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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/core/include | |
parent | 13bb9cc8726c716a7f271fc2c760ba15e1fdd38c (diff) | |
download | op-kernel-dev-5addcf0a5f0fadceba6bd562d0616a1c5d4c1a4d.zip op-kernel-dev-5addcf0a5f0fadceba6bd562d0616a1c5d4c1a4d.tar.gz |
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/core/include')
-rw-r--r-- | drivers/gpu/drm/nouveau/core/include/core/printk.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/gpu/drm/nouveau/core/include/core/printk.h b/drivers/gpu/drm/nouveau/core/include/core/printk.h index febed2e..d87836e 100644 --- a/drivers/gpu/drm/nouveau/core/include/core/printk.h +++ b/drivers/gpu/drm/nouveau/core/include/core/printk.h @@ -15,6 +15,12 @@ struct nouveau_object; #define NV_PRINTK_TRACE KERN_DEBUG #define NV_PRINTK_SPAM KERN_DEBUG +extern int nv_printk_suspend_level; + +#define NV_DBG_SUSPEND (nv_printk_suspend_level) +#define NV_PRINTK_SUSPEND (nv_printk_level_to_pfx(nv_printk_suspend_level)) + +const char *nv_printk_level_to_pfx(int level); void __printf(4, 5) nv_printk_(struct nouveau_object *, const char *, int, const char *, ...); @@ -31,6 +37,13 @@ nv_printk_(struct nouveau_object *, const char *, int, const char *, ...); #define nv_trace(o,f,a...) nv_printk((o), TRACE, f, ##a) #define nv_spam(o,f,a...) nv_printk((o), SPAM, f, ##a) +#define nv_suspend(o,f,a...) nv_printk((o), SUSPEND, f, ##a) + +static inline void nv_suspend_set_printk_level(int level) +{ + nv_printk_suspend_level = level; +} + #define nv_assert(f,a...) do { \ if (NV_DBG_FATAL <= CONFIG_NOUVEAU_DEBUG) \ nv_printk_(NULL, NV_PRINTK_FATAL, NV_DBG_FATAL, f "\n", ##a); \ |