[v2,2/2] arm64: dts: qcom: sc7280: Add cpu OPP tables

Message ID 1620111510-31455-3-git-send-email-sibis@codeaurora.org
State New
Headers show
Series
  • DDR/L3 Scaling support on SC7280 SoCs
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Commit Message

Sibi Sankar May 4, 2021, 6:58 a.m.
Add OPP tables required to scale DDR/L3 per freq-domain on SC7280 SoCs.

Signed-off-by: Sibi Sankar <sibis@codeaurora.org>
---

v2:
 * Add a new opp table for cpu 7 to account for the additional frequencies
   supported by it.

 arch/arm64/boot/dts/qcom/sc7280.dtsi | 215 +++++++++++++++++++++++++++++++++++
 1 file changed, 215 insertions(+)

Comments

Doug Anderson May 4, 2021, 8:02 p.m. | #1
Hi,

On Mon, May 3, 2021 at 11:59 PM Sibi Sankar <sibis@codeaurora.org> wrote:
>
> +       cpu0_opp_table: cpu0_opp_table {
> +               compatible = "operating-points-v2";
> +               opp-shared;
> +
> +               cpu0_opp1: opp-300000000 {

It seems like it might be nicer to give the node labels a less
arbitrary name. How about?

cpu0_opp_300mhz: opp-300000000

That has advantes:

* If, for some reason, you have to mess with some operating point in
another dts it'll be less fragile.

* It'll make diffing easier between SoCs.

* If you end up putting a new operating point in the middle you don't
need to rename everything below.

Other than that, I can't say that I'm a huge expert on the
interconnect stuff and whether those make sense, but I'm still OK
with:

Reviewed-by: Douglas Anderson <dianders@chromium.org>
Sibi Sankar May 5, 2021, 10:11 a.m. | #2
Hey Doug,

Thanks for the review!

On 2021-05-05 01:32, Doug Anderson wrote:
> Hi,

> 

> On Mon, May 3, 2021 at 11:59 PM Sibi Sankar <sibis@codeaurora.org> 

> wrote:

>> 

>> +       cpu0_opp_table: cpu0_opp_table {

>> +               compatible = "operating-points-v2";

>> +               opp-shared;

>> +

>> +               cpu0_opp1: opp-300000000 {

> 

> It seems like it might be nicer to give the node labels a less

> arbitrary name. How about?

> 

> cpu0_opp_300mhz: opp-300000000

> 

> That has advantes:

> 

> * If, for some reason, you have to mess with some operating point in

> another dts it'll be less fragile.

> 

> * It'll make diffing easier between SoCs.

> 

> * If you end up putting a new operating point in the middle you don't

> need to rename everything below.


sure makes sense, will fix it in v3.

> 

> Other than that, I can't say that I'm a huge expert on the

> interconnect stuff and whether those make sense, but I'm still OK

> with:

> 

> Reviewed-by: Douglas Anderson <dianders@chromium.org>


-- 
Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum,
a Linux Foundation Collaborative Project.

Patch

diff --git a/arch/arm64/boot/dts/qcom/sc7280.dtsi b/arch/arm64/boot/dts/qcom/sc7280.dtsi
index 0bb835aeae33..34e9df7ea683 100644
--- a/arch/arm64/boot/dts/qcom/sc7280.dtsi
+++ b/arch/arm64/boot/dts/qcom/sc7280.dtsi
@@ -7,6 +7,7 @@ 
 
