depends on ARM64
depends on DRM
depends on PM
+ select DRM_EXEC
select DRM_GEM_SHMEM_HELPER
select DRM_SCHED
select DRM_GPUVM
pvr_fw_trace.o \
pvr_gem.o \
pvr_hwrt.o \
+ pvr_job.o \
pvr_mmu.o \
pvr_power.o \
+ pvr_queue.o \
pvr_stream.o \
pvr_stream_defs.o \
+ pvr_sync.o \
pvr_vm.o \
pvr_vm_mips.o
#include "pvr_device.h"
#include "pvr_drv.h"
#include "pvr_gem.h"
+#include "pvr_job.h"
#include "pvr_power.h"
#include "pvr_rogue_fwif.h"
#include "pvr_rogue_fwif_common.h"
#include "pvr_rogue_fwif_resetframework.h"
+#include "pvr_stream.h"
#include "pvr_stream_defs.h"
#include "pvr_vm.h"
memcpy(cpu_ptr, ctx->data, ctx->data_size);
}
+/**
+ * pvr_context_destroy_queues() - Destroy all queues attached to a context.
+ * @ctx: Context to destroy queues on.
+ *
+ * Should be called when the last reference to a context object is dropped.
+ * It releases all resources attached to the queues bound to this context.
+ */
+static void pvr_context_destroy_queues(struct pvr_context *ctx)
+{
+ switch (ctx->type) {
+ case DRM_PVR_CTX_TYPE_RENDER:
+ pvr_queue_destroy(ctx->queues.fragment);
+ pvr_queue_destroy(ctx->queues.geometry);
+ break;
+ case DRM_PVR_CTX_TYPE_COMPUTE:
+ pvr_queue_destroy(ctx->queues.compute);
+ break;
+ case DRM_PVR_CTX_TYPE_TRANSFER_FRAG:
+ pvr_queue_destroy(ctx->queues.transfer);
+ break;
+ }
+}
+
+/**
+ * pvr_context_create_queues() - Create all queues attached to a context.
+ * @ctx: Context to create queues on.
+ * @args: Context creation arguments passed by userspace.
+ * @fw_ctx_map: CPU mapping of the FW context object.
+ *
+ * Return:
+ * * 0 on success, or
+ * * A negative error code otherwise.
+ */
+static int pvr_context_create_queues(struct pvr_context *ctx,
+ struct drm_pvr_ioctl_create_context_args *args,
+ void *fw_ctx_map)
+{
+ int err;
+
+ switch (ctx->type) {
+ case DRM_PVR_CTX_TYPE_RENDER:
+ ctx->queues.geometry = pvr_queue_create(ctx, DRM_PVR_JOB_TYPE_GEOMETRY,
+ args, fw_ctx_map);
+ if (IS_ERR(ctx->queues.geometry)) {
+ err = PTR_ERR(ctx->queues.geometry);
+ ctx->queues.geometry = NULL;
+ goto err_destroy_queues;
+ }
+
+ ctx->queues.fragment = pvr_queue_create(ctx, DRM_PVR_JOB_TYPE_FRAGMENT,
+ args, fw_ctx_map);
+ if (IS_ERR(ctx->queues.fragment)) {
+ err = PTR_ERR(ctx->queues.fragment);
+ ctx->queues.fragment = NULL;
+ goto err_destroy_queues;
+ }
+ return 0;
+
+ case DRM_PVR_CTX_TYPE_COMPUTE:
+ ctx->queues.compute = pvr_queue_create(ctx, DRM_PVR_JOB_TYPE_COMPUTE,
+ args, fw_ctx_map);
+ if (IS_ERR(ctx->queues.compute)) {
+ err = PTR_ERR(ctx->queues.compute);
+ ctx->queues.compute = NULL;
+ goto err_destroy_queues;
+ }
+ return 0;
+
+ case DRM_PVR_CTX_TYPE_TRANSFER_FRAG:
+ ctx->queues.transfer = pvr_queue_create(ctx, DRM_PVR_JOB_TYPE_TRANSFER_FRAG,
+ args, fw_ctx_map);
+ if (IS_ERR(ctx->queues.transfer)) {
+ err = PTR_ERR(ctx->queues.transfer);
+ ctx->queues.transfer = NULL;
+ goto err_destroy_queues;
+ }
+ return 0;
+ }
+
+ return -EINVAL;
+
+err_destroy_queues:
+ pvr_context_destroy_queues(ctx);
+ return err;
+}
+
+/**
+ * pvr_context_kill_queues() - Kill queues attached to context.
+ * @ctx: Context to kill queues on.
+ *
+ * Killing the queues implies making them unusable for future jobs, while still
+ * letting the currently submitted jobs a chance to finish. Queue resources will
+ * stay around until pvr_context_destroy_queues() is called.
+ */
+static void pvr_context_kill_queues(struct pvr_context *ctx)
+{
+ switch (ctx->type) {
+ case DRM_PVR_CTX_TYPE_RENDER:
+ pvr_queue_kill(ctx->queues.fragment);
+ pvr_queue_kill(ctx->queues.geometry);
+ break;
+ case DRM_PVR_CTX_TYPE_COMPUTE:
+ pvr_queue_kill(ctx->queues.compute);
+ break;
+ case DRM_PVR_CTX_TYPE_TRANSFER_FRAG:
+ pvr_queue_kill(ctx->queues.transfer);
+ break;
+ }
+}
+
/**
* pvr_context_create() - Create a context.
* @pvr_file: File to attach the created context to.
goto err_put_vm;
}
- err = init_fw_objs(ctx, args, ctx->data);
+ err = pvr_context_create_queues(ctx, args, ctx->data);
if (err)
goto err_free_ctx_data;
+ err = init_fw_objs(ctx, args, ctx->data);
+ if (err)
+ goto err_destroy_queues;
+
err = pvr_fw_object_create(pvr_dev, ctx_size, PVR_BO_FW_FLAGS_DEVICE_UNCACHED,
ctx_fw_data_init, ctx, &ctx->fw_obj);
if (err)
err_destroy_fw_obj:
pvr_fw_object_destroy(ctx->fw_obj);
+err_destroy_queues:
+ pvr_context_destroy_queues(ctx);
+
err_free_ctx_data:
kfree(ctx->data);
struct pvr_device *pvr_dev = ctx->pvr_dev;
xa_erase(&pvr_dev->ctx_ids, ctx->ctx_id);
+ pvr_context_destroy_queues(ctx);
pvr_fw_object_destroy(ctx->fw_obj);
kfree(ctx->data);
pvr_vm_context_put(ctx->vm_ctx);
if (!ctx)
return -EINVAL;
+ /* Make sure nothing can be queued to the queues after that point. */
+ pvr_context_kill_queues(ctx);
+
/* Release the reference held by the handle set. */
pvr_context_put(ctx);
#include "pvr_cccb.h"
#include "pvr_device.h"
+#include "pvr_queue.h"
/* Forward declaration from pvr_gem.h. */
struct pvr_fw_object;
/** @ctx_id: FW context ID. */
u32 ctx_id;
+
+ /**
+ * @faulty: Set to 1 when the context queues had unfinished job when
+ * a GPU reset happened.
+ *
+ * In that case, the context is in an inconsistent state and can't be
+ * used anymore.
+ */
+ atomic_t faulty;
+
+ /** @queues: Union containing all kind of queues. */
+ union {
+ struct {
+ /** @geometry: Geometry queue. */
+ struct pvr_queue *geometry;
+
+ /** @fragment: Fragment queue. */
+ struct pvr_queue *fragment;
+ };
+
+ /** @compute: Compute queue. */
+ struct pvr_queue *compute;
+
+ /** @compute: Transfer queue. */
+ struct pvr_queue *transfer;
+ } queues;
};
+static __always_inline struct pvr_queue *
+pvr_context_get_queue_for_job(struct pvr_context *ctx, enum drm_pvr_job_type type)
+{
+ switch (type) {
+ case DRM_PVR_JOB_TYPE_GEOMETRY:
+ return ctx->type == DRM_PVR_CTX_TYPE_RENDER ? ctx->queues.geometry : NULL;
+ case DRM_PVR_JOB_TYPE_FRAGMENT:
+ return ctx->type == DRM_PVR_CTX_TYPE_RENDER ? ctx->queues.fragment : NULL;
+ case DRM_PVR_JOB_TYPE_COMPUTE:
+ return ctx->type == DRM_PVR_CTX_TYPE_COMPUTE ? ctx->queues.compute : NULL;
+ case DRM_PVR_JOB_TYPE_TRANSFER_FRAG:
+ return ctx->type == DRM_PVR_CTX_TYPE_TRANSFER_FRAG ? ctx->queues.transfer : NULL;
+ }
+
+ return NULL;
+}
+
/**
* pvr_context_get() - Take additional reference on context.
* @ctx: Context pointer.
#include "pvr_fw.h"
#include "pvr_power.h"
+#include "pvr_queue.h"
#include "pvr_rogue_cr_defs.h"
+#include "pvr_stream.h"
#include "pvr_vm.h"
#include <drm/drm_print.h>
return 0;
}
+/**
+ * pvr_device_process_active_queues() - Process all queue related events.
+ * @pvr_dev: PowerVR device to check
+ *
+ * This is called any time we receive a FW event. It iterates over all
+ * active queues and calls pvr_queue_process() on them.
+ */
+void pvr_device_process_active_queues(struct pvr_device *pvr_dev)
+{
+ struct pvr_queue *queue, *tmp_queue;
+ LIST_HEAD(active_queues);
+
+ mutex_lock(&pvr_dev->queues.lock);
+
+ /* Move all active queues to a temporary list. Queues that remain
+ * active after we're done processing them are re-inserted to
+ * the queues.active list by pvr_queue_process().
+ */
+ list_splice_init(&pvr_dev->queues.active, &active_queues);
+
+ list_for_each_entry_safe(queue, tmp_queue, &active_queues, node)
+ pvr_queue_process(queue);
+
+ mutex_unlock(&pvr_dev->queues.lock);
+}
+
static irqreturn_t pvr_device_irq_thread_handler(int irq, void *data)
{
struct pvr_device *pvr_dev = data;
if (pvr_dev->fw_dev.booted) {
pvr_fwccb_process(pvr_dev);
pvr_kccb_wake_up_waiters(pvr_dev);
+ pvr_device_process_active_queues(pvr_dev);
}
pm_runtime_mark_last_busy(from_pvr_device(pvr_dev)->dev);
else
return -EINVAL;
+ pvr_stream_create_musthave_masks(pvr_dev);
+
err = pvr_set_dma_info(pvr_dev);
if (err)
return err;
*/
struct xarray free_list_ids;
+ /**
+ * @job_ids: Array of jobs belonging to this device. Array members
+ * are of type "struct pvr_job *".
+ */
+ struct xarray job_ids;
+
+ /**
+ * @queues: Queue-related fields.
+ */
+ struct {
+ /** @active: Active queue list. */
+ struct list_head active;
+
+ /** @idle: Idle queue list. */
+ struct list_head idle;
+
+ /** @lock: Lock protecting access to the active/idle lists. */
+ struct mutex lock;
+ } queues;
+
struct {
/** @work: Work item for watchdog callback. */
struct delayed_work work;
int pvr_device_init(struct pvr_device *pvr_dev);
void pvr_device_fini(struct pvr_device *pvr_dev);
+void pvr_device_reset(struct pvr_device *pvr_dev);
bool
pvr_device_has_uapi_quirk(struct pvr_device *pvr_dev, u32 quirk);
#include "pvr_free_list.h"
#include "pvr_gem.h"
#include "pvr_hwrt.h"
+#include "pvr_job.h"
#include "pvr_mmu.h"
#include "pvr_power.h"
#include "pvr_rogue_defs.h"
#include <linux/of_device.h>
#include <linux/of_platform.h>
#include <linux/platform_device.h>
+#include <linux/pm_runtime.h>
+#include <linux/xarray.h>
/**
* DOC: PowerVR (Series 6 and later) and IMG Graphics Driver
return 0;
}
- runtime_info.free_list_min_pages = 0; /* FIXME */
+ runtime_info.free_list_min_pages =
+ pvr_get_free_list_min_pages(pvr_dev);
runtime_info.free_list_max_pages =
ROGUE_PM_MAX_FREELIST_SIZE / ROGUE_PM_PAGE_SIZE;
runtime_info.common_store_alloc_region_size =
pvr_ioctl_submit_jobs(struct drm_device *drm_dev, void *raw_args,
struct drm_file *file)
{
- return -ENOTTY;
+ struct drm_pvr_ioctl_submit_jobs_args *args = raw_args;
+ struct pvr_device *pvr_dev = to_pvr_device(drm_dev);
+ struct pvr_file *pvr_file = to_pvr_file(file);
+ int idx;
+ int err;
+
+ if (!drm_dev_enter(drm_dev, &idx))
+ return -EIO;
+
+ err = pvr_submit_jobs(pvr_dev, pvr_file, args);
+
+ drm_dev_exit(idx);
+
+ return err;
}
int
DEFINE_DRM_GEM_FOPS(pvr_drm_driver_fops);
static struct drm_driver pvr_drm_driver = {
- .driver_features = DRIVER_GEM | DRIVER_GEM_GPUVA | DRIVER_RENDER,
+ .driver_features = DRIVER_GEM | DRIVER_GEM_GPUVA | DRIVER_RENDER |
+ DRIVER_SYNCOBJ | DRIVER_SYNCOBJ_TIMELINE,
.open = pvr_drm_driver_open,
.postclose = pvr_drm_driver_postclose,
.ioctls = pvr_drm_driver_ioctls,
drm_dev = &pvr_dev->base;
platform_set_drvdata(plat_dev, drm_dev);
+
+ init_rwsem(&pvr_dev->reset_sem);
+
pvr_context_device_init(pvr_dev);
+ err = pvr_queue_device_init(pvr_dev);
+ if (err)
+ goto err_context_fini;
+
devm_pm_runtime_enable(&plat_dev->dev);
pm_runtime_mark_last_busy(&plat_dev->dev);
goto err_device_fini;
xa_init_flags(&pvr_dev->free_list_ids, XA_FLAGS_ALLOC1);
+ xa_init_flags(&pvr_dev->job_ids, XA_FLAGS_ALLOC1);
return 0;
err_watchdog_fini:
pvr_watchdog_fini(pvr_dev);
+ pvr_queue_device_fini(pvr_dev);
+
+err_context_fini:
+ pvr_context_device_fini(pvr_dev);
+
return err;
}
struct drm_device *drm_dev = platform_get_drvdata(plat_dev);
struct pvr_device *pvr_dev = to_pvr_device(drm_dev);
+ WARN_ON(!xa_empty(&pvr_dev->job_ids));
WARN_ON(!xa_empty(&pvr_dev->free_list_ids));
+ xa_destroy(&pvr_dev->job_ids);
xa_destroy(&pvr_dev->free_list_ids);
pm_runtime_suspend(drm_dev->dev);
pvr_device_fini(pvr_dev);
drm_dev_unplug(drm_dev);
pvr_watchdog_fini(pvr_dev);
+ pvr_queue_device_fini(pvr_dev);
pvr_context_device_fini(pvr_dev);
return 0;
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#include "pvr_context.h"
+#include "pvr_device.h"
+#include "pvr_drv.h"
+#include "pvr_gem.h"
+#include "pvr_hwrt.h"
+#include "pvr_job.h"
+#include "pvr_mmu.h"
+#include "pvr_power.h"
+#include "pvr_rogue_fwif.h"
+#include "pvr_rogue_fwif_client.h"
+#include "pvr_stream.h"
+#include "pvr_stream_defs.h"
+#include "pvr_sync.h"
+
+#include <drm/drm_exec.h>
+#include <drm/drm_gem.h>
+#include <linux/types.h>
+#include <uapi/drm/pvr_drm.h>
+
+static void pvr_job_release(struct kref *kref)
+{
+ struct pvr_job *job = container_of(kref, struct pvr_job, ref_count);
+
+ xa_erase(&job->pvr_dev->job_ids, job->id);
+
+ pvr_hwrt_data_put(job->hwrt);
+ pvr_context_put(job->ctx);
+
+ WARN_ON(job->paired_job);
+
+ pvr_queue_job_cleanup(job);
+ pvr_job_release_pm_ref(job);
+
+ kfree(job->cmd);
+ kfree(job);
+}
+
+/**
+ * pvr_job_put() - Release reference on job
+ * @job: Target job.
+ */
+void
+pvr_job_put(struct pvr_job *job)
+{
+ if (job)
+ kref_put(&job->ref_count, pvr_job_release);
+}
+
+/**
+ * pvr_job_process_stream() - Build job FW structure from stream
+ * @pvr_dev: Device pointer.
+ * @cmd_defs: Stream definition.
