, 1, 128); panfrost_drm_allocate_slab(screen, &ctx->tiler_dummy, 1, false, PAN_ALLOCATE_INVISIBLE, 0, 0); } /* New context creation, which also does hardware initialisation since I don't * know the better way to structure this :smirk: */ struct pipe_context * panfrost_create_context(struct pipe_screen *screen, void *priv, unsigned flags) { struct panfrost_context *ctx = rzalloc(screen, struct panfrost_context); struct panfrost_screen *pscreen = pan_screen(screen); memset(ctx, 0, sizeof(*ctx)); struct pipe_context *gallium = (struct pipe_context *) ctx; ctx->is_t6xx = pscreen->gpu_id < 0x0700; /* Literally, "earlier than T700" */ gallium->screen = screen; gallium->destroy = panfrost_destroy; gallium->set_framebuffer_state = panfrost_set_framebuffer_state; gallium->flush = panfrost_flush; gallium->clear = panfrost_clear; gallium->draw_vbo = panfrost_draw_vbo; gallium->set_vertex_buffers = panfrost_set_vertex_buffers; gallium->set_constant_buffer = panfrost_set_constant_buffer; gallium->set_shader_buffers = panfrost_set_shader_buffers; gallium->set_stencil_ref = panfrost_set_stencil_ref; gallium->create_sampler_view = panfrost_create_sampler_view; gallium->set_sampler_views = panfrost_set_sampler_views; gallium->sampler_view_destroy = panfrost_sampler_view_destroy; gallium->create_rasterizer_state = panfrost_create_rasterizer_state; gallium->bind_rasterizer_state = panfrost_bind_rasterizer_state; gallium->delete_rasterizer_state = panfrost_generic_cso_delete; gallium->create_vertex_elements_state = panfrost_create_vertex_elements_state; gallium->bind_vertex_elements_state = panfrost_bind_vertex_elements_state; gallium->delete_vertex_elements_state = panfrost_generic_cso_delete; gallium->create_fs_state = panfrost_create_shader_state; gallium->delete_fs_state = panfrost_delete_shader_state; gallium->bind_fs_state = panfrost_bind_fs_state; gallium->create_vs_state = panfrost_create_shader_state; gallium->delete_vs_state = panfrost_delete_shader_state; gallium->bind_vs_state = panfrost_bind_vs_state; gallium->create_sampler_state = panfrost_create_sampler_state; gallium->delete_sampler_state = panfrost_generic_cso_delete; gallium->bind_sampler_states = panfrost_bind_sampler_states; gallium->create_depth_stencil_alpha_state = panfrost_create_depth_stencil_state; gallium->bind_depth_stencil_alpha_state = panfrost_bind_depth_stencil_state; gallium->delete_depth_stencil_alpha_state = panfrost_delete_depth_stencil_state; gallium->set_sample_mask = panfrost_set_sample_mask; gallium->set_clip_state = panfrost_set_clip_state; gallium->set_viewport_states = panfrost_set_viewport_states; gallium->set_scissor_states = panfrost_set_scissor_states; gallium->set_polygon_stipple = panfrost_set_polygon_stipple; gallium->set_active_query_state = panfrost_set_active_query_state; gallium->create_query = panfrost_create_query; gallium->destroy_query = panfrost_destroy_query; gallium->begin_query = panfrost_begin_query; gallium->end_query = panfrost_end_query; gallium->get_query_result = panfrost_get_query_result; gallium->create_stream_output_target = panfrost_create_stream_output_target; gallium->stream_output_target_destroy = panfrost_stream_output_target_destroy; gallium->set_stream_output_targets = panfrost_set_stream_output_targets; panfrost_resource_context_init(gallium); panfrost_blend_context_init(gallium); panfrost_compute_context_init(gallium); panfrost_drm_init_context(ctx); panfrost_setup_hardware(ctx); /* XXX: leaks */ gallium->stream_uploader = u_upload_create_default(gallium); gallium->const_uploader = gallium->stream_uploader; assert(gallium->stream_uploader); /* Midgard supports ES modes, plus QUADS/QUAD_STRIPS/POLYGON */ ctx->draw_modes = (1 << (PIPE_PRIM_POLYGON + 1)) - 1; ctx->primconvert = util_primconvert_create(gallium, ctx->draw_modes); ctx->blitter = util_blitter_create(gallium); ctx->blitter_wallpaper = util_blitter_create(gallium); assert(ctx->blitter); assert(ctx->blitter_wallpaper); ctx->last_fragment_flushed = true; ctx->last_job = NULL; /* Prepare for render! */ panfrost_job_init(ctx); panfrost_emit_vertex_payload(ctx); panfrost_emit_tiler_payload(ctx); panfrost_invalidate_frame(ctx); panfrost_default_shader_backend(ctx); return gallium; }