On 7/2/24 12:25 AM, Eric Biggers wrote:
From: Eric Biggers <ebiggers@xxxxxxxxxx> Add support for Flash Memory Protector (FMP), which is the inline encryption hardware on Exynos and Exynos-based SoCs. Specifically, add support for the "traditional FMP mode" that works on many Exynos-based SoCs including gs101. This is the mode that uses "software keys" and is compatible with the upstream kernel's existing inline encryption framework in the block and filesystem layers. I plan to add support for the wrapped key support on gs101 at a later time. Tested on gs101 (specifically Pixel 6) by running the 'encrypt' group of xfstests on a filesystem mounted with the 'inlinecrypt' mount option. Signed-off-by: Eric Biggers <ebiggers@xxxxxxxxxx> --- drivers/ufs/host/ufs-exynos.c | 228 +++++++++++++++++++++++++++++++++- 1 file changed, 222 insertions(+), 6 deletions(-) diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 88d125d1ee3c..dd545ef7c361 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -6,10 +6,13 @@ * Author: Seungwon Jeon <essuuj@xxxxxxxxx> * Author: Alim Akhtar <alim.akhtar@xxxxxxxxxxx> * */+#include <asm/unaligned.h>+#include <crypto/aes.h> +#include <linux/arm-smccc.h> #include <linux/clk.h> #include <linux/delay.h> #include <linux/module.h> #include <linux/of.h> #include <linux/of_address.h> @@ -23,16 +26,18 @@ #include <ufs/ufshci.h> #include <ufs/unipro.h>#include "ufs-exynos.h" +#define DATA_UNIT_SIZE 4096+#define LOG2_DATA_UNIT_SIZE 12
If this series has to be reposted, please consider changing "12" into "ilog2(DATA_UNIT_SIZE)". I think that the ilog2() macro generates a constant expression if its argument is a constant. In case it wouldn't be clear, I'm fine with this patch with or without that change. Thanks, Bart.
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