| /* |
| * Copyright © 2014-2015 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. |
| */ |
| |
| /** @file vc4_job.c |
| * |
| * Functions for submitting VC4 render jobs to the kernel. |
| */ |
| |
| #include <xf86drm.h> |
| #include "vc4_cl_dump.h" |
| #include "vc4_context.h" |
| #include "util/hash_table.h" |
| |
| static void |
| vc4_job_free(struct vc4_context *vc4, struct vc4_job *job) |
| { |
| struct vc4_bo **referenced_bos = job->bo_pointers.base; |
| for (int i = 0; i < cl_offset(&job->bo_handles) / 4; i++) { |
| vc4_bo_unreference(&referenced_bos[i]); |
| } |
| |
| _mesa_hash_table_remove_key(vc4->jobs, &job->key); |
| |
| if (job->color_write) { |
| _mesa_hash_table_remove_key(vc4->write_jobs, |
| job->color_write->texture); |
| pipe_surface_reference(&job->color_write, NULL); |
| } |
| if (job->msaa_color_write) { |
| _mesa_hash_table_remove_key(vc4->write_jobs, |
| job->msaa_color_write->texture); |
| pipe_surface_reference(&job->msaa_color_write, NULL); |
| } |
| if (job->zs_write) { |
| _mesa_hash_table_remove_key(vc4->write_jobs, |
| job->zs_write->texture); |
| pipe_surface_reference(&job->zs_write, NULL); |
| } |
| if (job->msaa_zs_write) { |
| _mesa_hash_table_remove_key(vc4->write_jobs, |
| job->msaa_zs_write->texture); |
| pipe_surface_reference(&job->msaa_zs_write, NULL); |
| } |
| |
| pipe_surface_reference(&job->color_read, NULL); |
| pipe_surface_reference(&job->zs_read, NULL); |
| |
| if (vc4->job == job) |
| vc4->job = NULL; |
| |
| ralloc_free(job); |
| } |
| |
| static struct vc4_job * |
| vc4_job_create(struct vc4_context *vc4) |
| { |
| struct vc4_job *job = rzalloc(vc4, struct vc4_job); |
| |
| vc4_init_cl(job, &job->bcl); |
| vc4_init_cl(job, &job->shader_rec); |
| vc4_init_cl(job, &job->uniforms); |
| vc4_init_cl(job, &job->bo_handles); |
| vc4_init_cl(job, &job->bo_pointers); |
| |
| job->draw_min_x = ~0; |
| job->draw_min_y = ~0; |
| job->draw_max_x = 0; |
| job->draw_max_y = 0; |
| |
| job->last_gem_handle_hindex = ~0; |
| |
| if (vc4->perfmon) |
| job->perfmon = vc4->perfmon; |
| |
| return job; |
| } |
| |
| void |
| vc4_flush_jobs_writing_resource(struct vc4_context *vc4, |
| struct pipe_resource *prsc) |
| { |
| struct hash_entry *entry = _mesa_hash_table_search(vc4->write_jobs, |
| prsc); |
| if (entry) { |
| struct vc4_job *job = entry->data; |
| vc4_job_submit(vc4, job); |
| } |
| } |
| |
| void |
| vc4_flush_jobs_reading_resource(struct vc4_context *vc4, |
| struct pipe_resource *prsc) |
| { |
| struct vc4_resource *rsc = vc4_resource(prsc); |
| |
| vc4_flush_jobs_writing_resource(vc4, prsc); |
| |
| hash_table_foreach(vc4->jobs, entry) { |
| struct vc4_job *job = entry->data; |
| |
| struct vc4_bo **referenced_bos = job->bo_pointers.base; |
| bool found = false; |
| for (int i = 0; i < cl_offset(&job->bo_handles) / 4; i++) { |
| if (referenced_bos[i] == rsc->bo) { |
| found = true; |
| break; |
| } |
| } |
| if (found) { |
| vc4_job_submit(vc4, job); |
| continue; |
| } |
| |
| /* Also check for the Z/color buffers, since the references to |
| * those are only added immediately before submit. |
| */ |
| if (job->color_read && !(job->cleared & PIPE_CLEAR_COLOR)) { |
