xf86-video-ati: vblank wait on crtc > 1
diff mbox

Message ID Pine.GSO.4.62.1103181808270.1021@umail
State New, archived
Headers show

Commit Message

Ilija Hadzic March 18, 2011, 11:10 p.m. UTC
None

Patch
diff mbox

diff --git a/src/radeon.h b/src/radeon.h
index a6d20d7..1a746c7 100644
--- a/src/radeon.h
+++ b/src/radeon.h
@@ -931,6 +931,9 @@  typedef struct {

      RADEONFBLayout    CurrentLayout;

+#ifdef RADEON_DRI2
+    Bool              high_crtc_works;
+#endif
  #ifdef XF86DRI
      Bool              directRenderingEnabled;
      Bool              directRenderingInited;
diff --git a/src/radeon_dri2.c b/src/radeon_dri2.c
index 66df03c..c461469 100644
--- a/src/radeon_dri2.c
+++ b/src/radeon_dri2.c
@@ -771,6 +771,24 @@  cleanup:
      free(event);
  }

+static drmVBlankSeqType populate_vbl_request_type(RADEONInfoPtr info, int crtc)
+{
+    int high_crtc = 0;
+    drmVBlankSeqType type = 0;
+
+    if (crtc == 1)
+        type |= DRM_VBLANK_SECONDARY;
+    else if (crtc > 1) {
+	if (info->high_crtc_works) {
+	    high_crtc = (crtc << DRM_VBLANK_HIGH_CRTC_SHIFT) &
+		DRM_VBLANK_HIGH_CRTC_MASK;
+	} else
+	    type |= DRM_VBLANK_SECONDARY;
+    }
+    type |= high_crtc;
+    return type; 
+}
+
  /*
   * Get current frame count and frame count timestamp, based on drawable's
   * crtc.
@@ -791,8 +809,7 @@  static int radeon_dri2_get_msc(DrawablePtr draw, CARD64 *ust, CARD64 *msc)
          return TRUE;
      }
      vbl.request.type = DRM_VBLANK_RELATIVE;
-    if (crtc > 0)
-        vbl.request.type |= DRM_VBLANK_SECONDARY;
+    vbl.request.type |= populate_vbl_request_type(info, crtc);
      vbl.request.sequence = 0;

      ret = drmWaitVBlank(info->dri2.drm_fd, &vbl);
@@ -855,8 +872,7 @@  static int radeon_dri2_schedule_wait_msc(ClientPtr client, DrawablePtr draw,

      /* Get current count */
      vbl.request.type = DRM_VBLANK_RELATIVE;
-    if (crtc > 0)
-        vbl.request.type |= DRM_VBLANK_SECONDARY;
+    vbl.request.type |= populate_vbl_request_type(info, crtc);
      vbl.request.sequence = 0;
      ret = drmWaitVBlank(info->dri2.drm_fd, &vbl);
      if (ret) {
@@ -882,8 +898,7 @@  static int radeon_dri2_schedule_wait_msc(ClientPtr client, DrawablePtr draw,
          if (current_msc >= target_msc)
              target_msc = current_msc;
          vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
-        if (crtc > 0)
-            vbl.request.type |= DRM_VBLANK_SECONDARY;
+	vbl.request.type |= populate_vbl_request_type(info, crtc);
          vbl.request.sequence = target_msc;
          vbl.request.signal = (unsigned long)wait_info;
          ret = drmWaitVBlank(info->dri2.drm_fd, &vbl);
@@ -903,8 +918,7 @@  static int radeon_dri2_schedule_wait_msc(ClientPtr client, DrawablePtr draw,
       * so we queue an event that will satisfy the divisor/remainder equation.
       */
      vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
-    if (crtc > 0)
-        vbl.request.type |= DRM_VBLANK_SECONDARY;
+    vbl.request.type |= populate_vbl_request_type(info, crtc);

      vbl.request.sequence = current_msc - (current_msc % divisor) +
          remainder;
@@ -1068,8 +1082,7 @@  static int radeon_dri2_schedule_swap(ClientPtr client, DrawablePtr draw,

      /* Get current count */
      vbl.request.type = DRM_VBLANK_RELATIVE;
-    if (crtc > 0)
-        vbl.request.type |= DRM_VBLANK_SECONDARY;
+    vbl.request.type |= populate_vbl_request_type(info, crtc);
      vbl.request.sequence = 0;
      ret = drmWaitVBlank(info->dri2.drm_fd, &vbl);
      if (ret) {
@@ -1111,8 +1124,7 @@  static int radeon_dri2_schedule_swap(ClientPtr client, DrawablePtr draw,
           */
          if (flip == 0)
              vbl.request.type |= DRM_VBLANK_NEXTONMISS;
-        if (crtc > 0)
-            vbl.request.type |= DRM_VBLANK_SECONDARY;
+	vbl.request.type |= populate_vbl_request_type(info, crtc);

          /* If target_msc already reached or passed, set it to
           * current_msc to ensure we return a reasonable value back
@@ -1145,8 +1157,7 @@  static int radeon_dri2_schedule_swap(ClientPtr client, DrawablePtr draw,
      vbl.request.type = DRM_VBLANK_ABSOLUTE | DRM_VBLANK_EVENT;
      if (flip == 0)
          vbl.request.type |= DRM_VBLANK_NEXTONMISS;
-    if (crtc > 0)
-        vbl.request.type |= DRM_VBLANK_SECONDARY;
+    vbl.request.type |= populate_vbl_request_type(info, crtc);

      vbl.request.sequence = current_msc - (current_msc % divisor) +
          remainder;
@@ -1217,6 +1228,7 @@  radeon_dri2_screen_init(ScreenPtr pScreen)
      DRI2InfoRec dri2_info = { 0 };
  #ifdef USE_DRI2_SCHEDULING
      const char *driverNames[1];
+    uint64_t cap_value;
  #endif

      if (!info->useEXA) {
@@ -1248,6 +1260,7 @@  radeon_dri2_screen_init(ScreenPtr pScreen)
  #endif
      dri2_info.CopyRegion = radeon_dri2_copy_region;

+    info->high_crtc_works = FALSE;
  #ifdef USE_DRI2_SCHEDULING
      if (info->dri->pKernelDRMVersion->version_minor >= 4) {
          dri2_info.version = 4;
@@ -1261,6 +1274,20 @@  radeon_dri2_screen_init(ScreenPtr pScreen)
          xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "You need a newer kernel for sync extension\n");
      }

+    if (info->drmmode.mode_res->count_crtcs > 2) {
+	if (drmGetCap(info->dri2.drm_fd, DRM_CAP_HIGH_CRTC, &cap_value)) {
+	    info->high_crtc_works = FALSE;
+	    xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "You need a newer kernel for VBLANKs on CRTC>1\n");
+	} else {
+	    if (cap_value) {
+		info->high_crtc_works = TRUE;
+	    } else {
+		xf86DrvMsg(pScrn->scrnIndex, X_WARNING, "Your kernel does not handle VBLANKs on CRTC>1\n");
+		info->high_crtc_works = FALSE;
+	    }
+	}
+    }
+
      if (pRADEONEnt->dri2_info_cnt == 0) {
  #if HAS_DIXREGISTERPRIVATEKEY
  	if (!dixRegisterPrivateKey(DRI2ClientEventsPrivateKey, PRIVATE_CLIENT, sizeof(DRI2ClientEventsRec))) {