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From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Date: Wed, 24 Apr 2024 12:28:02 +0300
Subject: [PATCH v7 6/6] remoteproc: qcom: enable in-kernel PD mapper
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Message-Id: <20240424-qcom-pd-mapper-v7-6-05f7fc646e0f@linaro.org>
References: <20240424-qcom-pd-mapper-v7-0-05f7fc646e0f@linaro.org>
In-Reply-To: <20240424-qcom-pd-mapper-v7-0-05f7fc646e0f@linaro.org>
To: Bjorn Andersson <andersson@kernel.org>, 
 Konrad Dybcio <konrad.dybcio@linaro.org>, 
 Sibi Sankar <quic_sibis@quicinc.com>, 
 Mathieu Poirier <mathieu.poirier@linaro.org>
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org, 
 linux-remoteproc@vger.kernel.org, Johan Hovold <johan+linaro@kernel.org>, 
 Xilin Wu <wuxilin123@gmail.com>, 
 Bryan O'Donoghue <bryan.odonoghue@linaro.org>

Request in-kernel protection domain mapper to be started before starting
Qualcomm DSP and release it once DSP is stopped. Once all DSPs are
stopped, the PD mapper will be stopped too.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/remoteproc/Kconfig          |  4 ++++
 drivers/remoteproc/qcom_q6v5_adsp.c | 11 ++++++++++-
 drivers/remoteproc/qcom_q6v5_mss.c  | 10 +++++++++-
 drivers/remoteproc/qcom_q6v5_pas.c  | 12 +++++++++++-
 drivers/remoteproc/qcom_q6v5_wcss.c | 12 +++++++++++-
 5 files changed, 45 insertions(+), 4 deletions(-)

diff --git a/drivers/remoteproc/Kconfig b/drivers/remoteproc/Kconfig
index 48845dc8fa85..a0ce552f89a1 100644
--- a/drivers/remoteproc/Kconfig
+++ b/drivers/remoteproc/Kconfig
@@ -181,6 +181,7 @@ config QCOM_Q6V5_ADSP
 	depends on QCOM_SYSMON || QCOM_SYSMON=n
 	depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
 	depends on QCOM_AOSS_QMP || QCOM_AOSS_QMP=n
+	depends on QCOM_PD_MAPPER || QCOM_PD_MAPPER=n
 	select MFD_SYSCON
 	select QCOM_PIL_INFO
 	select QCOM_MDT_LOADER
@@ -201,6 +202,7 @@ config QCOM_Q6V5_MSS
 	depends on QCOM_SYSMON || QCOM_SYSMON=n
 	depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
 	depends on QCOM_AOSS_QMP || QCOM_AOSS_QMP=n
+	depends on QCOM_PD_MAPPER || QCOM_PD_MAPPER=n
 	select MFD_SYSCON
 	select QCOM_MDT_LOADER
 	select QCOM_PIL_INFO
@@ -221,6 +223,7 @@ config QCOM_Q6V5_PAS
 	depends on QCOM_SYSMON || QCOM_SYSMON=n
 	depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
 	depends on QCOM_AOSS_QMP || QCOM_AOSS_QMP=n
+	depends on QCOM_PD_MAPPER || QCOM_PD_MAPPER=n
 	select MFD_SYSCON
 	select QCOM_PIL_INFO
 	select QCOM_MDT_LOADER
@@ -243,6 +246,7 @@ config QCOM_Q6V5_WCSS
 	depends on QCOM_SYSMON || QCOM_SYSMON=n
 	depends on RPMSG_QCOM_GLINK || RPMSG_QCOM_GLINK=n
 	depends on QCOM_AOSS_QMP || QCOM_AOSS_QMP=n
+	depends on QCOM_PD_MAPPER || QCOM_PD_MAPPER=n
 	select MFD_SYSCON
 	select QCOM_MDT_LOADER
 	select QCOM_PIL_INFO
diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index 1d24c9b656a8..02d0c626b03b 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -23,6 +23,7 @@
 #include <linux/remoteproc.h>
 #include <linux/reset.h>
 #include <linux/soc/qcom/mdt_loader.h>
+#include <linux/soc/qcom/pd_mapper.h>
 #include <linux/soc/qcom/smem.h>
 #include <linux/soc/qcom/smem_state.h>
 
@@ -375,10 +376,14 @@ static int adsp_start(struct rproc *rproc)
 	int ret;
 	unsigned int val;
 
-	ret = qcom_q6v5_prepare(&adsp->q6v5);
+	ret = qcom_pdm_get();
 	if (ret)
 		return ret;
 
+	ret = qcom_q6v5_prepare(&adsp->q6v5);
+	if (ret)
+		goto put_pdm;
+
 	ret = adsp_map_carveout(rproc);
 	if (ret) {
 		dev_err(adsp->dev, "ADSP smmu mapping failed\n");
@@ -446,6 +451,8 @@ static int adsp_start(struct rproc *rproc)
 	adsp_unmap_carveout(rproc);
 disable_irqs:
 	qcom_q6v5_unprepare(&adsp->q6v5);
+put_pdm:
+	qcom_pdm_release();
 
 	return ret;
 }
@@ -478,6 +485,8 @@ static int adsp_stop(struct rproc *rproc)
 	if (handover)
 		qcom_adsp_pil_handover(&adsp->q6v5);
 
