Merge tag 'rproc-v5.1' of git://github.com/andersson/remoteproc

Pull remoteproc updates from Bjorn Andersson:
 "This contains the last patches in Loic's remoteproc resource table
  handling changes, a number of updates to documentation, support for
  invoking the crash handler (for testing purposes), a fix for the
  handling of virtio devices during recovery, performance state votes in
  Qualcomm modem driver, support for specifying board specific firmware
  path for Qualcomm modem driver and improved support for graceful
  shutdown of Qualcomm remoteprocs"

* tag 'rproc-v5.1' of git://github.com/andersson/remoteproc: (33 commits)
  remoteproc: fix for "dma-mapping: remove the DMA_MEMORY_EXCLUSIVE flag"
  remoteproc: fix rproc_check_carveout_da() returned error and comments
  remoteproc: fix trace buffer va initialization
  remoteproc: fix rproc_alloc_carveout() for rproc with iommu domain
  remoteproc: add warning on resource table cast
  remoteproc: fix rproc_alloc_carveout() bad variable cast
  remoteproc: fix rproc_da_to_va in case of unallocated carveout
  remoteproc: correct rproc_mem_entry_init() comments
  remoteproc: fix recovery procedure
  rpmsg: virtio: change header file sort style
  rpmsg: virtio: allocate buffer from parent
  remoteproc: st: add reserved memory support
  remoteproc: create vdev subdevice with specific dma memory pool
  remoteproc: q6v5_adsp: Remove voting for lpass_aon clock
  dt-binding: remoteproc: Remove lpass_aon clock from adsp pil clock list
  remoteproc: q6v5-mss: Active powerdomain for SDM845
  remoteproc: q6v5-mss: Vote for rpmh power domains
  remoteproc: qcom: Add support for parsing fw dt bindings
  remoteproc: qcom_q6v5: don't auto boot remote processor
  remoteproc: qcom: Wait for shutdown-ack/ind on sysmon shutdown
  ...

11 files changed, 607 insertions, 104 deletions

diff --git a/drivers/remoteproc/qcom_q6v5_adsp.c b/drivers/remoteproc/qcom_q6v5_adsp.c
index 79374d1de311..1f3ef9ee493c 100644
--- a/drivers/remoteproc/qcom_q6v5_adsp.c
+++ b/drivers/remoteproc/qcom_q6v5_adsp.c
@@ -48,7 +48,7 @@
 
 /* list of clocks required by ADSP PIL */
 static const char * const adsp_clk_id[] = {
-	"sway_cbcr", "lpass_aon", "lpass_ahbs_aon_cbcr", "lpass_ahbm_aon_cbcr",
+	"sway_cbcr", "lpass_ahbs_aon_cbcr", "lpass_ahbm_aon_cbcr",
 	"qdsp6ss_xo", "qdsp6ss_sleep", "qdsp6ss_core",
 };
 
@@ -439,6 +439,10 @@ static int adsp_probe(struct platform_device *pdev)
 	adsp->sysmon = qcom_add_sysmon_subdev(rproc,
 					      desc->sysmon_name,
 					      desc->ssctl_id);
+	if (IS_ERR(adsp->sysmon)) {
+		ret = PTR_ERR(adsp->sysmon);
+		goto disable_pm;
+	}
 
 	ret = rproc_add(rproc);
 	if (ret)
diff --git a/drivers/remoteproc/qcom_q6v5_mss.c b/drivers/remoteproc/qcom_q6v5_mss.c
index 01be7314e176..eacdf10fcfaf 100644
--- a/drivers/remoteproc/qcom_q6v5_mss.c
+++ b/drivers/remoteproc/qcom_q6v5_mss.c
@@ -25,6 +25,8 @@
 #include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/platform_device.h>
+#include <linux/pm_domain.h>
+#include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/regulator/consumer.h>
 #include <linux/remoteproc.h>
@@ -131,6 +133,8 @@ struct rproc_hexagon_res {
 	char **proxy_clk_names;
 	char **reset_clk_names;
 	char **active_clk_names;
+	char **active_pd_names;
+	char **proxy_pd_names;
 	int version;
 	bool need_mem_protection;
 	bool has_alt_reset;
@@ -156,9 +160,13 @@ struct q6v5 {
 	struct clk *active_clks[8];
 	struct clk *reset_clks[4];
 	struct clk *proxy_clks[4];
+	struct device *active_pds[1];
+	struct device *proxy_pds[3];
 	int active_clk_count;
 	int reset_clk_count;
 	int proxy_clk_count;
+	int active_pd_count;
+	int proxy_pd_count;
 
 	struct reg_info active_regs[1];
 	struct reg_info proxy_regs[3];
@@ -188,6 +196,7 @@ struct q6v5 {
 	bool has_alt_reset;
 	int mpss_perm;
 	int mba_perm;
+	const char *hexagon_mdt_image;
 	int version;
 };
 
@@ -321,6 +330,41 @@ static void q6v5_clk_disable(struct device *dev,
 		clk_disable_unprepare(clks[i]);
 }
 