 #include <dt-bindings/clock/qcom,gcc-sc7280.h>
 #include <dt-bindings/clock/qcom,rpmh.h>
+#include <dt-bindings/interconnect/qcom,osm-l3.h>
 #include <dt-bindings/interconnect/qcom,sc7280.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
 #include <dt-bindings/mailbox/qcom-ipcc.h>
@@ -71,6 +72,9 @@ 
 					   &LITTLE_CPU_SLEEP_1
 					   &CLUSTER_SLEEP_0>;
 			next-level-cache = <&L2_0>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
+					<&epss_l3 MASTER_EPSS_L3_APPS &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_0: l2-cache {
 				compatible = "cache";
@@ -90,6 +94,9 @@ 
 					   &LITTLE_CPU_SLEEP_1
 					   &CLUSTER_SLEEP_0>;
 			next-level-cache = <&L2_100>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
+					<&epss_l3 MASTER_EPSS_L3_APPS &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_100: l2-cache {
 				compatible = "cache";
@@ -106,6 +113,9 @@ 
 					   &LITTLE_CPU_SLEEP_1
 					   &CLUSTER_SLEEP_0>;
 			next-level-cache = <&L2_200>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
+					<&epss_l3 MASTER_EPSS_L3_APPS &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_200: l2-cache {
 				compatible = "cache";
@@ -122,6 +132,9 @@ 
 					   &LITTLE_CPU_SLEEP_1
 					   &CLUSTER_SLEEP_0>;
 			next-level-cache = <&L2_300>;
+			operating-points-v2 = <&cpu0_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
+					<&epss_l3 MASTER_EPSS_L3_APPS &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			qcom,freq-domain = <&cpufreq_hw 0>;
 			L2_300: l2-cache {
 				compatible = "cache";
@@ -138,6 +151,9 @@ 
 					   &BIG_CPU_SLEEP_1
 					   &CLUSTER_SLEEP_0>;
 			next-level-cache = <&L2_400>;
+			operating-points-v2 = <&cpu4_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
+					<&epss_l3 MASTER_EPSS_L3_APPS &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			L2_400: l2-cache {
 				compatible = "cache";
@@ -154,6 +170,9 @@ 
 					   &BIG_CPU_SLEEP_1
 					   &CLUSTER_SLEEP_0>;
 			next-level-cache = <&L2_500>;
+			operating-points-v2 = <&cpu4_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
+					<&epss_l3 MASTER_EPSS_L3_APPS &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			L2_500: l2-cache {
 				compatible = "cache";
@@ -170,6 +189,9 @@ 
 					   &BIG_CPU_SLEEP_1
 					   &CLUSTER_SLEEP_0>;
 			next-level-cache = <&L2_600>;
+			operating-points-v2 = <&cpu4_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
+					<&epss_l3 MASTER_EPSS_L3_APPS &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			qcom,freq-domain = <&cpufreq_hw 1>;
 			L2_600: l2-cache {
 				compatible = "cache";
@@ -186,6 +208,9 @@ 
 					   &BIG_CPU_SLEEP_1
 					   &CLUSTER_SLEEP_0>;
 			next-level-cache = <&L2_700>;
+			operating-points-v2 = <&cpu7_opp_table>;
+			interconnects = <&gem_noc MASTER_APPSS_PROC 3 &mc_virt SLAVE_EBI1 3>,
+					<&epss_l3 MASTER_EPSS_L3_APPS &epss_l3 SLAVE_EPSS_L3_SHARED>;
 			qcom,freq-domain = <&cpufreq_hw 2>;
 			L2_700: l2-cache {
 				compatible = "cache";
@@ -248,6 +273,196 @@ 
 		};
 	};
 
