From e3de58f8fd5bda8685bb87bf7457bbc10479765b Mon Sep 17 00:00:00 2001 From: Rajneesh Bhardwaj Date: Wed, 31 Jan 2024 19:33:49 -0500 Subject: [PATCH] drm/amdkfd: update SIMD distribution algo for GFXIP 9.4.2 onwards In certain cooperative group dispatch scenarios the default SPI resource allocation may cause reduced per-CU workgroup occupancy. Set COMPUTE_RESOURCE_LIMITS.FORCE_SIMD_DIST=1 to mitigate soft hang scenarions. Reviewed-by: Felix Kuehling Suggested-by: Joseph Greathouse Signed-off-by: Rajneesh Bhardwaj Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c | 9 +++++++++ drivers/gpu/drm/amd/amdkfd/kfd_priv.h | 1 + drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c | 4 +++- 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c index 42d881809dc7..697b6d530d12 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_mqd_manager_v9.c @@ -303,6 +303,15 @@ static void update_mqd(struct mqd_manager *mm, void *mqd, update_cu_mask(mm, mqd, minfo, 0); set_priority(m, q); + if (minfo && KFD_GC_VERSION(mm->dev) >= IP_VERSION(9, 4, 2)) { + if (minfo->update_flag & UPDATE_FLAG_IS_GWS) + m->compute_resource_limits |= + COMPUTE_RESOURCE_LIMITS__FORCE_SIMD_DIST_MASK; + else + m->compute_resource_limits &= + ~COMPUTE_RESOURCE_LIMITS__FORCE_SIMD_DIST_MASK; + } + q->is_active = QUEUE_IS_ACTIVE(*q); } diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h index 677281c0793e..80320b8603fc 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_priv.h +++ b/drivers/gpu/drm/amd/amdkfd/kfd_priv.h @@ -532,6 +532,7 @@ struct queue_properties { enum mqd_update_flag { UPDATE_FLAG_DBG_WA_ENABLE = 1, UPDATE_FLAG_DBG_WA_DISABLE = 2, + UPDATE_FLAG_IS_GWS = 4, /* quirk for gfx9 IP */ }; struct mqd_update_info { diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c index 43eff221eae5..4858112f9a53 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_process_queue_manager.c @@ -95,6 +95,7 @@ void kfd_process_dequeue_from_device(struct kfd_process_device *pdd) int pqm_set_gws(struct process_queue_manager *pqm, unsigned int qid, void *gws) { + struct mqd_update_info minfo = {0}; struct kfd_node *dev = NULL; struct process_queue_node *pqn; struct kfd_process_device *pdd; @@ -146,9 +147,10 @@ int pqm_set_gws(struct process_queue_manager *pqm, unsigned int qid, } pdd->qpd.num_gws = gws ? dev->adev->gds.gws_size : 0; + minfo.update_flag = gws ? UPDATE_FLAG_IS_GWS : 0; return pqn->q->device->dqm->ops.update_queue(pqn->q->device->dqm, - pqn->q, NULL); + pqn->q, &minfo); } void kfd_process_dequeue_from_all_devices(struct kfd_process *p) -- 2.20.1