+ * @stream: Pointer to command stream.
+ * @stream_size: Size of command stream, in bytes.
+ * @job: Pointer to job.
+ *
+ * Caller is responsible for freeing the output structure.
+ *
+ * Returns:
+ * * 0 on success,
+ * * -%ENOMEM on out of memory, or
+ * * -%EINVAL on malformed stream.
+ */
+static int
+pvr_job_process_stream(struct pvr_device *pvr_dev, const struct pvr_stream_cmd_defs *cmd_defs,
+ void *stream, u32 stream_size, struct pvr_job *job)
+{
+ int err;
+
+ job->cmd = kzalloc(cmd_defs->dest_size, GFP_KERNEL);
+ if (!job->cmd)
+ return -ENOMEM;
+
+ job->cmd_len = cmd_defs->dest_size;
+
+ err = pvr_stream_process(pvr_dev, cmd_defs, stream, stream_size, job->cmd);
+ if (err)
+ kfree(job->cmd);
+
+ return err;
+}
+
+static int pvr_fw_cmd_init(struct pvr_device *pvr_dev, struct pvr_job *job,
+ const struct pvr_stream_cmd_defs *stream_def,
+ u64 stream_userptr, u32 stream_len)
+{
+ void *stream;
+ int err;
+
+ stream = kzalloc(stream_len, GFP_KERNEL);
+ if (!stream)
+ return -ENOMEM;
+
+ if (copy_from_user(stream, u64_to_user_ptr(stream_userptr), stream_len)) {
+ err = -EFAULT;
+ goto err_free_stream;
+ }
+
+ err = pvr_job_process_stream(pvr_dev, stream_def, stream, stream_len, job);
+
+err_free_stream:
+ kfree(stream);
+
+ return err;
+}
+
+static u32
+convert_geom_flags(u32 in_flags)
+{
+ u32 out_flags = 0;
+
+ if (in_flags & DRM_PVR_SUBMIT_JOB_GEOM_CMD_FIRST)
+ out_flags |= ROGUE_GEOM_FLAGS_FIRSTKICK;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_GEOM_CMD_LAST)
+ out_flags |= ROGUE_GEOM_FLAGS_LASTKICK;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_GEOM_CMD_SINGLE_CORE)
+ out_flags |= ROGUE_GEOM_FLAGS_SINGLE_CORE;
+
+ return out_flags;
+}
+
+static u32
+convert_frag_flags(u32 in_flags)
+{
+ u32 out_flags = 0;
+
+ if (in_flags & DRM_PVR_SUBMIT_JOB_FRAG_CMD_SINGLE_CORE)
+ out_flags |= ROGUE_FRAG_FLAGS_SINGLE_CORE;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_FRAG_CMD_DEPTHBUFFER)
+ out_flags |= ROGUE_FRAG_FLAGS_DEPTHBUFFER;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_FRAG_CMD_STENCILBUFFER)
+ out_flags |= ROGUE_FRAG_FLAGS_STENCILBUFFER;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_FRAG_CMD_PREVENT_CDM_OVERLAP)
+ out_flags |= ROGUE_FRAG_FLAGS_PREVENT_CDM_OVERLAP;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_FRAG_CMD_SCRATCHBUFFER)
+ out_flags |= ROGUE_FRAG_FLAGS_SCRATCHBUFFER;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_FRAG_CMD_GET_VIS_RESULTS)
+ out_flags |= ROGUE_FRAG_FLAGS_GET_VIS_RESULTS;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_FRAG_CMD_DISABLE_PIXELMERGE)
+ out_flags |= ROGUE_FRAG_FLAGS_DISABLE_PIXELMERGE;
+
+ return out_flags;
+}
+
+static int
+pvr_geom_job_fw_cmd_init(struct pvr_job *job,
+ struct drm_pvr_job *args)
+{
+ struct rogue_fwif_cmd_geom *cmd;
+ int err;
+
+ if (args->flags & ~DRM_PVR_SUBMIT_JOB_GEOM_CMD_FLAGS_MASK)
+ return -EINVAL;
+
+ if (job->ctx->type != DRM_PVR_CTX_TYPE_RENDER)
+ return -EINVAL;
+
+ if (!job->hwrt)
+ return -EINVAL;
+
+ job->fw_ccb_cmd_type = ROGUE_FWIF_CCB_CMD_TYPE_GEOM;
+ err = pvr_fw_cmd_init(job->pvr_dev, job, &pvr_cmd_geom_stream,
+ args->cmd_stream, args->cmd_stream_len);
+ if (err)
+ return err;
+
+ cmd = job->cmd;
+ cmd->cmd_shared.cmn.frame_num = 0;
+ cmd->flags = convert_geom_flags(args->flags);
+ pvr_fw_object_get_fw_addr(job->hwrt->fw_obj, &cmd->cmd_shared.hwrt_data_fw_addr);
+ return 0;
+}
+
+static int
+pvr_frag_job_fw_cmd_init(struct pvr_job *job,
+ struct drm_pvr_job *args)
+{
+ struct rogue_fwif_cmd_frag *cmd;
+ int err;
+
+ if (args->flags & ~DRM_PVR_SUBMIT_JOB_FRAG_CMD_FLAGS_MASK)
+ return -EINVAL;
+
+ if (job->ctx->type != DRM_PVR_CTX_TYPE_RENDER)
+ return -EINVAL;
+
+ if (!job->hwrt)
+ return -EINVAL;
+
+ job->fw_ccb_cmd_type = (args->flags & DRM_PVR_SUBMIT_JOB_FRAG_CMD_PARTIAL_RENDER) ?
+ ROGUE_FWIF_CCB_CMD_TYPE_FRAG_PR :
+ ROGUE_FWIF_CCB_CMD_TYPE_FRAG;
+ err = pvr_fw_cmd_init(job->pvr_dev, job, &pvr_cmd_frag_stream,
+ args->cmd_stream, args->cmd_stream_len);
+ if (err)
+ return err;
+
+ cmd = job->cmd;
+ cmd->cmd_shared.cmn.frame_num = 0;
+ cmd->flags = convert_frag_flags(args->flags);
+ pvr_fw_object_get_fw_addr(job->hwrt->fw_obj, &cmd->cmd_shared.hwrt_data_fw_addr);
+ return 0;
+}
+
+static u32
+convert_compute_flags(u32 in_flags)
+{
+ u32 out_flags = 0;
+
+ if (in_flags & DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_PREVENT_ALL_OVERLAP)
+ out_flags |= ROGUE_COMPUTE_FLAG_PREVENT_ALL_OVERLAP;
+ if (in_flags & DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_SINGLE_CORE)
+ out_flags |= ROGUE_COMPUTE_FLAG_SINGLE_CORE;
+
+ return out_flags;
+}
+
+static int
+pvr_compute_job_fw_cmd_init(struct pvr_job *job,
+ struct drm_pvr_job *args)
+{
+ struct rogue_fwif_cmd_compute *cmd;
+ int err;
+
+ if (args->flags & ~DRM_PVR_SUBMIT_JOB_COMPUTE_CMD_FLAGS_MASK)
+ return -EINVAL;
+
+ if (job->ctx->type != DRM_PVR_CTX_TYPE_COMPUTE)
+ return -EINVAL;
+
+ job->fw_ccb_cmd_type = ROGUE_FWIF_CCB_CMD_TYPE_CDM;
+ err = pvr_fw_cmd_init(job->pvr_dev, job, &pvr_cmd_compute_stream,
+ args->cmd_stream, args->cmd_stream_len);
+ if (err)
+ return err;
+
+ cmd = job->cmd;
+ cmd->common.frame_num = 0;
+ cmd->flags = convert_compute_flags(args->flags);
+ return 0;
+}
+
+static u32
+convert_transfer_flags(u32 in_flags)
+{
+ u32 out_flags = 0;
+
+ if (in_flags & DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_SINGLE_CORE)
+ out_flags |= ROGUE_TRANSFER_FLAGS_SINGLE_CORE;
+
+ return out_flags;
+}
+
+static int
+pvr_transfer_job_fw_cmd_init(struct pvr_job *job,
+ struct drm_pvr_job *args)
+{
+ struct rogue_fwif_cmd_transfer *cmd;
+ int err;
+
+ if (args->flags & ~DRM_PVR_SUBMIT_JOB_TRANSFER_CMD_FLAGS_MASK)
+ return -EINVAL;
+
+ if (job->ctx->type != DRM_PVR_CTX_TYPE_TRANSFER_FRAG)
+ return -EINVAL;
+
+ job->fw_ccb_cmd_type = ROGUE_FWIF_CCB_CMD_TYPE_TQ_3D;
+ err = pvr_fw_cmd_init(job->pvr_dev, job, &pvr_cmd_transfer_stream,
+ args->cmd_stream, args->cmd_stream_len);
+ if (err)
+ return err;
+
+ cmd = job->cmd;
+ cmd->common.frame_num = 0;
+ cmd->flags = convert_transfer_flags(args->flags);
+ return 0;
+}
+
+static int
+pvr_job_fw_cmd_init(struct pvr_job *job,
+ struct drm_pvr_job *args)
+{
+ switch (args->type) {
+ case DRM_PVR_JOB_TYPE_GEOMETRY:
+ return pvr_geom_job_fw_cmd_init(job, args);
+
+ case DRM_PVR_JOB_TYPE_FRAGMENT:
+ return pvr_frag_job_fw_cmd_init(job, args);
+
+ case DRM_PVR_JOB_TYPE_COMPUTE:
+ return pvr_compute_job_fw_cmd_init(job, args);
+
+ case DRM_PVR_JOB_TYPE_TRANSFER_FRAG:
+ return pvr_transfer_job_fw_cmd_init(job, args);
+
+ default:
+ return -EINVAL;
+ }
+}
+
+/**
+ * struct pvr_job_data - Helper container for pairing jobs with the
+ * sync_ops supplied for them by the user.
+ */
+struct pvr_job_data {
+ /** @job: Pointer to the job. */
+ struct pvr_job *job;
+
+ /** @sync_ops: Pointer to the sync_ops associated with @job. */
+ struct drm_pvr_sync_op *sync_ops;
+
+ /** @sync_op_count: Number of members of @sync_ops. */
+ u32 sync_op_count;
+};
+
+/**
+ * prepare_job_syncs() - Prepare all sync objects for a single job.
+ * @pvr_file: PowerVR file.
+ * @job_data: Precreated job and sync_ops array.
+ * @signal_array: xarray to receive signal sync objects.
+ *
+ * Returns:
+ * * 0 on success, or
+ * * Any error code returned by pvr_sync_signal_array_collect_ops(),
+ * pvr_sync_add_deps_to_job(), drm_sched_job_add_resv_dependencies() or
+ * pvr_sync_signal_array_update_fences().
+ */
+static int
+prepare_job_syncs(struct pvr_file *pvr_file,
+ struct pvr_job_data *job_data,
+ struct xarray *signal_array)
+{
+ struct dma_fence *done_fence;
+ int err = pvr_sync_signal_array_collect_ops(signal_array,
+ from_pvr_file(pvr_file),
+ job_data->sync_op_count,
+ job_data->sync_ops);
+
+ if (err)
+ return err;
+
+ err = pvr_sync_add_deps_to_job(pvr_file, &job_data->job->base,
+ job_data->sync_op_count,
+ job_data->sync_ops, signal_array);
+ if (err)
+ return err;
+
+ if (job_data->job->hwrt) {
+ /* The geometry job writes the HWRT region headers, which are
+ * then read by the fragment job.
+ */
+ struct drm_gem_object *obj =
+ gem_from_pvr_gem(job_data->job->hwrt->fw_obj->gem);
+ enum dma_resv_usage usage =
+ dma_resv_usage_rw(job_data->job->type ==
+ DRM_PVR_JOB_TYPE_GEOMETRY);
+
+ dma_resv_lock(obj->resv, NULL);
+ err = drm_sched_job_add_resv_dependencies(&job_data->job->base,
+ obj->resv, usage);
+ dma_resv_unlock(obj->resv);
+ if (err)
+ return err;
+ }
+
+ /* We need to arm the job to get the job done fence. */
+ done_fence = pvr_queue_job_arm(job_data->job);
+
+ err = pvr_sync_signal_array_update_fences(signal_array,
+ job_data->sync_op_count,
+ job_data->sync_ops,
+ done_fence);
+ return err;
+}
+
+/**
+ * prepare_job_syncs_for_each() - Prepare all sync objects for an array of jobs.
+ * @file: PowerVR file.
+ * @job_data: Array of precreated jobs and their sync_ops.
+ * @job_count: Number of jobs.
+ * @signal_array: xarray to receive signal sync objects.
+ *
+ * Returns:
+ * * 0 on success, or
+ * * Any error code returned by pvr_vm_bind_job_prepare_syncs().
+ */
+static int
+prepare_job_syncs_for_each(struct pvr_file *pvr_file,
+ struct pvr_job_data *job_data,
+ u32 *job_count,
+ struct xarray *signal_array)
+{
+ for (u32 i = 0; i < *job_count; i++) {
+ int err = prepare_job_syncs(pvr_file, &job_data[i],
+ signal_array);
+
+ if (err) {
+ *job_count = i;
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static struct pvr_job *
+create_job(struct pvr_device *pvr_dev,
+ struct pvr_file *pvr_file,
+ struct drm_pvr_job *args)
+{
+ struct pvr_job *job = NULL;
+ int err;
+
+ if (!args->cmd_stream || !args->cmd_stream_len)
+ return ERR_PTR(-EINVAL);
+
+ if (args->type != DRM_PVR_JOB_TYPE_GEOMETRY &&
+ args->type != DRM_PVR_JOB_TYPE_FRAGMENT &&
+ (args->hwrt.set_handle || args->hwrt.data_index))
+ return ERR_PTR(-EINVAL);
+
+ job = kzalloc(sizeof(*job), GFP_KERNEL);
+ if (!job)
+ return ERR_PTR(-ENOMEM);
+
+ kref_init(&job->ref_count);
+ job->type = args->type;
+ job->pvr_dev = pvr_dev;
+
+ err = xa_alloc(&pvr_dev->job_ids, &job->id, job, xa_limit_32b, GFP_KERNEL);
+ if (err)
+ goto err_put_job;
+
+ job->ctx = pvr_context_lookup(pvr_file, args->context_handle);
+ if (!job->ctx) {
+ err = -EINVAL;
+ goto err_put_job;
+ }
+
+ if (args->hwrt.set_handle) {
+ job->hwrt = pvr_hwrt_data_lookup(pvr_file, args->hwrt.set_handle,
+ args->hwrt.data_index);
+ if (!job->hwrt) {
+ err = -EINVAL;
+ goto err_put_job;
+ }
+ }
+
+ err = pvr_job_fw_cmd_init(job, args);
+ if (err)
+ goto err_put_job;
+
+ err = pvr_queue_job_init(job);
+ if (err)
+ goto err_put_job;
+
+ return job;
+
+err_put_job:
+ pvr_job_put(job);
+ return ERR_PTR(err);
+}
+
+/**
+ * pvr_job_data_fini() - Cleanup all allocs used to set up job submission.
+ * @job_data: Job data array.
+ * @job_count: Number of members of @job_data.
+ */
+static void
+pvr_job_data_fini(struct pvr_job_data *job_data, u32 job_count)
+{
+ for (u32 i = 0; i < job_count; i++) {
+ pvr_job_put(job_data[i].job);
+ kvfree(job_data[i].sync_ops);
+ }
+}
+
+/**
+ * pvr_job_data_init() - Init an array of created jobs, associating them with
+ * the appropriate sync_ops args, which will be copied in.
+ * @pvr_dev: Target PowerVR device.
+ * @pvr_file: Pointer to PowerVR file structure.
+ * @job_args: Job args array copied from user.
+ * @job_count: Number of members of @job_args.
+ * @job_data_out: Job data array.
