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soc: fsl: dpio: Prefer the CPU affine DPIO

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Use the cpu affine DPIO unless there isn't one which can happen
if less DPIOs than cores are assign to the kernel.

Signed-off-by: Roy Pledge <roy.pledge@nxp.com>
Signed-off-by: Ioana Ciornei <ioana.ciornei@nxp.com>
Signed-off-by: Li Yang <leoyang.li@nxp.com>
This commit is contained in:
Roy Pledge 2020-04-24 14:51:12 +03:00 committed by Li Yang
parent 162b323c3d
commit d0bab301a0
1 changed files with 5 additions and 1 deletions
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6
drivers/soc/fsl/dpio/dpio-service.c
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@ -58,7 +58,7 @@ static inline struct dpaa2_io *service_select_by_cpu(struct dpaa2_io *d,
* If cpu == -1, choose the current cpu, with no guarantees about
* potentially being migrated away.
*/
if (unlikely(cpu < 0))
if (cpu < 0)
cpu = smp_processor_id();
/* If a specific cpu was requested, pick it up immediately */
@ -70,6 +70,10 @@ static inline struct dpaa2_io *service_select(struct dpaa2_io *d)
if (d)
return d;
d = service_select_by_cpu(d, -1);
if (d)
return d;
spin_lock(&dpio_list_lock);
d = list_entry(dpio_list.next, struct dpaa2_io, node);
list_del(&d->node);