+static int q6v5_pds_enable(struct q6v5 *qproc, struct device **pds,
+			   size_t pd_count)
+{
+	int ret;
+	int i;
+
+	for (i = 0; i < pd_count; i++) {
+		dev_pm_genpd_set_performance_state(pds[i], INT_MAX);
+		ret = pm_runtime_get_sync(pds[i]);
+		if (ret < 0)
+			goto unroll_pd_votes;
+	}
+
+	return 0;
+
+unroll_pd_votes:
+	for (i--; i >= 0; i--) {
+		dev_pm_genpd_set_performance_state(pds[i], 0);
+		pm_runtime_put(pds[i]);
+	}
+
+	return ret;
+};
+
+static void q6v5_pds_disable(struct q6v5 *qproc, struct device **pds,
+			     size_t pd_count)
+{
+	int i;
+
+	for (i = 0; i < pd_count; i++) {
+		dev_pm_genpd_set_performance_state(pds[i], 0);
+		pm_runtime_put(pds[i]);
+	}
+}
+
 static int q6v5_xfer_mem_ownership(struct q6v5 *qproc, int *current_perm,
 				   bool remote_owner, phys_addr_t addr,
 				   size_t size)
@@ -690,11 +734,23 @@ static int q6v5_mba_load(struct q6v5 *qproc)
 
 	qcom_q6v5_prepare(&qproc->q6v5);
 
+	ret = q6v5_pds_enable(qproc, qproc->active_pds, qproc->active_pd_count);
+	if (ret < 0) {
+		dev_err(qproc->dev, "failed to enable active power domains\n");
+		goto disable_irqs;
+	}
+
+	ret = q6v5_pds_enable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+	if (ret < 0) {
+		dev_err(qproc->dev, "failed to enable proxy power domains\n");
+		goto disable_active_pds;
+	}
+
 	ret = q6v5_regulator_enable(qproc, qproc->proxy_regs,
 				    qproc->proxy_reg_count);
 	if (ret) {
 		dev_err(qproc->dev, "failed to enable proxy supplies\n");
-		goto disable_irqs;
+		goto disable_proxy_pds;
 	}
 
 	ret = q6v5_clk_enable(qproc->dev, qproc->proxy_clks,
@@ -791,6 +847,10 @@ disable_proxy_clk:
 disable_proxy_reg:
 	q6v5_regulator_disable(qproc, qproc->proxy_regs,
 			       qproc->proxy_reg_count);
+disable_proxy_pds:
+	q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+disable_active_pds:
+	q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
 disable_irqs:
 	qcom_q6v5_unprepare(&qproc->q6v5);
 
@@ -830,6 +890,7 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
 			 qproc->active_clk_count);
 	q6v5_regulator_disable(qproc, qproc->active_regs,
 			       qproc->active_reg_count);
+	q6v5_pds_disable(qproc, qproc->active_pds, qproc->active_pd_count);
 
 	/* In case of failure or coredump scenario where reclaiming MBA memory
 	 * could not happen reclaim it here.
@@ -841,6 +902,8 @@ static void q6v5_mba_reclaim(struct q6v5 *qproc)
 
 	ret = qcom_q6v5_unprepare(&qproc->q6v5);
 	if (ret) {
+		q6v5_pds_disable(qproc, qproc->proxy_pds,
+				 qproc->proxy_pd_count);
 		q6v5_clk_disable(qproc->dev, qproc->proxy_clks,
 				 qproc->proxy_clk_count);
 		q6v5_regulator_disable(qproc, qproc->proxy_regs,
@@ -860,17 +923,26 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 	phys_addr_t min_addr = PHYS_ADDR_MAX;
 	phys_addr_t max_addr = 0;
 	bool relocate = false;
-	char seg_name[10];
+	char *fw_name;
+	size_t fw_name_len;
 	ssize_t offset;
 	size_t size = 0;
 	void *ptr;
 	int ret;
 	int i;
 
-	ret = request_firmware(&fw, "modem.mdt", qproc->dev);
+	fw_name_len = strlen(qproc->hexagon_mdt_image);
+	if (fw_name_len <= 4)
+		return -EINVAL;
+
+	fw_name = kstrdup(qproc->hexagon_mdt_image, GFP_KERNEL);
+	if (!fw_name)
+		return -ENOMEM;
+
+	ret = request_firmware(&fw, fw_name, qproc->dev);
 	if (ret < 0) {
-		dev_err(qproc->dev, "unable to load modem.mdt\n");
-		return ret;
+		dev_err(qproc->dev, "unable to load %s\n", fw_name);
+		goto out;
 	}
 
 	/* Initialize the RMB validator */
@@ -918,10 +990,11 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 		ptr = qproc->mpss_region + offset;
 
 		if (phdr->p_filesz) {
-			snprintf(seg_name, sizeof(seg_name), "modem.b%02d", i);
-			ret = request_firmware(&seg_fw, seg_name, qproc->dev);
+			/* Replace "xxx.xxx" with "xxx.bxx" */
+			sprintf(fw_name + fw_name_len - 3, "b%02d", i);
+			ret = request_firmware(&seg_fw, fw_name, qproc->dev);
 			if (ret) {
-				dev_err(qproc->dev, "failed to load %s\n", seg_name);
+				dev_err(qproc->dev, "failed to load %s\n", fw_name);
 				goto release_firmware;
 			}
 
