diff --git a/include/sound/hdaudio.h b/include/sound/hdaudio.h index a73d7f34f4e545..85d2c3d00a2719 100644 --- a/include/sound/hdaudio.h +++ b/include/sound/hdaudio.h @@ -351,6 +351,7 @@ struct hdac_bus { bool needs_damn_long_delay:1; bool not_use_interrupts:1; /* prohibiting the RIRB IRQ */ bool access_sdnctl_in_dword:1; /* accessing the sdnctl register by dword */ + bool use_pio_for_commands:1; /* Use PIO instead of CORB for commands */ int poll_count; diff --git a/sound/hda/hdac_controller.c b/sound/hda/hdac_controller.c index 7f3a000fab0ce0..b5c833b9f8b9ca 100644 --- a/sound/hda/hdac_controller.c +++ b/sound/hda/hdac_controller.c @@ -62,7 +62,8 @@ void snd_hdac_bus_init_cmd_io(struct hdac_bus *bus) azx_clear_corbrp(bus); /* enable corb dma */ - snd_hdac_chip_writeb(bus, CORBCTL, AZX_CORBCTL_RUN); + if (!bus->use_pio_for_commands) + snd_hdac_chip_writeb(bus, CORBCTL, AZX_CORBCTL_RUN); /* RIRB set up */ bus->rirb.addr = bus->rb.addr + 2048; @@ -135,14 +136,94 @@ static unsigned int azx_command_addr(u32 cmd) return addr; } +/* receive an Immediate Response with PIO */ +static int snd_hdac_bus_wait_for_pio_response(struct hdac_bus *bus, + unsigned int addr) +{ + int timeout = 50; + + while (timeout--) { + /* check IRV bit */ + if (snd_hdac_chip_readw(bus, IRS) & AZX_IRS_VALID) { + /* reuse rirb.res as the response return value */ + bus->rirb.res[addr] = snd_hdac_chip_readl(bus, IR); + return 0; + } + udelay(1); + } + + dev_dbg_ratelimited(bus->dev, "get_response_pio timeout: IRS=%#x\n", + snd_hdac_chip_readw(bus, IRS)); + + bus->rirb.res[addr] = -1; + + return -EIO; +} + /** - * snd_hdac_bus_send_cmd - send a command verb via CORB + * snd_hdac_bus_send_cmd_pio - send a command verb via Immediate Command * @bus: HD-audio core bus * @val: encoded verb value to send * * Returns zero for success or a negative error code. */ -int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val) +static int snd_hdac_bus_send_cmd_pio(struct hdac_bus *bus, unsigned int val) +{ + unsigned int addr = azx_command_addr(val); + int timeout = 50; + int ret = -EIO; + + spin_lock_irq(&bus->reg_lock); + + while (timeout--) { + /* check ICB bit */ + if (!((snd_hdac_chip_readw(bus, IRS) & AZX_IRS_BUSY))) { + /* Clear IRV bit */ + snd_hdac_chip_updatew(bus, IRS, AZX_IRS_VALID, AZX_IRS_VALID); + snd_hdac_chip_writel(bus, IC, val); + /* Set ICB bit */ + snd_hdac_chip_updatew(bus, IRS, AZX_IRS_BUSY, AZX_IRS_BUSY); + + ret = snd_hdac_bus_wait_for_pio_response(bus, addr); + goto out; + } + udelay(1); + } + + dev_dbg_ratelimited(bus->dev, "send_cmd_pio timeout: IRS=%#x, val=%#x\n", + snd_hdac_chip_readw(bus, IRS), val); + +out: + spin_unlock_irq(&bus->reg_lock); + + return ret; +} + +/** + * snd_hdac_bus_get_response_pio - receive a response via Immediate Response + * @bus: HD-audio core bus + * @addr: codec address + * @res: pointer to store the value, NULL when not needed + * + * Returns zero if a value is read, or a negative error code. + */ +static int snd_hdac_bus_get_response_pio(struct hdac_bus *bus, + unsigned int addr, unsigned int *res) +{ + if (res) + *res = bus->rirb.res[addr]; + + return 0; +} + +/** + * snd_hdac_bus_send_cmd_corb - send a command verb via CORB + * @bus: HD-audio core bus + * @val: encoded verb value to send + * + * Returns zero for success or a negative error code. + */ +static int snd_hdac_bus_send_cmd_corb(struct hdac_bus *bus, unsigned int val) { unsigned int addr = azx_command_addr(val); unsigned int wp, rp; @@ -176,7 +257,6 @@ int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val) return 0; } -EXPORT_SYMBOL_GPL(snd_hdac_bus_send_cmd); #define AZX_RIRB_EX_UNSOL_EV (1<<4) @@ -234,15 +314,15 @@ void snd_hdac_bus_update_rirb(struct hdac_bus *bus) EXPORT_SYMBOL_GPL(snd_hdac_bus_update_rirb); /** - * snd_hdac_bus_get_response - receive a response via RIRB + * snd_hdac_bus_get_response_rirb - receive a response via RIRB * @bus: HD-audio core bus * @addr: codec address * @res: pointer to store the value, NULL when not needed * * Returns zero if a value is read, or a negative error code. */ -int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr, - unsigned int *res) +static int snd_hdac_bus_get_response_rirb(struct hdac_bus *bus, + unsigned int addr, unsigned int *res) { unsigned long timeout; unsigned long loopcounter; @@ -293,6 +373,39 @@ int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr, return -EIO; } + +/** + * snd_hdac_bus_send_cmd - send a command verb via CORB or PIO + * @bus: HD-audio core bus + * @val: encoded verb value to send + * + * Returns zero for success or a negative error code. + */ +int snd_hdac_bus_send_cmd(struct hdac_bus *bus, unsigned int val) +{ + if (bus->use_pio_for_commands) + return snd_hdac_bus_send_cmd_pio(bus, val); + + return snd_hdac_bus_send_cmd_corb(bus, val); +} +EXPORT_SYMBOL_GPL(snd_hdac_bus_send_cmd); + +/** + * snd_hdac_bus_get_response - receive a response via RIRB or PIO + * @bus: HD-audio core bus + * @addr: codec address + * @res: pointer to store the value, NULL when not needed + * + * Returns zero if a value is read, or a negative error code. + */ +int snd_hdac_bus_get_response(struct hdac_bus *bus, unsigned int addr, + unsigned int *res) +{ + if (bus->use_pio_for_commands) + return snd_hdac_bus_get_response_pio(bus, addr, res); + + return snd_hdac_bus_get_response_rirb(bus, addr, res); +} EXPORT_SYMBOL_GPL(snd_hdac_bus_get_response); #define HDAC_MAX_CAPS 10 diff --git a/sound/pci/hda/hda_controller.c b/sound/pci/hda/hda_controller.c index 3e7bfeee84fdad..5a3c3f8346d1cd 100644 --- a/sound/pci/hda/hda_controller.c +++ b/sound/pci/hda/hda_controller.c @@ -906,7 +906,7 @@ static int azx_send_cmd(struct hdac_bus *bus, unsigned int val) if (chip->disabled) return 0; - if (chip->single_cmd) + if (chip->single_cmd || bus->use_pio_for_commands) return azx_single_send_cmd(bus, val); else return snd_hdac_bus_send_cmd(bus, val); @@ -920,7 +920,7 @@ static int azx_get_response(struct hdac_bus *bus, unsigned int addr, if (chip->disabled) return 0; - if (chip->single_cmd) + if (chip->single_cmd || bus->use_pio_for_commands) return azx_single_get_response(bus, addr, res); else return azx_rirb_get_response(bus, addr, res); @@ -1180,6 +1180,9 @@ int azx_bus_init(struct azx *chip, const char *model) if (chip->driver_caps & AZX_DCAPS_4K_BDLE_BOUNDARY) bus->core.align_bdle_4k = true; + if (chip->driver_caps & AZX_DCAPS_PIO_COMMANDS) + bus->core.use_pio_for_commands = true; + /* enable sync_write flag for stable communication as default */ bus->core.sync_write = 1; diff --git a/sound/pci/hda/hda_controller.h b/sound/pci/hda/hda_controller.h index 8556031bcd68e4..c2d0109866e62e 100644 --- a/sound/pci/hda/hda_controller.h +++ b/sound/pci/hda/hda_controller.h @@ -45,6 +45,7 @@ #define AZX_DCAPS_CORBRP_SELF_CLEAR (1 << 28) /* CORBRP clears itself after reset */ #define AZX_DCAPS_NO_MSI64 (1 << 29) /* Stick to 32-bit MSIs */ #define AZX_DCAPS_SEPARATE_STREAM_TAG (1 << 30) /* capture and playback use separate stream tag */ +#define AZX_DCAPS_PIO_COMMANDS (1 << 31) /* Use PIO instead of CORB for commands */ enum { AZX_SNOOP_TYPE_NONE, diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c index 1b550c42db0927..6a3022a87245aa 100644 --- a/sound/pci/hda/hda_intel.c +++ b/sound/pci/hda/hda_intel.c @@ -289,6 +289,9 @@ enum { #define AZX_DCAPS_INTEL_BROXTON AZX_DCAPS_INTEL_SKYLAKE +#define AZX_DCAPS_INTEL_LNL \ + (AZX_DCAPS_INTEL_SKYLAKE | AZX_DCAPS_PIO_COMMANDS) + /* quirks for ATI SB / AMD Hudson */ #define AZX_DCAPS_PRESET_ATI_SB \ (AZX_DCAPS_NO_TCSEL | AZX_DCAPS_POSFIX_LPIB |\ @@ -2503,7 +2506,7 @@ static const struct pci_device_id azx_ids[] = { { PCI_DEVICE_DATA(INTEL, HDA_RPL_PX, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) }, { PCI_DEVICE_DATA(INTEL, HDA_MTL, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) }, /* Lunarlake-P */ - { PCI_DEVICE_DATA(INTEL, HDA_LNL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) }, + { PCI_DEVICE_DATA(INTEL, HDA_LNL_P, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_LNL) }, /* Arrow Lake-S */ { PCI_DEVICE_DATA(INTEL, HDA_ARL_S, AZX_DRIVER_SKL | AZX_DCAPS_INTEL_SKYLAKE) }, /* Arrow Lake */ diff --git a/sound/soc/sof/intel/hda-bus.c b/sound/soc/sof/intel/hda-bus.c index e9f65386e4806e..292fd334330b0f 100644 --- a/sound/soc/sof/intel/hda-bus.c +++ b/sound/soc/sof/intel/hda-bus.c @@ -72,7 +72,12 @@ void sof_hda_bus_init(struct snd_sof_dev *sdev, struct device *dev) #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_LINK) #if IS_ENABLED(CONFIG_SND_SOC_SOF_HDA_AUDIO_CODEC) + const struct sof_intel_dsp_desc *chip = get_chip_info(sdev->pdata); + snd_hdac_ext_bus_init(bus, dev, &bus_core_ops, sof_hda_ext_ops); + + if (chip && chip->hw_ip_version == SOF_INTEL_ACE_2_0) + bus->use_pio_for_commands = true; #else snd_hdac_ext_bus_init(bus, dev, NULL, NULL); #endif