Merge tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linuxgrafted

Pull I3C updates from Alexandre Belloni:
 "A new driver this cycle, for the AMD AXI I3C controller.

  There are also new features such as IBI wakeup support, SETAASA device
  discovery and ACPI support for the the DAA methods, meaning we can now
  communicate with the SPD devices on DDR5 modules.

  New driver:
   - AMD AXI I3C master controller

  Subsystem:
   - I3C Common Command Code (CCC) handling improvements, especially
     around GET CCCs
   - SETAASA device discovery support
   - ACPI support for all existing DAA methods like SETDASA, SETNEWDA as
     well as I2C devices on I3C bus
   - IBI-based wakeup support

  Drivers:
   - dw: SETAASA support
   - mipi-i3c-hci: advertise IBI wakeup capability, AMD_PT I3C
     controller support, PIO queue management support for HCI v1.2
   - renesas: improve suspend to RAM support, add runtime PM support"

* tag 'i3c/for-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/i3c/linux: (70 commits)
  i3c: dw: reduce do_daa time if there's no client
  i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
  i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
  i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
  i3c: dw: rename "pclk" to "apb" to match dt-binding
  i3c: dw: make struct dw_i3c_cmd smaller
  i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
  i3c: renesas: Don't register devices when ENTDAA times out
  i3c: master: dw-i3c-master: fix OD timing for first broadcast
  i3c: mipi-i3c-hci: Advertise IBI wakeup capability
  i3c: mipi-i3c-hci: Factor out i3c_hci_sysdev()
  i3c: mipi-i3c-hci-pci: Propagate I3C wakeup requirements to PCI
  i3c: master: Reject IBI requests from non-IBI-capable devices
  i3c: master: Add helper to query bus wakeup requirements
  i3c: master: Report wakeup events for IBIs
  i3c: master: Support IBI-based wakeup capability
  i3c: master: Fix potential UAF in i3c_device_match()
  i3c: master: Fix potential UAF in i3c_device_uevent()
  i3c: Make dev->desc locking assumptions explicit
  i3c: master: Fix use-after-free of master->this
  ...