@@ -960,6 +1033,8 @@ static int q6v5_mpss_load(struct q6v5 *qproc)
 
 release_firmware:
 	release_firmware(fw);
+out:
+	kfree(fw_name);
 
 	return ret < 0 ? ret : 0;
 }
@@ -1075,9 +1150,10 @@ static int qcom_q6v5_register_dump_segments(struct rproc *rproc,
 	unsigned long i;
 	int ret;
 
-	ret = request_firmware(&fw, "modem.mdt", qproc->dev);
+	ret = request_firmware(&fw, qproc->hexagon_mdt_image, qproc->dev);
 	if (ret < 0) {
-		dev_err(qproc->dev, "unable to load modem.mdt\n");
+		dev_err(qproc->dev, "unable to load %s\n",
+			qproc->hexagon_mdt_image);
 		return ret;
 	}
 
@@ -1121,6 +1197,7 @@ static void qcom_msa_handover(struct qcom_q6v5 *q6v5)
 			 qproc->proxy_clk_count);
 	q6v5_regulator_disable(qproc, qproc->proxy_regs,
 			       qproc->proxy_reg_count);
+	q6v5_pds_disable(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
 }
 
 static int q6v5_init_mem(struct q6v5 *qproc, struct platform_device *pdev)
@@ -1181,6 +1258,45 @@ static int q6v5_init_clocks(struct device *dev, struct clk **clks,
 	return i;
 }
 
+static int q6v5_pds_attach(struct device *dev, struct device **devs,
+			   char **pd_names)
+{
+	size_t num_pds = 0;
+	int ret;
+	int i;
+
+	if (!pd_names)
+		return 0;
+
+	while (pd_names[num_pds])
+		num_pds++;
+
+	for (i = 0; i < num_pds; i++) {
+		devs[i] = dev_pm_domain_attach_by_name(dev, pd_names[i]);
+		if (IS_ERR(devs[i])) {
+			ret = PTR_ERR(devs[i]);
+			goto unroll_attach;
+		}
+	}
+
+	return num_pds;
+
+unroll_attach:
+	for (i--; i >= 0; i--)
+		dev_pm_domain_detach(devs[i], false);
+
+	return ret;
+};
+
+static void q6v5_pds_detach(struct q6v5 *qproc, struct device **pds,
+			    size_t pd_count)
+{
+	int i;
+
+	for (i = 0; i < pd_count; i++)
+		dev_pm_domain_detach(pds[i], false);
+}
+
 static int q6v5_init_reset(struct q6v5 *qproc)
 {
 	qproc->mss_restart = devm_reset_control_get_exclusive(qproc->dev,
@@ -1253,6 +1369,7 @@ static int q6v5_probe(struct platform_device *pdev)
 	const struct rproc_hexagon_res *desc;
 	struct q6v5 *qproc;
 	struct rproc *rproc;
+	const char *mba_image;
 	int ret;
 
 	desc = of_device_get_match_data(&pdev->dev);
@@ -1262,16 +1379,30 @@ static int q6v5_probe(struct platform_device *pdev)
 	if (desc->need_mem_protection && !qcom_scm_is_available())
 		return -EPROBE_DEFER;
 
+	mba_image = desc->hexagon_mba_image;
+	ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
+					    0, &mba_image);
+	if (ret < 0 && ret != -EINVAL)
+		return ret;
+
 	rproc = rproc_alloc(&pdev->dev, pdev->name, &q6v5_ops,
-			    desc->hexagon_mba_image, sizeof(*qproc));
+			    mba_image, sizeof(*qproc));
 	if (!rproc) {
 		dev_err(&pdev->dev, "failed to allocate rproc\n");
 		return -ENOMEM;
 	}
 
+	rproc->auto_boot = false;
+
 	qproc = (struct q6v5 *)rproc->priv;
 	qproc->dev = &pdev->dev;
 	qproc->rproc = rproc;
+	qproc->hexagon_mdt_image = "modem.mdt";
+	ret = of_property_read_string_index(pdev->dev.of_node, "firmware-name",
+					    1, &qproc->hexagon_mdt_image);
+	if (ret < 0 && ret != -EINVAL)
+		return ret;
+
 	platform_set_drvdata(pdev, qproc);
 
 	ret = q6v5_init_mem(qproc, pdev);
@@ -1322,10 +1453,26 @@ static int q6v5_probe(struct platform_device *pdev)
 	}
 	qproc->active_reg_count = ret;
 
