From: Keyon Jie yang.jie@linux.intel.com
Add flag _IGNORE_D3_PERSISTENT to disable IMR restore feature to the sof_debug module parameter.
The IMR restore feature will be enabled for all Intel cAVS platforms by default, but setting the flag _IGNORE_D3_PERSISTENT can help to disable the feature for debug purpose, to rule out any possible regression introduced by the change of not re-downloading firmware to the DSP at resuming from suspended state.
Reviewed-by: Ranjani Sridharan ranjani.sridharan@linux.intel.com Reviewed-by: Péter Ujfalusi peter.ujfalusi@linux.intel.com Signed-off-by: Keyon Jie yang.jie@linux.intel.com Signed-off-by: Pierre-Louis Bossart pierre-louis.bossart@linux.intel.com --- sound/soc/sof/intel/hda-loader.c | 2 ++ sound/soc/sof/sof-priv.h | 3 +++ 2 files changed, 5 insertions(+)
diff --git a/sound/soc/sof/intel/hda-loader.c b/sound/soc/sof/intel/hda-loader.c index baf2ff146f50..6af3325b7e40 100644 --- a/sound/soc/sof/intel/hda-loader.c +++ b/sound/soc/sof/intel/hda-loader.c @@ -21,6 +21,7 @@ #include <sound/sof.h> #include "ext_manifest.h" #include "../ops.h" +#include "../sof-priv.h" #include "hda.h"
#define HDA_CL_STREAM_FORMAT 0x40 @@ -396,6 +397,7 @@ int hda_dsp_cl_boot_firmware(struct snd_sof_dev *sdev) int ret, ret1, i;
if ((sdev->fw_ready.flags & SOF_IPC_INFO_D3_PERSISTENT) && + !(sof_debug_check_flag(SOF_DBG_IGNORE_D3_PERSISTENT)) && !sdev->first_boot) { dev_dbg(sdev->dev, "IMR restore supported, booting from IMR directly\n"); return hda_dsp_boot_imr(sdev); diff --git a/sound/soc/sof/sof-priv.h b/sound/soc/sof/sof-priv.h index 087935192ce8..29bb56b7267a 100644 --- a/sound/soc/sof/sof-priv.h +++ b/sound/soc/sof/sof-priv.h @@ -34,6 +34,9 @@ * on primary core */ #define SOF_DBG_PRINT_ALL_DUMPS BIT(6) /* Print all ipc and dsp dumps */ +#define SOF_DBG_IGNORE_D3_PERSISTENT BIT(7) /* ignore the DSP D3 persistent capability + * and always download firmware upon D3 exit + */
/* Flag definitions used for controlling the DSP dump behavior */ #define SOF_DBG_DUMP_REGS BIT(0)