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gpu: nvgpu: unit: increase commom.mm test coverage

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This patch adds some corner cases tests to increase coverage.

JIRA NVGPU-4413

Change-Id: I77ed2f1cc4e31336f4815468be80b880f015dde7
Signed-off-by: Nicolas Benech <nbenech@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2293848
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Nicolas Benech
2020-02-12 19:31:36 -05:00
committed by Alex Waterman
parent b85094e045
commit 5137e51da8
1 changed files with 13 additions and 1 deletions
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14
userspace/units/mm/vm/vm.c
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@@ -157,6 +157,12 @@ static int hal_vm_as_alloc_share_error(struct gk20a *g, struct vm_gk20a *vm)
return -1; return -1;
} }
/* Dummy HAL for vm_as_alloc_share that always succeeds */
static int hal_vm_as_alloc_share_success(struct gk20a *g, struct vm_gk20a *vm)
{
return 0;
}
/* Initialize test environment */ /* Initialize test environment */
static int init_test_env(struct unit_module *m, struct gk20a *g) static int init_test_env(struct unit_module *m, struct gk20a *g)
{ {
@@ -583,6 +589,12 @@ static int map_buffer(struct unit_module *m,
ret = UNIT_FAIL; ret = UNIT_FAIL;
goto free_vm_area; goto free_vm_area;
} }
/* For branch coverage */
if (nvgpu_vm_area_find(vm, 0) != NULL) {
unit_err(m, "nvgpu_vm_area_find did not fail as expected\n");
ret = UNIT_FAIL;
goto free_vm_area;
}
} }
} }
@@ -970,7 +982,7 @@ int test_init_error_paths(struct unit_module *m, struct gk20a *g, void *__args)
g->ops.mm.gmmu.get_default_big_page_size(), g->ops.mm.gmmu.get_default_big_page_size(),
low_hole, kernel_reserved, aperture_size, low_hole, kernel_reserved, aperture_size,
big_pages, true, true, __func__); big_pages, true, true, __func__);
g->ops.mm.vm_as_alloc_share = NULL; g->ops.mm.vm_as_alloc_share = hal_vm_as_alloc_share_success;
if (ret != -1) { if (ret != -1) {
unit_err(m, "nvgpu_vm_do_init did not fail as expected (5).\n"); unit_err(m, "nvgpu_vm_do_init did not fail as expected (5).\n");
ret = UNIT_FAIL; ret = UNIT_FAIL;