+	ret = q6v5_pds_attach(&pdev->dev, qproc->active_pds,
+			      desc->active_pd_names);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to attach active power domains\n");
+		goto free_rproc;
+	}
+	qproc->active_pd_count = ret;
+
+	ret = q6v5_pds_attach(&pdev->dev, qproc->proxy_pds,
+			      desc->proxy_pd_names);
+	if (ret < 0) {
+		dev_err(&pdev->dev, "Failed to init power domains\n");
+		goto detach_active_pds;
+	}
+	qproc->proxy_pd_count = ret;
+
 	qproc->has_alt_reset = desc->has_alt_reset;
 	ret = q6v5_init_reset(qproc);
 	if (ret)
-		goto free_rproc;
+		goto detach_proxy_pds;
 
 	qproc->version = desc->version;
 	qproc->need_mem_protection = desc->need_mem_protection;
@@ -1333,7 +1480,7 @@ static int q6v5_probe(struct platform_device *pdev)
 	ret = qcom_q6v5_init(&qproc->q6v5, pdev, rproc, MPSS_CRASH_REASON_SMEM,
 			     qcom_msa_handover);
 	if (ret)
-		goto free_rproc;
+		goto detach_proxy_pds;
 
 	qproc->mpss_perm = BIT(QCOM_SCM_VMID_HLOS);
 	qproc->mba_perm = BIT(QCOM_SCM_VMID_HLOS);
@@ -1341,13 +1488,21 @@ static int q6v5_probe(struct platform_device *pdev)
 	qcom_add_smd_subdev(rproc, &qproc->smd_subdev);
 	qcom_add_ssr_subdev(rproc, &qproc->ssr_subdev, "mpss");
 	qproc->sysmon = qcom_add_sysmon_subdev(rproc, "modem", 0x12);
+	if (IS_ERR(qproc->sysmon)) {
+		ret = PTR_ERR(qproc->sysmon);
+		goto detach_proxy_pds;
+	}
 
 	ret = rproc_add(rproc);
 	if (ret)
-		goto free_rproc;
+		goto detach_proxy_pds;
 
 	return 0;
 
+detach_proxy_pds:
+	q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+detach_active_pds:
+	q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
 free_rproc:
 	rproc_free(rproc);
 
@@ -1364,6 +1519,10 @@ static int q6v5_remove(struct platform_device *pdev)
 	qcom_remove_glink_subdev(qproc->rproc, &qproc->glink_subdev);
 	qcom_remove_smd_subdev(qproc->rproc, &qproc->smd_subdev);
 	qcom_remove_ssr_subdev(qproc->rproc, &qproc->ssr_subdev);
+
+	q6v5_pds_detach(qproc, qproc->active_pds, qproc->active_pd_count);
+	q6v5_pds_detach(qproc, qproc->proxy_pds, qproc->proxy_pd_count);
+
 	rproc_free(qproc->rproc);
 
 	return 0;
@@ -1388,6 +1547,16 @@ static const struct rproc_hexagon_res sdm845_mss = {
 			"mnoc_axi",
 			NULL
 	},
+	.active_pd_names = (char*[]){
+			"load_state",
+			NULL
+	},
+	.proxy_pd_names = (char*[]){
+			"cx",
+			"mx",
+			"mss",
+			NULL
+	},
 	.need_mem_protection = true,
 	.has_alt_reset = true,
 	.version = MSS_SDM845,
@@ -1395,16 +1564,26 @@ static const struct rproc_hexagon_res sdm845_mss = {
 
 static const struct rproc_hexagon_res msm8996_mss = {
 	.hexagon_mba_image = "mba.mbn",
+	.proxy_supply = (struct qcom_mss_reg_res[]) {
+		{
+			.supply = "pll",
+			.uA = 100000,
+		},
+		{}
+	},
 	.proxy_clk_names = (char*[]){
 			"xo",
 			"pnoc",
+			"qdss",
 			NULL
 	},
 	.active_clk_names = (char*[]){
 			"iface",
 			"bus",
 			"mem",
-			"gpll0_mss_clk",
+			"gpll0_mss",
+			"snoc_axi",
+			"mnoc_axi",
 			NULL
 	},
 	.need_mem_protection = true,
diff --git a/drivers/remoteproc/qcom_q6v5_pas.c b/drivers/remoteproc/qcom_q6v5_pas.c
index b1e63fcd5fdf..f280f196d007 100644
--- a/drivers/remoteproc/qcom_q6v5_pas.c
+++ b/drivers/remoteproc/qcom_q6v5_pas.c
@@ -258,6 +258,7 @@ static int adsp_probe(struct platform_device *pdev)
 	const struct adsp_data *desc;
 	struct qcom_adsp *adsp;
 	struct rproc *rproc;
+	const char *fw_name;
 	int ret;
 
 	desc = of_device_get_match_data(&pdev->dev);
@@ -267,8 +268,14 @@ static int adsp_probe(struct platform_device *pdev)
 	if (!qcom_scm_is_available())
 		return -EPROBE_DEFER;
 
