From: Svyatoslav Ryhel <clamor95@gmail.com>
To: Krzysztof Kozlowski <krzk@kernel.org>,
Rob Herring <robh@kernel.org>, Conor Dooley <conor+dt@kernel.org>,
Thierry Reding <treding@nvidia.com>,
Thierry Reding <thierry.reding@gmail.com>,
Jonathan Hunter <jonathanh@nvidia.com>,
Prashant Gaikwad <pgaikwad@nvidia.com>,
Mikko Perttunen <mperttunen@nvidia.com>,
Michael Turquette <mturquette@baylibre.com>,
Stephen Boyd <sboyd@kernel.org>,
Dmitry Osipenko <digetx@gmail.com>,
MyungJoo Ham <myungjoo.ham@samsung.com>,
Kyungmin Park <kyungmin.park@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Svyatoslav Ryhel <clamor95@gmail.com>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-tegra@vger.kernel.org, linux-clk@vger.kernel.org,
linux-pm@vger.kernel.org
Subject: [PATCH v3 10/11] ARM: tegra: Add EMC OPP and ICC properties to Tegra114 EMC and ACTMON device-tree nodes
Date: Mon, 15 Sep 2025 11:01:56 +0300 [thread overview]
Message-ID: <20250915080157.28195-11-clamor95@gmail.com> (raw)
In-Reply-To: <20250915080157.28195-1-clamor95@gmail.com>
Add EMC OPP tables and interconnect paths that will be used for
dynamic memory bandwidth scaling based on memory utilization statistics.
Signed-off-by: Svyatoslav Ryhel <clamor95@gmail.com>
---
.../dts/nvidia/tegra114-peripherals-opp.dtsi | 151 ++++++++++++++++++
arch/arm/boot/dts/nvidia/tegra114.dtsi | 9 ++
2 files changed, 160 insertions(+)
create mode 100644 arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi
diff --git a/arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi b/arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi
new file mode 100644
index 000000000000..1a0e68f22039
--- /dev/null
+++ b/arch/arm/boot/dts/nvidia/tegra114-peripherals-opp.dtsi
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+
+/ {
+ emc_icc_dvfs_opp_table: opp-table-emc {
+ compatible = "operating-points-v2";
+
+ opp-12750000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <12750000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-20400000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <20400000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-40800000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <40800000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-68000000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <68000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-102000000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <102000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-204000000-900 {
+ opp-microvolt = <900000 900000 1390000>;
+ opp-hz = /bits/ 64 <204000000>;
+ opp-supported-hw = <0x000F>;
+ opp-suspend;
+ };
+
+ opp-312000000-1000 {
+ opp-microvolt = <1000000 1000000 1390000>;
+ opp-hz = /bits/ 64 <312000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-408000000-1000 {
+ opp-microvolt = <1000000 1000000 1390000>;
+ opp-hz = /bits/ 64 <408000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-528000000-1050 {
+ opp-microvolt = <1050000 1050000 1390000>;
+ opp-hz = /bits/ 64 <528000000>;
+ opp-supported-hw = <0x000E>;
+ };
+
+ opp-528000000-1100 {
+ opp-microvolt = <1100000 1100000 1390000>;
+ opp-hz = /bits/ 64 <528000000>;
+ opp-supported-hw = <0x0001>;
+ };
+
+ opp-624000000-1100 {
+ opp-microvolt = <1100000 1100000 1390000>;
+ opp-hz = /bits/ 64 <624000000>;
+ opp-supported-hw = <0x000F>;
+ };
+
+ opp-792000000-1100 {
+ opp-microvolt = <1100000 1100000 1390000>;
+ opp-hz = /bits/ 64 <792000000>;
+ opp-supported-hw = <0x000F>;
+ };
+ };
+
+ emc_bw_dfs_opp_table: opp-table-actmon {
+ compatible = "operating-points-v2";
+
+ opp-12750000 {
+ opp-hz = /bits/ 64 <12750000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <204000>;
+ };
+
+ opp-20400000 {
+ opp-hz = /bits/ 64 <20400000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <326400>;
+ };
+
+ opp-40800000 {
+ opp-hz = /bits/ 64 <40800000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <652800>;
+ };
+
+ opp-68000000 {
+ opp-hz = /bits/ 64 <68000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <1088000>;
+ };
+
+ opp-102000000 {
+ opp-hz = /bits/ 64 <102000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <1632000>;
+ };
+
+ opp-204000000 {
+ opp-hz = /bits/ 64 <204000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <3264000>;
+ opp-suspend;
+ };
+
+ opp-312000000 {
