1 // SPDX-License-Identifier: GPL-2.0-only 2 /* 3 * skl-debug.c - Debugfs for skl driver 4 * 5 * Copyright (C) 2016-17 Intel Corp 6 */ 7 8 #include <linux/pci.h> 9 #include <linux/debugfs.h> 10 #include <uapi/sound/skl-tplg-interface.h> 11 #include "skl.h" 12 #include "skl-sst-dsp.h" 13 #include "skl-sst-ipc.h" 14 #include "skl-topology.h" 15 #include "../common/sst-dsp.h" 16 #include "../common/sst-dsp-priv.h" 17 18 #define MOD_BUF PAGE_SIZE 19 #define FW_REG_BUF PAGE_SIZE 20 #define FW_REG_SIZE 0x60 21 22 struct skl_debug { 23 struct skl_dev *skl; 24 struct device *dev; 25 26 struct dentry *fs; 27 struct dentry *modules; 28 u8 fw_read_buff[FW_REG_BUF]; 29 }; 30 31 static ssize_t skl_print_pins(struct skl_module_pin *m_pin, char *buf, 32 int max_pin, ssize_t size, bool direction) 33 { 34 int i; 35 ssize_t ret = 0; 36 37 for (i = 0; i < max_pin; i++) 38 ret += snprintf(buf + size, MOD_BUF - size, 39 "%s %d\n\tModule %d\n\tInstance %d\n\t" 40 "In-used %s\n\tType %s\n" 41 "\tState %d\n\tIndex %d\n", 42 direction ? "Input Pin:" : "Output Pin:", 43 i, m_pin[i].id.module_id, 44 m_pin[i].id.instance_id, 45 m_pin[i].in_use ? "Used" : "Unused", 46 m_pin[i].is_dynamic ? "Dynamic" : "Static", 47 m_pin[i].pin_state, i); 48 return ret; 49 } 50 51 static ssize_t skl_print_fmt(struct skl_module_fmt *fmt, char *buf, 52 ssize_t size, bool direction) 53 { 54 return snprintf(buf + size, MOD_BUF - size, 55 "%s\n\tCh %d\n\tFreq %d\n\tBit depth %d\n\t" 56 "Valid bit depth %d\n\tCh config %#x\n\tInterleaving %d\n\t" 57 "Sample Type %d\n\tCh Map %#x\n", 58 direction ? "Input Format:" : "Output Format:", 59 fmt->channels, fmt->s_freq, fmt->bit_depth, 60 fmt->valid_bit_depth, fmt->ch_cfg, 61 fmt->interleaving_style, fmt->sample_type, 62 fmt->ch_map); 63 } 64 65 static ssize_t module_read(struct file *file, char __user *user_buf, 66 size_t count, loff_t *ppos) 67 { 68 struct skl_module_cfg *mconfig = file->private_data; 69 struct skl_module *module = mconfig->module; 70 struct skl_module_res *res = &module->resources[mconfig->res_idx]; 71 char *buf; 72 ssize_t ret; 73 74 buf = kzalloc(MOD_BUF, GFP_KERNEL); 75 if (!buf) 76 return -ENOMEM; 77 78 ret = snprintf(buf, MOD_BUF, "Module:\n\tUUID %pUL\n\tModule id %d\n" 79 "\tInstance id %d\n\tPvt_id %d\n", mconfig->guid, 80 mconfig->id.module_id, mconfig->id.instance_id, 81 mconfig->id.pvt_id); 82 83 ret += snprintf(buf + ret, MOD_BUF - ret, 84 "Resources:\n\tCPC %#x\n\tIBS %#x\n\tOBS %#x\t\n", 85 res->cpc, res->ibs, res->obs); 86 87 ret += snprintf(buf + ret, MOD_BUF - ret, 88 "Module data:\n\tCore %d\n\tIn queue %d\n\t" 89 "Out queue %d\n\tType %s\n", 90 mconfig->core_id, mconfig->max_in_queue, 91 mconfig->max_out_queue, 92 mconfig->is_loadable ? "loadable" : "inbuilt"); 93 94 ret += skl_print_fmt(mconfig->in_fmt, buf, ret, true); 95 ret += skl_print_fmt(mconfig->out_fmt, buf, ret, false); 96 97 ret += snprintf(buf + ret, MOD_BUF - ret, 98 "Fixup:\n\tParams %#x\n\tConverter %#x\n", 99 mconfig->params_fixup, mconfig->converter); 100 101 ret += snprintf(buf + ret, MOD_BUF - ret, 102 "Module Gateway:\n\tType %#x\n\tVbus %#x\n\tHW conn %#x\n\tSlot %#x\n", 103 mconfig->dev_type, mconfig->vbus_id, 104 mconfig->hw_conn_type, mconfig->time_slot); 105 106 ret += snprintf(buf + ret, MOD_BUF - ret, 107 "Pipeline:\n\tID %d\n\tPriority %d\n\tConn Type %d\n\t" 108 "Pages %#x\n", mconfig->pipe->ppl_id, 109 mconfig->pipe->pipe_priority, mconfig->pipe->conn_type, 110 mconfig->pipe->memory_pages); 111 112 ret += snprintf(buf + ret, MOD_BUF - ret, 113 "\tParams:\n\t\tHost DMA %d\n\t\tLink DMA %d\n", 114 mconfig->pipe->p_params->host_dma_id, 115 mconfig->pipe->p_params->link_dma_id); 116 117 ret += snprintf(buf + ret, MOD_BUF - ret, 118 "\tPCM