linux_dsm_epyc7002/sound/soc/sof/intel/byt.c
Pierre-Louis Bossart 3d3d1fb9ce
ASoC: SOF: Intel: BYT: mask BUSY or DONE interrupts in handler
The DSP may send the same interrupt multiple times before it's handled
in the interrupt thread. Rather than masking it in the thread, mask it
in the handler directly.

This patch also removes useless checks that cannot happen, and masks
that are set don't need to be re-tested.

Suggested-by: Keyon Jie <yang.jie@linux.intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Tested-by: Enric Balletbo i Serra <enric.balletbo@collabora.com>
Reviewed-by: Ranjani Sridharan <ranjani.sridharan@linux.intel.com>
BugLink: https://github.com/thesofproject/linux/issues/1492
Link: https://lore.kernel.org/r/20200526203640.25980-8-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-05-27 14:06:58 +01:00

985 lines
24 KiB
C

// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// This file is provided under a dual BSD/GPLv2 license. When using or
// redistributing this file, you may do so under either license.
//
// Copyright(c) 2018 Intel Corporation. All rights reserved.
//
// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>
//
/*
* Hardware interface for audio DSP on Baytrail, Braswell and Cherrytrail.
*/
#include <linux/module.h>
#include <sound/sof.h>
#include <sound/sof/xtensa.h>
#include "../ops.h"
#include "shim.h"
#include "../sof-audio.h"
#include "../../intel/common/soc-intel-quirks.h"
/* DSP memories */
#define IRAM_OFFSET 0x0C0000
#define IRAM_SIZE (80 * 1024)
#define DRAM_OFFSET 0x100000
#define DRAM_SIZE (160 * 1024)
#define SHIM_OFFSET 0x140000
#define SHIM_SIZE_BYT 0x100
#define SHIM_SIZE_CHT 0x118
#define MBOX_OFFSET 0x144000
#define MBOX_SIZE 0x1000
#define EXCEPT_OFFSET 0x800
#define EXCEPT_MAX_HDR_SIZE 0x400
/* DSP peripherals */
#define DMAC0_OFFSET 0x098000
#define DMAC1_OFFSET 0x09c000
#define DMAC2_OFFSET 0x094000
#define DMAC_SIZE 0x420
#define SSP0_OFFSET 0x0a0000
#define SSP1_OFFSET 0x0a1000
#define SSP2_OFFSET 0x0a2000
#define SSP3_OFFSET 0x0a4000
#define SSP4_OFFSET 0x0a5000
#define SSP5_OFFSET 0x0a6000
#define SSP_SIZE 0x100
#define BYT_STACK_DUMP_SIZE 32
#define BYT_PCI_BAR_SIZE 0x200000
#define BYT_PANIC_OFFSET(x) (((x) & GENMASK_ULL(47, 32)) >> 32)
/*
* Debug
*/
#define MBOX_DUMP_SIZE 0x30
/* BARs */
#define BYT_DSP_BAR 0
#define BYT_PCI_BAR 1
#define BYT_IMR_BAR 2
static const struct snd_sof_debugfs_map byt_debugfs[] = {
{"dmac0", BYT_DSP_BAR, DMAC0_OFFSET, DMAC_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"dmac1", BYT_DSP_BAR, DMAC1_OFFSET, DMAC_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp0", BYT_DSP_BAR, SSP0_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp1", BYT_DSP_BAR, SSP1_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp2", BYT_DSP_BAR, SSP2_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"iram", BYT_DSP_BAR, IRAM_OFFSET, IRAM_SIZE,
