From b9a3ec604993074eb6f5d08b14fb7913d1fae48b Mon Sep 17 00:00:00 2001 From: Cezary Rojewski Date: Mon, 7 Apr 2025 13:23:45 +0200 Subject: [PATCH] ASoC: Intel: avs: Read HW capabilities when possible MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Starting with LunarLake (LNL) and onward, some hardware capabilities are visible to the sound driver directly. At the same time, these may no longer be visible to the AudioDSP firmware. Update resource allocation function to rely on the registers when possible. Reviewed-by: Amadeusz Sławiński Signed-off-by: Cezary Rojewski Acked-by: Liam Girdwood Link: https://patch.msgid.link/20250407112352.3720779-4-cezary.rojewski@intel.com Signed-off-by: Mark Brown --- include/sound/hdaudio_ext.h | 1 + sound/hda/ext/hdac_ext_controller.c | 1 + sound/soc/intel/avs/avs.h | 1 + sound/soc/intel/avs/loader.c | 9 +++++++++ 4 files changed, 12 insertions(+) diff --git a/include/sound/hdaudio_ext.h b/include/sound/hdaudio_ext.h index 60ec12e3b72f8..7de390022ac26 100644 --- a/include/sound/hdaudio_ext.h +++ b/include/sound/hdaudio_ext.h @@ -99,6 +99,7 @@ struct hdac_ext_link { u32 lcaps; /* link capablities */ u16 lsdiid; /* link sdi identifier */ u32 id; + u8 slcount; int ref_count; diff --git a/sound/hda/ext/hdac_ext_controller.c b/sound/hda/ext/hdac_ext_controller.c index 2ec1531d1c1b5..c84754434d162 100644 --- a/sound/hda/ext/hdac_ext_controller.c +++ b/sound/hda/ext/hdac_ext_controller.c @@ -98,6 +98,7 @@ int snd_hdac_ext_bus_get_ml_capabilities(struct hdac_bus *bus) (AZX_ML_INTERVAL * idx); hlink->lcaps = readl(hlink->ml_addr + AZX_REG_ML_LCAP); hlink->lsdiid = readw(hlink->ml_addr + AZX_REG_ML_LSDIID); + hlink->slcount = FIELD_GET(AZX_ML_HDA_LCAP_SLCOUNT, hlink->lcaps) + 1; if (hdac_ext_link_alt(hlink)) { leptr = readl(hlink->ml_addr + AZX_REG_ML_LEPTR); diff --git a/sound/soc/intel/avs/avs.h b/sound/soc/intel/avs/avs.h index 91872d1df97a5..201897c5bdc04 100644 --- a/sound/soc/intel/avs/avs.h +++ b/sound/soc/intel/avs/avs.h @@ -73,6 +73,7 @@ extern const struct avs_dsp_ops avs_tgl_dsp_ops; #define AVS_PLATATTR_CLDMA BIT_ULL(0) #define AVS_PLATATTR_IMR BIT_ULL(1) #define AVS_PLATATTR_ACE BIT_ULL(2) +#define AVS_PLATATTR_ALTHDA BIT_ULL(3) #define avs_platattr_test(adev, attr) \ ((adev)->spec->attributes & AVS_PLATATTR_##attr) diff --git a/sound/soc/intel/avs/loader.c b/sound/soc/intel/avs/loader.c index 0b29941feb0ef..ecf050c2c0c7f 100644 --- a/sound/soc/intel/avs/loader.c +++ b/sound/soc/intel/avs/loader.c @@ -683,6 +683,7 @@ int avs_dsp_boot_firmware(struct avs_dev *adev, bool purge) static int avs_dsp_alloc_resources(struct avs_dev *adev) { + struct hdac_ext_link *link; int ret, i; ret = avs_ipc_get_hw_config(adev, &adev->hw_cfg); @@ -693,6 +694,14 @@ static int avs_dsp_alloc_resources(struct avs_dev *adev) if (ret) return AVS_IPC_RET(ret); + /* If hw allows, read capabilities directly from it. */ + if (avs_platattr_test(adev, ALTHDA)) { + link = snd_hdac_ext_bus_get_hlink_by_id(&adev->base.core, + AZX_REG_ML_LEPTR_ID_INTEL_SSP); + if (link) + adev->hw_cfg.i2s_caps.ctrl_count = link->slcount; + } + adev->core_refs = devm_kcalloc(adev->dev, adev->hw_cfg.dsp_cores, sizeof(*adev->core_refs), GFP_KERNEL); adev->lib_names = devm_kcalloc(adev->dev, adev->fw_cfg.max_libs_count, -- 2.50.1