On Wed, Mar 26, 2014 at 12:09 AM, Dave Airlie <airlied@xxxxxxxxx> wrote:
> From: Dave Airlie <airlied@xxxxxxxxxx>
>
> If we were on a non-optimus device, we'd return -EINVAL, this would
> lead to the over engineered runtime pm system to go into an error
> state, subsequent get_sync's would fail, so we'd never be able
> to open the device again.
>
> (like really get_sync shouldn't fail if the device isn't powered
> down).
Any chance you'd want to spin similar patches for radeon?
Reviewed-by: Alex Deucher <alexander.deucher@xxxxxxx>
>
> Signed-off-by: Dave Airlie <airlied@xxxxxxxxxx>
> ---
> drivers/gpu/drm/nouveau/nouveau_drm.c | 14 ++++++++++----
> 1 file changed, 10 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/gpu/drm/nouveau/nouveau_drm.c b/drivers/gpu/drm/nouveau/nouveau_drm.c
> index 89c484d..4ee702a 100644
> --- a/drivers/gpu/drm/nouveau/nouveau_drm.c
> +++ b/drivers/gpu/drm/nouveau/nouveau_drm.c
> @@ -866,13 +866,16 @@ static int nouveau_pmops_runtime_suspend(struct device *dev)
> struct drm_device *drm_dev = pci_get_drvdata(pdev);
> int ret;
>
> - if (nouveau_runtime_pm == 0)
> - return -EINVAL;
> + if (nouveau_runtime_pm == 0) {
> + pm_runtime_forbid(dev);
> + return -EBUSY;
> + }
>
> /* are we optimus enabled? */
> if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
> DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
> - return -EINVAL;
> + pm_runtime_forbid(dev);
> + return -EBUSY;
> }
>
> nv_debug_level(SILENT);
> @@ -923,12 +926,15 @@ static int nouveau_pmops_runtime_idle(struct device *dev)
> struct nouveau_drm *drm = nouveau_drm(drm_dev);
> struct drm_crtc *crtc;
>
> - if (nouveau_runtime_pm == 0)
> + if (nouveau_runtime_pm == 0) {
> + pm_runtime_forbid(dev);
> return -EBUSY;
> + }
>
> /* are we optimus enabled? */
> if (nouveau_runtime_pm == -1 && !nouveau_is_optimus() && !nouveau_is_v1_dsm()) {
> DRM_DEBUG_DRIVER("failing to power off - not optimus\n");
> + pm_runtime_forbid(dev);
> return -EBUSY;
> }
>
> --
> 1.8.3.1
>
> _______________________________________________
> dri-devel mailing list
> dri-devel@xxxxxxxxxxxxxxxxxxxxx
> http://lists.freedesktop.org/mailman/listinfo/dri-devel
_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/dri-devel
