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drm/amdgpu: defer test IBs on the rings at boot (V3)

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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@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Shirish S 2018-04-16 12:17:57 +05:30 committed by Alex Deucher
parent 5c3517d0c2
commit 2c773de2ec
2 changed files with 9 additions and 11 deletions
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15
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@ -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;
@ -1706,7 +1710,7 @@ static int amdgpu_device_ip_late_init(struct amdgpu_device *adev)
}
}
mod_delayed_work(system_wq, &adev->late_init_work,
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 @@ fence_driver_init:
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);
@ -2639,11 +2639,6 @@ 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)

3
drivers/gpu/drm/amd/amdgpu/amdgpu_kms.c
View File

@ -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;