[PATCH 0/2] Add QMI TMD based cooling support for the Shikra CDSP

[PATCH 0/2] Add QMI TMD based cooling support for the Shikra CDSP

[Dipa Ramesh Mantre]

Unlike CPUs, the CDSP does not automatically throttle based on thermal
conditions. Enable CDSP thermal mitigation by adding Shikra CDSP cooling
data to the Qualcomm PAS remoteproc driver and wiring the Shikra NSP
thermal zone passive trip to the CDSP QMI TMD cooling device.

Depends-on: https://lore.kernel.org/all/20260703-qmi-tmd-v4-0-3882189c1f83@oss.qualcomm.com/

Signed-off-by: Dipa Ramesh Mantre <dipa.mantre@oss.qualcomm.com>
---
Dipa Ramesh Mantre (2):
      remoteproc: qcom_q6v5_pas: Add QMI TMD cooling support for Shikra
      arm64: dts: qcom: shikra: Enable CDSP cooling

 arch/arm64/boot/dts/qcom/shikra.dtsi | 21 ++++++++++++++++++++-
 drivers/remoteproc/qcom_q6v5_pas.c   |  3 +++
 2 files changed, 23 insertions(+), 1 deletion(-)
---
base-commit: 22f1a2f6953d5cc0a82845a69a23216158325d61
change-id: 20260714-shikra-cdsp-5ec6ba6c51ce
prerequisite-change-id: 20260609-qmi-tmd-383d30e1a60a:v4
prerequisite-patch-id: 465c1f2dcefe2e2ffae3ca69296b6a9ec50ab830
prerequisite-patch-id: 26c4e460ce1ef4866e140f38dd2c26509272d337
prerequisite-patch-id: 4e76c812c7b98d649c57f5ace80cd42079cfe754
prerequisite-patch-id: cbbdcc54de760873e4ba1a7788c14968ace935e2
prerequisite-patch-id: 94d3ad39536d12a5623b148e15aa27ecf1abb209
prerequisite-patch-id: bb184f20916f11fde0cb9b8b3fe7cf6344c58ae3
prerequisite-patch-id: cb215c7070ab425fbe181785b831bc69a23e4078
prerequisite-patch-id: 4fa886dd7f7c65daf1f22673adc35a527a84d609
prerequisite-patch-id: b545487026c8f9b853c8b925b9fb097fb9987816
prerequisite-patch-id: 4fcfdb3d75dd21f93880e70cceef9c883f9cd58e
prerequisite-message-id: <20260703-qmi-tmd-v4-0-3882189c1f83@oss.qualcomm.com>
prerequisite-patch-id: 465c1f2dcefe2e2ffae3ca69296b6a9ec50ab830
prerequisite-patch-id: 26c4e460ce1ef4866e140f38dd2c26509272d337
prerequisite-patch-id: 4e76c812c7b98d649c57f5ace80cd42079cfe754
prerequisite-patch-id: cbbdcc54de760873e4ba1a7788c14968ace935e2
prerequisite-patch-id: 94d3ad39536d12a5623b148e15aa27ecf1abb209
prerequisite-patch-id: bb184f20916f11fde0cb9b8b3fe7cf6344c58ae3
prerequisite-patch-id: cb215c7070ab425fbe181785b831bc69a23e4078
prerequisite-patch-id: 4fa886dd7f7c65daf1f22673adc35a527a84d609
prerequisite-patch-id: b545487026c8f9b853c8b925b9fb097fb9987816
prerequisite-patch-id: 4fcfdb3d75dd21f93880e70cceef9c883f9cd58e

Best regards,
-- 
Dipa Ramesh Mantre <dipa.mantre@oss.qualcomm.com>

[PATCH 1/2] remoteproc: qcom_q6v5_pas: Add QMI TMD cooling support for Shikra

[Dipa Ramesh Mantre]

Add QMI TMD instance IDs and cooling device name arrays for CDSP
on Shikra to enable thermal mitigation support.

Signed-off-by: Dipa Ramesh Mantre <dipa.mantre@oss.qualcomm.com>
---
 drivers/remoteproc/qcom_q6v5_pas.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 60a4337d9e51..aa2add77b832 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -1537,6 +1537,9 @@ static const struct qcom_pas_data shikra_cdsp_resource = {
 	.sysmon_name = "cdsp",
 	.ssctl_id = 0x17,
 	.smem_host_id = 5,
+	.tmd_instance_id = 0x43,
+	.tmd_name = cdsp_tmd_name,
+	.num_tmd = ARRAY_SIZE(cdsp_tmd_name),
 };
 
 static const struct qcom_pas_data shikra_lpaicp_resource = {

-- 
2.34.1

[PATCH 2/2] arm64: dts: qcom: shikra: Enable CDSP cooling

[Dipa Ramesh Mantre]

Unlike the CPU, the CDSP does not throttle its speed automatically
when it reaches high temperatures in shikra.

Set up CDSP cooling by throttling the cdsp, when it reaches 115°C.

