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lib: Factor-out TLB management from IPI management

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This patch factor-out TLB management from IPI management to separate
sources sbi_tlb.c and sbi_tlb.h.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2019-05-24 07:58:05 +05:30
committed by Anup Patel
parent 2dfed32c46
commit 95b7480ab4
7 changed files with 292 additions and 207 deletions
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3
include/sbi/riscv_asm.h
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@@ -32,9 +32,6 @@
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE - 1))
#define SBI_TLB_FLUSH_ALL ((unsigned long)-1)
#define SBI_TLB_FLUSH_MAX_SIZE (1UL << 30)
#define REG_L __REG_SEL(ld, lw)
#define REG_S __REG_SEL(sd, sw)
#define SZREG __REG_SEL(8, 4)

16
include/sbi/sbi_ipi.h
View File

@@ -22,28 +22,12 @@
/* clang-format on */
#define SBI_TLB_FIFO_NUM_ENTRIES 4
enum sbi_tlb_info_types {
SBI_TLB_FLUSH_VMA,
SBI_TLB_FLUSH_VMA_ASID,
SBI_TLB_FLUSH_VMA_VMID
};
struct sbi_scratch;
struct sbi_ipi_data {
unsigned long ipi_type;
};
struct sbi_tlb_info {
unsigned long start;
unsigned long size;
unsigned long asid;
unsigned long type;
};
#define SBI_TLB_INFO_SIZE sizeof(struct sbi_tlb_info)
int sbi_ipi_send_many(struct sbi_scratch *scratch, ulong *pmask, u32 event,
void *data);

48
include/sbi/sbi_tlb.h Normal file
View File

@@ -0,0 +1,48 @@
/*
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
*
* Authors:
* Atish Patra <atish.patra@wdc.com>
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __SBI_TLB_H__
#define __SBI_TLB_H__
#include <sbi/sbi_types.h>
/* clang-format off */
#define SBI_TLB_FLUSH_ALL ((unsigned long)-1)
#define SBI_TLB_FLUSH_MAX_SIZE (1UL << 30)
/* clang-format on */
#define SBI_TLB_FIFO_NUM_ENTRIES 4
enum sbi_tlb_info_types {
SBI_TLB_FLUSH_VMA,
SBI_TLB_FLUSH_VMA_ASID,
SBI_TLB_FLUSH_VMA_VMID
};
struct sbi_scratch;
struct sbi_tlb_info {
unsigned long start;
unsigned long size;
unsigned long asid;
unsigned long type;
};
#define SBI_TLB_INFO_SIZE sizeof(struct sbi_tlb_info)
int sbi_tlb_fifo_update(struct sbi_scratch *scratch, u32 event, void *data);
void sbi_tlb_fifo_process(struct sbi_scratch *scratch, u32 event);
int sbi_tlb_fifo_init(struct sbi_scratch *scratch, bool cold_boot);
#endif