// SPDX-License-Identifier: GPL-2.0+
/*
* Copyright (C) 2014-2018 Broadcom
* Copyright (C) 2023 Raspberry Pi
*/
#include <drm/drm_syncobj.h>
#include "v3d_drv.h"
#include "v3d_regs.h"
#include "v3d_trace.h"
/* Takes the reservation lock on all the BOs being referenced, so that
* at queue submit time we can update the reservations.
*
* We don't lock the RCL the tile alloc/state BOs, or overflow memory
* (all of which are on exec->unref_list). They're entirely private
* to v3d, so we don't attach dma-buf fences to them.
*/
static int
v3d_lock_bo_reservations(struct v3d_job *job,
struct ww_acquire_ctx *acquire_ctx)
{
int i, ret;
ret = drm_gem_lock_reservations(job->bo, job->bo_count, acquire_ctx);
if (ret)
return ret;
for (i = 0; i < job->bo_count; i++) {
ret = dma_resv_reserve_fences(job->bo[i]->resv, 1);
if (ret)
goto fail;
ret = drm_sched_job_add_implicit_dependencies(&job->base,
job->bo[i], true);
if (ret)
goto fail;
}
return 0;
fail:
drm_gem_unlock_reservations(job->bo, job->bo_count, acquire_ctx);
return ret;
}
/**
* v3d_lookup_bos() - Sets up job->bo[] with the GEM objects
* referenced by the job.
* @dev: DRM device
* @file_priv: DRM file for this fd
* @job: V3D job being set up
* @bo_handles: GEM handles
* @bo_count: Number of GEM handles passed in
*
* The command validator needs to reference BOs by their index within
* the submitted job's BO list. This does the validation of the job's
* BO list and reference counting for the lifetime of the job.
*
* Note that this function doesn't need to unreference the BOs on
* failure, because that will happen at v3d_exec_cleanup() time.
*/
static int
v3d_lookup_bos(struct drm_device *dev,
struct drm_file *file_priv,
struct v3d_job *job,
u64 bo_handles,
u32 bo_count)
{
job->bo_count = bo_count;
if (!job->bo_count) {
/* See comment on bo_index for why we have to check
* this.
*/
DRM_DEBUG("Rendering requires BOs\n");
return -EINVAL;
}
return drm_gem_objects_lookup(file_priv,
(void __user *)(uintptr_t)bo_handles,
job->bo_count, &job->bo);
}
static void
v3d_job_free(struct kref *ref)
{
struct v3d_job *job = container_of(ref, struct v3d_job, refcount);
int i;
if (job->bo) {
for (i = 0; i < job->bo_count; i++)
drm_gem_object_put(job->bo[i]);
kvfree(job->bo);
}
dma_fence_put(job->irq_fence);
dma_fence_put(job->done_fence);
if (job->perfmon)
v3d_perfmon_put(job->perfmon);
kfree(job);
}
static void
v3d_render_job_free(struct kref *ref)
{
struct v3d_render_job *job = container_of(ref, struct v3d_render_job,
base.refcount);
struct v3d_bo *bo, *save;
list_for_each_entry_safe(bo, save, &job->unref_list, unref_head) {
drm_gem_object_put(&bo->base.base);
}
v3d_job_free(ref);
}
void v3d_job_cleanup(struct v3d_job *job)
{
if (!job)
return;
drm_sched_job_cleanup(&job->base);
v3d_job_put(job);
}
void v3d_job_put(struct v3d_job *job)
{
if (!job)
return;
kref_put(&job->refcount, job->free);
}
static int
v3d_job_allocate(void **container, size_t size)
{
*container = kcalloc(1, size, GFP_KERNEL);
if (!*container) {
DRM_ERROR("Cannot allocate memory for V3D job.\n");
return -ENOMEM;
}
return 0;
}
static void
v3d_job_deallocate(void **container)
{
kfree(*container);
*container = NULL;
}
static int
v3d_job_init(struct v3d_dev *v3d, struct drm_file *file_priv,
struct v3d_job *job, void (*free)(struct kref *ref),
u32 in_sync, struct v3d_submit_ext *se, enum v3d_queue queue)
{
struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
bool has_multisync = se && (se->flags & DRM_V3D_EXT_ID_MULTI_SYNC);
int ret, i;
job->v3d = v3d;
job->free = free;
job->file = file_priv;
ret = drm_sched_job_init(&job->base, &v3d_priv->sched_entity[queue],
1, v3d_priv);
if (ret)
return ret;
if (has_multisync) {
if (se->in_sync_count && se->wait_stage == queue) {
struct drm_v3d_sem __user *handle = u64_to_user_ptr(se->in_syncs);
for (i = 0; i < se->in_sync_count; i++) {
struct drm_v3d_sem in;
if (copy_from_user(&in, handle++, sizeof(in))) {
ret = -EFAULT;
DRM_DEBUG("Failed to copy wait dep handle.\n");
goto fail_deps;
}
ret = drm_sched_job_add_syncobj_dependency(&job->base, file_priv, in.handle, 0);
// TODO: Investigate why this was filtered out for the IOCTL.
