| 33,7 → 33,7 |
|---|
| * OTHER DEALINGS IN THE SOFTWARE. |
| */ |
| |
| #include "drmP.h" |
| #include <drm/drmP.h> |
| #include <asm/div64.h> |
| //#include "drm_trace.h" |
| |
| 41,6 → 41,7 |
|---|
| #include <linux/slab.h> |
| |
| //#include <linux/vgaarb.h> |
| #include <linux/export.h> |
| |
| /* Access macro for slots in vblank timestamp ringbuffer. */ |
| #define vblanktimestamp(dev, crtc, count) ( \ |
| 134,3 → 135,52 |
|---|
| (int) linedur_ns, (int) pixeldur_ns); |
| } |
| |
| |
| /** |
| * drm_vblank_pre_modeset - account for vblanks across mode sets |
| * @dev: DRM device |
| * @crtc: CRTC in question |
| * |
| * Account for vblank events across mode setting events, which will likely |
| * reset the hardware frame counter. |
| */ |
| void drm_vblank_pre_modeset(struct drm_device *dev, int crtc) |
| { |
| #if 0 |
| /* vblank is not initialized (IRQ not installed ?) */ |
| if (!dev->num_crtcs) |
| return; |
| /* |
| * To avoid all the problems that might happen if interrupts |
| * were enabled/disabled around or between these calls, we just |
| * have the kernel take a reference on the CRTC (just once though |
| * to avoid corrupting the count if multiple, mismatch calls occur), |
| * so that interrupts remain enabled in the interim. |
| */ |
| if (!dev->vblank_inmodeset[crtc]) { |
| dev->vblank_inmodeset[crtc] = 0x1; |
| if (drm_vblank_get(dev, crtc) == 0) |
| dev->vblank_inmodeset[crtc] |= 0x2; |
| } |
| #endif |
| } |
| EXPORT_SYMBOL(drm_vblank_pre_modeset); |
| |
| void drm_vblank_post_modeset(struct drm_device *dev, int crtc) |
| { |
| #if 0 |
| unsigned long irqflags; |
| |
| if (dev->vblank_inmodeset[crtc]) { |
| spin_lock_irqsave(&dev->vbl_lock, irqflags); |
| dev->vblank_disable_allowed = 1; |
| spin_unlock_irqrestore(&dev->vbl_lock, irqflags); |
| |
| if (dev->vblank_inmodeset[crtc] & 0x2) |
| drm_vblank_put(dev, crtc); |
| |
| dev->vblank_inmodeset[crtc] = 0; |
| } |
| #endif |
| } |
| EXPORT_SYMBOL(drm_vblank_post_modeset); |