diff options
| author | Anup Patel <anup.patel@wdc.com> | 2019-05-24 07:58:05 +0530 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2019-05-24 08:22:47 +0530 |
| commit | 95b7480ab4b438cf545afae200b40012e83f1dda (patch) | |
| tree | 44e30d69d4222833e36d3092005ac0a09b45f391 /include/sbi/sbi_tlb.h | |
| parent | 2dfed32c463eef80a0eea7108117ce18dc80c527 (diff) | |
lib: Factor-out TLB management from IPI management
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>
Diffstat (limited to 'include/sbi/sbi_tlb.h')
| -rw-r--r-- | include/sbi/sbi_tlb.h | 48 |
1 files changed, 48 insertions, 0 deletions
diff --git a/include/sbi/sbi_tlb.h b/include/sbi/sbi_tlb.h new file mode 100644 index 0000000..f3d93d4 --- /dev/null +++ b/include/sbi/sbi_tlb.h @@ -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 |