diff mbox series

[v2] firmware: xilinx: Dont send linux address to get fpga config get status

Message ID 20250207054951.1650534-1-nava.kishore.manne@amd.com (mailing list archive)
State New
Headers show
Series [v2] firmware: xilinx: Dont send linux address to get fpga config get status | expand

Commit Message

Manne, Nava kishore Feb. 7, 2025, 5:49 a.m. UTC
From: Siva Durga Prasad Paladugu <siva.durga.prasad.paladugu@amd.com>

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>
---
Changes for v2:
 - Drop the specified patch:
   https://lore.kernel.org/lkml/DS7PR12MB6070A83267558A7D545E3383CDF72@DS7PR12MB6070.namprd12.prod.outlook.com/
 - Rebase the patch on v6.14-rc1 without any changes.

 drivers/firmware/xilinx/zynqmp.c | 6 +-----
 1 file changed, 1 insertion(+), 5 deletions(-)

Comments

Michal Simek Feb. 17, 2025, 2:45 p.m. UTC | #1
On 2/7/25 06:49, Nava kishore Manne wrote:
> From: Siva Durga Prasad Paladugu <siva.durga.prasad.paladugu@amd.com>
> 
> 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>
> ---
> Changes for v2:
>   - Drop the specified patch:
>     https://lore.kernel.org/lkml/DS7PR12MB6070A83267558A7D545E3383CDF72@DS7PR12MB6070.namprd12.prod.outlook.com/
>   - Rebase the patch on v6.14-rc1 without any changes.
> 
>   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 720fa8b5d8e9..7356e860e65c 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];

Applied.
M
diff mbox series

Patch

diff --git a/drivers/firmware/xilinx/zynqmp.c b/drivers/firmware/xilinx/zynqmp.c
index 720fa8b5d8e9..7356e860e65c 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];