1 files changed, 404 insertions, 0 deletions

diff --git a/sound/soc/sof/compress.c b/sound/soc/sof/compress.c
new file mode 100644
index 000000000..93f237658
--- /dev/null
+++ b/sound/soc/sof/compress.c
@@ -0,0 +1,404 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
+//
+// Copyright 2021 NXP
+//
+// Author: Daniel Baluta <daniel.baluta@nxp.com>
+
+#include <sound/soc.h>
+#include <sound/sof.h>
+#include <sound/compress_driver.h>
+#include "sof-audio.h"
+#include "sof-priv.h"
+#include "sof-utils.h"
+#include "ops.h"
+
+static void sof_set_transferred_bytes(struct sof_compr_stream *sstream,
+				      u64 host_pos, u64 buffer_size)
+{
+	u64 prev_pos;
+	unsigned int copied;
+
+	div64_u64_rem(sstream->copied_total, buffer_size, &prev_pos);
+
+	if (host_pos < prev_pos)
+		copied = (buffer_size - prev_pos) + host_pos;
+	else
+		copied = host_pos - prev_pos;
+
+	sstream->copied_total += copied;
+}
+
+static void snd_sof_compr_fragment_elapsed_work(struct work_struct *work)
+{
+	struct snd_sof_pcm_stream *sps =
+		container_of(work, struct snd_sof_pcm_stream,
+			     period_elapsed_work);
+
+	snd_compr_fragment_elapsed(sps->cstream);
+}
+
+void snd_sof_compr_init_elapsed_work(struct work_struct *work)
+{
+	INIT_WORK(work, snd_sof_compr_fragment_elapsed_work);
+}
+
+/*
+ * sof compr fragment elapse, this could be called in irq thread context
+ */
+void snd_sof_compr_fragment_elapsed(struct snd_compr_stream *cstream)
+{
+	struct snd_soc_pcm_runtime *rtd;
+	struct snd_compr_runtime *crtd;
+	struct snd_soc_component *component;
+	struct sof_compr_stream *sstream;
+	struct snd_sof_pcm *spcm;
+
+	if (!cstream)
+		return;
+
+	rtd = cstream->private_data;
+	crtd = cstream->runtime;
+	sstream = crtd->private_data;
+	component = snd_soc_rtdcom_lookup(rtd, SOF_AUDIO_PCM_DRV_NAME);
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm) {
+		dev_err(component->dev,
+			"fragment elapsed called for unknown stream!\n");
+		return;
+	}
+
+	sof_set_transferred_bytes(sstream, spcm->stream[cstream->direction].posn.host_posn,
+				  crtd->buffer_size);
+
+	/* use the same workqueue-based solution as for PCM, cf. snd_sof_pcm_elapsed */
+	schedule_work(&spcm->stream[cstream->direction].period_elapsed_work);
+}
+
+static int create_page_table(struct snd_soc_component *component,
+			     struct snd_compr_stream *cstream,
+			     unsigned char *dma_area, size_t size)
+{
+	struct snd_dma_buffer *dmab = cstream->runtime->dma_buffer_p;
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	int dir = cstream->direction;
+	struct snd_sof_pcm *spcm;
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm)
+		return -EINVAL;
+
+	return snd_sof_create_page_table(component->dev, dmab,
+					 spcm->stream[dir].page_table.area, size);
+}
+
+static int sof_compr_open(struct snd_soc_component *component,
+			  struct snd_compr_stream *cstream)
+{
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_compr_runtime *crtd = cstream->runtime;
+	struct sof_compr_stream *sstream;
+	struct snd_sof_pcm *spcm;
+	int dir;
+
+	sstream = kzalloc_obj(*sstream);
+	if (!sstream)
+		return -ENOMEM;
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm) {
+		kfree(sstream);
+		return -EINVAL;
+	}
+
+	dir = cstream->direction;
+
+	if (spcm->stream[dir].cstream) {
+		kfree(sstream);
+		return -EBUSY;
+	}
+
+	spcm->stream[dir].cstream = cstream;
+	spcm->stream[dir].posn.host_posn = 0;
+	spcm->stream[dir].posn.dai_posn = 0;
+	spcm->prepared[dir] = false;
+
+	crtd->private_data = sstream;
+
+	return 0;
+}
+
+static int sof_compr_free(struct snd_soc_component *component,
+			  struct snd_compr_stream *cstream)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
+	struct sof_compr_stream *sstream = cstream->runtime->private_data;
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct sof_ipc_stream stream;
+	struct snd_sof_pcm *spcm;
+	int ret = 0;
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm)
