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lib: sbi: Expose __sbi_sfence_vma_all() function

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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>
Link: https://lore.kernel.org/r/20251127112121.334023-2-apatel@ventanamicro.com
Signed-off-by: Anup Patel <anup@brainfault.org>
This commit is contained in:
Andrew Waterman
2025-11-27 16:51:20 +05:30
committed by Anup Patel
parent 5eec86eec8
commit 843e916dca
3 changed files with 6 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
include/sbi/sbi_tlb.h
View File

@@ -54,6 +54,8 @@ do { \
#define SBI_TLB_INFO_SIZE sizeof(struct sbi_tlb_info) #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_request(ulong hmask, ulong hbase, struct sbi_tlb_info *tinfo);
int sbi_tlb_init(struct sbi_scratch *scratch, bool cold_boot); int sbi_tlb_init(struct sbi_scratch *scratch, bool cold_boot);

3
lib/sbi/sbi_hart_pmp.c
View File

@@ -12,6 +12,7 @@
#include <sbi/sbi_hfence.h> #include <sbi/sbi_hfence.h>
#include <sbi/sbi_math.h> #include <sbi/sbi_math.h>
#include <sbi/sbi_platform.h> #include <sbi/sbi_platform.h>
#include <sbi/sbi_tlb.h>
#include <sbi/riscv_asm.h> #include <sbi/riscv_asm.h>
/* /*
@@ -74,7 +75,7 @@ static void sbi_hart_pmp_fence(void)
* conditions. * conditions.
*/ */
if (misa_extension('S')) { if (misa_extension('S')) {
__asm__ __volatile__("sfence.vma"); __sbi_sfence_vma_all();
/* /*
* If hypervisor mode is supported, flush caching * If hypervisor mode is supported, flush caching

4
lib/sbi/sbi_tlb.c
View File

@@ -29,7 +29,7 @@ static unsigned long tlb_fifo_off;
static unsigned long tlb_fifo_mem_off; static unsigned long tlb_fifo_mem_off;
static unsigned long tlb_range_flush_limit; static unsigned long tlb_range_flush_limit;
static void tlb_flush_all(void) void __sbi_sfence_vma_all(void)
{ {
__asm__ __volatile("sfence.vma"); __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); sbi_pmu_ctr_incr_fw(SBI_PMU_FW_SFENCE_VMA_RCVD);
if ((start == 0 && size == 0) || (size == SBI_TLB_FLUSH_ALL)) { if ((start == 0 && size == 0) || (size == SBI_TLB_FLUSH_ALL)) {
tlb_flush_all(); __sbi_sfence_vma_all();
return; return;
} }