+ */
+static int pvr_job_data_init(struct pvr_device *pvr_dev,
+ struct pvr_file *pvr_file,
+ struct drm_pvr_job *job_args,
+ u32 *job_count,
+ struct pvr_job_data *job_data_out)
+{
+ int err = 0, i = 0;
+
+ for (; i < *job_count; i++) {
+ job_data_out[i].job =
+ create_job(pvr_dev, pvr_file, &job_args[i]);
+ err = PTR_ERR_OR_ZERO(job_data_out[i].job);
+
+ if (err) {
+ *job_count = i;
+ job_data_out[i].job = NULL;
+ goto err_cleanup;
+ }
+
+ err = PVR_UOBJ_GET_ARRAY(job_data_out[i].sync_ops,
+ &job_args[i].sync_ops);
+ if (err) {
+ *job_count = i;
+
+ /* Ensure the job created above is also cleaned up. */
+ i++;
+ goto err_cleanup;
+ }
+
+ job_data_out[i].sync_op_count = job_args[i].sync_ops.count;
+ }
+
+ return 0;
+
+err_cleanup:
+ pvr_job_data_fini(job_data_out, i);
+
+ return err;
+}
+
+static void
+push_jobs(struct pvr_job_data *job_data, u32 job_count)
+{
+ for (u32 i = 0; i < job_count; i++)
+ pvr_queue_job_push(job_data[i].job);
+}
+
+static int
+prepare_fw_obj_resv(struct drm_exec *exec, struct pvr_fw_object *fw_obj)
+{
+ return drm_exec_prepare_obj(exec, gem_from_pvr_gem(fw_obj->gem), 1);
+}
+
+static int
+jobs_lock_all_objs(struct drm_exec *exec, struct pvr_job_data *job_data,
+ u32 job_count)
+{
+ for (u32 i = 0; i < job_count; i++) {
+ struct pvr_job *job = job_data[i].job;
+
+ /* Grab a lock on a the context, to guard against
+ * concurrent submission to the same queue.
+ */
+ int err = drm_exec_lock_obj(exec,
+ gem_from_pvr_gem(job->ctx->fw_obj->gem));
+
+ if (err)
+ return err;
+
+ if (job->hwrt) {
+ err = prepare_fw_obj_resv(exec,
+ job->hwrt->fw_obj);
+ if (err)
+ return err;
+ }
+ }
+
+ return 0;
+}
+
+static int
+prepare_job_resvs_for_each(struct drm_exec *exec, struct pvr_job_data *job_data,
+ u32 job_count)
+{
+ drm_exec_until_all_locked(exec) {
+ int err = jobs_lock_all_objs(exec, job_data, job_count);
+
+ drm_exec_retry_on_contention(exec);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
+static void
+update_job_resvs(struct pvr_job *job)
+{
+ if (job->hwrt) {
+ enum dma_resv_usage usage = job->type == DRM_PVR_JOB_TYPE_GEOMETRY ?
+ DMA_RESV_USAGE_WRITE : DMA_RESV_USAGE_READ;
+ struct drm_gem_object *obj = gem_from_pvr_gem(job->hwrt->fw_obj->gem);
+
+ dma_resv_add_fence(obj->resv, &job->base.s_fence->finished, usage);
+ }
+}
+
+static void
+update_job_resvs_for_each(struct pvr_job_data *job_data, u32 job_count)
+{
+ for (u32 i = 0; i < job_count; i++)
+ update_job_resvs(job_data[i].job);
+}
+
+static bool can_combine_jobs(struct pvr_job *a, struct pvr_job *b)
+{
+ struct pvr_job *geom_job = a, *frag_job = b;
+ struct dma_fence *fence;
+ unsigned long index;
+
+ /* Geometry and fragment jobs can be combined if they are queued to the
+ * same context and targeting the same HWRT.
+ */
+ if (a->type != DRM_PVR_JOB_TYPE_GEOMETRY ||
+ b->type != DRM_PVR_JOB_TYPE_FRAGMENT ||
+ a->ctx != b->ctx ||
+ a->hwrt != b->hwrt)
+ return false;
+
+ xa_for_each(&frag_job->base.dependencies, index, fence) {
+ /* We combine when we see an explicit geom -> frag dep. */
+ if (&geom_job->base.s_fence->scheduled == fence)
+ return true;
+ }
+
+ return false;
+}
+
+static struct dma_fence *
+get_last_queued_job_scheduled_fence(struct pvr_queue *queue,
+ struct pvr_job_data *job_data,
+ u32 cur_job_pos)
+{
+ /* We iterate over the current job array in reverse order to grab the
+ * last to-be-queued job targeting the same queue.
+ */
+ for (u32 i = cur_job_pos; i > 0; i--) {
+ struct pvr_job *job = job_data[i - 1].job;
+
+ if (job->ctx == queue->ctx && job->type == queue->type)
+ return dma_fence_get(&job->base.s_fence->scheduled);
+ }
+
+ /* If we didn't find any, we just return the last queued job scheduled
+ * fence attached to the queue.
+ */
+ return dma_fence_get(queue->last_queued_job_scheduled_fence);
+}
+
+static int
+pvr_jobs_link_geom_frag(struct pvr_job_data *job_data, u32 *job_count)
+{
+ for (u32 i = 0; i < *job_count - 1; i++) {
+ struct pvr_job *geom_job = job_data[i].job;
+ struct pvr_job *frag_job = job_data[i + 1].job;
+ struct pvr_queue *frag_queue;
+ struct dma_fence *f;
+
+ if (!can_combine_jobs(job_data[i].job, job_data[i + 1].job))
+ continue;
+
+ /* The fragment job will be submitted by the geometry queue. We
+ * need to make sure it comes after all the other fragment jobs
+ * queued before it.
+ */
+ frag_queue = pvr_context_get_queue_for_job(frag_job->ctx,
+ frag_job->type);
+ f = get_last_queued_job_scheduled_fence(frag_queue, job_data,
+ i);
+ if (f) {
+ int err = drm_sched_job_add_dependency(&geom_job->base,
+ f);
+ if (err) {
+ *job_count = i;
+ return err;
+ }
+ }
+
+ /* The KCCB slot will be reserved by the geometry job, so we can
+ * drop the KCCB fence on the fragment job.
+ */
+ pvr_kccb_fence_put(frag_job->kccb_fence);
+ frag_job->kccb_fence = NULL;
+
+ geom_job->paired_job = frag_job;
+ frag_job->paired_job = geom_job;
+
+ /* Skip the fragment job we just paired to the geometry job. */
+ i++;
+ }
+
+ return 0;
+}
+
+/**
+ * pvr_submit_jobs() - Submit jobs to the GPU
+ * @pvr_dev: Target PowerVR device.
+ * @pvr_file: Pointer to PowerVR file structure.
+ * @args: Ioctl args.
+ * @job_count: Number of jobs in @jobs_args. On error this will be updated
+ * with the index into @jobs_args where the error occurred.
+ *
+ * This initial implementation is entirely synchronous; on return the GPU will
+ * be idle. This will not be the case for future implementations.
+ *
+ * Returns:
+ * * 0 on success,
+ * * -%EFAULT if arguments can not be copied from user space, or
+ * * -%EINVAL on invalid arguments, or
+ * * Any other error.
+ */
+int
+pvr_submit_jobs(struct pvr_device *pvr_dev, struct pvr_file *pvr_file,
+ struct drm_pvr_ioctl_submit_jobs_args *args)
+{
+ struct pvr_job_data *job_data = NULL;
+ struct drm_pvr_job *job_args;
+ struct xarray signal_array;
+ u32 jobs_alloced = 0;
+ struct drm_exec exec;
+ int err;
+
+ if (!args->jobs.count)
+ return -EINVAL;
+
+ err = PVR_UOBJ_GET_ARRAY(job_args, &args->jobs);
+ if (err)
+ return err;
+
+ job_data = kvmalloc_array(args->jobs.count, sizeof(*job_data),
+ GFP_KERNEL | __GFP_ZERO);
+ if (!job_data) {
+ err = -ENOMEM;
+ goto out_free;
+ }
+
+ err = pvr_job_data_init(pvr_dev, pvr_file, job_args, &args->jobs.count,
+ job_data);
+ if (err)
+ goto out_free;
+
+ jobs_alloced = args->jobs.count;
+
+ /*
+ * Flush MMU if needed - this has been deferred until now to avoid
+ * overuse of this expensive operation.
+ */
+ err = pvr_mmu_flush_exec(pvr_dev, false);
+ if (err)
+ goto out_job_data_cleanup;
+
+ drm_exec_init(&exec, DRM_EXEC_INTERRUPTIBLE_WAIT | DRM_EXEC_IGNORE_DUPLICATES);
+
+ xa_init_flags(&signal_array, XA_FLAGS_ALLOC);
+
+ err = prepare_job_syncs_for_each(pvr_file, job_data, &args->jobs.count,
+ &signal_array);
+ if (err)
+ goto out_exec_fini;
+
+ err = prepare_job_resvs_for_each(&exec, job_data, args->jobs.count);
+ if (err)
+ goto out_exec_fini;
+
+ err = pvr_jobs_link_geom_frag(job_data, &args->jobs.count);
+ if (err)
+ goto out_exec_fini;
+
+ /* Anything after that point must succeed because we start exposing job
+ * finished fences to the outside world.
+ */
+ update_job_resvs_for_each(job_data, args->jobs.count);
+ push_jobs(job_data, args->jobs.count);
+ pvr_sync_signal_array_push_fences(&signal_array);
+ err = 0;
+
+out_exec_fini:
+ drm_exec_fini(&exec);
+ pvr_sync_signal_array_cleanup(&signal_array);
+
+out_job_data_cleanup:
+ pvr_job_data_fini(job_data, jobs_alloced);
+
+out_free:
+ kvfree(job_data);
+ kvfree(job_args);
+
+ return err;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#ifndef PVR_JOB_H
+#define PVR_JOB_H
+
+#include <uapi/drm/pvr_drm.h>
+
+#include <linux/kref.h>
+#include <linux/types.h>
+
+#include <drm/drm_gem.h>
+#include <drm/gpu_scheduler.h>
+
+#include "pvr_power.h"
+
+/* Forward declaration from "pvr_context.h". */
+struct pvr_context;
+
+/* Forward declarations from "pvr_device.h". */
+struct pvr_device;
+struct pvr_file;
+
+/* Forward declarations from "pvr_hwrt.h". */
+struct pvr_hwrt_data;
+
+/* Forward declaration from "pvr_queue.h". */
+struct pvr_queue;
+
+struct pvr_job {
+ /** @base: drm_sched_job object. */
+ struct drm_sched_job base;
+
+ /** @ref_count: Refcount for job. */
+ struct kref ref_count;
+
+ /** @type: Type of job. */
+ enum drm_pvr_job_type type;
+
+ /** @id: Job ID number. */
+ u32 id;
+
+ /**
+ * @paired_job: Job paired to this job.
+ *
+ * This field is only meaningful for geometry and fragment jobs.
+ *
+ * Paired jobs are executed on the same context, and need to be submitted
+ * atomically to the FW, to make sure the partial render logic has a
+ * fragment job to execute when the Parameter Manager runs out of memory.
+ *
+ * The geometry job should point to the fragment job it's paired with,
+ * and the fragment job should point to the geometry job it's paired with.
+ */
+ struct pvr_job *paired_job;
+
+ /** @cccb_fence: Fence used to wait for CCCB space. */
+ struct dma_fence *cccb_fence;
+
+ /** @kccb_fence: Fence used to wait for KCCB space. */
+ struct dma_fence *kccb_fence;
+
+ /** @done_fence: Fence to signal when the job is done. */
+ struct dma_fence *done_fence;
+
+ /** @pvr_dev: Device pointer. */
+ struct pvr_device *pvr_dev;
+
+ /** @ctx: Pointer to owning context. */
+ struct pvr_context *ctx;
+
+ /** @cmd: Command data. Format depends on @type. */
+ void *cmd;
+
+ /** @cmd_len: Length of command data, in bytes. */
+ u32 cmd_len;
+
+ /**
+ * @fw_ccb_cmd_type: Firmware CCB command type. Must be one of %ROGUE_FWIF_CCB_CMD_TYPE_*.
+ */
+ u32 fw_ccb_cmd_type;
+
+ /** @hwrt: HWRT object. Will be NULL for compute and transfer jobs. */
+ struct pvr_hwrt_data *hwrt;
+
+ /**
+ * @has_pm_ref: True if the job has a power ref, thus forcing the GPU to stay on until
+ * the job is done.
+ */
+ bool has_pm_ref;
+};
+
+/**
+ * pvr_job_get() - Take additional reference on job.
+ * @job: Job pointer.
+ *
+ * Call pvr_job_put() to release.
+ *
+ * Returns:
+ * * The requested job on success, or
+ * * %NULL if no job pointer passed.
+ */
+static __always_inline struct pvr_job *
+pvr_job_get(struct pvr_job *job)
+{
+ if (job)
+ kref_get(&job->ref_count);
+
+ return job;
+}
+
+void pvr_job_put(struct pvr_job *job);
+
+/**
+ * pvr_job_release_pm_ref() - Release the PM ref if the job acquired it.
+ * @job: The job to release the PM ref on.
+ */
+static __always_inline void
+pvr_job_release_pm_ref(struct pvr_job *job)
+{
+ if (job->has_pm_ref) {
+ pvr_power_put(job->pvr_dev);
+ job->has_pm_ref = false;
+ }
+}
+
+/**
+ * pvr_job_get_pm_ref() - Get a PM ref and attach it to the job.
+ * @job: The job to attach the PM ref to.
+ *
+ * Return:
+ * * 0 on success, or
+ * * Any error returned by pvr_power_get() otherwise.