SOF_DEBUGFS_ACCESS_D0_ONLY},
{"dram", BYT_DSP_BAR, DRAM_OFFSET, DRAM_SIZE,
SOF_DEBUGFS_ACCESS_D0_ONLY},
{"shim", BYT_DSP_BAR, SHIM_OFFSET, SHIM_SIZE_BYT,
SOF_DEBUGFS_ACCESS_ALWAYS},
};
static void byt_host_done(struct snd_sof_dev *sdev);
static void byt_dsp_done(struct snd_sof_dev *sdev);
static void byt_get_reply(struct snd_sof_dev *sdev);
/*
* Debug
*/
static void byt_get_registers(struct snd_sof_dev *sdev,
struct sof_ipc_dsp_oops_xtensa *xoops,
struct sof_ipc_panic_info *panic_info,
u32 *stack, size_t stack_words)
{
u32 offset = sdev->dsp_oops_offset;
/* first read regsisters */
sof_mailbox_read(sdev, offset, xoops, sizeof(*xoops));
/* note: variable AR register array is not read */
/* then get panic info */
if (xoops->arch_hdr.totalsize > EXCEPT_MAX_HDR_SIZE) {
dev_err(sdev->dev, "invalid header size 0x%x. FW oops is bogus\n",
xoops->arch_hdr.totalsize);
return;
}
offset += xoops->arch_hdr.totalsize;
sof_mailbox_read(sdev, offset, panic_info, sizeof(*panic_info));
/* then get the stack */
offset += sizeof(*panic_info);
sof_mailbox_read(sdev, offset, stack, stack_words * sizeof(u32));
}
static void byt_dump(struct snd_sof_dev *sdev, u32 flags)
{
struct sof_ipc_dsp_oops_xtensa xoops;
struct sof_ipc_panic_info panic_info;
u32 stack[BYT_STACK_DUMP_SIZE];
u64 status, panic, imrd, imrx;
/* now try generic SOF status messages */
status = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCD);
panic = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCX);
byt_get_registers(sdev, &xoops, &panic_info, stack,
BYT_STACK_DUMP_SIZE);
snd_sof_get_status(sdev, status, panic, &xoops, &panic_info, stack,
BYT_STACK_DUMP_SIZE);
/* provide some context for firmware debug */
imrx = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IMRX);
imrd = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IMRD);
dev_err(sdev->dev,
"error: ipc host -> DSP: pending %s complete %s raw 0x%llx\n",
(panic & SHIM_IPCX_BUSY) ? "yes" : "no",
(panic & SHIM_IPCX_DONE) ? "yes" : "no", panic);
dev_err(sdev->dev,
"error: mask host: pending %s complete %s raw 0x%llx\n",
(imrx & SHIM_IMRX_BUSY) ? "yes" : "no",
(imrx & SHIM_IMRX_DONE) ? "yes" : "no", imrx);
dev_err(sdev->dev,
"error: ipc DSP -> host: pending %s complete %s raw 0x%llx\n",
(status & SHIM_IPCD_BUSY) ? "yes" : "no",
(status & SHIM_IPCD_DONE) ? "yes" : "no", status);
dev_err(sdev->dev,
"error: mask DSP: pending %s complete %s raw 0x%llx\n",
(imrd & SHIM_IMRD_BUSY) ? "yes" : "no",
(imrd & SHIM_IMRD_DONE) ? "yes" : "no", imrd);
}
/*
* IPC Doorbell IRQ handler and thread.
