// SPDX-License-Identifier: GPL-2.0-only /* * skl-debug.c - Debugfs for skl driver * * Copyright (C) 2016-17 Intel Corp */ #include #include #include #include "skl.h" #include "skl-sst-dsp.h" #include "skl-sst-ipc.h" #include "skl-topology.h" #include "../common/sst-dsp.h" #include "../common/sst-dsp-priv.h" #define MOD_BUF PAGE_SIZE #define FW_REG_BUF PAGE_SIZE #define FW_REG_SIZE 0x60 struct skl_debug { struct skl_dev *skl; struct device *dev; struct dentry *fs; struct dentry *modules; u8 fw_read_buff[FW_REG_BUF]; }; static ssize_t skl_print_pins(struct skl_module_pin *m_pin, char *buf, int max_pin, ssize_t size, bool direction) { int i; ssize_t ret = 0; for (i = 0; i < max_pin; i++) ret += snprintf(buf + size, MOD_BUF - size, "%s %d\n\tModule %d\n\tInstance %d\n\t" "In-used %s\n\tType %s\n" "\tState %d\n\tIndex %d\n", direction ? "Input Pin:" : "Output Pin:", i, m_pin[i].id.module_id, m_pin[i].id.instance_id, m_pin[i].in_use ? "Used" : "Unused", m_pin[i].is_dynamic ? "Dynamic" : "Static", m_pin[i].pin_state, i); return ret; } static ssize_t skl_print_fmt(struct skl_module_fmt *fmt, char *buf, ssize_t size, bool direction) { return snprintf(buf + size, MOD_BUF - size, "%s\n\tCh %d\n\tFreq %d\n\tBit depth %d\n\t" "Valid bit depth %d\n\tCh config %#x\n\tInterleaving %d\n\t" "Sample Type %d\n\tCh Map %#x\n", direction ? "Input Format:" : "Output Format:", fmt->channels, fmt->s_freq, fmt->bit_depth, fmt->valid_bit_depth, fmt->ch_cfg, fmt->interleaving_style, fmt->sample_type, fmt->ch_map); } static ssize_t module_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct skl_module_cfg *mconfig = file->private_data; struct skl_module *module = mconfig->module; struct skl_module_res *res = &module->resources[mconfig->res_idx]; char *buf; ssize_t ret; buf = kzalloc(MOD_BUF, GFP_KERNEL); if (!buf) return -ENOMEM; ret = snprintf(buf, MOD_BUF, "Module:\n\tUUID %pUL\n\tModule id %d\n" "\tInstance id %d\n\tPvt_id %d\n", mconfig->guid, mconfig->id.module_id, mconfig->id.instance_id, mconfig->id.pvt_id); ret += snprintf(buf + ret, MOD_BUF - ret, "Resources:\n\tCPC %#x\n\tIBS %#x\n\tOBS %#x\t\n", res->cpc, res->ibs, res->obs); ret += snprintf(buf + ret, MOD_BUF - ret, "Module data:\n\tCore %d\n\tIn queue %d\n\t" "Out queue %d\n\tType %s\n", mconfig->core_id, mconfig->max_in_queue, mconfig->max_out_queue, mconfig->is_loadable ? "loadable" : "inbuilt"); ret += skl_print_fmt(mconfig->in_fmt, buf, ret, true); ret += skl_print_fmt(mconfig->out_fmt, buf, ret, false); ret += snprintf(buf + ret, MOD_BUF - ret, "Fixup:\n\tParams %#x\n\tConverter %#x\n", mconfig->params_fixup, mconfig->converter); ret += snprintf(buf + ret, MOD_BUF - ret, "Module Gateway:\n\tType %#x\n\tVbus %#x\n\tHW conn %#x\n\tSlot %#x\n", mconfig->dev_type, mconfig->vbus_id, mconfig->hw_conn_type, mconfig->time_slot); ret += snprintf(buf + ret, MOD_BUF - ret, "Pipeline:\n\tID %d\n\tPriority %d\n\tConn Type %d\n\t" "Pages %#x\n", mconfig->pipe->ppl_id, mconfig->pipe->pipe_priority, mconfig->pipe->conn_type, mconfig->pipe->memory_pages); ret += snprintf(buf + ret, MOD_BUF - ret, "\tParams:\n\t\tHost DMA %d\n\t\tLink DMA %d\n", mconfig->pipe->p_params->host_dma_id, mconfig->pipe->p_params->link_dma_id); ret += snprintf(buf + ret, MOD_BUF - ret, "\tPCM params:\n\t\tCh %d\n\t\tFreq %d\n\t\tFormat %d\n", mconfig->pipe->p_params->ch, mconfig->pipe->p_params->s_freq, mconfig->pipe->p_params->s_fmt); ret += snprintf(buf + ret, MOD_BUF - ret, "\tLink %#x\n\tStream %#x\n", mconfig->pipe->p_params->linktype, mconfig->pipe->p_params->stream); ret += snprintf(buf + ret, MOD_BUF - ret, "\tState %d\n\tPassthru %s\n", mconfig->pipe->state, mconfig->pipe->passthru ? "true" : "false"); ret += skl_print_pins(mconfig->m_in_pin, buf, mconfig->max_in_queue, ret, true); ret += skl_print_pins(mconfig->m_out_pin, buf, mconfig->max_out_queue, ret, false); ret += snprintf(buf + ret, MOD_BUF - ret, "Other:\n\tDomain %d\n\tHomogeneous Input %s\n\t" "Homogeneous Output %s\n\tIn Queue Mask %d\n\t" "Out Queue Mask %d\n\tDMA ID %d\n\tMem Pages %d\n\t" "Module Type %d\n\tModule State %d\n", mconfig->domain, mconfig->homogenous_inputs ? "true" : "false", mconfig->homogenous_outputs ? "true" : "false", mconfig->in_queue_mask, mconfig->out_queue_mask, mconfig->dma_id, mconfig->mem_pages, mconfig->m_state, mconfig->m_type); ret = simple_read_from_buffer(user_buf, count, ppos, buf, ret); kfree(buf); return ret; } static const struct file_operations mcfg_fops = { .open = simple_open, .read = module_read, .llseek = default_llseek, }; void skl_debug_init_module(struct skl_debug *d, struct snd_soc_dapm_widget *w, struct skl_module_cfg *mconfig) { debugfs_create_file(w->name, 0444, d->modules, mconfig, &mcfg_fops); } static ssize_t fw_softreg_read(struct file *file, char __user *user_buf, size_t count, loff_t *ppos) { struct skl_debug *d = file->private_data; struct sst_dsp *sst = d->skl->dsp; size_t w0_stat_sz = sst->addr.w0_stat_sz; void __iomem *in_base = sst->mailbox.in_base; void __iomem *fw_reg_addr; unsigned int offset; char *tmp; ssize_t ret = 0; tmp = kzalloc(FW_REG_BUF, GFP_KERNEL); if (!tmp) return -ENOMEM; fw_reg_addr = in_base - w0_stat_sz; memset(d->fw_read_buff, 0, FW_REG_BUF); if (w0_stat_sz > 0) __ioread32_copy(d->fw_read_buff, fw_reg_addr, w0_stat_sz >> 2); for (offset = 0; offset < FW_REG_SIZE; offset += 16) { ret += snprintf(tmp + ret, FW_REG_BUF - ret, "%#.4x: ", offset); hex_dump_to_buffer(d->fw_read_buff + offset, 16, 16, 4, tmp + ret, FW_REG_BUF - ret, 0); ret += strlen(tmp + ret); /* print newline for each offset */ if (FW_REG_BUF - ret > 0) tmp[ret++] = '\n'; } ret = simple_read_from_buffer(user_buf, count, ppos, tmp, ret); kfree(tmp); return ret; } static const struct file_operations soft_regs_ctrl_fops = { .open = simple_open, .read = fw_softreg_read, .llseek = default_llseek, }; struct skl_debug *skl_debugfs_init(struct skl_dev *skl) { struct skl_debug *d; d = devm_kzalloc(&skl->pci->dev, sizeof(*d), GFP_KERNEL); if (!d) return NULL; /* create the debugfs dir with platform component's debugfs as parent */ d->fs = debugfs_create_dir("dsp", skl->component->debugfs_root); d->skl = skl; d->dev = &skl->pci->dev; /* now create the module dir */ d->modules = debugfs_create_dir("modules", d->fs); debugfs_create_file("fw_soft_regs_rd", 0444, d->fs, d, &soft_regs_ctrl_fops); return d; } void skl_debugfs_exit(struct skl_dev *skl) { struct skl_debug *d = skl->debugfs; debugfs_remove_recursive(d->fs); d = NULL; }