| struct vc4_resource *ctex = |
| vc4_resource(job->color_read->texture); |
| if (ctex->bo == rsc->bo) { |
| vc4_job_submit(vc4, job); |
| continue; |
| } |
| } |
| |
| if (job->zs_read && !(job->cleared & |
| (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL))) { |
| struct vc4_resource *ztex = |
| vc4_resource(job->zs_read->texture); |
| if (ztex->bo == rsc->bo) { |
| vc4_job_submit(vc4, job); |
| continue; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Returns a vc4_job struture for tracking V3D rendering to a particular FBO. |
| * |
| * If we've already started rendering to this FBO, then return old same job, |
| * otherwise make a new one. If we're beginning rendering to an FBO, make |
| * sure that any previous reads of the FBO (or writes to its color/Z surfaces) |
| * have been flushed. |
| */ |
| struct vc4_job * |
| vc4_get_job(struct vc4_context *vc4, |
| struct pipe_surface *cbuf, struct pipe_surface *zsbuf) |
| { |
| /* Return the existing job for this FBO if we have one */ |
| struct vc4_job_key local_key = {.cbuf = cbuf, .zsbuf = zsbuf}; |
| struct hash_entry *entry = _mesa_hash_table_search(vc4->jobs, |
| &local_key); |
| if (entry) |
| return entry->data; |
| |
| /* Creating a new job. Make sure that any previous jobs reading or |
| * writing these buffers are flushed. |
| */ |
| if (cbuf) |
| vc4_flush_jobs_reading_resource(vc4, cbuf->texture); |
| if (zsbuf) |
| vc4_flush_jobs_reading_resource(vc4, zsbuf->texture); |
| |
| struct vc4_job *job = vc4_job_create(vc4); |
| |
| if (cbuf) { |
| if (cbuf->texture->nr_samples > 1) { |
| job->msaa = true; |
| pipe_surface_reference(&job->msaa_color_write, cbuf); |
| } else { |
| pipe_surface_reference(&job->color_write, cbuf); |
| } |
| } |
| |
| if (zsbuf) { |
| if (zsbuf->texture->nr_samples > 1) { |
| job->msaa = true; |
| pipe_surface_reference(&job->msaa_zs_write, zsbuf); |
| } else { |
| pipe_surface_reference(&job->zs_write, zsbuf); |
| } |
| } |
| |
| if (job->msaa) { |
| job->tile_width = 32; |
| job->tile_height = 32; |
| } else { |
| job->tile_width = 64; |
| job->tile_height = 64; |
| } |
| |
| if (cbuf) |
| _mesa_hash_table_insert(vc4->write_jobs, cbuf->texture, job); |
| if (zsbuf) |
| _mesa_hash_table_insert(vc4->write_jobs, zsbuf->texture, job); |
| |
| job->key.cbuf = cbuf; |
| job->key.zsbuf = zsbuf; |
| _mesa_hash_table_insert(vc4->jobs, &job->key, job); |
| |
| return job; |
| } |
| |
| struct vc4_job * |
| vc4_get_job_for_fbo(struct vc4_context *vc4) |
| { |
| if (vc4->job) |
| return vc4->job; |
| |
| struct pipe_surface *cbuf = vc4->framebuffer.cbufs[0]; |
| struct pipe_surface *zsbuf = vc4->framebuffer.zsbuf; |
| struct vc4_job *job = vc4_get_job(vc4, cbuf, zsbuf); |
| |
| /* The dirty flags are tracking what's been updated while vc4->job has |
| * been bound, so set them all to ~0 when switching between jobs. We |
| * also need to reset all state at the start of rendering. |
| */ |
| vc4->dirty = ~0; |
| |
| /* Set up the read surfaces in the job. If they aren't actually |
| * getting read (due to a clear starting the frame), job->cleared will |
| * mask out the read. |
| */ |
| pipe_surface_reference(&job->color_read, cbuf); |
