accel/ivpu: Correct MMU queue size checking functions

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Do not use kernel CIRC_SPACE and CIRC_CNT that
incorrectly return space of a queue when wrap bit was set.
Use correct implementation that compares producer, consumer and
wrap bit values.

Without this fix it was possible to lose events in case when event
queue was full.

Signed-off-by: Wachowski, Karol <karol.wachowski@intel.com>
Signed-off-by: Jacek Lawrynowicz <jacek.lawrynowicz@linux.intel.com>
Reviewed-by: Jeffrey Hugo <quic_jhugo@quicinc.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240126122804.2169129-3-jacek.lawrynowicz@linux.intel.com

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Wachowski, Karol 2024-01-26 13:27:59 +01:00 • committed by Jacek Lawrynowicz

parent c9da9a1f17

commit b039f1c4d3

1 changed files with 22 additions and 11 deletions

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drivers/accel/ivpu/ivpu_mmu.c

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