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gpu: nvgpu: add domain scheduler worker

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Move away from the prototype call in channel wdt worker and create a
separate worker thread for the domain scheduler. The details of runlist
domains are still encapsulated in the runlist code; the domain scheduler
controls when to switch domains. Switching happens based on domain
timeslices or when the current domain is deleted.

The worker thread is paused on railgate and spun back on poweron. The
scheduler data was also left dangling, so fix that by deinitializing all
nvs-related when gk20a_remove_support() is called. The runlist domains
already get freed as part of fifo removal.

Jira NVGPU-6427

Change-Id: I64f42498f8789448d9becdd209b7878ef0fdb124
Signed-off-by: Konsta Hölttä <kholtta@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2632579
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Konsta Hölttä
2021-11-25 10:33:57 +02:00
committed by mobile promotions
parent 8ce1f48e2e
commit d086c678fd
6 changed files with 228 additions and 18 deletions
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6
drivers/gpu/nvgpu/os/linux/ioctl_nvs.c
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@@ -30,16 +30,10 @@ int nvgpu_nvs_dev_open(struct inode *inode, struct file *filp)
{
struct nvgpu_cdev *cdev;
struct gk20a *g;
int err;
cdev = container_of(inode->i_cdev, struct nvgpu_cdev, cdev);
g = nvgpu_get_gk20a_from_cdev(cdev);
err = nvgpu_nvs_open(g);
if (err != 0) {
return err;
}
filp->private_data = g;
return 0;