+	fw_name = desc->firmware_name;
+	ret = of_property_read_string(pdev->dev.of_node, "firmware-name",
+				      &fw_name);
+	if (ret < 0 && ret != -EINVAL)
+		return ret;
+
 	rproc = rproc_alloc(&pdev->dev, pdev->name, &adsp_ops,
-			    desc->firmware_name, sizeof(*adsp));
+			    fw_name, sizeof(*adsp));
 	if (!rproc) {
 		dev_err(&pdev->dev, "unable to allocate remoteproc\n");
 		return -ENOMEM;
@@ -304,6 +311,10 @@ static int adsp_probe(struct platform_device *pdev)
 	adsp->sysmon = qcom_add_sysmon_subdev(rproc,
 					      desc->sysmon_name,
 					      desc->ssctl_id);
+	if (IS_ERR(adsp->sysmon)) {
+		ret = PTR_ERR(adsp->sysmon);
+		goto free_rproc;
+	}
 
 	ret = rproc_add(rproc);
 	if (ret)
diff --git a/drivers/remoteproc/qcom_sysmon.c b/drivers/remoteproc/qcom_sysmon.c
index e976a602b015..c231314eab66 100644
--- a/drivers/remoteproc/qcom_sysmon.c
+++ b/drivers/remoteproc/qcom_sysmon.c
@@ -6,8 +6,9 @@
 #include <linux/module.h>
 #include <linux/notifier.h>
 #include <linux/slab.h>
+#include <linux/interrupt.h>
 #include <linux/io.h>
-#include <linux/notifier.h>
+#include <linux/of_irq.h>
 #include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/remoteproc/qcom_rproc.h>
@@ -25,6 +26,7 @@ struct qcom_sysmon {
 
 	const char *name;
 
+	int shutdown_irq;
 	int ssctl_version;
 	int ssctl_instance;
 
@@ -34,6 +36,8 @@ struct qcom_sysmon {
 
 	struct rpmsg_endpoint *ept;
 	struct completion comp;
+	struct completion ind_comp;
+	struct completion shutdown_comp;
 	struct mutex lock;
 
 	bool ssr_ack;
@@ -137,6 +141,7 @@ static int sysmon_callback(struct rpmsg_device *rpdev, void *data, int count,
 }
 
 #define SSCTL_SHUTDOWN_REQ		0x21
+#define SSCTL_SHUTDOWN_READY_IND	0x21
 #define SSCTL_SUBSYS_EVENT_REQ		0x23
 
 #define SSCTL_MAX_MSG_LEN		7
@@ -252,6 +257,29 @@ static struct qmi_elem_info ssctl_subsys_event_resp_ei[] = {
 	{}
 };
 
+static struct qmi_elem_info ssctl_shutdown_ind_ei[] = {
+	{}
+};
+
+static void sysmon_ind_cb(struct qmi_handle *qmi, struct sockaddr_qrtr *sq,
+			  struct qmi_txn *txn, const void *data)
+{
+	struct qcom_sysmon *sysmon = container_of(qmi, struct qcom_sysmon, qmi);
+
+	complete(&sysmon->ind_comp);
+}
+
+static struct qmi_msg_handler qmi_indication_handler[] = {
+	{
+		.type = QMI_INDICATION,
+		.msg_id = SSCTL_SHUTDOWN_READY_IND,
+		.ei = ssctl_shutdown_ind_ei,
+		.decoded_size = 0,
+		.fn = sysmon_ind_cb
+	},
+	{}
+};
+
 /**
  * ssctl_request_shutdown() - request shutdown via SSCTL QMI service
  * @sysmon:	sysmon context
@@ -262,6 +290,8 @@ static void ssctl_request_shutdown(struct qcom_sysmon *sysmon)
 	struct qmi_txn txn;
 	int ret;
 
+	reinit_completion(&sysmon->ind_comp);
+	reinit_completion(&sysmon->shutdown_comp);
 	ret = qmi_txn_init(&sysmon->qmi, &txn, ssctl_shutdown_resp_ei, &resp);
 	if (ret < 0) {
 		dev_err(sysmon->dev, "failed to allocate QMI txn\n");
@@ -283,6 +313,17 @@ static void ssctl_request_shutdown(struct qcom_sysmon *sysmon)
 		dev_err(sysmon->dev, "shutdown request failed\n");
 	else
 		dev_dbg(sysmon->dev, "shutdown request completed\n");
+
+	if (sysmon->shutdown_irq > 0) {
+		ret = wait_for_completion_timeout(&sysmon->shutdown_comp,
+						  10 * HZ);
+		if (!ret) {
+			ret = try_wait_for_completion(&sysmon->ind_comp);
+			if (!ret)
+				dev_err(sysmon->dev,
+					"timeout waiting for shutdown ack\n");
+		}
+	}
 }
 
 /**
@@ -432,6 +473,15 @@ static int sysmon_notify(struct notifier_block *nb, unsigned long event,
 	return NOTIFY_DONE;
 }
 
+static irqreturn_t sysmon_shutdown_interrupt(int irq, void *data)
+{
+	struct qcom_sysmon *sysmon = data;
+
+	complete(&sysmon->shutdown_comp);
+
+	return IRQ_HANDLED;
+}
+
 /**
  * qcom_add_sysmon_subdev() - create a sysmon subdev for the given remoteproc
  * @rproc:	rproc context to associate the subdev with
@@ -449,7 +499,7 @@ struct qcom_sysmon *qcom_add_sysmon_subdev(struct rproc *rproc,
 
 	sysmon = kzalloc(sizeof(*sysmon), GFP_KERNEL);
 	if (!sysmon)
-		return NULL;
+		return ERR_PTR(-ENOMEM);
 
 	sysmon->dev = rproc->dev.parent;
 	sysmon->rproc = rproc;
@@ -458,13 +508,37 @@ struct qcom_sysmon *qcom_add_sysmon_subdev(struct rproc *rproc,
 	sysmon->ssctl_instance = ssctl_instance;
 
 	init_completion(&sysmon->comp);
+	init_completion(&sysmon->ind_comp);
+	init_completion(&sysmon->shutdown_comp);
 	mutex_init(&sysmon->lock);
 