+ */
+static __always_inline int
+pvr_job_get_pm_ref(struct pvr_job *job)
+{
+ int err;
+
+ if (job->has_pm_ref)
+ return 0;
+
+ err = pvr_power_get(job->pvr_dev);
+ if (!err)
+ job->has_pm_ref = true;
+
+ return err;
+}
+
+int pvr_job_wait_first_non_signaled_native_dep(struct pvr_job *job);
+
+bool pvr_job_non_native_deps_done(struct pvr_job *job);
+
+int pvr_job_fits_in_cccb(struct pvr_job *job, unsigned long native_dep_count);
+
+void pvr_job_submit(struct pvr_job *job);
+
+int pvr_submit_jobs(struct pvr_device *pvr_dev, struct pvr_file *pvr_file,
+ struct drm_pvr_ioctl_submit_jobs_args *args);
+
+#endif /* PVR_JOB_H */
#include "pvr_fw.h"
#include "pvr_fw_startstop.h"
#include "pvr_power.h"
+#include "pvr_queue.h"
#include "pvr_rogue_fwif.h"
#include <drm/drm_drv.h>
pvr_dev->watchdog.kccb_stall_count = 0;
return true;
}
+ } else if (pvr_dev->watchdog.old_kccb_cmds_executed == kccb_cmds_executed) {
+ bool has_active_contexts;
+
+ mutex_lock(&pvr_dev->queues.lock);
+ has_active_contexts = list_empty(&pvr_dev->queues.active);
+ mutex_unlock(&pvr_dev->queues.lock);
+
+ if (has_active_contexts) {
+ /* Send a HEALTH_CHECK command so we can verify FW is still alive. */
+ struct rogue_fwif_kccb_cmd health_check_cmd;
+
+ health_check_cmd.cmd_type = ROGUE_FWIF_KCCB_CMD_HEALTH_CHECK;
+
+ pvr_kccb_send_cmd_powered(pvr_dev, &health_check_cmd, NULL);
+ }
} else {
pvr_dev->watchdog.old_kccb_cmds_executed = kccb_cmds_executed;
pvr_dev->watchdog.kccb_stall_count = 0;
int
pvr_power_reset(struct pvr_device *pvr_dev, bool hard_reset)
{
+ bool queues_disabled = false;
int err;
/*
disable_irq(pvr_dev->irq);
do {
+ if (hard_reset) {
+ pvr_queue_device_pre_reset(pvr_dev);
+ queues_disabled = true;
+ }
+
err = pvr_power_fw_disable(pvr_dev, hard_reset);
if (!err) {
if (hard_reset) {
}
} while (err);
+ if (queues_disabled)
+ pvr_queue_device_post_reset(pvr_dev);
+
enable_irq(pvr_dev->irq);
up_write(&pvr_dev->reset_sem);
/* Leave IRQs disabled if the device is lost. */
+ if (queues_disabled)
+ pvr_queue_device_post_reset(pvr_dev);
+
err_up_write:
up_write(&pvr_dev->reset_sem);
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#include <drm/drm_managed.h>
+#include <drm/gpu_scheduler.h>
+
+#include "pvr_cccb.h"
+#include "pvr_context.h"
+#include "pvr_device.h"
+#include "pvr_drv.h"
+#include "pvr_job.h"
+#include "pvr_queue.h"
+#include "pvr_vm.h"
+
+#include "pvr_rogue_fwif_client.h"
+
+#define MAX_DEADLINE_MS 30000
+
+#define CTX_COMPUTE_CCCB_SIZE_LOG2 15
+#define CTX_FRAG_CCCB_SIZE_LOG2 15
+#define CTX_GEOM_CCCB_SIZE_LOG2 15
+#define CTX_TRANSFER_CCCB_SIZE_LOG2 15
+
+static int get_xfer_ctx_state_size(struct pvr_device *pvr_dev)
+{
+ u32 num_isp_store_registers;
+
+ if (PVR_HAS_FEATURE(pvr_dev, xe_memory_hierarchy)) {
+ num_isp_store_registers = 1;
+ } else {
+ int err;
+
+ err = PVR_FEATURE_VALUE(pvr_dev, num_isp_ipp_pipes, &num_isp_store_registers);
+ if (WARN_ON(err))
+ return err;
+ }
+
+ return sizeof(struct rogue_fwif_frag_ctx_state) +
+ (num_isp_store_registers *
+ sizeof(((struct rogue_fwif_frag_ctx_state *)0)->frag_reg_isp_store[0]));
+}
+
+static int get_frag_ctx_state_size(struct pvr_device *pvr_dev)
+{
+ u32 num_isp_store_registers;
+ int err;
+
+ if (PVR_HAS_FEATURE(pvr_dev, xe_memory_hierarchy)) {
+ err = PVR_FEATURE_VALUE(pvr_dev, num_raster_pipes, &num_isp_store_registers);
+ if (WARN_ON(err))
+ return err;
+
+ if (PVR_HAS_FEATURE(pvr_dev, gpu_multicore_support)) {
+ u32 xpu_max_slaves;
+
+ err = PVR_FEATURE_VALUE(pvr_dev, xpu_max_slaves, &xpu_max_slaves);
+ if (WARN_ON(err))
+ return err;
+
+ num_isp_store_registers *= (1 + xpu_max_slaves);
+ }
+ } else {
+ err = PVR_FEATURE_VALUE(pvr_dev, num_isp_ipp_pipes, &num_isp_store_registers);
+ if (WARN_ON(err))
+ return err;
+ }
+
+ return sizeof(struct rogue_fwif_frag_ctx_state) +
+ (num_isp_store_registers *
+ sizeof(((struct rogue_fwif_frag_ctx_state *)0)->frag_reg_isp_store[0]));
+}
+
+static int get_ctx_state_size(struct pvr_device *pvr_dev, enum drm_pvr_job_type type)
+{
+ switch (type) {
+ case DRM_PVR_JOB_TYPE_GEOMETRY:
+ return sizeof(struct rogue_fwif_geom_ctx_state);
+ case DRM_PVR_JOB_TYPE_FRAGMENT:
+ return get_frag_ctx_state_size(pvr_dev);
+ case DRM_PVR_JOB_TYPE_COMPUTE:
+ return sizeof(struct rogue_fwif_compute_ctx_state);
+ case DRM_PVR_JOB_TYPE_TRANSFER_FRAG:
+ return get_xfer_ctx_state_size(pvr_dev);
+ }
+
+ WARN(1, "Invalid queue type");
+ return -EINVAL;
+}
+
+static u32 get_ctx_offset(enum drm_pvr_job_type type)
+{
+ switch (type) {
+ case DRM_PVR_JOB_TYPE_GEOMETRY:
+ return offsetof(struct rogue_fwif_fwrendercontext, geom_context);
+ case DRM_PVR_JOB_TYPE_FRAGMENT:
+ return offsetof(struct rogue_fwif_fwrendercontext, frag_context);
+ case DRM_PVR_JOB_TYPE_COMPUTE:
+ return offsetof(struct rogue_fwif_fwcomputecontext, cdm_context);
+ case DRM_PVR_JOB_TYPE_TRANSFER_FRAG:
+ return offsetof(struct rogue_fwif_fwtransfercontext, tq_context);
+ }
+
+ return 0;
+}
+
+static const char *
+pvr_queue_fence_get_driver_name(struct dma_fence *f)
+{
+ return PVR_DRIVER_NAME;
+}
+
+static void pvr_queue_fence_release(struct dma_fence *f)
+{
+ struct pvr_queue_fence *fence = container_of(f, struct pvr_queue_fence, base);
+
+ pvr_context_put(fence->queue->ctx);
+ dma_fence_free(f);
+}
+
+static const char *
+pvr_queue_job_fence_get_timeline_name(struct dma_fence *f)
+{
+ struct pvr_queue_fence *fence = container_of(f, struct pvr_queue_fence, base);
+
+ switch (fence->queue->type) {
+ case DRM_PVR_JOB_TYPE_GEOMETRY:
+ return "geometry";
+
+ case DRM_PVR_JOB_TYPE_FRAGMENT:
+ return "fragment";
+
+ case DRM_PVR_JOB_TYPE_COMPUTE:
+ return "compute";
+
+ case DRM_PVR_JOB_TYPE_TRANSFER_FRAG:
+ return "transfer";
+ }
+
+ WARN(1, "Invalid queue type");
+ return "invalid";
+}
+
+static const char *
+pvr_queue_cccb_fence_get_timeline_name(struct dma_fence *f)
+{
+ struct pvr_queue_fence *fence = container_of(f, struct pvr_queue_fence, base);
+
+ switch (fence->queue->type) {
+ case DRM_PVR_JOB_TYPE_GEOMETRY:
+ return "geometry-cccb";
+
+ case DRM_PVR_JOB_TYPE_FRAGMENT:
+ return "fragment-cccb";
+
+ case DRM_PVR_JOB_TYPE_COMPUTE:
+ return "compute-cccb";
+
+ case DRM_PVR_JOB_TYPE_TRANSFER_FRAG:
+ return "transfer-cccb";
+ }
+
+ WARN(1, "Invalid queue type");
+ return "invalid";
+}
+
+static const struct dma_fence_ops pvr_queue_job_fence_ops = {
+ .get_driver_name = pvr_queue_fence_get_driver_name,
+ .get_timeline_name = pvr_queue_job_fence_get_timeline_name,
+ .release = pvr_queue_fence_release,
+};
+
+/**
+ * to_pvr_queue_job_fence() - Return a pvr_queue_fence object if the fence is
+ * backed by a UFO.
+ * @f: The dma_fence to turn into a pvr_queue_fence.
+ *
+ * Return:
+ * * A non-NULL pvr_queue_fence object if the dma_fence is backed by a UFO, or
+ * * NULL otherwise.
+ */
+static struct pvr_queue_fence *
+to_pvr_queue_job_fence(struct dma_fence *f)
+{
+ struct drm_sched_fence *sched_fence = to_drm_sched_fence(f);
+
+ if (sched_fence)
+ f = sched_fence->parent;
+
+ if (f && f->ops == &pvr_queue_job_fence_ops)
+ return container_of(f, struct pvr_queue_fence, base);
+
+ return NULL;
+}
+
+static const struct dma_fence_ops pvr_queue_cccb_fence_ops = {
+ .get_driver_name = pvr_queue_fence_get_driver_name,
+ .get_timeline_name = pvr_queue_cccb_fence_get_timeline_name,
+ .release = pvr_queue_fence_release,
+};
+
+/**
+ * pvr_queue_fence_put() - Put wrapper for pvr_queue_fence objects.
+ * @f: The dma_fence object to put.
+ *
+ * If the pvr_queue_fence has been initialized, we call dma_fence_put(),
+ * otherwise we free the object with dma_fence_free(). This allows us
+ * to do the right thing before and after pvr_queue_fence_init() had been
+ * called.
+ */
+static void pvr_queue_fence_put(struct dma_fence *f)
+{
+ if (!f)
+ return;
+
+ if (WARN_ON(f->ops &&
+ f->ops != &pvr_queue_cccb_fence_ops &&
+ f->ops != &pvr_queue_job_fence_ops))
+ return;
+
+ /* If the fence hasn't been initialized yet, free the object directly. */
+ if (f->ops)
+ dma_fence_put(f);
+ else
+ dma_fence_free(f);
+}
+
+/**
+ * pvr_queue_fence_alloc() - Allocate a pvr_queue_fence fence object
+ *
+ * Call this function to allocate job CCCB and done fences. This only
+ * allocates the objects. Initialization happens when the underlying
+ * dma_fence object is to be returned to drm_sched (in prepare_job() or
+ * run_job()).
+ *
+ * Return:
+ * * A valid pointer if the allocation succeeds, or
+ * * NULL if the allocation fails.
+ */
+static struct dma_fence *
+pvr_queue_fence_alloc(void)
+{
+ struct pvr_queue_fence *fence;
+
+ fence = kzalloc(sizeof(*fence), GFP_KERNEL);
+ if (!fence)
+ return NULL;
+
+ return &fence->base;
+}
+
+/**
+ * pvr_queue_fence_init() - Initializes a pvr_queue_fence object.
+ * @f: The fence to initialize
+ * @queue: The queue this fence belongs to.
+ * @fence_ops: The fence operations.
+ * @fence_ctx: The fence context.
+ *
+ * Wrapper around dma_fence_init() that takes care of initializing the
+ * pvr_queue_fence::queue field too.
+ */
+static void
+pvr_queue_fence_init(struct dma_fence *f,
+ struct pvr_queue *queue,
+ const struct dma_fence_ops *fence_ops,
+ struct pvr_queue_fence_ctx *fence_ctx)
+{
+ struct pvr_queue_fence *fence = container_of(f, struct pvr_queue_fence, base);
+
+ pvr_context_get(queue->ctx);
+ fence->queue = queue;
+ dma_fence_init(&fence->base, fence_ops,
+ &fence_ctx->lock, fence_ctx->id,
+ atomic_inc_return(&fence_ctx->seqno));
+}
+
+/**
+ * pvr_queue_cccb_fence_init() - Initializes a CCCB fence object.
+ * @fence: The fence to initialize.
+ * @queue: The queue this fence belongs to.
+ *
+ * Initializes a fence that can be used to wait for CCCB space.
+ *
+ * Should be called in the ::prepare_job() path, so the fence returned to
+ * drm_sched is valid.
+ */
+static void
+pvr_queue_cccb_fence_init(struct dma_fence *fence, struct pvr_queue *queue)
+{
+ pvr_queue_fence_init(fence, queue, &pvr_queue_cccb_fence_ops,
+ &queue->cccb_fence_ctx.base);
+}
+
+/**
+ * pvr_queue_job_fence_init() - Initializes a job done fence object.
+ * @fence: The fence to initialize.
+ * @queue: The queue this fence belongs to.
+ *
+ * Initializes a fence that will be signaled when the GPU is done executing
+ * a job.
+ *
+ * Should be called *before* the ::run_job() path, so the fence is initialised
+ * before being placed in the pending_list.
+ */
+static void
+pvr_queue_job_fence_init(struct dma_fence *fence, struct pvr_queue *queue)
+{
+ pvr_queue_fence_init(fence, queue, &pvr_queue_job_fence_ops,
+ &queue->job_fence_ctx);
+}
+
+/**
+ * pvr_queue_fence_ctx_init() - Queue fence context initialization.
+ * @fence_ctx: The context to initialize
+ */
+static void
+pvr_queue_fence_ctx_init(struct pvr_queue_fence_ctx *fence_ctx)
+{
+ spin_lock_init(&fence_ctx->lock);
+ fence_ctx->id = dma_fence_context_alloc(1);
+ atomic_set(&fence_ctx->seqno, 0);
+}
+
+static u32 ufo_cmds_size(u32 elem_count)
+{
+ /* We can pass at most ROGUE_FWIF_CCB_CMD_MAX_UFOS per UFO-related command. */
+ u32 full_cmd_count = elem_count / ROGUE_FWIF_CCB_CMD_MAX_UFOS;
+ u32 remaining_elems = elem_count % ROGUE_FWIF_CCB_CMD_MAX_UFOS;
+ u32 size = full_cmd_count *
+ pvr_cccb_get_size_of_cmd_with_hdr(ROGUE_FWIF_CCB_CMD_MAX_UFOS *
+ sizeof(struct rogue_fwif_ufo));
+
+ if (remaining_elems) {
+ size += pvr_cccb_get_size_of_cmd_with_hdr(remaining_elems *
+ sizeof(struct rogue_fwif_ufo));
+ }
+
+ return size;
+}
+
+static u32 job_cmds_size(struct pvr_job *job, u32 ufo_wait_count)
+{
+ /* One UFO cmd for the fence signaling, one UFO cmd per native fence native,
+ * and a command for the job itself.
+ */
+ return ufo_cmds_size(1) + ufo_cmds_size(ufo_wait_count) +
+ pvr_cccb_get_size_of_cmd_with_hdr(job->cmd_len);
+}
+
+/**
+ * job_count_remaining_native_deps() - Count the number of non-signaled native dependencies.
+ * @job: Job to operate on.
+ *
+ * Returns: Number of non-signaled native deps remaining.
+ */
+static unsigned long job_count_remaining_native_deps(struct pvr_job *job)
+{
+ unsigned long remaining_count = 0;
+ struct dma_fence *fence = NULL;
+ unsigned long index;
+
+ xa_for_each(&job->base.dependencies, index, fence) {
+ struct pvr_queue_fence *jfence;
+
+ jfence = to_pvr_queue_job_fence(fence);
+ if (!jfence)
+ continue;
+
+ if (!dma_fence_is_signaled(&jfence->base))
+ remaining_count++;
+ }
+
+ return remaining_count;
+}
+
+/**
+ * pvr_queue_get_job_cccb_fence() - Get the CCCB fence attached to a job.
+ * @queue: The queue this job will be submitted to.
+ * @job: The job to get the CCCB fence on.
+ *
+ * The CCCB fence is a synchronization primitive allowing us to delay job
+ * submission until there's enough space in the CCCB to submit the job.
+ *
+ * Return:
+ * * NULL if there's enough space in the CCCB to submit this job, or
+ * * A valid dma_fence object otherwise.
+ */
+static struct dma_fence *
+pvr_queue_get_job_cccb_fence(struct pvr_queue *queue, struct pvr_job *job)
+{
+ struct pvr_queue_fence *cccb_fence;
+ unsigned int native_deps_remaining;
+
+ /* If the fence is NULL, that means we already checked that we had
+ * enough space in the cccb for our job.
+ */
+ if (!job->cccb_fence)
+ return NULL;
+
+ mutex_lock(&queue->cccb_fence_ctx.job_lock);
+
+ /* Count remaining native dependencies and check if the job fits in the CCCB. */
+ native_deps_remaining = job_count_remaining_native_deps(job);
+ if (pvr_cccb_cmdseq_fits(&queue->cccb, job_cmds_size(job, native_deps_remaining))) {
+ pvr_queue_fence_put(job->cccb_fence);
+ job->cccb_fence = NULL;
+ goto out_unlock;
+ }
+
+ /* There should be no job attached to the CCCB fence context:
+ * drm_sched_entity guarantees that jobs are submitted one at a time.
+ */
+ if (WARN_ON(queue->cccb_fence_ctx.job))
+ pvr_job_put(queue->cccb_fence_ctx.job);
+
+ queue->cccb_fence_ctx.job = pvr_job_get(job);
+
+ /* Initialize the fence before returning it. */
+ cccb_fence = container_of(job->cccb_fence, struct pvr_queue_fence, base);
+ if (!WARN_ON(cccb_fence->queue))
+ pvr_queue_cccb_fence_init(job->cccb_fence, queue);
+
+out_unlock:
+ mutex_unlock(&queue->cccb_fence_ctx.job_lock);
+
+ return dma_fence_get(job->cccb_fence);
+}
+
+/**
+ * pvr_queue_get_job_kccb_fence() - Get the KCCB fence attached to a job.
+ * @queue: The queue this job will be submitted to.
+ * @job: The job to get the KCCB fence on.
+ *
+ * The KCCB fence is a synchronization primitive allowing us to delay job
+ * submission until there's enough space in the KCCB to submit the job.
+ *
+ * Return:
+ * * NULL if there's enough space in the KCCB to submit this job, or
+ * * A valid dma_fence object otherwise.
+ */
+static struct dma_fence *
+pvr_queue_get_job_kccb_fence(struct pvr_queue *queue, struct pvr_job *job)
+{
+ struct pvr_device *pvr_dev = queue->ctx->pvr_dev;
+ struct dma_fence *kccb_fence = NULL;
+
+ /* If the fence is NULL, that means we already checked that we had
+ * enough space in the KCCB for our job.
+ */
+ if (!job->kccb_fence)
+ return NULL;
+
+ if (!WARN_ON(job->kccb_fence->ops)) {
+ kccb_fence = pvr_kccb_reserve_slot(pvr_dev, job->kccb_fence);
+ job->kccb_fence = NULL;
+ }
+
+ return kccb_fence;
+}
+
+static struct dma_fence *
+pvr_queue_get_paired_frag_job_dep(struct pvr_queue *queue, struct pvr_job *job)
+{
+ struct pvr_job *frag_job = job->type == DRM_PVR_JOB_TYPE_GEOMETRY ?
+ job->paired_job : NULL;
+ struct dma_fence *f;
+ unsigned long index;
+
+ if (!frag_job)
+ return NULL;
+
+ xa_for_each(&frag_job->base.dependencies, index, f) {
+ /* Skip already signaled fences. */
+ if (dma_fence_is_signaled(f))
+ continue;
+
+ /* Skip our own fence. */
+ if (f == &job->base.s_fence->scheduled)
+ continue;
+
+ return dma_fence_get(f);
+ }
+
+ return frag_job->base.sched->ops->prepare_job(&frag_job->base, &queue->entity);
+}
+
+/**
+ * pvr_queue_prepare_job() - Return the next internal dependencies expressed as a dma_fence.
