Files
linux-nvgpu/drivers/gpu/nvgpu/common/fifo/preempt.c
Seema Khowala cfb4ff0bfb gpu: nvgpu: rename struct fifo_gk20a
Rename
struct fifo_gk20a -> nvgpu_fifo

JIRA NVGPU-2012

Change-Id: Ifb5854592c88894ecd830da092ada27c7f05380d
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2109625
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Alex Waterman <alexw@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Adeel Raza <araza@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-05-03 16:25:43 -07:00

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/*
* Copyright (c) 2011-2019, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#include <nvgpu/gk20a.h>
#include <nvgpu/runlist.h>
#include <nvgpu/types.h>
#include <nvgpu/channel.h>
#include <nvgpu/tsg.h>
#include <nvgpu/preempt.h>
u32 nvgpu_preempt_get_timeout(struct gk20a *g)
{
return g->ctxsw_timeout_period_ms;
}
int nvgpu_preempt_channel(struct gk20a *g, struct channel_gk20a *ch)
{
int err;
struct tsg_gk20a *tsg = tsg_gk20a_from_ch(ch);
if (tsg != NULL) {
err = g->ops.fifo.preempt_tsg(ch->g, tsg);
} else {
err = g->ops.fifo.preempt_channel(ch->g, ch);
}
return err;
}
/* called from rc */
void nvgpu_preempt_poll_tsg_on_pbdma(struct gk20a *g,
struct tsg_gk20a *tsg)
{
struct nvgpu_fifo *f = &g->fifo;
u32 runlist_id;
unsigned long runlist_served_pbdmas;
unsigned long pbdma_id_bit;
u32 tsgid, pbdma_id;
if (g->ops.fifo.preempt_poll_pbdma == NULL) {
return;
}
if (tsg == NULL) {
return;
}
tsgid = tsg->tsgid;
runlist_id = tsg->runlist_id;
runlist_served_pbdmas = f->runlist_info[runlist_id]->pbdma_bitmask;
for_each_set_bit(pbdma_id_bit, &runlist_served_pbdmas, f->num_pbdma) {
pbdma_id = U32(pbdma_id_bit);
/*
* If pbdma preempt fails the only option is to reset
* GPU. Any sort of hang indicates the entire GPUs
* memory system would be blocked.
*/
if (g->ops.fifo.preempt_poll_pbdma(g, tsgid,
pbdma_id) != 0) {
nvgpu_report_host_error(g, 0,
GPU_HOST_PBDMA_PREEMPT_ERROR,
pbdma_id);
nvgpu_err(g, "PBDMA preempt failed");
}
}
}