-	ret = qmi_handle_init(&sysmon->qmi, SSCTL_MAX_MSG_LEN, &ssctl_ops, NULL);
+	sysmon->shutdown_irq = of_irq_get_byname(sysmon->dev->of_node,
+						 "shutdown-ack");
+	if (sysmon->shutdown_irq < 0) {
+		if (sysmon->shutdown_irq != -ENODATA) {
+			dev_err(sysmon->dev,
+				"failed to retrieve shutdown-ack IRQ\n");
+			return ERR_PTR(sysmon->shutdown_irq);
+		}
+	} else {
+		ret = devm_request_threaded_irq(sysmon->dev,
+						sysmon->shutdown_irq,
+						NULL, sysmon_shutdown_interrupt,
+						IRQF_TRIGGER_RISING | IRQF_ONESHOT,
+						"q6v5 shutdown-ack", sysmon);
+		if (ret) {
+			dev_err(sysmon->dev,
+				"failed to acquire shutdown-ack IRQ\n");
+			return ERR_PTR(ret);
+		}
+	}
+
+	ret = qmi_handle_init(&sysmon->qmi, SSCTL_MAX_MSG_LEN, &ssctl_ops,
+			      qmi_indication_handler);
 	if (ret < 0) {
 		dev_err(sysmon->dev, "failed to initialize qmi handle\n");
 		kfree(sysmon);
-		return NULL;
+		return ERR_PTR(ret);
 	}
 
 	qmi_add_lookup(&sysmon->qmi, 43, 0, 0);
diff --git a/drivers/remoteproc/qcom_wcnss.c b/drivers/remoteproc/qcom_wcnss.c
index b0e07e9f42d5..adcce523971e 100644
--- a/drivers/remoteproc/qcom_wcnss.c
+++ b/drivers/remoteproc/qcom_wcnss.c
@@ -553,6 +553,10 @@ static int wcnss_probe(struct platform_device *pdev)
 
 	qcom_add_smd_subdev(rproc, &wcnss->smd_subdev);
 	wcnss->sysmon = qcom_add_sysmon_subdev(rproc, "wcnss", WCNSS_SSCTL_ID);
+	if (IS_ERR(wcnss->sysmon)) {
+		ret = PTR_ERR(wcnss->sysmon);
+		goto free_rproc;
+	}
 
 	ret = rproc_add(rproc);
 	if (ret)
@@ -622,5 +626,5 @@ static void __exit wcnss_exit(void)
 }
 module_exit(wcnss_exit);
 
-MODULE_DESCRIPTION("Qualcomm Peripherial Image Loader for Wireless Subsystem");
+MODULE_DESCRIPTION("Qualcomm Peripheral Image Loader for Wireless Subsystem");
 MODULE_LICENSE("GPL v2");
diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
index 54ec38fc5dca..48feebd6d0a2 100644
--- a/drivers/remoteproc/remoteproc_core.c
+++ b/drivers/remoteproc/remoteproc_core.c
@@ -39,12 +39,16 @@
 #include <linux/idr.h>
 #include <linux/elf.h>
 #include <linux/crc32.h>
+#include <linux/of_reserved_mem.h>
 #include <linux/virtio_ids.h>
 #include <linux/virtio_ring.h>
 #include <asm/byteorder.h>
+#include <linux/platform_device.h>
 
 #include "remoteproc_internal.h"
 
+#define HIGH_BITS_MASK 0xFFFFFFFF00000000ULL
+
 static DEFINE_MUTEX(rproc_list_mutex);
 static LIST_HEAD(rproc_list);
 
@@ -145,7 +149,7 @@ static void rproc_disable_iommu(struct rproc *rproc)
 	iommu_domain_free(domain);
 }
 
-static phys_addr_t rproc_va_to_pa(void *cpu_addr)
+phys_addr_t rproc_va_to_pa(void *cpu_addr)
 {
 	/*
 	 * Return physical address according to virtual address location
@@ -160,6 +164,7 @@ static phys_addr_t rproc_va_to_pa(void *cpu_addr)
 	WARN_ON(!virt_addr_valid(cpu_addr));
 	return virt_to_phys(cpu_addr);
 }
+EXPORT_SYMBOL(rproc_va_to_pa);
 
 /**
  * rproc_da_to_va() - lookup the kernel virtual address for a remoteproc address
@@ -204,6 +209,10 @@ void *rproc_da_to_va(struct rproc *rproc, u64 da, int len)
 	list_for_each_entry(carveout, &rproc->carveouts, node) {
 		int offset = da - carveout->da;
 
