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 22struct 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 31static 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 += scnprintf(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 size += ret; 49 } 50 return ret; 51} 52 53static ssize_t skl_print_fmt(struct skl_module_fmt *fmt, char *buf, 54 ssize_t size, bool direction) 55{ 56 return scnprintf(buf + size, MOD_BUF - size, 57 "%s\n\tCh %d\n\tFreq %d\n\tBit depth %d\n\t" 58 "Valid bit depth %d\n\tCh config %#x\n\tInterleaving %d\n\t" 59 "Sample Type %d\n\tCh Map %#x\n", 60 direction ? "Input Format:" : "Output Format:", 61 fmt->channels, fmt->s_freq, fmt->bit_depth, 62 fmt->valid_bit_depth, fmt->ch_cfg, 63 fmt->interleaving_style, fmt->sample_type, 64 fmt->ch_map); 65} 66 67static ssize_t module_read(struct file *file, char __user *user_buf, 68 size_t count, loff_t *ppos) 69{ 70 struct skl_module_cfg *mconfig = file->private_data; 71 struct skl_module *module = mconfig->module; 72 struct skl_module_res *res = &module->resources[mconfig->res_idx]; 73 char *buf; 74 ssize_t ret; 75 76 buf = kzalloc(MOD_BUF, GFP_KERNEL); 77 if (!buf) 78 return -ENOMEM; 79 80 ret = scnprintf(buf, MOD_BUF, "Module:\n\tUUID %pUL\n\tModule id %d\n" 81 "\tInstance id %d\n\tPvt_id %d\n", mconfig->guid, 82 mconfig->id.module_id, mconfig->id.instance_id, 83 mconfig->id.pvt_id); 84 85 ret += scnprintf(buf + ret, MOD_BUF - ret, 86 "Resources:\n\tCPC %#x\n\tIBS %#x\n\tOBS %#x\t\n", 87 res->cpc, res->ibs, res->obs); 88 89 ret += scnprintf(buf + ret, MOD_BUF - ret, 90 "Module data:\n\tCore %d\n\tIn queue %d\n\t" 91 "Out queue %d\n\tType %s\n", 92 mconfig->core_id, mconfig->max_in_queue, 93 mconfig->max_out_queue, 94 mconfig->is_loadable ? "loadable" : "inbuilt"); 95 96 ret += skl_print_fmt(mconfig->in_fmt, buf, ret, true); 97 ret += skl_print_fmt(mconfig->out_fmt, buf, ret, false); 98 99 ret += scnprintf(buf + ret, MOD_BUF - ret, 100 "Fixup:\n\tParams %#x\n\tConverter %#x\n", 101 mconfig->params_fixup, mconfig->converter); 102 103 ret += scnprintf(buf + ret, MOD_BUF - ret, 104 "Module Gateway:\n\tType %#x\n\tVbus %#x\n\tHW conn %#x\n\tSlot %#x\n", 105 mconfig->dev_type, mconfig->vbus_id, 106 mconfig->hw_conn_type, mconfig->time_slot); 107 108 ret += scnprintf(buf + ret, MOD_BUF - ret, 109 "Pipeline:\n\tID %d\n\tPriority %d\n\tConn Type %d\n\t" 110 "Pages %#x\n", mconfig->pipe->ppl_id, 111 mconfig->pipe->pipe_priority, mconfig->pipe->conn_type, 112 mconfig->pipe->memory_pages); 113 114 ret += scnprintf(buf + ret, MOD_BUF - ret, 115 "\tParams:\n\t\tHost DMA %d\n\t\tLink DMA %d\n", 116 mconfig->pipe->p_params->host_dma_id, 117 mconfig->pipe->p_params->link_dma_id); 118 119 ret += scnprintf(buf + ret, MOD_BUF - ret, 120 "\tPCM params:\n\t\tCh %d\n\t\tFreq %d\n\t\tFormat %d\n", 121 mconfig->pipe->p_params->ch, 122 mconfig->pipe->p_params->s_freq, 123 mconfig->pipe->p_params->s_fmt); 124 125 ret += scnprintf(buf + ret, MOD_BUF - ret, 126 "\tLink %#x\n\tStream %#x\n", 127 mconfig->pipe->p_params->linktype, 128 mconfig->pipe->p_params->stream); 129 130 ret += scnprintf(buf + ret, MOD_BUF - ret, 131 "\tState %d\n\tPassthru %s\n", 132 mconfig->pipe->state, 133 mconfig->pipe->passthru ? "true" : "false"); 134 135 ret += skl_print_pins(mconfig->m_in_pin, buf, 136 mconfig->max_in_queue, ret, true); 137 ret += skl_print_pins(mconfig->m_out_pin, buf, 138 mconfig->max_out_queue, ret, false); 139 140 ret += scnprintf(buf + ret, MOD_BUF - ret, 141 "Other:\n\tDomain %d\n\tHomogeneous Input %s\n\t" 142 "Homogeneous Output %s\n\tIn Queue Mask %d\n\t" 143 "Out Queue Mask %d\n\tDMA ID %d\n\tMem Pages %d\n\t" 144 "Module Type %d\n\tModule State %d\n", 145 mconfig->domain, 146 mconfig->homogenous_inputs ? "true" : "false", 147 mconfig->homogenous_outputs ? "true" : "false", 148 mconfig->in_queue_mask, mconfig->out_queue_mask, 149 mconfig->dma_id, mconfig->mem_pages, mconfig->m_state, 150 mconfig->m_type); 151 152 ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); 153 154 kfree(buf); 155 return ret; 156} 157 158static const struct file_operations mcfg_fops = { 159 .open = simple_open, 160 .read = module_read, 161 .llseek = default_llseek, 162}; 163 164 165void skl_debug_init_module(struct skl_debug *d, 166 struct snd_soc_dapm_widget *w, 167 struct skl_module_cfg *mconfig) 168{ 169 debugfs_create_file(w->name, 0444, d->modules, mconfig, 170 &mcfg_fops); 171} 172 173static ssize_t fw_softreg_read(struct file *file, char __user *user_buf, 174 size_t count, loff_t *ppos) 175{ 176 struct skl_debug *d = file->private_data; 177 struct sst_dsp *sst = d->skl->dsp; 178 size_t w0_stat_sz = sst->addr.w0_stat_sz; 179 void __iomem *in_base = sst->mailbox.in_base; 180 void __iomem *fw_reg_addr; 181 unsigned int offset; 182 char *tmp; 183 ssize_t ret = 0; 184 185 tmp = kzalloc(FW_REG_BUF, GFP_KERNEL); 186 if (!tmp) 187 return -ENOMEM; 188 189 fw_reg_addr = in_base - w0_stat_sz; 190 memset(d->fw_read_buff, 0, FW_REG_BUF); 191 192 if (w0_stat_sz > 0) 193 __ioread32_copy(d->fw_read_buff, fw_reg_addr, w0_stat_sz >> 2); 194 195 for (offset = 0; offset < FW_REG_SIZE; offset += 16) { 196 ret += scnprintf(tmp + ret, FW_REG_BUF - ret, "%#.4x: ", offset); 197 hex_dump_to_buffer(d->fw_read_buff + offset, 16, 16, 4, 198 tmp + ret, FW_REG_BUF - ret, 0); 199 ret += strlen(tmp + ret); 200 201 /* print newline for each offset */ 202 if (FW_REG_BUF - ret > 0) 203 tmp[ret++] = '\n'; 204 } 205 206 ret = simple_read_from_buffer(user_buf, count, ppos, tmp, ret); 207 kfree(tmp); 208 209 return ret; 210} 211 212static const struct file_operations soft_regs_ctrl_fops = { 213 .open = simple_open, 214 .read = fw_softreg_read, 215 .llseek = default_llseek, 216}; 217 218struct skl_debug *skl_debugfs_init(struct skl_dev *skl) 219{ 220 struct skl_debug *d; 221 222 d = devm_kzalloc(&skl->pci->dev, sizeof(*d), GFP_KERNEL); 223 if (!d) 224 return NULL; 225 226 /* create the debugfs dir with platform component's debugfs as parent */ 227 d->fs = debugfs_create_dir("dsp", skl->component->debugfs_root); 228 229 d->skl = skl; 230 d->dev = &skl->pci->dev; 231 232 /* now create the module dir */ 233 d->modules = debugfs_create_dir("modules", d->fs); 234 235 debugfs_create_file("fw_soft_regs_rd", 0444, d->fs, d, 236 &soft_regs_ctrl_fops); 237 238 return d; 239} 240 241void skl_debugfs_exit(struct skl_dev *skl) 242{ 243 struct skl_debug *d = skl->debugfs; 244 245 debugfs_remove_recursive(d->fs); 246 247 d = NULL; 248} 249