The patch
ASoC: SOF: Intel: CNL: add support for sending compact IPC
has been applied to the asoc tree at
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-5.5
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
From 0267de58acfe5059ace739741f1533dd605ed22f Mon Sep 17 00:00:00 2001
From: Keyon Jie yang.jie@linux.intel.com Date: Fri, 25 Oct 2019 17:41:14 -0500 Subject: [PATCH] ASoC: SOF: Intel: CNL: add support for sending compact IPC
For compact IPCs, we will send the IPC header/command via the HIPCIDR register and the first 32bit payload via the HIPCIDD register, no mailbox will be used.
Signed-off-by: Keyon Jie yang.jie@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com Link: https://lore.kernel.org/r/20191025224122.7718-19-pierre-louis.bossart@linux.... Signed-off-by: Mark Brown broonie@kernel.org --- sound/soc/sof/intel/cnl.c | 42 ++++++++++++++++++++++++++++++++++----- sound/soc/sof/intel/hda.h | 1 + 2 files changed, 38 insertions(+), 5 deletions(-)
diff --git a/sound/soc/sof/intel/cnl.c b/sound/soc/sof/intel/cnl.c index 982b81a0b13a..0e1e265f3f3b 100644 --- a/sound/soc/sof/intel/cnl.c +++ b/sound/soc/sof/intel/cnl.c @@ -17,6 +17,7 @@
#include "../ops.h" #include "hda.h" +#include "hda-ipc.h"
static const struct snd_sof_debugfs_map cnl_dsp_debugfs[] = { {"hda", HDA_DSP_HDA_BAR, 0, 0x4000, SOF_DEBUGFS_ACCESS_ALWAYS}, @@ -150,14 +151,45 @@ static void cnl_ipc_dsp_done(struct snd_sof_dev *sdev) CNL_DSP_REG_HIPCCTL_DONE); }
+static bool cnl_compact_ipc_compress(struct snd_sof_ipc_msg *msg, + u32 *dr, u32 *dd) +{ + struct sof_ipc_pm_gate *pm_gate; + + if (msg->header == (SOF_IPC_GLB_PM_MSG | SOF_IPC_PM_GATE)) { + pm_gate = msg->msg_data; + + /* send the compact message via the primary register */ + *dr = HDA_IPC_MSG_COMPACT | HDA_IPC_PM_GATE; + + /* send payload via the extended data register */ + *dd = pm_gate->flags; + + return true; + } + + return false; +} + static int cnl_ipc_send_msg(struct snd_sof_dev *sdev, struct snd_sof_ipc_msg *msg) { - /* send the message */ - sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data, - msg->msg_size); - snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, - CNL_DSP_REG_HIPCIDR_BUSY); + u32 dr = 0; + u32 dd = 0; + + if (cnl_compact_ipc_compress(msg, &dr, &dd)) { + /* send the message via IPC registers */ + snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDD, + dd); + snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, + CNL_DSP_REG_HIPCIDR_BUSY | dr); + } else { + /* send the message via mailbox */ + sof_mailbox_write(sdev, sdev->host_box.offset, msg->msg_data, + msg->msg_size); + snd_sof_dsp_write(sdev, HDA_DSP_BAR, CNL_DSP_REG_HIPCIDR, + CNL_DSP_REG_HIPCIDR_BUSY); + }
return 0; } diff --git a/sound/soc/sof/intel/hda.h b/sound/soc/sof/intel/hda.h index 99ec60218c16..52a87a47029d 100644 --- a/sound/soc/sof/intel/hda.h +++ b/sound/soc/sof/intel/hda.h @@ -312,6 +312,7 @@ #define CNL_DSP_REG_HIPCTDD (CNL_DSP_IPC_BASE + 0x08) #define CNL_DSP_REG_HIPCIDR (CNL_DSP_IPC_BASE + 0x10) #define CNL_DSP_REG_HIPCIDA (CNL_DSP_IPC_BASE + 0x14) +#define CNL_DSP_REG_HIPCIDD (CNL_DSP_IPC_BASE + 0x18) #define CNL_DSP_REG_HIPCCTL (CNL_DSP_IPC_BASE + 0x28)
/* HIPCI */