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accel/habanalabs/gaudi2: fix spmu mask creation 

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 <ogabbay@kernel.org>
Reviewed-by: Ofir Bitton <obitton@habana.ai>
This commit is contained in:
Oded Gabbay 2023-09-28 16:12:30 +03:00
parent 0426e03126
commit 4db74c0fde
1 changed files with 2 additions and 1 deletions
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3
drivers/accel/habanalabs/gaudi2/gaudi2_coresight.c
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@ -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 {