params:\n\t\tCh %d\n\t\tFreq %d\n\t\tFormat %d\n", 119 mconfig->pipe->p_params->ch, 120 mconfig->pipe->p_params->s_freq, 121 mconfig->pipe->p_params->s_fmt); 122 123 ret += snprintf(buf + ret, MOD_BUF - ret, 124 "\tLink %#x\n\tStream %#x\n", 125 mconfig->pipe->p_params->linktype, 126 mconfig->pipe->p_params->stream); 127 128 ret += snprintf(buf + ret, MOD_BUF - ret, 129 "\tState %d\n\tPassthru %s\n", 130 mconfig->pipe->state, 131 mconfig->pipe->passthru ? "true" : "false"); 132 133 ret += skl_print_pins(mconfig->m_in_pin, buf, 134 mconfig->max_in_queue, ret, true); 135 ret += skl_print_pins(mconfig->m_out_pin, buf, 136 mconfig->max_out_queue, ret, false); 137 138 ret += snprintf(buf + ret, MOD_BUF - ret, 139 "Other:\n\tDomain %d\n\tHomogeneous Input %s\n\t" 140 "Homogeneous Output %s\n\tIn Queue Mask %d\n\t" 141 "Out Queue Mask %d\n\tDMA ID %d\n\tMem Pages %d\n\t" 142 "Module Type %d\n\tModule State %d\n", 143 mconfig->domain, 144 mconfig->homogenous_inputs ? "true" : "false", 145 mconfig->homogenous_outputs ? "true" : "false", 146 mconfig->in_queue_mask, mconfig->out_queue_mask, 147 mconfig->dma_id, mconfig->mem_pages, mconfig->m_state, 148 mconfig->m_type); 149 150 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); 151 152 kfree(buf); 153 return ret; 154 } 155 156 static const struct file_operations mcfg_fops = { 157 .open = simple_open, 158 .read = module_read, 159 .llseek = default_llseek, 160 }; 161 162 163 void skl_debug_init_module(struct skl_debug *d, 164 struct snd_soc_dapm_widget *w, 165 struct skl_module_cfg *mconfig) 166 { 167 debugfs_create_file(w->name, 0444, d->modules, mconfig, 168 &mcfg_fops); 169 } 170 171 static ssize_t fw_softreg_read(struct file *file, char __user *user_buf, 172 size_t count, loff_t *ppos) 173 { 174 struct skl_debug *d = file->private_data; 175 struct sst_dsp *sst = d->skl->dsp; 176 size_t w0_stat_sz = sst->addr.w0_stat_sz; 177 void __iomem *in_base = sst->mailbox.in_base; 178 void __iomem *fw_reg_addr; 179 unsigned int offset; 180 char *tmp; 181 ssize_t ret = 0; 182 183 tmp = kzalloc(FW_REG_BUF, GFP_KERNEL); 184 if (!tmp) 185 return -ENOMEM; 186 187 fw_reg_addr = in_base - w0_stat_sz; 188 memset(d->fw_read_buff, 0, FW_REG_BUF); 189 190 if (w0_stat_sz > 0) 191 __ioread32_copy(d->fw_read_buff, fw_reg_addr, w0_stat_sz >> 2); 192 193 for (offset = 0; offset < FW_REG_SIZE; offset += 16) { 194 ret += snprintf(tmp + ret, FW_REG_BUF - ret, "%#.4x: ", offset); 195 hex_dump_to_buffer(d->fw_read_buff + offset, 16, 16, 4, 196 tmp + ret, FW_REG_BUF - ret, 0); 197 ret += strlen(tmp + ret); 198 199 /* print newline for each offset */ 200 if (FW_REG_BUF - ret > 0) 201 tmp[ret++] = '\n'; 202 } 203 204 ret = simple_read_from_buffer(user_buf, count, ppos, tmp, ret); 205 kfree(tmp); 206 207 return ret; 208 } 209 210 static const struct file_operations soft_regs_ctrl_fops = { 211 .open = simple_open, 212 .read = fw_softreg_read, 213 .llseek = default_llseek, 214 }; 215 216 struct skl_debug *skl_debugfs_init(struct skl_dev *skl) 217 { 218 struct skl_debug *d; 219 220 d = devm_kzalloc(&skl->pci->dev, sizeof(*d), GFP_KERNEL); 221 if (!d) 222 return NULL; 223 224 /* create the debugfs dir with platform component's debugfs as parent */ 225 d->fs = debugfs_create_dir("dsp", skl->component->debugfs_root); 226 227 d->skl = skl; 228 d->dev = &skl->pci->dev; 229 230 /* now create the module dir */ 231 d->modules = debugfs_create_dir("modules", d->fs); 232 233 debugfs_create_file("fw_soft_regs_rd", 0444, d->fs, d, 234 &soft_regs_ctrl_fops); 235 236 return d; 237 } 238 239 void skl_debugfs_exit(struct skl_dev *skl) 240 { 241 struct skl_debug *d = skl->debugfs; 242 243 debugfs_remove_recursive(d->fs); 244 245 d = NULL; 246 } 247