[alsa-devel] [PATCH v3 0/2] ASoC: Intel: Skylake: Driver updates on DSP firmware
From: Jeeja KP jeeja.kp@intel.com
This patch series provides update on DSP firmware download by optimizing o updating the dsp register poll method to use accurate timeout. o optimizing ROM init retries. o saving the firmware/library context at boot and use this ctx for downloading the firmware to DSP memory. o cleanup to store the library manifest data o release the firmware in cleanup routine.
Changes in v2: - fixed the title to reflect the change as this is optimization. - removed already merged 4 patchs
Changes in v3: - rebased on branch topic/intel latest
Jeeja KP (2): ASoC: Intel: bxtn: Store the FW/Library context at boot ASoC: Intel: bxtn: optimize ROM init retries
sound/soc/intel/skylake/bxt-sst.c | 82 +++++++++++++++++++++++++-------------- 1 file changed, 52 insertions(+), 30 deletions(-)
From: Jeeja KP jeeja.kp@intel.com
Store the DSP firmware/library at boot, so that for S3 to S0 transition use the stored ctx for downloading the firmware to DSP memory.
Signed-off-by: Jeeja KP jeeja.kp@intel.com --- sound/soc/intel/skylake/bxt-sst.c | 55 +++++++++++++++++++++++++-------------- 1 file changed, 36 insertions(+), 19 deletions(-)
diff --git a/sound/soc/intel/skylake/bxt-sst.c b/sound/soc/intel/skylake/bxt-sst.c index 15a063a..7762d5a 100644 --- a/sound/soc/intel/skylake/bxt-sst.c +++ b/sound/soc/intel/skylake/bxt-sst.c @@ -50,33 +50,47 @@ static unsigned int bxt_get_errorcode(struct sst_dsp *ctx) return sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE); }
+static void sst_bxt_release_library(struct skl_lib_info *linfo, int lib_count) +{ + int i; + + for (i = 1; i < lib_count; i++) { + if (linfo[i].fw) { + release_firmware(linfo[i].fw); + linfo[i].fw = NULL; + } + } +} + static int bxt_load_library(struct sst_dsp *ctx, struct skl_lib_info *linfo, int lib_count) { struct snd_dma_buffer dmab; struct skl_sst *skl = ctx->thread_context; - const struct firmware *fw = NULL; struct firmware stripped_fw; int ret = 0, i, dma_id, stream_tag;
/* library indices start from 1 to N. 0 represents base FW */ for (i = 1; i < lib_count; i++) { - ret = request_firmware(&fw, linfo[i].name, ctx->dev); - if (ret < 0) { - dev_err(ctx->dev, "Request lib %s failed:%d\n", + if (linfo[i].fw == NULL) { + ret = request_firmware(&linfo[i].fw, linfo[i].name, + ctx->dev); + if (ret < 0) { + dev_err(ctx->dev, "Request lib %s failed:%d\n", linfo[i].name, ret); - return ret; + goto load_library_failed; + } }
if (skl->is_first_boot) { - ret = snd_skl_parse_uuids(ctx, fw, + ret = snd_skl_parse_uuids(ctx, linfo[i].fw, BXT_ADSP_FW_BIN_HDR_OFFSET, i); if (ret < 0) goto load_library_failed; }
- stripped_fw.data = fw->data; - stripped_fw.size = fw->size; + stripped_fw.data = linfo[i].fw->data; + stripped_fw.size = linfo[i].fw->size; skl_dsp_strip_extended_manifest(&stripped_fw);
stream_tag = ctx->dsp_ops.prepare(ctx->dev, 0x40, @@ -99,14 +113,12 @@ bxt_load_library(struct sst_dsp *ctx, struct skl_lib_info *linfo, int lib_count)
ctx->dsp_ops.trigger(ctx->dev, false, stream_tag); ctx->dsp_ops.cleanup(ctx->dev, &dmab, stream_tag); - release_firmware(fw); - fw = NULL; }
return ret;
load_library_failed: - release_firmware(fw); + sst_bxt_release_library(linfo, lib_count); return ret; }
@@ -208,16 +220,14 @@ static int bxt_load_base_firmware(struct sst_dsp *ctx) struct skl_sst *skl = ctx->thread_context; int ret;
- ret = request_firmware(&ctx->fw, ctx->fw_name, ctx->dev); - if (ret < 0) { - dev_err(ctx->dev, "Request firmware failed %d\n", ret); - goto sst_load_base_firmware_failed; + if (ctx->fw == NULL) { + ret = request_firmware(&ctx->fw, ctx->fw_name, ctx->dev); + if (ret < 0) { + dev_err(ctx->dev, "Request firmware failed %d\n", ret); + return ret; + } }
- /* check for extended manifest */ - if (ctx->fw == NULL) - goto sst_load_base_firmware_failed; - /* prase uuids on first boot */ if (skl->is_first_boot) { ret = snd_skl_parse_uuids(ctx, ctx->fw, BXT_ADSP_FW_BIN_HDR_OFFSET, 0); @@ -265,8 +275,11 @@ static int bxt_load_base_firmware(struct sst_dsp *ctx) } }
+ return ret; + sst_load_base_firmware_failed: release_firmware(ctx->fw); + ctx->fw = NULL; return ret; }
@@ -635,6 +648,10 @@ EXPORT_SYMBOL_GPL(bxt_sst_init_fw);
void bxt_sst_dsp_cleanup(struct device *dev, struct skl_sst *ctx) { + + sst_bxt_release_library(ctx->lib_info, ctx->lib_count); + if (ctx->dsp->fw) + release_firmware(ctx->dsp->fw); skl_freeup_uuid_list(ctx); skl_ipc_free(&ctx->ipc); ctx->dsp->cl_dev.ops.cl_cleanup_controller(ctx->dsp);
From: Jeeja KP jeeja.kp@intel.com
During S3->S0 transition, sometime ROM init fails because of authentication engine loads later than the OS. In this case driver waits for a longer period and then retries the FW download causing huge delay in resume time of audio device.
