diff options
Diffstat (limited to 'mali_kbase/mali_kbase_mem_migrate.c')
| -rw-r--r-- | mali_kbase/mali_kbase_mem_migrate.c | 30 |
1 files changed, 17 insertions, 13 deletions
diff --git a/mali_kbase/mali_kbase_mem_migrate.c b/mali_kbase/mali_kbase_mem_migrate.c index 6638b76..26ddeed 100644 --- a/mali_kbase/mali_kbase_mem_migrate.c +++ b/mali_kbase/mali_kbase_mem_migrate.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note /* * - * (C) COPYRIGHT 2022-2023 ARM Limited. All rights reserved. + * (C) COPYRIGHT 2022-2024 ARM Limited. All rights reserved. * * This program is free software and is provided to you under the terms of the * GNU General Public License version 2 as published by the Free Software @@ -28,6 +28,9 @@ #include <mali_kbase_mem_migrate.h> #include <mmu/mali_kbase_mmu.h> +/* Static key used to determine if page migration is enabled or not */ +static DEFINE_STATIC_KEY_FALSE(page_migration_static_key); + /* Global integer used to determine if module parameter value has been * provided and if page migration feature is enabled. * Feature is disabled on all platforms by default. @@ -50,15 +53,6 @@ MODULE_PARM_DESC(kbase_page_migration_enabled, KBASE_EXPORT_TEST_API(kbase_page_migration_enabled); -bool kbase_is_page_migration_enabled(void) -{ - /* Handle uninitialised int case */ - if (kbase_page_migration_enabled < 0) - return false; - return IS_ENABLED(CONFIG_PAGE_MIGRATION_SUPPORT) && kbase_page_migration_enabled; -} -KBASE_EXPORT_SYMBOL(kbase_is_page_migration_enabled); - #if (KERNEL_VERSION(6, 0, 0) <= LINUX_VERSION_CODE) static const struct movable_operations movable_ops; #endif @@ -679,11 +673,15 @@ void kbase_mem_migrate_init(struct kbase_device *kbdev) * integer for a negative value to see if insmod parameter was * passed in at all (it will override the default negative value). */ - if (kbase_page_migration_enabled < 0) - kbase_page_migration_enabled = kbdev->pagesize_2mb ? 1 : 0; - else + if (kbase_page_migration_enabled < 0) { + if (kbase_is_large_pages_enabled()) + static_branch_enable(&page_migration_static_key); + } else { dev_info(kbdev->dev, "Page migration support explicitly %s at insmod.", kbase_page_migration_enabled ? "enabled" : "disabled"); + if (kbase_page_migration_enabled) + static_branch_enable(&page_migration_static_key); + } spin_lock_init(&mem_migrate->free_pages_lock); INIT_LIST_HEAD(&mem_migrate->free_pages_list); @@ -708,3 +706,9 @@ void kbase_mem_migrate_term(struct kbase_device *kbdev) iput(mem_migrate->inode); #endif } + +bool kbase_is_page_migration_enabled(void) +{ + return static_branch_unlikely(&page_migration_static_key); +} +KBASE_EXPORT_TEST_API(kbase_is_page_migration_enabled); |