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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
#define SBI_IPI_EVENT_FENCE_I 0x2
#define SBI_IPI_EVENT_SFENCE_VMA 0x4
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_SFENCE_VMA_ASID 0x8
#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: Better naming of unpriv APIs for wider use The unpriv APIs can be useful to external firmware and out-of-tree platform support code. This patch adds "sbi_" prefix to unpriv load/store APIs and rename struct riscv_unpriv to struct sbi_trap_info everywhere. We also place struct sbi_trap_info in sbi/sbi_trap.h so that we can use it for sbi_trap_redirect() as well. Overall, this patch will make naming of unpriv APIs consistent with other OpenSBI APIs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2019-11-17 16:46:24 +08:00
struct sbi_trap_info;
Initial commit. Signed-off-by: Anup Patel <anup.patel@wdc.com>
2018-12-11 21:54:06 +08:00
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
struct sbi_ipi_data {
unsigned long ipi_type;
};
lib: Better naming of unpriv APIs for wider use The unpriv APIs can be useful to external firmware and out-of-tree platform support code. This patch adds "sbi_" prefix to unpriv load/store APIs and rename struct riscv_unpriv to struct sbi_trap_info everywhere. We also place struct sbi_trap_info in sbi/sbi_trap.h so that we can use it for sbi_trap_redirect() as well. Overall, this patch will make naming of unpriv APIs consistent with other OpenSBI APIs. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2019-11-17 16:46:24 +08:00
int sbi_ipi_send_many(struct sbi_scratch *scratch,
struct sbi_trap_info *uptrap,
lib: Handle page/access fault caused by unpriv load/store The unpriv load/store instruction from M-mode can cause page/access fault to M-mode if S-mode page table did not have mappings OR it did not have PMP access permission. To tackle this, we redirect trap back to S-mode if unpriv load/store instruction traps in M-mode. Signed-off-by: Anup Patel <anup.patel@wdc.com> Reviewed-by: Atish Patra <atish.patra@wdc.com>
2019-05-23 16:00:58 +08:00
ulong *pmask, u32 event, void *data);
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
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: 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
#endif