| pipe_surface_reference(&job->zs_read, zsbuf); |
| |
| /* If we're binding to uninitialized buffers, no need to load their |
| * contents before drawing. |
| */ |
| if (cbuf) { |
| struct vc4_resource *rsc = vc4_resource(cbuf->texture); |
| if (!rsc->writes) |
| job->cleared |= PIPE_CLEAR_COLOR0; |
| } |
| |
| if (zsbuf) { |
| struct vc4_resource *rsc = vc4_resource(zsbuf->texture); |
| if (!rsc->writes) |
| job->cleared |= PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL; |
| } |
| |
| job->draw_tiles_x = DIV_ROUND_UP(vc4->framebuffer.width, |
| job->tile_width); |
| job->draw_tiles_y = DIV_ROUND_UP(vc4->framebuffer.height, |
| job->tile_height); |
| |
| /* Initialize the job with the raster order flags -- each draw will |
| * check that we haven't changed the flags, since that requires a |
| * flush. |
| */ |
| if (vc4->rasterizer) |
| job->flags = vc4->rasterizer->tile_raster_order_flags; |
| |
| vc4->job = job; |
| |
| return job; |
| } |
| |
| static void |
| vc4_submit_setup_rcl_surface(struct vc4_job *job, |
| struct drm_vc4_submit_rcl_surface *submit_surf, |
| struct pipe_surface *psurf, |
| bool is_depth, bool is_write) |
| { |
| struct vc4_surface *surf = vc4_surface(psurf); |
| |
| if (!surf) |
| return; |
| |
| struct vc4_resource *rsc = vc4_resource(psurf->texture); |
| submit_surf->hindex = vc4_gem_hindex(job, rsc->bo); |
| submit_surf->offset = surf->offset; |
| |
| if (psurf->texture->nr_samples <= 1) { |
| if (is_depth) { |
| submit_surf->bits = |
| VC4_SET_FIELD(VC4_LOADSTORE_TILE_BUFFER_ZS, |
| VC4_LOADSTORE_TILE_BUFFER_BUFFER); |
| |
| } else { |
| submit_surf->bits = |
| VC4_SET_FIELD(VC4_LOADSTORE_TILE_BUFFER_COLOR, |
| VC4_LOADSTORE_TILE_BUFFER_BUFFER) | |
| VC4_SET_FIELD(vc4_rt_format_is_565(psurf->format) ? |
| VC4_LOADSTORE_TILE_BUFFER_BGR565 : |
| VC4_LOADSTORE_TILE_BUFFER_RGBA8888, |
| VC4_LOADSTORE_TILE_BUFFER_FORMAT); |
| } |
| submit_surf->bits |= |
| VC4_SET_FIELD(surf->tiling, |
| VC4_LOADSTORE_TILE_BUFFER_TILING); |
| } else { |
| assert(!is_write); |
| submit_surf->flags |= VC4_SUBMIT_RCL_SURFACE_READ_IS_FULL_RES; |
| } |
| |
| if (is_write) |
| rsc->writes++; |
| } |
| |
| static void |
| vc4_submit_setup_rcl_render_config_surface(struct vc4_job *job, |
| struct drm_vc4_submit_rcl_surface *submit_surf, |
| struct pipe_surface *psurf) |
| { |
| struct vc4_surface *surf = vc4_surface(psurf); |
| |
| if (!surf) |
| return; |
| |
| struct vc4_resource *rsc = vc4_resource(psurf->texture); |
| submit_surf->hindex = vc4_gem_hindex(job, rsc->bo); |
| submit_surf->offset = surf->offset; |
| |
| if (psurf->texture->nr_samples <= 1) { |
| submit_surf->bits = |
| VC4_SET_FIELD(vc4_rt_format_is_565(surf->base.format) ? |
| VC4_RENDER_CONFIG_FORMAT_BGR565 : |
| VC4_RENDER_CONFIG_FORMAT_RGBA8888, |
| VC4_RENDER_CONFIG_FORMAT) | |
| VC4_SET_FIELD(surf->tiling, |
| VC4_RENDER_CONFIG_MEMORY_FORMAT); |
| } |
| |
| rsc->writes++; |
| } |
| |
| static void |
| vc4_submit_setup_rcl_msaa_surface(struct vc4_job *job, |
| struct drm_vc4_submit_rcl_surface *submit_surf, |
| struct pipe_surface *psurf) |
| { |
| struct vc4_surface *surf = vc4_surface(psurf); |
| |
| if (!surf) |
| return; |
| |
