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gpu: nvgpu: unit: add tests for common.mm.vm_area

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Expand testing within commom.mm.vm to include vm_area as well since
those 2 units are very closely related.

JIRA NVGPU-909

Change-Id: Id9721bcf4bfdaf7f1a2711859ab2ac524c81e004
Signed-off-by: Nicolas Benech <nbenech@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2231656
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Nicolas Benech
2019-11-01 18:17:29 -04:00
committed by Alex Waterman
parent 767e505792
commit cb2170d3c8
3 changed files with 244 additions and 27 deletions
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44
userspace/units/mm/vm/vm.h
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@@ -306,6 +306,48 @@ int test_vm_bind(struct unit_module *m, struct gk20a *g, void *__args);
*/
int test_vm_aspace_id(struct unit_module *m, struct gk20a *g, void *__args);
/**
* Test specification for: test_vm_area_error_cases
*
* Description: This test targets the nvgpu_vm_area_validate_buffer and
* nvgpu_vm_area_alloc APIs.
*
* Test Type: Feature based, Error injection
*
* Input: None
*
* Steps:
* - Initialize a VM with the following characteristics:
* - 64KB large page support enabled
* - Low hole size = 64MB
* - Address space size = 128GB
* - Kernel reserved space size = 4GB
* - Try to validate a buffer of size 0 and ensure nvgpu_vm_area_validate_buffer
* returns -EINVAL.
* - Try to validate a buffer where the address to be mapped is not aligned to
* the page size and ensure that it returns -EINVAL.
* - Try to validate a buffer with a fixed address when the VM has no VM area
* and ensure that it returns -EINVAL.
* - Try to create a VM area with an invalid page size and ensure that
* nvgpu_vm_area_alloc returns -EINVAL.
* - Try to create a VM area with big page size in a VM that explicitly does
* not support big pages and ensure it returns -EINVAL.
* - Inject memory allocation errors to target various allocations within
* the nvgpu_vm_area_alloc (or its subfunctions) and ensure that it returns
* the -ENOMEM value.
* - Properly create a VM area and assign it to the test VM for the remainder
* of this test.
* - Try to validate a buffer where the mapped size is bigger than the VA space
* and ensure it returns -EINVAL.
* - Map a test buffer and ensure the mapping succeeded.
* - Try to validate the same, already mapped, test buffer and ensure that it
* returns -EINVAL.
* - Uninitialize the VM and VM area.
*
* Output: Returns PASS if the steps above were executed successfully. FAIL
* otherwise.
*/
int test_vm_area_error_cases(struct unit_module *m, struct gk20a *g,
void *__args);
/** }@ */
#endif /* UNIT_VM_H */