1 // SPDX-License-Identifier: GPL-2.0-only 2 // 3 // Copyright(c) 2021-2022 Intel Corporation 4 // 5 // Authors: Cezary Rojewski <cezary.rojewski@intel.com> 6 // Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com> 7 // 8 9 #include <linux/devcoredump.h> 10 #include <linux/slab.h> 11 #include <sound/hdaudio_ext.h> 12 #include "avs.h" 13 #include "cldma.h" 14 #include "messages.h" 15 16 void avs_skl_ipc_interrupt(struct avs_dev *adev) 17 { 18 const struct avs_spec *spec = adev->spec; 19 u32 hipc_ack, hipc_rsp; 20 21 snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset, 22 AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY, 0); 23 24 hipc_ack = snd_hdac_adsp_readl(adev, spec->hipc->ack_offset); 25 hipc_rsp = snd_hdac_adsp_readl(adev, spec->hipc->rsp_offset); 26 27 /* DSP acked host's request. */ 28 if (hipc_ack & spec->hipc->ack_done_mask) { 29 complete(&adev->ipc->done_completion); 30 31 /* Tell DSP it has our attention. */ 32 snd_hdac_adsp_updatel(adev, spec->hipc->ack_offset, spec->hipc->ack_done_mask, 33 spec->hipc->ack_done_mask); 34 } 35 36 /* DSP sent new response to process */ 37 if (hipc_rsp & spec->hipc->rsp_busy_mask) { 38 union avs_reply_msg msg; 39 40 msg.primary = snd_hdac_adsp_readl(adev, SKL_ADSP_REG_HIPCT); 41 msg.ext.val = snd_hdac_adsp_readl(adev, SKL_ADSP_REG_HIPCTE); 42 43 avs_dsp_process_response(adev, msg.val); 44 45 /* Tell DSP we accepted its message. */ 46 snd_hdac_adsp_updatel(adev, SKL_ADSP_REG_HIPCT, SKL_ADSP_HIPCT_BUSY, 47 SKL_ADSP_HIPCT_BUSY); 48 } 49 50 snd_hdac_adsp_updatel(adev, spec->hipc->ctl_offset, 51 AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY, 52 AVS_ADSP_HIPCCTL_DONE | AVS_ADSP_HIPCCTL_BUSY); 53 } 54 55 static irqreturn_t avs_skl_dsp_interrupt(struct avs_dev *adev) 56 { 57 u32 adspis = snd_hdac_adsp_readl(adev, AVS_ADSP_REG_ADSPIS); 58 irqreturn_t ret = IRQ_NONE; 59 60 if (adspis == UINT_MAX) 61 return ret; 62 63 if (adspis & AVS_ADSP_ADSPIS_CLDMA) { 64 hda_cldma_interrupt(&code_loader); 65 ret = IRQ_HANDLED; 66 } 67 68 if (adspis & AVS_ADSP_ADSPIS_IPC) { 69 avs_skl_ipc_interrupt(adev); 70 ret = IRQ_HANDLED; 71 } 72 73 return ret; 74 } 75 76 static int __maybe_unused 77 avs_skl_enable_logs(struct avs_dev *adev, enum avs_log_enable enable, u32 aging_period, 78 u32 fifo_full_period, unsigned long resource_mask, u32 *priorities) 79 { 80 struct avs_skl_log_state_info *info; 81 u32 size, num_cores = adev->hw_cfg.dsp_cores; 82 int ret, i; 83 84 if (fls_long(resource_mask) > num_cores) 85 return -EINVAL; 86 size = struct_size(info, logs_core, num_cores); 87 info = kzalloc(size, GFP_KERNEL); 88 if (!info) 89 return -ENOMEM; 90 91 info->core_mask = resource_mask; 92 if (enable) 93 for_each_set_bit(i, &resource_mask, num_cores) { 94 info->logs_core[i].enable = enable; 95 info->logs_core[i].min_priority = *priorities++; 96 } 97 else 98 for_each_set_bit(i, &resource_mask, num_cores) 99 info->logs_core[i].enable = enable; 100 101 ret = avs_ipc_set_enable_logs(adev, (u8 *)info, size); 102 kfree(info); 103 if (ret) 104 return AVS_IPC_RET(ret); 105 106 return 0; 107 } 108 109 int avs_skl_log_buffer_offset(struct avs_dev *adev, u32 core) 110 { 111 return core * avs_log_buffer_size(adev); 112 } 113 114 /* fw DbgLogWp registers */ 115 #define FW_REGS_DBG_LOG_WP(core) (0x30 + 0x4 * core) 116 117 static int avs_skl_log_buffer_status(struct avs_dev *adev, union avs_notify_msg *msg) 118 { 119 void __iomem *buf; 120 u16 size, write, offset; 121 122 if (!avs_logging_fw(adev)) 123 return 0; 124 125 size = avs_log_buffer_size(adev) / 2; 126 write = readl(avs_sram_addr(adev, AVS_FW_REGS_WINDOW) + FW_REGS_DBG_LOG_WP(msg->log.core)); 127 /* determine buffer half */ 128 offset = (write < size) ? size : 0; 129 130 /* Address is guaranteed to exist in SRAM2. */ 131 buf = avs_log_buffer_addr(adev, msg->log.core) + offset; 132 avs_dump_fw_log_wakeup(adev, buf, size); 133 134 return 0; 135 } 136 137 static int avs_skl_coredump(struct avs_dev *adev, union avs_notify_msg *msg) 138 { 139 u8 *dump; 140 141 dump = vzalloc(AVS_FW_REGS_SIZE); 142 if (!dump) 143 return -ENOMEM; 144 145 memcpy_fromio(dump, avs_sram_addr(adev, AVS_FW_REGS_WINDOW), AVS_FW_REGS_SIZE); 146 dev_coredumpv(adev->dev, dump, AVS_FW_REGS_SIZE, GFP_KERNEL); 147 148 return 0; 149 } 150 151 static bool avs_skl_d0ix_toggle(struct avs_dev *adev, struct avs_ipc_msg *tx, bool wake) 152 { 153 /* unsupported on cAVS 1.5 hw */ 154 return false; 155 } 156 157 static int avs_skl_set_d0ix(struct avs_dev *adev, bool enable) 158 { 159 /* unsupported on cAVS 1.5 hw */ 160 return 0; 161 } 162 163 const struct avs_dsp_ops avs_skl_dsp_ops = { 164 .power = avs_dsp_core_power, 165 .reset = avs_dsp_core_reset, 166 .stall = avs_dsp_core_stall, 167 .dsp_interrupt = avs_skl_dsp_interrupt, 168 .int_control = avs_dsp_interrupt_control, 169 .load_basefw = avs_cldma_load_basefw, 170 .load_lib = avs_cldma_load_library, 171 .transfer_mods = avs_cldma_transfer_modules, 172 .log_buffer_offset = avs_skl_log_buffer_offset, 173 .log_buffer_status = avs_skl_log_buffer_status, 174 .coredump = avs_skl_coredump, 175 .d0ix_toggle = avs_skl_d0ix_toggle, 176 .set_d0ix = avs_skl_set_d0ix, 177 AVS_SET_ENABLE_LOGS_OP(skl) 178 }; 179