i.MX8M Family use A53 Cores and has 32KB ICache with 32KB DCache.
- Icache is 2-way set associative
- Dcache is 4-way set associative
- L2cache is 16-way set associative
- Line size are 64bytes
Except i.MX8MQ has 1MB L2 Cache, others has 512KB L2 Cache.
So add the cache info in device tree and let use could see that
from /sys/devices/system/cpu/cpu[x]/cache/
Signed-off-by: Peng Fan <peng.fan@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clk IMX8MM_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
nvmem-cells = <&cpu_speed_grade>;
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clk IMX8MM_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clk IMX8MM_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clk IMX8MM_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
A53_L2: l2-cache0 {
compatible = "cache";
+ cache-level = <2>;
+ cache-size = <0x80000>;
+ cache-line-size = <64>;
+ cache-sets = <512>;
};
};
clock-latency = <61036>;
clocks = <&clk IMX8MN_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
nvmem-cells = <&cpu_speed_grade>;
clock-latency = <61036>;
clocks = <&clk IMX8MN_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
clock-latency = <61036>;
clocks = <&clk IMX8MN_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
clock-latency = <61036>;
clocks = <&clk IMX8MN_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
cpu-idle-states = <&cpu_pd_wait>;
A53_L2: l2-cache0 {
compatible = "cache";
+ cache-level = <2>;
+ cache-size = <0x80000>;
+ cache-line-size = <64>;
+ cache-sets = <512>;
};
};
clock-latency = <61036>;
clocks = <&clk IMX8MP_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
#cooling-cells = <2>;
};
clock-latency = <61036>;
clocks = <&clk IMX8MP_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
#cooling-cells = <2>;
};
clock-latency = <61036>;
clocks = <&clk IMX8MP_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
#cooling-cells = <2>;
};
clock-latency = <61036>;
clocks = <&clk IMX8MP_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
#cooling-cells = <2>;
};
A53_L2: l2-cache0 {
compatible = "cache";
+ cache-level = <2>;
+ cache-size = <0x80000>;
+ cache-line-size = <64>;
+ cache-sets = <512>;
};
};
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clk IMX8MQ_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clk IMX8MQ_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clk IMX8MQ_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
clock-latency = <61036>; /* two CLK32 periods */
clocks = <&clk IMX8MQ_CLK_ARM>;
enable-method = "psci";
+ i-cache-size = <0x8000>;
+ i-cache-line-size = <64>;
+ i-cache-sets = <256>;
+ d-cache-size = <0x8000>;
+ d-cache-line-size = <64>;
+ d-cache-sets = <128>;
next-level-cache = <&A53_L2>;
operating-points-v2 = <&a53_opp_table>;
#cooling-cells = <2>;
A53_L2: l2-cache0 {
compatible = "cache";
+ cache-level = <2>;
+ cache-size = <0x100000>;
+ cache-line-size = <64>;
+ cache-sets = <1024>;
};
};