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25bbbd2d63
Enable basic support for Neoverse-N2 CPUs. Signed-off-by: Javier Almansa Sobrino <javier.almansasobrino@arm.com> Change-Id: I498adc2d9fc61ac6e1af8ece131039410872e8ad
26 lines
534 B
ArmAsm
26 lines
534 B
ArmAsm
/*
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* Copyright (c) 2020, Arm Limited. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#include <asm_macros.S>
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#include <neoverse_n_common.h>
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.global is_scu_present_in_dsu
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/*
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* Check if the SCU L3 Unit is present on the DSU
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* 1-> SCU present
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* 0-> SCU not present
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*
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* This function is implemented as weak on dsu_helpers.S and must be
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* overwritten for Neoverse Nx cores.
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*/
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func is_scu_present_in_dsu
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mrs x0, CPUCFR_EL1
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ubfx x0, x0, #SCU_SHIFT, #1
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eor x0, x0, #1
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ret
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endfunc is_scu_present_in_dsu
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