[PATCH v6 2/2] misc: fastrpc: Increase unsigned PD initmem size

Ekansh Gupta quic_ekangupt at quicinc.com
Tue Jul 23 04:36:38 UTC 2024



On 7/22/2024 2:04 PM, Dmitry Baryshkov wrote:
> On Mon, Jul 22, 2024 at 01:32:00PM GMT, Ekansh Gupta wrote:
>> For unsigned PD offloading requirement, additional memory is required
>> because of additional static heap initialization. Without this
>> additional memory, PD initialization would fail. Increase the initmem
>> size by 2MB for unsigned PD initmem buffer allocation. Any additional
>> memory sent to DSP during PD init is used as the PD heap.
> From the previous commit message I had the feeling that DSP can request
> more memory if required. Currently you are stating that PD init would
> fail if it doesn't have enough mem.

DSP PD can request for memory only for PD heap and that too once the PD
initialization is complete.

>
>> Fixes: 7f1f481263c3 ("misc: fastrpc: check before loading process to the DSP")
>> Cc: stable <stable at kernel.org>
>> Signed-off-by: Ekansh Gupta <quic_ekangupt at quicinc.com>
>> ---
>>  drivers/misc/fastrpc.c | 8 ++++++++
>>  1 file changed, 8 insertions(+)
>>



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