if (ret && ret != -ENOENT)
goto fail_deps;
}
}
} else {
ret = drm_sched_job_add_syncobj_dependency(&job->base, file_priv, in_sync, 0);
// TODO: Investigate why this was filtered out for the IOCTL.
if (ret && ret != -ENOENT)
goto fail_deps;
}
kref_init(&job->refcount);
return 0;
fail_deps:
drm_sched_job_cleanup(&job->base);
return ret;
}
static void
v3d_push_job(struct v3d_job *job)
{
drm_sched_job_arm(&job->base);
job->done_fence = dma_fence_get(&job->base.s_fence->finished);
/* put by scheduler job completion */
kref_get(&job->refcount);
drm_sched_entity_push_job(&job->base);
}
static void
v3d_attach_fences_and_unlock_reservation(struct drm_file *file_priv,
struct v3d_job *job,
struct ww_acquire_ctx *acquire_ctx,
u32 out_sync,
struct v3d_submit_ext *se,
struct dma_fence *done_fence)
{
struct drm_syncobj *sync_out;
bool has_multisync = se && (se->flags & DRM_V3D_EXT_ID_MULTI_SYNC);
int i;
for (i = 0; i < job->bo_count; i++) {
/* XXX: Use shared fences for read-only objects. */
dma_resv_add_fence(job->bo[i]->resv, job->done_fence,
DMA_RESV_USAGE_WRITE);
}
drm_gem_unlock_reservations(job->bo, job->bo_count, acquire_ctx);
/* Update the return sync object for the job */
/* If it only supports a single signal semaphore*/
if (!has_multisync) {
sync_out = drm_syncobj_find(file_priv, out_sync);
if (sync_out) {
drm_syncobj_replace_fence(sync_out, done_fence);
drm_syncobj_put(sync_out);
}
return;
}
/* If multiple semaphores extension is supported */
if (se->out_sync_count) {
for (i = 0; i < se->out_sync_count; i++) {
drm_syncobj_replace_fence(se->out_syncs[i].syncobj,
done_fence);
drm_syncobj_put(se->out_syncs[i].syncobj);
}
kvfree(se->out_syncs);
}
}
static int
v3d_setup_csd_jobs_and_bos(struct drm_file *file_priv,
struct v3d_dev *v3d,
struct drm_v3d_submit_csd *args,
struct v3d_csd_job **job,
struct v3d_job **clean_job,
struct v3d_submit_ext *se,
struct ww_acquire_ctx *acquire_ctx)
{
int ret;
ret = v3d_job_allocate((void *)job, sizeof(**job));
if (ret)
return ret;
ret = v3d_job_init(v3d, file_priv, &(*job)->base,
v3d_job_free, args->in_sync, se, V3D_CSD);
if (ret) {
v3d_job_deallocate((void *)job);
return ret;
}
ret = v3d_job_allocate((void *)clean_job, sizeof(**clean_job));
if (ret)
return ret;
ret = v3d_job_init(v3d, file_priv, *clean_job,
v3d_job_free, 0, NULL, V3D_CACHE_CLEAN);
if (ret) {
v3d_job_deallocate((void *)clean_job);
return ret;
}
(*job)->args = *args;
ret = v3d_lookup_bos(&v3d->drm, file_priv, *clean_job,
args->bo_handles, args->bo_handle_count);
if (ret)
return ret;
return v3d_lock_bo_reservations(*clean_job, acquire_ctx);
}
static void
v3d_put_multisync_post_deps(struct v3d_submit_ext *se)
{
unsigned int i;
if (!(se && se->out_sync_count))
return;
for (i = 0; i < se->out_sync_count; i++)
drm_syncobj_put(se->out_syncs[i].syncobj);
kvfree(se->out_syncs);
}
static int
v3d_get_multisync_post_deps(struct drm_file *file_priv,
struct v3d_submit_ext *se,
u32 count, u64 handles)
{
struct drm_v3d_sem __user *post_deps;
int i, ret;
if (!count)
return 0;
se->out_syncs = (struct v3d_submit_outsync *)
kvmalloc_array(count,
sizeof(struct v3d_submit_outsync),
GFP_KERNEL);
if (!se->out_syncs)
return -ENOMEM;
post_deps = u64_to_user_ptr(handles);
for (i = 0; i < count; i++) {
struct drm_v3d_sem out;
if (copy_from_user(&out, post_deps++, sizeof(out))) {
ret = -EFAULT;
DRM_DEBUG("Failed to copy post dep handles\n");
goto fail;
}
se->out_syncs[i].syncobj = drm_syncobj_find(file_priv,
out.handle);
if (!se->out_syncs[i].syncobj) {
ret = -EINVAL;
goto fail;
}
}
se->out_sync_count = count;
return 0;
fail:
for (i--; i >= 0; i--)
drm_syncobj_put(se->out_syncs[i].syncobj);
kvfree(se->out_syncs);
return ret;
}
/* Get data for multiple binary semaphores synchronization. Parse syncobj
* to be signaled when job completes (out_sync).