*/
static irqreturn_t byt_irq_handler(int irq, void *context)
{
struct snd_sof_dev *sdev = context;
u64 ipcx, ipcd;
int ret = IRQ_NONE;
ipcx = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCX);
ipcd = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCD);
if (ipcx & SHIM_BYT_IPCX_DONE) {
/* reply message from DSP, Mask Done interrupt first */
snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR,
SHIM_IMRX,
SHIM_IMRX_DONE,
SHIM_IMRX_DONE);
ret = IRQ_WAKE_THREAD;
}
if (ipcd & SHIM_BYT_IPCD_BUSY) {
/* new message from DSP, Mask Busy interrupt first */
snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR,
SHIM_IMRX,
SHIM_IMRX_BUSY,
SHIM_IMRX_BUSY);
ret = IRQ_WAKE_THREAD;
}
return ret;
}
static irqreturn_t byt_irq_thread(int irq, void *context)
{
struct snd_sof_dev *sdev = context;
u64 ipcx, ipcd;
ipcx = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCX);
ipcd = snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_IPCD);
/* reply message from DSP */
if (ipcx & SHIM_BYT_IPCX_DONE) {
spin_lock_irq(&sdev->ipc_lock);
/*
* handle immediate reply from DSP core. If the msg is
* found, set done bit in cmd_done which is called at the
* end of message processing function, else set it here
* because the done bit can't be set in cmd_done function
* which is triggered by msg
*/
byt_get_reply(sdev);
snd_sof_ipc_reply(sdev, ipcx);
byt_dsp_done(sdev);
spin_unlock_irq(&sdev->ipc_lock);
}
/* new message from DSP */
if (ipcd & SHIM_BYT_IPCD_BUSY) {
/* Handle messages from DSP Core */
if ((ipcd & SOF_IPC_PANIC_MAGIC_MASK) == SOF_IPC_PANIC_MAGIC) {
snd_sof_dsp_panic(sdev, BYT_PANIC_OFFSET(ipcd) +
MBOX_OFFSET);
} else {
snd_sof_ipc_msgs_rx(sdev);
}
byt_host_done(sdev);
}
return IRQ_HANDLED;
}
static int byt_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg)
{
/* send the message */
sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data,
msg->msg_size);
snd_sof_dsp_write64(sdev, BYT_DSP_BAR, SHIM_IPCX, SHIM_BYT_IPCX_BUSY);
return 0;
}
static void byt_get_reply(struct snd_sof_dev *sdev)
{
struct snd_sof_ipc_msg *msg = sdev->msg;
struct sof_ipc_reply reply;
int ret = 0;
/*
* Sometimes, there is unexpected reply ipc arriving. The reply
* ipc belongs to none of the ipcs sent from driver.
* In this case, the driver must ignore the ipc.
*/
if (!msg) {
dev_warn(sdev->dev, "unexpected ipc interrupt raised!\n");
return;
}
/* get reply */
sof_mailbox_read(sdev, sdev->host_box.offset, &reply, sizeof(reply));
if (reply.error < 0) {
memcpy(msg->reply_data, &reply, sizeof(reply));
ret = reply.error;
} else {
/* reply correct size ? */
if (reply.hdr.size != msg->reply_size) {
dev_err(sdev->dev, "error: reply expected %zu got %u bytes\n",
msg->reply_size, reply.hdr.size);
ret = -EINVAL;
}
/* read the message */
if (msg->reply_size > 0)
sof_mailbox_read(sdev, sdev->host_box.offset,
msg->reply_data, msg->reply_size);
}
msg->reply_error = ret;
}
static int byt_get_mailbox_offset(struct snd_sof_dev *sdev)
{
return MBOX_OFFSET;
}
static int byt_get_window_offset(struct snd_sof_dev *sdev, u32 id)
{
return MBOX_OFFSET;
}
static void byt_host_done(struct snd_sof_dev *sdev)
{
/* clear BUSY bit and set DONE bit - accept new messages */
snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR, SHIM_IPCD,
SHIM_BYT_IPCD_BUSY |
SHIM_BYT_IPCD_DONE,
SHIM_BYT_IPCD_DONE);
/* unmask busy interrupt */
snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR, SHIM_IMRX,
SHIM_IMRX_BUSY, 0);
}
static void byt_dsp_done(struct snd_sof_dev *sdev)
{
/* clear DONE bit - tell DSP we have completed */
snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR, SHIM_IPCX,
SHIM_BYT_IPCX_DONE, 0);
/* unmask Done interrupt */
snd_sof_dsp_update_bits64_unlocked(sdev, BYT_DSP_BAR, SHIM_IMRX,
SHIM_IMRX_DONE, 0);
}
/*
* DSP control.
