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Diffstat (limited to 'src/gallium/drivers/vc5/vc5_job.c')
-rw-r--r--src/gallium/drivers/vc5/vc5_job.c429
1 files changed, 429 insertions, 0 deletions
diff --git a/src/gallium/drivers/vc5/vc5_job.c b/src/gallium/drivers/vc5/vc5_job.c
new file mode 100644
index 00000000000..57cf96725b9
--- /dev/null
+++ b/src/gallium/drivers/vc5/vc5_job.c
@@ -0,0 +1,429 @@
+/*
+ * 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 vc5_job.c
+ *
+ * Functions for submitting VC5 render jobs to the kernel.
+ */
+
+#include <xf86drm.h>
+#include "vc5_context.h"
+#include "util/hash_table.h"
+#include "util/ralloc.h"
+#include "util/set.h"
+#include "broadcom/clif/clif_dump.h"
+#include "broadcom/cle/v3d_packet_v33_pack.h"
+
+static void
+remove_from_ht(struct hash_table *ht, void *key)
+{
+ struct hash_entry *entry = _mesa_hash_table_search(ht, key);
+ _mesa_hash_table_remove(ht, entry);
+}
+
+static void
+vc5_job_free(struct vc5_context *vc5, struct vc5_job *job)
+{
+ struct set_entry *entry;
+
+ set_foreach(job->bos, entry) {
+ struct vc5_bo *bo = (struct vc5_bo *)entry->key;
+ vc5_bo_unreference(&bo);
+ }
+
+ remove_from_ht(vc5->jobs, &job->key);
+
+ for (int i = 0; i < VC5_MAX_DRAW_BUFFERS; i++) {
+ if (job->cbufs[i]) {
+ remove_from_ht(vc5->write_jobs, job->cbufs[i]->texture);
+ pipe_surface_reference(&job->cbufs[i], NULL);
+ }
+ }
+ if (job->zsbuf) {
+ remove_from_ht(vc5->write_jobs, job->zsbuf->texture);
+ pipe_surface_reference(&job->zsbuf, NULL);
+ }
+
+ if (vc5->job == job)
+ vc5->job = NULL;
+
+ vc5_destroy_cl(&job->bcl);
+ vc5_destroy_cl(&job->rcl);
+ vc5_destroy_cl(&job->indirect);
+ vc5_bo_unreference(&job->tile_alloc);
+
+ ralloc_free(job);
+}
+
+static struct vc5_job *
+vc5_job_create(struct vc5_context *vc5)
+{
+ struct vc5_job *job = rzalloc(vc5, struct vc5_job);
+
+ job->vc5 = vc5;
+
+ vc5_init_cl(job, &job->bcl);
+ vc5_init_cl(job, &job->rcl);
+ vc5_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
+vc5_job_add_bo(struct vc5_job *job, struct vc5_bo *bo)
+{
+ if (!bo)
+ return;
+
+ if (_mesa_set_search(job->bos, bo))
+ return;
+
+ vc5_bo_reference(bo);
+ _mesa_set_add(job->bos, bo);
+
+ 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
+vc5_flush_jobs_writing_resource(struct vc5_context *vc5,
+ struct pipe_resource *prsc)
+{
+ struct hash_entry *entry = _mesa_hash_table_search(vc5->write_jobs,
+ prsc);
+ if (entry) {
+ struct vc5_job *job = entry->data;
+ vc5_job_submit(vc5, job);
+ }
+}
+
+void
+vc5_flush_jobs_reading_resource(struct vc5_context *vc5,
+ struct pipe_resource *prsc)
+{
+ struct vc5_resource *rsc = vc5_resource(prsc);
+
+ vc5_flush_jobs_writing_resource(vc5, prsc);
+
+ struct hash_entry *entry;
+ hash_table_foreach(vc5->jobs, entry) {
+ struct vc5_job *job = entry->data;
+
+ if (_mesa_set_search(job->bos, rsc->bo)) {
+ vc5_job_submit(vc5, job);
+ /* Reminder: vc5->jobs is safe to keep iterating even
+ * after deletion of an entry.
