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| author | Omer Shpigelman <oshpigelman@habana.ai> | 2019-05-01 14:38:38 +0300 |
|---|---|---|
| committer | Oded Gabbay <oded.gabbay@gmail.com> | 2019-05-24 22:46:15 +0300 |
| commit | 89225ce4fc43da2db968923fc94e1469dbcdbd5a (patch) | |
| tree | 2e07242d5a6ada3012f753403ce5505807f75a8f /drivers/misc/habanalabs/goya/goyaP.h | |
| parent | a188339ca5a396acc588e5851ed7e19f66b0ebd9 (diff) | |
| download | linux-89225ce4fc43da2db968923fc94e1469dbcdbd5a.tar.gz linux-89225ce4fc43da2db968923fc94e1469dbcdbd5a.tar.bz2 linux-89225ce4fc43da2db968923fc94e1469dbcdbd5a.zip | |
habanalabs: halt debug engines on user process close
This patch fix a potential bug where a user's process has closed
unexpectedly without disabling the debug engines. In that case, the debug
engines might continue running but because the user's MMU mappings are
going away, we will get page fault errors.
This behavior is also opposed to the general rule where nothing runs on
the device after the user process closes.
The patch stops the debug H/W engines upon process termination and thus
makes sure nothing runs on the device after the process goes away.
Signed-off-by: Omer Shpigelman <oshpigelman@habana.ai>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
Diffstat (limited to 'drivers/misc/habanalabs/goya/goyaP.h')
| -rw-r--r-- | drivers/misc/habanalabs/goya/goyaP.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/misc/habanalabs/goya/goyaP.h b/drivers/misc/habanalabs/goya/goyaP.h index 14e216cb3668..c83cab0d641e 100644 --- a/drivers/misc/habanalabs/goya/goyaP.h +++ b/drivers/misc/habanalabs/goya/goyaP.h @@ -202,6 +202,7 @@ void goya_add_device_attr(struct hl_device *hdev, struct attribute_group *dev_attr_grp); int goya_armcp_info_get(struct hl_device *hdev); int goya_debug_coresight(struct hl_device *hdev, void *data); +void goya_halt_coresight(struct hl_device *hdev); void goya_mmu_prepare(struct hl_device *hdev, u32 asid); int goya_mmu_clear_pgt_range(struct hl_device *hdev); |