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| author | Vivian Wang <dramforever@live.com> | 2022-11-09 09:53:37 +0300 |
|---|---|---|
| committer | Anup Patel <anup@brainfault.org> | 2022-11-15 14:14:03 +0300 |
| commit | 14f5c4cb4d2b9a5839a156c957f77a19a2f3eda7 (patch) | |
| tree | 4dada732c9e07ab3bf4aadff4c68a60cbe729f0f /lib/sbi/sbi_ecall_rfence.c | |
| parent | 7b29264f11b8ac9aef0df23122feed763f803779 (diff) | |
| download | opensbi-14f5c4cb4d2b9a5839a156c957f77a19a2f3eda7.tar.xz | |
lib: sbi_ecall: Split up sbi_ecall_replace
Split up sbi_ecall_replace so that each extension is in its individual
file.
Also reorganize the corresponding section in lib/sbi/objects.mk so
that it is grouped by extension, now that the object file targets are
split up.
Signed-off-by: Vivian Wang <dramforever@live.com>
Reviewed-by: Anup Patel <anup@brainfault.org>
Diffstat (limited to 'lib/sbi/sbi_ecall_rfence.c')
| -rw-r--r-- | lib/sbi/sbi_ecall_rfence.c | 86 |
1 files changed, 86 insertions, 0 deletions
diff --git a/lib/sbi/sbi_ecall_rfence.c b/lib/sbi/sbi_ecall_rfence.c new file mode 100644 index 0000000..8f0e3d7 --- /dev/null +++ b/lib/sbi/sbi_ecall_rfence.c @@ -0,0 +1,86 @@ +/* + * SPDX-License-Identifier: BSD-2-Clause + * + * Copyright (c) 2020 Western Digital Corporation or its affiliates. + * + * Authors: + * Anup Patel <anup.patel@wdc.com> + * Atish Patra <atish.patra@wdc.com> + */ + +#include <sbi/riscv_asm.h> +#include <sbi/sbi_error.h> +#include <sbi/sbi_ecall.h> +#include <sbi/sbi_ecall_interface.h> +#include <sbi/sbi_trap.h> +#include <sbi/sbi_tlb.h> + +static int sbi_ecall_rfence_handler(unsigned long extid, unsigned long funcid, + const struct sbi_trap_regs *regs, + unsigned long *out_val, + struct sbi_trap_info *out_trap) +{ + int ret = 0; + unsigned long vmid; + struct sbi_tlb_info tlb_info; + u32 source_hart = current_hartid(); + + if (funcid >= SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID && + funcid <= SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA) + if (!misa_extension('H')) + return SBI_ENOTSUPP; + + switch (funcid) { + case SBI_EXT_RFENCE_REMOTE_FENCE_I: + SBI_TLB_INFO_INIT(&tlb_info, 0, 0, 0, 0, + sbi_tlb_local_fence_i, source_hart); + ret = sbi_tlb_request(regs->a0, regs->a1, &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA: + SBI_TLB_INFO_INIT(&tlb_info, regs->a2, regs->a3, 0, 0, + sbi_tlb_local_hfence_gvma, source_hart); + ret = sbi_tlb_request(regs->a0, regs->a1, &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID: + SBI_TLB_INFO_INIT(&tlb_info, regs->a2, regs->a3, 0, regs->a4, + sbi_tlb_local_hfence_gvma_vmid, + source_hart); + ret = sbi_tlb_request(regs->a0, regs->a1, &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA: + vmid = (csr_read(CSR_HGATP) & HGATP_VMID_MASK); + vmid = vmid >> HGATP_VMID_SHIFT; + SBI_TLB_INFO_INIT(&tlb_info, regs->a2, regs->a3, 0, vmid, + sbi_tlb_local_hfence_vvma, source_hart); + ret = sbi_tlb_request(regs->a0, regs->a1, &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID: + vmid = (csr_read(CSR_HGATP) & HGATP_VMID_MASK); + vmid = vmid >> HGATP_VMID_SHIFT; + SBI_TLB_INFO_INIT(&tlb_info, regs->a2, regs->a3, regs->a4, + vmid, sbi_tlb_local_hfence_vvma_asid, + source_hart); + ret = sbi_tlb_request(regs->a0, regs->a1, &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA: + SBI_TLB_INFO_INIT(&tlb_info, regs->a2, regs->a3, 0, 0, + sbi_tlb_local_sfence_vma, source_hart); + ret = sbi_tlb_request(regs->a0, regs->a1, &tlb_info); + break; + case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID: + SBI_TLB_INFO_INIT(&tlb_info, regs->a2, regs->a3, regs->a4, 0, + sbi_tlb_local_sfence_vma_asid, source_hart); + ret = sbi_tlb_request(regs->a0, regs->a1, &tlb_info); + break; + default: + ret = SBI_ENOTSUPP; + }; + + return ret; +} + +struct sbi_ecall_extension ecall_rfence = { + .extid_start = SBI_EXT_RFENCE, + .extid_end = SBI_EXT_RFENCE, + .handle = sbi_ecall_rfence_handler, +}; |