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Merge branch 'linux-4.9' of git://github.com/skeggsb/linux into drm-next
Karol's work which greatly improves volt/clock changes on a heap of boards, nothing too exciting beyond a random collection of fixes. * 'linux-4.9' of git://github.com/skeggsb/linux: (33 commits) drm/nouveau/fb/nv50: defer DMA mapping of scratch page to oneinit() hook drm/nouveau/fb/gf100: defer DMA mapping of scratch page to oneinit() hook drm/nouveau/pci: set streaming DMA mask early drm/nouveau/kms: add Maxwell to backlight initialization drm/nouveau/bar/nv50: fix bar2 vm size drm/nouveau/disp: remove unused function in sorg94.c drm/nouveau/volt: use kernel's 64-bit signed division function drm/nouveau/core: add missing header dependencies drm/nouveau/gr/nv3x: add 0x0597 kelvin 3d class support drm/nouveau/drm/nouveau: add a LED driver for the NVIDIA logo drm/nouveau/fb/ram: Use Kepler implementation on Maxwell drm/nouveau/volt: Make use of cvb coefficients drm/nouveau/volt/gf100-: Add speedo drm/nouveau/volt: Add implementation for gf100 drm/nouveau/bios/vmap: unk0 field is the mode drm/nouveau/volt: Don't require perfect fit drm/nouveau/clk: Allow boosting only when NvBoost is set drm/nouveau/bios: Add parsing of VPSTATE table drm/nouveau/clk: Respect voltage limits in nvkm_cstate_prog drm/nouveau/clk: Fixup cstate selection ...
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10 changes: 8 additions & 2 deletions
10
drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/iccsense.h
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24 changes: 24 additions & 0 deletions
24
drivers/gpu/drm/nouveau/include/nvkm/subdev/bios/vpstate.h
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#ifndef __NVBIOS_VPSTATE_H__ | ||
#define __NVBIOS_VPSTATE_H__ | ||
struct nvbios_vpstate_header { | ||
u32 offset; | ||
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u8 version; | ||
u8 hlen; | ||
u8 ecount; | ||
u8 elen; | ||
u8 scount; | ||
u8 slen; | ||
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u8 base_id; | ||
u8 boost_id; | ||
u8 tdp_id; | ||
}; | ||
struct nvbios_vpstate_entry { | ||
u8 pstate; | ||
u16 clock_mhz; | ||
}; | ||
int nvbios_vpstate_parse(struct nvkm_bios *, struct nvbios_vpstate_header *); | ||
int nvbios_vpstate_entry(struct nvkm_bios *, struct nvbios_vpstate_header *, | ||
u8 idx, struct nvbios_vpstate_entry *); | ||
#endif |
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/* | ||
* Copyright (C) 2016 Martin Peres | ||
* | ||
* Permission is hereby granted, free of charge, to any person obtaining | ||
* a copy of this software and associated documentation files (the | ||
* "Software"), to deal in the Software without restriction, including | ||
* without limitation the rights to use, copy, modify, merge, publish, | ||
* distribute, sublicense, and/or sell copies of the Software, and to | ||
* permit persons to whom the Software is furnished to do so, subject to | ||
* the following conditions: | ||
* | ||
* The above copyright notice and this permission notice (including the | ||
* next paragraph) shall be included in all copies or substantial | ||
* portions of the Software. | ||
* | ||
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, | ||
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF | ||
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. | ||
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE | ||
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION | ||
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION | ||
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. | ||
* | ||
*/ | ||
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/* | ||
* Authors: | ||
* Martin Peres <martin.peres@free.fr> | ||
*/ | ||
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#include <linux/leds.h> | ||
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#include "nouveau_led.h" | ||
#include <nvkm/subdev/gpio.h> | ||
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static enum led_brightness | ||
nouveau_led_get_brightness(struct led_classdev *led) | ||
{ | ||
struct drm_device *drm_dev = container_of(led, struct nouveau_led, led)->dev; | ||
struct nouveau_drm *drm = nouveau_drm(drm_dev); | ||
struct nvif_object *device = &drm->device.object; | ||
u32 div, duty; | ||
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div = nvif_rd32(device, 0x61c880) & 0x00ffffff; | ||
duty = nvif_rd32(device, 0x61c884) & 0x00ffffff; | ||
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if (div > 0) | ||
return duty * LED_FULL / div; | ||
else | ||
return 0; | ||
} | ||
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static void | ||
nouveau_led_set_brightness(struct led_classdev *led, enum led_brightness value) | ||
{ | ||
struct drm_device *drm_dev = container_of(led, struct nouveau_led, led)->dev; | ||
struct nouveau_drm *drm = nouveau_drm(drm_dev); | ||
struct nvif_object *device = &drm->device.object; | ||
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u32 input_clk = 27e6; /* PDISPLAY.SOR[1].PWM is connected to the crystal */ | ||
u32 freq = 100; /* this is what nvidia uses and it should be good-enough */ | ||
u32 div, duty; | ||
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div = input_clk / freq; | ||
duty = value * div / LED_FULL; | ||
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/* for now, this is safe to directly poke those registers because: | ||
* - A: nvidia never puts the logo led to any other PWM controler | ||
* than PDISPLAY.SOR[1].PWM. | ||
* - B: nouveau does not touch these registers anywhere else | ||
*/ | ||
nvif_wr32(device, 0x61c880, div); | ||
nvif_wr32(device, 0x61c884, 0xc0000000 | duty); | ||
} | ||
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int | ||
nouveau_led_init(struct drm_device *dev) | ||
{ | ||
struct nouveau_drm *drm = nouveau_drm(dev); | ||
struct nvkm_gpio *gpio = nvxx_gpio(&drm->device); | ||
struct dcb_gpio_func logo_led; | ||
int ret; | ||
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if (!gpio) | ||
return 0; | ||
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/* check that there is a GPIO controlling the logo LED */ | ||
if (nvkm_gpio_find(gpio, 0, DCB_GPIO_LOGO_LED_PWM, 0xff, &logo_led)) | ||
return 0; | ||
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drm->led = kzalloc(sizeof(*drm->led), GFP_KERNEL); | ||
if (!drm->led) | ||
return -ENOMEM; | ||
drm->led->dev = dev; | ||
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drm->led->led.name = "nvidia-logo"; | ||
drm->led->led.max_brightness = 255; | ||
drm->led->led.brightness_get = nouveau_led_get_brightness; | ||
drm->led->led.brightness_set = nouveau_led_set_brightness; | ||
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ret = led_classdev_register(dev->dev, &drm->led->led); | ||
if (ret) { | ||
kfree(drm->led); | ||
return ret; | ||
} | ||
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return 0; | ||
} | ||
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void | ||
nouveau_led_suspend(struct drm_device *dev) | ||
{ | ||
struct nouveau_drm *drm = nouveau_drm(dev); | ||
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if (drm->led) | ||
led_classdev_suspend(&drm->led->led); | ||
} | ||
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void | ||
nouveau_led_resume(struct drm_device *dev) | ||
{ | ||
struct nouveau_drm *drm = nouveau_drm(dev); | ||
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if (drm->led) | ||
led_classdev_resume(&drm->led->led); | ||
} | ||
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void | ||
nouveau_led_fini(struct drm_device *dev) | ||
{ | ||
struct nouveau_drm *drm = nouveau_drm(dev); | ||
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if (drm->led) { | ||
led_classdev_unregister(&drm->led->led); | ||
kfree(drm->led); | ||
drm->led = NULL; | ||
} | ||
} |
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