| /* |
| * 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 <assert.h> |
| |
| #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; |
| } |
| |
| 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) |
| { |
| struct panfrost_context *ctx = batch->ctx; |
| bool has_draws = batch->first_job.gpu; |
| int ret = 0; |
| |
| panfrost_batch_add_bo(batch, ctx->scratchpad); |
| panfrost_batch_add_bo(batch, ctx->tiler_heap); |
| |
| 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); |
| } |