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2b7e8a2c2a
We right now remove a channel from TSG list and disable all the channels in TSG while removing a channel from TSG With this sequence if any one channel in TSG is closed, rest of the channels are set as timed out and cannot be used anymore We need to fix this sequence as below to allow removing a channel from active TSG so that rest of the channels can still be used - disable all channels of TSG - preempt TSG - check if CTX_RELOAD is set if support is available if CTX_RELOAD is set on channel, it should be moved to some other channel - check if FAULTED is set if support is available - if NEXT is set on channel then it means channel is still active print out an error in this case for the time being until properly handled - remove the channel from runlist - remove channel from TSG list - re-enable rest of the channels in TSG - clean up the channel (same as regular channels) Add below fifo operations to support checking channel status g->ops.fifo.tsg_verify_status_ctx_reload g->ops.fifo.tsg_verify_status_faulted Define ops.fifo.tsg_verify_status_ctx_reload operation for gm20b/gp10b/gp106 as gm20b_fifo_tsg_verify_status_ctx_reload() This API will check if channel to be released has CTX_RELOAD set, if yes CTX_RELOAD needs to be moved to some other channel in TSG Remove static from channel_gk20a_update_runlist() and export it Bug 200327095 Change-Id: I0dd4be7c7e0b9b759389ec12c5a148a4b919d3e2 Signed-off-by: Deepak Nibade <dnibade@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1560637 Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Seshendra Gadagottu <sgadagottu@nvidia.com> Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
31 lines
1.0 KiB
C
31 lines
1.0 KiB
C
/*
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* GM20B Fifo
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*
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* Copyright (c) 2014-2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*/
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#ifndef _NVHOST_GM20B_FIFO
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#define _NVHOST_GM20B_FIFO
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struct gk20a;
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void channel_gm20b_bind(struct channel_gk20a *c);
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void gm20b_fifo_trigger_mmu_fault(struct gk20a *g,
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unsigned long engine_ids);
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u32 gm20b_fifo_get_num_fifos(struct gk20a *g);
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void gm20b_device_info_data_parse(struct gk20a *g,
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u32 table_entry, u32 *inst_id,
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u32 *pri_base, u32 *fault_id);
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void gm20b_fifo_init_pbdma_intr_descs(struct fifo_gk20a *f);
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void gm20b_fifo_tsg_verify_status_ctx_reload(struct channel_gk20a *ch);
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#endif
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