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author | Cezary Rojewski <cezary.rojewski@intel.com> | 2022-05-16 12:11:16 +0200 |
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committer | Mark Brown <broonie@kernel.org> | 2022-05-17 11:58:08 +0100 |
commit | c8c960c109716d96cfd1de65396fb8021eed4202 (patch) | |
tree | 0b85460ec46a6925b303e927a0aba0882f91fc69 /sound/soc/intel/avs/apl.c | |
parent | b3e29075b2346564f1bef7f8e19a1a7fcbcf7ed8 (diff) | |
download | linux-stable-c8c960c109716d96cfd1de65396fb8021eed4202.tar.gz linux-stable-c8c960c109716d96cfd1de65396fb8021eed4202.tar.bz2 linux-stable-c8c960c109716d96cfd1de65396fb8021eed4202.zip |
ASoC: Intel: avs: APL-based platforms support
Define handlers specific to cAVS 1.5+ platforms, that is, APL and
similar platforms. These differ from SKL-alike ones in terms of AudioDSP
firmware generation and thus the '+' suffix. Introduciton of IMR,
removal of CLDMA, D0IX support and monolithic-ation of library/module
code are most impactful but are not the only changes brought with this
newer generation. Some generic and 1.5 operations are being re-used to
reduce code size.
Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220516101116.190192-16-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/intel/avs/apl.c')
-rw-r--r-- | sound/soc/intel/avs/apl.c | 250 |
1 files changed, 250 insertions, 0 deletions
diff --git a/sound/soc/intel/avs/apl.c b/sound/soc/intel/avs/apl.c new file mode 100644 index 000000000000..b8e2b23c9f64 --- /dev/null +++ b/sound/soc/intel/avs/apl.c @@ -0,0 +1,250 @@ +// SPDX-License-Identifier: GPL-2.0-only +// +// Copyright(c) 2021-2022 Intel Corporation. All rights reserved. +// +// Authors: Cezary Rojewski <cezary.rojewski@intel.com> +// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com> +// + +#include <linux/devcoredump.h> +#include <linux/slab.h> +#include "avs.h" +#include "messages.h" +#include "path.h" +#include "topology.h" + +static int apl_enable_logs(struct avs_dev *adev, enum avs_log_enable enable, u32 aging_period, + u32 fifo_full_period, unsigned long resource_mask, u32 *priorities) +{ + struct apl_log_state_info *info; + u32 size, num_cores = adev->hw_cfg.dsp_cores; + int ret, i; + + if (fls_long(resource_mask) > num_cores) + return -EINVAL; + size = struct_size(info, logs_core, num_cores); + info = kzalloc(size, GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->aging_timer_period = aging_period; + info->fifo_full_timer_period = fifo_full_period; + info->core_mask = resource_mask; + if (enable) + for_each_set_bit(i, &resource_mask, num_cores) { + info->logs_core[i].enable = enable; + info->logs_core[i].min_priority = *priorities++; + } + else + for_each_set_bit(i, &resource_mask, num_cores) + info->logs_core[i].enable = enable; + + ret = avs_ipc_set_enable_logs(adev, (u8 *)info, size); + kfree(info); + if (ret) + return AVS_IPC_RET(ret); + + return 0; +} + +static int apl_log_buffer_status(struct avs_dev *adev, union avs_notify_msg *msg) +{ + struct apl_log_buffer_layout layout; + unsigned long flags; + void __iomem *addr, *buf; + + addr = avs_log_buffer_addr(adev, msg->log.core); + if (!addr) + return -ENXIO; + + memcpy_fromio(&layout, addr, sizeof(layout)); + + spin_lock_irqsave(&adev->dbg.trace_lock, flags); + if (!kfifo_initialized(&adev->dbg.trace_fifo)) + /* consume the logs regardless of consumer presence */ + goto update_read_ptr; + + buf = apl_log_payload_addr(addr); + + if (layout.read_ptr > layout.write_ptr) { + __kfifo_fromio_locked(&adev->dbg.trace_fifo, buf + layout.read_ptr, + apl_log_payload_size(adev) - layout.read_ptr, + &adev->dbg.fifo_lock); + layout.read_ptr = 0; + } + __kfifo_fromio_locked(&adev->dbg.trace_fifo, buf + layout.read_ptr, + layout.write_ptr - layout.read_ptr, &adev->dbg.fifo_lock); + + wake_up(&adev->dbg.trace_waitq); + +update_read_ptr: + spin_unlock_irqrestore(&adev->dbg.trace_lock, flags); + writel(layout.write_ptr, addr); + return 0; +} + +static int apl_wait_log_entry(struct avs_dev *adev, u32 core, struct apl_log_buffer_layout *layout) +{ + unsigned long timeout; + void __iomem *addr; + + addr = avs_log_buffer_addr(adev, core); + if (!addr) + return -ENXIO; + + timeout = jiffies + msecs_to_jiffies(10); + + do { + memcpy_fromio(layout, addr, sizeof(*layout)); + if (layout->read_ptr != layout->write_ptr) + return 0; + usleep_range(500, 1000); + } while (!time_after(jiffies, timeout)); + + return -ETIMEDOUT; +} + +/* reads log header and tests its type */ +#define apl_is_entry_stackdump(addr) ((readl(addr) >> 30) & 0x1) + +static int apl_coredump(struct avs_dev *adev, union avs_notify_msg *msg) +{ + struct apl_log_buffer_layout layout; + void __iomem *addr, *buf; + size_t dump_size; + u16 offset = 0; + u8 *dump, *pos; + + dump_size = AVS_FW_REGS_SIZE + msg->ext.coredump.stack_dump_size; + dump = vzalloc(dump_size); + if (!dump) + return -ENOMEM; + + memcpy_fromio(dump, avs_sram_addr(adev, AVS_FW_REGS_WINDOW), AVS_FW_REGS_SIZE); + + if (!msg->ext.coredump.stack_dump_size) + goto exit; + + /* Dump the registers even if an external error prevents gathering the stack. */ + addr = avs_log_buffer_addr(adev, msg->ext.coredump.core_id); + if (!addr) + goto exit; + + buf = apl_log_payload_addr(addr); + memcpy_fromio(&layout, addr, sizeof(layout)); + if (!apl_is_entry_stackdump(buf + layout.read_ptr)) { + /* + * DSP awaits the remaining logs to be + * gathered before dumping stack + */ + msg->log.core = msg->ext.coredump.core_id; + avs_dsp_op(adev, log_buffer_status, msg); + } + + pos = dump + AVS_FW_REGS_SIZE; + /* gather the stack */ + do { + u32 count; + + if (apl_wait_log_entry(adev, msg->ext.coredump.core_id, &layout)) + break; + + if (layout.read_ptr > layout.write_ptr) { + count = apl_log_payload_size(adev) - layout.read_ptr; + memcpy_fromio(pos + offset, buf + layout.read_ptr, count); + layout.read_ptr = 0; + offset += count; + } + count = layout.write_ptr - layout.read_ptr; + memcpy_fromio(pos + offset, buf + layout.read_ptr, count); + offset += count; + + /* update read pointer */ + writel(layout.write_ptr, addr); + } while (offset < msg->ext.coredump.stack_dump_size); + +exit: + dev_coredumpv(adev->dev, dump, dump_size, GFP_KERNEL); + + return 0; +} + +static bool apl_lp_streaming(struct avs_dev *adev) +{ + struct avs_path *path; + + /* Any gateway without buffer allocated in LP area disqualifies D0IX. */ + list_for_each_entry(path, &adev->path_list, node) { + struct avs_path_pipeline *ppl; + + list_for_each_entry(ppl, &path->ppl_list, node) { + struct avs_path_module *mod; + + list_for_each_entry(mod, &ppl->mod_list, node) { + struct avs_tplg_modcfg_ext *cfg; + + cfg = mod->template->cfg_ext; + + /* only copiers have gateway attributes */ + if (!guid_equal(&cfg->type, &AVS_COPIER_MOD_UUID)) + continue; + /* non-gateway copiers do not prevent PG */ + if (cfg->copier.dma_type == INVALID_OBJECT_ID) + continue; + + if (!mod->gtw_attrs.lp_buffer_alloc) + return false; + } + } + } + + return true; +} + +static bool apl_d0ix_toggle(struct avs_dev *adev, struct avs_ipc_msg *tx, bool wake) +{ + /* wake in all cases */ + if (wake) + return true; + + /* + * If no pipelines are running, allow for d0ix schedule. + * If all gateways have lp=1, allow for d0ix schedule. + * If any gateway with lp=0 is allocated, abort scheduling d0ix. + * + * Note: for cAVS 1.5+ and 1.8, D0IX is LP-firmware transition, + * not the power-gating mechanism known from cAVS 2.0. + */ + return apl_lp_streaming(adev); +} + +static int apl_set_d0ix(struct avs_dev *adev, bool enable) +{ + bool streaming = false; + int ret; + + if (enable) + /* Either idle or all gateways with lp=1. */ + streaming = !list_empty(&adev->path_list); + + ret = avs_ipc_set_d0ix(adev, enable, streaming); + return AVS_IPC_RET(ret); +} + +const struct avs_dsp_ops apl_dsp_ops = { + .power = avs_dsp_core_power, + .reset = avs_dsp_core_reset, + .stall = avs_dsp_core_stall, + .irq_handler = avs_dsp_irq_handler, + .irq_thread = avs_dsp_irq_thread, + .int_control = avs_dsp_interrupt_control, + .load_basefw = avs_hda_load_basefw, + .load_lib = avs_hda_load_library, + .transfer_mods = avs_hda_transfer_modules, + .enable_logs = apl_enable_logs, + .log_buffer_offset = skl_log_buffer_offset, + .log_buffer_status = apl_log_buffer_status, + .coredump = apl_coredump, + .d0ix_toggle = apl_d0ix_toggle, + .set_d0ix = apl_set_d0ix, +}; 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