+ * @sched_job: The job to query the next internal dependency on
+ * @s_entity: The entity this job is queue on.
+ *
+ * After iterating over drm_sched_job::dependencies, drm_sched let the driver return
+ * its own internal dependencies. We use this function to return our internal dependencies.
+ */
+static struct dma_fence *
+pvr_queue_prepare_job(struct drm_sched_job *sched_job,
+ struct drm_sched_entity *s_entity)
+{
+ struct pvr_job *job = container_of(sched_job, struct pvr_job, base);
+ struct pvr_queue *queue = container_of(s_entity, struct pvr_queue, entity);
+ struct dma_fence *internal_dep = NULL;
+
+ /*
+ * Initialize the done_fence, so we can signal it. This must be done
+ * here because otherwise by the time of run_job() the job will end up
+ * in the pending list without a valid fence.
+ */
+ if (job->type == DRM_PVR_JOB_TYPE_FRAGMENT && job->paired_job) {
+ /*
+ * This will be called on a paired fragment job after being
+ * submitted to firmware. We can tell if this is the case and
+ * bail early from whether run_job() has been called on the
+ * geometry job, which would issue a pm ref.
+ */
+ if (job->paired_job->has_pm_ref)
+ return NULL;
+
+ /*
+ * In this case we need to use the job's own ctx to initialise
+ * the done_fence. The other steps are done in the ctx of the
+ * paired geometry job.
+ */
+ pvr_queue_job_fence_init(job->done_fence,
+ job->ctx->queues.fragment);
+ } else {
+ pvr_queue_job_fence_init(job->done_fence, queue);
+ }
+
+ /* CCCB fence is used to make sure we have enough space in the CCCB to
+ * submit our commands.
+ */
+ internal_dep = pvr_queue_get_job_cccb_fence(queue, job);
+
+ /* KCCB fence is used to make sure we have a KCCB slot to queue our
+ * CMD_KICK.
+ */
+ if (!internal_dep)
+ internal_dep = pvr_queue_get_job_kccb_fence(queue, job);
+
+ /* Any extra internal dependency should be added here, using the following
+ * pattern:
+ *
+ * if (!internal_dep)
+ * internal_dep = pvr_queue_get_job_xxxx_fence(queue, job);
+ */
+
+ /* The paired job fence should come last, when everything else is ready. */
+ if (!internal_dep)
+ internal_dep = pvr_queue_get_paired_frag_job_dep(queue, job);
+
+ return internal_dep;
+}
+
+/**
+ * pvr_queue_update_active_state_locked() - Update the queue active state.
+ * @queue: Queue to update the state on.
+ *
+ * Locked version of pvr_queue_update_active_state(). Must be called with
+ * pvr_device::queue::lock held.
+ */
+static void pvr_queue_update_active_state_locked(struct pvr_queue *queue)
+{
+ struct pvr_device *pvr_dev = queue->ctx->pvr_dev;
+
+ lockdep_assert_held(&pvr_dev->queues.lock);
+
+ /* The queue is temporary out of any list when it's being reset,
+ * we don't want a call to pvr_queue_update_active_state_locked()
+ * to re-insert it behind our back.
+ */
+ if (list_empty(&queue->node))
+ return;
+
+ if (!atomic_read(&queue->in_flight_job_count))
+ list_move_tail(&queue->node, &pvr_dev->queues.idle);
+ else
+ list_move_tail(&queue->node, &pvr_dev->queues.active);
+}
+
+/**
+ * pvr_queue_update_active_state() - Update the queue active state.
+ * @queue: Queue to update the state on.
+ *
+ * Active state is based on the in_flight_job_count value.
+ *
+ * Updating the active state implies moving the queue in or out of the
+ * active queue list, which also defines whether the queue is checked
+ * or not when a FW event is received.
+ *
+ * This function should be called any time a job is submitted or it done
+ * fence is signaled.
+ */
+static void pvr_queue_update_active_state(struct pvr_queue *queue)
+{
+ struct pvr_device *pvr_dev = queue->ctx->pvr_dev;
+
+ mutex_lock(&pvr_dev->queues.lock);
+ pvr_queue_update_active_state_locked(queue);
+ mutex_unlock(&pvr_dev->queues.lock);
+}
+
+static void pvr_queue_submit_job_to_cccb(struct pvr_job *job)
+{
+ struct pvr_queue *queue = container_of(job->base.sched, struct pvr_queue, scheduler);
+ struct rogue_fwif_ufo ufos[ROGUE_FWIF_CCB_CMD_MAX_UFOS];
+ struct pvr_cccb *cccb = &queue->cccb;
+ struct pvr_queue_fence *jfence;
+ struct dma_fence *fence;
+ unsigned long index;
+ u32 ufo_count = 0;
+
+ /* We need to add the queue to the active list before updating the CCCB,
+ * otherwise we might miss the FW event informing us that something
+ * happened on this queue.
+ */
+ atomic_inc(&queue->in_flight_job_count);
+ pvr_queue_update_active_state(queue);
+
+ xa_for_each(&job->base.dependencies, index, fence) {
+ jfence = to_pvr_queue_job_fence(fence);
+ if (!jfence)
+ continue;
+
+ /* Skip the partial render fence, we will place it at the end. */
+ if (job->type == DRM_PVR_JOB_TYPE_FRAGMENT && job->paired_job &&
+ &job->paired_job->base.s_fence->scheduled == fence)
+ continue;
+
+ if (dma_fence_is_signaled(&jfence->base))
+ continue;
+
+ pvr_fw_object_get_fw_addr(jfence->queue->timeline_ufo.fw_obj,
+ &ufos[ufo_count].addr);
+ ufos[ufo_count++].value = jfence->base.seqno;
+
+ if (ufo_count == ARRAY_SIZE(ufos)) {
+ pvr_cccb_write_command_with_header(cccb, ROGUE_FWIF_CCB_CMD_TYPE_FENCE_PR,
+ sizeof(ufos), ufos, 0, 0);
+ ufo_count = 0;
+ }
+ }
+
+ /* Partial render fence goes last. */
+ if (job->type == DRM_PVR_JOB_TYPE_FRAGMENT && job->paired_job) {
+ jfence = to_pvr_queue_job_fence(job->paired_job->done_fence);
+ if (!WARN_ON(!jfence)) {
+ pvr_fw_object_get_fw_addr(jfence->queue->timeline_ufo.fw_obj,
+ &ufos[ufo_count].addr);
+ ufos[ufo_count++].value = job->paired_job->done_fence->seqno;
+ }
+ }
+
+ if (ufo_count) {
+ pvr_cccb_write_command_with_header(cccb, ROGUE_FWIF_CCB_CMD_TYPE_FENCE_PR,
+ sizeof(ufos[0]) * ufo_count, ufos, 0, 0);
+ }
+
+ if (job->type == DRM_PVR_JOB_TYPE_GEOMETRY && job->paired_job) {
+ struct rogue_fwif_cmd_geom *cmd = job->cmd;
+
+ /* Reference value for the partial render test is the current queue fence
+ * seqno minus one.
+ */
+ pvr_fw_object_get_fw_addr(queue->timeline_ufo.fw_obj,
+ &cmd->partial_render_geom_frag_fence.addr);
+ cmd->partial_render_geom_frag_fence.value = job->done_fence->seqno - 1;
+ }
+
+ /* Submit job to FW */
+ pvr_cccb_write_command_with_header(cccb, job->fw_ccb_cmd_type, job->cmd_len, job->cmd,
+ job->id, job->id);
+
+ /* Signal the job fence. */
+ pvr_fw_object_get_fw_addr(queue->timeline_ufo.fw_obj, &ufos[0].addr);
+ ufos[0].value = job->done_fence->seqno;
+ pvr_cccb_write_command_with_header(cccb, ROGUE_FWIF_CCB_CMD_TYPE_UPDATE,
+ sizeof(ufos[0]), ufos, 0, 0);
+}
+
+/**
+ * pvr_queue_run_job() - Submit a job to the FW.
+ * @sched_job: The job to submit.
+ *
+ * This function is called when all non-native dependencies have been met and
+ * when the commands resulting from this job are guaranteed to fit in the CCCB.
+ */
+static struct dma_fence *pvr_queue_run_job(struct drm_sched_job *sched_job)
+{
+ struct pvr_job *job = container_of(sched_job, struct pvr_job, base);
+ struct pvr_device *pvr_dev = job->pvr_dev;
+ int err;
+
+ /* The fragment job is issued along the geometry job when we use combined
+ * geom+frag kicks. When we get there, we should simply return the
+ * done_fence that's been initialized earlier.
+ */
+ if (job->paired_job && job->type == DRM_PVR_JOB_TYPE_FRAGMENT &&
+ job->done_fence->ops) {
+ return dma_fence_get(job->done_fence);
+ }
+
+ /* The only kind of jobs that can be paired are geometry and fragment, and
+ * we bail out early if we see a fragment job that's paired with a geomtry
+ * job.
+ * Paired jobs must also target the same context and point to the same
+ * HWRT.
+ */
+ if (WARN_ON(job->paired_job &&
+ (job->type != DRM_PVR_JOB_TYPE_GEOMETRY ||
+ job->paired_job->type != DRM_PVR_JOB_TYPE_FRAGMENT ||
+ job->hwrt != job->paired_job->hwrt ||
+ job->ctx != job->paired_job->ctx)))
+ return ERR_PTR(-EINVAL);
+
+ err = pvr_job_get_pm_ref(job);
+ if (WARN_ON(err))
+ return ERR_PTR(err);
+
+ if (job->paired_job) {
+ err = pvr_job_get_pm_ref(job->paired_job);
+ if (WARN_ON(err))
+ return ERR_PTR(err);
+ }
+
+ /* Submit our job to the CCCB */
+ pvr_queue_submit_job_to_cccb(job);
+
+ if (job->paired_job) {
+ struct pvr_job *geom_job = job;
+ struct pvr_job *frag_job = job->paired_job;
+ struct pvr_queue *geom_queue = job->ctx->queues.geometry;
+ struct pvr_queue *frag_queue = job->ctx->queues.fragment;
+
+ /* Submit the fragment job along the geometry job and send a combined kick. */
+ pvr_queue_submit_job_to_cccb(frag_job);
+ pvr_cccb_send_kccb_combined_kick(pvr_dev,
+ &geom_queue->cccb, &frag_queue->cccb,
+ pvr_context_get_fw_addr(geom_job->ctx) +
+ geom_queue->ctx_offset,
+ pvr_context_get_fw_addr(frag_job->ctx) +
+ frag_queue->ctx_offset,
+ job->hwrt,
+ frag_job->fw_ccb_cmd_type ==
+ ROGUE_FWIF_CCB_CMD_TYPE_FRAG_PR);
+ } else {
+ struct pvr_queue *queue = container_of(job->base.sched,
+ struct pvr_queue, scheduler);
+
+ pvr_cccb_send_kccb_kick(pvr_dev, &queue->cccb,
+ pvr_context_get_fw_addr(job->ctx) + queue->ctx_offset,
+ job->hwrt);
+ }
+
+ return dma_fence_get(job->done_fence);
+}
+
+static void pvr_queue_stop(struct pvr_queue *queue, struct pvr_job *bad_job)
+{
+ drm_sched_stop(&queue->scheduler, bad_job ? &bad_job->base : NULL);
+}
+
+static void pvr_queue_start(struct pvr_queue *queue)
+{
+ struct pvr_job *job;
+
+ /* Make sure we CPU-signal the UFO object, so other queues don't get
+ * blocked waiting on it.
+ */
+ *queue->timeline_ufo.value = atomic_read(&queue->job_fence_ctx.seqno);
+
+ list_for_each_entry(job, &queue->scheduler.pending_list, base.list) {
+ if (dma_fence_is_signaled(job->done_fence)) {
+ /* Jobs might have completed after drm_sched_stop() was called.
+ * In that case, re-assign the parent field to the done_fence.
+ */
+ WARN_ON(job->base.s_fence->parent);
+ job->base.s_fence->parent = dma_fence_get(job->done_fence);
+ } else {
+ /* If we had unfinished jobs, flag the entity as guilty so no
+ * new job can be submitted.
+ */
+ atomic_set(&queue->ctx->faulty, 1);
+ }
+ }
+
+ drm_sched_start(&queue->scheduler, true);
+}
+
+/**
+ * pvr_queue_timedout_job() - Handle a job timeout event.
+ * @s_job: The job this timeout occurred on.
+ *
+ * FIXME: We don't do anything here to unblock the situation, we just stop+start
+ * the scheduler, and re-assign parent fences in the middle.
+ *
+ * Return:
+ * * DRM_GPU_SCHED_STAT_NOMINAL.
+ */
+static enum drm_gpu_sched_stat
+pvr_queue_timedout_job(struct drm_sched_job *s_job)
+{
+ struct drm_gpu_scheduler *sched = s_job->sched;
+ struct pvr_queue *queue = container_of(sched, struct pvr_queue, scheduler);
+ struct pvr_device *pvr_dev = queue->ctx->pvr_dev;
+ struct pvr_job *job;
+ u32 job_count = 0;
+
+ dev_err(sched->dev, "Job timeout\n");
+
+ /* Before we stop the scheduler, make sure the queue is out of any list, so
+ * any call to pvr_queue_update_active_state_locked() that might happen
+ * until the scheduler is really stopped doesn't end up re-inserting the
+ * queue in the active list. This would cause
+ * pvr_queue_signal_done_fences() and drm_sched_stop() to race with each
+ * other when accessing the pending_list, since drm_sched_stop() doesn't
+ * grab the job_list_lock when modifying the list (it's assuming the
+ * only other accessor is the scheduler, and it's safe to not grab the
+ * lock since it's stopped).
+ */
+ mutex_lock(&pvr_dev->queues.lock);
+ list_del_init(&queue->node);
+ mutex_unlock(&pvr_dev->queues.lock);
+
+ drm_sched_stop(sched, s_job);
+
+ /* Re-assign job parent fences. */
+ list_for_each_entry(job, &sched->pending_list, base.list) {
+ job->base.s_fence->parent = dma_fence_get(job->done_fence);
+ job_count++;
+ }
+ WARN_ON(atomic_read(&queue->in_flight_job_count) != job_count);
+
+ /* Re-insert the queue in the proper list, and kick a queue processing
+ * operation if there were jobs pending.
+ */
+ mutex_lock(&pvr_dev->queues.lock);
+ if (!job_count) {
+ list_move_tail(&queue->node, &pvr_dev->queues.idle);
+ } else {
+ atomic_set(&queue->in_flight_job_count, job_count);
+ list_move_tail(&queue->node, &pvr_dev->queues.active);
+ pvr_queue_process(queue);
+ }
+ mutex_unlock(&pvr_dev->queues.lock);
+
+ drm_sched_start(sched, true);
+
+ return DRM_GPU_SCHED_STAT_NOMINAL;
+}
+
+/**
+ * pvr_queue_free_job() - Release the reference the scheduler had on a job object.
+ * @sched_job: Job object to free.
+ */
+static void pvr_queue_free_job(struct drm_sched_job *sched_job)
+{
+ struct pvr_job *job = container_of(sched_job, struct pvr_job, base);
+
+ drm_sched_job_cleanup(sched_job);
+ job->paired_job = NULL;
+ pvr_job_put(job);
+}
+
+static const struct drm_sched_backend_ops pvr_queue_sched_ops = {
+ .prepare_job = pvr_queue_prepare_job,
+ .run_job = pvr_queue_run_job,
+ .timedout_job = pvr_queue_timedout_job,
+ .free_job = pvr_queue_free_job,
+};
+
+/**
+ * pvr_queue_fence_is_ufo_backed() - Check if a dma_fence is backed by a UFO object
+ * @f: Fence to test.
+ *
+ * A UFO-backed fence is a fence that can be signaled or waited upon FW-side.
+ * pvr_job::done_fence objects are backed by the timeline UFO attached to the queue
+ * they are pushed to, but those fences are not directly exposed to the outside
+ * world, so we also need to check if the fence we're being passed is a
+ * drm_sched_fence that was coming from our driver.
+ */
+bool pvr_queue_fence_is_ufo_backed(struct dma_fence *f)
+{
+ struct drm_sched_fence *sched_fence = f ? to_drm_sched_fence(f) : NULL;
+
+ if (sched_fence &&
+ sched_fence->sched->ops == &pvr_queue_sched_ops)
+ return true;
+
+ if (f && f->ops == &pvr_queue_job_fence_ops)
+ return true;
+
+ return false;
+}
+
+/**
+ * pvr_queue_signal_done_fences() - Signal done fences.
