From a82918f18a846e4e2be8613029d03c3cb3e99460 Mon Sep 17 00:00:00 2001 From: Ben Goz Date: Wed, 25 Mar 2015 13:12:20 +0200 Subject: [PATCH] drm/amdkfd: make reset wavefronts per process per device This commit moves the reset wavefront flag to per process per device data structure, so we can support multiple devices. Signed-off-by: Ben Goz Signed-off-by: Oded Gabbay --- .../drm/amd/amdkfd/kfd_device_queue_manager.c | 7 ++++--- drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 10 ++++----- drivers/gpu/drm/amd/amdkfd/kfd_process.c | 21 ++++++++++++++----- 3 files changed, 25 insertions(+), 13 deletions(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c index 547b0a589693..4bb7f4223762 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -946,7 +946,7 @@ static int destroy_queues_cpsch(struct device_queue_manager *dqm, { int retval; enum kfd_preempt_type_filter preempt_type; - struct kfd_process *p; + struct kfd_process_device *pdd; BUG_ON(!dqm); @@ -981,8 +981,9 @@ static int destroy_queues_cpsch(struct device_queue_manager *dqm, retval = amdkfd_fence_wait_timeout(dqm->fence_addr, KFD_FENCE_COMPLETED, QUEUE_PREEMPT_DEFAULT_TIMEOUT_MS); if (retval != 0) { - p = kfd_get_process(current); - p->reset_wavefronts = true; + pdd = kfd_get_process_device_data(dqm->dev, + kfd_get_process(current)); + pdd->reset_wavefronts = true; goto out; } pm_release_ib(&dqm->packets); diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index cb79046e5c80..d0d5f4baf72d 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -463,6 +463,11 @@ struct kfd_process_device { /* Is this process/pasid bound to this device? (amd_iommu_bind_pasid) */ bool bound; + + /* This flag tells if we should reset all + * wavefronts on process termination + */ + bool reset_wavefronts; }; #define qpd_to_pdd(x) container_of(x, struct kfd_process_device, qpd) @@ -519,11 +524,6 @@ struct kfd_process { event_pages */ u32 next_nonsignal_event_id; size_t signal_event_count; - /* - * This flag tells if we should reset all wavefronts on - * process termination - */ - bool reset_wavefronts; }; /** diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process.c b/drivers/gpu/drm/amd/amdkfd/kfd_process.c index 56b904f5bdb1..8a1f999daa24 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process.c @@ -173,7 +173,7 @@ static void kfd_process_wq_release(struct work_struct *work) pr_debug("Releasing pdd (topology id %d) for process (pasid %d) in workqueue\n", pdd->dev->id, p->pasid); - if (p->reset_wavefronts) + if (pdd->reset_wavefronts) dbgdev_wave_reset_wavefronts(pdd->dev, p); amd_iommu_unbind_pasid(pdd->dev->pdev, p->pasid); @@ -222,6 +222,7 @@ static void kfd_process_notifier_release(struct mmu_notifier *mn, struct mm_struct *mm) { struct kfd_process *p; + struct kfd_process_device *pdd = NULL; /* * The kfd_process structure can not be free because the @@ -240,6 +241,15 @@ static void kfd_process_notifier_release(struct mmu_notifier *mn, /* In case our notifier is called before IOMMU notifier */ pqm_uninit(&p->pqm); + /* Iterate over all process device data structure and check + * if we should reset all wavefronts */ + list_for_each_entry(pdd, &p->per_device_data, per_device_list) + if (pdd->reset_wavefronts) { + pr_warn("amdkfd: Resetting all wave fronts\n"); + dbgdev_wave_reset_wavefronts(pdd->dev, p); + pdd->reset_wavefronts = false; + } + mutex_unlock(&p->mutex); /* @@ -305,8 +315,6 @@ static struct kfd_process *create_process(const struct task_struct *thread) if (kfd_init_apertures(process) != 0) goto err_init_apretures; - process->reset_wavefronts = false; - return process; err_init_apretures: @@ -348,6 +356,7 @@ struct kfd_process_device *kfd_create_process_device_data(struct kfd_dev *dev, INIT_LIST_HEAD(&pdd->qpd.queues_list); INIT_LIST_HEAD(&pdd->qpd.priv_queue_list); pdd->qpd.dqm = dev->dqm; + pdd->reset_wavefronts = false; list_add(&pdd->per_device_list, &p->per_device_data); } @@ -409,10 +418,12 @@ void kfd_unbind_process_from_device(struct kfd_dev *dev, unsigned int pasid) kfd_dbgmgr_destroy(dev->dbgmgr); pqm_uninit(&p->pqm); - if (p->reset_wavefronts) - dbgdev_wave_reset_wavefronts(dev, p); pdd = kfd_get_process_device_data(dev, p); + if (pdd->reset_wavefronts) { + dbgdev_wave_reset_wavefronts(pdd->dev, p); + pdd->reset_wavefronts = false; + } /* * Just mark pdd as unbound, because we still need it to call -- 2.30.2