*/
static int byt_run(struct snd_sof_dev *sdev)
{
int tries = 10;
/* release stall and wait to unstall */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_CSR,
SHIM_BYT_CSR_STALL, 0x0);
while (tries--) {
if (!(snd_sof_dsp_read64(sdev, BYT_DSP_BAR, SHIM_CSR) &
SHIM_BYT_CSR_PWAITMODE))
break;
msleep(100);
}
if (tries < 0) {
dev_err(sdev->dev, "error: unable to run DSP firmware\n");
byt_dump(sdev, SOF_DBG_REGS | SOF_DBG_MBOX);
return -ENODEV;
}
/* return init core mask */
return 1;
}
static int byt_reset(struct snd_sof_dev *sdev)
{
/* put DSP into reset, set reset vector and stall */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_CSR,
SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL |
SHIM_BYT_CSR_STALL,
SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL |
SHIM_BYT_CSR_STALL);
usleep_range(10, 15);
/* take DSP out of reset and keep stalled for FW loading */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_CSR,
SHIM_BYT_CSR_RST, 0);
return 0;
}
static const char *fixup_tplg_name(struct snd_sof_dev *sdev,
const char *sof_tplg_filename,
const char *ssp_str)
{
const char *tplg_filename = NULL;
char *filename;
char *split_ext;
filename = devm_kstrdup(sdev->dev, sof_tplg_filename, GFP_KERNEL);
if (!filename)
return NULL;
/* this assumes a .tplg extension */
split_ext = strsep(&filename, ".");
if (split_ext) {
tplg_filename = devm_kasprintf(sdev->dev, GFP_KERNEL,
"%s-%s.tplg",
split_ext, ssp_str);
if (!tplg_filename)
return NULL;
}
return tplg_filename;
}
static void byt_machine_select(struct snd_sof_dev *sdev)
{
struct snd_sof_pdata *sof_pdata = sdev->pdata;
const struct sof_dev_desc *desc = sof_pdata->desc;
struct snd_soc_acpi_mach *mach;
struct platform_device *pdev;
const char *tplg_filename;
mach = snd_soc_acpi_find_machine(desc->machines);
if (!mach) {
dev_warn(sdev->dev, "warning: No matching ASoC machine driver found\n");
return;
}
pdev = to_platform_device(sdev->dev);
if (soc_intel_is_byt_cr(pdev)) {
dev_dbg(sdev->dev,
"BYT-CR detected, SSP0 used instead of SSP2\n");
tplg_filename = fixup_tplg_name(sdev,
mach->sof_tplg_filename,
"ssp0");
} else {
tplg_filename = mach->sof_tplg_filename;
}
if (!tplg_filename) {
dev_dbg(sdev->dev,
"error: no topology filename\n");
return;
}
sof_pdata->tplg_filename = tplg_filename;
mach->mach_params.acpi_ipc_irq_index = desc->irqindex_host_ipc;
sof_pdata->machine = mach;
}
static void byt_set_mach_params(const struct snd_soc_acpi_mach *mach,
struct device *dev)
{
struct snd_soc_acpi_mach_params *mach_params;
mach_params = (struct snd_soc_acpi_mach_params *)&mach->mach_params;
mach_params->platform = dev_name(dev);
}
static void byt_reset_dsp_disable_int(struct snd_sof_dev *sdev)
{
/* Disable Interrupt from both sides */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRX, 0x3, 0x3);
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRD, 0x3, 0x3);
/* Put DSP into reset, set reset vector */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_CSR,
SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL,
SHIM_BYT_CSR_RST | SHIM_BYT_CSR_VECTOR_SEL);
}
static int byt_suspend(struct snd_sof_dev *sdev, u32 target_state)
{
byt_reset_dsp_disable_int(sdev);
return 0;
}
static int byt_resume(struct snd_sof_dev *sdev)
{
/* Enable Interrupt from both sides */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRX, 0x3, 0x0);
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRD, 0x3, 0x0);
return 0;
}
static int byt_remove(struct snd_sof_dev *sdev)
{
byt_reset_dsp_disable_int(sdev);
return 0;
}
/* Baytrail DAIs */
static struct snd_soc_dai_driver byt_dai[] = {
{
.name = "ssp0-port",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "ssp1-port",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "ssp2-port",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
}
},
{
.name = "ssp3-port",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "ssp4-port",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
{
.name = "ssp5-port",
.playback = {
.channels_min = 1,
.channels_max = 8,
},
.capture = {
.channels_min = 1,
.channels_max = 8,
},
},
};
/*
* Probe and remove.
