sound/soc/sof/intel/icl.c

   1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)
   2 //
   3 // Copyright(c) 2020 Intel Corporation
   4 //
   5 // Author: Fred Oh <fred.oh@linux.intel.com>
   6 //
   7
   8 /*
   9  * Hardware interface for audio DSP on IceLake.
  10  */
  11
  12 #include <linux/kernel.h>
  13 #include <linux/kconfig.h>
  14 #include <linux/export.h>
  15 #include <linux/bits.h>
  16 #include "../ipc4-priv.h"
  17 #include "../ops.h"
  18 #include "hda.h"
  19 #include "hda-ipc.h"
  20 #include "../sof-audio.h"
  21
  22 #define ICL_DSP_HPRO_CORE_ID 3
  23
  24 static const struct snd_sof_debugfs_map icl_dsp_debugfs[] = {
  25         {"hda", HDA_DSP_HDA_BAR, 0, 0x4000, SOF_DEBUGFS_ACCESS_ALWAYS},
  26         {"pp", HDA_DSP_PP_BAR,  0, 0x1000, SOF_DEBUGFS_ACCESS_ALWAYS},
  27         {"dsp", HDA_DSP_BAR,  0, 0x10000, SOF_DEBUGFS_ACCESS_ALWAYS},
  28 };
  29
  30 static int icl_dsp_core_stall(struct snd_sof_dev *sdev, unsigned int core_mask)
  31 {
  32         struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
  33         const struct sof_intel_dsp_desc *chip = hda->desc;
  34
  35         /* make sure core_mask in host managed cores */
  36         core_mask &= chip->host_managed_cores_mask;
  37         if (!core_mask) {
  38                 dev_err(sdev->dev, "error: core_mask is not in host managed cores\n");
  39                 return -EINVAL;
  40         }
  41
  42         /* stall core */
  43         snd_sof_dsp_update_bits_unlocked(sdev, HDA_DSP_BAR, HDA_DSP_REG_ADSPCS,
  44                                          HDA_DSP_ADSPCS_CSTALL_MASK(core_mask),
  45                                          HDA_DSP_ADSPCS_CSTALL_MASK(core_mask));
  46
  47         return 0;
  48 }
  49
  50 /*
  51  * post fw run operation for ICL.
  52  * Core 3 will be powered up and in stall when HPRO is enabled
  53  */
  54 static int icl_dsp_post_fw_run(struct snd_sof_dev *sdev)
  55 {
  56         struct sof_intel_hda_dev *hda = sdev->pdata->hw_pdata;
  57         int ret;
  58
  59         if (sdev->first_boot) {
  60                 struct sof_intel_hda_dev *hdev = sdev->pdata->hw_pdata;
  61
  62                 ret = hda_sdw_startup(sdev);
  63                 if (ret < 0) {
  64                         dev_err(sdev->dev, "error: could not startup SoundWire links\n");
  65                         return ret;
  66                 }
  67
  68                 /* Check if IMR boot is usable */
  69                 if (!sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT) &&
  70                     sdev->fw_ready.flags & SOF_IPC_INFO_D3_PERSISTENT)
  71                         hdev->imrboot_supported = true;
  72         }
  73
  74         hda_sdw_int_enable(sdev, true);
  75
  76         /*
  77          * The recommended HW programming sequence for ICL is to
  78          * power up core 3 and keep it in stall if HPRO is enabled.
