| /* |
| * Copyright © 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. |
| */ |
| |
| /** @file v3d_job.c |
| * |
| * Functions for submitting V3D render jobs to the kernel. |
| */ |
| |
| #include <xf86drm.h> |
| #include "v3d_context.h" |
| /* The OQ/semaphore packets are the same across V3D versions. */ |
| #define V3D_VERSION 33 |
| #include "broadcom/cle/v3dx_pack.h" |
| #include "broadcom/common/v3d_macros.h" |
| #include "util/hash_table.h" |
| #include "util/ralloc.h" |
| #include "util/set.h" |
| #include "broadcom/clif/clif_dump.h" |
| |
| void |
| v3d_job_free(struct v3d_context *v3d, struct v3d_job *job) |
| { |
| set_foreach(job->bos, entry) { |
| struct v3d_bo *bo = (struct v3d_bo *)entry->key; |
| v3d_bo_unreference(&bo); |
| } |
| |
| _mesa_hash_table_remove_key(v3d->jobs, &job->key); |
| |
| if (job->write_prscs) { |
| set_foreach(job->write_prscs, entry) { |
| const struct pipe_resource *prsc = entry->key; |
| |
| _mesa_hash_table_remove_key(v3d->write_jobs, prsc); |
| } |
| } |
| |
| for (int i = 0; i < job->nr_cbufs; i++) { |
| if (job->cbufs[i]) { |
| _mesa_hash_table_remove_key(v3d->write_jobs, |
| job->cbufs[i]->texture); |
| pipe_surface_reference(&job->cbufs[i], NULL); |
| } |
| } |
| if (job->zsbuf) { |
| struct v3d_resource *rsc = v3d_resource(job->zsbuf->texture); |
| if (rsc->separate_stencil) |
| _mesa_hash_table_remove_key(v3d->write_jobs, |
| &rsc->separate_stencil->base); |
| |
| _mesa_hash_table_remove_key(v3d->write_jobs, |
| job->zsbuf->texture); |
| pipe_surface_reference(&job->zsbuf, NULL); |
| } |
| if (job->bbuf) |
| pipe_surface_reference(&job->bbuf, NULL); |
| |
| if (v3d->job == job) |
| v3d->job = NULL; |
| |
| v3d_destroy_cl(&job->bcl); |
| v3d_destroy_cl(&job->rcl); |
| v3d_destroy_cl(&job->indirect); |
| v3d_bo_unreference(&job->tile_alloc); |
| v3d_bo_unreference(&job->tile_state); |
| |
| ralloc_free(job); |
| } |
| |
| struct v3d_job * |
| v3d_job_create(struct v3d_context *v3d) |
| { |
| struct v3d_job *job = rzalloc(v3d, struct v3d_job); |
| |
| job->v3d = v3d; |
| |
| v3d_init_cl(job, &job->bcl); |
| v3d_init_cl(job, &job->rcl); |
| v3d_init_cl(job, &job->indirect); |
| |
| job->draw_min_x = ~0; |
| job->draw_min_y = ~0; |
| job->draw_max_x = 0; |
| job->draw_max_y = 0; |
| |
| job->bos = _mesa_set_create(job, |
| _mesa_hash_pointer, |
| _mesa_key_pointer_equal); |
| return job; |
| } |
| |
| void |
| v3d_job_add_bo(struct v3d_job *job, struct v3d_bo *bo) |
| { |
| if (!bo) |
| return; |
| |
| if (_mesa_set_search(job->bos, bo)) |
| return; |
| |
| v3d_bo_reference(bo); |
| _mesa_set_add(job->bos, bo); |
| job->referenced_size += bo->size; |
| |
| uint32_t *bo_handles = (void *)(uintptr_t)job->submit.bo_handles; |
| |
| if (job->submit.bo_handle_count >= job->bo_handles_size) { |
| job->bo_handles_size = MAX2(4, job->bo_handles_size * 2); |
| bo_handles = reralloc(job, bo_handles, |
| uint32_t, job->bo_handles_size); |
| job->submit.bo_handles = (uintptr_t)(void *)bo_handles; |
| } |
| bo_handles[job->submit.bo_handle_count++] = bo->handle; |
| } |
| |
| void |
| v3d_job_add_write_resource(struct v3d_job *job, struct pipe_resource *prsc) |
| { |
| struct v3d_context *v3d = job->v3d; |
| |
| if (!job->write_prscs) { |
| job->write_prscs = _mesa_set_create(job, |
| _mesa_hash_pointer, |
