search for: nouveau_volt

...t/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 nouveau_volt *volt, u8 id, int condition) return ret; } +static void nouveau_volt_parse_bios(struct nouveau_bios *bios, + struct nouveau_volt *volt) +{ + struct nvbios_volt_entry ivid; + struct nvbios_volt info; + u8 ver, hdr, cnt, len; + u16 data; + int i; + + data = nvbios_vo...

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

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

...break; > case 0xf0: > device->cname = "GK110"; > diff --git a/nvkm/include/subdev/volt.h b/nvkm/include/subdev/volt.h > index 820b62ffd75b..67db5e58880d 100644 > --- a/nvkm/include/subdev/volt.h > +++ b/nvkm/include/subdev/volt.h > @@ -52,6 +52,7 @@ int _nouveau_volt_init(struct nouveau_object *); > #define _nouveau_volt_fini _nouveau_subdev_fini > > extern struct nouveau_oclass nv40_volt_oclass; > +extern struct nouveau_oclass gk20a_volt_oclass; > > int nouveau_voltgpio_init(struct nouveau_volt *); > int nouveau_voltgpio_get(...

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

...V_VOLT ] = &gk20a_volt_oclass; break; case 0xf0: device->cname = "GK110"; diff --git a/nvkm/include/subdev/volt.h b/nvkm/include/subdev/volt.h index 820b62ffd75b..67db5e58880d 100644 --- a/nvkm/include/subdev/volt.h +++ b/nvkm/include/subdev/volt.h @@ -52,6 +52,7 @@ int _nouveau_volt_init(struct nouveau_object *); #define _nouveau_volt_fini _nouveau_subdev_fini extern struct nouveau_oclass nv40_volt_oclass; +extern struct nouveau_oclass gk20a_volt_oclass; int nouveau_voltgpio_init(struct nouveau_volt *); int nouveau_voltgpio_get(struct nouveau_volt *); diff --git a/nvkm...

...V_VOLT ] = &gk20a_volt_oclass; break; case 0xf0: device->cname = "GK110"; diff --git a/nvkm/include/subdev/volt.h b/nvkm/include/subdev/volt.h index 820b62ffd75b..67db5e58880d 100644 --- a/nvkm/include/subdev/volt.h +++ b/nvkm/include/subdev/volt.h @@ -52,6 +52,7 @@ int _nouveau_volt_init(struct nouveau_object *); #define _nouveau_volt_fini _nouveau_subdev_fini extern struct nouveau_oclass nv40_volt_oclass; +extern struct nouveau_oclass gk20a_volt_oclass; int nouveau_voltgpio_init(struct nouveau_volt *); int nouveau_voltgpio_get(struct nouveau_volt *); diff --git a/nvkm...

...gt;> device->cname = "GK110"; >> diff --git a/nvkm/include/subdev/volt.h b/nvkm/include/subdev/volt.h >> index 820b62ffd75b..67db5e58880d 100644 >> --- a/nvkm/include/subdev/volt.h >> +++ b/nvkm/include/subdev/volt.h >> @@ -52,6 +52,7 @@ int _nouveau_volt_init(struct nouveau_object *); >> #define _nouveau_volt_fini _nouveau_subdev_fini >> extern struct nouveau_oclass nv40_volt_oclass; >> +extern struct nouveau_oclass gk20a_volt_oclass; >> int nouveau_voltgpio_init(struct nouveau_volt *); >> int nouveau_voltg...

...t/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 nouveau_volt *volt, u8 id, int condition) return ret; } +static void nouveau_volt_parse_bios(struct nouveau_bios *bios, + struct nouveau_volt *volt) +{ + struct nvbios_volt_entry ivid; + struct nvbios_volt info; + u8 ver, hdr, cnt, len; + u16 data; + int i; + + data = nvbios_vo...

...vice->cname = "GK110"; >>> diff --git a/nvkm/include/subdev/volt.h b/nvkm/include/subdev/volt.h >>> index 820b62ffd75b..67db5e58880d 100644 >>> --- a/nvkm/include/subdev/volt.h >>> +++ b/nvkm/include/subdev/volt.h >>> @@ -52,6 +52,7 @@ int _nouveau_volt_init(struct nouveau_object *); >>> #define _nouveau_volt_fini _nouveau_subdev_fini >>> extern struct nouveau_oclass nv40_volt_oclass; >>> +extern struct nouveau_oclass gk20a_volt_oclass; >>> int nouveau_voltgpio_init(struct nouveau_volt *); >>>...

...ot;GK110"; >>>> diff --git a/nvkm/include/subdev/volt.h b/nvkm/include/subdev/volt.h >>>> index 820b62ffd75b..67db5e58880d 100644 >>>> --- a/nvkm/include/subdev/volt.h >>>> +++ b/nvkm/include/subdev/volt.h >>>> @@ -52,6 +52,7 @@ int _nouveau_volt_init(struct nouveau_object *); >>>> #define _nouveau_volt_fini _nouveau_subdev_fini >>>> extern struct nouveau_oclass nv40_volt_oclass; >>>> +extern struct nouveau_oclass gk20a_volt_oclass; >>>> int nouveau_voltgpio_init(struct nouveau_volt...

