event_types_num received from the user can be 0. In that case, the
event_mask should be 0.
In addition, to create a correct mask we need to match the number
of event types to the bit location such that bit 0 represents a single
event type, bit 1 represents 2 types and so on.
Signed-off-by: Oded Gabbay <ogab...@kernel.org>
---
drivers/accel/habanalabs/gaudi2/gaudi2_coresight.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/accel/habanalabs/gaudi2/gaudi2_coresight.c
b/drivers/accel/habanalabs/gaudi2/gaudi2_coresight.c
index 14a855cdc96b..2423620ff358 100644
--- a/drivers/accel/habanalabs/gaudi2/gaudi2_coresight.c
+++ b/drivers/accel/habanalabs/gaudi2/gaudi2_coresight.c
@@ -2500,7 +2500,8 @@ static int gaudi2_config_spmu(struct hl_device *hdev,
struct hl_debug_params *pa
* set enabled events mask based on input->event_types_num
*/
event_mask = 0x80000000;
- event_mask |= GENMASK(input->event_types_num, 0);
+ if (input->event_types_num)
+ event_mask |= GENMASK(input->event_types_num - 1, 0);
WREG32(base_reg + mmSPMU_PMCNTENSET_EL0_OFFSET, event_mask);
} else {
--
2.34.1