*/
static int
v3d_get_multisync_submit_deps(struct drm_file *file_priv,
struct drm_v3d_extension __user *ext,
struct v3d_submit_ext *se)
{
struct drm_v3d_multi_sync multisync;
int ret;
if (se->in_sync_count || se->out_sync_count) {
DRM_DEBUG("Two multisync extensions were added to the same job.");
return -EINVAL;
}
if (copy_from_user(&multisync, ext, sizeof(multisync)))
return -EFAULT;
if (multisync.pad)
return -EINVAL;
ret = v3d_get_multisync_post_deps(file_priv, se, multisync.out_sync_count,
multisync.out_syncs);
if (ret)
return ret;
se->in_sync_count = multisync.in_sync_count;
se->in_syncs = multisync.in_syncs;
se->flags |= DRM_V3D_EXT_ID_MULTI_SYNC;
se->wait_stage = multisync.wait_stage;
return 0;
}
/* Get data for the indirect CSD job submission. */
static int
v3d_get_cpu_indirect_csd_params(struct drm_file *file_priv,
struct drm_v3d_extension __user *ext,
struct v3d_cpu_job *job)
{
struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
struct v3d_dev *v3d = v3d_priv->v3d;
struct drm_v3d_indirect_csd indirect_csd;
struct v3d_indirect_csd_info *info = &job->indirect_csd;
if (!job) {
DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
return -EINVAL;
}
if (job->job_type) {
DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
return -EINVAL;
}
if (copy_from_user(&indirect_csd, ext, sizeof(indirect_csd)))
return -EFAULT;
if (!v3d_has_csd(v3d)) {
DRM_DEBUG("Attempting CSD submit on non-CSD hardware.\n");
return -EINVAL;
}
job->job_type = V3D_CPU_JOB_TYPE_INDIRECT_CSD;
info->offset = indirect_csd.offset;
info->wg_size = indirect_csd.wg_size;
memcpy(&info->wg_uniform_offsets, &indirect_csd.wg_uniform_offsets,
sizeof(indirect_csd.wg_uniform_offsets));
info->indirect = drm_gem_object_lookup(file_priv, indirect_csd.indirect);
return v3d_setup_csd_jobs_and_bos(file_priv, v3d, &indirect_csd.submit,
&info->job, &info->clean_job,
NULL, &info->acquire_ctx);
}
/* Get data for the query timestamp job submission. */
static int
v3d_get_cpu_timestamp_query_params(struct drm_file *file_priv,
struct drm_v3d_extension __user *ext,
struct v3d_cpu_job *job)
{
u32 __user *offsets, *syncs;
struct drm_v3d_timestamp_query timestamp;
struct v3d_timestamp_query_info *query_info = &job->timestamp_query;
unsigned int i;
int err;
if (!job) {
DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
return -EINVAL;
}
if (job->job_type) {
DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
return -EINVAL;
}
if (copy_from_user(×tamp, ext, sizeof(timestamp)))
return -EFAULT;
if (timestamp.pad)
return -EINVAL;
job->job_type = V3D_CPU_JOB_TYPE_TIMESTAMP_QUERY;
query_info->queries = kvmalloc_array(timestamp.count,
sizeof(struct v3d_timestamp_query),
GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
offsets = u64_to_user_ptr(timestamp.offsets);
syncs = u64_to_user_ptr(timestamp.syncs);
for (i = 0; i < timestamp.count; i++) {
u32 offset, sync;
if (get_user(offset, offsets++)) {
err = -EFAULT;
goto error;
}
query_info->queries[i].offset = offset;
if (get_user(sync, syncs++)) {
err = -EFAULT;
goto error;
}
query_info->queries[i].syncobj = drm_syncobj_find(file_priv,
sync);
if (!query_info->queries[i].syncobj) {
err = -ENOENT;
goto error;
}
}
query_info->count = timestamp.count;
return 0;
error:
v3d_timestamp_query_info_free(&job->timestamp_query, i);
return err;
}
static int
v3d_get_cpu_reset_timestamp_params(struct drm_file *file_priv,
struct drm_v3d_extension __user *ext,
struct v3d_cpu_job *job)
{
u32 __user *syncs;
struct drm_v3d_reset_timestamp_query reset;
struct v3d_timestamp_query_info *query_info = &job->timestamp_query;
unsigned int i;
int err;
if (!job) {
DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
return -EINVAL;
}
if (job->job_type) {
DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
return -EINVAL;
