From 1ab4754c052b639427f38202860d064c2fa03b57 Mon Sep 17 00:00:00 2001 From: Mahantesh Kumbar Date: Fri, 20 Oct 2017 16:30:42 +0530 Subject: gpu: nvgpu: Kill pg init thread if pmu boot fails - Created nvgpu_kill_task_pg_init() method to set pmu state to PMU_STATE_EXIT & make thread stop, and poll to confirm thread stopped. - Check for PMU/SEC2 ACR secure boot completion status & initiate pg init thread kill if ACR boot exits with error, which fails to validate & boot LS-PMU. - Set pmu state to PMU_STATE_OFF after thread kill during ACR boot failure. Issue: pg init task blocks if PMU boot fails & cause kernel to show message "task nvgpu_pg_init_g:2120 blocked for more than 120 seconds" Bug 200346134 Change-Id: I5270426080dcd628ccca4df798005294c19767a0 Signed-off-by: Mahantesh Kumbar Reviewed-on: https://git-master.nvidia.com/r/1582593 Reviewed-by: Automatic_Commit_Validation_User GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu Reviewed-by: mobile promotions Tested-by: mobile promotions --- drivers/gpu/nvgpu/include/nvgpu/pmu.h | 1 + 1 file changed, 1 insertion(+) (limited to 'drivers/gpu/nvgpu/include') diff --git a/drivers/gpu/nvgpu/include/nvgpu/pmu.h b/drivers/gpu/nvgpu/include/nvgpu/pmu.h index 045bf34c..a818f3d0 100644 --- a/drivers/gpu/nvgpu/include/nvgpu/pmu.h +++ b/drivers/gpu/nvgpu/include/nvgpu/pmu.h @@ -421,6 +421,7 @@ int nvgpu_pmu_process_init_msg(struct nvgpu_pmu *pmu, void nvgpu_pmu_state_change(struct gk20a *g, u32 pmu_state, bool post_change_event); +void nvgpu_kill_task_pg_init(struct gk20a *g); /* NVGPU-PMU MEM alloc */ void nvgpu_pmu_surface_free(struct gk20a *g, struct nvgpu_mem *mem); -- cgit v1.2.2