search for: tegra_sku_info

...Vince Hsu wrote: > Some Tegra drivers might be complied as kernel modules, and "compiled" > they need the fuse information for initialization. One > example is the GK20A Nouveau driver. It needs the GPU speedo > value to calculate frequency-voltage table. So export > the tegra_sku_info. Also please wrap the commit message at around 72 characters. If you make the lines too short it becomes almost as difficult to readable as if they're too long. Other than these small nitpicks this looks like a reasonable change to me. > > Signed-off-by: Vince Hsu <vinceh at nvidia...

Some Tegra drivers might be compiled as kernel modules, and they need the fuse information for initialization. One example is the GK20A Nouveau driver. It needs the GPU speedo value to calculate frequency-voltage table. So export the tegra_sku_info. Signed-off-by: Vince Hsu <vinceh at nvidia.com> Acked-by: Alexandre Courbot <acourbot at nvidia.com> Acked-by: Thierry Reding <treding at nvidia.com> --- v3: fix subject and typo, add reviewers' Acked-by v2: add more description why we need this patch drivers/soc/tegra/f...

Some Tegra drivers might be compiled as kernel modules, and they need the fuse information for initialization. One example is the GK20A Nouveau driver. It needs the GPU speedo value to calculate frequency-voltage table. So export the tegra_sku_info. Signed-off-by: Vince Hsu <vinceh at nvidia.com> Acked-by: Alexandre Courbot <acourbot at nvidia.com> Acked-by: Thierry Reding <treding at nvidia.com> --- v3: fix subject and typo, add reviewers' Acked-by v2: add more description why we need this patch drivers/soc/tegra/f...

Some Tegra drivers might be complied as kernel modules, and they need the fuse information for initialization. One example is the GK20A Nouveau driver. It needs the GPU speedo value to calculate frequency-voltage table. So export the tegra_sku_info. Signed-off-by: Vince Hsu <vinceh at nvidia.com> --- v2: add more description why we need this patch drivers/soc/tegra/fuse/fuse-tegra.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/soc/tegra/fuse/fuse-tegra.c b/drivers/soc/tegra/fuse/fuse-tegra.c index 11a5043959dc..011a33...

The voltage value are calculated by the hardware characterized result. Signed-off-by: Vince Hsu <vinceh at nvidia.com> --- Hi, The tegra_sku_info needs to be exported from Tegra fuse driver. I've sent the patch to the linux-tegra mailing list. Just FYI. Thanks, Vince drm/Kbuild | 1 + drm/core/subdev/volt/gk20a.c | 1 + nvkm/engine/device/nve0.c | 1 + nvkm/include/subdev/volt.h | 1 + nvkm/subdev/clock/...

Signed-off-by: Vince Hsu <vinceh at nvidia.com> --- nvkm/subdev/volt/base.c | 67 ++++++++++++++++++++++++++++--------------------- 1 file changed, 38 insertions(+), 29 deletions(-) diff --git a/nvkm/subdev/volt/base.c b/nvkm/subdev/volt/base.c index 32794a999106..26ccd8df193f 100644 --- a/nvkm/subdev/volt/base.c +++ b/nvkm/subdev/volt/base.c @@ -101,6 +101,41 @@ nouveau_volt_set_id(struct

...; + + mv = DIV_ROUND_CLOSEST(coef->c3 * speedo, s_scale) + coef->c4 + + DIV_ROUND_CLOSEST(coef->c5 * temp, t_scale); + mv = DIV_ROUND_CLOSEST(mv * temp, t_scale) + cvb_mv; + return mv; +} + +static int +gk20a_volt_calc_voltage(const struct cvb_coef *coef) +{ + int speedo, mv; + + speedo = tegra_sku_info.gpu_speedo_value; + + mv = gk20a_volt_get_cvb_t_voltage(speedo, -10, 100, 10, coef); + mv = DIV_ROUND_UP(mv, 1000); + + return mv * 1000; +} + +static int +gk20a_volt_vid_get(struct nouveau_volt *volt) +{ + struct gk20a_volt_priv *priv = (void *)volt; + int i, uv; + + uv = regulator_get_voltage(pri...

This series adds support for GM20B PLL's Maxwell features, namely glitchless switch and (more importantly) DFS support. DFS lets the PLL lower its output speed according to input current variations, making the clock more stable and allowing it to run safely at lower voltage. All GM20B additions are done in the last patch, which consequently ends up being considerably big ; fortunately, it

...ale) + coef->c4 + > + DIV_ROUND_CLOSEST(coef->c5 * temp, t_scale); > + mv = DIV_ROUND_CLOSEST(mv * temp, t_scale) + cvb_mv; > + return mv; > +} > + > +static int > +gk20a_volt_calc_voltage(const struct cvb_coef *coef) > +{ > + int speedo, mv; > + > + speedo = tegra_sku_info.gpu_speedo_value; > + > + mv = gk20a_volt_get_cvb_t_voltage(speedo, -10, 100, 10, coef); > + mv = DIV_ROUND_UP(mv, 1000); > + > + return mv * 1000; > +} > + > +static int > +gk20a_volt_vid_get(struct nouveau_volt *volt) > +{ > + struct gk20a_volt_priv *priv = (void...

...>c5 * temp, t_scale); >> + mv = DIV_ROUND_CLOSEST(mv * temp, t_scale) + cvb_mv; >> + return mv; >> +} >> + >> +static int >> +gk20a_volt_calc_voltage(const struct cvb_coef *coef) >> +{ >> + int speedo, mv; >> + >> + speedo = tegra_sku_info.gpu_speedo_value; >> + >> + mv = gk20a_volt_get_cvb_t_voltage(speedo, -10, 100, 10, coef); >> + mv = DIV_ROUND_UP(mv, 1000); >> + >> + return mv * 1000; >> +} >> + >> +static int >> +gk20a_volt_vid_get(struct nouveau_volt *volt) >&gt...