diff options
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/subdev/gpio')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/base.c | 140 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c | 40 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c | 45 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c | 14 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c | 131 | ||||
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h | 17 |
6 files changed, 222 insertions, 165 deletions
diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c index 9fb0f9b92d49..d422acc9af15 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/base.c @@ -102,135 +102,19 @@ nouveau_gpio_get(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line) return ret; } -static int -nouveau_gpio_irq(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line, bool on) -{ - struct dcb_gpio_func func; - int ret; - - ret = nouveau_gpio_find(gpio, idx, tag, line, &func); - if (ret == 0) { - if (idx == 0 && gpio->irq_enable) - gpio->irq_enable(gpio, func.line, on); - else - ret = -ENODEV; - } - - return ret; -} - -struct gpio_isr { - struct nouveau_gpio *gpio; - struct list_head head; - struct work_struct work; - int idx; - struct dcb_gpio_func func; - void (*handler)(void *, int); - void *data; - bool inhibit; -}; - -static void -nouveau_gpio_isr_bh(struct work_struct *work) -{ - struct gpio_isr *isr = container_of(work, struct gpio_isr, work); - struct nouveau_gpio *gpio = isr->gpio; - unsigned long flags; - int state; - - state = nouveau_gpio_get(gpio, isr->idx, isr->func.func, - isr->func.line); - if (state >= 0) - isr->handler(isr->data, state); - - spin_lock_irqsave(&gpio->lock, flags); - isr->inhibit = false; - spin_unlock_irqrestore(&gpio->lock, flags); -} - -static void -nouveau_gpio_isr_run(struct nouveau_gpio *gpio, int idx, u32 line_mask) -{ - struct gpio_isr *isr; - - if (idx != 0) - return; - - spin_lock(&gpio->lock); - list_for_each_entry(isr, &gpio->isr, head) { - if (line_mask & (1 << isr->func.line)) { - if (isr->inhibit) - continue; - isr->inhibit = true; - schedule_work(&isr->work); - } - } - spin_unlock(&gpio->lock); -} - -static int -nouveau_gpio_isr_add(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line, - void (*handler)(void *, int), void *data) -{ - struct gpio_isr *isr; - unsigned long flags; - int ret; - - isr = kzalloc(sizeof(*isr), GFP_KERNEL); - if (!isr) - return -ENOMEM; - - ret = nouveau_gpio_find(gpio, idx, tag, line, &isr->func); - if (ret) { - kfree(isr); - return ret; - } - - INIT_WORK(&isr->work, nouveau_gpio_isr_bh); - isr->gpio = gpio; - isr->handler = handler; - isr->data = data; - isr->idx = idx; - - spin_lock_irqsave(&gpio->lock, flags); - list_add(&isr->head, &gpio->isr); - spin_unlock_irqrestore(&gpio->lock, flags); - return 0; -} - -static void -nouveau_gpio_isr_del(struct nouveau_gpio *gpio, int idx, u8 tag, u8 line, - void (*handler)(void *, int), void *data) +void +_nouveau_gpio_dtor(struct nouveau_object *object) { - struct gpio_isr *isr, *tmp; - struct dcb_gpio_func func; - unsigned long flags; - LIST_HEAD(tofree); - int ret; - - ret = nouveau_gpio_find(gpio, idx, tag, line, &func); - if (ret == 0) { - spin_lock_irqsave(&gpio->lock, flags); - list_for_each_entry_safe(isr, tmp, &gpio->isr, head) { - if (memcmp(&isr->func, &func, sizeof(func)) || - isr->idx != idx || - isr->handler != handler || isr->data != data) - continue; - list_move_tail(&isr->head, &tofree); - } - spin_unlock_irqrestore(&gpio->lock, flags); - - list_for_each_entry_safe(isr, tmp, &tofree, head) { - flush_work(&isr->work); - kfree(isr); - } - } + struct nouveau_gpio *gpio = (void *)object; + nouveau_event_destroy(&gpio->events); + nouveau_subdev_destroy(&gpio->base); } int nouveau_gpio_create_(struct nouveau_object *parent, struct