| _mesa_key_pointer_equal); |
| } |
| |
| _mesa_set_add(job->write_prscs, prsc); |
| _mesa_hash_table_insert(v3d->write_jobs, prsc, job); |
| } |
| |
| void |
| v3d_flush_jobs_using_bo(struct v3d_context *v3d, struct v3d_bo *bo) |
| { |
| hash_table_foreach(v3d->jobs, entry) { |
| struct v3d_job *job = entry->data; |
| |
| if (_mesa_set_search(job->bos, bo)) |
| v3d_job_submit(v3d, job); |
| } |
| } |
| |
| void |
| v3d_job_add_tf_write_resource(struct v3d_job *job, struct pipe_resource *prsc) |
| { |
| v3d_job_add_write_resource(job, prsc); |
| |
| if (!job->tf_write_prscs) |
| job->tf_write_prscs = _mesa_pointer_set_create(job); |
| |
| _mesa_set_add(job->tf_write_prscs, prsc); |
| } |
| |
| static bool |
| v3d_job_writes_resource_from_tf(struct v3d_job *job, |
| struct pipe_resource *prsc) |
| { |
| if (!job->tf_enabled) |
| return false; |
| |
| if (!job->tf_write_prscs) |
| return false; |
| |
| return _mesa_set_search(job->tf_write_prscs, prsc) != NULL; |
| } |
| |
| void |
| v3d_flush_jobs_writing_resource(struct v3d_context *v3d, |
| struct pipe_resource *prsc, |
| enum v3d_flush_cond flush_cond, |
| bool is_compute_pipeline) |
| { |
| struct hash_entry *entry = _mesa_hash_table_search(v3d->write_jobs, |
| prsc); |
| struct v3d_resource *rsc = v3d_resource(prsc); |
| |
| /* We need to sync if graphics pipeline reads a resource written |
| * by the compute pipeline. The same would be needed for the case of |
| * graphics-compute dependency but nowadays all compute jobs |
| * are serialized with the previous submitted job. |
| */ |
| if (!is_compute_pipeline && rsc->bo != NULL && rsc->compute_written) { |
| v3d->sync_on_last_compute_job = true; |
| rsc->compute_written = false; |
| } |
| |
| if (!entry) |
| return; |
| |
| struct v3d_job *job = entry->data; |
| |
| bool needs_flush; |
| switch (flush_cond) { |
| case V3D_FLUSH_ALWAYS: |
| needs_flush = true; |
| break; |
| case V3D_FLUSH_NOT_CURRENT_JOB: |
| needs_flush = !v3d->job || v3d->job != job; |
| break; |
| case V3D_FLUSH_DEFAULT: |
| default: |
| /* For writes from TF in the same job we use the "Wait for TF" |
| * feature provided by the hardware so we don't want to flush. |
| * The exception to this is when the caller is about to map the |
| * resource since in that case we don't have a 'Wait for TF' |
| * command the in command stream. In this scenario the caller |
| * is expected to set 'always_flush' to True. |
| */ |
| needs_flush = !v3d_job_writes_resource_from_tf(job, prsc); |
| } |
| |
| if (needs_flush) |
| v3d_job_submit(v3d, job); |
| } |
| |
| void |
| v3d_flush_jobs_reading_resource(struct v3d_context *v3d, |
| struct pipe_resource *prsc, |
| enum v3d_flush_cond flush_cond, |
| bool is_compute_pipeline) |
| { |
| struct v3d_resource *rsc = v3d_resource(prsc); |
| |
| /* We only need to force the flush on TF writes, which is the only |
| * case where we might skip the flush to use the 'Wait for TF' |
| * command. Here we are flushing for a read, which means that the |
| * caller intends to write to the resource, so we don't care if |
| * there was a previous TF write to it. |
| */ |
| v3d_flush_jobs_writing_resource(v3d, prsc, flush_cond, |
| is_compute_pipeline); |
| |
| hash_table_foreach(v3d->jobs, entry) { |
| struct v3d_job *job = entry->data; |
| |
