amdgpu_ib_ring_tests() runs test IB's on rings at boot contributes to ~500 ms of amdgpu driver's boot time. This patch defers it and ensures that its executed in amdgpu_info_ioctl() if it wasn't scheduled. V2: Use queue_delayed_work() & flush_delayed_work(). V3: removed usage of separate wq, ensure ib tests is run before enabling clockgating. Signed-off-by: Shirish S <shirish.s at amd.com> --- drivers/gpu/drm/amd/amdgpu/amdgpu_device.c | 17 ++++++----------- drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c | 3 +++ 2 files changed, 9 insertions(+), 11 deletions(-) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c index 1762eb4..f225840 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c @@ -1656,6 +1656,10 @@ static int amdgpu_device_ip_late_set_cg_state(struct amdgpu_device *adev) if (amdgpu_emu_mode == 1) return 0; + r = amdgpu_ib_ring_tests(adev); + if (r) + DRM_ERROR("ib ring test failed (%d).\n", r); + for (i = 0; i < adev->num_ip_blocks; i++) { if (!adev->ip_blocks[i].status.valid) continue; @@ -1706,8 +1710,8 @@ static int amdgpu_device_ip_late_init(struct amdgpu_device *adev) } } - mod_delayed_work(system_wq, &adev->late_init_work, - msecs_to_jiffies(AMDGPU_RESUME_MS)); + queue_delayed_work(system_wq, &adev->late_init_work, + msecs_to_jiffies(AMDGPU_RESUME_MS)); amdgpu_device_fill_reset_magic(adev); @@ -2374,10 +2378,6 @@ int amdgpu_device_init(struct amdgpu_device *adev, goto failed; } - r = amdgpu_ib_ring_tests(adev); - if (r) - DRM_ERROR("ib ring test failed (%d).\n", r); - if (amdgpu_sriov_vf(adev)) amdgpu_virt_init_data_exchange(adev); @@ -2640,11 +2640,6 @@ int amdgpu_device_resume(struct drm_device *dev, bool resume, bool fbcon) amdgpu_fence_driver_resume(adev); - if (resume) { - r = amdgpu_ib_ring_tests(adev); - if (r) - DRM_ERROR("ib ring test failed (%d).\n", r); - } r = amdgpu_device_ip_late_init(adev); if (r) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c index 487d39e..83d7160 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c @@ -279,6 +279,9 @@ static int amdgpu_info_ioctl(struct drm_device *dev, void *data, struct drm_file if (!info->return_size || !info->return_pointer) return -EINVAL; + /* Ensure IB tests are run on ring */ + flush_delayed_work(&adev->late_init_work); + switch (info->query) { case AMDGPU_INFO_ACCEL_WORKING: ui32 = adev->accel_working; -- 2.7.4