3 Commits

Author	SHA1	Message	Date
Tejal Kudav	ab2b0b5949	gpu: nvgpu: Set unserviceable flag early during RC ... During recovery, we set ch->unserviceable at the end after we preempt the TSG and reset the engines. It might be too late and user-space might submit more work to the broken channel which is not desirable. Move setting this unserviceable flag right at the start of recovery sequence. Another thread doing a submit can still read the unserviceable flag just before it is set here, leaving that submit stuck if recovery completes before the submit thread advances enough to set up a post fence visible for other threads. This could be fixed with a big lock or with a double check at the end of the submit code after the job data has been made visible. We still release the fences, semaphore and error notifier wait queues at the end; so user-space would not trigger channel unbind while channel is being recovered. Also, change the handle_mmu_fault APIs to return void as the debug_dump return value is not used in any of the caller APIs. JIRA NVGPU-5843 Change-Id: Ib42c2816dd1dca542e4f630805411cab75fad90e Signed-off-by: Tejal Kudav <tkudav@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2385256 Reviewed-by: automaticguardword <automaticguardword@nvidia.com> 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: Konsta Holtta <kholtta@nvidia.com> Reviewed-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> GVS: Gerrit_Virtual_Submit Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>	2020-12-15 14:13:28 -06:00
Seema Khowala	da9dee85e2	gpu: nvgpu: move mmu fault handling to hal/fifo ... Move chip specific mmu fault handling from fifo_gk20a.c to hal/fifo/mmu_fault_gk20a.c Move gk20a_teardown_ch_tsg to hal/rc/rc_gk20a.c JIRA NVGPU-1314 Change-Id: Idf88b1c312bc9f46c2508f2c63e948d71d622297 Signed-off-by: Seema Khowala <seemaj@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2094051 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>	2019-04-18 15:56:08 -07:00
Seema Khowala	93fd6644f4	gpu: nvgpu: move mmu_fault hals to hal/fifo ... Moved below hals from {chip}/fifo_{chip}.[ch] to hal/fifo get_mmu_fault_info get_mmu_fault_desc get_mmu_fault_client_desc get_mmu_fault_gpc_desc Moved gk20a_fifo_handle_dropped_mmu_fault to hal/fifo JIRA NVGPU-1313 Change-Id: I949bcd482156c6e381006387372f13770277e8c5 Signed-off-by: Seema Khowala <seemaj@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/2083287 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>	2019-04-03 13:35:33 -07:00