+ * @queue: Queue to check.
+ *
+ * Signal done fences of jobs whose seqno is less than the current value of
+ * the UFO object attached to the queue.
+ */
+static void
+pvr_queue_signal_done_fences(struct pvr_queue *queue)
+{
+ struct pvr_job *job, *tmp_job;
+ u32 cur_seqno;
+
+ spin_lock(&queue->scheduler.job_list_lock);
+ cur_seqno = *queue->timeline_ufo.value;
+ list_for_each_entry_safe(job, tmp_job, &queue->scheduler.pending_list, base.list) {
+ if ((int)(cur_seqno - lower_32_bits(job->done_fence->seqno)) < 0)
+ break;
+
+ if (!dma_fence_is_signaled(job->done_fence)) {
+ dma_fence_signal(job->done_fence);
+ pvr_job_release_pm_ref(job);
+ atomic_dec(&queue->in_flight_job_count);
+ }
+ }
+ spin_unlock(&queue->scheduler.job_list_lock);
+}
+
+/**
+ * pvr_queue_check_job_waiting_for_cccb_space() - Check if the job waiting for CCCB space
+ * can be unblocked
+ * pushed to the CCCB
+ * @queue: Queue to check
+ *
+ * If we have a job waiting for CCCB, and this job now fits in the CCCB, we signal
+ * its CCCB fence, which should kick drm_sched.
+ */
+static void
+pvr_queue_check_job_waiting_for_cccb_space(struct pvr_queue *queue)
+{
+ struct pvr_queue_fence *cccb_fence;
+ u32 native_deps_remaining;
+ struct pvr_job *job;
+
+ mutex_lock(&queue->cccb_fence_ctx.job_lock);
+ job = queue->cccb_fence_ctx.job;
+ if (!job)
+ goto out_unlock;
+
+ /* If we have a job attached to the CCCB fence context, its CCCB fence
+ * shouldn't be NULL.
+ */
+ if (WARN_ON(!job->cccb_fence)) {
+ job = NULL;
+ goto out_unlock;
+ }
+
+ /* If we get there, CCCB fence has to be initialized. */
+ cccb_fence = container_of(job->cccb_fence, struct pvr_queue_fence, base);
+ if (WARN_ON(!cccb_fence->queue)) {
+ job = NULL;
+ goto out_unlock;
+ }
+
+ /* Evict signaled dependencies before checking for CCCB space.
+ * If the job fits, signal the CCCB fence, this should unblock
+ * the drm_sched_entity.
+ */
+ native_deps_remaining = job_count_remaining_native_deps(job);
+ if (!pvr_cccb_cmdseq_fits(&queue->cccb, job_cmds_size(job, native_deps_remaining))) {
+ job = NULL;
+ goto out_unlock;
+ }
+
+ dma_fence_signal(job->cccb_fence);
+ pvr_queue_fence_put(job->cccb_fence);
+ job->cccb_fence = NULL;
+ queue->cccb_fence_ctx.job = NULL;
+
+out_unlock:
+ mutex_unlock(&queue->cccb_fence_ctx.job_lock);
+
+ pvr_job_put(job);
+}
+
+/**
+ * pvr_queue_process() - Process events that happened on a queue.
+ * @queue: Queue to check
+ *
+ * Signal job fences and check if jobs waiting for CCCB space can be unblocked.
+ */
+void pvr_queue_process(struct pvr_queue *queue)
+{
+ lockdep_assert_held(&queue->ctx->pvr_dev->queues.lock);
+
+ pvr_queue_check_job_waiting_for_cccb_space(queue);
+ pvr_queue_signal_done_fences(queue);
+ pvr_queue_update_active_state_locked(queue);
+}
+
+static u32 get_dm_type(struct pvr_queue *queue)
+{
+ switch (queue->type) {
+ case DRM_PVR_JOB_TYPE_GEOMETRY:
+ return PVR_FWIF_DM_GEOM;
+ case DRM_PVR_JOB_TYPE_TRANSFER_FRAG:
+ case DRM_PVR_JOB_TYPE_FRAGMENT:
+ return PVR_FWIF_DM_FRAG;
+ case DRM_PVR_JOB_TYPE_COMPUTE:
+ return PVR_FWIF_DM_CDM;
+ }
+
+ return ~0;
+}
+
+/**
+ * init_fw_context() - Initializes the queue part of a FW context.
+ * @queue: Queue object to initialize the FW context for.
+ * @fw_ctx_map: The FW context CPU mapping.
+ *
+ * FW contexts are containing various states, one of them being a per-queue state
+ * that needs to be initialized for each queue being exposed by a context. This
+ * function takes care of that.
+ */
+static void init_fw_context(struct pvr_queue *queue, void *fw_ctx_map)
+{
+ struct pvr_context *ctx = queue->ctx;
+ struct pvr_fw_object *fw_mem_ctx_obj = pvr_vm_get_fw_mem_context(ctx->vm_ctx);
+ struct rogue_fwif_fwcommoncontext *cctx_fw;
+ struct pvr_cccb *cccb = &queue->cccb;
+
+ cctx_fw = fw_ctx_map + queue->ctx_offset;
+ cctx_fw->ccbctl_fw_addr = cccb->ctrl_fw_addr;
+ cctx_fw->ccb_fw_addr = cccb->cccb_fw_addr;
+
+ cctx_fw->dm = get_dm_type(queue);
+ cctx_fw->priority = ctx->priority;
+ cctx_fw->priority_seq_num = 0;
+ cctx_fw->max_deadline_ms = MAX_DEADLINE_MS;
+ cctx_fw->pid = task_tgid_nr(current);
+ cctx_fw->server_common_context_id = ctx->ctx_id;
+
+ pvr_fw_object_get_fw_addr(fw_mem_ctx_obj, &cctx_fw->fw_mem_context_fw_addr);
+
+ pvr_fw_object_get_fw_addr(queue->reg_state_obj, &cctx_fw->context_state_addr);
+}
+
+/**
+ * pvr_queue_cleanup_fw_context() - Wait for the FW context to be idle and clean it up.
+ * @queue: Queue on FW context to clean up.
+ *
+ * Return:
+ * * 0 on success,
+ * * Any error returned by pvr_fw_structure_cleanup() otherwise.
+ */
+static int pvr_queue_cleanup_fw_context(struct pvr_queue *queue)
+{
+ if (!queue->ctx->fw_obj)
+ return 0;
+
+ return pvr_fw_structure_cleanup(queue->ctx->pvr_dev,
+ ROGUE_FWIF_CLEANUP_FWCOMMONCONTEXT,
+ queue->ctx->fw_obj, queue->ctx_offset);
+}
+
+/**
+ * pvr_queue_job_init() - Initialize queue related fields in a pvr_job object.
+ * @job: The job to initialize.
+ *
+ * Bind the job to a queue and allocate memory to guarantee pvr_queue_job_arm()
+ * and pvr_queue_job_push() can't fail. We also make sure the context type is
+ * valid and the job can fit in the CCCB.
+ *
+ * Return:
+ * * 0 on success, or
+ * * An error code if something failed.
+ */
+int pvr_queue_job_init(struct pvr_job *job)
+{
+ /* Fragment jobs need at least one native fence wait on the geometry job fence. */
+ u32 min_native_dep_count = job->type == DRM_PVR_JOB_TYPE_FRAGMENT ? 1 : 0;
+ struct pvr_queue *queue;
+ int err;
+
+ if (atomic_read(&job->ctx->faulty))
+ return -EIO;
+
+ queue = pvr_context_get_queue_for_job(job->ctx, job->type);
+ if (!queue)
+ return -EINVAL;
+
+ if (!pvr_cccb_cmdseq_can_fit(&queue->cccb, job_cmds_size(job, min_native_dep_count)))
+ return -E2BIG;
+
+ err = drm_sched_job_init(&job->base, &queue->entity, 1, THIS_MODULE);
+ if (err)
+ return err;
+
+ job->cccb_fence = pvr_queue_fence_alloc();
+ job->kccb_fence = pvr_kccb_fence_alloc();
+ job->done_fence = pvr_queue_fence_alloc();
+ if (!job->cccb_fence || !job->kccb_fence || !job->done_fence)
+ return -ENOMEM;
+
+ return 0;
+}
+
+/**
+ * pvr_queue_job_arm() - Arm a job object.
+ * @job: The job to arm.
+ *
+ * Initializes fences and return the drm_sched finished fence so it can
+ * be exposed to the outside world. Once this function is called, you should
+ * make sure the job is pushed using pvr_queue_job_push(), or guarantee that
+ * no one grabbed a reference to the returned fence. The latter can happen if
+ * we do multi-job submission, and something failed when creating/initializing
+ * a job. In that case, we know the fence didn't leave the driver, and we
+ * can thus guarantee nobody will wait on an dead fence object.
+ *
+ * Return:
+ * * A dma_fence object.
+ */
+struct dma_fence *pvr_queue_job_arm(struct pvr_job *job)
+{
+ drm_sched_job_arm(&job->base);
+
+ return &job->base.s_fence->finished;
+}
+
+/**
+ * pvr_queue_job_cleanup() - Cleanup fence/scheduler related fields in the job object.
+ * @job: The job to cleanup.
+ *
+ * Should be called in the job release path.
+ */
+void pvr_queue_job_cleanup(struct pvr_job *job)
+{
+ pvr_queue_fence_put(job->done_fence);
+ pvr_queue_fence_put(job->cccb_fence);
+ pvr_kccb_fence_put(job->kccb_fence);
+
+ if (job->base.s_fence)
+ drm_sched_job_cleanup(&job->base);
+}
+
+/**
+ * pvr_queue_job_push() - Push a job to its queue.
+ * @job: The job to push.
+ *
+ * Must be called after pvr_queue_job_init() and after all dependencies
+ * have been added to the job. This will effectively queue the job to
+ * the drm_sched_entity attached to the queue. We grab a reference on
+ * the job object, so the caller is free to drop its reference when it's
+ * done accessing the job object.
+ */
+void pvr_queue_job_push(struct pvr_job *job)
+{
+ struct pvr_queue *queue = container_of(job->base.sched, struct pvr_queue, scheduler);
+
+ /* Keep track of the last queued job scheduled fence for combined submit. */
+ dma_fence_put(queue->last_queued_job_scheduled_fence);
+ queue->last_queued_job_scheduled_fence = dma_fence_get(&job->base.s_fence->scheduled);
+
+ pvr_job_get(job);
+ drm_sched_entity_push_job(&job->base);
+}
+
+static void reg_state_init(void *cpu_ptr, void *priv)
+{
+ struct pvr_queue *queue = priv;
+
+ if (queue->type == DRM_PVR_JOB_TYPE_GEOMETRY) {
+ struct rogue_fwif_geom_ctx_state *geom_ctx_state_fw = cpu_ptr;
+
+ geom_ctx_state_fw->geom_core[0].geom_reg_vdm_call_stack_pointer_init =
+ queue->callstack_addr;
+ }
+}
+
+/**
+ * pvr_queue_create() - Create a queue object.
+ * @ctx: The context this queue will be attached to.
+ * @type: The type of jobs being pushed to this queue.
+ * @args: The arguments passed to the context creation function.
+ * @fw_ctx_map: CPU mapping of the FW context object.
+ *
+ * Create a queue object that will be used to queue and track jobs.
+ *
+ * Return:
+ * * A valid pointer to a pvr_queue object, or
+ * * An error pointer if the creation/initialization failed.
+ */
+struct pvr_queue *pvr_queue_create(struct pvr_context *ctx,
+ enum drm_pvr_job_type type,
+ struct drm_pvr_ioctl_create_context_args *args,
+ void *fw_ctx_map)
+{
+ static const struct {
+ u32 cccb_size;
+ const char *name;
+ } props[] = {
+ [DRM_PVR_JOB_TYPE_GEOMETRY] = {
+ .cccb_size = CTX_GEOM_CCCB_SIZE_LOG2,
+ .name = "geometry",
+ },
+ [DRM_PVR_JOB_TYPE_FRAGMENT] = {
+ .cccb_size = CTX_FRAG_CCCB_SIZE_LOG2,
+ .name = "fragment"
+ },
+ [DRM_PVR_JOB_TYPE_COMPUTE] = {
+ .cccb_size = CTX_COMPUTE_CCCB_SIZE_LOG2,
+ .name = "compute"
+ },
+ [DRM_PVR_JOB_TYPE_TRANSFER_FRAG] = {
+ .cccb_size = CTX_TRANSFER_CCCB_SIZE_LOG2,
+ .name = "transfer_frag"
+ },
+ };
+ struct pvr_device *pvr_dev = ctx->pvr_dev;
+ struct drm_gpu_scheduler *sched;
+ struct pvr_queue *queue;
+ int ctx_state_size, err;
+ void *cpu_map;
+
+ if (WARN_ON(type >= sizeof(props)))
+ return ERR_PTR(-EINVAL);
+
+ switch (ctx->type) {
+ case DRM_PVR_CTX_TYPE_RENDER:
+ if (type != DRM_PVR_JOB_TYPE_GEOMETRY &&
+ type != DRM_PVR_JOB_TYPE_FRAGMENT)
+ return ERR_PTR(-EINVAL);
+ break;
+ case DRM_PVR_CTX_TYPE_COMPUTE:
+ if (type != DRM_PVR_JOB_TYPE_COMPUTE)
+ return ERR_PTR(-EINVAL);
+ break;
+ case DRM_PVR_CTX_TYPE_TRANSFER_FRAG:
+ if (type != DRM_PVR_JOB_TYPE_TRANSFER_FRAG)
+ return ERR_PTR(-EINVAL);
+ break;
+ default:
+ return ERR_PTR(-EINVAL);
+ }
+
+ ctx_state_size = get_ctx_state_size(pvr_dev, type);
+ if (ctx_state_size < 0)
+ return ERR_PTR(ctx_state_size);
+
+ queue = kzalloc(sizeof(*queue), GFP_KERNEL);
+ if (!queue)
+ return ERR_PTR(-ENOMEM);
+
+ queue->type = type;
+ queue->ctx_offset = get_ctx_offset(type);
+ queue->ctx = ctx;
+ queue->callstack_addr = args->callstack_addr;
+ sched = &queue->scheduler;
+ INIT_LIST_HEAD(&queue->node);
+ mutex_init(&queue->cccb_fence_ctx.job_lock);
+ pvr_queue_fence_ctx_init(&queue->cccb_fence_ctx.base);
+ pvr_queue_fence_ctx_init(&queue->job_fence_ctx);
+
+ err = pvr_cccb_init(pvr_dev, &queue->cccb, props[type].cccb_size, props[type].name);
+ if (err)
+ goto err_free_queue;
+
+ err = pvr_fw_object_create(pvr_dev, ctx_state_size,
+ PVR_BO_FW_FLAGS_DEVICE_UNCACHED,
+ reg_state_init, queue, &queue->reg_state_obj);
+ if (err)
+ goto err_cccb_fini;
+
+ init_fw_context(queue, fw_ctx_map);
+
+ if (type != DRM_PVR_JOB_TYPE_GEOMETRY && type != DRM_PVR_JOB_TYPE_FRAGMENT &&
+ args->callstack_addr) {
+ err = -EINVAL;
+ goto err_release_reg_state;
+ }
+
+ cpu_map = pvr_fw_object_create_and_map(pvr_dev, sizeof(*queue->timeline_ufo.value),
+ PVR_BO_FW_FLAGS_DEVICE_UNCACHED,
+ NULL, NULL, &queue->timeline_ufo.fw_obj);
+ if (IS_ERR(cpu_map)) {
+ err = PTR_ERR(cpu_map);
+ goto err_release_reg_state;
+ }
+
+ queue->timeline_ufo.value = cpu_map;
+
+ err = drm_sched_init(&queue->scheduler,
+ &pvr_queue_sched_ops,
+ pvr_dev->sched_wq, 1, 64 * 1024, 1,
+ msecs_to_jiffies(500),
+ pvr_dev->sched_wq, NULL, "pvr-queue",
+ pvr_dev->base.dev);
+ if (err)
+ goto err_release_ufo;
+
+ err = drm_sched_entity_init(&queue->entity,
+ DRM_SCHED_PRIORITY_MIN,
+ &sched, 1, &ctx->faulty);
+ if (err)
+ goto err_sched_fini;
+
+ mutex_lock(&pvr_dev->queues.lock);
+ list_add_tail(&queue->node, &pvr_dev->queues.idle);
+ mutex_unlock(&pvr_dev->queues.lock);
+
+ return queue;
+
+err_sched_fini:
+ drm_sched_fini(&queue->scheduler);
+
+err_release_ufo:
+ pvr_fw_object_unmap_and_destroy(queue->timeline_ufo.fw_obj);
+
+err_release_reg_state:
+ pvr_fw_object_destroy(queue->reg_state_obj);
+
+err_cccb_fini:
+ pvr_cccb_fini(&queue->cccb);
+
+err_free_queue:
+ mutex_destroy(&queue->cccb_fence_ctx.job_lock);
+ kfree(queue);
+
+ return ERR_PTR(err);
+}
+
+void pvr_queue_device_pre_reset(struct pvr_device *pvr_dev)
+{
+ struct pvr_queue *queue;
+
+ mutex_lock(&pvr_dev->queues.lock);
+ list_for_each_entry(queue, &pvr_dev->queues.idle, node)
+ pvr_queue_stop(queue, NULL);
+ list_for_each_entry(queue, &pvr_dev->queues.active, node)
+ pvr_queue_stop(queue, NULL);
+ mutex_unlock(&pvr_dev->queues.lock);
+}
+
+void pvr_queue_device_post_reset(struct pvr_device *pvr_dev)
+{
+ struct pvr_queue *queue;
+
+ mutex_lock(&pvr_dev->queues.lock);
+ list_for_each_entry(queue, &pvr_dev->queues.active, node)
+ pvr_queue_start(queue);
+ list_for_each_entry(queue, &pvr_dev->queues.idle, node)
+ pvr_queue_start(queue);
+ mutex_unlock(&pvr_dev->queues.lock);
+}
+
+/**
+ * pvr_queue_kill() - Kill a queue.
