| /* |
| * Copyright 2018-2019 Alyssa Rosenzweig |
| * |
| * 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 "pan_context.h" |
| #include "pan_util.h" |
| #include "pan_format.h" |
| |
| #include "util/u_format.h" |
| |
| /* Mark a surface as written */ |
| |
| static void |
| panfrost_initialize_surface(struct pipe_surface *surf) |
| { |
| unsigned level = surf->u.tex.level; |
| struct panfrost_resource *rsrc = pan_resource(surf->texture); |
| |
| rsrc->slices[level].initialized = true; |
| } |
| |
| /* Generate a fragment job. This should be called once per frame. (According to |
| * presentations, this is supposed to correspond to eglSwapBuffers) */ |
| |
| mali_ptr |
| panfrost_fragment_job(struct panfrost_context *ctx, bool has_draws) |
| { |
| mali_ptr framebuffer = ctx->require_sfbd ? |
| panfrost_sfbd_fragment(ctx, has_draws) : |
| panfrost_mfbd_fragment(ctx, has_draws); |
| |
| /* Mark the affected buffers as initialized, since we're writing to it */ |
| struct pipe_framebuffer_state *fb = &ctx->pipe_framebuffer; |
| |
| for (unsigned i = 0; i < fb->nr_cbufs; ++i) { |
| panfrost_initialize_surface(fb->cbufs[i]); |
| } |
| |
| if (fb->zsbuf) |
| panfrost_initialize_surface(fb->zsbuf); |
| |
| struct mali_job_descriptor_header header = { |
| .job_type = JOB_TYPE_FRAGMENT, |
| .job_index = 1, |
| #ifdef __LP64__ |
| .job_descriptor_size = 1 |
| #endif |
| }; |
| |
| struct panfrost_job *job = panfrost_get_job_for_fbo(ctx); |
| |
| /* The passed tile coords can be out of range in some cases, so we need |
| * to clamp them to the framebuffer size to avoid a TILE_RANGE_FAULT. |
| * Theoretically we also need to clamp the coordinates positive, but we |
| * avoid that edge case as all four values are unsigned. Also, |
| * theoretically we could clamp the minima, but if that has to happen |
| * the asserts would fail anyway (since the maxima would get clamped |
| * and then be smaller than the minima). An edge case of sorts occurs |
| * when no scissors are added to draw, so by default min=~0 and max=0. |
| * But that can't happen if any actual drawing occurs (beyond a |
| * wallpaper reload), so this is again irrelevant in practice. */ |
| |
| job->maxx = MIN2(job->maxx, fb->width); |
| job->maxy = MIN2(job->maxy, fb->height); |
| |
| /* Rendering region must be at least 1x1; otherwise, there is nothing |
| * to do and the whole job chain should have been discarded. */ |
| |
| assert(job->maxx > job->minx); |
| assert(job->maxy > job->miny); |
| |
| struct mali_payload_fragment payload = { |
| .min_tile_coord = MALI_COORDINATE_TO_TILE_MIN(job->minx, job->miny), |
| .max_tile_coord = MALI_COORDINATE_TO_TILE_MAX(job->maxx, job->maxy), |
| .framebuffer = framebuffer, |
| }; |
| |
| /* Normally, there should be no padding. However, fragment jobs are |
| * shared with 64-bit Bifrost systems, and accordingly there is 4-bytes |
| * of zero padding in between. */ |
| |
| struct panfrost_transfer transfer = panfrost_allocate_transient(ctx, sizeof(header) + sizeof(payload)); |
| memcpy(transfer.cpu, &header, sizeof(header)); |
| memcpy(transfer.cpu + sizeof(header), &payload, sizeof(payload)); |
| return transfer.gpu; |
| } |