*/
#if IS_ENABLED(CONFIG_SND_SOC_SOF_MERRIFIELD)
static int tangier_pci_probe(struct snd_sof_dev *sdev)
{
struct snd_sof_pdata *pdata = sdev->pdata;
const struct sof_dev_desc *desc = pdata->desc;
struct pci_dev *pci = to_pci_dev(sdev->dev);
u32 base, size;
int ret;
/* DSP DMA can only access low 31 bits of host memory */
ret = dma_coerce_mask_and_coherent(&pci->dev, DMA_BIT_MASK(31));
if (ret < 0) {
dev_err(sdev->dev, "error: failed to set DMA mask %d\n", ret);
return ret;
}
/* LPE base */
base = pci_resource_start(pci, desc->resindex_lpe_base) - IRAM_OFFSET;
size = BYT_PCI_BAR_SIZE;
dev_dbg(sdev->dev, "LPE PHY base at 0x%x size 0x%x", base, size);
sdev->bar[BYT_DSP_BAR] = devm_ioremap(sdev->dev, base, size);
if (!sdev->bar[BYT_DSP_BAR]) {
dev_err(sdev->dev, "error: failed to ioremap LPE base 0x%x size 0x%x\n",
base, size);
return -ENODEV;
}
dev_dbg(sdev->dev, "LPE VADDR %p\n", sdev->bar[BYT_DSP_BAR]);
/* IMR base - optional */
if (desc->resindex_imr_base == -1)
goto irq;
base = pci_resource_start(pci, desc->resindex_imr_base);
size = pci_resource_len(pci, desc->resindex_imr_base);
/* some BIOSes don't map IMR */
if (base == 0x55aa55aa || base == 0x0) {
dev_info(sdev->dev, "IMR not set by BIOS. Ignoring\n");
goto irq;
}
dev_dbg(sdev->dev, "IMR base at 0x%x size 0x%x", base, size);
sdev->bar[BYT_IMR_BAR] = devm_ioremap(sdev->dev, base, size);
if (!sdev->bar[BYT_IMR_BAR]) {
dev_err(sdev->dev, "error: failed to ioremap IMR base 0x%x size 0x%x\n",
base, size);
return -ENODEV;
}
dev_dbg(sdev->dev, "IMR VADDR %p\n", sdev->bar[BYT_IMR_BAR]);
irq:
/* register our IRQ */
sdev->ipc_irq = pci->irq;
dev_dbg(sdev->dev, "using IRQ %d\n", sdev->ipc_irq);
ret = devm_request_threaded_irq(sdev->dev, sdev->ipc_irq,
byt_irq_handler, byt_irq_thread,
0, "AudioDSP", sdev);
if (ret < 0) {
dev_err(sdev->dev, "error: failed to register IRQ %d\n",
sdev->ipc_irq);
return ret;
}
/* enable Interrupt from both sides */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRX, 0x3, 0x0);
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRD, 0x3, 0x0);
/* set default mailbox offset for FW ready message */
sdev->dsp_box.offset = MBOX_OFFSET;
return ret;
}
const struct snd_sof_dsp_ops sof_tng_ops = {
/* device init */
.probe = tangier_pci_probe,
/* DSP core boot / reset */
.run = byt_run,
.reset = byt_reset,
/* Register IO */
.write = sof_io_write,
.read = sof_io_read,
.write64 = sof_io_write64,
.read64 = sof_io_read64,
/* Block IO */
.block_read = sof_block_read,
.block_write = sof_block_write,
/* doorbell */
.irq_handler = byt_irq_handler,
.irq_thread = byt_irq_thread,
/* ipc */
.send_msg = byt_send_msg,
.fw_ready = sof_fw_ready,
.get_mailbox_offset = byt_get_mailbox_offset,
.get_window_offset = byt_get_window_offset,
.ipc_msg_data = intel_ipc_msg_data,
