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lib: Introduce sbi_tlb_fifo_request() API

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Instead of directly calling sbi_ipi_send_many(), we introduce
sbi_tlb_fifo_request() for halting a set of HARTs.

This way in future we can assign any IPI event number for remote
FENCE within sbi_tlb.c only.

Signed-off-by: Anup Patel <anup.patel@wdc.com>
Reviewed-by: Atish Patra <atish.patra@wdc.com>
This commit is contained in:
Anup Patel
2020-01-15 11:42:51 +05:30
committed by Anup Patel
parent da9b76b957
commit a8b4b83b7f
4 changed files with 33 additions and 36 deletions
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53
lib/sbi/sbi_ecall.c
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@@ -180,17 +180,16 @@ int sbi_ecall_rfence_handler(struct sbi_scratch *scratch, unsigned long funcid,
tlb_info.size = 0;
tlb_info.type = SBI_ITLB_FLUSH;
tlb_info.shart_mask = 1UL << source_hart;
ret = sbi_ipi_send_many(scratch, args[0], args[1],
SBI_IPI_EVENT_FENCE, &tlb_info);
ret = sbi_tlb_fifo_request(scratch, args[0], args[1],
&tlb_info);
break;
case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA:
tlb_info.start = (unsigned long)args[2];
tlb_info.size = (unsigned long)args[3];
tlb_info.type = SBI_TLB_FLUSH_GVMA;
tlb_info.shart_mask = 1UL << source_hart;
ret = sbi_ipi_send_many(scratch, args[0], args[1],
SBI_IPI_EVENT_FENCE, &tlb_info);
ret = sbi_tlb_fifo_request(scratch, args[0], args[1],
&tlb_info);
break;
case SBI_EXT_RFENCE_REMOTE_HFENCE_GVMA_VMID:
tlb_info.start = (unsigned long)args[2];
@@ -198,19 +197,16 @@ int sbi_ecall_rfence_handler(struct sbi_scratch *scratch, unsigned long funcid,
tlb_info.asid = (unsigned long)args[4];
tlb_info.type = SBI_TLB_FLUSH_GVMA_VMID;
tlb_info.shart_mask = 1UL << source_hart;
ret = sbi_ipi_send_many(scratch, args[0], args[1],
SBI_IPI_EVENT_FENCE,
&tlb_info);
ret = sbi_tlb_fifo_request(scratch, args[0], args[1],
&tlb_info);
break;
case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA:
tlb_info.start = (unsigned long)args[2];
tlb_info.size = (unsigned long)args[3];
tlb_info.type = SBI_TLB_FLUSH_VVMA;
tlb_info.shart_mask = 1UL << source_hart;
ret = sbi_ipi_send_many(scratch, args[0], args[1],
SBI_IPI_EVENT_FENCE, &tlb_info);
ret = sbi_tlb_fifo_request(scratch, args[0], args[1],
&tlb_info);
break;
case SBI_EXT_RFENCE_REMOTE_HFENCE_VVMA_ASID:
tlb_info.start = (unsigned long)args[2];
@@ -218,19 +214,16 @@ int sbi_ecall_rfence_handler(struct sbi_scratch *scratch, unsigned long funcid,
tlb_info.asid = (unsigned long)args[4];
tlb_info.type = SBI_TLB_FLUSH_VVMA_ASID;
tlb_info.shart_mask = 1UL << source_hart;
ret = sbi_ipi_send_many(scratch, args[0], args[1],
SBI_IPI_EVENT_FENCE,
&tlb_info);
ret = sbi_tlb_fifo_request(scratch, args[0], args[1],
&tlb_info);
break;
case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA:
tlb_info.start = (unsigned long)args[2];
tlb_info.size = (unsigned long)args[3];
tlb_info.type = SBI_TLB_FLUSH_VMA;
tlb_info.shart_mask = 1UL << source_hart;
ret = sbi_ipi_send_many(scratch, args[0], args[1],
SBI_IPI_EVENT_FENCE, &tlb_info);
ret = sbi_tlb_fifo_request(scratch, args[0], args[1],
&tlb_info);
break;
case SBI_EXT_RFENCE_REMOTE_SFENCE_VMA_ASID:
tlb_info.start = (unsigned long)args[2];
@@ -238,10 +231,8 @@ int sbi_ecall_rfence_handler(struct sbi_scratch *scratch, unsigned long funcid,
tlb_info.asid = (unsigned long)args[4];
tlb_info.type = SBI_TLB_FLUSH_VMA_ASID;
tlb_info.shart_mask = 1UL << source_hart;
ret = sbi_ipi_send_many(scratch, args[0], args[1],
SBI_IPI_EVENT_FENCE,
&tlb_info);
ret = sbi_tlb_fifo_request(scratch, args[0], args[1],
&tlb_info);
break;
default:
@@ -291,9 +282,8 @@ int sbi_ecall_0_1_handler(struct sbi_scratch *scratch, unsigned long extid,
ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
&hmask, out_trap);
if (ret != SBI_ETRAP)
ret = sbi_ipi_send_many(scratch, hmask, 0,
SBI_IPI_EVENT_FENCE,
&tlb_info);
ret = sbi_tlb_fifo_request(scratch, hmask, 0,
&tlb_info);
break;
case SBI_EXT_0_1_REMOTE_SFENCE_VMA:
tlb_info.start = (unsigned long)args[1];
@@ -303,9 +293,8 @@ int sbi_ecall_0_1_handler(struct sbi_scratch *scratch, unsigned long extid,
ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
&hmask, out_trap);
if (ret != SBI_ETRAP)
ret = sbi_ipi_send_many(scratch, hmask, 0,
SBI_IPI_EVENT_FENCE,
&tlb_info);
ret = sbi_tlb_fifo_request(scratch, hmask, 0,
&tlb_info);
break;
case SBI_EXT_0_1_REMOTE_SFENCE_VMA_ASID:
tlb_info.start = (unsigned long)args[1];
@@ -313,13 +302,11 @@ int sbi_ecall_0_1_handler(struct sbi_scratch *scratch, unsigned long extid,
tlb_info.asid = (unsigned long)args[3];
tlb_info.type = SBI_TLB_FLUSH_VMA_ASID;
tlb_info.shart_mask = 1UL << source_hart;
ret = sbi_load_hart_mask_unpriv(scratch, (ulong *)args[0],
&hmask, out_trap);
if (ret != SBI_ETRAP)
ret = sbi_ipi_send_many(scratch, hmask, 0,
SBI_IPI_EVENT_FENCE,
&tlb_info);
ret = sbi_tlb_fifo_request(scratch, hmask, 0,
&tlb_info);
break;
case SBI_EXT_0_1_SHUTDOWN:
sbi_system_shutdown(scratch, 0);