releases/6.14.9/firmware-xilinx-dont-send-linux-address-to-get-fpga-.patch

From 4c207afab71ea04998a6332dbd781963a5e2b84c Mon Sep 17 00:00:00 2001
From: Sasha Levin <sashal@kernel.org>
Date: Fri, 7 Feb 2025 11:19:51 +0530
Subject: firmware: xilinx: Dont send linux address to get fpga config get
 status

From: Siva Durga Prasad Paladugu <siva.durga.prasad.paladugu@amd.com>

[ Upstream commit 5abc174016052caff1bcf4cedb159bd388411e98 ]

Fpga get config status just returns status through ret_payload and there
is no need to allocate local buf and send its address through SMC args.
Moreover, the address that is being passed till now is linux virtual
address and is incorrect.
Corresponding modification has been done in the firmware to avoid using the
address sent by linux.

Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.prasad.paladugu@amd.com>
Signed-off-by: Nava kishore Manne <nava.kishore.manne@amd.com>
Link: https://lore.kernel.org/r/20250207054951.1650534-1-nava.kishore.manne@amd.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/firmware/xilinx/zynqmp.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 720fa8b5d8e95..7356e860e65ce 100644
--- a/drivers/firmware/xilinx/zynqmp.c
+++ b/drivers/firmware/xilinx/zynqmp.c
@@ -1139,17 +1139,13 @@ EXPORT_SYMBOL_GPL(zynqmp_pm_fpga_get_status);
 int zynqmp_pm_fpga_get_config_status(u32 *value)
 {
 	u32 ret_payload[PAYLOAD_ARG_CNT];
-	u32 buf, lower_addr, upper_addr;
 	int ret;
 
 	if (!value)
 		return -EINVAL;
 
-	lower_addr = lower_32_bits((u64)&buf);
-	upper_addr = upper_32_bits((u64)&buf);
-
 	ret = zynqmp_pm_invoke_fn(PM_FPGA_READ, ret_payload, 4,
-				  XILINX_ZYNQMP_PM_FPGA_CONFIG_STAT_OFFSET, lower_addr, upper_addr,
+				  XILINX_ZYNQMP_PM_FPGA_CONFIG_STAT_OFFSET, 0, 0,
 				  XILINX_ZYNQMP_PM_FPGA_READ_CONFIG_REG);
 
 	*value = ret_payload[1];
-- 
2.39.5