Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 357 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
new file mode 100644
index 0000000000..78476bc75b
--- /dev/null
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_job.c
@@ -0,0 +1,357 @@
+/*
+ * Copyright 2015 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ *
+ */
+#include <linux/kthread.h>
+#include <linux/wait.h>
+#include <linux/sched.h>
+
+#include <drm/drm_drv.h>
+
+#include "amdgpu.h"
+#include "amdgpu_trace.h"
+#include "amdgpu_reset.h"
+
+static enum drm_gpu_sched_stat amdgpu_job_timedout(struct drm_sched_job *s_job)
+{
+	struct amdgpu_ring *ring = to_amdgpu_ring(s_job->sched);
+	struct amdgpu_job *job = to_amdgpu_job(s_job);
+	struct amdgpu_task_info ti;
+	struct amdgpu_device *adev = ring->adev;
+	int idx;
+	int r;
+
+	if (!drm_dev_enter(adev_to_drm(adev), &idx)) {
+		DRM_INFO("%s - device unplugged skipping recovery on scheduler:%s",
+			 __func__, s_job->sched->name);
+
+		/* Effectively the job is aborted as the device is gone */
+		return DRM_GPU_SCHED_STAT_ENODEV;
+	}
+
+	memset(&ti, 0, sizeof(struct amdgpu_task_info));
+	adev->job_hang = true;
+
+	if (amdgpu_gpu_recovery &&
+	    amdgpu_ring_soft_recovery(ring, job->vmid, s_job->s_fence->parent)) {
+		DRM_ERROR("ring %s timeout, but soft recovered\n",
+			  s_job->sched->name);
+		goto exit;
+	}
+
+	amdgpu_vm_get_task_info(ring->adev, job->pasid, &ti);
+	DRM_ERROR("ring %s timeout, signaled seq=%u, emitted seq=%u\n",
+		  job->base.sched->name, atomic_read(&ring->fence_drv.last_seq),
+		  ring->fence_drv.sync_seq);
+	DRM_ERROR("Process information: process %s pid %d thread %s pid %d\n",
+		  ti.process_name, ti.tgid, ti.task_name, ti.pid);
+
+	dma_fence_set_error(&s_job->s_fence->finished, -ETIME);
+
+	if (amdgpu_device_should_recover_gpu(ring->adev)) {
+		struct amdgpu_reset_context reset_context;
+		memset(&reset_context, 0, sizeof(reset_context));
+
+		reset_context.method = AMD_RESET_METHOD_NONE;
+		reset_context.reset_req_dev = adev;
+		clear_bit(AMDGPU_NEED_FULL_RESET, &reset_context.flags);
+
+		r = amdgpu_device_gpu_recover(ring->adev, job, &reset_context);
+		if (r)
+			DRM_ERROR("GPU Recovery Failed: %d\n", r);
+	} else {
+		drm_sched_suspend_timeout(&ring->sched);
+		if (amdgpu_sriov_vf(adev))
+			adev->virt.tdr_debug = true;
+	}
+
+exit:
+	adev->job_hang = false;
+	drm_dev_exit(idx);
+	return DRM_GPU_SCHED_STAT_NOMINAL;
+}
+
+int amdgpu_job_alloc(struct amdgpu_device *adev, struct amdgpu_vm *vm,
+		     struct drm_sched_entity *entity, void *owner,
+		     unsigned int num_ibs, struct amdgpu_job **job)
+{
+	if (num_ibs == 0)
+		return -EINVAL;
+
+	*job = kzalloc(struct_size(*job, ibs, num_ibs), GFP_KERNEL);
+	if (!*job)
+		return -ENOMEM;
+
+	/*
+	 * Initialize the scheduler to at least some ring so that we always
+	 * have a pointer to adev.