Signed-off-by: Dipa Ramesh Mantre <dipa.mantre@oss.qualcomm.com>
---
 arch/arm64/boot/dts/qcom/shikra.dtsi | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/qcom/shikra.dtsi b/arch/arm64/boot/dts/qcom/shikra.dtsi
index 2ab474f18af7..d54ac6ed6ab7 100644
--- a/arch/arm64/boot/dts/qcom/shikra.dtsi
+++ b/arch/arm64/boot/dts/qcom/shikra.dtsi
@@ -10,6 +10,7 @@
 #include <dt-bindings/interconnect/qcom,icc.h>
 #include <dt-bindings/interconnect/qcom,osm-l3.h>
 #include <dt-bindings/dma/qcom-gpi.h>
+#include <dt-bindings/firmware/qcom,qmi-tmd.h>
 #include <dt-bindings/interconnect/qcom,rpm-icc.h>
 #include <dt-bindings/interconnect/qcom,shikra.h>
 #include <dt-bindings/interrupt-controller/arm-gic.h>
@@ -1898,6 +1899,8 @@ remoteproc_cdsp: remoteproc@b300000 {
 			qcom,smem-states = <&cdsp_smp2p_out 0>;
 			qcom,smem-state-names = "stop";
 
+			#cooling-cells = <3>;
+
 			status = "disabled";
 
 			glink-edge {
@@ -2401,6 +2404,8 @@ gpuss-critical {
 		};
 
 		nsp-thermal {
+			polling-delay-passive = <200>;
+
 			thermal-sensors = <&tsens0 7>;
 
 			trips {
@@ -2410,12 +2415,26 @@ trip-point0 {
 					type = "hot";
 				};
 
-				nsp-critical {
+				nsp_alert1: nsp-alert1 {
 					temperature = <115000>;
+					hysteresis = <5000>;
+					type = "passive";
+				};
+
+				nsp-critical {
+					temperature = <118000>;
 					hysteresis = <0>;
 					type = "critical";
 				};
 			};
+
+			cooling-maps {
+				map0 {
+					trip = <&nsp_alert1>;
+					cooling-device = <&remoteproc_cdsp QCOM_CDSP_TMD_CDSP_SW
+							 THERMAL_NO_LIMIT THERMAL_NO_LIMIT>;
+				};
+			};
 		};
 
 		mdmss0-thermal {

-- 
2.34.1

Re: [PATCH 0/2] Add QMI TMD based cooling support for the Shikra CDSP

[Gaurav Kohli]

On 7/14/2026 11:30 AM, Dipa Ramesh Mantre wrote:
> Unlike CPUs, the CDSP does not automatically throttle based on thermal
> conditions. Enable CDSP thermal mitigation by adding Shikra CDSP cooling
> data to the Qualcomm PAS remoteproc driver and wiring the Shikra NSP
> thermal zone passive trip to the CDSP QMI TMD cooling device.
> 
> Depends-on: https://lore.kernel.org/all/20260703-qmi-tmd-v4-0-3882189c1f83@oss.qualcomm.com/

Please wait, we will send v5 version of this series.

> 
> Signed-off-by: Dipa Ramesh Mantre <dipa.mantre@oss.qualcomm.com>
> ---
> Dipa Ramesh Mantre (2):
>        remoteproc: qcom_q6v5_pas: Add QMI TMD cooling support for Shikra
>        arm64: dts: qcom: shikra: Enable CDSP cooling
> 
>   arch/arm64/boot/dts/qcom/shikra.dtsi | 21 ++++++++++++++++++++-
>   drivers/remoteproc/qcom_q6v5_pas.c   |  3 +++
>   2 files changed, 23 insertions(+), 1 deletion(-)
> ---
> base-commit: 22f1a2f6953d5cc0a82845a69a23216158325d61
> change-id: 20260714-shikra-cdsp-5ec6ba6c51ce
> prerequisite-change-id: 20260609-qmi-tmd-383d30e1a60a:v4
> prerequisite-patch-id: 465c1f2dcefe2e2ffae3ca69296b6a9ec50ab830
> prerequisite-patch-id: 26c4e460ce1ef4866e140f38dd2c26509272d337
> prerequisite-patch-id: 4e76c812c7b98d649c57f5ace80cd42079cfe754
> prerequisite-patch-id: cbbdcc54de760873e4ba1a7788c14968ace935e2
> prerequisite-patch-id: 94d3ad39536d12a5623b148e15aa27ecf1abb209
> prerequisite-patch-id: bb184f20916f11fde0cb9b8b3fe7cf6344c58ae3
> prerequisite-patch-id: cb215c7070ab425fbe181785b831bc69a23e4078
> prerequisite-patch-id: 4fa886dd7f7c65daf1f22673adc35a527a84d609
> prerequisite-patch-id: b545487026c8f9b853c8b925b9fb097fb9987816
> prerequisite-patch-id: 4fcfdb3d75dd21f93880e70cceef9c883f9cd58e
> prerequisite-message-id: <20260703-qmi-tmd-v4-0-3882189c1f83@oss.qualcomm.com>
> prerequisite-patch-id: 465c1f2dcefe2e2ffae3ca69296b6a9ec50ab830
> prerequisite-patch-id: 26c4e460ce1ef4866e140f38dd2c26509272d337
> prerequisite-patch-id: 4e76c812c7b98d649c57f5ace80cd42079cfe754
> prerequisite-patch-id: cbbdcc54de760873e4ba1a7788c14968ace935e2
> prerequisite-patch-id: 94d3ad39536d12a5623b148e15aa27ecf1abb209
> prerequisite-patch-id: bb184f20916f11fde0cb9b8b3fe7cf6344c58ae3
> prerequisite-patch-id: cb215c7070ab425fbe181785b831bc69a23e4078
> prerequisite-patch-id: 4fa886dd7f7c65daf1f22673adc35a527a84d609
> prerequisite-patch-id: b545487026c8f9b853c8b925b9fb097fb9987816
> prerequisite-patch-id: 4fcfdb3d75dd21f93880e70cceef9c883f9cd58e
> 
> Best regards,