diff options
| author | Dave Airlie <airlied@redhat.com> | 2012-09-10 14:20:51 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2013-08-29 13:30:46 +1000 |
| commit | 5addcf0a5f0fadceba6bd562d0616a1c5d4c1a4d (patch) | |
| tree | 5162dd3bf9dd94b2b59b01a320fc019deda052bd /drivers/gpu/drm/nouveau/nouveau_display.c | |
| parent | 13bb9cc8726c716a7f271fc2c760ba15e1fdd38c (diff) | |
nouveau: add runtime PM support (v0.9)
This hooks nouveau up to the runtime PM system to enable
dynamic power management for secondary GPUs in switchable
and optimus laptops.
a) rewrite suspend/resume printks to hide them during dynamic s/r
to avoid cluttering logs
b) add runtime pm suspend to irq handler, crtc display, ioctl handler,
connector status,
c) handle hdmi audio dynamic power on/off using magic register.
v0.5:
make sure we hit D3 properly
fix fbdev_set_suspend locking interaction, we only will poweroff if we have no
active crtcs/fbcon anyways.
add reference for active crtcs.
sprinkle mark last busy for autosuspend timeout
v0.6:
allow more flexible debugging - to avoid log spam
add option to enable/disable dynpm
got to D3Cold
v0.7:
add hdmi audio support.
v0.8:
call autosuspend from idle, so pci config space access doesn't go straight
back to sleep, this makes starting X faster.
only signal usage if we actually handle the irq, otherwise usb keeps us awake.
fix nv50 display active powerdown
v0.9:
use masking function to enable hdmi audio
set busy when we fail to suspend
Signed-off-by: Dave Airlie <airlied@redhat.com>
Diffstat (limited to 'drivers/gpu/drm/nouveau/nouveau_display.c')
| -rw-r--r-- | drivers/gpu/drm/nouveau/nouveau_display.c | 12 |
1 files changed, 7 insertions, 5 deletions
diff --git a/drivers/gpu/drm/nouveau/nouveau_display.c b/drivers/gpu/drm/nouveau/nouveau_display.c index 78637afb9b94..dbcf10681ab2 100644 --- a/drivers/gpu/drm/nouveau/nouveau_display.c +++ b/drivers/gpu/drm/nouveau/nouveau_display.c @@ -394,7 +394,7 @@ nouveau_display_suspend(struct drm_device *dev) nouveau_display_fini(dev); - NV_INFO(drm, "unpinning framebuffer(s)...\n"); + NV_SUSPEND(drm, "unpinning framebuffer(s)...\n"); list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) { struct nouveau_framebuffer *nouveau_fb; @@ -416,7 +416,7 @@ nouveau_display_suspend(struct drm_device *dev) } void -nouveau_display_resume(struct drm_device *dev) +nouveau_display_repin(struct drm_device *dev) { struct nouveau_drm *drm = nouveau_drm(dev); struct drm_crtc *crtc; @@ -441,10 +441,12 @@ nouveau_display_resume(struct drm_device *dev) if (ret) NV_ERROR(drm, "Could not pin/map cursor.\n"); } +} - nouveau_fbcon_set_suspend(dev, 0); - nouveau_fbcon_zfill_all(dev); - +void +nouveau_display_resume(struct drm_device *dev) +{ + struct drm_crtc *crtc; nouveau_display_init(dev); /* Force CLUT to get re-loaded during modeset */ |