+	 */
+	(*job)->base.sched = &adev->rings[0]->sched;
+	(*job)->vm = vm;
+
+	amdgpu_sync_create(&(*job)->explicit_sync);
+	(*job)->generation = amdgpu_vm_generation(adev, vm);
+	(*job)->vm_pd_addr = AMDGPU_BO_INVALID_OFFSET;
+
+	if (!entity)
+		return 0;
+
+	return drm_sched_job_init(&(*job)->base, entity, owner);
+}
+
+int amdgpu_job_alloc_with_ib(struct amdgpu_device *adev,
+			     struct drm_sched_entity *entity, void *owner,
+			     size_t size, enum amdgpu_ib_pool_type pool_type,
+			     struct amdgpu_job **job)
+{
+	int r;
+
+	r = amdgpu_job_alloc(adev, NULL, entity, owner, 1, job);
+	if (r)
+		return r;
+
+	(*job)->num_ibs = 1;
+	r = amdgpu_ib_get(adev, NULL, size, pool_type, &(*job)->ibs[0]);
+	if (r) {
+		if (entity)
+			drm_sched_job_cleanup(&(*job)->base);
+		kfree(*job);
+	}
+
+	return r;
+}
+
+void amdgpu_job_set_resources(struct amdgpu_job *job, struct amdgpu_bo *gds,
+			      struct amdgpu_bo *gws, struct amdgpu_bo *oa)
+{
+	if (gds) {
+		job->gds_base = amdgpu_bo_gpu_offset(gds) >> PAGE_SHIFT;
+		job->gds_size = amdgpu_bo_size(gds) >> PAGE_SHIFT;
+	}
+	if (gws) {
+		job->gws_base = amdgpu_bo_gpu_offset(gws) >> PAGE_SHIFT;
+		job->gws_size = amdgpu_bo_size(gws) >> PAGE_SHIFT;
+	}
+	if (oa) {
+		job->oa_base = amdgpu_bo_gpu_offset(oa) >> PAGE_SHIFT;
+		job->oa_size = amdgpu_bo_size(oa) >> PAGE_SHIFT;
+	}
+}
+
+void amdgpu_job_free_resources(struct amdgpu_job *job)
+{
+	struct amdgpu_ring *ring = to_amdgpu_ring(job->base.sched);
+	struct dma_fence *f;
+	unsigned i;
+
+	/* Check if any fences where initialized */
+	if (job->base.s_fence && job->base.s_fence->finished.ops)
+		f = &job->base.s_fence->finished;
+	else if (job->hw_fence.ops)
+		f = &job->hw_fence;
+	else
+		f = NULL;
+
+	for (i = 0; i < job->num_ibs; ++i)
+		amdgpu_ib_free(ring->adev, &job->ibs[i], f);
+}
+
+static void amdgpu_job_free_cb(struct drm_sched_job *s_job)
+{
+	struct amdgpu_job *job = to_amdgpu_job(s_job);
+
+	drm_sched_job_cleanup(s_job);
+
+	amdgpu_sync_free(&job->explicit_sync);
+
+	/* only put the hw fence if has embedded fence */
+	if (!job->hw_fence.ops)
+		kfree(job);
+	else
+		dma_fence_put(&job->hw_fence);
+}
+
+void amdgpu_job_set_gang_leader(struct amdgpu_job *job,
+				struct amdgpu_job *leader)
+{
+	struct dma_fence *fence = &leader->base.s_fence->scheduled;
+
+	WARN_ON(job->gang_submit);
+
+	/*
+	 * Don't add a reference when we are the gang leader to avoid circle
+	 * dependency.
