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5338679ff0
The HFENCE VVMA instructions flushes TLB based on the VMID present in HGATP CSR. To handle this, we get the current VMID for SBI HFENCE VVMA call and we use this current VMID to do remote TLB HFENCE VVMA on desired set of HARTs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
63 lines
1.3 KiB
C
63 lines
1.3 KiB
C
/*
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c) 2019 Western Digital Corporation or its affiliates.
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*
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* Authors:
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* Atish Patra <atish.patra@wdc.com>
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* Anup Patel <anup.patel@wdc.com>
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*/
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#ifndef __SBI_TLB_H__
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#define __SBI_TLB_H__
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#include <sbi/sbi_types.h>
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#include <sbi/sbi_hartmask.h>
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/* clang-format off */
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#define SBI_TLB_FLUSH_ALL ((unsigned long)-1)
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/* clang-format on */
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#define SBI_TLB_FIFO_NUM_ENTRIES 8
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enum sbi_tlb_info_types {
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SBI_TLB_FLUSH_VMA,
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SBI_TLB_FLUSH_VMA_ASID,
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SBI_TLB_FLUSH_GVMA,
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SBI_TLB_FLUSH_GVMA_VMID,
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SBI_TLB_FLUSH_VVMA,
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SBI_TLB_FLUSH_VVMA_ASID,
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SBI_ITLB_FLUSH
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};
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struct sbi_scratch;
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struct sbi_tlb_info {
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unsigned long start;
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unsigned long size;
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unsigned long asid;
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unsigned long vmid;
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unsigned long type;
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struct sbi_hartmask smask;
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};
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#define SBI_TLB_INFO_INIT(__p, __start, __size, __asid, __vmid, __type, __src) \
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do { \
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(__p)->start = (__start); \
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(__p)->size = (__size); \
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(__p)->asid = (__asid); \
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(__p)->vmid = (__vmid); \
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(__p)->type = (__type); \
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SBI_HARTMASK_INIT_EXCEPT(&(__p)->smask, (__src)); \
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} while (0)
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#define SBI_TLB_INFO_SIZE sizeof(struct sbi_tlb_info)
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int sbi_tlb_request(ulong hmask, ulong hbase, struct sbi_tlb_info *tinfo);
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int sbi_tlb_init(struct sbi_scratch *scratch, bool cold_boot);
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#endif
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