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drm/msm/a6xx: Add A610 speedbin support

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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>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542780/
Signed-off-by: Rob Clark <robdclark@chromium.org>
This commit is contained in:
Konrad Dybcio 2023-06-16 01:21:01 +02:00 committed by Rob Clark
parent 20c8e39985
commit cd036d542a
1 changed files with 27 additions and 0 deletions
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27
drivers/gpu/drm/msm/adreno/a6xx_gpu.c
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@ -2204,6 +2204,30 @@ 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)
@ -2301,6 +2325,9 @@ 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);