| if (!_mesa_set_search(job->bos, rsc->bo)) |
| continue; |
| |
| bool needs_flush; |
| switch (flush_cond) { |
| case V3D_FLUSH_NOT_CURRENT_JOB: |
| needs_flush = !v3d->job || v3d->job != job; |
| break; |
| case V3D_FLUSH_ALWAYS: |
| case V3D_FLUSH_DEFAULT: |
| default: |
| needs_flush = true; |
| } |
| |
| if (needs_flush) |
| v3d_job_submit(v3d, job); |
| |
| /* Reminder: v3d->jobs is safe to keep iterating even |
| * after deletion of an entry. |
| */ |
| continue; |
| } |
| } |
| |
| /** |
| * Returns a v3d_job struture for tracking V3D rendering to a particular FBO. |
| * |
| * If we've already started rendering to this FBO, then return the 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 v3d_job * |
| v3d_get_job(struct v3d_context *v3d, |
| uint32_t nr_cbufs, |
| struct pipe_surface **cbufs, |
| struct pipe_surface *zsbuf, |
| struct pipe_surface *bbuf) |
| { |
| /* Return the existing job for this FBO if we have one */ |
| struct v3d_job_key local_key = { |
| .cbufs = { |
| cbufs[0], |
| cbufs[1], |
| cbufs[2], |
| cbufs[3], |
| }, |
| .zsbuf = zsbuf, |
| .bbuf = bbuf, |
| }; |
| struct hash_entry *entry = _mesa_hash_table_search(v3d->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. |
| */ |
| struct v3d_job *job = v3d_job_create(v3d); |
| job->nr_cbufs = nr_cbufs; |
| |
| for (int i = 0; i < job->nr_cbufs; i++) { |
| if (cbufs[i]) { |
| v3d_flush_jobs_reading_resource(v3d, cbufs[i]->texture, |
| V3D_FLUSH_DEFAULT, |
| false); |
| pipe_surface_reference(&job->cbufs[i], cbufs[i]); |
| |
| if (cbufs[i]->texture->nr_samples > 1) |
| job->msaa = true; |
| } |
| } |
| if (zsbuf) { |
| v3d_flush_jobs_reading_resource(v3d, zsbuf->texture, |
| V3D_FLUSH_DEFAULT, |
| false); |
| pipe_surface_reference(&job->zsbuf, zsbuf); |
| if (zsbuf->texture->nr_samples > 1) |
| job->msaa = true; |
| } |
| if (bbuf) { |
| pipe_surface_reference(&job->bbuf, bbuf); |
| if (bbuf->texture->nr_samples > 1) |
| job->msaa = true; |
| } |
| |
| for (int i = 0; i < job->nr_cbufs; i++) { |
| if (cbufs[i]) |
| _mesa_hash_table_insert(v3d->write_jobs, |
| cbufs[i]->texture, job); |
| } |
| if (zsbuf) { |
| _mesa_hash_table_insert(v3d->write_jobs, zsbuf->texture, job); |
| |
| struct v3d_resource *rsc = v3d_resource(zsbuf->texture); |
| if (rsc->separate_stencil) { |
| v3d_flush_jobs_reading_resource(v3d, |
| &rsc->separate_stencil->base, |
| V3D_FLUSH_DEFAULT, |
| false); |
| _mesa_hash_table_insert(v3d->write_jobs, |
| &rsc->separate_stencil->base, |
| job); |
| } |
| } |
| |
| job->double_buffer = V3D_DBG(DOUBLE_BUFFER) && !job->msaa; |
| |
| memcpy(&job->key, &local_key, sizeof(local_key)); |
| _mesa_hash_table_insert(v3d->jobs, &job->key, job); |
| |
| return job; |
| } |
| |
| struct v3d_job * |
| v3d_get_job_for_fbo(struct v3d_context *v3d) |
| { |
| if (v3d->job) |
| return v3d->job; |
| |
| uint32_t nr_cbufs = v3d->framebuffer.nr_cbufs; |
| struct pipe_surface **cbufs = v3d->framebuffer.cbufs; |
| struct pipe_surface *zsbuf = v3d->framebuffer.zsbuf; |
| struct v3d_job *job = v3d_get_job(v3d, nr_cbufs, cbufs, zsbuf, NULL); |
| |
| if (v3d->framebuffer.samples >= 1) { |
| job->msaa = true; |
| job->double_buffer = false; |
| } |
| |
| v3d_get_tile_buffer_size(job->msaa, job->double_buffer, |
| job->nr_cbufs, job->cbufs, job->bbuf, |
| &job->tile_width, &job->tile_height, |