...(bios, vmap + 0x01); diff --git a/drivers/gpu/drm/nouveau/core/subdev/volt/base.c b/drivers/gpu/drm/nouveau/core/subdev/volt/base.c index 32794a999106..7bf716b048bd 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/volt/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/volt/base.c @@ -50,12 +50,23 @@ nouveau_volt_set(struct nouveau_volt *volt, u32 uv) { if (volt->vid_set) { int i, ret = -EINVAL; + u32 best_uv = INT_MAX, best_vid = 0; + for (i = 0; i < volt->vid_nr; i++) { - if (volt->vid[i].uv == uv) { - ret = volt->vid_set(volt, volt->vid[i].vid); - nv_debug(volt, "...

...> + return nouveau_subdev_fini(&dvfs->base, suspend); > +} > + > +int > +_nouveau_dvfs_init(struct nouveau_object *object) > +{ > + struct nouveau_dvfs *dvfs = (void *)object; > + struct nouveau_clock *clk = nouveau_clock(object); > + struct nouveau_volt *volt = nouveau_volt(object); > + int ret; > + > + ret = nouveau_subdev_init(&dvfs->base); > + if (ret) > + return ret; > + > + if (!clk || !volt) > + return -EINVAL; > + > + nouveau_timer_alarm(dvfs, 200...

...end); >>> +} >>> + >>> +int >>> +_nouveau_dvfs_init(struct nouveau_object *object) >>> +{ >>> + struct nouveau_dvfs *dvfs = (void *)object; >>> + struct nouveau_clock *clk = nouveau_clock(object); >>> + struct nouveau_volt *volt = nouveau_volt(object); >>> + int ret; >>> + >>> + ret = nouveau_subdev_init(&dvfs->base); >>> + if (ret) >>> + return ret; >>> + >>> + if (!clk || !volt) >>> + r...

Hi, This is a try to have some simple DVFS (Dynamic Voltage and Frequency Scaling) support for GK20A. Instead of relying on other existing frequency scaling framework, we create a simple subdev in Nouveau for the same purpose. That's because we don't want to make the DVFS implementation for GK20A far more than enough in the beginning and hinder the implementation for dGPU in the future.

...object; + + nouveau_timer_alarm_cancel(dvfs, &dvfs->alarm); + + return nouveau_subdev_fini(&dvfs->base, suspend); +} + +int +_nouveau_dvfs_init(struct nouveau_object *object) +{ + struct nouveau_dvfs *dvfs = (void *)object; + struct nouveau_clock *clk = nouveau_clock(object); + struct nouveau_volt *volt = nouveau_volt(object); + int ret; + + ret = nouveau_subdev_init(&dvfs->base); + if (ret) + return ret; + + if (!clk || !volt) + return -EINVAL; + + nouveau_timer_alarm(dvfs, 2000000000, &dvfs->alarm); + + return 0; +} + +void +_nouveau_dvfs_dtor(struct nouveau_object *object)...

...ev_fini(&dvfs->base, suspend); >> +} >> + >> +int >> +_nouveau_dvfs_init(struct nouveau_object *object) >> +{ >> + struct nouveau_dvfs *dvfs = (void *)object; >> + struct nouveau_clock *clk = nouveau_clock(object); >> + struct nouveau_volt *volt = nouveau_volt(object); >> + int ret; >> + >> + ret = nouveau_subdev_init(&dvfs->base); >> + if (ret) >> + return ret; >> + >> + if (!clk || !volt) >> + return -EINVAL; >> + >&g...

...t;>> + >>>> +int >>>> +_nouveau_dvfs_init(struct nouveau_object *object) >>>> +{ >>>> + struct nouveau_dvfs *dvfs = (void *)object; >>>> + struct nouveau_clock *clk = nouveau_clock(object); >>>> + struct nouveau_volt *volt = nouveau_volt(object); >>>> + int ret; >>>> + >>>> + ret = nouveau_subdev_init(&dvfs->base); >>>> + if (ret) >>>> + return ret; >>>> + >>>> + if (!clk || !volt) &g...

There might be some callers of nouveau_clock_astate(), and they are from inetrrupt context. So we must ensure that this function can be atomic in that condition. This patch adds one parameter which is subsequently passed to nouveau_pstate_calc(). Therefore we can choose whether we want to wait for the pstate work's completion or not. Signed-off-by: Vince Hsu <vinceh at nvidia.com> ---

...nouveau_hw.o nouveau_calc.o nouveau_bios.o nouveau_i2c.o \ nouveau_display.o nouveau_connector.o nouveau_fbcon.o \ - nouveau_hdmi.o nouveau_dp.o nouveau_ramht.o \ + nouveau_hdmi.o nouveau_dp.o nouveau_ramht.o nouveau_reset.o \ nouveau_pm.o nouveau_volt.o nouveau_perf.o nouveau_temp.o \ nouveau_mm.o nouveau_vm.o nouveau_mxm.o nouveau_gpio.o \ nv04_timer.o \ diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c index 5b0dc50..7de6cad 100644 --- a/drivers/gpu/drm/nouveau/nouveau_bo.c +++ b/driv...