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perf(cpus): inline the init_cpu_data_ptr function

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Similar to the reset function inline, inline this too to not do a costly
branch with no extra cost.

Change-Id: I54cc399e570e9d0f373ae13c7224d32dbdfae1e5
Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com>
This commit is contained in:
Boyan Karatotev 2024-11-19 11:27:01 +00:00
parent 0d020822ae
commit b07c317f67
3 changed files with 5 additions and 24 deletions
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4
include/arch/aarch64/el3_common_macros.S
View file

@ -49,7 +49,9 @@
* due to a NULL TPIDR_EL3.
* ---------------------------------------------------------------------
*/
bl init_cpu_data_ptr
bl plat_my_core_pos
bl _cpu_data_by_index
msr tpidr_el3, x0
#endif /* IMAGE_BL31 */
/* ---------------------------------------------------------------------

3
include/lib/el3_runtime/cpu_data.h
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2014-2024, Arm Limited and Contributors. All rights reserved.
* Copyright (c) 2014-2025, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -230,7 +230,6 @@ static inline context_pas_t get_cpu_context_index(uint32_t security_state)
* APIs for initialising and accessing per-cpu data
*************************************************************************/
void init_cpu_data_ptr(void);
void init_cpu_ops(void);
#define get_cpu_data(_m) _cpu_data()->_m

22
lib/el3_runtime/aarch64/cpu_data.S
View file

@ -1,5 +1,5 @@
/*
* Copyright (c) 2014-2020, Arm Limited and Contributors. All rights reserved.
* Copyright (c) 2014-2025, Arm Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
@ -7,28 +7,8 @@
#include <asm_macros.S>
#include <lib/el3_runtime/cpu_data.h>
.globl init_cpu_data_ptr
.globl _cpu_data_by_index
/* -----------------------------------------------------------------
* void init_cpu_data_ptr(void)
*
* Initialise the TPIDR_EL3 register to refer to the cpu_data_t
* for the calling CPU. This must be called before cm_get_cpu_data()
*
* This can be called without a valid stack. It assumes that
* plat_my_core_pos() does not clobber register x10.
* clobbers: x0, x1, x10
* -----------------------------------------------------------------
*/
func init_cpu_data_ptr
mov x10, x30
bl plat_my_core_pos
bl _cpu_data_by_index
msr tpidr_el3, x0
ret x10
endfunc init_cpu_data_ptr
/* -----------------------------------------------------------------
* cpu_data_t *_cpu_data_by_index(uint32_t cpu_index)
*