+ * @queue: The queue to kill.
+ *
+ * Kill the queue so no new jobs can be pushed. Should be called when the
+ * context handle is destroyed. The queue object might last longer if jobs
+ * are still in flight and holding a reference to the context this queue
+ * belongs to.
+ */
+void pvr_queue_kill(struct pvr_queue *queue)
+{
+ drm_sched_entity_destroy(&queue->entity);
+ dma_fence_put(queue->last_queued_job_scheduled_fence);
+ queue->last_queued_job_scheduled_fence = NULL;
+}
+
+/**
+ * pvr_queue_destroy() - Destroy a queue.
+ * @queue: The queue to destroy.
+ *
+ * Cleanup the queue and free the resources attached to it. Should be
+ * called from the context release function.
+ */
+void pvr_queue_destroy(struct pvr_queue *queue)
+{
+ if (!queue)
+ return;
+
+ mutex_lock(&queue->ctx->pvr_dev->queues.lock);
+ list_del_init(&queue->node);
+ mutex_unlock(&queue->ctx->pvr_dev->queues.lock);
+
+ drm_sched_fini(&queue->scheduler);
+ drm_sched_entity_fini(&queue->entity);
+
+ if (WARN_ON(queue->last_queued_job_scheduled_fence))
+ dma_fence_put(queue->last_queued_job_scheduled_fence);
+
+ pvr_queue_cleanup_fw_context(queue);
+
+ pvr_fw_object_unmap_and_destroy(queue->timeline_ufo.fw_obj);
+ pvr_fw_object_destroy(queue->reg_state_obj);
+ pvr_cccb_fini(&queue->cccb);
+ mutex_destroy(&queue->cccb_fence_ctx.job_lock);
+ kfree(queue);
+}
+
+/**
+ * pvr_queue_device_init() - Device-level initialization of queue related fields.
+ * @pvr_dev: The device to initialize.
+ *
+ * Initializes all fields related to queue management in pvr_device.
+ *
+ * Return:
+ * * 0 on success, or
+ * * An error code on failure.
+ */
+int pvr_queue_device_init(struct pvr_device *pvr_dev)
+{
+ int err;
+
+ INIT_LIST_HEAD(&pvr_dev->queues.active);
+ INIT_LIST_HEAD(&pvr_dev->queues.idle);
+ err = drmm_mutex_init(from_pvr_device(pvr_dev), &pvr_dev->queues.lock);
+ if (err)
+ return err;
+
+ pvr_dev->sched_wq = alloc_workqueue("powervr-sched", WQ_UNBOUND, 0);
+ if (!pvr_dev->sched_wq)
+ return -ENOMEM;
+
+ return 0;
+}
+
+/**
+ * pvr_queue_device_fini() - Device-level cleanup of queue related fields.
+ * @pvr_dev: The device to cleanup.
+ *
+ * Cleanup/free all queue-related resources attached to a pvr_device object.
+ */
+void pvr_queue_device_fini(struct pvr_device *pvr_dev)
+{
+ destroy_workqueue(pvr_dev->sched_wq);
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#ifndef PVR_QUEUE_H
+#define PVR_QUEUE_H
+
+#include <drm/gpu_scheduler.h>
+
+#include "pvr_cccb.h"
+#include "pvr_device.h"
+
+struct pvr_context;
+struct pvr_queue;
+
+/**
+ * struct pvr_queue_fence_ctx - Queue fence context
+ *
+ * Used to implement dma_fence_ops for pvr_job::{done,cccb}_fence.
+ */
+struct pvr_queue_fence_ctx {
+ /** @id: Fence context ID allocated with dma_fence_context_alloc(). */
+ u64 id;
+
+ /** @seqno: Sequence number incremented each time a fence is created. */
+ atomic_t seqno;
+
+ /** @lock: Lock used to synchronize access to fences allocated by this context. */
+ spinlock_t lock;
+};
+
+/**
+ * struct pvr_queue_cccb_fence_ctx - CCCB fence context
+ *
+ * Context used to manage fences controlling access to the CCCB. No fences are
+ * issued if there's enough space in the CCCB to push job commands.
+ */
+struct pvr_queue_cccb_fence_ctx {
+ /** @base: Base queue fence context. */
+ struct pvr_queue_fence_ctx base;
+
+ /**
+ * @job: Job waiting for CCCB space.
+ *
+ * Thanks to the serializationg done at the drm_sched_entity level,
+ * there's no more than one job waiting for CCCB at a given time.
+ *
+ * This field is NULL if no jobs are currently waiting for CCCB space.
+ *
+ * Must be accessed with @job_lock held.
+ */
+ struct pvr_job *job;
+
+ /** @lock: Lock protecting access to the job object. */
+ struct mutex job_lock;
+};
+
+/**
+ * struct pvr_queue_fence - Queue fence object
+ */
+struct pvr_queue_fence {
+ /** @base: Base dma_fence. */
+ struct dma_fence base;
+
+ /** @queue: Queue that created this fence. */
+ struct pvr_queue *queue;
+};
+
+/**
+ * struct pvr_queue - Job queue
+ *
+ * Used to queue and track execution of pvr_job objects.
+ */
+struct pvr_queue {
+ /** @scheduler: Single entity scheduler use to push jobs to this queue. */
+ struct drm_gpu_scheduler scheduler;
+
+ /** @entity: Scheduling entity backing this queue. */
+ struct drm_sched_entity entity;
+
+ /** @type: Type of jobs queued to this queue. */
+ enum drm_pvr_job_type type;
+
+ /** @ctx: Context object this queue is bound to. */
+ struct pvr_context *ctx;
+
+ /** @node: Used to add the queue to the active/idle queue list. */
+ struct list_head node;
+
+ /**
+ * @in_flight_job_count: Number of jobs submitted to the CCCB that
+ * have not been processed yet.
+ */
+ atomic_t in_flight_job_count;
+
+ /**
+ * @cccb_fence_ctx: CCCB fence context.
+ *
+ * Used to control access to the CCCB is full, such that we don't
+ * end up trying to push commands to the CCCB if there's not enough
+ * space to receive all commands needed for a job to complete.
+ */
+ struct pvr_queue_cccb_fence_ctx cccb_fence_ctx;
+
+ /** @job_fence_ctx: Job fence context object. */
+ struct pvr_queue_fence_ctx job_fence_ctx;
+
+ /** @timeline_ufo: Timeline UFO for the context queue. */
+ struct {
+ /** @fw_obj: FW object representing the UFO value. */
+ struct pvr_fw_object *fw_obj;
+
+ /** @value: CPU mapping of the UFO value. */
+ u32 *value;
+ } timeline_ufo;
+
+ /**
+ * last_queued_job_scheduled_fence: The scheduled fence of the last
+ * job queued to this queue.
+ *
+ * We use it to insert frag -> geom dependencies when issuing combined
+ * geom+frag jobs, to guarantee that the fragment job that's part of
+ * the combined operation comes after all fragment jobs that were queued
+ * before it.
+ */
+ struct dma_fence *last_queued_job_scheduled_fence;
+
+ /** @cccb: Client Circular Command Buffer. */
+ struct pvr_cccb cccb;
+
+ /** @reg_state_obj: FW object representing the register state of this queue. */
+ struct pvr_fw_object *reg_state_obj;
+
+ /** @ctx_offset: Offset of the queue context in the FW context object. */
+ u32 ctx_offset;
+
+ /** @callstack_addr: Initial call stack address for register state object. */
+ u64 callstack_addr;
+};
+
+bool pvr_queue_fence_is_ufo_backed(struct dma_fence *f);
+
+int pvr_queue_job_init(struct pvr_job *job);
+
+void pvr_queue_job_cleanup(struct pvr_job *job);
+
+void pvr_queue_job_push(struct pvr_job *job);
+
+struct dma_fence *pvr_queue_job_arm(struct pvr_job *job);
+
+struct pvr_queue *pvr_queue_create(struct pvr_context *ctx,
+ enum drm_pvr_job_type type,
+ struct drm_pvr_ioctl_create_context_args *args,
+ void *fw_ctx_map);
+
+void pvr_queue_kill(struct pvr_queue *queue);
+
+void pvr_queue_destroy(struct pvr_queue *queue);
+
+void pvr_queue_process(struct pvr_queue *queue);
+
+void pvr_queue_device_pre_reset(struct pvr_device *pvr_dev);
+
+void pvr_queue_device_post_reset(struct pvr_device *pvr_dev);
+
+int pvr_queue_device_init(struct pvr_device *pvr_dev);
+
+void pvr_queue_device_fini(struct pvr_device *pvr_dev);
+
+#endif /* PVR_QUEUE_H */
* existing parameters, to preserve order. As parameters are naturally aligned, care must be taken
* with respect to implicit padding in the stream; padding should be minimised as much as possible.
*/
+static const struct pvr_stream_def rogue_fwif_cmd_geom_stream[] = {
+ PVR_STREAM_DEF(rogue_fwif_cmd_geom, regs.vdm_ctrl_stream_base, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_geom, regs.tpu_border_colour_table, 64),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_geom, regs.vdm_draw_indirect0, 64,
+ PVR_FEATURE_VDM_DRAWINDIRECT),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_geom, regs.vdm_draw_indirect1, 32,
+ PVR_FEATURE_VDM_DRAWINDIRECT),
+ PVR_STREAM_DEF(rogue_fwif_cmd_geom, regs.ppp_ctrl, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_geom, regs.te_psg, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_geom, regs.vdm_context_resume_task0_size, 32),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_geom, regs.vdm_context_resume_task3_size, 32,
+ PVR_FEATURE_VDM_OBJECT_LEVEL_LLS),
+ PVR_STREAM_DEF(rogue_fwif_cmd_geom, regs.view_idx, 32),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_geom, regs.pds_coeff_free_prog, 32,
+ PVR_FEATURE_TESSELLATION),
+};
+
+static const struct pvr_stream_def rogue_fwif_cmd_geom_stream_brn49927[] = {
+ PVR_STREAM_DEF(rogue_fwif_cmd_geom, regs.tpu, 32),
+};
+
+static const struct pvr_stream_ext_def cmd_geom_ext_streams_0[] = {
+ {
+ .stream = rogue_fwif_cmd_geom_stream_brn49927,
+ .stream_len = ARRAY_SIZE(rogue_fwif_cmd_geom_stream_brn49927),
+ .header_mask = PVR_STREAM_EXTHDR_GEOM0_BRN49927,
+ .quirk = 49927,
+ },
+};
+
+static const struct pvr_stream_ext_header cmd_geom_ext_headers[] = {
+ {
+ .ext_streams = cmd_geom_ext_streams_0,
+ .ext_streams_num = ARRAY_SIZE(cmd_geom_ext_streams_0),
+ .valid_mask = PVR_STREAM_EXTHDR_GEOM0_VALID,
+ },
+};
+
+const struct pvr_stream_cmd_defs pvr_cmd_geom_stream = {
+ .type = PVR_STREAM_TYPE_GEOM,
+
+ .main_stream = rogue_fwif_cmd_geom_stream,
+ .main_stream_len = ARRAY_SIZE(rogue_fwif_cmd_geom_stream),
+
+ .ext_nr_headers = ARRAY_SIZE(cmd_geom_ext_headers),
+ .ext_headers = cmd_geom_ext_headers,
+
+ .dest_size = sizeof(struct rogue_fwif_cmd_geom),
+};
+
+static const struct pvr_stream_def rogue_fwif_cmd_frag_stream[] = {
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_scissor_base, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_dbias_base, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_oclqry_base, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_zlsctl, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_zload_store_base, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_stencil_load_store_base, 64),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_frag, regs.fb_cdc_zls, 64,
+ PVR_FEATURE_REQUIRES_FB_CDC_ZLS_SETUP),
+ PVR_STREAM_DEF_ARRAY(rogue_fwif_cmd_frag, regs.pbe_word),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.tpu_border_colour_table, 64),
+ PVR_STREAM_DEF_ARRAY(rogue_fwif_cmd_frag, regs.pds_bgnd),
+ PVR_STREAM_DEF_ARRAY(rogue_fwif_cmd_frag, regs.pds_pr_bgnd),
+ PVR_STREAM_DEF_ARRAY(rogue_fwif_cmd_frag, regs.usc_clear_register),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.usc_pixel_output_ctrl, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_bgobjdepth, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_bgobjvals, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_aa, 32),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_frag, regs.isp_xtp_pipe_enable, 32,
+ PVR_FEATURE_S7_TOP_INFRASTRUCTURE),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_ctl, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.event_pixel_pds_info, 32),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_frag, regs.pixel_phantom, 32,
+ PVR_FEATURE_CLUSTER_GROUPING),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.view_idx, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.event_pixel_pds_data, 32),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_frag, regs.isp_oclqry_stride, 32,
+ PVR_FEATURE_GPU_MULTICORE_SUPPORT),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_frag, regs.isp_zls_pixels, 32,
+ PVR_FEATURE_ZLS_SUBTILE),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_frag, regs.rgx_cr_blackpearl_fix, 32,
+ PVR_FEATURE_ISP_ZLS_D24_S8_PACKING_OGL_MODE),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, zls_stride, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, sls_stride, 32),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_frag, execute_count, 32,
+ PVR_FEATURE_GPU_MULTICORE_SUPPORT),
+};
+
+static const struct pvr_stream_def rogue_fwif_cmd_frag_stream_brn47217[] = {
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.isp_oclqry_stride, 32),
+};
+
+static const struct pvr_stream_def rogue_fwif_cmd_frag_stream_brn49927[] = {
+ PVR_STREAM_DEF(rogue_fwif_cmd_frag, regs.tpu, 32),
+};
+
+static const struct pvr_stream_ext_def cmd_frag_ext_streams_0[] = {
+ {
+ .stream = rogue_fwif_cmd_frag_stream_brn47217,
+ .stream_len = ARRAY_SIZE(rogue_fwif_cmd_frag_stream_brn47217),
+ .header_mask = PVR_STREAM_EXTHDR_FRAG0_BRN47217,
+ .quirk = 47217,
+ },
+ {
+ .stream = rogue_fwif_cmd_frag_stream_brn49927,
+ .stream_len = ARRAY_SIZE(rogue_fwif_cmd_frag_stream_brn49927),
+ .header_mask = PVR_STREAM_EXTHDR_FRAG0_BRN49927,
+ .quirk = 49927,
+ },
+};
+
+static const struct pvr_stream_ext_header cmd_frag_ext_headers[] = {
+ {
+ .ext_streams = cmd_frag_ext_streams_0,
+ .ext_streams_num = ARRAY_SIZE(cmd_frag_ext_streams_0),
+ .valid_mask = PVR_STREAM_EXTHDR_FRAG0_VALID,
+ },
+};
+
+const struct pvr_stream_cmd_defs pvr_cmd_frag_stream = {
+ .type = PVR_STREAM_TYPE_FRAG,
+
+ .main_stream = rogue_fwif_cmd_frag_stream,
+ .main_stream_len = ARRAY_SIZE(rogue_fwif_cmd_frag_stream),
+
+ .ext_nr_headers = ARRAY_SIZE(cmd_frag_ext_headers),
+ .ext_headers = cmd_frag_ext_headers,
+
+ .dest_size = sizeof(struct rogue_fwif_cmd_frag),
+};
+
+static const struct pvr_stream_def rogue_fwif_cmd_compute_stream[] = {
+ PVR_STREAM_DEF(rogue_fwif_cmd_compute, regs.tpu_border_colour_table, 64),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_compute, regs.cdm_cb_queue, 64,
+ PVR_FEATURE_CDM_USER_MODE_QUEUE),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_compute, regs.cdm_cb_base, 64,