}
if (copy_from_user(&reset, ext, sizeof(reset)))
return -EFAULT;
job->job_type = V3D_CPU_JOB_TYPE_RESET_TIMESTAMP_QUERY;
query_info->queries = kvmalloc_array(reset.count,
sizeof(struct v3d_timestamp_query),
GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
syncs = u64_to_user_ptr(reset.syncs);
for (i = 0; i < reset.count; i++) {
u32 sync;
query_info->queries[i].offset = reset.offset + 8 * i;
if (get_user(sync, syncs++)) {
err = -EFAULT;
goto error;
}
query_info->queries[i].syncobj = drm_syncobj_find(file_priv,
sync);
if (!query_info->queries[i].syncobj) {
err = -ENOENT;
goto error;
}
}
query_info->count = reset.count;
return 0;
error:
v3d_timestamp_query_info_free(&job->timestamp_query, i);
return err;
}
/* Get data for the copy timestamp query results job submission. */
static int
v3d_get_cpu_copy_query_results_params(struct drm_file *file_priv,
struct drm_v3d_extension __user *ext,
struct v3d_cpu_job *job)
{
u32 __user *offsets, *syncs;
struct drm_v3d_copy_timestamp_query copy;
struct v3d_timestamp_query_info *query_info = &job->timestamp_query;
unsigned int i;
int err;
if (!job) {
DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
return -EINVAL;
}
if (job->job_type) {
DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
return -EINVAL;
}
if (copy_from_user(©, ext, sizeof(copy)))
return -EFAULT;
if (copy.pad)
return -EINVAL;
job->job_type = V3D_CPU_JOB_TYPE_COPY_TIMESTAMP_QUERY;
query_info->queries = kvmalloc_array(copy.count,
sizeof(struct v3d_timestamp_query),
GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
offsets = u64_to_user_ptr(copy.offsets);
syncs = u64_to_user_ptr(copy.syncs);
for (i = 0; i < copy.count; i++) {
u32 offset, sync;
if (get_user(offset, offsets++)) {
err = -EFAULT;
goto error;
}
query_info->queries[i].offset = offset;
if (get_user(sync, syncs++)) {
err = -EFAULT;
goto error;
}
query_info->queries[i].syncobj = drm_syncobj_find(file_priv,
sync);
if (!query_info->queries[i].syncobj) {
err = -ENOENT;
goto error;
}
}
query_info->count = copy.count;
job->copy.do_64bit = copy.do_64bit;
job->copy.do_partial = copy.do_partial;
job->copy.availability_bit = copy.availability_bit;
job->copy.offset = copy.offset;
job->copy.stride = copy.stride;
return 0;
error:
v3d_timestamp_query_info_free(&job->timestamp_query, i);
return err;
}
static int
v3d_copy_query_info(struct v3d_performance_query_info *query_info,
unsigned int count,
unsigned int nperfmons,
u32 __user *syncs,
u64 __user *kperfmon_ids,
struct drm_file *file_priv)
{
unsigned int i, j;
int err;
for (i = 0; i < count; i++) {
struct v3d_performance_query *query = &query_info->queries[i];
u32 __user *ids_pointer;
u32 sync, id;
u64 ids;
if (get_user(sync, syncs++)) {
err = -EFAULT;
goto error;
}
if (get_user(ids, kperfmon_ids++)) {
err = -EFAULT;
goto error;
}
query->kperfmon_ids =
kvmalloc_array(nperfmons,
sizeof(struct v3d_performance_query *),
GFP_KERNEL);
if (!query->kperfmon_ids) {
err = -ENOMEM;
goto error;
}
ids_pointer = u64_to_user_ptr(ids);
for (j = 0; j < nperfmons; j++) {
if (get_user(id, ids_pointer++)) {
kvfree(query->kperfmon_ids);
err = -EFAULT;
goto error;
}
query->kperfmon_ids[j] = id;
}
query->syncobj = drm_syncobj_find(file_priv, sync);
if (!query->syncobj) {
kvfree(query->kperfmon_ids);
err = -ENOENT;
goto error;
}
}
return 0;
error:
v3d_performance_query_info_free(query_info, i);
return err;
}
static int
v3d_get_cpu_reset_performance_params(struct drm_file *file_priv,
struct drm_v3d_extension __user *ext,
struct v3d_cpu_job *job)
{
struct v3d_performance_query_info *query_info = &job->performance_query;
struct drm_v3d_reset_performance_query reset;
int err;
if (!job) {
DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
return -EINVAL;
}
if (job->job_type) {
DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
