diff options
| author | Ben Skeggs <bskeggs@redhat.com> | 2014-08-10 04:10:20 +1000 |
|---|---|---|
| committer | Ben Skeggs <bskeggs@redhat.com> | 2014-08-10 05:13:02 +1000 |
| commit | 79ca27706a034b683196c85f5c6901b78e5ab8f0 (patch) | |
| tree | c06ff32b983e4456b3af679288dad97bfe79cfe9 /drivers/gpu/drm/nouveau/core/include/subdev/gpio.h | |
| parent | 4d681b666d4c1452139a06504df2ec101a4efc7e (diff) | |
drm/nouveau/core: rework event interface
This is a lot of prep-work for being able to send event notifications
back to userspace. Events now contain data, rather than a "something
just happened" signal.
Handler data is now embedded into a containing structure, rather than
being kmalloc()'d, and can optionally have the notify routine handled
in a workqueue.
Various races between suspend/unload with display HPD/DP IRQ handlers
automagically solved as a result.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/core/include/subdev/gpio.h')
| -rw-r--r-- | drivers/gpu/drm/nouveau/core/include/subdev/gpio.h | 16 |
1 files changed, 11 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h index 612d82ab683d..b73733d21cc7 100644 --- a/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h +++ b/drivers/gpu/drm/nouveau/core/include/subdev/gpio.h @@ -8,16 +8,22 @@ #include <subdev/bios.h> #include <subdev/bios/gpio.h> -enum nvkm_gpio_event { - NVKM_GPIO_HI = 1, - NVKM_GPIO_LO = 2, - NVKM_GPIO_TOGGLED = (NVKM_GPIO_HI | NVKM_GPIO_LO), +struct nvkm_gpio_ntfy_req { +#define NVKM_GPIO_HI 0x01 +#define NVKM_GPIO_LO 0x02 +#define NVKM_GPIO_TOGGLED 0x03 + u8 mask; + u8 line; +}; + +struct nvkm_gpio_ntfy_rep { + u8 mask; }; struct nouveau_gpio { struct nouveau_subdev base; - struct nouveau_event *events; + struct nvkm_event event; void (*reset)(struct nouveau_gpio *, u8 func); int (*find)(struct nouveau_gpio *, int idx, u8 tag, u8 line, |