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gpu: nvgpu: unit: improve coverage for quiesce

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Add more cases for branch coverage of the following functions:
- nvgpu_sw_quiesce
- nvgpu_sw_quiesce_init_support
- nvgpu_sw_quiesce_bug_cb

Add SWUTS steps for test_quiesce.

Jira NVGPU-4905

Change-Id: Ib14c03f30bb7556123faf4d49abf2b307b82014b
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2280610
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Philip Elcan <pelcan@nvidia.com>
Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Thomas Fleury
2020-01-17 12:32:35 -05:00
committed by Alex Waterman
parent 1f2f414fde
commit 726d2a8d4a
2 changed files with 62 additions and 4 deletions
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22
userspace/units/init/nvgpu-init.h
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@@ -307,15 +307,33 @@ int test_poweroff(struct unit_module *m, struct gk20a *g, void *args);
* Test Type: Feature
*
* Targets: nvgpu_sw_quiesce_init_support, nvgpu_sw_quiesce_remove_support,
* nvgpu_sw_quiesce_thread, nvgpu_sw_quiesce
* nvgpu_sw_quiesce_thread, nvgpu_sw_quiesce, nvgpu_sw_quiesce_bug_cb
*
* Input:
* - test_setup_env() must be called before.
*
* Steps:
* - Use stub for g->ops.mc.intr_mask, g->ops.runlist.write_state and
* g->ops.fifo.preempt_runlists_for_rc.
* - Call nvgpu_sw_quiesce, wait for SW quiesce threads to complete,
* and check that interrupts have been disabled.
* - Check SW quiesce invoked from BUG().
* - Check cases where nvgpu_sw_quiesce does not wake up threads:
* - NVGPU_DISABLE_SW_QUIESCE is set.
* - g->sw_quiesce_pending is already true.
* - g->sw_quiesce_init_done is false.
* - Check cases where nvgpu_sw_quiesce_thread skips quiescing:
* - nvgpu_thread_should_stop is true (using fault injection).
* - g->is_virtual is true.
* - g->powered_on is false.
* - Check failure cases in nvgpu_sw_quiesce_init_support:
* - sw_quiesce_cond initialization failure (using cond fault injection).
* - sw_quiesce already initialized.
* - sw_quiesce_thread creation failure (using thread fault injection).
* - sw_quiesce_wdog creation failure (using thread fault injection).
*
* Output:
* - UNIT_FAIL if nvgpu_finalize_poweron() ever returns the unexpected value.
* - UNIT_FAIL if SW quiesce did not behave as expected.
* - UNIT_SUCCESS otherwise
*/
int test_quiesce(struct unit_module *m, struct gk20a *g, void *args);