From fb92c39cc4ff1efb5d6ad229c6977e1a9f2320cf Mon Sep 17 00:00:00 2001 From: Mark Rutland Date: Wed, 22 Apr 2015 16:22:55 +0100 Subject: arm64: psci: remove unnecessary id indirection PSCI 0.1 did not define canonical IDs for CPU_ON, CPU_OFF, CPU_SUSPEND, or MIGRATE, and so these need to be provided when using firmware compliant to PSCI 0.1. However, functions introduced in 0.2 or later have canonical IDs, and these cannot be provided via DT. There's no need to indirect the IDs via a table; they can be used directly at callsites (and already are for SYSTEM_OFF and SYSTEM_RESET). This patch removes the unnecessary function ID indirection for AFFINITY_INFO and MIGRATE_INFO_TYPE. Signed-off-by: Mark Rutland Acked-by: Catalin Marinas Acked-by: Lorenzo Pieralisi Reviewed-by: Hanjun Guo Tested-by: Hanjun Guo Cc: Will Deacon (cherry picked from commit 2a7cd0ebfc0a5ac2e692e63871e0ff6a50d5de46) Signed-off-by: Alex Shi --- arch/arm64/kernel/psci.c | 20 +++----------------- 1 file changed, 3 insertions(+), 17 deletions(-) diff --git a/arch/arm64/kernel/psci.c b/arch/arm64/kernel/psci.c index 9683f47efabe..85790b25925a 100644 --- a/arch/arm64/kernel/psci.c +++ b/arch/arm64/kernel/psci.c @@ -67,8 +67,6 @@ enum psci_function { PSCI_FN_CPU_ON, PSCI_FN_CPU_OFF, PSCI_FN_MIGRATE, - PSCI_FN_AFFINITY_INFO, - PSCI_FN_MIGRATE_INFO_TYPE, PSCI_FN_MAX, }; @@ -168,22 +166,13 @@ static int psci_migrate(unsigned long cpuid) static int psci_affinity_info(unsigned long target_affinity, unsigned long lowest_affinity_level) { - int err; - u32 fn; - - fn = psci_function_id[PSCI_FN_AFFINITY_INFO]; - err = invoke_psci_fn(fn, target_affinity, lowest_affinity_level, 0); - return err; + return invoke_psci_fn(PSCI_0_2_FN64_AFFINITY_INFO, target_affinity, + lowest_affinity_level, 0); } static int psci_migrate_info_type(void) { - int err; - u32 fn; - - fn = psci_function_id[PSCI_FN_MIGRATE_INFO_TYPE]; - err = invoke_psci_fn(fn, 0, 0, 0); - return err; + return invoke_psci_fn(PSCI_0_2_FN_MIGRATE_INFO_TYPE, 0, 0, 0); } static int __maybe_unused cpu_psci_cpu_init_idle(unsigned int cpu) @@ -293,11 +282,8 @@ static void __init psci_0_2_set_functions(void) psci_function_id[PSCI_FN_MIGRATE] = PSCI_0_2_FN64_MIGRATE; psci_ops.migrate = psci_migrate; - psci_function_id[PSCI_FN_AFFINITY_INFO] = PSCI_0_2_FN64_AFFINITY_INFO; psci_ops.affinity_info = psci_affinity_info; - psci_function_id[PSCI_FN_MIGRATE_INFO_TYPE] = - PSCI_0_2_FN_MIGRATE_INFO_TYPE; psci_ops.migrate_info_type = psci_migrate_info_type; arm_pm_restart = psci_sys_reset; -- cgit v1.2.3