return -EINVAL;
}
if (copy_from_user(&reset, ext, sizeof(reset)))
return -EFAULT;
job->job_type = V3D_CPU_JOB_TYPE_RESET_PERFORMANCE_QUERY;
query_info->queries =
kvmalloc_array(reset.count,
sizeof(struct v3d_performance_query),
GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
err = v3d_copy_query_info(query_info,
reset.count,
reset.nperfmons,
u64_to_user_ptr(reset.syncs),
u64_to_user_ptr(reset.kperfmon_ids),
file_priv);
if (err)
return err;
query_info->count = reset.count;
query_info->nperfmons = reset.nperfmons;
return 0;
}
static int
v3d_get_cpu_copy_performance_query_params(struct drm_file *file_priv,
struct drm_v3d_extension __user *ext,
struct v3d_cpu_job *job)
{
struct v3d_performance_query_info *query_info = &job->performance_query;
struct drm_v3d_copy_performance_query copy;
int err;
if (!job) {
DRM_DEBUG("CPU job extension was attached to a GPU job.\n");
return -EINVAL;
}
if (job->job_type) {
DRM_DEBUG("Two CPU job extensions were added to the same CPU job.\n");
return -EINVAL;
}
if (copy_from_user(©, ext, sizeof(copy)))
return -EFAULT;
if (copy.pad)
return -EINVAL;
job->job_type = V3D_CPU_JOB_TYPE_COPY_PERFORMANCE_QUERY;
query_info->queries =
kvmalloc_array(copy.count,
sizeof(struct v3d_performance_query),
GFP_KERNEL);
if (!query_info->queries)
return -ENOMEM;
err = v3d_copy_query_info(query_info,
copy.count,
copy.nperfmons,
u64_to_user_ptr(copy.syncs),
u64_to_user_ptr(copy.kperfmon_ids),
file_priv);
if (err)
return err;
query_info->count = copy.count;
query_info->nperfmons = copy.nperfmons;
query_info->ncounters = copy.ncounters;
job->copy.do_64bit = copy.do_64bit;
job->copy.do_partial = copy.do_partial;
job->copy.availability_bit = copy.availability_bit;
job->copy.offset = copy.offset;
job->copy.stride = copy.stride;
return 0;
}
/* Whenever userspace sets ioctl extensions, v3d_get_extensions parses data
* according to the extension id (name).
*/
static int
v3d_get_extensions(struct drm_file *file_priv,
u64 ext_handles,
struct v3d_submit_ext *se,
struct v3d_cpu_job *job)
{
struct drm_v3d_extension __user *user_ext;
int ret;
user_ext = u64_to_user_ptr(ext_handles);
while (user_ext) {
struct drm_v3d_extension ext;
if (copy_from_user(&ext, user_ext, sizeof(ext))) {
DRM_DEBUG("Failed to copy submit extension\n");
return -EFAULT;
}
switch (ext.id) {
case DRM_V3D_EXT_ID_MULTI_SYNC:
ret = v3d_get_multisync_submit_deps(file_priv, user_ext, se);
break;
case DRM_V3D_EXT_ID_CPU_INDIRECT_CSD:
ret = v3d_get_cpu_indirect_csd_params(file_priv, user_ext, job);
break;
case DRM_V3D_EXT_ID_CPU_TIMESTAMP_QUERY:
ret = v3d_get_cpu_timestamp_query_params(file_priv, user_ext, job);
break;
case DRM_V3D_EXT_ID_CPU_RESET_TIMESTAMP_QUERY:
ret = v3d_get_cpu_reset_timestamp_params(file_priv, user_ext, job);
break;
case DRM_V3D_EXT_ID_CPU_COPY_TIMESTAMP_QUERY:
ret = v3d_get_cpu_copy_query_results_params(file_priv, user_ext, job);
break;
case DRM_V3D_EXT_ID_CPU_RESET_PERFORMANCE_QUERY:
ret = v3d_get_cpu_reset_performance_params(file_priv, user_ext, job);
break;
case DRM_V3D_EXT_ID_CPU_COPY_PERFORMANCE_QUERY:
ret = v3d_get_cpu_copy_performance_query_params(file_priv, user_ext, job);
break;
default:
DRM_DEBUG_DRIVER("Unknown extension id: %d\n", ext.id);
return -EINVAL;
}
if (ret)
return ret;
user_ext = u64_to_user_ptr(ext.next);
}
return 0;
}
/**
* v3d_submit_cl_ioctl() - Submits a job (frame) to the V3D.
* @dev: DRM device
* @data: ioctl argument
* @file_priv: DRM file for this fd
*
* This is the main entrypoint for userspace to submit a 3D frame to
* the GPU. Userspace provides the binner command list (if
* applicable), and the kernel sets up the render command list to draw
* to the framebuffer described in the ioctl, using the command lists
* that the 3D engine's binner will produce.