  79          */
  80         if (!hda->clk_config_lpro) {
  81                 ret = hda_dsp_enable_core(sdev, BIT(ICL_DSP_HPRO_CORE_ID));
  82                 if (ret < 0) {
  83                         dev_err(sdev->dev, "error: dsp core power up failed on core %d\n",
  84                                 ICL_DSP_HPRO_CORE_ID);
  85                         return ret;
  86                 }
  87
  88                 sdev->enabled_cores_mask |= BIT(ICL_DSP_HPRO_CORE_ID);
  89                 sdev->dsp_core_ref_count[ICL_DSP_HPRO_CORE_ID]++;
  90
  91                 snd_sof_dsp_stall(sdev, BIT(ICL_DSP_HPRO_CORE_ID));
  92         }
  93
  94         /* re-enable clock gating and power gating */
  95         return hda_dsp_ctrl_clock_power_gating(sdev, true);
  96 }
  97
  98 /* Icelake ops */
  99 struct snd_sof_dsp_ops sof_icl_ops;
 100
 101 int sof_icl_ops_init(struct snd_sof_dev *sdev)
 102 {
 103         /* common defaults */
 104         memcpy(&sof_icl_ops, &sof_hda_common_ops, sizeof(struct snd_sof_dsp_ops));
 105
 106         /* probe/remove/shutdown */
 107         sof_icl_ops.shutdown    = hda_dsp_shutdown;
 108
 109         if (sdev->pdata->ipc_type == SOF_IPC_TYPE_3) {
 110                 /* doorbell */
 111                 sof_icl_ops.irq_thread  = cnl_ipc_irq_thread;
 112
 113                 /* ipc */
 114                 sof_icl_ops.send_msg    = cnl_ipc_send_msg;
 115
 116                 /* debug */
 117                 sof_icl_ops.ipc_dump    = cnl_ipc_dump;
 118
 119                 sof_icl_ops.set_power_state = hda_dsp_set_power_state_ipc3;
 120         }
 121
 122         if (sdev->pdata->ipc_type == SOF_IPC_TYPE_4) {
 123                 struct sof_ipc4_fw_data *ipc4_data;
 124
 125                 sdev->private = kzalloc(sizeof(*ipc4_data), GFP_KERNEL);
 126                 if (!sdev->private)
 127                         return -ENOMEM;
 128
 129                 ipc4_data = sdev->private;
 130                 ipc4_data->manifest_fw_hdr_offset = SOF_MAN4_FW_HDR_OFFSET;
 131
 132                 ipc4_data->mtrace_type = SOF_IPC4_MTRACE_INTEL_CAVS_2;
 133
 134                 /* External library loading support */
 135                 ipc4_data->load_library = hda_dsp_ipc4_load_library;
 136
 137                 /* doorbell */
 138                 sof_icl_ops.irq_thread  = cnl_ipc4_irq_thread;
 139
 140                 /* ipc */
 141                 sof_icl_ops.send_msg    = cnl_ipc4_send_msg;
 142
 143                 /* debug */
 144                 sof_icl_ops.ipc_dump    = cnl_ipc4_dump;
 145
 146                 sof_icl_ops.set_power_state = hda_dsp_set_power_state_ipc4;
 147         }
 148
 149         /* debug */
 150         sof_icl_ops.debug_map   = icl_dsp_debugfs;
 151         sof_icl_ops.debug_map_count     = ARRAY_SIZE(icl_dsp_debugfs);
 152
 153         /* pre/post fw run */
 154         sof_icl_ops.post_fw_run = icl_dsp_post_fw_run;
 155
 156         /* firmware run */
 157         sof_icl_ops.run = hda_dsp_cl_boot_firmware_iccmax;
 158         sof_icl_ops.stall = icl_dsp_core_stall;
 159
 160         /* dsp core get/put */
 161         sof_icl_ops.core_get = hda_dsp_core_get;
 162
 163         /* set DAI driver ops */
 164         hda_set_dai_drv_ops(sdev, &sof_icl_ops);
 165
 166         return 0;
 167 };
 168
 169 const struct sof_intel_dsp_desc icl_chip_info = {
 170         /* Icelake */
 171         .cores_num = 4,
 172         .init_core_mask = 1,
 173         .host_managed_cores_mask = GENMASK(3, 0),
 174         .ipc_req = CNL_DSP_REG_HIPCIDR,
 175         .ipc_req_mask = CNL_DSP_REG_HIPCIDR_BUSY,
 176         .ipc_ack = CNL_DSP_REG_HIPCIDA,
 177         .ipc_ack_mask = CNL_DSP_REG_HIPCIDA_DONE,
 178         .ipc_ctl = CNL_DSP_REG_HIPCCTL,
 179         .rom_status_reg = HDA_DSP_SRAM_REG_ROM_STATUS,
 180         .rom_init_timeout       = 300,
 181         .ssp_count = ICL_SSP_COUNT,
 182         .ssp_base_offset = CNL_SSP_BASE_OFFSET,
 183         .sdw_shim_base = SDW_SHIM_BASE,
 184         .sdw_alh_base = SDW_ALH_BASE,
 185         .d0i3_offset = SOF_HDA_VS_D0I3C,
 186         .read_sdw_lcount =  hda_sdw_check_lcount_common,
 187         .enable_sdw_irq = hda_common_enable_sdw_irq,
 188         .check_sdw_irq  = hda_common_check_sdw_irq,
 189         .check_sdw_wakeen_irq = hda_sdw_check_wakeen_irq_common,
 190         .sdw_process_wakeen = hda_sdw_process_wakeen_common,
 191         .check_ipc_irq  = hda_dsp_check_ipc_irq,
 192         .cl_init = cl_dsp_init,
 193         .power_down_dsp = hda_power_down_dsp,
 194         .disable_interrupts = hda_dsp_disable_interrupts,
 195         .hw_ip_version = SOF_INTEL_CAVS_2_0,
 196 };