// SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause)//// This file is provided under a dual BSD/GPLv2 license.  When using or// redistributing this file, you may do so under either license.//// Copyright(c) 2018 Intel Corporation//// Author: Liam Girdwood <liam.r.girdwood@linux.intel.com>// #include <linux/pci.h>#include "ops.h" staticbool snd_sof_pci_update_bits_unlocked(struct snd_sof_dev *sdev, u32 offset,				      u32 mask, u32 value){	struct pci_dev *pci = to_pci_dev(sdev->dev);	unsigned int old, new;	u32 ret = 0; 	pci_read_config_dword(pci, offset, &ret);	old = ret;	dev_dbg(sdev->dev, "Debug PCIR: %8.8x at  %8.8x\n", old & mask, offset); 	new = (old & ~mask) | (value & mask); 	if (old == new)		return false; 	pci_write_config_dword(pci, offset, new);	dev_dbg(sdev->dev, "Debug PCIW: %8.8x at  %8.8x\n", value,		offset); 	return true;} bool snd_sof_pci_update_bits(struct snd_sof_dev *sdev, u32 offset,			     u32 mask, u32 value){	guard(spinlock_irqsave)(&sdev->hw_lock);	return snd_sof_pci_update_bits_unlocked(sdev, offset, mask, value);}EXPORT_SYMBOL(snd_sof_pci_update_bits); bool snd_sof_dsp_update_bits_unlocked(struct snd_sof_dev *sdev, u32 bar,				      u32 offset, u32 mask, u32 value){	unsigned int old, new;	u32 ret; 	ret = snd_sof_dsp_read(sdev, bar, offset); 	old = ret;	new = (old & ~mask) | (value & mask); 	if (old == new)		return false; 	snd_sof_dsp_write(sdev, bar, offset, new); 	return true;}EXPORT_SYMBOL(snd_sof_dsp_update_bits_unlocked); bool snd_sof_dsp_update_bits64_unlocked(struct snd_sof_dev *sdev, u32 bar,					u32 offset, u64 mask, u64 value){	u64 old, new; 	old = snd_sof_dsp_read64(sdev, bar, offset); 	new = (old & ~mask) | (value & mask); 	if (old == new)		return false; 	snd_sof_dsp_write64(sdev, bar, offset, new); 	return true;}EXPORT_SYMBOL(snd_sof_dsp_update_bits64_unlocked); /* This is for registers bits with attribute RWC */bool snd_sof_dsp_update_bits(struct snd_sof_dev *sdev, u32 bar, u32 offset,			     u32 mask, u32 value){	guard(spinlock_irqsave)(&sdev->hw_lock);	return snd_sof_dsp_update_bits_unlocked(sdev, bar, offset, mask, value);}EXPORT_SYMBOL(snd_sof_dsp_update_bits); bool snd_sof_dsp_update_bits64(struct snd_sof_dev *sdev, u32 bar, u32 offset,			       u64 mask, u64 value){	guard(spinlock_irqsave)(&sdev->hw_lock);	return snd_sof_dsp_update_bits64_unlocked(sdev, bar, offset, mask, value);}EXPORT_SYMBOL(snd_sof_dsp_update_bits64); staticvoid snd_sof_dsp_update_bits_forced_unlocked(struct snd_sof_dev *sdev, u32 bar,					     u32 offset, u32 mask, u32 value){	unsigned int old, new;	u32 ret; 	ret = snd_sof_dsp_read(sdev, bar, offset); 	old = ret;	new = (old & ~mask) | (value & mask); 	snd_sof_dsp_write(sdev, bar, offset, new);} /* This is for registers bits with attribute RWC */void snd_sof_dsp_update_bits_forced(struct snd_sof_dev *sdev, u32 bar,				    u32 offset, u32 mask, u32 value){	guard(spinlock_irqsave)(&sdev->hw_lock);	snd_sof_dsp_update_bits_forced_unlocked(sdev, bar, offset, mask, value);}EXPORT_SYMBOL(snd_sof_dsp_update_bits_forced); /** * snd_sof_dsp_panic - handle a received DSP panic message * @sdev: Pointer to the device's sdev * @offset: offset of panic information * @non_recoverable: the panic is fatal, no recovery will be done by the caller */void snd_sof_dsp_panic(struct snd_sof_dev *sdev, u32 offset, bool non_recoverable){	/*	 * if DSP is not ready and the dsp_oops_offset is not yet set, use the	 * offset from the panic message.	 */	if (!sdev->dsp_oops_offset)		sdev->dsp_oops_offset = offset; 	/*	 * Print warning if the offset from the panic message differs from	 * dsp_oops_offset	 */	if (sdev->dsp_oops_offset != offset)		dev_warn(sdev->dev,			 "%s: dsp_oops_offset %zu differs from panic offset %u\n",			 __func__, sdev->dsp_oops_offset, offset); 	/*	 * Set the fw_state to crashed only in case of non recoverable DSP panic	 * event.	 * Use different message within the snd_sof_dsp_dbg_dump() depending on	 * the non_recoverable flag.	 */	sdev->dbg_dump_printed = false;	if (non_recoverable) {		snd_sof_dsp_dbg_dump(sdev, "DSP panic!",				     SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX);		sof_set_fw_state(sdev, SOF_FW_CRASHED);		sof_fw_trace_fw_crashed(sdev);	} else {		snd_sof_dsp_dbg_dump(sdev,				     "DSP panic (recovery will be attempted)",				     SOF_DBG_DUMP_REGS | SOF_DBG_DUMP_MBOX);	}}EXPORT_SYMBOL(snd_sof_dsp_panic);