*/
int
v3d_submit_cl_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct v3d_dev *v3d = to_v3d_dev(dev);
struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
struct drm_v3d_submit_cl *args = data;
struct v3d_submit_ext se = {0};
struct v3d_bin_job *bin = NULL;
struct v3d_render_job *render = NULL;
struct v3d_job *clean_job = NULL;
struct v3d_job *last_job;
struct ww_acquire_ctx acquire_ctx;
int ret = 0;
trace_v3d_submit_cl_ioctl(&v3d->drm, args->rcl_start, args->rcl_end);
if (args->pad)
return -EINVAL;
if (args->flags &&
args->flags & ~(DRM_V3D_SUBMIT_CL_FLUSH_CACHE |
DRM_V3D_SUBMIT_EXTENSION)) {
DRM_INFO("invalid flags: %d\n", args->flags);
return -EINVAL;
}
if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL);
if (ret) {
DRM_DEBUG("Failed to get extensions.\n");
return ret;
}
}
ret = v3d_job_allocate((void *)&render, sizeof(*render));
if (ret)
return ret;
ret = v3d_job_init(v3d, file_priv, &render->base,
v3d_render_job_free, args->in_sync_rcl, &se, V3D_RENDER);
if (ret) {
v3d_job_deallocate((void *)&render);
goto fail;
}
render->start = args->rcl_start;
render->end = args->rcl_end;
INIT_LIST_HEAD(&render->unref_list);
if (args->bcl_start != args->bcl_end) {
ret = v3d_job_allocate((void *)&bin, sizeof(*bin));
if (ret)
goto fail;
ret = v3d_job_init(v3d, file_priv, &bin->base,
v3d_job_free, args->in_sync_bcl, &se, V3D_BIN);
if (ret) {
v3d_job_deallocate((void *)&bin);
goto fail;
}
bin->start = args->bcl_start;
bin->end = args->bcl_end;
bin->qma = args->qma;
bin->qms = args->qms;
bin->qts = args->qts;
bin->render = render;
}
if (args->flags & DRM_V3D_SUBMIT_CL_FLUSH_CACHE) {
ret = v3d_job_allocate((void *)&clean_job, sizeof(*clean_job));
if (ret)
goto fail;
ret = v3d_job_init(v3d, file_priv, clean_job,
v3d_job_free, 0, NULL, V3D_CACHE_CLEAN);
if (ret) {
v3d_job_deallocate((void *)&clean_job);
goto fail;
}
last_job = clean_job;
} else {
last_job = &render->base;
}
ret = v3d_lookup_bos(dev, file_priv, last_job,
args->bo_handles, args->bo_handle_count);
if (ret)
goto fail;
ret = v3d_lock_bo_reservations(last_job, &acquire_ctx);
if (ret)
goto fail;
if (args->perfmon_id) {
render->base.perfmon = v3d_perfmon_find(v3d_priv,
args->perfmon_id);
if (!render->base.perfmon) {
ret = -ENOENT;
goto fail_perfmon;
}
}
mutex_lock(&v3d->sched_lock);
if (bin) {
bin->base.perfmon = render->base.perfmon;
v3d_perfmon_get(bin->base.perfmon);
v3d_push_job(&bin->base);
ret = drm_sched_job_add_dependency(&render->base.base,
dma_fence_get(bin->base.done_fence));
if (ret)
goto fail_unreserve;
}
v3d_push_job(&render->base);
if (clean_job) {
struct dma_fence *render_fence =
dma_fence_get(render->base.done_fence);
ret = drm_sched_job_add_dependency(&clean_job->base,
render_fence);
if (ret)
goto fail_unreserve;
clean_job->perfmon = render->base.perfmon;
v3d_perfmon_get(clean_job->perfmon);
v3d_push_job(clean_job);
}
mutex_unlock(&v3d->sched_lock);
v3d_attach_fences_and_unlock_reservation(file_priv,
last_job,
&acquire_ctx,
args->out_sync,
&se,
last_job->done_fence);
v3d_job_put(&bin->base);
v3d_job_put(&render->base);
v3d_job_put(clean_job);
return 0;
fail_unreserve:
mutex_unlock(&v3d->sched_lock);
fail_perfmon:
drm_gem_unlock_reservations(last_job->bo,
last_job->bo_count, &acquire_ctx);
fail:
v3d_job_cleanup((void *)bin);
v3d_job_cleanup((void *)render);
v3d_job_cleanup(clean_job);
v3d_put_multisync_post_deps(&se);
return ret;
}
/**
* v3d_submit_tfu_ioctl() - Submits a TFU (texture formatting) job to the V3D.
* @dev: DRM device
* @data: ioctl argument
* @file_priv: DRM file for this fd
*
* Userspace provides the register setup for the TFU, which we don't
* need to validate since the TFU is behind the MMU.
