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authorLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2026-08-19 10:09:22 -0700
commitf4cdf7ca9a1fdcca413157df19753f388a5a224e (patch)
tree60a31895b2446cd7fa27514e8c2843534a0de0da /sound/soc/sof/sof-client-probes-ipc3.c
downloadlinux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.tar.gz
linux-stable-f4cdf7ca9a1fdcca413157df19753f388a5a224e.zip
Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-mediagrafted
Pull media updates from Mauro Carvalho Chehab: - v4l2-core: added ISP statistics support and per-block validation - v4l2-core: Allow unknown HDR10 white point and luminance - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor - New codec: Milos: VPU v2.0 codec support - isp driver: gained support for Dreamchip RPPX1 ISP framework - vsp1 driver: gained support for RZ/T2H and RZ/N2H - Novalake driver: gained CVS support for new NVL hardware - dvb-core: fix feed leak on failed DMX_ADD_PID - several driver fixes, cleanups and minor improvements * tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits) media: ipu-bridge: check all DMI entries when overriding sensor rotation media: v4l2-async: avoid deleting unlinked ASC entry on link error media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement media: intel/ipu6: fix async notifier cleanup leak on parse error media: staging/ipu7: fix async notifier UAF on probe error path media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem() media: rcar-isp: Fix VSPX reference leaks media: rcar-isp: Release ISPCORE resources media: i2c: imx415: Release runtime PM reference on VBLANK error media: i2c: imx415: Return test pattern write errors media: renesas: vsp1: Declare index variables in for loop statement media: renesas: vsp1: Make reset control optional to support platforms without a reset line media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs media: nxp: imx8-isi: Add additional 32-bit RGB format support media: nxp: imx8-isi: Add 16-bit raw Bayer format support media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks media: nxp: imx8-isi: Correct color map between V4L2 and ISI ...
Diffstat (limited to 'sound/soc/sof/sof-client-probes-ipc3.c')
-rw-r--r--sound/soc/sof/sof-client-probes-ipc3.c258
1 files changed, 258 insertions, 0 deletions
diff --git a/sound/soc/sof/sof-client-probes-ipc3.c b/sound/soc/sof/sof-client-probes-ipc3.c
new file mode 100644
index 000000000..a3e382d61
--- /dev/null
+++ b/sound/soc/sof/sof-client-probes-ipc3.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0-only
+//
+// Copyright(c) 2019-2022 Intel Corporation
+//
+// Author: Cezary Rojewski <cezary.rojewski@intel.com>
+//
+// Code moved to this file by:
+// Jyri Sarha <jyri.sarha@intel.com>
+//
+
+#include <linux/stddef.h>
+#include <sound/soc.h>
+#include <sound/sof/header.h>
+#include "sof-client.h"
+#include "sof-client-probes.h"
+
+struct sof_probe_dma {
+ unsigned int stream_tag;
+ unsigned int dma_buffer_size;
+} __packed;
+
+struct sof_ipc_probe_dma_add_params {
+ struct sof_ipc_cmd_hdr hdr;
+ unsigned int num_elems;
+ struct sof_probe_dma dma[];
+} __packed;
+
+struct sof_ipc_probe_info_params {
+ struct sof_ipc_reply rhdr;
+ unsigned int num_elems;
+ union {
+ DECLARE_FLEX_ARRAY(struct sof_probe_dma, dma);
+ DECLARE_FLEX_ARRAY(struct sof_probe_point_desc, desc);
+ };
+} __packed;
+
+struct sof_ipc_probe_point_add_params {
+ struct sof_ipc_cmd_hdr hdr;
+ unsigned int num_elems;
+ struct sof_probe_point_desc desc[];
+} __packed;
+
+struct sof_ipc_probe_point_remove_params {
+ struct sof_ipc_cmd_hdr hdr;
+ unsigned int num_elems;
+ unsigned int buffer_id[];
+} __packed;
+
+/**
+ * ipc3_probes_init - initialize data probing
+ * @cdev: SOF client device
+ * @stream_tag: Extractor stream tag
+ * @buffer_size: DMA buffer size to set for extractor
+ *
+ * Host chooses whether extraction is supported or not by providing
+ * valid stream tag to DSP. Once specified, stream described by that
+ * tag will be tied to DSP for extraction for the entire lifetime of
+ * probe.
+ *
+ * Probing is initialized only once and each INIT request must be
+ * matched by DEINIT call.
+ */
+static int ipc3_probes_init(struct sof_client_dev *cdev, u32 stream_tag,
+ size_t buffer_size)
+{
+ struct sof_ipc_probe_dma_add_params *msg;
+ size_t size = struct_size(msg, dma, 1);
+ int ret;
+
+ msg = kmalloc(size, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+ msg->hdr.size = size;
+ msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_INIT;
+ msg->num_elems = 1;
+ msg->dma[0].stream_tag = stream_tag;
+ msg->dma[0].dma_buffer_size = buffer_size;
+
+ ret = sof_client_ipc_tx_message_no_reply(cdev, msg);
+ kfree(msg);
+ return ret;
+}
+
+/**
+ * ipc3_probes_deinit - cleanup after data probing
+ * @cdev: SOF client device
+ *
+ * Host sends DEINIT request to free previously initialized probe
+ * on DSP side once it is no longer needed. DEINIT only when there
+ * are no probes connected and with all injectors detached.
+ */
+static int ipc3_probes_deinit(struct sof_client_dev *cdev)
+{
+ struct sof_ipc_cmd_hdr msg;
+
+ msg.size = sizeof(msg);
+ msg.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_DEINIT;
+
+ return sof_client_ipc_tx_message_no_reply(cdev, &msg);
+}
+
+static int ipc3_probes_info(struct sof_client_dev *cdev, unsigned int cmd,
+ void **params, size_t *num_params,
+ enum sof_probe_info_type type)
+{
+ size_t max_msg_size = sof_client_get_ipc_max_payload_size(cdev);
+ struct device *dev = &cdev->auxdev.dev;
+ struct sof_ipc_probe_info_params msg = {{{0}}};
+ struct sof_ipc_probe_info_params *reply;
+ size_t bytes, elem_size, payload_size;
+ int ret;
+
+ *params = NULL;
+ *num_params = 0;
+
+ if (type != PROBES_INFO_ACTIVE_PROBES) {
+ dev_err(dev, "%s: info type %u not supported", __func__, type);
+ return -EOPNOTSUPP;
+ }
+
+ reply = kzalloc(max_msg_size, GFP_KERNEL);
+ if (!reply)
+ return -ENOMEM;
+ msg.rhdr.hdr.size = sizeof(msg);
+ msg.rhdr.hdr.cmd = SOF_IPC_GLB_PROBE | cmd;
+
+ ret = sof_client_ipc_tx_message(cdev, &msg, reply, max_msg_size);
+ if (ret < 0 || reply->rhdr.error < 0)
+ goto exit;
+
+ payload_size = reply->rhdr.hdr.size;
+ if (payload_size < offsetof(struct sof_ipc_probe_info_params, dma)) {
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ if (!reply->num_elems)
+ goto exit;
+
+ if (cmd == SOF_IPC_PROBE_DMA_INFO)
+ elem_size = sizeof(reply->dma[0]);
+ else
+ elem_size = sizeof(reply->desc[0]);
+
+ payload_size -= offsetof(struct sof_ipc_probe_info_params, dma);
+ if (reply->num_elems > payload_size / elem_size) {
+ dev_err(dev, "%s: invalid probe info element count %u\n",
+ __func__, reply->num_elems);
+ ret = -EINVAL;
+ goto exit;
+ }
+
+ bytes = reply->num_elems * elem_size;
+ *params = kmemdup(&reply->dma[0], bytes, GFP_KERNEL);
+ if (!*params) {
+ ret = -ENOMEM;
+ goto exit;
+ }
+ *num_params = reply->num_elems;
+
+exit:
+ kfree(reply);
+ return ret;
+}
+
+/**
+ * ipc3_probes_points_info - retrieve list of probe points
+ * @cdev: SOF client device
+ * @desc: Returned list of active probes
+ * @num_desc: Returned count of active probes
+ * @type: Either PROBES_INFO_ACTIVE_PROBES or PROBES_INFO_AVAILABE_PROBES
+ *
+ * If type is PROBES_INFO_ACTIVE_PROBES, host sends PROBE_POINT_INFO
+ * request to obtain list of active probe points, valid for
+ * disconnection when given probe is no longer required.