.ipc_pcm_params = intel_ipc_pcm_params,
/* machine driver */
.machine_select = byt_machine_select,
.machine_register = sof_machine_register,
.machine_unregister = sof_machine_unregister,
.set_mach_params = byt_set_mach_params,
/* debug */
.debug_map = byt_debugfs,
.debug_map_count = ARRAY_SIZE(byt_debugfs),
.dbg_dump = byt_dump,
/* stream callbacks */
.pcm_open = intel_pcm_open,
.pcm_close = intel_pcm_close,
/* module loading */
.load_module = snd_sof_parse_module_memcpy,
/*Firmware loading */
.load_firmware = snd_sof_load_firmware_memcpy,
/* DAI drivers */
.drv = byt_dai,
.num_drv = 3, /* we have only 3 SSPs on byt*/
/* ALSA HW info flags */
.hw_info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_BATCH,
.arch_ops = &sof_xtensa_arch_ops,
};
EXPORT_SYMBOL_NS(sof_tng_ops, SND_SOC_SOF_MERRIFIELD);
const struct sof_intel_dsp_desc tng_chip_info = {
.cores_num = 1,
.cores_mask = 1,
};
EXPORT_SYMBOL_NS(tng_chip_info, SND_SOC_SOF_MERRIFIELD);
#endif /* CONFIG_SND_SOC_SOF_MERRIFIELD */
#if IS_ENABLED(CONFIG_SND_SOC_SOF_BAYTRAIL)
static const struct snd_sof_debugfs_map cht_debugfs[] = {
{"dmac0", BYT_DSP_BAR, DMAC0_OFFSET, DMAC_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"dmac1", BYT_DSP_BAR, DMAC1_OFFSET, DMAC_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"dmac2", BYT_DSP_BAR, DMAC2_OFFSET, DMAC_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp0", BYT_DSP_BAR, SSP0_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp1", BYT_DSP_BAR, SSP1_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp2", BYT_DSP_BAR, SSP2_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp3", BYT_DSP_BAR, SSP3_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp4", BYT_DSP_BAR, SSP4_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"ssp5", BYT_DSP_BAR, SSP5_OFFSET, SSP_SIZE,
SOF_DEBUGFS_ACCESS_ALWAYS},
{"iram", BYT_DSP_BAR, IRAM_OFFSET, IRAM_SIZE,
SOF_DEBUGFS_ACCESS_D0_ONLY},
{"dram", BYT_DSP_BAR, DRAM_OFFSET, DRAM_SIZE,
SOF_DEBUGFS_ACCESS_D0_ONLY},
{"shim", BYT_DSP_BAR, SHIM_OFFSET, SHIM_SIZE_CHT,
SOF_DEBUGFS_ACCESS_ALWAYS},
};
static int byt_acpi_probe(struct snd_sof_dev *sdev)
{
struct snd_sof_pdata *pdata = sdev->pdata;
const struct sof_dev_desc *desc = pdata->desc;
struct platform_device *pdev =
container_of(sdev->dev, struct platform_device, dev);
struct resource *mmio;
u32 base, size;
int ret;
/* DSP DMA can only access low 31 bits of host memory */
ret = dma_coerce_mask_and_coherent(sdev->dev, DMA_BIT_MASK(31));
if (ret < 0) {
dev_err(sdev->dev, "error: failed to set DMA mask %d\n", ret);
return ret;
}
/* LPE base */
mmio = platform_get_resource(pdev, IORESOURCE_MEM,
desc->resindex_lpe_base);
if (mmio) {
base = mmio->start;
size = resource_size(mmio);
} else {
dev_err(sdev->dev, "error: failed to get LPE base at idx %d\n",
