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powerpc/pseries/dlpar: use rtas_get_sensor()

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Instead of making bare calls to get-sensor-state, use
rtas_get_sensor(), which correctly handles busy and extended delay
statuses.

Fixes: ab519a011c ("powerpc/pseries: Kernel DLPAR Infrastructure")
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
Reviewed-by: Laurent Dufour <ldufour@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20210504025329.1713878-1-nathanl@linux.ibm.com
This commit is contained in:
Nathan Lynch 2021-05-03 21:53:29 -05:00 committed by Michael Ellerman
parent 4bfa5ddff9
commit bfb0c9fcf5
1 changed files with 3 additions and 6 deletions
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9
arch/powerpc/platforms/pseries/dlpar.c
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@ -289,8 +289,7 @@ int dlpar_acquire_drc(u32 drc_index)
{
int dr_status, rc;
rc = rtas_call(rtas_token("get-sensor-state"), 2, 2, &dr_status,
DR_ENTITY_SENSE, drc_index);
rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
if (rc || dr_status != DR_ENTITY_UNUSABLE)
return -1;
@ -311,8 +310,7 @@ int dlpar_release_drc(u32 drc_index)
{
int dr_status, rc;
rc = rtas_call(rtas_token("get-sensor-state"), 2, 2, &dr_status,
DR_ENTITY_SENSE, drc_index);
rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
if (rc || dr_status != DR_ENTITY_PRESENT)
return -1;
@ -333,8 +331,7 @@ int dlpar_unisolate_drc(u32 drc_index)
{
int dr_status, rc;
rc = rtas_call(rtas_token("get-sensor-state"), 2, 2, &dr_status,
DR_ENTITY_SENSE, drc_index);
rc = rtas_get_sensor(DR_ENTITY_SENSE, drc_index, &dr_status);
if (rc || dr_status != DR_ENTITY_PRESENT)
return -1;