arm64: dts: mt8186: Add complete CPU caches information
authorAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Tue, 6 Dec 2022 11:23:28 +0000 (12:23 +0100)
committerMatthias Brugger <matthias.bgg@gmail.com>
Mon, 9 Jan 2023 16:16:49 +0000 (17:16 +0100)
This SoC features two clusters composed of:
 - 6x Cortex A55: 32KB I-cache and 32KB D-cache, 4-way set associative,
                  per-cpu 128KB L2 cache, 4-way set associative;
 - 2x Cortex A76: 64KB I-cache and 64KB D-cache, 4-way set associative,
                  per-cpu 256KB L2 cache, 8-way set associative;
Moreover, the two clusters are sharing a DSU L3 cache with size 1MB,
16-way set associative.

With that in mind, add the appropriate properties needed to specify the
caches information for this SoC, which will now be correctly exported
to sysfs.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20221206112330.78431-4-angelogioacchino.delregno@collabora.com
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
arch/arm64/boot/dts/mediatek/mt8186.dtsi

index 209f26f12dbc72d53a73872e31e44b681c5a0e58..6321b7a440d2ac1cc0f2a8eb4b431bfed10c99d6 100644 (file)
                        clock-frequency = <2000000000>;
                        capacity-dmips-mhz = <382>;
                        cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+                       i-cache-size = <32768>;
+                       i-cache-line-size = <64>;
+                       i-cache-sets = <128>;
+                       d-cache-size = <32768>;
+                       d-cache-line-size = <64>;
+                       d-cache-sets = <128>;
                        next-level-cache = <&l2_0>;
                        #cooling-cells = <2>;
                };
                        clock-frequency = <2000000000>;
                        capacity-dmips-mhz = <382>;
                        cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+                       i-cache-size = <32768>;
+                       i-cache-line-size = <64>;
+                       i-cache-sets = <128>;
+                       d-cache-size = <32768>;
+                       d-cache-line-size = <64>;
+                       d-cache-sets = <128>;
                        next-level-cache = <&l2_0>;
                        #cooling-cells = <2>;
                };
                        clock-frequency = <2000000000>;
                        capacity-dmips-mhz = <382>;
                        cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+                       i-cache-size = <32768>;
+                       i-cache-line-size = <64>;
+                       i-cache-sets = <128>;
+                       d-cache-size = <32768>;
+                       d-cache-line-size = <64>;
+                       d-cache-sets = <128>;
                        next-level-cache = <&l2_0>;
                        #cooling-cells = <2>;
                };
                        clock-frequency = <2000000000>;
                        capacity-dmips-mhz = <382>;
                        cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+                       i-cache-size = <32768>;
+                       i-cache-line-size = <64>;
+                       i-cache-sets = <128>;
+                       d-cache-size = <32768>;
+                       d-cache-line-size = <64>;
+                       d-cache-sets = <128>;
                        next-level-cache = <&l2_0>;
                        #cooling-cells = <2>;
                };
                        clock-frequency = <2000000000>;
                        capacity-dmips-mhz = <382>;
                        cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+                       i-cache-size = <32768>;
+                       i-cache-line-size = <64>;
+                       i-cache-sets = <128>;
+                       d-cache-size = <32768>;
+                       d-cache-line-size = <64>;
+                       d-cache-sets = <128>;
                        next-level-cache = <&l2_0>;
                        #cooling-cells = <2>;
                };
                        clock-frequency = <2000000000>;
                        capacity-dmips-mhz = <382>;
                        cpu-idle-states = <&cpu_off_l &cluster_off_l>;
+                       i-cache-size = <32768>;
+                       i-cache-line-size = <64>;
+                       i-cache-sets = <128>;
+                       d-cache-size = <32768>;
+                       d-cache-line-size = <64>;
+                       d-cache-sets = <128>;
                        next-level-cache = <&l2_0>;
                        #cooling-cells = <2>;
                };
                        clock-frequency = <2050000000>;
                        capacity-dmips-mhz = <1024>;
                        cpu-idle-states = <&cpu_off_b &cluster_off_b>;
+                       i-cache-size = <65536>;
+                       i-cache-line-size = <64>;
+                       i-cache-sets = <256>;
+                       d-cache-size = <65536>;
+                       d-cache-line-size = <64>;
+                       d-cache-sets = <256>;
                        next-level-cache = <&l2_1>;
                        #cooling-cells = <2>;
                };
                        clock-frequency = <2050000000>;
                        capacity-dmips-mhz = <1024>;
                        cpu-idle-states = <&cpu_off_b &cluster_off_b>;
+                       i-cache-size = <65536>;
+                       i-cache-line-size = <64>;
+                       i-cache-sets = <256>;
+                       d-cache-size = <65536>;
+                       d-cache-line-size = <64>;
+                       d-cache-sets = <256>;
                        next-level-cache = <&l2_1>;
                        #cooling-cells = <2>;
                };
                l2_0: l2-cache0 {
                        compatible = "cache";
                        cache-level = <2>;
+                       cache-size = <131072>;
+                       cache-line-size = <64>;
+                       cache-sets = <512>;
                        next-level-cache = <&l3_0>;
                };
 
                l2_1: l2-cache1 {
                        compatible = "cache";
                        cache-level = <2>;
+                       cache-size = <262144>;
+                       cache-line-size = <64>;
+                       cache-sets = <512>;
                        next-level-cache = <&l3_0>;
                };
 
                l3_0: l3-cache {
                        compatible = "cache";
                        cache-level = <3>;
+                       cache-size = <1048576>;
+                       cache-line-size = <64>;
+                       cache-sets = <1024>;
+                       cache-unified;
                };
        };