+		/*  Verify that carveout is allocated */
+		if (!carveout->va)
+			continue;
+
 		/* try next carveout if da is too small */
 		if (offset < 0)
 			continue;
@@ -272,25 +281,27 @@ rproc_find_carveout_by_name(struct rproc *rproc, const char *name, ...)
  * @len: associated area size
  *
  * This function is a helper function to verify requested device area (couple
- * da, len) is part of specified carevout.
+ * da, len) is part of specified carveout.
+ * If da is not set (defined as FW_RSC_ADDR_ANY), only requested length is
+ * checked.
  *
- * Return: 0 if carveout match request else -ENOMEM
+ * Return: 0 if carveout matches request else error
  */
-int rproc_check_carveout_da(struct rproc *rproc, struct rproc_mem_entry *mem,
-			    u32 da, u32 len)
+static int rproc_check_carveout_da(struct rproc *rproc,
+				   struct rproc_mem_entry *mem, u32 da, u32 len)
 {
 	struct device *dev = &rproc->dev;
-	int delta = 0;
+	int delta;
 
 	/* Check requested resource length */
 	if (len > mem->len) {
 		dev_err(dev, "Registered carveout doesn't fit len request\n");
-		return -ENOMEM;
+		return -EINVAL;
 	}
 
 	if (da != FW_RSC_ADDR_ANY && mem->da == FW_RSC_ADDR_ANY) {
-		/* Update existing carveout da */
-		mem->da = da;
+		/* Address doesn't match registered carveout configuration */
+		return -EINVAL;
 	} else if (da != FW_RSC_ADDR_ANY && mem->da != FW_RSC_ADDR_ANY) {
 		delta = da - mem->da;
 
@@ -298,13 +309,13 @@ int rproc_check_carveout_da(struct rproc *rproc, struct rproc_mem_entry *mem,
 		if (delta < 0) {
 			dev_err(dev,
 				"Registered carveout doesn't fit da request\n");
-			return -ENOMEM;
+			return -EINVAL;
 		}
 
 		if (delta + len > mem->len) {
 			dev_err(dev,
 				"Registered carveout doesn't fit len request\n");
-			return -ENOMEM;
+			return -EINVAL;
 		}
 	}
 
@@ -418,8 +429,25 @@ static int rproc_vdev_do_start(struct rproc_subdev *subdev)
 static void rproc_vdev_do_stop(struct rproc_subdev *subdev, bool crashed)
 {
 	struct rproc_vdev *rvdev = container_of(subdev, struct rproc_vdev, subdev);
+	int ret;
 
-	rproc_remove_virtio_dev(rvdev);
+	ret = device_for_each_child(&rvdev->dev, NULL, rproc_remove_virtio_dev);
+	if (ret)
+		dev_warn(&rvdev->dev, "can't remove vdev child device: %d\n", ret);
+}
+
+/**
+ * rproc_rvdev_release() - release the existence of a rvdev
+ *
+ * @dev: the subdevice's dev
+ */
+static void rproc_rvdev_release(struct device *dev)
+{
+	struct rproc_vdev *rvdev = container_of(dev, struct rproc_vdev, dev);
+
+	of_reserved_mem_device_release(dev);
+
+	kfree(rvdev);
 }
 
 /**
@@ -455,6 +483,7 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc,
 	struct device *dev = &rproc->dev;
 	struct rproc_vdev *rvdev;
 	int i, ret;
+	char name[16];
 
 	/* make sure resource isn't truncated */
 	if (sizeof(*rsc) + rsc->num_of_vrings * sizeof(struct fw_rsc_vdev_vring)
@@ -488,6 +517,29 @@ static int rproc_handle_vdev(struct rproc *rproc, struct fw_rsc_vdev *rsc,
 	rvdev->rproc = rproc;
 	rvdev->index = rproc->nb_vdev++;
 
+	/* Initialise vdev subdevice */
+	snprintf(name, sizeof(name), "vdev%dbuffer", rvdev->index);
+	rvdev->dev.parent = rproc->dev.parent;
+	rvdev->dev.release = rproc_rvdev_release;
+	dev_set_name(&rvdev->dev, "%s#%s", dev_name(rvdev->dev.parent), name);
+	dev_set_drvdata(&rvdev->dev, rvdev);
+
+	ret = device_register(&rvdev->dev);
+	if (ret) {
+		put_device(&rvdev->dev);
+		return ret;
+	}
+	/* Make device dma capable by inheriting from parent's capabilities */
+	set_dma_ops(&rvdev->dev, get_dma_ops(rproc->dev.parent));
+
+	ret = dma_coerce_mask_and_coherent(&rvdev->dev,
+					   dma_get_mask(rproc->dev.parent));
+	if (ret) {
+		dev_warn(dev,
+			 "Failed to set DMA mask %llx. Trying to continue... %x\n",
+			 dma_get_mask(rproc->dev.parent), ret);
+	}
+
 	/* parse the vrings */
 	for (i = 0; i < rsc->num_of_vrings; i++) {
 		ret = rproc_parse_vring(rvdev, rsc, i);
@@ -518,7 +570,7 @@ unwind_vring_allocations:
 	for (i--; i >= 0; i--)
 		rproc_free_vring(&rvdev->vring[i]);
 free_rvdev:
-	kfree(rvdev);
+	device_unregister(&rvdev->dev);
 	return ret;
 }
 