| struct vc4_resource *rsc = vc4_resource(psurf->texture); |
| submit_surf->hindex = vc4_gem_hindex(job, rsc->bo); |
| submit_surf->offset = surf->offset; |
| submit_surf->bits = 0; |
| rsc->writes++; |
| } |
| |
| /** |
| * Submits the job to the kernel and then reinitializes it. |
| */ |
| void |
| vc4_job_submit(struct vc4_context *vc4, struct vc4_job *job) |
| { |
| if (!job->needs_flush) |
| goto done; |
| |
| /* The RCL setup would choke if the draw bounds cause no drawing, so |
| * just drop the drawing if that's the case. |
| */ |
| if (job->draw_max_x <= job->draw_min_x || |
| job->draw_max_y <= job->draw_min_y) { |
| goto done; |
| } |
| |
| if (VC4_DBG(CL)) { |
| fprintf(stderr, "BCL:\n"); |
| vc4_dump_cl(job->bcl.base, cl_offset(&job->bcl), false); |
| } |
| |
| if (cl_offset(&job->bcl) > 0) { |
| /* Increment the semaphore indicating that binning is done and |
| * unblocking the render thread. Note that this doesn't act |
| * until the FLUSH completes. |
| */ |
| cl_ensure_space(&job->bcl, 8); |
| cl_emit(&job->bcl, INCREMENT_SEMAPHORE, incr); |
| /* The FLUSH caps all of our bin lists with a |
| * VC4_PACKET_RETURN. |
| */ |
| cl_emit(&job->bcl, FLUSH, flush); |
| } |
| struct drm_vc4_submit_cl submit = { |
| .color_read.hindex = ~0, |
| .zs_read.hindex = ~0, |
| .color_write.hindex = ~0, |
| .msaa_color_write.hindex = ~0, |
| .zs_write.hindex = ~0, |
| .msaa_zs_write.hindex = ~0, |
| }; |
| |
| cl_ensure_space(&job->bo_handles, 6 * sizeof(uint32_t)); |
| cl_ensure_space(&job->bo_pointers, 6 * sizeof(struct vc4_bo *)); |
| |
| if (job->resolve & PIPE_CLEAR_COLOR) { |
| if (!(job->cleared & PIPE_CLEAR_COLOR)) { |
| vc4_submit_setup_rcl_surface(job, &submit.color_read, |
| job->color_read, |
| false, false); |
| } |
| vc4_submit_setup_rcl_render_config_surface(job, |
| &submit.color_write, |
| job->color_write); |
| vc4_submit_setup_rcl_msaa_surface(job, |
| &submit.msaa_color_write, |
| job->msaa_color_write); |
| } |
| if (job->resolve & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL)) { |
| if (!(job->cleared & (PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL))) { |
| vc4_submit_setup_rcl_surface(job, &submit.zs_read, |
| job->zs_read, true, false); |
| } |
| vc4_submit_setup_rcl_surface(job, &submit.zs_write, |
| job->zs_write, true, true); |
| vc4_submit_setup_rcl_msaa_surface(job, &submit.msaa_zs_write, |
| job->msaa_zs_write); |
| } |
| |
| if (job->msaa) { |
| /* This bit controls how many pixels the general |
| * (i.e. subsampled) loads/stores are iterating over |
| * (multisample loads replicate out to the other samples). |
| */ |
| submit.color_write.bits |= VC4_RENDER_CONFIG_MS_MODE_4X; |
| /* Controls whether color_write's |
| * VC4_PACKET_STORE_MS_TILE_BUFFER does 4x decimation |
| */ |
| submit.color_write.bits |= VC4_RENDER_CONFIG_DECIMATE_MODE_4X; |
| } |
| |
| submit.bo_handles = (uintptr_t)job->bo_handles.base; |
| submit.bo_handle_count = cl_offset(&job->bo_handles) / 4; |
| submit.bin_cl = (uintptr_t)job->bcl.base; |
| submit.bin_cl_size = cl_offset(&job->bcl); |
| submit.shader_rec = (uintptr_t)job->shader_rec.base; |
| submit.shader_rec_size = cl_offset(&job->shader_rec); |
