| Message ID | 1372283722-12988-9-git-send-email-rodrigo.vivi@gmail.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Wed, Jun 26, 2013 at 06:55:20PM -0300, Rodrigo Vivi wrote: > This global value allows userspace know when PSR is enabled and active, > i.e. in SRD entry state. > This will allow userspace emit more busy_ioctl when doing directly copy_area > operations through scanout allowing forced psr exit. I don't want PSR_ACTIVE, but PSR_ENABLED. I'd rather check once after updating the mode configuration instead of everytime the ddx is about to sleep. -Chris
diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c index adb319b..de20c4a 100644 --- a/drivers/gpu/drm/i915/i915_dma.c +++ b/drivers/gpu/drm/i915/i915_dma.c @@ -1000,6 +1000,9 @@ static int i915_getparam(struct drm_device *dev, void *data, case I915_PARAM_HAS_EXEC_HANDLE_LUT: value = 1; break; + case I915_PARAM_PSR_ACTIVE: + value = I915_READ(EDP_PSR_STATUS_CTL) & EDP_PSR_STATUS_STATE_SRDENT; + break; default: DRM_DEBUG("Unknown parameter %d\n", param->param); return -EINVAL; diff --git a/include/uapi/drm/i915_drm.h b/include/uapi/drm/i915_drm.h index 923ed7f..191a7fc 100644 --- a/include/uapi/drm/i915_drm.h +++ b/include/uapi/drm/i915_drm.h @@ -310,6 +310,7 @@ typedef struct drm_i915_irq_wait { #define I915_PARAM_HAS_PINNED_BATCHES 24 #define I915_PARAM_HAS_EXEC_NO_RELOC 25 #define I915_PARAM_HAS_EXEC_HANDLE_LUT 26 +#define I915_PARAM_PSR_ACTIVE 27 typedef struct drm_i915_getparam { int param;
This global value allows userspace know when PSR is enabled and active, i.e. in SRD entry state. This will allow userspace emit more busy_ioctl when doing directly copy_area operations through scanout allowing forced psr exit. Signed-off-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> --- drivers/gpu/drm/i915/i915_dma.c | 3 +++ include/uapi/drm/i915_drm.h | 1 + 2 files changed, 4 insertions(+)