desc->resindex_lpe_base);
return -EINVAL;
}
dev_dbg(sdev->dev, "LPE PHY base at 0x%x size 0x%x", base, size);
sdev->bar[BYT_DSP_BAR] = devm_ioremap(sdev->dev, base, size);
if (!sdev->bar[BYT_DSP_BAR]) {
dev_err(sdev->dev, "error: failed to ioremap LPE base 0x%x size 0x%x\n",
base, size);
return -ENODEV;
}
dev_dbg(sdev->dev, "LPE VADDR %p\n", sdev->bar[BYT_DSP_BAR]);
/* TODO: add offsets */
sdev->mmio_bar = BYT_DSP_BAR;
sdev->mailbox_bar = BYT_DSP_BAR;
/* IMR base - optional */
if (desc->resindex_imr_base == -1)
goto irq;
mmio = platform_get_resource(pdev, IORESOURCE_MEM,
desc->resindex_imr_base);
if (mmio) {
base = mmio->start;
size = resource_size(mmio);
} else {
dev_err(sdev->dev, "error: failed to get IMR base at idx %d\n",
desc->resindex_imr_base);
return -ENODEV;
}
/* some BIOSes don't map IMR */
if (base == 0x55aa55aa || base == 0x0) {
dev_info(sdev->dev, "IMR not set by BIOS. Ignoring\n");
goto irq;
}
dev_dbg(sdev->dev, "IMR base at 0x%x size 0x%x", base, size);
sdev->bar[BYT_IMR_BAR] = devm_ioremap(sdev->dev, base, size);
if (!sdev->bar[BYT_IMR_BAR]) {
dev_err(sdev->dev, "error: failed to ioremap IMR base 0x%x size 0x%x\n",
base, size);
return -ENODEV;
}
dev_dbg(sdev->dev, "IMR VADDR %p\n", sdev->bar[BYT_IMR_BAR]);
irq:
/* register our IRQ */
sdev->ipc_irq = platform_get_irq(pdev, desc->irqindex_host_ipc);
if (sdev->ipc_irq < 0)
return sdev->ipc_irq;
dev_dbg(sdev->dev, "using IRQ %d\n", sdev->ipc_irq);
ret = devm_request_threaded_irq(sdev->dev, sdev->ipc_irq,
byt_irq_handler, byt_irq_thread,
IRQF_SHARED, "AudioDSP", sdev);
if (ret < 0) {
dev_err(sdev->dev, "error: failed to register IRQ %d\n",
sdev->ipc_irq);
return ret;
}
/* enable Interrupt from both sides */
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRX, 0x3, 0x0);
snd_sof_dsp_update_bits64(sdev, BYT_DSP_BAR, SHIM_IMRD, 0x3, 0x0);
/* set default mailbox offset for FW ready message */
sdev->dsp_box.offset = MBOX_OFFSET;
return ret;
}
/* baytrail ops */
const struct snd_sof_dsp_ops sof_byt_ops = {
/* device init */
.probe = byt_acpi_probe,
.remove = byt_remove,
/* DSP core boot / reset */
.run = byt_run,
.reset = byt_reset,
/* Register IO */
.write = sof_io_write,
.read = sof_io_read,
.write64 = sof_io_write64,
.read64 = sof_io_read64,
/* Block IO */
.block_read = sof_block_read,
.block_write = sof_block_write,
/* doorbell */
.irq_handler = byt_irq_handler,
.irq_thread = byt_irq_thread,
/* ipc */
.send_msg = byt_send_msg,
.fw_ready = sof_fw_ready,
.get_mailbox_offset = byt_get_mailbox_offset,
.get_window_offset = byt_get_window_offset,
.ipc_msg_data = intel_ipc_msg_data,
.ipc_pcm_params = intel_ipc_pcm_params,
/* machine driver */
.machine_select = byt_machine_select,
.machine_register = sof_machine_register,
.machine_unregister = sof_machine_unregister,