+	qcom_pdm_release();
+
 	return ret;
 }
 
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 1779fc890e10..791f11e7adbf 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -26,6 +26,7 @@
 #include <linux/remoteproc.h>
 #include <linux/reset.h>
 #include <linux/soc/qcom/mdt_loader.h>
+#include <linux/soc/qcom/pd_mapper.h>
 #include <linux/iopoll.h>
 #include <linux/slab.h>
 
@@ -1581,10 +1582,14 @@ static int q6v5_start(struct rproc *rproc)
 	int xfermemop_ret;
 	int ret;
 
-	ret = q6v5_mba_load(qproc);
+	ret = qcom_pdm_get();
 	if (ret)
 		return ret;
 
+	ret = q6v5_mba_load(qproc);
+	if (ret)
+		goto put_pdm;
+
 	dev_info(qproc->dev, "MBA booted with%s debug policy, loading mpss\n",
 		 qproc->dp_size ? "" : "out");
 
@@ -1613,6 +1618,8 @@ static int q6v5_start(struct rproc *rproc)
 reclaim_mpss:
 	q6v5_mba_reclaim(qproc);
 	q6v5_dump_mba_logs(qproc);
+put_pdm:
+	qcom_pdm_release();
 
 	return ret;
 }
@@ -1627,6 +1634,7 @@ static int q6v5_stop(struct rproc *rproc)
 		dev_err(qproc->dev, "timed out on wait\n");
 
 	q6v5_mba_reclaim(qproc);
+	qcom_pdm_release();
 
 	return 0;
 }
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index 54d8005d40a3..653e54f975fc 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -23,6 +23,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/remoteproc.h>
 #include <linux/soc/qcom/mdt_loader.h>
+#include <linux/soc/qcom/pd_mapper.h>
 #include <linux/soc/qcom/smem.h>
 #include <linux/soc/qcom/smem_state.h>
 
@@ -261,10 +262,14 @@ static int adsp_start(struct rproc *rproc)
 	struct qcom_adsp *adsp = rproc->priv;
 	int ret;
 
-	ret = qcom_q6v5_prepare(&adsp->q6v5);
+	ret = qcom_pdm_get();
 	if (ret)
 		return ret;
 
+	ret = qcom_q6v5_prepare(&adsp->q6v5);
+	if (ret)
+		goto put_pdm;
+
 	ret = adsp_pds_enable(adsp, adsp->proxy_pds, adsp->proxy_pd_count);
 	if (ret < 0)
 		goto disable_irqs;
@@ -356,6 +361,9 @@ static int adsp_start(struct rproc *rproc)
 	/* Remove pointer to the loaded firmware, only valid in adsp_load() & adsp_start() */
 	adsp->firmware = NULL;
 
+put_pdm:
+	qcom_pdm_release();
+
 	return ret;
 }
 
@@ -399,6 +407,8 @@ static int adsp_stop(struct rproc *rproc)
 	if (handover)
 		qcom_pas_handover(&adsp->q6v5);
 
+	qcom_pdm_release();
+
 	return ret;
 }
 
diff --git a/drivers/remoteproc/qcom_q6v5_wcss.c b/drivers/remoteproc/qcom_q6v5_wcss.c
index 94f68c919ee6..6ed60f3f3eee 100644
--- a/drivers/remoteproc/qcom_q6v5_wcss.c
+++ b/drivers/remoteproc/qcom_q6v5_wcss.c
@@ -18,6 +18,7 @@
 #include <linux/regulator/consumer.h>
 #include <linux/reset.h>
 #include <linux/soc/qcom/mdt_loader.h>
+#include <linux/soc/qcom/pd_mapper.h>
 #include "qcom_common.h"
 #include "qcom_pil_info.h"
 #include "qcom_q6v5.h"
@@ -240,13 +241,17 @@ static int q6v5_wcss_start(struct rproc *rproc)
 	struct q6v5_wcss *wcss = rproc->priv;
 	int ret;
 
+	ret = qcom_pdm_get();
+	if (ret)
+		return ret;
+
 	qcom_q6v5_prepare(&wcss->q6v5);
 
 	/* Release Q6 and WCSS reset */
 	ret = reset_control_deassert(wcss->wcss_reset);
 	if (ret) {
 		dev_err(wcss->dev, "wcss_reset failed\n");
-		return ret;
+		goto put_pdm;
 	}
 
 	ret = reset_control_deassert(wcss->wcss_q6_reset);
@@ -288,6 +293,9 @@ static int q6v5_wcss_start(struct rproc *rproc)
 wcss_reset:
 	reset_control_assert(wcss->wcss_reset);
 
+put_pdm:
+	qcom_pdm_release();
+
 	return ret;
 }
 
@@ -735,6 +743,8 @@ static int q6v5_wcss_stop(struct rproc *rproc)
 
 	qcom_q6v5_unprepare(&wcss->q6v5);
 
+	qcom_pdm_release();
+
 	return 0;
 }
 

-- 
2.39.2