+ */
+ continue;
+ }
+ }
+}
+
+static void
+vc5_job_set_tile_buffer_size(struct vc5_job *job)
+{
+ static const uint8_t tile_sizes[] = {
+ 64, 64,
+ 64, 32,
+ 32, 32,
+ 32, 16,
+ 16, 16,
+ };
+ int tile_size_index = 0;
+ if (job->msaa)
+ tile_size_index += 2;
+
+ if (job->cbufs[3])
+ tile_size_index += 2;
+ else if (job->cbufs[2])
+ tile_size_index++;
+
+ int max_bpp = RENDER_TARGET_MAXIMUM_32BPP;
+ for (int i = 0; i < VC5_MAX_DRAW_BUFFERS; i++) {
+ if (job->cbufs[i]) {
+ struct vc5_surface *surf = vc5_surface(job->cbufs[i]);
+ max_bpp = MAX2(max_bpp, surf->internal_bpp);
+ }
+ }
+ job->internal_bpp = max_bpp;
+ STATIC_ASSERT(RENDER_TARGET_MAXIMUM_32BPP == 0);
+ tile_size_index += max_bpp;
+
+ assert(tile_size_index < ARRAY_SIZE(tile_sizes));
+ job->tile_width = tile_sizes[tile_size_index * 2 + 0];
+ job->tile_height = tile_sizes[tile_size_index * 2 + 1];
+}
+
+/**
+ * Returns a vc5_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 vc5_job *
+vc5_get_job(struct vc5_context *vc5,
+ struct pipe_surface **cbufs, struct pipe_surface *zsbuf)
+{
+ /* Return the existing job for this FBO if we have one */
+ struct vc5_job_key local_key = {
+ .cbufs = {
+ cbufs[0],
+ cbufs[1],
+ cbufs[2],
+ cbufs[3],
+ },
+ .zsbuf = zsbuf,
+ };
+ struct hash_entry *entry = _mesa_hash_table_search(vc5->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 vc5_job *job = vc5_job_create(vc5);
+
+ for (int i = 0; i < VC5_MAX_DRAW_BUFFERS; i++) {
+ if (cbufs[i]) {
+ vc5_flush_jobs_reading_resource(vc5, cbufs[i]->texture);
+ pipe_surface_reference(&job->cbufs[i], cbufs[i]);
+
+ if (cbufs[i]->texture->nr_samples > 1)
+ job->msaa = true;
+ }
+ }
+ if (zsbuf) {
+ vc5_flush_jobs_reading_resource(vc5, zsbuf->texture);
+ pipe_surface_reference(&job->zsbuf, zsbuf);
+ if (zsbuf->texture->nr_samples > 1)
+ job->msaa = true;
+ }
+
+ vc5_job_set_tile_buffer_size(job);
+
+ for (int i = 0; i < VC5_MAX_DRAW_BUFFERS; i++) {
+ if (cbufs[i])
+ _mesa_hash_table_insert(vc5->write_jobs,
+ cbufs[i]->texture, job);
+ }
+ if (zsbuf)
+ _mesa_hash_table_insert(vc5->write_jobs, zsbuf->texture, job);
+
+ memcpy(&job->key, &local_key, sizeof(local_key));
+ _mesa_hash_table_insert(vc5->jobs, &job->key, job);
+
+ return job;
+}
+
+struct vc5_job *
+vc5_get_job_for_fbo(struct vc5_context *vc5)
+{
+ if (vc5->job)
+ return vc5->job;
+
+ struct pipe_surface **cbufs = vc5->framebuffer.cbufs;
+ struct pipe_surface *zsbuf = vc5->framebuffer.zsbuf;
+ struct vc5_job *job = vc5_get_job(vc5, cbufs, zsbuf);
+
+ /* The dirty flags are tracking what's been updated while vc5->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.
+ */
+ vc5->dirty = ~0;
+
+ /* If we're binding to uninitialized buffers, no need to load their
+ * contents before drawing.
