From 8d28f121d3794613a2ab6799d54f743e439763ab Mon Sep 17 00:00:00 2001 From: Boon Khai Ng Date: Thu, 14 Aug 2025 11:17:39 +0800 Subject: [PATCH] arch: arm: mach-socfpga: smc: Add dcache flushing and invalidation in smc_send_mailbox() Adding the dcache flushing and invalidation in the smc_send_mailbox() At the same time replace the use of u64 with uintptr_t to ensure compatibility across different architectures and correct the pointer arithmetic for buffer end address calculation. Signed-off-by: Mahesh Rao Signed-off-by: Boon Khai Ng Reviewed-by: Tien Fong Chee Reviewed-by: Tien Fong Chee --- arch/arm/mach-socfpga/smc_api.c | 1 + 1 file changed, 1 insertion(+) diff --git a/arch/arm/mach-socfpga/smc_api.c b/arch/arm/mach-socfpga/smc_api.c index b212a94b321..a531030f5be 100644 --- a/arch/arm/mach-socfpga/smc_api.c +++ b/arch/arm/mach-socfpga/smc_api.c @@ -57,6 +57,7 @@ int smc_send_mailbox(u32 cmd, u32 len, u32 *arg, u8 urgent, u32 *resp_buf_len, resp, ARRAY_SIZE(resp)); if (ret == INTEL_SIP_SMC_STATUS_OK && resp_buf && resp_buf_len) { + invalidate_dcache_range((uintptr_t)resp_buf, (uintptr_t)(resp_buf + *resp_buf_len)); if (!resp[0]) *resp_buf_len = resp[1]; } -- 2.47.3