[PATCH v2 1/3] arch: arm: mach-socfpga: smc: Add dcache flushing and invalidation in smc_send_mailbox()

[Boon Khai Ng]

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 <mahesh.rao at altera.com>
Signed-off-by: Boon Khai Ng <boon.khai.ng at altera.com>
---
 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];
 	}
-- 
2.35.3