| &job->internal_bpp); |
| |
| /* The dirty flags are tracking what's been updated while v3d->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. |
| */ |
| v3d->dirty = ~0; |
| |
| /* If we're binding to uninitialized buffers, no need to load their |
| * contents before drawing. |
| */ |
| for (int i = 0; i < nr_cbufs; i++) { |
| if (cbufs[i]) { |
| struct v3d_resource *rsc = v3d_resource(cbufs[i]->texture); |
| if (!rsc->writes) |
| job->clear |= PIPE_CLEAR_COLOR0 << i; |
| } |
| } |
| |
| if (zsbuf) { |
| struct v3d_resource *rsc = v3d_resource(zsbuf->texture); |
| if (!rsc->writes) |
| job->clear |= PIPE_CLEAR_DEPTH; |
| |
| if (rsc->separate_stencil) |
| rsc = rsc->separate_stencil; |
| |
| if (!rsc->writes) |
| job->clear |= PIPE_CLEAR_STENCIL; |
| } |
| |
| job->draw_tiles_x = DIV_ROUND_UP(v3d->framebuffer.width, |
| job->tile_width); |
| job->draw_tiles_y = DIV_ROUND_UP(v3d->framebuffer.height, |
| job->tile_height); |
| |
| v3d->job = job; |
| |
| return job; |
| } |
| |
| static void |
| v3d_clif_dump(struct v3d_context *v3d, struct v3d_job *job) |
| { |
| if (!(V3D_DBG(CL) || |
| V3D_DBG(CL_NO_BIN) || |
| V3D_DBG(CLIF))) |
| return; |
| |
| struct clif_dump *clif = clif_dump_init(&v3d->screen->devinfo, |
| stderr, |
| V3D_DBG(CL) || |
| V3D_DBG(CL_NO_BIN), |
| V3D_DBG(CL_NO_BIN)); |
| |
| set_foreach(job->bos, entry) { |
| struct v3d_bo *bo = (void *)entry->key; |
| char *name = ralloc_asprintf(NULL, "%s_0x%x", |
| bo->name, bo->offset); |
| |
| v3d_bo_map(bo); |
| clif_dump_add_bo(clif, name, bo->offset, bo->size, bo->map); |
| |
| ralloc_free(name); |
| } |
| |
| clif_dump(clif, &job->submit); |
| |
| clif_dump_destroy(clif); |
| } |
| |
| static void |
| v3d_read_and_accumulate_primitive_counters(struct v3d_context *v3d) |
| { |
| assert(v3d->prim_counts); |
| |
| perf_debug("stalling on TF counts readback\n"); |
| struct v3d_resource *rsc = v3d_resource(v3d->prim_counts); |
| if (v3d_bo_wait(rsc->bo, PIPE_TIMEOUT_INFINITE, "prim-counts")) { |
| uint32_t *map = v3d_bo_map(rsc->bo) + v3d->prim_counts_offset; |
| v3d->tf_prims_generated += map[V3D_PRIM_COUNTS_TF_WRITTEN]; |
| /* When we only have a vertex shader we determine the primitive |
| * count in the CPU so don't update it here again. |
| */ |
| if (v3d->prog.gs) |
| v3d->prims_generated += map[V3D_PRIM_COUNTS_WRITTEN]; |
| } |
| } |
| |
| /** |
| * Submits the job to the kernel and then reinitializes it. |
| */ |
| void |
| v3d_job_submit(struct v3d_context *v3d, struct v3d_job *job) |
| { |
| struct v3d_screen *screen = v3d->screen; |
| |
| if (!job->needs_flush) |
| goto done; |
| |
| /* The GL_PRIMITIVES_GENERATED query is included with |
| * OES_geometry_shader. |
| */ |
| job->needs_primitives_generated = |
| v3d->n_primitives_generated_queries_in_flight > 0 && |
| v3d->prog.gs; |
| |
| if (job->needs_primitives_generated) |
| v3d_ensure_prim_counts_allocated(v3d); |
| |
| if (screen->devinfo.ver >= 41) |
| v3d41_emit_rcl(job); |
| else |
| v3d33_emit_rcl(job); |
| |
| if (cl_offset(&job->bcl) > 0) { |
| if (screen->devinfo.ver >= 41) |
| v3d41_bcl_epilogue(v3d, job); |
| else |
| v3d33_bcl_epilogue(v3d, job); |
| } |
| |
| /* While the RCL will implicitly depend on the last RCL to have |
| * finished, we also need to block on any previous TFU job we may have |
