diff options
| author | Ofir Bitton <obitton@habana.ai> | 2021-11-23 16:15:22 +0300 |
|---|---|---|
| committer | Oded Gabbay <ogabbay@kernel.org> | 2021-12-26 15:42:11 +0300 |
| commit | 42eb2872e0867679c996bb19ee9063e6141fa974 (patch) | |
| tree | 54f11b2c2a27fa3e0060daf984d7a18a739a93a5 /drivers/misc/habanalabs/common/habanalabs.h | |
| parent | eb135291912f7554e2a2472befc44818098baa8d (diff) | |
| download | linux-42eb2872e0867679c996bb19ee9063e6141fa974.tar.xz | |
habanalabs: add a lock to protect multiple reset variables
Atomic operations during reset are replaced by a spinlock in order
to have the ability to protect more than a single variable.
Signed-off-by: Ofir Bitton <obitton@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>
Diffstat (limited to 'drivers/misc/habanalabs/common/habanalabs.h')
| -rw-r--r-- | drivers/misc/habanalabs/common/habanalabs.h | 6 |
1 files changed, 4 insertions, 2 deletions
diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h index 47eaeff9e924..37a3a469b42f 100644 --- a/drivers/misc/habanalabs/common/habanalabs.h +++ b/drivers/misc/habanalabs/common/habanalabs.h @@ -2457,9 +2457,10 @@ struct last_error_session_info { /** * struct hl_reset_info - holds current device reset information. - * @in_reset: is device in reset flow. + * @lock: lock to protect critical reset flows. * @soft_reset_cnt: number of soft reset since the driver was loaded. * @hard_reset_cnt: number of hard reset since the driver was loaded. + * @in_reset: is device in reset flow. * @is_in_soft_reset: Device is currently in soft reset process. * @needs_reset: true if reset_on_lockup is false and device should be reset * due to lockup. @@ -2474,9 +2475,10 @@ struct last_error_session_info { * complete instead. */ struct hl_reset_info { - atomic_t in_reset; + spinlock_t lock; u32 soft_reset_cnt; u32 hard_reset_cnt; + u8 in_reset; u8 is_in_soft_reset; u8 needs_reset; u8 hard_reset_pending; |