lib: Invalid all tlb entries to workaroud c920 bug

Signed-off-by: Xiaoguang Xing <[email protected]>
sophgo · Aug 29, 2024 · b351b88 · b351b88
1 parent 14a44c3
commit b351b88
Showing 1 changed file with 6 additions and 0 deletions.
diff --git a/lib/sbi/sbi_tlb.c b/lib/sbi/sbi_tlb.c
@@ -79,6 +79,7 @@ static void sbi_tlb_local_hfence_gvma(struct sbi_tlb_info *tinfo)
 
 static void sbi_tlb_local_sfence_vma(struct sbi_tlb_info *tinfo)
 {
+#if 0
 	unsigned long start = tinfo->start;
 	unsigned long size  = tinfo->size;
 	unsigned long i;
@@ -96,6 +97,11 @@ static void sbi_tlb_local_sfence_vma(struct sbi_tlb_info *tinfo)
 				     : "r"(start + i)
 				     : "memory");
 	}
+#else
+	sbi_pmu_ctr_incr_fw(SBI_PMU_FW_SFENCE_VMA_RCVD);
+
+	tlb_flush_all();
+#endif
 }
 
 static void sbi_tlb_local_hfence_vvma_asid(struct sbi_tlb_info *tinfo)