.set_mach_params = byt_set_mach_params,
/* debug */
.debug_map = byt_debugfs,
.debug_map_count = ARRAY_SIZE(byt_debugfs),
.dbg_dump = byt_dump,
/* stream callbacks */
.pcm_open = intel_pcm_open,
.pcm_close = intel_pcm_close,
/* module loading */
.load_module = snd_sof_parse_module_memcpy,
/*Firmware loading */
.load_firmware = snd_sof_load_firmware_memcpy,
/* PM */
.suspend = byt_suspend,
.resume = byt_resume,
/* DAI drivers */
.drv = byt_dai,
.num_drv = 3, /* we have only 3 SSPs on byt*/
/* ALSA HW info flags */
.hw_info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_BATCH,
.arch_ops = &sof_xtensa_arch_ops,
};
EXPORT_SYMBOL_NS(sof_byt_ops, SND_SOC_SOF_BAYTRAIL);
const struct sof_intel_dsp_desc byt_chip_info = {
.cores_num = 1,
.cores_mask = 1,
};
EXPORT_SYMBOL_NS(byt_chip_info, SND_SOC_SOF_BAYTRAIL);
/* cherrytrail and braswell ops */
const struct snd_sof_dsp_ops sof_cht_ops = {
/* device init */
.probe = byt_acpi_probe,
.remove = byt_remove,
/* DSP core boot / reset */
.run = byt_run,
.reset = byt_reset,
/* Register IO */
.write = sof_io_write,
.read = sof_io_read,
.write64 = sof_io_write64,
.read64 = sof_io_read64,
/* Block IO */
.block_read = sof_block_read,
.block_write = sof_block_write,
/* doorbell */
.irq_handler = byt_irq_handler,
.irq_thread = byt_irq_thread,
/* ipc */
.send_msg = byt_send_msg,
.fw_ready = sof_fw_ready,
.get_mailbox_offset = byt_get_mailbox_offset,
.get_window_offset = byt_get_window_offset,
.ipc_msg_data = intel_ipc_msg_data,
.ipc_pcm_params = intel_ipc_pcm_params,
/* machine driver */
.machine_select = byt_machine_select,
.machine_register = sof_machine_register,
.machine_unregister = sof_machine_unregister,
.set_mach_params = byt_set_mach_params,
/* debug */
.debug_map = cht_debugfs,
.debug_map_count = ARRAY_SIZE(cht_debugfs),
.dbg_dump = byt_dump,
/* stream callbacks */
.pcm_open = intel_pcm_open,
.pcm_close = intel_pcm_close,
/* module loading */
.load_module = snd_sof_parse_module_memcpy,
/*Firmware loading */
.load_firmware = snd_sof_load_firmware_memcpy,
/* PM */
.suspend = byt_suspend,
.resume = byt_resume,
/* DAI drivers */
.drv = byt_dai,
/* all 6 SSPs may be available for cherrytrail */
.num_drv = ARRAY_SIZE(byt_dai),
/* ALSA HW info flags */
.hw_info = SNDRV_PCM_INFO_MMAP |
SNDRV_PCM_INFO_MMAP_VALID |
SNDRV_PCM_INFO_INTERLEAVED |
SNDRV_PCM_INFO_PAUSE |
SNDRV_PCM_INFO_BATCH,
.arch_ops = &sof_xtensa_arch_ops,
};
EXPORT_SYMBOL_NS(sof_cht_ops, SND_SOC_SOF_BAYTRAIL);
const struct sof_intel_dsp_desc cht_chip_info = {
.cores_num = 1,
.cores_mask = 1,
};
EXPORT_SYMBOL_NS(cht_chip_info, SND_SOC_SOF_BAYTRAIL);
#endif /* CONFIG_SND_SOC_SOF_BAYTRAIL */
MODULE_LICENSE("Dual BSD/GPL");
MODULE_IMPORT_NS(SND_SOC_SOF_INTEL_HIFI_EP_IPC);
MODULE_IMPORT_NS(SND_SOC_SOF_XTENSA);