[RFC][PATCH 1/2] remoteproc: Reduce asynchronous request_firmware to auto-boot only
Sarangdhar Joshi
spjoshi at codeaurora.org
Tue Feb 7 10:55:38 PST 2017
Hi Bjorn,
On 02/06/2017 01:08 PM, Bjorn Andersson wrote:
> On Tue 24 Jan 15:13 PST 2017, Sarangdhar Joshi wrote:
>
>> The rproc_add_virtio_devices() requests firmware asynchronously and
>> triggers boot if the auto_boot flag is set. However, this
>> asynchronous call seems to be redundant for non auto-boot scenario
>> since the rproc_boot() would call request_firmware() anyways. Move
>> the auto_boot check to rproc_add() so that a redundant call to
>> _request_firmware can be avoided for non auto-boot case.
>>
>> Signed-off-by: Sarangdhar Joshi <spjoshi at codeaurora.org>
>
> Looks good, applied both patches.
Thanks for the review and applying these(and couple others) patches.
Regards,
Sarang
>
> Regards,
> Bjorn
>
>> ---
>>
>> I'm requesting RFC on this patch since I'm not aware of any scenario
>> where we might need asynchronous firmware loading for non auto-boot case.
>>
>> drivers/remoteproc/remoteproc_core.c | 14 ++++++++------
>> 1 file changed, 8 insertions(+), 6 deletions(-)
>>
>> diff --git a/drivers/remoteproc/remoteproc_core.c b/drivers/remoteproc/remoteproc_core.c
>> index f58e634..16242b0 100644
>> --- a/drivers/remoteproc/remoteproc_core.c
>> +++ b/drivers/remoteproc/remoteproc_core.c
>> @@ -970,9 +970,7 @@ static void rproc_fw_config_virtio(const struct firmware *fw, void *context)
>> {
>> struct rproc *rproc = context;
>>
>> - /* if rproc is marked always-on, request it to boot */
>> - if (rproc->auto_boot)
>> - rproc_boot(rproc);
>> + rproc_boot(rproc);
>>
>> release_firmware(fw);
>> }
>> @@ -1286,9 +1284,13 @@ int rproc_add(struct rproc *rproc)
>>
>> /* create debugfs entries */
>> rproc_create_debug_dir(rproc);
>> - ret = rproc_add_virtio_devices(rproc);
>> - if (ret < 0)
>> - return ret;
>> +
>> + /* if rproc is marked always-on, request it to boot */
>> + if (rproc->auto_boot) {
>> + ret = rproc_add_virtio_devices(rproc);
>> + if (ret < 0)
>> + return ret;
>> + }
>>
>> /* expose to rproc_get_by_phandle users */
>> mutex_lock(&rproc_list_mutex);
>> --
>> The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
>> a Linux Foundation Collaborative Project
>>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-remoteproc" in
> the body of a message to majordomo at vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum,
a Linux Foundation Collaborative Project
More information about the linux-arm-kernel
mailing list