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Message-ID: <20250111161429.51-6-quic_rlaggysh@quicinc.com>
Date: Sat, 11 Jan 2025 16:14:29 +0000
From: Raviteja Laggyshetty <quic_rlaggysh@...cinc.com>
To: Georgi Djakov <djakov@...nel.org>, Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio
<konradybcio@...nel.org>,
Odelu Kukatla <quic_okukatla@...cinc.com>,
"Mike
Tipton" <mdptipton@...cinc.com>,
Vivek Aknurwar <viveka@...cinc.com>
CC: Sibi Sankar <quic_sibis@...cinc.com>, <linux-arm-msm@...r.kernel.org>,
<linux-pm@...r.kernel.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
Shivnandan Kumar <quic_kshivnan@...cinc.com>
Subject: [PATCH V7 5/5] arm64: dts: qcom: sa8775p: Add CPU OPP tables to scale DDR/L3
From: Jagadeesh Kona <quic_jkona@...cinc.com>
Add OPP tables required to scale DDR and L3 per freq-domain
on SA8775P platform.
If a single OPP table is used for both CPU domains, then
_allocate_opp_table() won't be invoked for CPU4 but instead
CPU4 will be added as device under the CPU0 OPP table. Due
to this, dev_pm_opp_of_find_icc_paths() won't be invoked for
CPU4 device and hence CPU4 won't be able to independently scale
it's interconnects. Both CPU0 and CPU4 devices will scale the
same ICC path which can lead to one device overwriting the BW
vote placed by other device. Hence CPU0 and CPU4 require separate
OPP tables to allow independent scaling of DDR and L3 frequencies
for each CPU domain, with the final DDR and L3 frequencies being
an aggregate of both.
Co-developed-by: Shivnandan Kumar <quic_kshivnan@...cinc.com>
Signed-off-by: Shivnandan Kumar <quic_kshivnan@...cinc.com>
Signed-off-by: Jagadeesh Kona <quic_jkona@...cinc.com>
Signed-off-by: Raviteja Laggyshetty <quic_rlaggysh@...cinc.com>
---
arch/arm64/boot/dts/qcom/sa8775p.dtsi | 210 ++++++++++++++++++++++++++
1 file changed, 210 insertions(+)
diff --git a/arch/arm64/boot/dts/qcom/sa8775p.dtsi b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
index c6a889d4ddaf..7c52bca958fe 100644
--- a/arch/arm64/boot/dts/qcom/sa8775p.dtsi
+++ b/arch/arm64/boot/dts/qcom/sa8775p.dtsi
@@ -49,6 +49,11 @@ cpu0: cpu@0 {
next-level-cache = <&l2_0>;
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <100>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&epss_l3_cl0 MASTER_EPSS_L3_APPS
+ &epss_l3_cl0 SLAVE_EPSS_L3_SHARED>;
l2_0: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -71,6 +76,11 @@ cpu1: cpu@100 {
next-level-cache = <&l2_1>;
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <100>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&epss_l3_cl0 MASTER_EPSS_L3_APPS
+ &epss_l3_cl0 SLAVE_EPSS_L3_SHARED>;
l2_1: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -88,6 +98,11 @@ cpu2: cpu@200 {
next-level-cache = <&l2_2>;
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <100>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&epss_l3_cl0 MASTER_EPSS_L3_APPS
+ &epss_l3_cl0 SLAVE_EPSS_L3_SHARED>;
l2_2: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -105,6 +120,11 @@ cpu3: cpu@300 {
next-level-cache = <&l2_3>;
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <100>;
+ operating-points-v2 = <&cpu0_opp_table>;
+ interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&epss_l3_cl0 MASTER_EPSS_L3_APPS
+ &epss_l3_cl0 SLAVE_EPSS_L3_SHARED>;
l2_3: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -122,6 +142,11 @@ cpu4: cpu@...00 {
next-level-cache = <&l2_4>;
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <100>;
+ operating-points-v2 = <&cpu4_opp_table>;
+ interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&epss_l3_cl1 MASTER_EPSS_L3_APPS
+ &epss_l3_cl1 SLAVE_EPSS_L3_SHARED>;
l2_4: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -145,6 +170,11 @@ cpu5: cpu@...00 {
next-level-cache = <&l2_5>;
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <100>;
+ operating-points-v2 = <&cpu4_opp_table>;
+ interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&epss_l3_cl1 MASTER_EPSS_L3_APPS
+ &epss_l3_cl1 SLAVE_EPSS_L3_SHARED>;
l2_5: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -162,6 +192,11 @@ cpu6: cpu@...00 {
next-level-cache = <&l2_6>;
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <100>;
+ operating-points-v2 = <&cpu4_opp_table>;
+ interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&epss_l3_cl1 MASTER_EPSS_L3_APPS
+ &epss_l3_cl1 SLAVE_EPSS_L3_SHARED>;
l2_6: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -179,6 +214,11 @@ cpu7: cpu@...00 {
next-level-cache = <&l2_7>;
