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path: root/drivers/gpu/drm/radeon/radeon_display.c
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Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_display.c')
-rw-r--r--drivers/gpu/drm/radeon/radeon_display.c46
1 files changed, 39 insertions, 7 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_display.c b/drivers/gpu/drm/radeon/radeon_display.c
index 7b253815a323..d680608f6f5b 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -306,7 +306,7 @@ void radeon_crtc_handle_flip(struct radeon_device *rdev, int crtc_id)
* to complete in this vblank?
*/
if (update_pending &&
- (DRM_SCANOUTPOS_VALID & radeon_get_crtc_scanoutpos(rdev->ddev, crtc_id,
+ (DRM_SCANOUTPOS_VALID & radeon_get_crtc_scanoutpos(rdev->ddev, crtc_id, 0,
&vpos, &hpos, NULL, NULL)) &&
((vpos >= (99 * rdev->mode_info.crtcs[crtc_id]->base.hwmode.crtc_vdisplay)/100) ||
(vpos < 0 && !ASIC_IS_AVIVO(rdev)))) {
@@ -1464,12 +1464,22 @@ int radeon_modeset_init(struct radeon_device *rdev)
/* setup afmt */
radeon_afmt_init(rdev);
- /* Initialize power management */
- radeon_pm_init(rdev);
-
radeon_fbdev_init(rdev);
drm_kms_helper_poll_init(rdev->ddev);
+ if (rdev->pm.dpm_enabled) {
+ /* do dpm late init */
+ ret = radeon_pm_late_init(rdev);
+ if (ret) {
+ rdev->pm.dpm_enabled = false;
+ DRM_ERROR("radeon_pm_late_init failed, disabling dpm\n");
+ }
+ /* set the dpm state for PX since there won't be
+ * a modeset to call this.
+ */
+ radeon_pm_compute_clocks(rdev);
+ }
+
return 0;
}
@@ -1477,7 +1487,6 @@ void radeon_modeset_fini(struct radeon_device *rdev)
{
radeon_fbdev_fini(rdev);
kfree(rdev->mode_info.bios_hardcoded_edid);
- radeon_pm_fini(rdev);
if (rdev->mode_info.mode_config_initialized) {
radeon_afmt_fini(rdev);
@@ -1601,6 +1610,7 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
*
* \param dev Device to query.
* \param crtc Crtc to query.
+ * \param flags Flags from caller (DRM_CALLED_FROM_VBLIRQ or 0).
* \param *vpos Location where vertical scanout position should be stored.
* \param *hpos Location where horizontal scanout position should go.
* \param *stime Target location for timestamp taken immediately before
@@ -1622,8 +1632,8 @@ bool radeon_crtc_scaling_mode_fixup(struct drm_crtc *crtc,
* unknown small number of scanlines wrt. real scanout position.
*
*/
-int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, int *vpos, int *hpos,
- ktime_t *stime, ktime_t *etime)
+int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, unsigned int flags,
+ int *vpos, int *hpos, ktime_t *stime, ktime_t *etime)
{
u32 stat_crtc = 0, vbl = 0, position = 0;
int vbl_start, vbl_end, vtotal, ret = 0;
@@ -1765,5 +1775,27 @@ int radeon_get_crtc_scanoutpos(struct drm_device *dev, int crtc, int *vpos, int
if (in_vbl)
ret |= DRM_SCANOUTPOS_INVBL;
+ /* Is vpos outside nominal vblank area, but less than
+ * 1/100 of a frame height away from start of vblank?
+ * If so, assume this isn't a massively delayed vblank
+ * interrupt, but a vblank interrupt that fired a few
+ * microseconds before true start of vblank. Compensate
+ * by adding a full frame duration to the final timestamp.
+ * Happens, e.g., on ATI R500, R600.
+ *
+ * We only do this if DRM_CALLED_FROM_VBLIRQ.
+ */
+ if ((flags & DRM_CALLED_FROM_VBLIRQ) && !in_vbl) {
+ vbl_start = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vdisplay;
+ vtotal = rdev->mode_info.crtcs[crtc]->base.hwmode.crtc_vtotal;
+
+ if (vbl_start - *vpos < vtotal / 100) {
+ *vpos -= vtotal;
+
+ /* Signal this correction as "applied". */
+ ret |= 0x8;
+ }
+ }
+
return ret;
}