From: Anup Patel <apatel@ventanamicro.com>
To: Atish Patra <atishp@rivosinc.com>
Cc: Andrew Jones <ajones@ventanamicro.com>,
Anup Patel <anup@brainfault.org>,
opensbi@lists.infradead.org, Andrew Waterman <andrew@sifive.com>,
Anup Patel <apatel@ventanamicro.com>
Subject: [PATCH 1/2] lib: sbi: Expose __sbi_sfence_vma_all() function
Date: Thu, 27 Nov 2025 16:51:20 +0530 [thread overview]
Message-ID: <20251127112121.334023-2-apatel@ventanamicro.com> (raw)
In-Reply-To: <20251127112121.334023-1-apatel@ventanamicro.com>
From: Andrew Waterman <andrew@sifive.com>
The __sbi_sfence_vma_all() can be shared by different parts of
OpenSBI so rename __tlb_flush_all() to __sbi_sfence_vma_all()
and make it global function.
Signed-off-by: Andrew Waterman <andrew@sifive.com>
Signed-off-by: Anup Patel <apatel@ventanamicro.com>
---
include/sbi/sbi_tlb.h | 2 ++
lib/sbi/sbi_hart_pmp.c | 3 ++-
lib/sbi/sbi_tlb.c | 4 ++--
3 files changed, 6 insertions(+), 3 deletions(-)
diff --git a/include/sbi/sbi_tlb.h b/include/sbi/sbi_tlb.h
index 2c50fe85..3936e857 100644
--- a/include/sbi/sbi_tlb.h
+++ b/include/sbi/sbi_tlb.h
@@ -54,6 +54,8 @@ do { \
#define SBI_TLB_INFO_SIZE sizeof(struct sbi_tlb_info)
+void __sbi_sfence_vma_all();
+
int sbi_tlb_request(ulong hmask, ulong hbase, struct sbi_tlb_info *tinfo);
int sbi_tlb_init(struct sbi_scratch *scratch, bool cold_boot);
diff --git a/lib/sbi/sbi_hart_pmp.c b/lib/sbi/sbi_hart_pmp.c
index ab96e2fa..1655d87c 100644
--- a/lib/sbi/sbi_hart_pmp.c
+++ b/lib/sbi/sbi_hart_pmp.c
@@ -12,6 +12,7 @@
#include <sbi/sbi_hfence.h>
#include <sbi/sbi_math.h>
#include <sbi/sbi_platform.h>
+#include <sbi/sbi_tlb.h>
#include <sbi/riscv_asm.h>
/*
@@ -74,7 +75,7 @@ static void sbi_hart_pmp_fence(void)
* conditions.
*/
if (misa_extension('S')) {
- __asm__ __volatile__("sfence.vma");
+ __sbi_sfence_vma_all();
/*
* If hypervisor mode is supported, flush caching
diff --git a/lib/sbi/sbi_tlb.c b/lib/sbi/sbi_tlb.c
index 01b31f4e..ada60c32 100644
--- a/lib/sbi/sbi_tlb.c
+++ b/lib/sbi/sbi_tlb.c
@@ -29,7 +29,7 @@ static unsigned long tlb_fifo_off;
static unsigned long tlb_fifo_mem_off;
static unsigned long tlb_range_flush_limit;
-static void tlb_flush_all(void)
+void __sbi_sfence_vma_all(void)
{
__asm__ __volatile("sfence.vma");
}
@@ -86,7 +86,7 @@ static void sbi_tlb_local_sfence_vma(struct sbi_tlb_info *tinfo)
sbi_pmu_ctr_incr_fw(SBI_PMU_FW_SFENCE_VMA_RCVD);
if ((start == 0 && size == 0) || (size == SBI_TLB_FLUSH_ALL)) {
- tlb_flush_all();
+ __sbi_sfence_vma_all();
return;
}
--
2.43.0
--
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next prev parent reply other threads:[~2025-11-27 11:21 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-11-27 11:21 [PATCH 0/2] OpenSBI FWFT ADUE update fix Anup Patel
2025-11-27 11:21 ` Anup Patel [this message]
2025-11-27 11:21 ` [PATCH 2/2] lib: sbi: Flush TLBs upon FWFT ADUE change Anup Patel
2025-12-16 14:55 ` [PATCH 0/2] OpenSBI FWFT ADUE update fix Anup Patel
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