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opensbi/include/sbi/sbi_ipi.h

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Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
/*
all: Update copyright header in all files This patch updates copyright header in all files as follows: 1. Makes "SPDX-License-Identifier: BSD-2-Clause" as first line 2. Change copyright year to 2019 for Western Digital Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-24 14:11:10 +08:00
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2019 Western Digital Corporation or its affiliates.
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
*
* Authors:
* Anup Patel <anup.patel@wdc.com>
*/
#ifndef __SBI_IPI_H__
#define __SBI_IPI_H__
#include <sbi/sbi_types.h>
all: Annotate some tables to have clang-format leave them alone One of the shortcomings of clang-format is that it doesn't allow for aligned define tables, which is used for a number of constants. Add annotation to disable the automatic formatting where needed. Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-11 08:41:46 +08:00
/* clang-format off */
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
#define SBI_IPI_EVENT_SOFT 0x1
lib: Remove redundant IPI types We just need to distinguish only between FENCE and non FENCE related IPIs as all of the fence related requests are handled via fifo now. Remove the unnecessary IPI types related to individual fence types. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-11-25 15:33:45 +08:00
#define SBI_IPI_EVENT_FENCE 0x2
lib: Implement sfence.vma correctly. Currently, OpenSBI doesn't distinguish between sfence.vma and sfence.vm asid calls. Moreover, it ignores the page ranges and just flush entire TLB everytime. Fix the sfence implementation by keeping all the tlb flush info in scratch area. The relevant Linux kernel code was added by https://patchwork.kernel.org/project/linux-riscv/list/?series=89695 However, this patch is backward compatible with older version kernel that doesn't have the above patches as well. Fixes #87 Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-03-10 04:57:20 +08:00
#define SBI_IPI_EVENT_HALT 0x10
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
all: Annotate some tables to have clang-format leave them alone One of the shortcomings of clang-format is that it doesn't allow for aligned define tables, which is used for a number of constants. Add annotation to disable the automatic formatting where needed. Signed-off-by: Olof Johansson <olof@lixom.net>
2019-04-11 08:41:46 +08:00
/* clang-format on */
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
struct sbi_scratch;
lib: Implement sfence.vma correctly. Currently, OpenSBI doesn't distinguish between sfence.vma and sfence.vm asid calls. Moreover, it ignores the page ranges and just flush entire TLB everytime. Fix the sfence implementation by keeping all the tlb flush info in scratch area. The relevant Linux kernel code was added by https://patchwork.kernel.org/project/linux-riscv/list/?series=89695 However, this patch is backward compatible with older version kernel that doesn't have the above patches as well. Fixes #87 Signed-off-by: Atish Patra <atish.patra@wdc.com>
2019-03-10 04:57:20 +08:00
lib: Add IPI extension in SBI This patch adds new IPI extension which replaces ipi related v0.1 extensions. This also adds a new API for ipi sending as trap handling is not necessary in v0.2 SBI IPI related extensions. It also modifies the IPI sending code which now accepts hart mask as a value instead of S-mode virtual address. Thus, the caller should set it to exact hart mask value everytime. Signed-off-by: Atish Patra <atish.patra@wdc.com> Reviewed-by: Anup Patel <anup.patel@wdc.com>
2019-11-25 15:33:47 +08:00
int sbi_ipi_send_many(struct sbi_scratch *scratch, ulong hmask,
ulong hbase, u32 event, void *data);
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
lib: Introduce sbi_ipi_send_smode() API Instead of directly calling sbi_ipi_send_many(), we introduce sbi_ipi_send_smode() for injecting S-mode software interrupts. This way in future we can assign any IPI event number for S-mode IPIs within sbi_ipi.c only. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-01-15 13:32:14 +08:00
int sbi_ipi_send_smode(struct sbi_scratch *scratch, ulong hmask, ulong hbase);
lib: Remove source_hart and hartid parameter from IPI callbacks The source_hart and hartid parameter is really not required in IPI callbacks of sbi_platform because current hartid can always be obtained by calling sbi_current_hartid() API. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-22 16:50:59 +08:00
void sbi_ipi_clear_smode(struct sbi_scratch *scratch);
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
lib: Introduce sbi_ipi_send_halt() API Instead of directly calling sbi_ipi_send_many(), we introduce sbi_ipi_send_halt() for halting a set of HARTs. This way in future we can assign any IPI event number for HART halting within sbi_ipi.c only. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-01-15 13:46:54 +08:00
int sbi_ipi_send_halt(struct sbi_scratch *scratch, ulong hmask, ulong hbase);
lib: Remove source_hart and hartid parameter from IPI callbacks The source_hart and hartid parameter is really not required in IPI callbacks of sbi_platform because current hartid can always be obtained by calling sbi_current_hartid() API. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-22 16:50:59 +08:00
void sbi_ipi_process(struct sbi_scratch *scratch);
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
lib: Remove source_hart and hartid parameter from IPI callbacks The source_hart and hartid parameter is really not required in IPI callbacks of sbi_platform because current hartid can always be obtained by calling sbi_current_hartid() API. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2019-01-22 16:50:59 +08:00
int sbi_ipi_init(struct sbi_scratch *scratch, bool cold_boot);
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
lib: Add ipi exit API We add sbi_ipi_exit() API for exit path handling in sbi_exit() implementation. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2020-01-03 12:09:10 +08:00
void sbi_ipi_exit(struct sbi_scratch *scratch);
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
#endif