To avoid this, ROM INIT wait time is set to a optimal value and increased the retries for firmware download.
Signed-off-by: Jeeja KP jeeja.kp@intel.com --- sound/soc/intel/skylake/bxt-sst.c | 27 ++++++++++++++++----------- 1 file changed, 16 insertions(+), 11 deletions(-)
diff --git a/sound/soc/intel/skylake/bxt-sst.c b/sound/soc/intel/skylake/bxt-sst.c index 7762d5a..d3be1be 100644 --- a/sound/soc/intel/skylake/bxt-sst.c +++ b/sound/soc/intel/skylake/bxt-sst.c @@ -25,7 +25,8 @@ #include "skl-sst-ipc.h"
#define BXT_BASEFW_TIMEOUT 3000 -#define BXT_INIT_TIMEOUT 500 +#define BXT_INIT_TIMEOUT 300 +#define BXT_ROM_INIT_TIMEOUT 70 #define BXT_IPC_PURGE_FW 0x01004000
#define BXT_ROM_INIT 0x5 @@ -45,6 +46,8 @@ /* Delay before scheduling D0i3 entry */ #define BXT_D0I3_DELAY 5000
+#define BXT_FW_ROM_INIT_RETRY 3 + static unsigned int bxt_get_errorcode(struct sst_dsp *ctx) { return sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE); @@ -185,7 +188,7 @@ static int sst_bxt_prepare_fw(struct sst_dsp *ctx,
/* Step 7: Wait for ROM init */ ret = sst_dsp_register_poll(ctx, BXT_ADSP_FW_STATUS, SKL_FW_STS_MASK, - SKL_FW_INIT, BXT_INIT_TIMEOUT, "ROM Load"); + SKL_FW_INIT, BXT_ROM_INIT_TIMEOUT, "ROM Load"); if (ret < 0) { dev_err(ctx->dev, "Timeout for ROM init, ret:%d\n", ret); goto base_fw_load_failed; @@ -218,7 +221,7 @@ static int bxt_load_base_firmware(struct sst_dsp *ctx) { struct firmware stripped_fw; struct skl_sst *skl = ctx->thread_context; - int ret; + int ret, i;
if (ctx->fw == NULL) { ret = request_firmware(&ctx->fw, ctx->fw_name, ctx->dev); @@ -239,18 +242,20 @@ static int bxt_load_base_firmware(struct sst_dsp *ctx) stripped_fw.size = ctx->fw->size; skl_dsp_strip_extended_manifest(&stripped_fw);
- ret = sst_bxt_prepare_fw(ctx, stripped_fw.data, stripped_fw.size); - /* Retry Enabling core and ROM load. Retry seemed to help */ - if (ret < 0) { + + for (i = 0; i < BXT_FW_ROM_INIT_RETRY; i++) { ret = sst_bxt_prepare_fw(ctx, stripped_fw.data, stripped_fw.size); - if (ret < 0) { - dev_err(ctx->dev, "Error code=0x%x: FW status=0x%x\n", + if (ret == 0) + break; + } + + if (ret < 0) { + dev_err(ctx->dev, "Error code=0x%x: FW status=0x%x\n", sst_dsp_shim_read(ctx, BXT_ADSP_ERROR_CODE), sst_dsp_shim_read(ctx, BXT_ADSP_FW_STATUS));
- dev_err(ctx->dev, "Core En/ROM load fail:%d\n", ret); - goto sst_load_base_firmware_failed; - } + dev_err(ctx->dev, "Core En/ROM load fail:%d\n", ret); + goto sst_load_base_firmware_failed; }
ret = sst_transfer_fw_host_dma(ctx);
On Fri, Feb 17, 2017 at 10:48:55PM +0530, jeeja.kp@intel.com wrote:
From: Jeeja KP jeeja.kp@intel.com
This patch series provides update on DSP firmware download by optimizing o updating the dsp register poll method to use accurate timeout. o optimizing ROM init retries. o saving the firmware/library context at boot and use this ctx for downloading the firmware to DSP memory. o cleanup to store the library manifest data o release the firmware in cleanup routine.
Acked-by: Vinod Koul vinod.koul@intel.com
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jeeja.kp＠intel.com -
Vinod Koul