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authorMark Rutland <mark.rutland@arm.com>2019-08-09 14:22:42 +0100
committerCatalin Marinas <catalin.marinas@arm.com>2019-10-14 10:55:14 +0100
commit6848253ddeae9fa44680bab6212599283f9d4ef2 (patch)
treeae1b1df6a4db914f2d47986e6c47b3ef04de5ffb /arch/arm/mm
parentc98bd29917281a5023f71a3148f538ad2709c0f0 (diff)
arm: spectre-v2: use arm_smccc_1_1_get_conduit()
Now that we have arm_smccc_1_1_get_conduit(), we can hide the PSCI implementation details from the arm spectre-v2 code, so let's do so. As arm_smccc_1_1_get_conduit() implicitly checks that the SMCCC version is at least SMCCC_VERSION_1_1, we no longer need to check this explicitly where switch statements have a default case. There should be no functional change as a result of this patch. Signed-off-by: Mark Rutland <mark.rutland@arm.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@armlinux.org.uk> Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/mm')
-rw-r--r--arch/arm/mm/proc-v7-bugs.c10
1 files changed, 3 insertions, 7 deletions
diff --git a/arch/arm/mm/proc-v7-bugs.c b/arch/arm/mm/proc-v7-bugs.c
index 9a07916af8dd..54d87506d3b5 100644
--- a/arch/arm/mm/proc-v7-bugs.c
+++ b/arch/arm/mm/proc-v7-bugs.c
@@ -1,7 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
#include <linux/arm-smccc.h>
#include <linux/kernel.h>
-#include <linux/psci.h>
#include <linux/smp.h>
#include <asm/cp15.h>
@@ -75,11 +74,8 @@ static void cpu_v7_spectre_init(void)
case ARM_CPU_PART_CORTEX_A72: {
struct arm_smccc_res res;
- if (psci_ops.smccc_version == SMCCC_VERSION_1_0)
- break;
-
- switch (psci_ops.conduit) {
- case PSCI_CONDUIT_HVC:
+ switch (arm_smccc_1_1_get_conduit()) {
+ case SMCCC_CONDUIT_HVC:
arm_smccc_1_1_hvc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if ((int)res.a0 != 0)
@@ -90,7 +86,7 @@ static void cpu_v7_spectre_init(void)
spectre_v2_method = "hypervisor";
break;
- case PSCI_CONDUIT_SMC:
+ case SMCCC_CONDUIT_SMC:
arm_smccc_1_1_smc(ARM_SMCCC_ARCH_FEATURES_FUNC_ID,
ARM_SMCCC_ARCH_WORKAROUND_1, &res);
if ((int)res.a0 != 0)