/* * Copyright (C) 2019 Alyssa Rosenzweig * Copyright (C) 2014-2017 Broadcom * * 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 "drm-uapi/panfrost_drm.h" #include "pan_bo.h" #include "pan_context.h" #include "util/hash_table.h" #include "util/ralloc.h" #include "util/u_format.h" #include "util/u_pack_color.h" #include "pan_util.h" #include "pandecode/decode.h" static struct panfrost_batch * panfrost_create_batch(struct panfrost_context *ctx, const struct pipe_framebuffer_state *key) { struct panfrost_batch *batch = rzalloc(ctx, struct panfrost_batch); batch->ctx = ctx; batch->bos = _mesa_set_create(batch, _mesa_hash_pointer, _mesa_key_pointer_equal); batch->minx = batch->miny = ~0; batch->maxx = batch->maxy = 0; batch->transient_offset = 0; util_dynarray_init(&batch->headers, batch); util_dynarray_init(&batch->gpu_headers, batch); util_copy_framebuffer_state(&batch->key, key); return batch; } static void panfrost_free_batch(struct panfrost_batch *batch) { if (!batch) return; struct panfrost_context *ctx = batch->ctx; set_foreach(batch->bos, entry) { struct panfrost_bo *bo = (struct panfrost_bo *)entry->key; panfrost_bo_unreference(bo); } _mesa_hash_table_remove_key(ctx->batches, &batch->key); if (ctx->batch == batch) ctx->batch = NULL; util_unreference_framebuffer_state(&batch->key); ralloc_free(batch); } static struct panfrost_batch * panfrost_get_batch(struct panfrost_context *ctx, const struct pipe_framebuffer_state *key) { /* Lookup the job first */ struct hash_entry *entry = _mesa_hash_table_search(ctx->batches, key); if (entry) return entry->data; /* Otherwise, let's create a job */ struct panfrost_batch *batch = panfrost_create_batch(ctx, key); /* Save the created job */ _mesa_hash_table_insert(ctx->batches, &batch->key, batch); return batch; } /* Get the job corresponding to the FBO we're currently rendering into */ struct panfrost_batch * panfrost_get_batch_for_fbo(struct panfrost_context *ctx) { /* If we're wallpapering, we special case to workaround * u_blitter abuse */ if (ctx->wallpaper_batch) return ctx->wallpaper_batch; /* If we already began rendering, use that */ if (ctx->batch) { assert(util_framebuffer_state_equal(&ctx->batch->key, &ctx->pipe_framebuffer)); return ctx->batch; } /* If not, look up the job */ struct panfrost_batch *batch = panfrost_get_batch(ctx, &ctx->pipe_framebuffer); /* Set this job as the current FBO job. Will be reset when updating the * FB state and when submitting or releasing a job. */ ctx->batch = batch; return batch; } void panfrost_batch_add_bo(struct panfrost_batch *batch, struct panfrost_bo *bo) { if (!bo) return; if (_mesa_set_search(batch->bos, bo)) return; panfrost_bo_reference(bo); _mesa_set_add(batch->bos, bo); } void panfrost_batch_add_fbo_bos(struct panfrost_batch *batch) { for (unsigned i = 0; i < batch->key.nr_cbufs; ++i) { struct panfrost_resource *rsrc = pan_resource(batch->key.cbufs[i]->texture); panfrost_batch_add_bo(batch, rsrc->bo); } if (batch->key.zsbuf) { struct panfrost_resource *rsrc = pan_resource(batch->key.zsbuf->texture); panfrost_batch_add_bo(batch, rsrc->bo); } } struct panfrost_bo * panfrost_batch_create_bo(struct panfrost_batch *batch, size_t size, uint32_t create_flags) { struct panfrost_bo *bo; bo = panfrost_bo_create(pan_screen(batch->ctx->base.screen), size, create_flags); panfrost_batch_add_bo(batch, bo); /* panfrost_batch_add_bo() has retained a reference and * panfrost_bo_create() initialize the refcnt to 1, so let's * unreference the BO here so it gets released when the batch is * destroyed (unless it's retained by someone else in the meantime). */ panfrost_bo_unreference(bo); return bo; } /* Returns the polygon list's GPU address if available, or otherwise allocates * the polygon list. It's perfectly fast to use allocate/free BO directly, * since we'll hit the BO cache and this is one-per-batch anyway. */ mali_ptr panfrost_batch_get_polygon_list(struct panfrost_batch *batch, unsigned size) { if (batch->polygon_list) { assert(batch->polygon_list->size >= size); } else { /* Create the BO as invisible, as there's no reason to map */ batch->polygon_list = panfrost_batch_create_bo(batch, size, PAN_BO_INVISIBLE); } return batch->polygon_list->gpu; } struct panfrost_bo * panfrost_batch_get_scratchpad(struct panfrost_batch *batch) { if (batch->scratchpad) return batch->scratchpad; batch->scratchpad = panfrost_batch_create_bo(batch, 64 * 4 * 4096, PAN_BO_INVISIBLE); assert(batch->scratchpad); return batch->scratchpad; } struct panfrost_bo * panfrost_batch_get_tiler_heap(struct panfrost_batch *batch) { if (batch->tiler_heap) return batch->tiler_heap; batch->tiler_heap = panfrost_batch_create_bo(batch, 4096 * 4096, PAN_BO_INVISIBLE | PAN_BO_GROWABLE); assert(batch->tiler_heap); return batch->tiler_heap; } struct panfrost_bo * panfrost_batch_get_tiler_dummy(struct panfrost_batch *batch) { if (batch->tiler_dummy) return batch->tiler_dummy; batch->tiler_dummy = panfrost_batch_create_bo(batch, 4096, PAN_BO_INVISIBLE); assert(batch->tiler_dummy); return batch->tiler_dummy; } static void panfrost_batch_draw_wallpaper(struct panfrost_batch *batch) { /* Nothing to reload? TODO: MRT wallpapers */ if (batch->key.cbufs[0] == NULL) return; /* Check if the buffer has any content on it worth preserving */ struct pipe_surface *surf = batch->key.cbufs[0]; struct panfrost_resource *rsrc = pan_resource(surf->texture); unsigned level = surf->u.tex.level; if (!rsrc->slices[level].initialized) return; batch->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_batch_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(batch->ctx, &rects[i]); } batch->ctx->wallpaper_batch = NULL; } static int panfrost_batch_submit_ioctl(struct panfrost_batch *batch, mali_ptr first_job_desc, uint32_t reqs) { struct panfrost_context *ctx = batch->ctx; struct pipe_context *gallium = (struct pipe_context *) ctx; struct panfrost_screen *screen = pan_screen(gallium->screen); struct drm_panfrost_submit submit = {0,}; uint32_t *bo_handles; int ret; submit.in_syncs = (u64) (uintptr_t) &ctx->out_sync; submit.in_sync_count = 1; submit.out_sync = ctx->out_sync; submit.jc = first_job_desc; submit.requirements = reqs; bo_handles = calloc(batch->bos->entries, sizeof(*bo_handles)); assert(bo_handles); set_foreach(batch->bos, entry) { struct panfrost_bo *bo = (struct panfrost_bo *)entry->key; assert(bo->gem_handle > 0); bo_handles[submit.bo_handle_count++] = bo->gem_handle; } submit.bo_handles = (u64) (uintptr_t) bo_handles; ret = drmIoctl(screen->fd, DRM_IOCTL_PANFROST_SUBMIT, &submit); free(bo_handles); if (ret) { fprintf(stderr, "Error submitting: %m\n"); return errno; } /* Trace the job if we're doing that */ if (pan_debug & PAN_DBG_TRACE) { /* Wait so we can get errors reported back */ drmSyncobjWait(screen->fd, &ctx->out_sync, 1, INT64_MAX, 0, NULL); pandecode_jc(submit.jc, FALSE); } return 0; } static int panfrost_batch_submit_jobs(struct panfrost_batch *batch) { bool has_draws = batch->first_job.gpu; int ret = 0; if (has_draws) { ret = panfrost_batch_submit_ioctl(batch, batch->first_job.gpu, 0); assert(!ret); } if (batch->first_tiler.gpu || batch->clear) { mali_ptr fragjob = panfrost_fragment_job(batch, has_draws); ret = panfrost_batch_submit_ioctl(batch, fragjob, PANFROST_JD_REQ_FS); assert(!ret); } return ret; } void panfrost_batch_submit(struct panfrost_batch *batch) { assert(batch); struct panfrost_context *ctx = batch->ctx; int ret; /* Nothing to do! */ if (!batch->last_job.gpu && !batch->clear) goto out; if (!batch->clear && batch->last_tiler.gpu) panfrost_batch_draw_wallpaper(batch); panfrost_scoreboard_link_batch(batch); ret = panfrost_batch_submit_jobs(batch); if (ret) fprintf(stderr, "panfrost_batch_submit failed: %d\n", ret); out: /* If this is the bound batch, the panfrost_context parameters are * relevant so submitting it invalidates those paramaters, but if it's * not bound, the context parameters are for some other batch so we * can't invalidate them. */ if (ctx->batch == batch) panfrost_invalidate_frame(ctx); /* The job has been submitted, let's invalidate the current FBO job * cache. */ assert(!ctx->batch || batch == ctx->batch); ctx->batch = NULL; /* We always stall the pipeline for 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) */ drmSyncobjWait(pan_screen(ctx->base.screen)->fd, &ctx->out_sync, 1, INT64_MAX, 0, NULL); panfrost_free_batch(batch); } void panfrost_batch_set_requirements(struct panfrost_batch *batch) { struct panfrost_context *ctx = batch->ctx; if (ctx->rasterizer && ctx->rasterizer->base.multisample) batch->requirements |= PAN_REQ_MSAA; if (ctx->depth_stencil && ctx->depth_stencil->depth.writemask) batch->requirements |= PAN_REQ_DEPTH_WRITE; } /* Helper to smear a 32-bit color across 128-bit components */ static void pan_pack_color_32(uint32_t *packed, uint32_t v) { for (unsigned i = 0; i < 4; ++i) packed[i] = v; } static void pan_pack_color_64(uint32_t *packed, uint32_t lo, uint32_t hi) { for (unsigned i = 0; i < 4; i += 2) { packed[i + 0] = lo; packed[i + 1] = hi; } } static void pan_pack_color(uint32_t *packed, const union pipe_color_union *color, enum pipe_format format) { /* Alpha magicked to 1.0 if there is no alpha */ bool has_alpha = util_format_has_alpha(format); float clear_alpha = has_alpha ? color->f[3] : 1.0f; /* Packed color depends on the framebuffer format */ const struct util_format_description *desc = util_format_description(format); if (util_format_is_rgba8_variant(desc)) { pan_pack_color_32(packed, (float_to_ubyte(clear_alpha) << 24) | (float_to_ubyte(color->f[2]) << 16) | (float_to_ubyte(color->f[1]) << 8) | (float_to_ubyte(color->f[0]) << 0)); } else if (format == PIPE_FORMAT_B5G6R5_UNORM) { /* First, we convert the components to R5, G6, B5 separately */ unsigned r5 = CLAMP(color->f[0], 0.0, 1.0) * 31.0; unsigned g6 = CLAMP(color->f[1], 0.0, 1.0) * 63.0; unsigned b5 = CLAMP(color->f[2], 0.0, 1.0) * 31.0; /* Then we pack into a sparse u32. TODO: Why these shifts? */ pan_pack_color_32(packed, (b5 << 25) | (g6 << 14) | (r5 << 5)); } else if (format == PIPE_FORMAT_B4G4R4A4_UNORM) { /* We scale the components against 0xF0 (=240.0), rather than 0xFF */ unsigned r4 = CLAMP(color->f[0], 0.0, 1.0) * 240.0; unsigned g4 = CLAMP(color->f[1], 0.0, 1.0) * 240.0; unsigned b4 = CLAMP(color->f[2], 0.0, 1.0) * 240.0; unsigned a4 = CLAMP(clear_alpha, 0.0, 1.0) * 240.0; /* Pack on *byte* intervals */ pan_pack_color_32(packed, (a4 << 24) | (b4 << 16) | (g4 << 8) | r4); } else if (format == PIPE_FORMAT_B5G5R5A1_UNORM) { /* Scale as expected but shift oddly */ unsigned r5 = round(CLAMP(color->f[0], 0.0, 1.0)) * 31.0; unsigned g5 = round(CLAMP(color->f[1], 