From: Nathan Lynch <nathanl@linux.ibm.com>
To: linuxppc-dev@lists.ozlabs.org
Cc: aik@ozlabs.ru, ajd@linux.ibm.com, tyreld@linux.ibm.com
Subject: [RFC 06/10] powerpc/pseries/msi: convert to rtas_sched_if_busy()
Date: Mon, 3 May 2021 22:03:54 -0500 [thread overview]
Message-ID: <20210504030358.1715034-7-nathanl@linux.ibm.com> (raw)
In-Reply-To: <20210504030358.1715034-1-nathanl@linux.ibm.com>
rtas_sched_if_busy() has better behavior for RTAS_BUSY (-2) and small
extended delay values.
Signed-off-by: Nathan Lynch <nathanl@linux.ibm.com>
---
arch/powerpc/platforms/pseries/msi.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 637300330507..df434b8a3aa7 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -49,7 +49,7 @@ static int rtas_change_msi(struct pci_dn *pdn, u32 func, u32 num_irqs)
func, num_irqs, seq_num);
seq_num = rtas_ret[1];
- } while (rtas_busy_delay(rc));
+ } while (rtas_sched_if_busy(rc));
/*
* If the RTAS call succeeded, return the number of irqs allocated.
@@ -100,7 +100,7 @@ static int rtas_query_irq_number(struct pci_dn *pdn, int offset)
do {
rc = rtas_call(query_token, 4, 3, rtas_ret, addr,
BUID_HI(buid), BUID_LO(buid), offset);
- } while (rtas_busy_delay(rc));
+ } while (rtas_sched_if_busy(rc));
if (rc) {
pr_debug("rtas_msi: error (%d) querying source number\n", rc);
--
2.30.2
next prev parent reply other threads:[~2021-05-04 3:07 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-04 3:03 [RFC 00/10] powerpc/rtas: improved busy and extended delay status handling Nathan Lynch
2021-05-04 3:03 ` [RFC 01/10] powerpc/rtas: new APIs for busy and extended delay statuses Nathan Lynch
2021-05-13 9:59 ` Alexey Kardashevskiy
2021-05-04 3:03 ` [RFC 02/10] powerpc/rtas: do not schedule in rtas_os_term() Nathan Lynch
2021-05-04 3:03 ` [RFC 03/10] powerpc/rtas-rtc: convert get-time-of-day to rtas_force_spin_if_busy() Nathan Lynch
2021-05-04 3:03 ` [RFC 04/10] powerpc/rtas-rtc: convert set-time-of-day to rtas_sched_if_busy() Nathan Lynch
2021-05-04 3:03 ` [RFC 05/10] powerpc/pseries/fadump: convert " Nathan Lynch
2021-05-04 3:03 ` Nathan Lynch [this message]
2021-05-04 3:03 ` [RFC 07/10] powerpc/pseries/iommu: " Nathan Lynch
2021-05-04 3:03 ` [RFC 08/10] powerpc/pseries/dlpar: " Nathan Lynch
2021-05-04 3:03 ` [RFC 09/10] powerpc/rtas: " Nathan Lynch
2021-05-04 3:03 ` [RFC 10/10] powerpc/rtas_flash: " Nathan Lynch
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