| Message ID | 20230223-topic-gmuwrapper-v4-14-e987eb79d03f@linaro.org (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | GMU-less A6xx support (A610, A619_holi) | expand |
On 14/03/2023 17:28, 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@linaro.org> > Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org> > --- > drivers/gpu/drm/msm/adreno/a6xx_gpu.c | 27 +++++++++++++++++++++++++++ > 1 file changed, 27 insertions(+) Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c index 27b96a335039..f9f1a6c50f65 100644 --- a/drivers/gpu/drm/msm/adreno/a6xx_gpu.c +++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu.c @@ -2136,6 +2136,30 @@ 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) @@ -2232,6 +2256,9 @@ 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); + if (adreno_is_a618(adreno_gpu)) val = a618_get_speed_bin(fuse);