For GFX9.4.3, setup a reduced default CWSR grace period equal to 1000 cycles instead of 64000 cycles.
Signed-off-by: Mukul Joshi <[email protected]> Reviewed-by: Felix Kuehling <[email protected]> --- .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c | 2 +- .../drm/amd/amdkfd/kfd_device_queue_manager.c | 22 ++++++++++++++++++- 2 files changed, 22 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c index 7b1eea493377..28963726bc97 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v9.c @@ -1109,7 +1109,7 @@ void kgd_gfx_v9_build_grace_period_packet_info(struct amdgpu_device *adev, *reg_data = wait_times; /* - * The CP cannont handle a 0 grace period input and will result in + * The CP cannot handle a 0 grace period input and will result in * an infinite grace period being set so set to 1 to prevent this. */ if (grace_period == 0) 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 de83eccdd9de..31cac1fd0d58 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_device_queue_manager.c @@ -1622,7 +1622,7 @@ static int initialize_cpsch(struct device_queue_manager *dqm) if (dqm->dev->kfd2kgd->get_iq_wait_times) dqm->dev->kfd2kgd->get_iq_wait_times(dqm->dev->adev, &dqm->wait_times, - 0); + ffs(dqm->dev->xcc_mask) - 1); return 0; } @@ -1664,6 +1664,26 @@ static int start_cpsch(struct device_queue_manager *dqm) if (!dqm->dev->kfd->shared_resources.enable_mes) execute_queues_cpsch(dqm, KFD_UNMAP_QUEUES_FILTER_DYNAMIC_QUEUES, 0, USE_DEFAULT_GRACE_PERIOD); + + /* Set CWSR grace period to 1x1000 cycle for GFX9.4.3 APU */ + if (amdgpu_emu_mode == 0 && dqm->dev->adev->gmc.is_app_apu && + (KFD_GC_VERSION(dqm->dev) == IP_VERSION(9, 4, 3))) { + uint32_t reg_offset = 0; + uint32_t grace_period = 1; + + retval = pm_update_grace_period(&dqm->packet_mgr, + grace_period); + if (retval) + pr_err("Setting grace timeout failed\n"); + else if (dqm->dev->kfd2kgd->build_grace_period_packet_info) + /* Update dqm->wait_times maintained in software */ + dqm->dev->kfd2kgd->build_grace_period_packet_info( + dqm->dev->adev, dqm->wait_times, + grace_period, ®_offset, + &dqm->wait_times, + ffs(dqm->dev->xcc_mask) - 1); + } + dqm_unlock(dqm); return 0; -- 2.35.1
