From: Mark Rutland <mark.rutland@arm.com>
To: linux-arm-kernel@lists.infradead.org
Cc: mark.rutland@arm.com, lorenzo.pieralisi@arm.com,
suzuki.poulose@arm.com, marc.zyngier@arm.com,
catalin.marinas@arm.com, will.deacon@arm.com,
linux@armlinux.org.uk, james.morse@arm.com, robin.murphy@arm.com
Subject: [PATCHv3 4/6] firmware/psci: use common SMCCC_CONDUIT_*
Date: Fri, 9 Aug 2019 14:22:43 +0100 [thread overview]
Message-ID: <20190809132245.43505-5-mark.rutland@arm.com> (raw)
In-Reply-To: <20190809132245.43505-1-mark.rutland@arm.com>
Now that we have common SMCCC_CONDUIT_* definitions, migrate the PSCI
code over to them, and kill off the old PSCI_CONDUIT_* definitions.
There should be no functional change as a result of this patch.
Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
---
drivers/firmware/psci/psci.c | 25 +++++++++----------------
include/linux/psci.h | 9 ++-------
2 files changed, 11 insertions(+), 23 deletions(-)
diff --git a/drivers/firmware/psci/psci.c b/drivers/firmware/psci/psci.c
index 5f31f1bea1af..b8c07a8f8d5d 100644
--- a/drivers/firmware/psci/psci.c
+++ b/drivers/firmware/psci/psci.c
@@ -53,7 +53,7 @@ bool psci_tos_resident_on(int cpu)
}
struct psci_operations psci_ops = {
- .conduit = PSCI_CONDUIT_NONE,
+ .conduit = SMCCC_CONDUIT_NONE,
.smccc_version = SMCCC_VERSION_1_0,
};
@@ -62,14 +62,7 @@ enum arm_smccc_conduit arm_smccc_1_1_get_conduit(void)
if (psci_ops.smccc_version < SMCCC_VERSION_1_1)
return SMCCC_CONDUIT_NONE;
- switch (psci_ops.conduit) {
- case PSCI_CONDUIT_SMC:
- return SMCCC_CONDUIT_SMC;
- case PSCI_CONDUIT_HVC:
- return SMCCC_CONDUIT_HVC;
- default:
- return SMCCC_CONDUIT_NONE;
- }
+ return psci_ops.conduit;
}
typedef unsigned long (psci_fn)(unsigned long, unsigned long,
@@ -227,13 +220,13 @@ static unsigned long psci_migrate_info_up_cpu(void)
0, 0, 0);
}
-static void set_conduit(enum psci_conduit conduit)
+static void set_conduit(enum arm_smccc_conduit conduit)
{
switch (conduit) {
- case PSCI_CONDUIT_HVC:
+ case SMCCC_CONDUIT_HVC:
invoke_psci_fn = __invoke_psci_fn_hvc;
break;
- case PSCI_CONDUIT_SMC:
+ case SMCCC_CONDUIT_SMC:
invoke_psci_fn = __invoke_psci_fn_smc;
break;
default:
@@ -255,9 +248,9 @@ static int get_set_conduit_method(struct device_node *np)
}
if (!strcmp("hvc", method)) {
- set_conduit(PSCI_CONDUIT_HVC);
+ set_conduit(SMCCC_CONDUIT_HVC);
} else if (!strcmp("smc", method)) {
- set_conduit(PSCI_CONDUIT_SMC);
+ set_conduit(SMCCC_CONDUIT_SMC);
} else {
pr_warn("invalid \"method\" property: %s\n", method);
return -EINVAL;
@@ -749,9 +742,9 @@ int __init psci_acpi_init(void)
pr_info("probing for conduit method from ACPI.\n");
if (acpi_psci_use_hvc())
- set_conduit(PSCI_CONDUIT_HVC);
+ set_conduit(SMCCC_CONDUIT_HVC);
else
- set_conduit(PSCI_CONDUIT_SMC);
+ set_conduit(SMCCC_CONDUIT_SMC);
return psci_probe();
}
diff --git a/include/linux/psci.h b/include/linux/psci.h
index a8a15613c157..def0b89cc05d 100644
--- a/include/linux/psci.h
+++ b/include/linux/psci.h
@@ -7,6 +7,7 @@
#ifndef __LINUX_PSCI_H
#define __LINUX_PSCI_H
+#include <linux/arm-smccc.h>
#include <linux/init.h>
#include <linux/types.h>
@@ -18,12 +19,6 @@ bool psci_tos_resident_on(int cpu);
int psci_cpu_init_idle(unsigned int cpu);
int psci_cpu_suspend_enter(unsigned long index);
-enum psci_conduit {
- PSCI_CONDUIT_NONE,
- PSCI_CONDUIT_SMC,
- PSCI_CONDUIT_HVC,
-};
-
enum smccc_version {
SMCCC_VERSION_1_0,
SMCCC_VERSION_1_1,
@@ -38,7 +33,7 @@ struct psci_operations {
int (*affinity_info)(unsigned long target_affinity,
unsigned long lowest_affinity_level);
int (*migrate_info_type)(void);
- enum psci_conduit conduit;
+ enum arm_smccc_conduit conduit;
enum smccc_version smccc_version;
};
--
2.11.0
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next prev parent reply other threads:[~2019-08-09 13:24 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-09 13:22 [PATCHv3 0/6] arm/arm64: SMCCC conduit cleanup Mark Rutland
2019-08-09 13:22 ` [PATCHv3 1/6] arm/arm64: smccc/psci: add arm_smccc_1_1_get_conduit() Mark Rutland
2019-08-12 15:03 ` Dave Martin
2019-08-12 15:06 ` Mark Rutland
2019-08-12 15:10 ` Dave Martin
2019-08-12 15:26 ` Mark Rutland
2019-08-13 11:38 ` Dave Martin
2019-08-09 13:22 ` [PATCHv3 2/6] arm64: errata: use arm_smccc_1_1_get_conduit() Mark Rutland
2019-08-09 13:22 ` [PATCHv3 3/6] arm: spectre-v2: " Mark Rutland
2019-10-11 14:02 ` Catalin Marinas
2019-08-09 13:22 ` Mark Rutland [this message]
2019-08-09 13:22 ` [PATCHv3 5/6] firmware: arm_sdei: use common SMCCC_CONDUIT_* Mark Rutland
2019-08-09 13:22 ` [PATCHv3 6/6] smccc: make 1.1 macros value-returning Mark Rutland
2019-08-15 16:42 ` Will Deacon
2019-08-19 10:44 ` Mark Rutland
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