+ */
+ for (int i = 0; i < 4; i++) {
+ if (cbufs[i]) {
+ struct vc5_resource *rsc = vc5_resource(cbufs[i]->texture);
+ if (!rsc->writes)
+ job->cleared |= PIPE_CLEAR_COLOR0 << i;
+ }
+ }
+
+ if (zsbuf) {
+ struct vc5_resource *rsc = vc5_resource(zsbuf->texture);
+ if (!rsc->writes)
+ job->cleared |= PIPE_CLEAR_DEPTH | PIPE_CLEAR_STENCIL;
+ }
+
+ job->draw_tiles_x = DIV_ROUND_UP(vc5->framebuffer.width,
+ job->tile_width);
+ job->draw_tiles_y = DIV_ROUND_UP(vc5->framebuffer.height,
+ job->tile_height);
+
+ vc5->job = job;
+
+ return job;
+}
+
+static bool
+vc5_clif_dump_lookup(void *data, uint32_t addr, void **vaddr)
+{
+ struct vc5_job *job = data;
+ struct set_entry *entry;
+
+ set_foreach(job->bos, entry) {
+ struct vc5_bo *bo = (void *)entry->key;
+
+ if (addr >= bo->offset &&
+ addr < bo->offset + bo->size) {
+ vc5_bo_map(bo);
+ *vaddr = bo->map + addr - bo->offset;
+ return true;
+ }
+ }
+
+ return false;
+}
+
+static void
+vc5_clif_dump(struct vc5_context *vc5, struct vc5_job *job)
+{
+ if (!(V3D_DEBUG & V3D_DEBUG_CL))
+ return;
+
+ struct clif_dump *clif = clif_dump_init(&vc5->screen->devinfo,
+ stderr, vc5_clif_dump_lookup,
+ job);
+
+ fprintf(stderr, "BCL: 0x%08x..0x%08x\n",
+ job->submit.bcl_start, job->submit.bcl_end);
+
+ clif_dump_add_cl(clif, job->submit.bcl_start);
+
+ fprintf(stderr, "RCL: 0x%08x..0x%08x\n",
+ job->submit.rcl_start, job->submit.rcl_end);
+ clif_dump_add_cl(clif, job->submit.rcl_start);
+}
+
+/**
+ * Submits the job to the kernel and then reinitializes it.
+ */
+void
+vc5_job_submit(struct vc5_context *vc5, struct vc5_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;
+ }
+
+ vc5_emit_rcl(job);
+
+ if (cl_offset(&job->bcl) > 0) {
+ vc5_cl_ensure_space_with_branch(&job->bcl, 2);
+
+ /* Increment the semaphore indicating that binning is done and
+ * unblocking the render thread. Note that this doesn't act
+ * until the FLUSH completes.
+ */
+ cl_emit(&job->bcl, INCREMENT_SEMAPHORE, incr);
+
+ /* The FLUSH caps all of our bin lists with a
+ * VC5_PACKET_RETURN.
+ */
+ cl_emit(&job->bcl, FLUSH, flush);
+ }
+
+ job->submit.bcl_end = job->bcl.bo->offset + cl_offset(&job->bcl);
+ job->submit.rcl_end = job->rcl.bo->offset + cl_offset(&job->rcl);
+
+ vc5_clif_dump(vc5, job);
+
+ if (!(V3D_DEBUG & V3D_DEBUG_NORAST)) {
+ int ret;
+
+#ifndef USE_VC5_SIMULATOR
+ ret = drmIoctl(vc5->fd, DRM_IOCTL_VC5_SUBMIT_CL, &job->submit);
+#else
+ ret = vc5_simulator_flush(vc5, &job->submit, job);
+#endif
+ static bool warned = false;
+ if (ret && !warned) {
+ fprintf(stderr, "Draw call returned %s. "
+ "Expect corruption.\n", strerror(errno));
+ warned = true;
+ }
+ }
+
+ if (vc5->last_emit_seqno - vc5->screen->finished_seqno > 5) {
+ if (!vc5_wait_seqno(vc5->screen,
+ vc5->last_emit_seqno - 5,
+ PIPE_TIMEOUT_INFINITE,
+ "job throttling")) {
+ fprintf(stderr, "Job throttling failed\n");
+ }
+ }
+
+done:
+ vc5_job_free(vc5, job);
+}
+
+static bool
+vc5_job_compare(const void *a, const void *b)
+{
+ return memcmp(a, b, sizeof(struct vc5_job_key)) == 0;
+}
+
+static uint32_t
+vc5_job_hash(const void *key)
+{
+ return _mesa_hash_data(key, sizeof(struct vc5_job_key));
+}
+
+void
+vc5_job_init(struct vc5_context *vc5)
+{
+ vc5->jobs = _mesa_hash_table_create(vc5,
+ vc5_job_hash,
+ vc5_job_compare);
+ vc5->write_jobs = _mesa_hash_table_create(vc5,
+ _mesa_hash_pointer,
+ _mesa_key_pointer_equal);
+}
+
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