+		return -EINVAL;
+
+	stream.hdr.size = sizeof(stream);
+	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_FREE;
+	stream.comp_id = spcm->stream[cstream->direction].comp_id;
+
+	if (spcm->prepared[cstream->direction]) {
+		ret = sof_ipc_tx_message_no_reply(sdev->ipc, &stream, sizeof(stream));
+		if (!ret)
+			spcm->prepared[cstream->direction] = false;
+	}
+
+	cancel_work_sync(&spcm->stream[cstream->direction].period_elapsed_work);
+	spcm->stream[cstream->direction].cstream = NULL;
+	kfree(sstream);
+
+	return ret;
+}
+
+static int sof_compr_set_params(struct snd_soc_component *component,
+				struct snd_compr_stream *cstream, struct snd_compr_params *params)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct snd_compr_runtime *crtd = cstream->runtime;
+	struct sof_ipc_pcm_params_reply ipc_params_reply;
+	struct sof_ipc_fw_ready *ready = &sdev->fw_ready;
+	struct sof_ipc_fw_version *v = &ready->version;
+	struct sof_compr_stream *sstream;
+	struct sof_ipc_pcm_params *pcm;
+	struct snd_sof_pcm *spcm;
+	size_t ext_data_size;
+	int ret;
+
+	if (v->abi_version < SOF_ABI_VER(3, 22, 0)) {
+		dev_err(component->dev,
+			"Compress params not supported with FW ABI version %d:%d:%d\n",
+			SOF_ABI_VERSION_MAJOR(v->abi_version),
+			SOF_ABI_VERSION_MINOR(v->abi_version),
+			SOF_ABI_VERSION_PATCH(v->abi_version));
+		return -EINVAL;
+	}
+
+	sstream = crtd->private_data;
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+
+	if (!spcm)
+		return -EINVAL;
+
+	ext_data_size = sizeof(params->codec);
+
+	if (sizeof(*pcm) + ext_data_size > sdev->ipc->max_payload_size)
+		return -EINVAL;
+
+	/*
+	 * Make sure that the DSP is booted up, which might not be the
+	 * case if the on-demand DSP boot is used
+	 */
+	ret = snd_sof_boot_dsp_firmware(sdev);
+	if (ret)
+		return ret;
+
+	pcm = kzalloc(sizeof(*pcm) + ext_data_size, GFP_KERNEL);
+	if (!pcm)
+		return -ENOMEM;
+
+	cstream->dma_buffer.dev.type = SNDRV_DMA_TYPE_DEV_SG;
+	cstream->dma_buffer.dev.dev = sdev->dev;
+	ret = snd_compr_malloc_pages(cstream, crtd->buffer_size);
+	if (ret < 0)
+		goto out;
+
+	ret = create_page_table(component, cstream, crtd->dma_area, crtd->dma_bytes);
+	if (ret < 0)
+		goto out;
+
+	pcm->params.buffer.pages = PFN_UP(crtd->dma_bytes);
+	pcm->hdr.size = sizeof(*pcm) + ext_data_size;
+	pcm->hdr.cmd = SOF_IPC_GLB_STREAM_MSG | SOF_IPC_STREAM_PCM_PARAMS;
+
+	pcm->comp_id = spcm->stream[cstream->direction].comp_id;
+	pcm->params.hdr.size = sizeof(pcm->params) + ext_data_size;
+	pcm->params.buffer.phy_addr = spcm->stream[cstream->direction].page_table.addr;
+	pcm->params.buffer.size = crtd->dma_bytes;
+	pcm->params.direction = cstream->direction;
+	pcm->params.channels = params->codec.ch_out;
+	pcm->params.rate = params->codec.sample_rate;
+	pcm->params.buffer_fmt = SOF_IPC_BUFFER_INTERLEAVED;
+	pcm->params.frame_fmt = SOF_IPC_FRAME_S32_LE;
+	pcm->params.sample_container_bytes =
+		snd_pcm_format_physical_width(SNDRV_PCM_FORMAT_S32) >> 3;
+	pcm->params.host_period_bytes = params->buffer.fragment_size;
+	pcm->params.ext_data_length = ext_data_size;
+
+	memcpy((u8 *)pcm->params.ext_data, &params->codec, ext_data_size);
+
+	ret = sof_ipc_tx_message(sdev->ipc, pcm, sizeof(*pcm) + ext_data_size,
+				 &ipc_params_reply, sizeof(ipc_params_reply));
+	if (ret < 0) {
+		dev_err(component->dev, "error ipc failed\n");
+		goto out;
+	}
+
+	ret = snd_sof_set_stream_data_offset(sdev, &spcm->stream[cstream->direction],
+					     ipc_params_reply.posn_offset);
+	if (ret < 0) {
+		dev_err(component->dev, "Invalid stream data offset for Compr %u\n",
+			le32_to_cpu(spcm->pcm.pcm_id));
+		goto out;
+	}
+
+	sstream->sampling_rate = params->codec.sample_rate;
+	sstream->channels = params->codec.ch_out;
+	sstream->sample_container_bytes = pcm->params.sample_container_bytes;
+	sstream->codec_params = params->codec;
+
+	spcm->prepared[cstream->direction] = true;
+
+out:
+	kfree(pcm);
+
+	return ret;
+}
+
+static int sof_compr_get_params(struct snd_soc_component *component,
+				struct snd_compr_stream *cstream, struct snd_codec *params)
+{
+	struct sof_compr_stream *sstream = cstream->runtime->private_data;
+
+	*params = sstream->codec_params;
+
+	return 0;
+}
+
+static int sof_compr_trigger(struct snd_soc_component *component,
+			     struct snd_compr_stream *cstream, int cmd)
+{
+	struct snd_sof_dev *sdev = snd_soc_component_get_drvdata(component);
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct sof_ipc_stream stream;
+	struct snd_sof_pcm *spcm;
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm)
+		return -EINVAL;
+
+	stream.hdr.size = sizeof(stream);
+	stream.hdr.cmd = SOF_IPC_GLB_STREAM_MSG;
+	stream.comp_id = spcm->stream[cstream->direction].comp_id;
+
+	switch (cmd) {
+	case SNDRV_PCM_TRIGGER_START:
+		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_START;
+		break;
+	case SNDRV_PCM_TRIGGER_STOP:
+		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_STOP;
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
+		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_PAUSE;
+		break;
+	case SNDRV_PCM_TRIGGER_PAUSE_RELEASE:
+		stream.hdr.cmd |= SOF_IPC_STREAM_TRIG_RELEASE;
+		break;
+	default:
+		dev_err(component->dev, "error: unhandled trigger cmd %d\n", cmd);
+		break;
+	}
+
+	return sof_ipc_tx_message_no_reply(sdev->ipc, &stream, sizeof(stream));
+}
+
+static int sof_compr_copy_playback(struct snd_compr_runtime *rtd,
+				   char __user *buf, size_t count)
+{
+	void *ptr;
+	unsigned int offset, n;
+	int ret;
+
+	div_u64_rem(rtd->total_bytes_available, rtd->buffer_size, &offset);
+	ptr = rtd->dma_area + offset;
+	n = rtd->buffer_size - offset;
+
+	if (count < n) {
+		ret = copy_from_user(ptr, buf, count);
+	} else {
+		ret = copy_from_user(ptr, buf, n);
+		ret += copy_from_user(rtd->dma_area, buf + n, count - n);
+	}
+
+	return count - ret;
+}
+
+static int sof_compr_copy_capture(struct snd_compr_runtime *rtd,
+				  char __user *buf, size_t count)
+{
+	void *ptr;
+	unsigned int offset, n;
+	int ret;
+
+	div_u64_rem(rtd->total_bytes_transferred, rtd->buffer_size, &offset);
+	ptr = rtd->dma_area + offset;
+	n = rtd->buffer_size - offset;
+
+	if (count < n) {
+		ret = copy_to_user(buf, ptr, count);
+	} else {
+		ret = copy_to_user(buf, ptr, n);
+		ret += copy_to_user(buf + n, rtd->dma_area, count - n);
+	}
+
+	return count - ret;
+}
+
+static int sof_compr_copy(struct snd_soc_component *component,
+			  struct snd_compr_stream *cstream,
+			  char __user *buf, size_t count)
+{
+	struct snd_compr_runtime *rtd = cstream->runtime;
+
+	if (count > rtd->buffer_size)
+		count = rtd->buffer_size;
+
+	if (cstream->direction == SND_COMPRESS_PLAYBACK)
+		return sof_compr_copy_playback(rtd, buf, count);
+	else
+		return sof_compr_copy_capture(rtd, buf, count);
+}
+
+static int sof_compr_pointer(struct snd_soc_component *component,
+			     struct snd_compr_stream *cstream,
+			     struct snd_compr_tstamp64 *tstamp)
+{
+	struct snd_sof_pcm *spcm;
+	struct snd_soc_pcm_runtime *rtd = cstream->private_data;
+	struct sof_compr_stream *sstream = cstream->runtime->private_data;
+
+	spcm = snd_sof_find_spcm_dai(component, rtd);
+	if (!spcm)
+		return -EINVAL;
+
+	if (!sstream->channels || !sstream->sample_container_bytes)
+		return -EBUSY;
+
+	tstamp->sampling_rate = sstream->sampling_rate;
+	tstamp->copied_total = sstream->copied_total;
+	tstamp->pcm_io_frames = div_u64(spcm->stream[cstream->direction].posn.dai_posn,
+					sstream->channels * sstream->sample_container_bytes);
+
+	return 0;
+}
+
+struct snd_compress_ops sof_compressed_ops = {
+	.open		= sof_compr_open,
+	.free		= sof_compr_free,
+	.set_params	= sof_compr_set_params,
+	.get_params	= sof_compr_get_params,
+	.trigger	= sof_compr_trigger,
+	.pointer	= sof_compr_pointer,
+	.copy		= sof_compr_copy,
+};
+EXPORT_SYMBOL(sof_compressed_ops);