Commit cd036d54 authored by Konrad Dybcio's avatar Konrad Dybcio Committed by Rob Clark
Browse files

drm/msm/a6xx: Add A610 speedbin support 



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: default avatarDmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: default avatarAkhil P Oommen <quic_akhilpo@quicinc.com>
Signed-off-by: default avatarKonrad Dybcio <konrad.dybcio@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/542780/


Signed-off-by: default avatarRob Clark <robdclark@chromium.org>
parent 20c8e399

drivers/gpu/drm/msm/adreno/a6xx_gpu.c

+27 −0
Original line number Diff line number Diff line
@@ -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);