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gpu: nvgpu: unit: cover more tsg open branches

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Add branch coverage for:
- nvgpu_tsg_alloc_sm_error_states_mem

Jira NVGPU-3476

Change-Id: Ifca5b5f512536c609c11fc317d28704380a73a58
Signed-off-by: Thomas Fleury <tfleury@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2124514
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vaibhav Kachore <vkachore@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Thomas Fleury
2019-05-22 17:18:03 -07:00
committed by mobile promotions
parent 6602baaf41
commit f980c859e9
1 changed files with 40 additions and 6 deletions
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46
userspace/units/fifo/tsg/nvgpu-tsg.c
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@@ -152,13 +152,17 @@ static bool pruned(u32 branches, u32 final_branches)
return (branches > BIT(bit));
}
#define F_TSG_OPEN_ACQUIRE_CH_FAIL BIT(0)
#define F_TSG_OPEN_SM_FAIL BIT(1)
#define F_TSG_OPEN_LAST BIT(2)
#define F_TSG_OPEN_ACQUIRE_CH_FAIL BIT(0)
#define F_TSG_OPEN_SM_FAIL BIT(1)
#define F_TSG_OPEN_ALLOC_SM_FAIL BIT(2)
#define F_TSG_OPEN_ALLOC_SM_KZALLOC_FAIL BIT(3)
#define F_TSG_OPEN_LAST BIT(4)
static const char *f_tsg_open[] = {
"acquire_ch_fail",
"sm_fail",
"alloc_sm_fail",
"alloc_sm_kzalloc_fail",
};
static u32 stub_gr_init_get_no_of_sm_0(struct gk20a *g)
@@ -173,10 +177,18 @@ static int test_tsg_open(struct unit_module *m,
struct gpu_ops gops = g->ops;
u32 num_channels = f->num_channels;
struct nvgpu_tsg *tsg = NULL;
struct nvgpu_tsg *next_tsg = NULL;
struct nvgpu_posix_fault_inj *kmem_fi;
u32 branches = 0U;
int rc = UNIT_FAIL;
u32 fail = F_TSG_OPEN_ACQUIRE_CH_FAIL | F_TSG_OPEN_SM_FAIL;
u32 fail = F_TSG_OPEN_ACQUIRE_CH_FAIL |
F_TSG_OPEN_SM_FAIL |
F_TSG_OPEN_ALLOC_SM_FAIL |
F_TSG_OPEN_ALLOC_SM_KZALLOC_FAIL;
u32 prune = fail;
u32 tsgid;
kmem_fi = nvgpu_kmem_get_fault_injection();
for (branches = 0U; branches < F_TSG_OPEN_LAST; branches++) {
@@ -189,17 +201,39 @@ static int test_tsg_open(struct unit_module *m,
branches_str(branches, f_tsg_open));
subtest_setup(branches);
/* find next tsg (if acquire succeeds) */
next_tsg = NULL;
for (tsgid = 0U; tsgid < f->num_channels; tsgid++) {
if (!f->tsg[tsgid].in_use) {
next_tsg = &f->tsg[tsgid];
break;
}
}
assert(next_tsg != NULL);
f->num_channels =
branches & F_TSG_OPEN_ACQUIRE_CH_FAIL ?
0U : num_channels;
g->ops.gr.init.get_no_of_sm =
branches & F_TSG_OPEN_SM_FAIL ?
stub_gr_init_get_no_of_sm_0 : gops.gr.init.get_no_of_sm;
stub_gr_init_get_no_of_sm_0 :
gops.gr.init.get_no_of_sm;
next_tsg->sm_error_states =
branches & F_TSG_OPEN_ALLOC_SM_FAIL ?
(void*)1 : NULL;
nvgpu_posix_enable_fault_injection(kmem_fi,
branches & F_TSG_OPEN_ALLOC_SM_KZALLOC_FAIL ?
true : false, 0);
tsg = nvgpu_tsg_open(g, getpid());
f->tsg[tsgid].sm_error_states = NULL;
if (branches & fail) {
f->num_channels = num_channels;
assert(tsg == NULL);
} else {
assert(tsg != NULL);
@@ -214,7 +248,7 @@ done:
unit_err(m, "%s branches=%s\n", __func__,
branches_str(branches, f_tsg_open));
}
nvgpu_posix_enable_fault_injection(kmem_fi, false, 0);
if (tsg != NULL) {
nvgpu_ref_put(&tsg->refcount, nvgpu_tsg_release);
}