+ opp-hz = /bits/ 64 <312000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <4992000>;
+ };
+
+ opp-408000000 {
+ opp-hz = /bits/ 64 <408000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <6528000>;
+ };
+
+ opp-528000000 {
+ opp-hz = /bits/ 64 <528000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <8448000>;
+ };
+
+ opp-624000000 {
+ opp-hz = /bits/ 64 <624000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <9984000>;
+ };
+
+ opp-792000000 {
+ opp-hz = /bits/ 64 <792000000>;
+ opp-supported-hw = <0x000F>;
+ opp-peak-kBps = <12672000>;
+ };
+ };
+};
diff --git a/arch/arm/boot/dts/nvidia/tegra114.dtsi b/arch/arm/boot/dts/nvidia/tegra114.dtsi
index e386425c3fdf..e2bc8c2cc73c 100644
--- a/arch/arm/boot/dts/nvidia/tegra114.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra114.dtsi
@@ -8,6 +8,8 @@
#include <dt-bindings/soc/tegra-pmc.h>
#include <dt-bindings/thermal/tegra114-soctherm.h>
+#include "tegra114-peripherals-opp.dtsi"
+
/ {
compatible = "nvidia,tegra114";
interrupt-parent = <&lic>;
@@ -259,6 +261,9 @@ actmon: actmon@6000c800 {
clock-names = "actmon", "emc";
resets = <&tegra_car TEGRA114_CLK_ACTMON>;
reset-names = "actmon";
+ operating-points-v2 = <&emc_bw_dfs_opp_table>;
+ interconnects = <&mc TEGRA114_MC_MPCORER &emc>;
+ interconnect-names = "cpu-read";
#cooling-cells = <2>;
};
@@ -591,6 +596,7 @@ mc: memory-controller@70019000 {
#reset-cells = <1>;
#iommu-cells = <1>;
+ #interconnect-cells = <1>;
};
emc: external-memory-controller@7001b000 {
@@ -601,6 +607,9 @@ emc: external-memory-controller@7001b000 {
clock-names = "emc";
nvidia,memory-controller = <&mc>;
+ operating-points-v2 = <&emc_icc_dvfs_opp_table>;
+
+ #interconnect-cells = <0>;
};
hda@70030000 {
--
2.48.1
next prev parent reply other threads:[~2025-09-15 8:02 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-09-15 8:01 [PATCH v3 00/11] Tegra114: implement EMC support Svyatoslav Ryhel
2025-09-15 8:01 ` [PATCH v3 01/11] devfreq: tegra30-devfreq: add support for Tegra114 Svyatoslav Ryhel
2025-11-11 8:55 ` Mikko Perttunen
2025-11-11 13:34 ` Svyatoslav Ryhel
2025-11-13 4:20 ` Mikko Perttunen
2025-09-15 8:01 ` [PATCH v3 02/11] ARM: tegra: Add ACTMON node to Tegra114 device tree Svyatoslav Ryhel
2025-11-11 9:00 ` Mikko Perttunen
2025-09-15 8:01 ` [PATCH v3 03/11] dt-bindings: memory: Document Tegra114 Memory Controller Svyatoslav Ryhel
2025-09-22 16:00 ` Rob Herring
2025-09-22 16:18 ` Svyatoslav Ryhel
2025-09-24 15:24 ` Rob Herring
2025-12-01 14:18 ` Thierry Reding
2025-09-15 8:01 ` [PATCH v3 04/11] memory: tegra: implement EMEM regs and ICC ops for Tegra114 Svyatoslav Ryhel
2025-11-13 4:36 ` Mikko Perttunen
2025-09-15 8:01 ` [PATCH v3 05/11] dt-bindings: memory: Add Tegra114 memory client IDs Svyatoslav Ryhel
2025-11-13 4:47 ` Mikko Perttunen
2025-09-15 8:01 ` [PATCH v3 06/11] clk: tegra: remove EMC to MC clock mux in Tegra114 Svyatoslav Ryhel
2025-09-21 17:54 ` Stephen Boyd
2025-11-13 14:21 ` Svyatoslav Ryhel
2025-11-25 10:21 ` Svyatoslav Ryhel
2025-11-13 5:05 ` Mikko Perttunen
2025-11-13 14:29 ` Svyatoslav Ryhel
2025-09-15 8:01 ` [PATCH v3 07/11] dt-bindings: memory: Document Tegra114 External Memory Controller Svyatoslav Ryhel
2025-09-15 8:01 ` [PATCH v3 08/11] memory: tegra: Add Tegra114 EMC driver Svyatoslav Ryhel
2025-11-18 7:08 ` Mikko Perttunen
2025-11-18 8:05 ` Svyatoslav Ryhel
2025-11-21 4:03 ` Mikko Perttunen
2025-11-21 8:54 ` Svyatoslav Ryhel
2025-11-25 3:29 ` Mikko Perttunen
2025-09-15 8:01 ` [PATCH v3 09/11] ARM: tegra: Add External Memory Controller node on Tegra114 Svyatoslav Ryhel
2025-09-15 8:01 ` Svyatoslav Ryhel [this message]
2025-09-15 8:01 ` [PATCH v3 11/11] ARM: tegra: add DC interconnections for Tegra114 Svyatoslav Ryhel
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20250915080157.28195-11-clamor95@gmail.com \
--to=clamor95@gmail.com \
--cc=conor+dt@kernel.org \
--cc=cw00.choi@samsung.com \
--cc=devicetree@vger.kernel.org \
--cc=digetx@gmail.com \
--cc=jonathanh@nvidia.com \
--cc=krzk@kernel.org \
--cc=kyungmin.park@samsung.com \
--cc=linux-clk@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=linux-tegra@vger.kernel.org \
--cc=mperttunen@nvidia.com \
--cc=mturquette@baylibre.com \
--cc=myungjoo.ham@samsung.com \
--cc=pgaikwad@nvidia.com \
--cc=robh@kernel.org \
--cc=sboyd@kernel.org \
--cc=thierry.reding@gmail.com \
--cc=treding@nvidia.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox