diff options
Diffstat (limited to 'sound/soc/intel/skylake/skl-sst-dsp.c')
| -rw-r--r-- | sound/soc/intel/skylake/skl-sst-dsp.c | 462 |
1 files changed, 0 insertions, 462 deletions
diff --git a/sound/soc/intel/skylake/skl-sst-dsp.c b/sound/soc/intel/skylake/skl-sst-dsp.c deleted file mode 100644 index 4ae3eae0d1fd..000000000000 --- a/sound/soc/intel/skylake/skl-sst-dsp.c +++ /dev/null @@ -1,462 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only -/* - * skl-sst-dsp.c - SKL SST library generic function - * - * Copyright (C) 2014-15, Intel Corporation. - * Author:Rafal Redzimski <rafal.f.redzimski@intel.com> - * Jeeja KP <jeeja.kp@intel.com> - * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ - */ -#include <sound/pcm.h> - -#include "../common/sst-dsp.h" -#include "../common/sst-ipc.h" -#include "../common/sst-dsp-priv.h" -#include "skl.h" - -/* various timeout values */ -#define SKL_DSP_PU_TO 50 -#define SKL_DSP_PD_TO 50 -#define SKL_DSP_RESET_TO 50 - -void skl_dsp_set_state_locked(struct sst_dsp *ctx, int state) -{ - mutex_lock(&ctx->mutex); - ctx->sst_state = state; - mutex_unlock(&ctx->mutex); -} - -/* - * Initialize core power state and usage count. To be called after - * successful first boot. Hence core 0 will be running and other cores - * will be reset - */ -void skl_dsp_init_core_state(struct sst_dsp *ctx) -{ - struct skl_dev *skl = ctx->thread_context; - int i; - - skl->cores.state[SKL_DSP_CORE0_ID] = SKL_DSP_RUNNING; - skl->cores.usage_count[SKL_DSP_CORE0_ID] = 1; - - for (i = SKL_DSP_CORE0_ID + 1; i < skl->cores.count; i++) { - skl->cores.state[i] = SKL_DSP_RESET; - skl->cores.usage_count[i] = 0; - } -} - -/* Get the mask for all enabled cores */ -unsigned int skl_dsp_get_enabled_cores(struct sst_dsp *ctx) -{ - struct skl_dev *skl = ctx->thread_context; - unsigned int core_mask, en_cores_mask; - u32 val; - - core_mask = SKL_DSP_CORES_MASK(skl->cores.count); - - val = sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPCS); - - /* Cores having CPA bit set */ - en_cores_mask = (val & SKL_ADSPCS_CPA_MASK(core_mask)) >> - SKL_ADSPCS_CPA_SHIFT; - - /* And cores having CRST bit cleared */ - en_cores_mask &= (~val & SKL_ADSPCS_CRST_MASK(core_mask)) >> - SKL_ADSPCS_CRST_SHIFT; - - /* And cores having CSTALL bit cleared */ - en_cores_mask &= (~val & SKL_ADSPCS_CSTALL_MASK(core_mask)) >> - SKL_ADSPCS_CSTALL_SHIFT; - en_cores_mask &= core_mask; - - dev_dbg(ctx->dev, "DSP enabled cores mask = %x\n", en_cores_mask); - - return en_cores_mask; -} - -static int -skl_dsp_core_set_reset_state(struct sst_dsp *ctx, unsigned int core_mask) -{ - int ret; - - /* update bits */ - sst_dsp_shim_update_bits_unlocked(ctx, - SKL_ADSP_REG_ADSPCS, SKL_ADSPCS_CRST_MASK(core_mask), - SKL_ADSPCS_CRST_MASK(core_mask)); - - /* poll with timeout to check if operation successful */ - ret = sst_dsp_register_poll(ctx, - SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_CRST_MASK(core_mask), - SKL_ADSPCS_CRST_MASK(core_mask), - SKL_DSP_RESET_TO, - "Set reset"); - if ((sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPCS) & - SKL_ADSPCS_CRST_MASK(core_mask)) != - SKL_ADSPCS_CRST_MASK(core_mask)) { - dev_err(ctx->dev, "Set reset state failed: core_mask %x\n", - core_mask); - ret = -EIO; - } - - return ret; -} - -int skl_dsp_core_unset_reset_state( - struct sst_dsp *ctx, unsigned int core_mask) -{ - int ret; - - dev_dbg(ctx->dev, "In %s\n", __func__); - - /* update bits */ - sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_CRST_MASK(core_mask), 0); - - /* poll with timeout to check if operation successful */ - ret = sst_dsp_register_poll(ctx, - SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_CRST_MASK(core_mask), - 0, - SKL_DSP_RESET_TO, - "Unset reset"); - - if ((sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPCS) & - SKL_ADSPCS_CRST_MASK(core_mask)) != 0) { - dev_err(ctx->dev, "Unset reset state failed: core_mask %x\n", - core_mask); - ret = -EIO; - } - - return ret; -} - -static bool -is_skl_dsp_core_enable(struct sst_dsp *ctx, unsigned int core_mask) -{ - int val; - bool is_enable; - - val = sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPCS); - - is_enable = ((val & SKL_ADSPCS_CPA_MASK(core_mask)) && - (val & SKL_ADSPCS_SPA_MASK(core_mask)) && - !(val & SKL_ADSPCS_CRST_MASK(core_mask)) && - !(val & SKL_ADSPCS_CSTALL_MASK(core_mask))); - - dev_dbg(ctx->dev, "DSP core(s) enabled? %d : core_mask %x\n", - is_enable, core_mask); - - return is_enable; -} - -static int skl_dsp_reset_core(struct sst_dsp *ctx, unsigned int core_mask) -{ - /* stall core */ - sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_CSTALL_MASK(core_mask), - SKL_ADSPCS_CSTALL_MASK(core_mask)); - - /* set reset state */ - return skl_dsp_core_set_reset_state(ctx, core_mask); -} - -int skl_dsp_start_core(struct sst_dsp *ctx, unsigned int core_mask) -{ - int ret; - - /* unset reset state */ - ret = skl_dsp_core_unset_reset_state(ctx, core_mask); - if (ret < 0) - return ret; - - /* run core */ - dev_dbg(ctx->dev, "unstall/run core: core_mask = %x\n", core_mask); - sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_CSTALL_MASK(core_mask), 0); - - if (!is_skl_dsp_core_enable(ctx, core_mask)) { - skl_dsp_reset_core(ctx, core_mask); - dev_err(ctx->dev, "DSP start core failed: core_mask %x\n", - core_mask); - ret = -EIO; - } - - return ret; -} - -int skl_dsp_core_power_up(struct sst_dsp *ctx, unsigned int core_mask) -{ - int ret; - - /* update bits */ - sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_SPA_MASK(core_mask), - SKL_ADSPCS_SPA_MASK(core_mask)); - - /* poll with timeout to check if operation successful */ - ret = sst_dsp_register_poll(ctx, - SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_CPA_MASK(core_mask), - SKL_ADSPCS_CPA_MASK(core_mask), - SKL_DSP_PU_TO, - "Power up"); - - if ((sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPCS) & - SKL_ADSPCS_CPA_MASK(core_mask)) != - SKL_ADSPCS_CPA_MASK(core_mask)) { - dev_err(ctx->dev, "DSP core power up failed: core_mask %x\n", - core_mask); - ret = -EIO; - } - - return ret; -} - -int skl_dsp_core_power_down(struct sst_dsp *ctx, unsigned int core_mask) -{ - /* update bits */ - sst_dsp_shim_update_bits_unlocked(ctx, SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_SPA_MASK(core_mask), 0); - - /* poll with timeout to check if operation successful */ - return sst_dsp_register_poll(ctx, - SKL_ADSP_REG_ADSPCS, - SKL_ADSPCS_CPA_MASK(core_mask), - 0, - SKL_DSP_PD_TO, - "Power down"); -} - -int skl_dsp_enable_core(struct sst_dsp *ctx, unsigned int core_mask) -{ - int ret; - - /* power up */ - ret = skl_dsp_core_power_up(ctx, core_mask); - if (ret < 0) { - dev_err(ctx->dev, "dsp core power up failed: core_mask %x\n", - core_mask); - return ret; - } - - return skl_dsp_start_core(ctx, core_mask); -} - -int skl_dsp_disable_core(struct sst_dsp *ctx, unsigned int core_mask) -{ - int ret; - - ret = skl_dsp_reset_core(ctx, core_mask); - if (ret < 0) { - dev_err(ctx->dev, "dsp core reset failed: core_mask %x\n", - core_mask); - return ret; - } - - /* power down core*/ - ret = skl_dsp_core_power_down(ctx, core_mask); - if (ret < 0) { - dev_err(ctx->dev, "dsp core power down fail mask %x: %d\n", - core_mask, ret); - return ret; - } - - if (is_skl_dsp_core_enable(ctx, core_mask)) { - dev_err(ctx->dev, "dsp core disable fail mask %x: %d\n", - core_mask, ret); - ret = -EIO; - } - - return ret; -} - -int skl_dsp_boot(struct sst_dsp *ctx) -{ - int ret; - - if (is_skl_dsp_core_enable(ctx, SKL_DSP_CORE0_MASK)) { - ret = skl_dsp_reset_core(ctx, SKL_DSP_CORE0_MASK); - if (ret < 0) { - dev_err(ctx->dev, "dsp core0 reset fail: %d\n", ret); - return ret; - } - - ret = skl_dsp_start_core(ctx, SKL_DSP_CORE0_MASK); - if (ret < 0) { - dev_err(ctx->dev, "dsp core0 start fail: %d\n", ret); - return ret; - } - } else { - ret = skl_dsp_disable_core(ctx, SKL_DSP_CORE0_MASK); - if (ret < 0) { - dev_err(ctx->dev, "dsp core0 disable fail: %d\n", ret); - return ret; - } - ret = skl_dsp_enable_core(ctx, SKL_DSP_CORE0_MASK); - } - - return ret; -} - -irqreturn_t skl_dsp_sst_interrupt(int irq, void *dev_id) -{ - struct sst_dsp *ctx = dev_id; - u32 val; - irqreturn_t result = IRQ_NONE; - - spin_lock(&ctx->spinlock); - - val = sst_dsp_shim_read_unlocked(ctx, SKL_ADSP_REG_ADSPIS); - ctx->intr_status = val; - - if (val == 0xffffffff) { - spin_unlock(&ctx->spinlock); - return IRQ_NONE; - } - - if (val & SKL_ADSPIS_IPC) { - skl_ipc_int_disable(ctx); - result = IRQ_WAKE_THREAD; - } - - if (val & SKL_ADSPIS_CL_DMA) { - skl_cldma_int_disable(ctx); - result = IRQ_WAKE_THREAD; - } - - spin_unlock(&ctx->spinlock); - - return result; -} -/* - * skl_dsp_get_core/skl_dsp_put_core will be called inside DAPM context - * within the dapm mutex. Hence no separate lock is used. - */ -int skl_dsp_get_core(struct sst_dsp *ctx, unsigned int core_id) -{ - struct skl_dev *skl = ctx->thread_context; - int ret = 0; - - if (core_id >= skl->cores.count) { - dev_err(ctx->dev, "invalid core id: %d\n", core_id); - return -EINVAL; - } - - skl->cores.usage_count[core_id]++; - - if (skl->cores.state[core_id] == SKL_DSP_RESET) { - ret = ctx->fw_ops.set_state_D0(ctx, core_id); - if (ret < 0) { - dev_err(ctx->dev, "unable to get core%d\n", core_id); - goto out; - } - } - -out: - dev_dbg(ctx->dev, "core id %d state %d usage_count %d\n", - core_id, skl->cores.state[core_id], - skl->cores.usage_count[core_id]); - - return ret; -} -EXPORT_SYMBOL_GPL(skl_dsp_get_core); - -int skl_dsp_put_core(struct sst_dsp *ctx, unsigned int core_id) -{ - struct skl_dev *skl = ctx->thread_context; - int ret = 0; - - if (core_id >= skl->cores.count) { - dev_err(ctx->dev, "invalid core id: %d\n", core_id); - return -EINVAL; - } - - if ((--skl->cores.usage_count[core_id] == 0) && - (skl->cores.state[core_id] != SKL_DSP_RESET)) { - ret = ctx->fw_ops.set_state_D3(ctx, core_id); - if (ret < 0) { - dev_err(ctx->dev, "unable to put core %d: %d\n", - core_id, ret); - skl->cores.usage_count[core_id]++; - } - } - - dev_dbg(ctx->dev, "core id %d state %d usage_count %d\n", - core_id, skl->cores.state[core_id], - skl->cores.usage_count[core_id]); - - return ret; -} -EXPORT_SYMBOL_GPL(skl_dsp_put_core); - -int skl_dsp_wake(struct sst_dsp *ctx) -{ - return skl_dsp_get_core(ctx, SKL_DSP_CORE0_ID); -} -EXPORT_SYMBOL_GPL(skl_dsp_wake); - -int skl_dsp_sleep(struct sst_dsp *ctx) -{ - return skl_dsp_put_core(ctx, SKL_DSP_CORE0_ID); -} -EXPORT_SYMBOL_GPL(skl_dsp_sleep); - -struct sst_dsp *skl_dsp_ctx_init(struct device *dev, - struct sst_dsp_device *sst_dev, int irq) -{ - int ret; - struct sst_dsp *sst; - - sst = devm_kzalloc(dev, sizeof(*sst), GFP_KERNEL); - if (sst == NULL) - return NULL; - - spin_lock_init(&sst->spinlock); - mutex_init(&sst->mutex); - sst->dev = dev; - sst->sst_dev = sst_dev; - sst->irq = irq; - sst->ops = sst_dev->ops; - sst->thread_context = sst_dev->thread_context; - - /* Initialise SST Audio DSP */ - if (sst->ops->init) { - ret = sst->ops->init(sst); - if (ret < 0) - return NULL; - } - - return sst; -} - -int skl_dsp_acquire_irq(struct sst_dsp *sst) -{ - struct sst_dsp_device *sst_dev = sst->sst_dev; - int ret; - - /* Register the ISR */ - ret = request_threaded_irq(sst->irq, sst->ops->irq_handler, - sst_dev->thread, IRQF_SHARED, "AudioDSP", sst); - if (ret) - dev_err(sst->dev, "unable to grab threaded IRQ %d, disabling device\n", - sst->irq); - - return ret; -} - -void skl_dsp_free(struct sst_dsp *dsp) -{ - skl_ipc_int_disable(dsp); - - free_irq(dsp->irq, dsp); - skl_ipc_op_int_disable(dsp); - skl_dsp_disable_core(dsp, SKL_DSP_CORE0_MASK); -} -EXPORT_SYMBOL_GPL(skl_dsp_free); - -bool is_skl_dsp_running(struct sst_dsp *ctx) -{ - return (ctx->sst_state == SKL_DSP_RUNNING); -} -EXPORT_SYMBOL_GPL(is_skl_dsp_running); |