*/
int
v3d_submit_tfu_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct v3d_dev *v3d = to_v3d_dev(dev);
struct drm_v3d_submit_tfu *args = data;
struct v3d_submit_ext se = {0};
struct v3d_tfu_job *job = NULL;
struct ww_acquire_ctx acquire_ctx;
int ret = 0;
trace_v3d_submit_tfu_ioctl(&v3d->drm, args->iia);
if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) {
DRM_DEBUG("invalid flags: %d\n", args->flags);
return -EINVAL;
}
if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL);
if (ret) {
DRM_DEBUG("Failed to get extensions.\n");
return ret;
}
}
ret = v3d_job_allocate((void *)&job, sizeof(*job));
if (ret)
return ret;
ret = v3d_job_init(v3d, file_priv, &job->base,
v3d_job_free, args->in_sync, &se, V3D_TFU);
if (ret) {
v3d_job_deallocate((void *)&job);
goto fail;
}
job->base.bo = kcalloc(ARRAY_SIZE(args->bo_handles),
sizeof(*job->base.bo), GFP_KERNEL);
if (!job->base.bo) {
ret = -ENOMEM;
goto fail;
}
job->args = *args;
for (job->base.bo_count = 0;
job->base.bo_count < ARRAY_SIZE(args->bo_handles);
job->base.bo_count++) {
struct drm_gem_object *bo;
if (!args->bo_handles[job->base.bo_count])
break;
bo = drm_gem_object_lookup(file_priv, args->bo_handles[job->base.bo_count]);
if (!bo) {
DRM_DEBUG("Failed to look up GEM BO %d: %d\n",
job->base.bo_count,
args->bo_handles[job->base.bo_count]);
ret = -ENOENT;
goto fail;
}
job->base.bo[job->base.bo_count] = bo;
}
ret = v3d_lock_bo_reservations(&job->base, &acquire_ctx);
if (ret)
goto fail;
mutex_lock(&v3d->sched_lock);
v3d_push_job(&job->base);
mutex_unlock(&v3d->sched_lock);
v3d_attach_fences_and_unlock_reservation(file_priv,
&job->base, &acquire_ctx,
args->out_sync,
&se,
job->base.done_fence);
v3d_job_put(&job->base);
return 0;
fail:
v3d_job_cleanup((void *)job);
v3d_put_multisync_post_deps(&se);
return ret;
}
/**
* v3d_submit_csd_ioctl() - Submits a CSD (compute shader) job to the V3D.
* @dev: DRM device
* @data: ioctl argument
* @file_priv: DRM file for this fd
*
* Userspace provides the register setup for the CSD, which we don't
* need to validate since the CSD is behind the MMU.
*/
int
v3d_submit_csd_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct v3d_dev *v3d = to_v3d_dev(dev);
struct v3d_file_priv *v3d_priv = file_priv->driver_priv;
struct drm_v3d_submit_csd *args = data;
struct v3d_submit_ext se = {0};
struct v3d_csd_job *job = NULL;
struct v3d_job *clean_job = NULL;
struct ww_acquire_ctx acquire_ctx;
int ret;
trace_v3d_submit_csd_ioctl(&v3d->drm, args->cfg[5], args->cfg[6]);
if (args->pad)
return -EINVAL;
if (!v3d_has_csd(v3d)) {
DRM_DEBUG("Attempting CSD submit on non-CSD hardware\n");
return -EINVAL;
}
if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) {
DRM_INFO("invalid flags: %d\n", args->flags);
return -EINVAL;
}
if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
ret = v3d_get_extensions(file_priv, args->extensions, &se, NULL);
if (ret) {
DRM_DEBUG("Failed to get extensions.\n");
return ret;
}
}
ret = v3d_setup_csd_jobs_and_bos(file_priv, v3d, args,
&job, &clean_job, &se,
&acquire_ctx);
if (ret)
goto fail;
if (args->perfmon_id) {
job->base.perfmon = v3d_perfmon_find(v3d_priv,
args->perfmon_id);
if (!job->base.perfmon) {
ret = -ENOENT;
goto fail_perfmon;
}
}
mutex_lock(&v3d->sched_lock);
v3d_push_job(&job->base);
ret = drm_sched_job_add_dependency(&clean_job->base,
dma_fence_get(job->base.done_fence));
if (ret)
goto fail_unreserve;
v3d_push_job(clean_job);
mutex_unlock(&v3d->sched_lock);
v3d_attach_fences_and_unlock_reservation(file_priv,
clean_job,
&acquire_ctx,
args->out_sync,
&se,
clean_job->done_fence);
v3d_job_put(&job->base);
v3d_job_put(clean_job);
return 0;
fail_unreserve:
mutex_unlock(&v3d->sched_lock);
fail_perfmon:
drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count,
&acquire_ctx);
fail:
v3d_job_cleanup((void *)job);
v3d_job_cleanup(clean_job);
v3d_put_multisync_post_deps(&se);
return ret;
}
static const unsigned int cpu_job_bo_handle_count[] = {
[V3D_CPU_JOB_TYPE_INDIRECT_CSD] = 1,
[V3D_CPU_JOB_TYPE_TIMESTAMP_QUERY] = 1,
[V3D_CPU_JOB_TYPE_RESET_TIMESTAMP_QUERY] = 1,
[V3D_CPU_JOB_TYPE_COPY_TIMESTAMP_QUERY] = 2,
[V3D_CPU_JOB_TYPE_RESET_PERFORMANCE_QUERY] = 0,
[V3D_CPU_JOB_TYPE_COPY_PERFORMANCE_QUERY] = 1,
};
/**
* v3d_submit_cpu_ioctl() - Submits a CPU job to the V3D.
