On 14.06.2023 22:18, Akhil P Oommen wrote:
> On Mon, May 29, 2023 at 03:52:37PM +0200, Konrad Dybcio wrote:
>>
>> A610 is implemented on at least three SoCs: SM6115 (bengal), SM6125
>> (trinket) and SM6225 (khaje). Trinket does not support speed binning
>> (only a single SKU exists) and we don't yet support khaje upstream.
>> Hence, add a fuse mapping table for bengal to allow for per-chip
>> frequency limiting.
>>
>> Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
>> Signed-off-by: Konrad Dybcio <konrad.dybcio@xxxxxxxxxx>
>> ---
>> drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 27 +++++++++++++++++++++++++++
>> 1 file changed, 27 insertions(+)
>>
>> diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
>> index d046af5f6de2..c304fa118cff 100644
>> --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
>> +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c
>> @@ -2098,6 +2098,30 @@ static bool a6xx_progress(struct msm_gpu *gpu, struct msm_ringbuffer *ring)
>> return progress;
>> }
>>
>> +static u32 a610_get_speed_bin(u32 fuse)
>> +{
>> + /*
>> + * There are (at least) three SoCs implementing A610: SM6125 (trinket),
>> + * SM6115 (bengal) and SM6225 (khaje). Trinket does not have speedbinning,
>> + * as only a single SKU exists and we don't support khaje upstream yet.
>> + * Hence, this matching table is only valid for bengal and can be easily
>> + * expanded if need be.
>> + */
>> +
>> + if (fuse == 0)
>> + return 0;
>> + else if (fuse == 206)
>> + return 1;
>> + else if (fuse == 200)
>> + return 2;
>> + else if (fuse == 157)
>> + return 3;
>> + else if (fuse == 127)
>> + return 4;
>> +
>> + return UINT_MAX;
>> +}
>> +
>> static u32 a618_get_speed_bin(u32 fuse)
>> {
>> if (fuse == 0)
>> @@ -2195,6 +2219,9 @@ static u32 fuse_to_supp_hw(struct device *dev, struct adreno_gpu *adreno_gpu, u3
>> {
>> u32 val = UINT_MAX;
>>
>> + if (adreno_is_a610(adreno_gpu))
>> + val = a610_get_speed_bin(fuse);
>> +
>
> Didn't you update here to convert to 'else if' in one of the earlier
> patches??
Right, missed this one!
Konrad
>
> Reviewed-by: Akhil P Oommen <quic_akhilpo@xxxxxxxxxxx>
>
> -Akhil.
>> if (adreno_is_a618(adreno_gpu))
>> val = a618_get_speed_bin(fuse);
>>
>>
>> --
>> 2.40.1
>>