capacity-dmips-mhz = <1024>;
dynamic-power-coefficient = <100>;
+ operating-points-v2 = <&cpu4_opp_table>;
+ interconnects = <&gem_noc MASTER_APPSS_PROC QCOM_ICC_TAG_ACTIVE_ONLY
+ &mc_virt SLAVE_EBI1 QCOM_ICC_TAG_ACTIVE_ONLY>,
+ <&epss_l3_cl1 MASTER_EPSS_L3_APPS
+ &epss_l3_cl1 SLAVE_EPSS_L3_SHARED>;
l2_7: l2-cache {
compatible = "cache";
cache-level = <2>;
@@ -268,6 +308,176 @@ cluster_sleep_apss_rsc_pc: cluster-sleep-1 {
};
};
+ cpu0_opp_table: opp-table-cpu0 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ cpu0_opp_1267mhz: opp-1267200000 {
+ opp-hz = /bits/ 64 <1267200000>;
+ opp-peak-kBps = <6220800 29491200>;
+ };
+
+ cpu0_opp_1363mhz: opp-1363200000 {
+ opp-hz = /bits/ 64 <1363200000>;
+ opp-peak-kBps = <6220800 29491200>;
+ };
+
+ cpu0_opp_1459mhz: opp-1459200000 {
+ opp-hz = /bits/ 64 <1459200000>;
+ opp-peak-kBps = <6220800 29491200>;
+ };
+
+ cpu0_opp_1536mhz: opp-1536000000 {
+ opp-hz = /bits/ 64 <1536000000>;
+ opp-peak-kBps = <6220800 29491200>;
+ };
+
+ cpu0_opp_1632mhz: opp-1632000000 {
+ opp-hz = /bits/ 64 <1632000000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu0_opp_1708mhz: opp-1708800000 {
+ opp-hz = /bits/ 64 <1708800000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu0_opp_1785mhz: opp-1785600000 {
+ opp-hz = /bits/ 64 <1785600000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu0_opp_1862mhz: opp-1862400000 {
+ opp-hz = /bits/ 64 <1862400000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu0_opp_1939mhz: opp-1939200000 {
+ opp-hz = /bits/ 64 <1939200000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu0_opp_2016mhz: opp-2016000000 {
+ opp-hz = /bits/ 64 <2016000000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu0_opp_2112mhz: opp-2112000000 {
+ opp-hz = /bits/ 64 <2112000000>;
+ opp-peak-kBps = <8371200 49766400>;
+ };
+
+ cpu0_opp_2188mhz: opp-2188800000 {
+ opp-hz = /bits/ 64 <2188800000>;
+ opp-peak-kBps = <8371200 49766400>;
+ };
+
+ cpu0_opp_2265mhz: opp-2265600000 {
+ opp-hz = /bits/ 64 <2265600000>;
+ opp-peak-kBps = <8371200 49766400>;
+ };
+
+ cpu0_opp_2361mhz: opp-2361600000 {
+ opp-hz = /bits/ 64 <2361600000>;
+ opp-peak-kBps = <12787200 51609600>;
+ };
+
+ cpu0_opp_2457mhz: opp-2457600000 {
+ opp-hz = /bits/ 64 <2457600000>;
+ opp-peak-kBps = <12787200 51609600>;
+ };
+
+ cpu0_opp_2553mhz: opp-2553600000 {
+ opp-hz = /bits/ 64 <2553600000>;
+ opp-peak-kBps = <12787200 54681600>;
+ };
+ };
+
+ cpu4_opp_table: opp-table-cpu4 {
+ compatible = "operating-points-v2";
+ opp-shared;
+
+ cpu4_opp_1267mhz: opp-1267200000 {
+ opp-hz = /bits/ 64 <1267200000>;
+ opp-peak-kBps = <6220800 29491200>;
+ };
+
+ cpu4_opp_1363mhz: opp-1363200000 {
+ opp-hz = /bits/ 64 <1363200000>;
+ opp-peak-kBps = <6220800 29491200>;
+ };
+
+ cpu4_opp_1459mhz: opp-1459200000 {
+ opp-hz = /bits/ 64 <1459200000>;
+ opp-peak-kBps = <6220800 29491200>;
+ };
+
+ cpu4_opp_1536mhz: opp-1536000000 {
+ opp-hz = /bits/ 64 <1536000000>;
+ opp-peak-kBps = <6220800 29491200>;
+ };
+
+ cpu4_opp_1632mhz: opp-1632000000 {
+ opp-hz = /bits/ 64 <1632000000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu4_opp_1708mhz: opp-1708800000 {
+ opp-hz = /bits/ 64 <1708800000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu4_opp_1785mhz: opp-1785600000 {
+ opp-hz = /bits/ 64 <1785600000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu4_opp_1862mhz: opp-1862400000 {
+ opp-hz = /bits/ 64 <1862400000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu4_opp_1939mhz: opp-1939200000 {
+ opp-hz = /bits/ 64 <1939200000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu4_opp_2016mhz: opp-2016000000 {
+ opp-hz = /bits/ 64 <2016000000>;
+ opp-peak-kBps = <6835200 39321600>;
+ };
+
+ cpu4_opp_2112mhz: opp-2112000000 {
+ opp-hz = /bits/ 64 <2112000000>;
+ opp-peak-kBps = <8371200 49766400>;
+ };
+
+ cpu4_opp_2188mhz: opp-2188800000 {
+ opp-hz = /bits/ 64 <2188800000>;
+ opp-peak-kBps = <8371200 49766400>;
+ };
+
+ cpu4_opp_2265mhz: opp-2265600000 {
+ opp-hz = /bits/ 64 <2265600000>;
+ opp-peak-kBps = <8371200 49766400>;
+ };
+
+ cpu4_opp_2361mhz: opp-2361600000 {
+ opp-hz = /bits/ 64 <2361600000>;
+ opp-peak-kBps = <12787200 51609600>;
+ };
+
+ cpu4_opp_2457mhz: opp-2457600000 {
+ opp-hz = /bits/ 64 <2457600000>;
+ opp-peak-kBps = <12787200 51609600>;
+ };
+
+ cpu4_opp_2553mhz: opp-2553600000 {
+ opp-hz = /bits/ 64 <2553600000>;
+ opp-peak-kBps = <12787200 54681600>;
+ };
+ };
+
dummy-sink {
compatible = "arm,coresight-dummy-sink";
--
2.39.2
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