55 lines
890 B
ArmAsm
55 lines
890 B
ArmAsm
/*
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* Copyright (C) 2000 Murray Jensen <Murray.Jensen@cmst.csiro.au>
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#include <config.h>
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#include <command.h>
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#include <mpc8xx.h>
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#include <ppc_asm.tmpl>
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#include <ppc_defs.h>
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#include <asm/cache.h>
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#include <asm/mmu.h>
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#if defined(CONFIG_CMD_KGDB)
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/*
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* cache flushing routines for kgdb
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*/
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.globl kgdb_flush_cache_all
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kgdb_flush_cache_all:
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lis r3, IDC_INVALL@h
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mtspr DC_CST, r3
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sync
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lis r3, IDC_INVALL@h
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mtspr IC_CST, r3
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SYNC
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blr
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.globl kgdb_flush_cache_range
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kgdb_flush_cache_range:
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li r5,CONFIG_SYS_CACHELINE_SIZE-1
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andc r3,r3,r5
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subf r4,r3,r4
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add r4,r4,r5
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srwi. r4,r4,CONFIG_SYS_CACHELINE_SHIFT
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beqlr
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mtctr r4
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mr r6,r3
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1: dcbst 0,r3
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addi r3,r3,CONFIG_SYS_CACHELINE_SIZE
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bdnz 1b
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sync /* wait for dcbst's to get to ram */
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mtctr r4
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2: icbi 0,r6
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addi r6,r6,CONFIG_SYS_CACHELINE_SIZE
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bdnz 2b
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SYNC
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blr
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#endif
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