| submit.shader_rec_count = job->shader_rec_count; |
| submit.uniforms = (uintptr_t)job->uniforms.base; |
| submit.uniforms_size = cl_offset(&job->uniforms); |
| if (job->perfmon) |
| submit.perfmonid = job->perfmon->id; |
| |
| assert(job->draw_min_x != ~0 && job->draw_min_y != ~0); |
| submit.min_x_tile = job->draw_min_x / job->tile_width; |
| submit.min_y_tile = job->draw_min_y / job->tile_height; |
| submit.max_x_tile = (job->draw_max_x - 1) / job->tile_width; |
| submit.max_y_tile = (job->draw_max_y - 1) / job->tile_height; |
| submit.width = job->draw_width; |
| submit.height = job->draw_height; |
| if (job->cleared) { |
| submit.flags |= VC4_SUBMIT_CL_USE_CLEAR_COLOR; |
| submit.clear_color[0] = job->clear_color[0]; |
| submit.clear_color[1] = job->clear_color[1]; |
| submit.clear_z = job->clear_depth; |
| submit.clear_s = job->clear_stencil; |
| } |
| submit.flags |= job->flags; |
| |
| if (vc4->screen->has_syncobj) { |
| submit.out_sync = vc4->job_syncobj; |
| |
| if (vc4->in_fence_fd >= 0) { |
| /* This replaces the fence in the syncobj. */ |
| drmSyncobjImportSyncFile(vc4->fd, vc4->in_syncobj, |
| vc4->in_fence_fd); |
| submit.in_sync = vc4->in_syncobj; |
| close(vc4->in_fence_fd); |
| vc4->in_fence_fd = -1; |
| } |
| } |
| |
| if (!VC4_DBG(NORAST)) { |
| int ret; |
| |
| ret = vc4_ioctl(vc4->fd, DRM_IOCTL_VC4_SUBMIT_CL, &submit); |
| static bool warned = false; |
| if (ret && !warned) { |
| fprintf(stderr, "Draw call returned %s. " |
| "Expect corruption.\n", strerror(errno)); |
| warned = true; |
| } else if (!ret) { |
| vc4->last_emit_seqno = submit.seqno; |
| if (job->perfmon) |
| job->perfmon->last_seqno = submit.seqno; |
| } |
| } |
| |
| if (vc4->last_emit_seqno - vc4->screen->finished_seqno > 5) { |
| if (!vc4_wait_seqno(vc4->screen, |
| vc4->last_emit_seqno - 5, |
| PIPE_TIMEOUT_INFINITE, |
| "job throttling")) { |
| fprintf(stderr, "Job throttling failed\n"); |
| } |
| } |
| |
| if (VC4_DBG(ALWAYS_SYNC)) { |
| if (!vc4_wait_seqno(vc4->screen, vc4->last_emit_seqno, |
| PIPE_TIMEOUT_INFINITE, "sync")) { |
| fprintf(stderr, "Wait failed.\n"); |
| abort(); |
| } |
| } |
| |
| done: |
| vc4_job_free(vc4, job); |
| } |
| |
| static bool |
| vc4_job_compare(const void *a, const void *b) |
| { |
| return memcmp(a, b, sizeof(struct vc4_job_key)) == 0; |
| } |
| |
| static uint32_t |
| vc4_job_hash(const void *key) |
| { |
| return _mesa_hash_data(key, sizeof(struct vc4_job_key)); |
| } |
| |
| int |
| vc4_job_init(struct vc4_context *vc4) |
| { |
| vc4->jobs = _mesa_hash_table_create(vc4, |
| vc4_job_hash, |
| vc4_job_compare); |
| vc4->write_jobs = _mesa_hash_table_create(vc4, |
| _mesa_hash_pointer, |
| _mesa_key_pointer_equal); |
| |
| if (vc4->screen->has_syncobj) { |
| /* Create the syncobj as signaled since with no job executed |
| * there is nothing to wait on. |
| */ |
| int ret = drmSyncobjCreate(vc4->fd, |
| DRM_SYNCOBJ_CREATE_SIGNALED, |
| &vc4->job_syncobj); |
| if (ret) { |
| /* If the screen indicated syncobj support, we should |
| * be able to create a signaled syncobj. |
| * At this point it is too late to pretend the screen |
| * has no syncobj support. |
| */ |
| return ret; |
| } |
| } |
| |
| return 0; |
| } |
| |