@@ -536,7 +588,7 @@ void rproc_vdev_release(struct kref *ref)
 
 	rproc_remove_subdev(rproc, &rvdev->subdev);
 	list_del(&rvdev->node);
-	kfree(rvdev);
+	device_unregister(&rvdev->dev);
 }
 
 /**
@@ -558,9 +610,8 @@ void rproc_vdev_release(struct kref *ref)
 static int rproc_handle_trace(struct rproc *rproc, struct fw_rsc_trace *rsc,
 			      int offset, int avail)
 {
-	struct rproc_mem_entry *trace;
+	struct rproc_debug_trace *trace;
 	struct device *dev = &rproc->dev;
-	void *ptr;
 	char name[15];
 
 	if (sizeof(*rsc) > avail) {
@@ -574,28 +625,23 @@ static int rproc_handle_trace(struct rproc *rproc, struct fw_rsc_trace *rsc,
 		return -EINVAL;
 	}
 
-	/* what's the kernel address of this resource ? */
-	ptr = rproc_da_to_va(rproc, rsc->da, rsc->len);
-	if (!ptr) {
-		dev_err(dev, "erroneous trace resource entry\n");
-		return -EINVAL;
-	}
-
 	trace = kzalloc(sizeof(*trace), GFP_KERNEL);
 	if (!trace)
 		return -ENOMEM;
 
 	/* set the trace buffer dma properties */
-	trace->len = rsc->len;
-	trace->va = ptr;
+	trace->trace_mem.len = rsc->len;
+	trace->trace_mem.da = rsc->da;
+
+	/* set pointer on rproc device */
+	trace->rproc = rproc;
 
 	/* make sure snprintf always null terminates, even if truncating */
 	snprintf(name, sizeof(name), "trace%d", rproc->num_traces);
 
 	/* create the debugfs entry */
-	trace->priv = rproc_create_trace_file(name, rproc, trace);
-	if (!trace->priv) {
-		trace->va = NULL;
+	trace->tfile = rproc_create_trace_file(name, rproc, trace);
+	if (!trace->tfile) {
 		kfree(trace);
 		return -EINVAL;
 	}
@@ -604,8 +650,8 @@ static int rproc_handle_trace(struct rproc *rproc, struct fw_rsc_trace *rsc,
 
 	rproc->num_traces++;
 
-	dev_dbg(dev, "%s added: va %pK, da 0x%x, len 0x%x\n",
-		name, ptr, rsc->da, rsc->len);
+	dev_dbg(dev, "%s added: da 0x%x, len 0x%x\n",
+		name, rsc->da, rsc->len);
 
 	return 0;
 }
@@ -715,6 +761,18 @@ static int rproc_alloc_carveout(struct rproc *rproc,
 	dev_dbg(dev, "carveout va %pK, dma %pad, len 0x%x\n",
 		va, &dma, mem->len);
 
+	if (mem->da != FW_RSC_ADDR_ANY && !rproc->domain) {
+		/*
+		 * Check requested da is equal to dma address
+		 * and print a warn message in case of missalignment.
+		 * Don't stop rproc_start sequence as coprocessor may
+		 * build pa to da translation on its side.
+		 */
+		if (mem->da != (u32)dma)
+			dev_warn(dev->parent,
+				 "Allocated carveout doesn't fit device address request\n");
+	}
+
 	/*
 	 * Ok, this is non-standard.
 	 *
@@ -732,15 +790,7 @@ static int rproc_alloc_carveout(struct rproc *rproc,
 	 * to use the iommu-based DMA API: we expect 'dma' to contain the
 	 * physical address in this case.
 	 */
-
-	if (mem->da != FW_RSC_ADDR_ANY) {
-		if (!rproc->domain) {
-			dev_err(dev->parent,
-				"Bad carveout rsc configuration\n");
-			ret = -ENOMEM;
-			goto dma_free;
-		}
-
+	if (mem->da != FW_RSC_ADDR_ANY && rproc->domain) {
 		mapping = kzalloc(sizeof(*mapping), GFP_KERNEL);
 		if (!mapping) {
 			ret = -ENOMEM;
@@ -767,11 +817,17 @@ static int rproc_alloc_carveout(struct rproc *rproc,
 
 		dev_dbg(dev, "carveout mapped 0x%x to %pad\n",
 			mem->da, &dma);
-	} else {
+	}
+
+	if (mem->da == FW_RSC_ADDR_ANY) {
+		/* Update device address as undefined by requester */
+		if ((u64)dma & HIGH_BITS_MASK)
+			dev_warn(dev, "DMA address cast in 32bit to fit resource table format\n");
+
 		mem->da = (u32)dma;
 	}
 
-	mem->dma = (u32)dma;
+	mem->dma = dma;
 	mem->va = va;
 
 	return 0;
@@ -900,7 +956,8 @@ EXPORT_SYMBOL(rproc_add_carveout);
  * @dma: dma address
  * @len: memory carveout length
  * @da: device address
- * @release: memory carveout function
+ * @alloc: memory carveout allocation function
+ * @release: memory carveout release function
  * @name: carveout name
  *
  * This function allocates a rproc_mem_entry struct and fill it with parameters
@@ -