0.0, 1.0)) * 31.0; unsigned b5 = round(CLAMP(color->f[2], 0.0, 1.0)) * 31.0; unsigned a1 = round(CLAMP(clear_alpha, 0.0, 1.0)) * 1.0; pan_pack_color_32(packed, (a1 << 31) | (b5 << 25) | (g5 << 15) | (r5 << 5)); } else { /* Try Gallium's generic default path. Doesn't work for all * formats but it's a good guess. */ union util_color out; if (util_format_is_pure_integer(format)) { memcpy(out.ui, color->ui, 16); } else { util_pack_color(color->f, format, &out); } unsigned size = util_format_get_blocksize(format); if (size == 1) { unsigned b = out.ui[0]; unsigned s = b | (b << 8); pan_pack_color_32(packed, s | (s << 16)); } else if (size == 2) pan_pack_color_32(packed, out.ui[0] | (out.ui[0] << 16)); else if (size == 4) pan_pack_color_32(packed, out.ui[0]); else if (size == 8) pan_pack_color_64(packed, out.ui[0], out.ui[1]); else if (size == 16) memcpy(packed, out.ui, 16); else unreachable("Unknown generic format size packing clear colour"); } } void panfrost_batch_clear(struct panfrost_batch *batch, unsigned buffers, const union pipe_color_union *color, double depth, unsigned stencil) { struct panfrost_context *ctx = batch->ctx; if (buffers & PIPE_CLEAR_COLOR) { for (unsigned i = 0; i < PIPE_MAX_COLOR_BUFS; ++i) { if (!(buffers & (PIPE_CLEAR_COLOR0 << i))) continue; enum pipe_format format = ctx->pipe_framebuffer.cbufs[i]->format; pan_pack_color(batch->clear_color[i], color, format); } } if (buffers & PIPE_CLEAR_DEPTH) { batch->clear_depth = depth; } if (buffers & PIPE_CLEAR_STENCIL) { batch->clear_stencil = stencil; } batch->clear |= buffers; /* Clearing affects the entire framebuffer (by definition -- this is * the Gallium clear callback, which clears the whole framebuffer. If * the scissor test were enabled from the GL side, the state tracker * would emit a quad instead and we wouldn't go down this code path) */ panfrost_batch_union_scissor(batch, 0, 0, ctx->pipe_framebuffer.width, ctx->pipe_framebuffer.height); } static bool panfrost_batch_compare(const void *a, const void *b) { return util_framebuffer_state_equal(a, b); } static uint32_t panfrost_batch_hash(const void *key) { return _mesa_hash_data(key, sizeof(struct pipe_framebuffer_state)); } /* Given a new bounding rectangle (scissor), let the job cover the union of the * new and old bounding rectangles */ void panfrost_batch_union_scissor(struct panfrost_batch *batch, unsigned minx, unsigned miny, unsigned maxx, unsigned maxy) { batch->minx = MIN2(batch->minx, minx); batch->miny = MIN2(batch->miny, miny); batch->maxx = MAX2(batch->maxx, maxx); batch->maxy = MAX2(batch->maxy, maxy); } void panfrost_batch_intersection_scissor(struct panfrost_batch *batch, unsigned minx, unsigned miny, unsigned maxx, unsigned maxy) { batch->minx = MAX2(batch->minx, minx); batch->miny = MAX2(batch->miny, miny); batch->maxx = MIN2(batch->maxx, maxx); batch->maxy = MIN2(batch->maxy, maxy); } /* Are we currently rendering to the screen (rather than an FBO)? */ bool panfrost_batch_is_scanout(struct panfrost_batch *batch) { /* If there is no color buffer, it's an FBO */ if (batch->key.nr_cbufs != 1) return false; /* If we're too early that no framebuffer was sent, it's scanout */ if (!batch->key.cbufs[0]) return true; return batch->key.cbufs[0]->texture->bind & PIPE_BIND_DISPLAY_TARGET || batch->key.cbufs[0]->texture->bind & PIPE_BIND_SCANOUT || batch->key.cbufs[0]->texture->bind & PIPE_BIND_SHARED; } void panfrost_batch_init(struct panfrost_context *ctx) { ctx->batches = _mesa_hash_table_create(ctx, panfrost_batch_hash, panfrost_batch_compare); }