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6184858b85
As a preparation for turning reserve_mmu into an arch-specific variant, introduce arm_reserve_mmu on ARM. It implements the default routine for reserving memory for MMU TLB and needs to be weakly defined in order to allow for machines to override it. Without this decoupling, after introducing arch_reserve_mmu, there would be two weak definitions for it, one in common/board_f.c and one in arch/arm/lib/cache.c. Signed-off-by: Ovidiu Panait <ovpanait@gmail.com> Reviewed-by: Simon Glass <sjg@chromium.org>
64 lines
1.5 KiB
C
64 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* (C) Copyright 2009
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* Marvell Semiconductor <www.marvell.com>
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* Written-by: Prafulla Wadaskar <prafulla@marvell.com>
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*/
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#ifndef _ASM_CACHE_H
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#define _ASM_CACHE_H
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#include <asm/system.h>
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#ifndef CONFIG_ARM64
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/*
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* Invalidate L2 Cache using co-proc instruction
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*/
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#if CONFIG_IS_ENABLED(SYS_THUMB_BUILD)
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void invalidate_l2_cache(void);
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#else
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static inline void invalidate_l2_cache(void)
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{
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unsigned int val=0;
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asm volatile("mcr p15, 1, %0, c15, c11, 0 @ invl l2 cache"
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: : "r" (val) : "cc");
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isb();
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}
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#endif
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int check_cache_range(unsigned long start, unsigned long stop);
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void l2_cache_enable(void);
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void l2_cache_disable(void);
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void set_section_dcache(int section, enum dcache_option option);
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void arm_init_before_mmu(void);
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void arm_init_domains(void);
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void cpu_cache_initialization(void);
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void dram_bank_mmu_setup(int bank);
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#endif
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/*
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* The value of the largest data cache relevant to DMA operations shall be set
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* for us in CONFIG_SYS_CACHELINE_SIZE. In some cases this may be a larger
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* value than found in the L1 cache but this is OK to use in terms of
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* alignment.
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*/
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#define ARCH_DMA_MINALIGN CONFIG_SYS_CACHELINE_SIZE
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/*
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* arm_reserve_mmu() - Reserve memory for MMU TLB table
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*
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* Default implementation for reserving memory for MMU TLB table. It is used
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* during generic board init sequence in common/board_f.c. Weakly defined, so
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* that machines can override it if needed.
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*
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* Return: 0 if OK
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*/
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int arm_reserve_mmu(void);
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#endif /* _ASM_CACHE_H */
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