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Thread-Topic: [PATCH v3 3/4] riscv: fix sbi_remote_sfence_vma{,_asid}. 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X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Palmer Dabbelt , Anup Patel , Christoph Hellwig , Atish Patra , Albert Ou , Gary Guo , "linux-riscv@lists.infradead.org" Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+infradead-linux-riscv=archiver.kernel.org@lists.infradead.org From: Gary Guo Currently sbi_remote_sfence_vma{,_asid} does not pass their arguments to SBI at all, which is semantically incorrect. Neither BBL nor OpenSBI is using these arguments at the moment, and they just do a global flush instead. However we still need to provide correct arguments. Signed-off-by: Gary Guo --- arch/riscv/include/asm/sbi.h | 19 ++++++++++++------- 1 file changed, 12 insertions(+), 7 deletions(-) diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index b6bb10b92fe2..19f231615510 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -26,22 +26,27 @@ #define SBI_REMOTE_SFENCE_VMA_ASID 7 #define SBI_SHUTDOWN 8 -#define SBI_CALL(which, arg0, arg1, arg2) ({ \ +#define SBI_CALL(which, arg0, arg1, arg2, arg3) ({ \ register uintptr_t a0 asm ("a0") = (uintptr_t)(arg0); \ register uintptr_t a1 asm ("a1") = (uintptr_t)(arg1); \ register uintptr_t a2 asm ("a2") = (uintptr_t)(arg2); \ + register uintptr_t a3 asm ("a3") = (uintptr_t)(arg3); \ register uintptr_t a7 asm ("a7") = (uintptr_t)(which); \ asm volatile ("ecall" \ : "+r" (a0) \ - : "r" (a1), "r" (a2), "r" (a7) \ + : "r" (a1), "r" (a2), "r" (a3), "r" (a7) \ : "memory"); \ a0; \ }) /* Lazy implementations until SBI is finalized */ -#define SBI_CALL_0(which) SBI_CALL(which, 0, 0, 0) -#define SBI_CALL_1(which, arg0) SBI_CALL(which, arg0, 0, 0) -#define SBI_CALL_2(which, arg0, arg1) SBI_CALL(which, arg0, arg1, 0) +#define SBI_CALL_0(which) SBI_CALL(which, 0, 0, 0, 0) +#define SBI_CALL_1(which, arg0) SBI_CALL(which, arg0, 0, 0, 0) +#define SBI_CALL_2(which, arg0, arg1) SBI_CALL(which, arg0, arg1, 0, 0) +#define SBI_CALL_3(which, arg0, arg1, arg2) \ + SBI_CALL(which, arg0, arg1, arg2, 0) +#define SBI_CALL_4(which, arg0, arg1, arg2, arg3) \ + SBI_CALL(which, arg0, arg1, arg2, arg3) static inline void sbi_console_putchar(int ch) { @@ -86,7 +91,7 @@ static inline void sbi_remote_sfence_vma(const unsigned long *hart_mask, unsigned long start, unsigned long size) { - SBI_CALL_1(SBI_REMOTE_SFENCE_VMA, hart_mask); + SBI_CALL_3(SBI_REMOTE_SFENCE_VMA, hart_mask, start, size); } static inline void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask, @@ -94,7 +99,7 @@ static inline void sbi_remote_sfence_vma_asid(const unsigned long *hart_mask, unsigned long size, unsigned long asid) { - SBI_CALL_1(SBI_REMOTE_SFENCE_VMA_ASID, hart_mask); + SBI_CALL_4(SBI_REMOTE_SFENCE_VMA_ASID, hart_mask, start, size, asid); } #endif -- 2.17.1 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv