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author | Joshua Bakita <bakitajoshua@gmail.com> | 2024-04-21 20:30:08 -0400 |
---|---|---|
committer | Joshua Bakita <bakitajoshua@gmail.com> | 2024-04-21 20:30:08 -0400 |
commit | 091c242c9ef7cbd8d88d3beae936b14f5b907286 (patch) | |
tree | 85f76f37209abc3888045ff2db8576ad3c6370d7 /runlist_procfs.c | |
parent | 684c20c0afbfc2c2075a00881fbb3f9d3e68e023 (diff) |
Add /proc/gpu#/resubmit_runlist API
Resubmits the runlist in an identical configuration. Causes the
runlist scheduler to:
1. Reload and cache timeslice and scale values from TSGs.
2. Restart scheduling from the head of the runlist [may cause a
preempt to be scheduled for the currently-running task (?)].
3. Address (?) an errata on Turing where re-enabled channels are
not always detected.
Above behavior tested on GV100 and partially tested on TU102.
Diffstat (limited to 'runlist_procfs.c')
-rw-r--r-- | runlist_procfs.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/runlist_procfs.c b/runlist_procfs.c index 0087d90..f569c77 100644 --- a/runlist_procfs.c +++ b/runlist_procfs.c | |||
@@ -207,6 +207,33 @@ struct file_operations preempt_tsg_file_ops = { | |||
207 | .llseek = default_llseek, | 207 | .llseek = default_llseek, |
208 | }; | 208 | }; |
209 | 209 | ||
210 | |||
211 | ssize_t resubmit_runlist_file_write(struct file *f, const char __user *buffer, | ||
212 | size_t count, loff_t *off) { | ||
213 | uint32_t target_runlist; | ||
214 | // Passing 0 as the base to kstrtou32 indicates autodetect hex/octal/dec | ||
215 | int err = kstrtou32_from_user(buffer, count, 0, &target_runlist); | ||
216 | struct nvdebug_state *g = &g_nvdebug_state[file2gpuidx(f)]; | ||
217 | if (err) | ||
218 | return err; | ||
219 | |||
220 | // Verify valid runlist (in terms of absolute maximums) | ||
221 | if (g->chip_id < NV_CHIP_ID_TURING && target_runlist > MAX_RUNLISTS_GF100) | ||
222 | return -ERANGE; | ||
223 | else if (g->chip_id < NV_CHIP_ID_AMPERE && target_runlist > MAX_RUNLISTS_TU102) | ||
224 | return -ERANGE; | ||
225 | |||
226 | if ((err = resubmit_runlist(g, target_runlist))) | ||
227 | return err; | ||
228 | |||
229 | return count; | ||
230 | } | ||
231 | |||
232 | struct file_operations resubmit_runlist_file_ops = { | ||
233 | .write = resubmit_runlist_file_write, | ||
234 | .llseek = default_llseek, | ||
235 | }; | ||
236 | |||
210 | ssize_t disable_channel_file_write(struct file *f, const char __user *buffer, | 237 | ssize_t disable_channel_file_write(struct file *f, const char __user *buffer, |
211 | size_t count, loff_t *off) { | 238 | size_t count, loff_t *off) { |
212 | uint32_t target_channel; | 239 | uint32_t target_channel; |