+ *
+ * Type PROBES_INFO_AVAILABE_PROBES is not yet supported.
+ */
+static int ipc3_probes_points_info(struct sof_client_dev *cdev,
+ struct sof_probe_point_desc **desc,
+ size_t *num_desc,
+ enum sof_probe_info_type type)
+{
+ return ipc3_probes_info(cdev, SOF_IPC_PROBE_POINT_INFO,
+ (void **)desc, num_desc, type);
+}
+
+/**
+ * ipc3_probes_points_add - connect specified probes
+ * @cdev: SOF client device
+ * @desc: List of probe points to connect
+ * @num_desc: Number of elements in @desc
+ *
+ * Dynamically connects to provided set of endpoints. Immediately
+ * after connection is established, host must be prepared to
+ * transfer data from or to target stream given the probing purpose.
+ *
+ * Each probe point should be removed using PROBE_POINT_REMOVE
+ * request when no longer needed.
+ */
+static int ipc3_probes_points_add(struct sof_client_dev *cdev,
+ struct sof_probe_point_desc *desc,
+ size_t num_desc)
+{
+ struct sof_ipc_probe_point_add_params *msg;
+ size_t size = struct_size(msg, desc, num_desc);
+ int ret;
+
+ msg = kmalloc(size, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+ msg->hdr.size = size;
+ msg->num_elems = num_desc;
+ msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_POINT_ADD;
+ memcpy(&msg->desc[0], desc, size - sizeof(*msg));
+
+ ret = sof_client_ipc_tx_message_no_reply(cdev, msg);
+ kfree(msg);
+ return ret;
+}
+
+/**
+ * ipc3_probes_points_remove - disconnect specified probes
+ * @cdev: SOF client device
+ * @buffer_id: List of probe points to disconnect
+ * @num_buffer_id: Number of elements in @desc
+ *
+ * Removes previously connected probes from list of active probe
+ * points and frees all resources on DSP side.
+ */
+static int ipc3_probes_points_remove(struct sof_client_dev *cdev,
+ unsigned int *buffer_id,
+ size_t num_buffer_id)
+{
+ struct sof_ipc_probe_point_remove_params *msg;
+ size_t size = struct_size(msg, buffer_id, num_buffer_id);
+ int ret;
+
+ msg = kmalloc(size, GFP_KERNEL);
+ if (!msg)
+ return -ENOMEM;
+ msg->hdr.size = size;
+ msg->num_elems = num_buffer_id;
+ msg->hdr.cmd = SOF_IPC_GLB_PROBE | SOF_IPC_PROBE_POINT_REMOVE;
+ memcpy(&msg->buffer_id[0], buffer_id, size - sizeof(*msg));
+
+ ret = sof_client_ipc_tx_message_no_reply(cdev, msg);
+ kfree(msg);
+ return ret;
+}
+
+const struct sof_probes_ipc_ops ipc3_probe_ops = {
+ .init = ipc3_probes_init,
+ .deinit = ipc3_probes_deinit,
+ .points_info = ipc3_probes_points_info,
+ .points_add = ipc3_probes_points_add,
+ .points_remove = ipc3_probes_points_remove,
+};