+	 */
+	if (job != leader)
+		dma_fence_get(fence);
+	job->gang_submit = fence;
+}
+
+void amdgpu_job_free(struct amdgpu_job *job)
+{
+	if (job->base.entity)
+		drm_sched_job_cleanup(&job->base);
+
+	amdgpu_job_free_resources(job);
+	amdgpu_sync_free(&job->explicit_sync);
+	if (job->gang_submit != &job->base.s_fence->scheduled)
+		dma_fence_put(job->gang_submit);
+
+	if (!job->hw_fence.ops)
+		kfree(job);
+	else
+		dma_fence_put(&job->hw_fence);
+}
+
+struct dma_fence *amdgpu_job_submit(struct amdgpu_job *job)
+{
+	struct dma_fence *f;
+
+	drm_sched_job_arm(&job->base);
+	f = dma_fence_get(&job->base.s_fence->finished);
+	amdgpu_job_free_resources(job);
+	drm_sched_entity_push_job(&job->base);
+
+	return f;
+}
+
+int amdgpu_job_submit_direct(struct amdgpu_job *job, struct amdgpu_ring *ring,
+			     struct dma_fence **fence)
+{
+	int r;
+
+	job->base.sched = &ring->sched;
+	r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job, fence);
+
+	if (r)
+		return r;
+
+	amdgpu_job_free(job);
+	return 0;
+}
+
+static struct dma_fence *
+amdgpu_job_prepare_job(struct drm_sched_job *sched_job,
+		      struct drm_sched_entity *s_entity)
+{
+	struct amdgpu_ring *ring = to_amdgpu_ring(s_entity->rq->sched);
+	struct amdgpu_job *job = to_amdgpu_job(sched_job);
+	struct dma_fence *fence = NULL;
+	int r;
+
+	/* Ignore soft recovered fences here */
+	r = drm_sched_entity_error(s_entity);
+	if (r && r != -ENODATA)
+		goto error;
+
+	if (!fence && job->gang_submit)
+		fence = amdgpu_device_switch_gang(ring->adev, job->gang_submit);
+
+	while (!fence && job->vm && !job->vmid) {
+		r = amdgpu_vmid_grab(job->vm, ring, job, &fence);
+		if (r) {
+			DRM_ERROR("Error getting VM ID (%d)\n", r);
+			goto error;
+		}
+	}
+
+	return fence;
+
+error:
+	dma_fence_set_error(&job->base.s_fence->finished, r);
+	return NULL;
+}
+
+static struct dma_fence *amdgpu_job_run(struct drm_sched_job *sched_job)
+{
+	struct amdgpu_ring *ring = to_amdgpu_ring(sched_job->sched);
+	struct amdgpu_device *adev = ring->adev;
+	struct dma_fence *fence = NULL, *finished;
+	struct amdgpu_job *job;
+	int r = 0;
+
+	job = to_amdgpu_job(sched_job);
+	finished = &job->base.s_fence->finished;
+
+	trace_amdgpu_sched_run_job(job);
+
+	/* Skip job if VRAM is lost and never resubmit gangs */
+	if (job->generation != amdgpu_vm_generation(adev, job->vm) ||
+	    (job->job_run_counter && job->gang_submit))
+		dma_fence_set_error(finished, -ECANCELED);
+
+	if (finished->error < 0) {
+		DRM_INFO("Skip scheduling IBs!\n");
+	} else {
+		r = amdgpu_ib_schedule(ring, job->num_ibs, job->ibs, job,
+				       &fence);
+		if (r)
+			DRM_ERROR("Error scheduling IBs (%d)\n", r);
+	}
+
+	job->job_run_counter++;
+	amdgpu_job_free_resources(job);
+
+	fence = r ? ERR_PTR(r) : fence;
+	return fence;
+}
+
+#define to_drm_sched_job(sched_job)		\
+		container_of((sched_job), struct drm_sched_job, queue_node)
+
+void amdgpu_job_stop_all_jobs_on_sched(struct drm_gpu_scheduler *sched)
+{
+	struct drm_sched_job *s_job;
+	struct drm_sched_entity *s_entity = NULL;
+	int i;
+
+	/* Signal all jobs not yet scheduled */
+	for (i = DRM_SCHED_PRIORITY_COUNT - 1; i >= DRM_SCHED_PRIORITY_MIN; i--) {
+		struct drm_sched_rq *rq = &sched->sched_rq[i];
+		spin_lock(&rq->lock);
+		list_for_each_entry(s_entity, &rq->entities, list) {
+			while ((s_job = to_drm_sched_job(spsc_queue_pop(&s_entity->job_queue)))) {
+				struct drm_sched_fence *s_fence = s_job->s_fence;
+
+				dma_fence_signal(&s_fence->scheduled);
+				dma_fence_set_error(&s_fence->finished, -EHWPOISON);
+				dma_fence_signal(&s_fence->finished);
+			}
+		}
+		spin_unlock(&rq->lock);
+	}
+
+	/* Signal all jobs already scheduled to HW */
+	list_for_each_entry(s_job, &sched->pending_list, list) {
+		struct drm_sched_fence *s_fence = s_job->s_fence;
+
+		dma_fence_set_error(&s_fence->finished, -EHWPOISON);
+		dma_fence_signal(&s_fence->finished);
+	}
+}
+
+const struct drm_sched_backend_ops amdgpu_sched_ops = {
+	.prepare_job = amdgpu_job_prepare_job,
+	.run_job = amdgpu_job_run,
+	.timedout_job = amdgpu_job_timedout,
+	.free_job = amdgpu_job_free_cb
+};