On 12/11/21 10:36PM, Nishanth Menon wrote:
> A72's L2 cache[1] on J721e[2] is 1MB. A53's L2 is fixed line length of
^^^
Do you mean A72? J721E does not have an A53 core, and this cache node is
for A72 cores anyway.
Other than this,
Reviewed-by: Pratyush Yadav <p.yadav@xxxxxx>
> 64 bytes and 16-way set-associative cache structure.
>
> 1MB of L2 / 64 (line length) = 16384 ways
> 16384 ways / 16 = 1024 sets
>
> Fix the l2 cache-sets.
>
> [1] https://developer.arm.com/documentation/100095/0003/Level-2-Memory-System/About-the-L2-memory-system
> [2] http://www.ti.com/lit/pdf/spruil1
>
> Fixes: 2d87061e70de ("arm64: dts: ti: Add Support for J721E SoC")
> Reported-by: Peng Fan <peng.fan@xxxxxxx>
> Signed-off-by: Nishanth Menon <nm@xxxxxx>
> ---
> arch/arm64/boot/dts/ti/k3-j721e.dtsi | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/arm64/boot/dts/ti/k3-j721e.dtsi b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
> index 214359e7288b..0f674bc8f1c7 100644
> --- a/arch/arm64/boot/dts/ti/k3-j721e.dtsi
> +++ b/arch/arm64/boot/dts/ti/k3-j721e.dtsi
> @@ -88,7 +88,7 @@ L2_0: l2-cache0 {
> cache-level = <2>;
> cache-size = <0x100000>;
> cache-line-size = <64>;
> - cache-sets = <2048>;
> + cache-sets = <1024>;
> next-level-cache = <&msmc_l3>;
> };
>
--
Regards,
Pratyush Yadav
Texas Instruments Inc.