* @dev: DRM device
* @data: ioctl argument
* @file_priv: DRM file for this fd
*
* Userspace specifies the CPU job type and data required to perform its
* operations through the drm_v3d_extension struct.
*/
int
v3d_submit_cpu_ioctl(struct drm_device *dev, void *data,
struct drm_file *file_priv)
{
struct v3d_dev *v3d = to_v3d_dev(dev);
struct drm_v3d_submit_cpu *args = data;
struct v3d_submit_ext se = {0};
struct v3d_submit_ext *out_se = NULL;
struct v3d_cpu_job *cpu_job = NULL;
struct v3d_csd_job *csd_job = NULL;
struct v3d_job *clean_job = NULL;
struct ww_acquire_ctx acquire_ctx;
int ret;
if (args->flags && !(args->flags & DRM_V3D_SUBMIT_EXTENSION)) {
DRM_INFO("Invalid flags: %d\n", args->flags);
return -EINVAL;
}
ret = v3d_job_allocate((void *)&cpu_job, sizeof(*cpu_job));
if (ret)
return ret;
if (args->flags & DRM_V3D_SUBMIT_EXTENSION) {
ret = v3d_get_extensions(file_priv, args->extensions, &se, cpu_job);
if (ret) {
DRM_DEBUG("Failed to get extensions.\n");
goto fail;
}
}
/* Every CPU job must have a CPU job user extension */
if (!cpu_job->job_type) {
DRM_DEBUG("CPU job must have a CPU job user extension.\n");
ret = -EINVAL;
goto fail;
}
if (args->bo_handle_count != cpu_job_bo_handle_count[cpu_job->job_type]) {
DRM_DEBUG("This CPU job was not submitted with the proper number of BOs.\n");
ret = -EINVAL;
goto fail;
}
trace_v3d_submit_cpu_ioctl(&v3d->drm, cpu_job->job_type);
ret = v3d_job_init(v3d, file_priv, &cpu_job->base,
v3d_job_free, 0, &se, V3D_CPU);
if (ret) {
v3d_job_deallocate((void *)&cpu_job);
goto fail;
}
clean_job = cpu_job->indirect_csd.clean_job;
csd_job = cpu_job->indirect_csd.job;
if (args->bo_handle_count) {
ret = v3d_lookup_bos(dev, file_priv, &cpu_job->base,
args->bo_handles, args->bo_handle_count);
if (ret)
goto fail;
ret = v3d_lock_bo_reservations(&cpu_job->base, &acquire_ctx);
if (ret)
goto fail;
}
mutex_lock(&v3d->sched_lock);
v3d_push_job(&cpu_job->base);
switch (cpu_job->job_type) {
case V3D_CPU_JOB_TYPE_INDIRECT_CSD:
ret = drm_sched_job_add_dependency(&csd_job->base.base,
dma_fence_get(cpu_job->base.done_fence));
if (ret)
goto fail_unreserve;
v3d_push_job(&csd_job->base);
ret = drm_sched_job_add_dependency(&clean_job->base,
dma_fence_get(csd_job->base.done_fence));
if (ret)
goto fail_unreserve;
v3d_push_job(clean_job);
break;
default:
break;
}
mutex_unlock(&v3d->sched_lock);
out_se = (cpu_job->job_type == V3D_CPU_JOB_TYPE_INDIRECT_CSD) ? NULL : &se;
v3d_attach_fences_and_unlock_reservation(file_priv,
&cpu_job->base,
&acquire_ctx, 0,
out_se, cpu_job->base.done_fence);
switch (cpu_job->job_type) {
case V3D_CPU_JOB_TYPE_INDIRECT_CSD:
v3d_attach_fences_and_unlock_reservation(file_priv,
clean_job,
&cpu_job->indirect_csd.acquire_ctx,
0, &se, clean_job->done_fence);
break;
default:
break;
}
v3d_job_put(&cpu_job->base);
v3d_job_put(&csd_job->base);
v3d_job_put(clean_job);
return 0;
fail_unreserve:
mutex_unlock(&v3d->sched_lock);
drm_gem_unlock_reservations(cpu_job->base.bo, cpu_job->base.bo_count,
&acquire_ctx);
drm_gem_unlock_reservations(clean_job->bo, clean_job->bo_count,
&cpu_job->indirect_csd.acquire_ctx);
fail:
v3d_job_cleanup((void *)cpu_job);
v3d_job_cleanup((void *)csd_job);
v3d_job_cleanup(clean_job);
v3d_put_multisync_post_deps(&se);
kvfree(cpu_job->timestamp_query.queries);
kvfree(cpu_job->performance_query.queries);
return ret;
}
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