+	cpu0_opp_table: cpu0_opp_table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		cpu0_opp1: opp-300000000 {
+			opp-hz = /bits/ 64 <300000000>;
+			opp-peak-kBps = <800000 9600000>;
+		};
+
+		cpu0_opp2: opp-691200000 {
+			opp-hz = /bits/ 64 <691200000>;
+			opp-peak-kBps = <800000 17817600>;
+		};
+
+		cpu0_opp3: opp-806400000 {
+			opp-hz = /bits/ 64 <806400000>;
+			opp-peak-kBps = <800000 20889600>;
+		};
+
+		cpu0_opp4: opp-940800000 {
+			opp-hz = /bits/ 64 <940800000>;
+			opp-peak-kBps = <1804000 24576000>;
+		};
+
+		cpu0_opp5: opp-1152000000 {
+			opp-hz = /bits/ 64 <1152000000>;
+			opp-peak-kBps = <2188000 27033600>;
+		};
+
+		cpu0_opp6: opp-1324800000 {
+			opp-hz = /bits/ 64 <1324800000>;
+			opp-peak-kBps = <2188000 33792000>;
+		};
+
+		cpu0_opp7: opp-1516800000 {
+			opp-hz = /bits/ 64 <1516800000>;
+			opp-peak-kBps = <3072000 38092800>;
+		};
+
+		cpu0_opp8: opp-1651200000 {
+			opp-hz = /bits/ 64 <1651200000>;
+			opp-peak-kBps = <3072000 41779200>;
+		};
+
+		cpu0_opp9: opp-1804800000 {
+			opp-hz = /bits/ 64 <1804800000>;
+			opp-peak-kBps = <4068000 48537600>;
+		};
+
+		cpu0_opp10: opp-1958400000 {
+			opp-hz = /bits/ 64 <1958400000>;
+			opp-peak-kBps = <4068000 48537600>;
+		};
+	};
+
+	cpu4_opp_table: cpu4_opp_table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		cpu4_opp1: opp-691200000 {
+			opp-hz = /bits/ 64 <691200000>;
+			opp-peak-kBps = <1804000 9600000>;
+		};
+
+		cpu4_opp2: opp-940800000 {
+			opp-hz = /bits/ 64 <940800000>;
+			opp-peak-kBps = <2188000 17817600>;
+		};
+
+		cpu4_opp3: opp-1228800000 {
+			opp-hz = /bits/ 64 <1228800000>;
+			opp-peak-kBps = <4068000 24576000>;
+		};
+
+		cpu4_opp4: opp-1344000000 {
+			opp-hz = /bits/ 64 <1344000000>;
+			opp-peak-kBps = <4068000 24576000>;
+		};
+
+		cpu4_opp5: opp-1516800000 {
+			opp-hz = /bits/ 64 <1516800000>;
+			opp-peak-kBps = <4068000 24576000>;
+		};
+
+		cpu4_opp6: opp-1651200000 {
+			opp-hz = /bits/ 64 <1651200000>;
+			opp-peak-kBps = <6220000 38092800>;
+		};
+
+		cpu4_opp7: opp-1900800000 {
+			opp-hz = /bits/ 64 <1900800000>;
+			opp-peak-kBps = <6220000 44851200>;
+		};
+
+		cpu4_opp8: opp-2054400000 {
+			opp-hz = /bits/ 64 <2054400000>;
+			opp-peak-kBps = <6220000 44851200>;
+		};
+
+		cpu4_opp9: opp-2112000000 {
+			opp-hz = /bits/ 64 <2112000000>;
+			opp-peak-kBps = <6220000 44851200>;
+		};
+
+		cpu4_opp10: opp-2131200000 {
+			opp-hz = /bits/ 64 <2131200000>;
+			opp-peak-kBps = <6220000 44851200>;
+		};
+
+		cpu4_opp11: opp-2208000000 {
+			opp-hz = /bits/ 64 <2208000000>;
+			opp-peak-kBps = <6220000 44851200>;
+		};
+
+		cpu4_opp12: opp-2400000000 {
+			opp-hz = /bits/ 64 <2400000000>;
+			opp-peak-kBps = <8532000 48537600>;
+		};
+	};
+
+	cpu7_opp_table: cpu7_opp_table {
+		compatible = "operating-points-v2";
+		opp-shared;
+
+		cpu7_opp1: opp-806400000 {
+			opp-hz = /bits/ 64 <806400000>;
+			opp-peak-kBps = <1804000 9600000>;
+		};
+
+		cpu7_opp2: opp-1056000000 {
+			opp-hz = /bits/ 64 <1056000000>;
+			opp-peak-kBps = <2188000 17817600>;
+		};
+
+		cpu7_opp3: opp-1324800000 {
+			opp-hz = /bits/ 64 <1324800000>;
+			opp-peak-kBps = <4068000 24576000>;
+		};
+
+		cpu7_opp4: opp-1516800000 {
+			opp-hz = /bits/ 64 <1516800000>;
+			opp-peak-kBps = <4068000 24576000>;
+		};
+
+		cpu7_opp5: opp-1766400000 {
+			opp-hz = /bits/ 64 <1766400000>;
+			opp-peak-kBps = <6220000 38092800>;
+		};
+
+		cpu7_opp6: opp-1862400000 {
+			opp-hz = /bits/ 64 <1862400000>;
+			opp-peak-kBps = <6220000 38092800>;
+		};
+
+		cpu7_opp7: opp-2035200000 {
+			opp-hz = /bits/ 64 <2035200000>;
+			opp-peak-kBps = <6220000 38092800>;
+		};
+
+		cpu7_opp8: opp-2112000000 {
+			opp-hz = /bits/ 64 <2112000000>;
+			opp-peak-kBps = <6220000 44851200>;
+		};
+
+		cpu7_opp9: opp-2208000000 {
+			opp-hz = /bits/ 64 <2208000000>;
+			opp-peak-kBps = <6220000 44851200>;
+		};
+
+		cpu7_opp10: opp-2380800000 {
+			opp-hz = /bits/ 64 <2380800000>;
+			opp-peak-kBps = <6832000 44851200>;
+		};
+
+		cpu7_opp11: opp-2400000000 {
+			opp-hz = /bits/ 64 <2400000000>;
+			opp-peak-kBps = <8532000 48537600>;
+		};
+
+		cpu7_opp12: opp-2515200000 {
+			opp-hz = /bits/ 64 <2515200000>;
+			opp-peak-kBps = <8532000 48537600>;
+		};
+
+		cpu7_opp13: opp-2707200000 {
+			opp-hz = /bits/ 64 <2707200000>;
+			opp-peak-kBps = <8532000 48537600>;
+		};
+	};
+
 	memory@80000000 {
 		device_type = "memory";
 		/* We expect the bootloader to fill in the size */