+ PVR_FEATURE_CDM_USER_MODE_QUEUE),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_compute, regs.cdm_cb, 64,
+ PVR_FEATURE_CDM_USER_MODE_QUEUE),
+ PVR_STREAM_DEF_NOT_FEATURE(rogue_fwif_cmd_compute, regs.cdm_ctrl_stream_base, 64,
+ PVR_FEATURE_CDM_USER_MODE_QUEUE),
+ PVR_STREAM_DEF(rogue_fwif_cmd_compute, regs.cdm_context_state_base_addr, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_compute, regs.cdm_resume_pds1, 32),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_compute, regs.cdm_item, 32,
+ PVR_FEATURE_COMPUTE_MORTON_CAPABLE),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_compute, regs.compute_cluster, 32,
+ PVR_FEATURE_CLUSTER_GROUPING),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_compute, regs.tpu_tag_cdm_ctrl, 32,
+ PVR_FEATURE_TPU_DM_GLOBAL_REGISTERS),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_compute, stream_start_offset, 32,
+ PVR_FEATURE_CDM_USER_MODE_QUEUE),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_compute, execute_count, 32,
+ PVR_FEATURE_GPU_MULTICORE_SUPPORT),
+};
+
+static const struct pvr_stream_def rogue_fwif_cmd_compute_stream_brn49927[] = {
+ PVR_STREAM_DEF(rogue_fwif_cmd_compute, regs.tpu, 32),
+};
+
+static const struct pvr_stream_ext_def cmd_compute_ext_streams_0[] = {
+ {
+ .stream = rogue_fwif_cmd_compute_stream_brn49927,
+ .stream_len = ARRAY_SIZE(rogue_fwif_cmd_compute_stream_brn49927),
+ .header_mask = PVR_STREAM_EXTHDR_COMPUTE0_BRN49927,
+ .quirk = 49927,
+ },
+};
+
+static const struct pvr_stream_ext_header cmd_compute_ext_headers[] = {
+ {
+ .ext_streams = cmd_compute_ext_streams_0,
+ .ext_streams_num = ARRAY_SIZE(cmd_compute_ext_streams_0),
+ .valid_mask = PVR_STREAM_EXTHDR_COMPUTE0_VALID,
+ },
+};
+
+const struct pvr_stream_cmd_defs pvr_cmd_compute_stream = {
+ .type = PVR_STREAM_TYPE_COMPUTE,
+
+ .main_stream = rogue_fwif_cmd_compute_stream,
+ .main_stream_len = ARRAY_SIZE(rogue_fwif_cmd_compute_stream),
+
+ .ext_nr_headers = ARRAY_SIZE(cmd_compute_ext_headers),
+ .ext_headers = cmd_compute_ext_headers,
+
+ .dest_size = sizeof(struct rogue_fwif_cmd_compute),
+};
+
+static const struct pvr_stream_def rogue_fwif_cmd_transfer_stream[] = {
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.pds_bgnd0_base, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.pds_bgnd1_base, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.pds_bgnd3_sizeinfo, 64),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.isp_mtile_base, 64),
+ PVR_STREAM_DEF_ARRAY(rogue_fwif_cmd_transfer, regs.pbe_wordx_mrty),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.isp_bgobjvals, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.usc_pixel_output_ctrl, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.usc_clear_register0, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.usc_clear_register1, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.usc_clear_register2, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.usc_clear_register3, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.isp_mtile_size, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.isp_render_origin, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.isp_ctl, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.isp_aa, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.event_pixel_pds_info, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.event_pixel_pds_code, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.event_pixel_pds_data, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.isp_render, 32),
+ PVR_STREAM_DEF(rogue_fwif_cmd_transfer, regs.isp_rgn, 32),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_transfer, regs.isp_xtp_pipe_enable, 32,
+ PVR_FEATURE_S7_TOP_INFRASTRUCTURE),
+ PVR_STREAM_DEF_FEATURE(rogue_fwif_cmd_transfer, regs.frag_screen, 32,
+ PVR_FEATURE_GPU_MULTICORE_SUPPORT),
+};
+
+const struct pvr_stream_cmd_defs pvr_cmd_transfer_stream = {
+ .type = PVR_STREAM_TYPE_TRANSFER,
+
+ .main_stream = rogue_fwif_cmd_transfer_stream,
+ .main_stream_len = ARRAY_SIZE(rogue_fwif_cmd_transfer_stream),
+
+ .ext_nr_headers = 0,
+
+ .dest_size = sizeof(struct rogue_fwif_cmd_transfer),
+};
+
static const struct pvr_stream_def rogue_fwif_static_render_context_state_stream[] = {
PVR_STREAM_DEF(rogue_fwif_geom_registers_caswitch,
geom_reg_vdm_context_state_base_addr, 64),
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0-only OR MIT
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#include <uapi/drm/pvr_drm.h>
+
+#include <drm/drm_syncobj.h>
+#include <drm/gpu_scheduler.h>
+#include <linux/xarray.h>
+#include <linux/dma-fence-unwrap.h>
+
+#include "pvr_device.h"
+#include "pvr_queue.h"
+#include "pvr_sync.h"
+
+static int
+pvr_check_sync_op(const struct drm_pvr_sync_op *sync_op)
+{
+ u8 handle_type;
+
+ if (sync_op->flags & ~DRM_PVR_SYNC_OP_FLAGS_MASK)
+ return -EINVAL;
+
+ handle_type = sync_op->flags & DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_MASK;
+ if (handle_type != DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_SYNCOBJ &&
+ handle_type != DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_TIMELINE_SYNCOBJ)
+ return -EINVAL;
+
+ if (handle_type == DRM_PVR_SYNC_OP_FLAG_HANDLE_TYPE_SYNCOBJ &&
+ sync_op->value != 0)
+ return -EINVAL;
+
+ return 0;
+}
+
+static void
+pvr_sync_signal_free(struct pvr_sync_signal *sig_sync)
+{
+ if (!sig_sync)
+ return;
+
+ drm_syncobj_put(sig_sync->syncobj);
+ dma_fence_chain_free(sig_sync->chain);
+ dma_fence_put(sig_sync->fence);
+ kfree(sig_sync);
+}
+
+void
+pvr_sync_signal_array_cleanup(struct xarray *array)
+{
+ struct pvr_sync_signal *sig_sync;
+ unsigned long i;
+
+ xa_for_each(array, i, sig_sync)
+ pvr_sync_signal_free(sig_sync);
+
+ xa_destroy(array);
+}
+
+static struct pvr_sync_signal *
+pvr_sync_signal_array_add(struct xarray *array, struct drm_file *file, u32 handle, u64 point)
+{
+ struct pvr_sync_signal *sig_sync;
+ struct dma_fence *cur_fence;
+ int err;
+ u32 id;
+
+ sig_sync = kzalloc(sizeof(*sig_sync), GFP_KERNEL);
+ if (!sig_sync)
+ return ERR_PTR(-ENOMEM);
+
+ sig_sync->handle = handle;
+ sig_sync->point = point;
+
+ if (point > 0) {
+ sig_sync->chain = dma_fence_chain_alloc();
+ if (!sig_sync->chain) {
+ err = -ENOMEM;
+ goto err_free_sig_sync;
+ }
+ }
+
+ sig_sync->syncobj = drm_syncobj_find(file, handle);
+ if (!sig_sync->syncobj) {
+ err = -EINVAL;
+ goto err_free_sig_sync;
+ }
+
+ /* Retrieve the current fence attached to that point. It's
+ * perfectly fine to get a NULL fence here, it just means there's
+ * no fence attached to that point yet.
+ */
+ if (!drm_syncobj_find_fence(file, handle, point, 0, &cur_fence))
+ sig_sync->fence = cur_fence;
+
+ err = xa_alloc(array, &id, sig_sync, xa_limit_32b, GFP_KERNEL);
+ if (err)
+ goto err_free_sig_sync;
+
+ return sig_sync;
+
+err_free_sig_sync:
+ pvr_sync_signal_free(sig_sync);
+ return ERR_PTR(err);
+}
+
+static struct pvr_sync_signal *
+pvr_sync_signal_array_search(struct xarray *array, u32 handle, u64 point)
+{
+ struct pvr_sync_signal *sig_sync;
+ unsigned long i;
+
+ xa_for_each(array, i, sig_sync) {
+ if (handle == sig_sync->handle && point == sig_sync->point)
+ return sig_sync;
+ }
+
+ return NULL;
+}
+
+static struct pvr_sync_signal *
+pvr_sync_signal_array_get(struct xarray *array, struct drm_file *file, u32 handle, u64 point)
+{
+ struct pvr_sync_signal *sig_sync;
+
+ sig_sync = pvr_sync_signal_array_search(array, handle, point);
+ if (sig_sync)
+ return sig_sync;
+
+ return pvr_sync_signal_array_add(array, file, handle, point);
+}
+
+int
+pvr_sync_signal_array_collect_ops(struct xarray *array,
+ struct drm_file *file,
+ u32 sync_op_count,
+ const struct drm_pvr_sync_op *sync_ops)
+{
+ for (u32 i = 0; i < sync_op_count; i++) {
+ struct pvr_sync_signal *sig_sync;
+ int ret;
+
+ if (!(sync_ops[i].flags & DRM_PVR_SYNC_OP_FLAG_SIGNAL))
+ continue;
+
+ ret = pvr_check_sync_op(&sync_ops[i]);
+ if (ret)
+ return ret;
+
+ sig_sync = pvr_sync_signal_array_get(array, file,
+ sync_ops[i].handle,
+ sync_ops[i].value);
+ if (IS_ERR(sig_sync))
+ return PTR_ERR(sig_sync);
+ }
+
+ return 0;
+}
+
+int
+pvr_sync_signal_array_update_fences(struct xarray *array,
+ u32 sync_op_count,
+ const struct drm_pvr_sync_op *sync_ops,
+ struct dma_fence *done_fence)
+{
+ for (u32 i = 0; i < sync_op_count; i++) {
+ struct dma_fence *old_fence;
+ struct pvr_sync_signal *sig_sync;
+
+ if (!(sync_ops[i].flags & DRM_PVR_SYNC_OP_FLAG_SIGNAL))
+ continue;
+
+ sig_sync = pvr_sync_signal_array_search(array, sync_ops[i].handle,
+ sync_ops[i].value);
+ if (WARN_ON(!sig_sync))
+ return -EINVAL;
+
+ old_fence = sig_sync->fence;
+ sig_sync->fence = dma_fence_get(done_fence);
+ dma_fence_put(old_fence);
+
+ if (WARN_ON(!sig_sync->fence))
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+void
+pvr_sync_signal_array_push_fences(struct xarray *array)
+{
+ struct pvr_sync_signal *sig_sync;
+ unsigned long i;
+
+ xa_for_each(array, i, sig_sync) {
+ if (sig_sync->chain) {
+ drm_syncobj_add_point(sig_sync->syncobj, sig_sync->chain,
+ sig_sync->fence, sig_sync->point);
+ sig_sync->chain = NULL;
+ } else {
+ drm_syncobj_replace_fence(sig_sync->syncobj, sig_sync->fence);
+ }
+ }
+}
+
+static int
+pvr_sync_add_dep_to_job(struct drm_sched_job *job, struct dma_fence *f)
+{
+ struct dma_fence_unwrap iter;
+ u32 native_fence_count = 0;
+ struct dma_fence *uf;
+ int err = 0;
+
+ dma_fence_unwrap_for_each(uf, &iter, f) {
+ if (pvr_queue_fence_is_ufo_backed(uf))
+ native_fence_count++;
+ }
+
+ /* No need to unwrap the fence if it's fully non-native. */
+ if (!native_fence_count)
+ return drm_sched_job_add_dependency(job, f);
+
+ dma_fence_unwrap_for_each(uf, &iter, f) {
+ /* There's no dma_fence_unwrap_stop() helper cleaning up the refs
+ * owned by dma_fence_unwrap(), so let's just iterate over all
+ * entries without doing anything when something failed.
+ */
+ if (err)
+ continue;
+
+ if (pvr_queue_fence_is_ufo_backed(uf)) {
+ struct drm_sched_fence *s_fence = to_drm_sched_fence(uf);
+
+ /* If this is a native dependency, we wait for the scheduled fence,
+ * and we will let pvr_queue_run_job() issue FW waits.
+ */
+ err = drm_sched_job_add_dependency(job,
+ dma_fence_get(&s_fence->scheduled));
+ } else {
+ err = drm_sched_job_add_dependency(job, dma_fence_get(uf));
+ }
+ }
+
+ dma_fence_put(f);
+ return err;
+}
+
+int
+pvr_sync_add_deps_to_job(struct pvr_file *pvr_file, struct drm_sched_job *job,
+ u32 sync_op_count,
+ const struct drm_pvr_sync_op *sync_ops,
+ struct xarray *signal_array)
+{
+ int err = 0;
+
+ if (!sync_op_count)
+ return 0;
+
+ for (u32 i = 0; i < sync_op_count; i++) {
+ struct pvr_sync_signal *sig_sync;
+ struct dma_fence *fence;
+
+ if (sync_ops[i].flags & DRM_PVR_SYNC_OP_FLAG_SIGNAL)
+ continue;
+
+ err = pvr_check_sync_op(&sync_ops[i]);
+ if (err)
+ return err;
+
+ sig_sync = pvr_sync_signal_array_search(signal_array, sync_ops[i].handle,
+ sync_ops[i].value);
+ if (sig_sync) {
+ if (WARN_ON(!sig_sync->fence))
+ return -EINVAL;
+
+ fence = dma_fence_get(sig_sync->fence);
+ } else {
+ err = drm_syncobj_find_fence(from_pvr_file(pvr_file), sync_ops[i].handle,
+ sync_ops[i].value, 0, &fence);
+ if (err)
+ return err;
+ }
+
+ err = pvr_sync_add_dep_to_job(job, fence);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0-only OR MIT */
+/* Copyright (c) 2023 Imagination Technologies Ltd. */
+
+#ifndef PVR_SYNC_H
+#define PVR_SYNC_H
+
+#include <uapi/drm/pvr_drm.h>
+
+/* Forward declaration from <linux/xarray.h>. */
+struct xarray;
+
+/* Forward declaration from <drm/drm_file.h>. */
+struct drm_file;
+
+/* Forward declaration from <drm/gpu_scheduler.h>. */
+struct drm_sched_job;
+
+/* Forward declaration from "pvr_device.h". */
+struct pvr_file;
+
+/**
+ * struct pvr_sync_signal - Object encoding a syncobj signal operation
+ *
+ * The job submission logic collects all signal operations in an array of
+ * pvr_sync_signal objects. This array also serves as a cache to get the
+ * latest dma_fence when multiple jobs are submitted at once, and one job
+ * signals a syncobj point that's later waited on by a subsequent job.
+ */
+struct pvr_sync_signal {
+ /** @handle: Handle of the syncobj to signal. */
+ u32 handle;
+
+ /**
+ * @point: Point to signal in the syncobj.
+ *
+ * Only relevant for timeline syncobjs.
+ */
+ u64 point;
+
+ /** @syncobj: Syncobj retrieved from the handle. */
+ struct drm_syncobj *syncobj;
+
+ /**
+ * @chain: Chain object used to link the new fence with the
+ * existing timeline syncobj.
+ *
+ * Should be zero when manipulating a regular syncobj.
+ */
+ struct dma_fence_chain *chain;
+
+ /**
+ * @fence: New fence object to attach to the syncobj.
+ *
+ * This pointer starts with the current fence bound to
+ * the <handle,point> pair.
+ */
+ struct dma_fence *fence;
+};
+
+void
+pvr_sync_signal_array_cleanup(struct xarray *array);
+
+int
+pvr_sync_signal_array_collect_ops(struct xarray *array,
+ struct drm_file *file,
+ u32 sync_op_count,
+ const struct drm_pvr_sync_op *sync_ops);
+
+int
+pvr_sync_signal_array_update_fences(struct xarray *array,
+ u32 sync_op_count,
+ const struct drm_pvr_sync_op *sync_ops,
+ struct dma_fence *done_fence);
+
+void
+pvr_sync_signal_array_push_fences(struct xarray *array);
+
+int
+pvr_sync_add_deps_to_job(struct pvr_file *pvr_file, struct drm_sched_job *job,
+ u32 sync_op_count,
+ const struct drm_pvr_sync_op *sync_ops,
+ struct xarray *signal_array);
+
+#endif /* PVR_SYNC_H */
projects / users / hch / misc.git / commitdiff