diff options
Diffstat (limited to 'plat/compat/aarch64/plat_helpers_compat.S')
| -rw-r--r-- | plat/compat/aarch64/plat_helpers_compat.S | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/plat/compat/aarch64/plat_helpers_compat.S b/plat/compat/aarch64/plat_helpers_compat.S new file mode 100644 index 00000000..0c5551bc --- /dev/null +++ b/plat/compat/aarch64/plat_helpers_compat.S @@ -0,0 +1,47 @@ +/* + * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#include <arch.h> +#include <asm_macros.S> +#include <assert_macros.S> +#include <platform_def.h> + + .globl plat_my_core_pos + .globl plat_is_my_cpu_primary + .globl plat_get_my_entrypoint + .weak platform_get_core_pos + + /* ----------------------------------------------------- + * Compatibility wrappers for new platform APIs. + * ----------------------------------------------------- + */ +func plat_my_core_pos + mrs x0, mpidr_el1 + b platform_get_core_pos +endfunc plat_my_core_pos + +func plat_is_my_cpu_primary + mrs x0, mpidr_el1 + b platform_is_primary_cpu +endfunc plat_is_my_cpu_primary + +func plat_get_my_entrypoint + mrs x0, mpidr_el1 + b platform_get_entrypoint +endfunc plat_get_my_entrypoint + + /* ----------------------------------------------------- + * int platform_get_core_pos(int mpidr); + * With this function: CorePos = (ClusterId * 4) + + * CoreId + * ----------------------------------------------------- + */ +func platform_get_core_pos + and x1, x0, #MPIDR_CPU_MASK + and x0, x0, #MPIDR_CLUSTER_MASK + add x0, x1, x0, LSR #6 + ret +endfunc platform_get_core_pos |