nouveau_object *engine, - struct nouveau_oclass *oclass, int length, void **pobject) + struct nouveau_oclass *oclass, int lines, + int length, void **pobject) { struct nouveau_gpio *gpio; int ret; @@ -241,15 +125,13 @@ nouveau_gpio_create_(struct nouveau_object *parent, if (ret) return ret; + ret = nouveau_event_create(lines, &gpio->events); + if (ret) + return ret; + gpio->find = nouveau_gpio_find; gpio->set = nouveau_gpio_set; gpio->get = nouveau_gpio_get; - gpio->irq = nouveau_gpio_irq; - gpio->isr_run = nouveau_gpio_isr_run; - gpio->isr_add = nouveau_gpio_isr_add; - gpio->isr_del = nouveau_gpio_isr_del; - INIT_LIST_HEAD(&gpio->isr); - spin_lock_init(&gpio->lock); return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c index 168d16a9a8e9..76d5d5465ddd 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv10.c @@ -24,7 +24,7 @@ * */ -#include <subdev/gpio.h> +#include "priv.h" struct nv10_gpio_priv { struct nouveau_gpio base; @@ -83,27 +83,36 @@ nv10_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out) } static void -nv10_gpio_irq_enable(struct nouveau_gpio *gpio, int line, bool on) -{ - u32 mask = 0x00010001 << line; - - nv_wr32(gpio, 0x001104, mask); - nv_mask(gpio, 0x001144, mask, on ? mask : 0); -} - -static void nv10_gpio_intr(struct nouveau_subdev *subdev) { struct nv10_gpio_priv *priv = (void *)subdev; u32 intr = nv_rd32(priv, 0x001104); u32 hi = (intr & 0x0000ffff) >> 0; u32 lo = (intr & 0xffff0000) >> 16; + int i; - priv->base.isr_run(&priv->base, 0, hi | lo); + for (i = 0; (hi | lo) && i < 32; i++) { + if ((hi | lo) & (1 << i)) + nouveau_event_trigger(priv->base.events, i); + } nv_wr32(priv, 0x001104, intr); } +static void +nv10_gpio_intr_enable(struct nouveau_event *event, int line) +{ + nv_wr32(event->priv, 0x001104, 0x00010001 << line); + nv_mask(event->priv, 0x001144, 0x00010001 << line, 0x00010001 << line); +} + +static void +nv10_gpio_intr_disable(struct nouveau_event *event, int line) +{ + nv_wr32(event->priv, 0x001104, 0x00010001 << line); + nv_mask(event->priv, 0x001144, 0x00010001 << line, 0x00000000); +} + static int nv10_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 size, @@ -112,14 +121,16 @@ nv10_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv10_gpio_priv *priv; int ret; - ret = nouveau_gpio_create(parent, engine, oclass, &priv); + ret = nouveau_gpio_create(parent, engine, oclass, 16, &priv); *pobject = nv_object(priv); if (ret) return ret; priv->base.drive = nv10_gpio_drive; priv->base.sense = nv10_gpio_sense; - priv->base.irq_enable = nv10_gpio_irq_enable; + priv->base.events->priv = priv; + priv->base.events->enable = nv10_gpio_intr_enable; + priv->base.events->disable = nv10_gpio_intr_disable; nv_subdev(priv)->intr = nv10_gpio_intr; return 0; } @@ -141,8 +152,6 @@ nv10_gpio_init(struct nouveau_object *object) if (ret) return ret; - nv_wr32(priv, 0x001140, 0x00000000); - nv_wr32(priv, 0x001100, 0xffffffff); nv_wr32(priv, 0x001144, 0x00000000); nv_wr32(priv, 0x001104, 0xffffffff); return 0; @@ -152,7 +161,6 @@ static int nv10_gpio_fini(struct nouveau_object *object, bool suspend) { struct nv10_gpio_priv *priv = (void *)object; - nv_wr32(priv, 0x001140, 0x00000000); nv_wr32(priv, 0x001144, 0x00000000); return nouveau_gpio_fini(&priv->base, suspend); } diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c index bf13a1200f26..bf489dcf46e2 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nv50.c @@ -22,7 +22,7 @@ * Authors: Ben Skeggs */ -#include <subdev/gpio.h> +#include "priv.h" struct nv50_gpio_priv { struct nouveau_gpio base; @@ -95,21 +95,12 @@ nv50_gpio_sense(struct nouveau_gpio *gpio, int line) } void -nv50_gpio_irq_enable(struct nouveau_gpio *gpio, int line, bool on) -{ - u32 reg = line < 16 ? 