diff options
Diffstat (limited to 'arch/riscv/include/asm')
| -rw-r--r-- | arch/riscv/include/asm/errata_list.h | 10 | ||||
| -rw-r--r-- | arch/riscv/include/asm/tlbflush.h | 3 |
2 files changed, 11 insertions, 2 deletions
diff --git a/arch/riscv/include/asm/errata_list.h b/arch/riscv/include/asm/errata_list.h index 6148d34d4245..5f1046e82d9f 100644 --- a/arch/riscv/include/asm/errata_list.h +++ b/arch/riscv/include/asm/errata_list.h @@ -10,7 +10,8 @@ #ifdef CONFIG_ERRATA_SIFIVE #define ERRATA_SIFIVE_CIP_453 0 -#define ERRATA_SIFIVE_NUMBER 1 +#define ERRATA_SIFIVE_CIP_1200 1 +#define ERRATA_SIFIVE_NUMBER 2 #endif #ifdef __ASSEMBLY__ @@ -26,6 +27,13 @@ ALTERNATIVE(__stringify(RISCV_PTR do_page_fault), \ __stringify(RISCV_PTR sifive_cip_453_page_fault_trp), \ SIFIVE_VENDOR_ID, ERRATA_SIFIVE_CIP_453, \ CONFIG_ERRATA_SIFIVE_CIP_453) +#else /* !__ASSEMBLY__ */ + +#define ALT_FLUSH_TLB_PAGE(x) \ +asm(ALTERNATIVE("sfence.vma %0", "sfence.vma", SIFIVE_VENDOR_ID, \ + ERRATA_SIFIVE_CIP_1200, CONFIG_ERRATA_SIFIVE_CIP_1200) \ + : : "r" (addr) : "memory") + #endif /* __ASSEMBLY__ */ #endif diff --git a/arch/riscv/include/asm/tlbflush.h b/arch/riscv/include/asm/tlbflush.h index 394cfbccdcd9..c84218ad7afc 100644 --- a/arch/riscv/include/asm/tlbflush.h +++ b/arch/riscv/include/asm/tlbflush.h @@ -9,6 +9,7 @@ #include <linux/mm_types.h> #include <asm/smp.h> +#include <asm/errata_list.h> #ifdef CONFIG_MMU static inline void local_flush_tlb_all(void) @@ -19,7 +20,7 @@ static inline void local_flush_tlb_all(void) /* Flush one page from local TLB */ static inline void local_flush_tlb_page(unsigned long addr) { - __asm__ __volatile__ ("sfence.vma %0" : : "r" (addr) : "memory"); + ALT_FLUSH_TLB_PAGE(__asm__ __volatile__ ("sfence.vma %0" : : "r" (addr) : "memory")); } #else /* CONFIG_MMU */ #define local_flush_tlb_all() do { } while (0) |