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gpu: nvgpu: ga10b: update runlist.write_state

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Update HAL function runlist.write_state to skip in-active
runlists in fifo.runlists. It is possible for one or more
engines to be floorswept in which case their associated
runlist will be in-active, example, if host supports
3 runlists(0, 1, 2) each serving 3 engines(0, 1, 2), and
engine-1 is floorswept, then runlist-1 becomes in-active and
the entry fifo->runlists[1] will be set to NULL.

Bug  3650588

Change-Id: Iaf9d75e310903c47b842e84dcfa2209d9fe7da96
Signed-off-by: Antony Clince Alex <aalex@nvidia.com>
(cherry picked from commit e29a2019cf8f4796737c670f98164f7783448d49)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2717075
Reviewed-by: svcacv <svcacv@nvidia.com>
Reviewed-by: Seema Khowala <seemaj@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>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Antony Clince Alex
2022-05-21 12:47:25 +00:00
committed by mobile promotions
parent 152b4a0379
commit a80c445a5d
1 changed files with 9 additions and 2 deletions
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11
drivers/gpu/nvgpu/hal/fifo/runlist_fifo_ga10b_fusa.c
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@@ -128,8 +128,15 @@ void ga10b_runlist_write_state(struct gk20a *g, u32 runlists_mask,
while (runlists_mask != 0U && (runlist_id < g->fifo.max_runlists)) {
if ((runlists_mask & BIT32(runlist_id)) != 0U) {
runlist = g->fifo.runlists[runlist_id];
nvgpu_runlist_writel(g, runlist,
runlist_sched_disable_r(), reg_val);
/*
* Its possible that some of the engines might be
* FSed, in which case the entry in fifo.runlists will
* be NULL, hence perform a NULL check first.
*/
if (runlist != NULL) {
nvgpu_runlist_writel(g, runlist,
runlist_sched_disable_r(), reg_val);
}
}
runlists_mask &= ~BIT32(runlist_id);
runlist_id++;