0xe050 : 0xe070; - u32 mask = 0x00010001 << (line & 0xf); - - nv_wr32(gpio, reg + 4, mask); - nv_mask(gpio, reg + 0, mask, on ? mask : 0); -} - -void nv50_gpio_intr(struct nouveau_subdev *subdev) { struct nv50_gpio_priv *priv = (void *)subdev; u32 intr0, intr1 = 0; u32 hi, lo; + int i; intr0 = nv_rd32(priv, 0xe054) & nv_rd32(priv, 0xe050); if (nv_device(priv)->chipset >= 0x90) @@ -117,13 +108,35 @@ nv50_gpio_intr(struct nouveau_subdev *subdev) hi = (intr0 & 0x0000ffff) | (intr1 << 16); lo = (intr0 >> 16) | (intr1 & 0xffff0000); - priv->base.isr_run(&priv->base, 0, hi | lo); + + for (i = 0; (hi | lo) && i < 32; i++) { + if ((hi | lo) & (1 << i)) + nouveau_event_trigger(priv->base.events, i); + } nv_wr32(priv, 0xe054, intr0); if (nv_device(priv)->chipset >= 0x90) nv_wr32(priv, 0xe074, intr1); } +void +nv50_gpio_intr_enable(struct nouveau_event *event, int line) +{ + const u32 addr = line < 16 ? 0xe050 : 0xe070; + const u32 mask = 0x00010001 << (line & 0xf); + nv_wr32(event->priv, addr + 0x04, mask); + nv_mask(event->priv, addr + 0x00, mask, mask); +} + +void +nv50_gpio_intr_disable(struct nouveau_event *event, int line) +{ + const u32 addr = line < 16 ? 0xe050 : 0xe070; + const u32 mask = 0x00010001 << (line & 0xf); + nv_wr32(event->priv, addr + 0x04, mask); + nv_mask(event->priv, addr + 0x00, mask, 0x00000000); +} + static int nv50_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nouveau_oclass *oclass, void *data, u32 size, @@ -132,7 +145,9 @@ nv50_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nv50_gpio_priv *priv; int ret; - ret = nouveau_gpio_create(parent, engine, oclass, &priv); + ret = nouveau_gpio_create(parent, engine, oclass, + nv_device(parent)->chipset >= 0x90 ? 32 : 16, + &priv); *pobject = nv_object(priv); if (ret) return ret; @@ -140,7 +155,9 @@ nv50_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, priv->base.reset = nv50_gpio_reset; priv->base.drive = nv50_gpio_drive; priv->base.sense = nv50_gpio_sense; - priv->base.irq_enable = nv50_gpio_irq_enable; + priv->base.events->priv = priv; + priv->base.events->enable = nv50_gpio_intr_enable; + priv->base.events->disable = nv50_gpio_intr_disable; nv_subdev(priv)->intr = nv50_gpio_intr; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c index 83e8b8f16e6a..010431e3acec 100644 --- a/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nvd0.c @@ -22,13 +22,13 @@ * Authors: Ben Skeggs */ -#include <subdev/gpio.h> +#include "priv.h" struct nvd0_gpio_priv { struct nouveau_gpio base; }; -static void +void nvd0_gpio_reset(struct nouveau_gpio *gpio, u8 match) { struct nouveau_bios *bios = nouveau_bios(gpio); @@ -57,7 +57,7 @@ nvd0_gpio_reset(struct nouveau_gpio *gpio, u8 match) } } -static int +int nvd0_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out) { u32 data = ((dir ^ 1) << 13) | (out << 12); @@ -66,7 +66,7 @@ nvd0_gpio_drive(struct nouveau_gpio *gpio, int line, int dir, int out) return 0; } -static int +int nvd0_gpio_sense(struct nouveau_gpio *gpio, int line) { return !!(nv_rd32(gpio, 0x00d610 + (line * 4)) & 0x00004000); @@ -80,7 +80,7 @@ nvd0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, struct nvd0_gpio_priv *priv; int ret; - ret = nouveau_gpio_create(parent, engine, oclass, &priv); + ret = nouveau_gpio_create(parent, engine, oclass, 32, &priv); *pobject = nv_object(priv); if (ret) return ret; @@ -88,7 +88,9 @@ nvd0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, priv->base.reset = nvd0_gpio_reset; priv->base.drive = nvd0_gpio_drive; priv->base.sense = nvd0_gpio_sense; - priv->base.irq_enable = nv50_gpio_irq_enable; + priv->base.events->priv = priv; + priv->base.events->enable = nv50_gpio_intr_enable; + priv->base.events->disable = nv50_gpio_intr_disable; nv_subdev(priv)->intr = nv50_gpio_intr; return 0; } diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c new file mode 100644 index 000000000000..16b8c5bf5efa --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/nve0.c @@ -0,0 +1,131 @@ +/* + * Copyright 2012 Red Hat Inc. + * + * 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 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 HOLDER(S) OR AUTHOR(S) 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. + * + * Authors: Ben Skeggs + */ + +#include "priv.h" + +struct nve0_gpio_priv { + struct nouveau_gpio base; +}; + +void +nve0_gpio_intr(struct nouveau_subdev *subdev) +{ + struct nve0_gpio_priv *priv = (void *)subdev; + u32 intr0 = nv_rd32(priv, 0xdc00) & nv_rd32(priv, 0xdc08); + u32 intr1 = nv_rd32(priv, 0xdc80) & nv_rd32(priv, 0xdc88); + u32 hi = (intr0 & 0x0000ffff) | (intr1 << 16); + u32 lo = (intr0 >> 16) | (intr1 & 0xffff0000); + int i; + + for (i = 0; (hi | lo) && i < 32; i++) { + if ((hi | lo) & (1 << i)) + nouveau_event_trigger(priv->base.events, i); + } + + nv_wr32(priv, 0xdc00, intr0); + nv_wr32(priv, 0xdc88, intr1); +} + +void +nve0_gpio_intr_enable(struct nouveau_event *event, int line) +{ + const u32 addr = line < 16 ? 0xdc00 : 0xdc80; + const u32 mask = 0x00010001 << (line & 0xf); + nv_wr32(event->priv, addr + 0x08, mask); + nv_mask(event->priv, addr + 0x00, mask, mask); +} + +void +nve0_gpio_intr_disable(struct nouveau_event *event, int line) +{ + const u32 addr = line < 16 ? 0xdc00 : 0xdc80; + const u32 mask = 0x00010001 << (line & 0xf); + nv_wr32(event->priv, addr + 0x08, mask); + nv_mask(event->priv, addr + 0x00, mask, 0x00000000); +} + +int +nve0_gpio_fini(struct nouveau_object *object, bool suspend) +{ + struct nve0_gpio_priv *priv = (void *)object; + nv_wr32(priv, 0xdc08, 0x00000000); + nv_wr32(priv, 0xdc88, 0x00000000); + return nouveau_gpio_fini(&priv->base, suspend); +} + +int +nve0_gpio_init(struct nouveau_object *object) +{ + struct nve0_gpio_priv *priv = (void *)object; + int ret; + + ret = nouveau_gpio_init(&priv->base); + if (ret) + return ret; + + nv_wr32(priv, 0xdc00, 0xffffffff); + nv_wr32(priv, 0xdc80, 0xffffffff); + return 0; +} + +void +nve0_gpio_dtor(struct nouveau_object *object) +{ + struct nve0_gpio_priv *priv = (void *)object; + nouveau_gpio_destroy(&priv->base); +} + +static int +nve0_gpio_ctor(struct nouveau_object *parent, struct nouveau_object *engine, + struct nouveau_oclass *oclass, void *data, u32 size, + struct nouveau_object **pobject) +{ + struct nve0_gpio_priv *priv; + int ret; + + ret = nouveau_gpio_create(parent, engine, oclass, 32, &priv); + *pobject = nv_object(priv); + if (ret) + return ret; + + priv->base.reset = nvd0_gpio_reset; + priv->base.drive = nvd0_gpio_drive; + priv->base.sense = nvd0_gpio_sense; + priv->base.events->priv = priv; + priv->base.events->enable = nve0_gpio_intr_enable; + priv->base.events->disable = nve0_gpio_intr_disable; + nv_subdev(priv)->intr = nve0_gpio_intr; + return 0; +} + +struct nouveau_oclass +nve0_gpio_oclass = { + .handle = NV_SUBDEV(GPIO, 0xe0), + .ofuncs = &(struct nouveau_ofuncs) { + .ctor = nve0_gpio_ctor, + .dtor = nv50_gpio_dtor, + .init = nve0_gpio_init, + .fini = nve0_gpio_fini, + }, +}; diff --git a/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h new file mode 100644 index 000000000000..2ee1c895c782 --- /dev/null +++ b/drivers/gpu/drm/nouveau/core/subdev/gpio/priv.h @@ -0,0 +1,17 @@ +#ifndef __NVKM_GPIO_H__ +#define __NVKM_GPIO_H__ + +#include <subdev/gpio.h> + +void nv50_gpio_dtor(struct nouveau_object *); +int nv50_gpio_init(struct nouveau_object *); +int nv50_gpio_fini(struct nouveau_object *, bool); +void nv50_gpio_intr(struct nouveau_subdev *); +void nv50_gpio_intr_enable(struct nouveau_event *, int line); +void nv50_gpio_intr_disable(struct nouveau_event *, int line); + +void nvd0_gpio_reset(struct nouveau_gpio *, u8); +int nvd0_gpio_drive(struct nouveau_gpio *, int, int, int); +int nvd0_gpio_sense(struct nouveau_gpio *, int); + +#endif |