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gpu: nvgpu: add assert on number of SMs

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HAL gops.gr.config.init_sm_id_table() initializes SM count in struct
nvgpu_gr_config. It is almost impossible that SM count is detected as
zero.

Hence remove the error check and add an assert instead.

This also helps with code coverage tests since it is difficult to
simulate error condition of having zero SMs detected.

Also, HAL gops.gr.config.init_sm_id_table() should always be defined
for each platform. Hence remove unnecessary check.

Jira NVGPU-4373

Change-Id: Ibd9b301b28d5bd2952367346a8f12fabcee2abd9
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2247845
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: svc-mobile-misra <svc-mobile-misra@nvidia.com>
Reviewed-by: svc-mobile-cert <svc-mobile-cert@nvidia.com>
Reviewed-by: Alex Waterman <alexw@nvidia.com>
Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Vinod Gopalakrishnakurup <vinodg@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Deepak Nibade
2019-11-25 19:31:16 +05:30
committed by Alex Waterman
parent 4554b4654a
commit 04adc71304
1 changed files with 5 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/nvgpu/common/gr/fs_state.c
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@@ -105,17 +105,12 @@ int nvgpu_gr_fs_state_init(struct gk20a *g, struct nvgpu_gr_config *config)
g->ops.gr.init.fs_state(g);
if (g->ops.gr.config.init_sm_id_table != NULL) {
err = g->ops.gr.config.init_sm_id_table(g, config);
if (err != 0) {
return err;
}
/* Is table empty ? */
if (g->ops.gr.init.get_no_of_sm(g) == 0U) {
return -EINVAL;
}
}
nvgpu_assert(g->ops.gr.init.get_no_of_sm(g) > 0U);
for (sm_id = 0; sm_id < g->ops.gr.init.get_no_of_sm(g);
sm_id++) {