| * dispatched. |
| */ |
| job->submit.in_sync_rcl = v3d->out_sync; |
| |
| /* Update the sync object for the last rendering by our context. */ |
| job->submit.out_sync = v3d->out_sync; |
| |
| job->submit.bcl_end = job->bcl.bo->offset + cl_offset(&job->bcl); |
| job->submit.rcl_end = job->rcl.bo->offset + cl_offset(&job->rcl); |
| |
| if (v3d->active_perfmon) { |
| assert(screen->has_perfmon); |
| job->submit.perfmon_id = v3d->active_perfmon->kperfmon_id; |
| } |
| |
| /* If we are submitting a job with a different perfmon, we need to |
| * ensure the previous one fully finishes before starting this; |
| * otherwise it would wrongly mix counter results. |
| */ |
| if (v3d->active_perfmon != v3d->last_perfmon) { |
| v3d->last_perfmon = v3d->active_perfmon; |
| job->submit.in_sync_bcl = v3d->out_sync; |
| } |
| |
| job->submit.flags = 0; |
| if (job->tmu_dirty_rcl && screen->has_cache_flush) |
| job->submit.flags |= DRM_V3D_SUBMIT_CL_FLUSH_CACHE; |
| |
| /* On V3D 4.1, the tile alloc/state setup moved to register writes |
| * instead of binner packets. |
| */ |
| if (screen->devinfo.ver >= 41) { |
| v3d_job_add_bo(job, job->tile_alloc); |
| job->submit.qma = job->tile_alloc->offset; |
| job->submit.qms = job->tile_alloc->size; |
| |
| v3d_job_add_bo(job, job->tile_state); |
| job->submit.qts = job->tile_state->offset; |
| } |
| |
| v3d_clif_dump(v3d, job); |
| |
| if (!V3D_DBG(NORAST)) { |
| int ret; |
| |
| ret = v3d_ioctl(v3d->fd, DRM_IOCTL_V3D_SUBMIT_CL, &job->submit); |
| static bool warned = false; |
| if (ret && !warned) { |
| fprintf(stderr, "Draw call returned %s. " |
| "Expect corruption.\n", strerror(errno)); |
| warned = true; |
| } else if (!ret) { |
| if (v3d->active_perfmon) |
| v3d->active_perfmon->job_submitted = true; |
| } |
| |
| /* If we are submitting a job in the middle of transform |
| * feedback or there is a primitives generated query with a |
| * geometry shader then we need to read the primitive counts |
| * and accumulate them, otherwise they will be reset at the |
| * start of the next draw when we emit the Tile Binning Mode |
| * Configuration packet. |
| * |
| * If the job doesn't have any TF draw calls, then we know |
| * the primitive count must be zero and we can skip stalling |
| * for this. This also fixes a problem because it seems that |
| * in this scenario the counters are not reset with the Tile |
| * Binning Mode Configuration packet, which would translate |
| * to us reading an obsolete (possibly non-zero) value from |
| * the GPU counters. |
| */ |
| if (job->needs_primitives_generated || |
| (v3d->streamout.num_targets && |
| job->tf_draw_calls_queued > 0)) |
| v3d_read_and_accumulate_primitive_counters(v3d); |
| } |
| |
| done: |
| v3d_job_free(v3d, job); |
| } |
| |
| static bool |
| v3d_job_compare(const void *a, const void *b) |
| { |
| return memcmp(a, b, sizeof(struct v3d_job_key)) == 0; |
| } |
| |
| static uint32_t |
| v3d_job_hash(const void *key) |
| { |
| return _mesa_hash_data(key, sizeof(struct v3d_job_key)); |
| } |
| |
| void |
| v3d_job_init(struct v3d_context *v3d) |
| { |
| v3d->jobs = _mesa_hash_table_create(v3d, |
| v3d_job_hash, |
| v3d_job_compare); |
| v3d->write_jobs = _mesa_hash_table_create(v3d, |
| _mesa_hash_pointer, |
| _mesa_key_pointer_equal); |
| } |
| |
