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// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
//
// Copyright(c) 2020 Intel Corporation. All rights reserved.
//
// Author: Fred Oh <fred.oh@linux.intel.com>
//
/*
* Hardware interface for audio DSP on IceLake.
*/
#include <linux/kernel.h>
#include <linux/kconfig.h>
#include <linux/export.h>
#include <linux/bits.h>
#include "../ops.h"
#include "hda.h"
#include "hda-ipc.h"
#include "../sof-audio.h"
#define ICL_DSP_HPRO_CORE_ID 3
static const struct snd_sof_debugfs_map icl_dsp_debugfs[] = {
{"hda", HDA_DSP_HDA_BAR, 0, 0x4000, SOF_DEBUGFS_ACCESS_ALWAYS},
{"pp", HDA_DSP_PP_BAR, 0, 0x1000, SOF_DEBUGFS_ACCESS_ALWAYS},
{"dsp", HDA_DSP_BAR, 0, 0x10000, SOF_DEBUGFS_ACCESS_ALWAYS},
};
static int icl_dsp_core_stall(struct snd_sof_dev *sdev, unsigned int core_mask)
{
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
const struct sof_intel_dsp_desc *chip = hda->desc;
/* make sure core_mask in host managed cores */
core_mask &= chip->host_managed_cores_mask;
if (!core_mask) {
dev_err(sdev->dev, "error: core_mask is not in host managed cores\n");
return -EINVAL;
}
/* stall core */
snd_sof_dsp_update_bits_unlocked(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPCS,
HDA_DSP_ADSPCS_CSTALL_MASK(core_mask),
HDA_DSP_ADSPCS_CSTALL_MASK(core_mask));
return 0;
}
/*
* post fw run operation for ICL.
* Core 3 will be powered up and in stall when HPRO is enabled
*/
static int icl_dsp_post_fw_run(struct snd_sof_dev *sdev)
{
struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
int ret;
if (sdev->first_boot) {
struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;
ret = hda_sdw_startup(sdev);
if (ret < 0) {
dev_err(sdev->dev, "error: could not startup SoundWire links\n");
return ret;
}
/* Check if IMR boot is usable */
if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT) &&
sdev->fw_ready.flags & SOF_IPC_INFO_D3_PERSISTENT)
hdev->imrboot_supported = true;
}
hda_sdw_int_enable(sdev, true);
/*
* The recommended HW programming sequence for ICL is to
* power up core 3 and keep it in stall if HPRO is enabled.
*/
if (!hda->clk_config_lpro) {
ret = hda_dsp_enable_core(sdev, BIT(ICL_DSP_HPRO_CORE_ID));
if (ret < 0) {
dev_err(sdev->dev, "error: dsp core power up failed on core %d\n",
ICL_DSP_HPRO_CORE_ID);
return ret;
}
sdev->enabled_cores_mask |= BIT(ICL_DSP_HPRO_CORE_ID);
sdev->dsp_core_ref_count[ICL_DSP_HPRO_CORE_ID]++;
snd_sof_dsp_stall(sdev, BIT(ICL_DSP_HPRO_CORE_ID));
}
/* re-enable clock gating and power gating */
return hda_dsp_ctrl_clock_power_gating(sdev, true);
}
/* Icelake ops */
struct snd_sof_dsp_ops sof_icl_ops;
EXPORT_SYMBOL_NS(sof_icl_ops, SND_SOC_SOF_INTEL_HDA_COMMON);
int sof_icl_ops_init(struct snd_sof_dev *sdev)
{
/* common defaults */
memcpy(&sof_icl_ops, &sof_hda_common_ops, sizeof(struct snd_sof_dsp_ops));
/* probe/remove/shutdown */
sof_icl_ops.shutdown = hda_dsp_shutdown;
/* doorbell */
sof_icl_ops.irq_thread = cnl_ipc_irq_thread;
/* ipc */
sof_icl_ops.send_msg = cnl_ipc_send_msg;
/* debug */
sof_icl_ops.debug_map = icl_dsp_debugfs;
sof_icl_ops.debug_map_count = ARRAY_SIZE(icl_dsp_debugfs);
sof_icl_ops.ipc_dump = cnl_ipc_dump;
/* pre/post fw run */
sof_icl_ops.post_fw_run = icl_dsp_post_fw_run;
/* firmware run */
sof_icl_ops.run = hda_dsp_cl_boot_firmware_iccmax;
sof_icl_ops.stall = icl_dsp_core_stall;
/* dsp core get/put */
sof_icl_ops.core_get = hda_dsp_core_get;
/* set DAI driver ops */
hda_set_dai_drv_ops(sdev, &sof_icl_ops);
return 0;
};
EXPORT_SYMBOL_NS(sof_icl_ops_init, SND_SOC_SOF_INTEL_HDA_COMMON);
const struct sof_intel_dsp_desc icl_chip_info = {
/* Icelake */
.cores_num = 4,
.init_core_mask = 1,
.host_managed_cores_mask = GENMASK(3, 0),
.ipc_req = CNL_DSP_REG_HIPCIDR,
.ipc_req_mask = CNL_DSP_REG_HIPCIDR_BUSY,
.ipc_ack = CNL_DSP_REG_HIPCIDA,
.ipc_ack_mask = CNL_DSP_REG_HIPCIDA_DONE,
.ipc_ctl = CNL_DSP_REG_HIPCCTL,
.rom_status_reg = HDA_DSP_SRAM_REG_ROM_STATUS,
.rom_init_timeout = 300,
.ssp_count = ICL_SSP_COUNT,
.ssp_base_offset = CNL_SSP_BASE_OFFSET,
.sdw_shim_base = SDW_SHIM_BASE,
.sdw_alh_base = SDW_ALH_BASE,
.check_sdw_irq = hda_common_check_sdw_irq,
.check_ipc_irq = hda_dsp_check_ipc_irq,
.cl_init = cl_dsp_init,
.hw_ip_version = SOF_INTEL_CAVS_2_0,
};
EXPORT_SYMBOL_NS(icl_chip_info, SND_SOC_SOF_INTEL_HDA_COMMON);
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