Call DRM_IOCTL_MODESET_CTL ioctl to avoid problems with DRM post vblank-rework.

3 files changed, 39 insertions, 8 deletions

diff --git a/src/legacy_crtc.c b/src/legacy_crtc.c
index 489fecf6..590a445d 100644
--- a/src/legacy_crtc.c
+++ b/src/legacy_crtc.c
@@ -51,6 +51,9 @@
 #include "radeon_dri.h"
 #include "radeon_sarea.h"
 #include "sarea.h"
+#ifdef DRM_IOCTL_MODESET_CTL
+#include <sys/ioctl.h>
+#endif
 #endif
 
 /* Write common registers */
@@ -615,6 +618,21 @@ RADEONSavePLL2Registers(ScrnInfoPtr pScrn, RADEONSavePtr save)
 }
 
 void
+radeon_crtc_modeset_ioctl(xf86CrtcPtr crtc, Bool post)
+{
+#if defined(XF86DRI) && defined(DRM_IOCTL_MODESET_CTL)
+    RADEONInfoPtr info = RADEONPTR(crtc->scrn);
+    RADEONCrtcPrivatePtr radeon_crtc = crtc->driver_private;
+    struct drm_modeset_ctl modeset;
+
+    modeset.crtc = radeon_crtc->crtc_id;
+    modeset.cmd = post ? _DRM_POST_MODESET : _DRM_PRE_MODESET;
+
+    ioctl(info->drmFD, DRM_IOCTL_MODESET_CTL, &modeset);
+#endif
+}
+
+void
 legacy_crtc_dpms(xf86CrtcPtr crtc, int mode)
 {
     int mask;
@@ -625,6 +643,8 @@ legacy_crtc_dpms(xf86CrtcPtr crtc, int mode)
 
     mask = radeon_crtc->crtc_id ? (RADEON_CRTC2_DISP_DIS | RADEON_CRTC2_VSYNC_DIS | RADEON_CRTC2_HSYNC_DIS | RADEON_CRTC2_DISP_REQ_EN_B) : (RADEON_CRTC_DISPLAY_DIS | RADEON_CRTC_HSYNC_DIS | RADEON_CRTC_VSYNC_DIS);
 
+    if (mode == DPMSModeOff)
+	radeon_crtc_modeset_ioctl(crtc, FALSE);
 
     switch(mode) {
     case DPMSModeOn:
@@ -661,8 +681,10 @@ legacy_crtc_dpms(xf86CrtcPtr crtc, int mode)
 	break;
     }
   
-    if (mode != DPMSModeOff)
+    if (mode != DPMSModeOff) {
+	radeon_crtc_modeset_ioctl(crtc, TRUE);
 	radeon_crtc_load_lut(crtc);
+    }
 }
 
 
diff --git a/src/radeon.h b/src/radeon.h
index a5c0cd63..94611a8a 100644
--- a/src/radeon.h
+++ b/src/radeon.h
@@ -881,6 +881,7 @@ extern void RADEONWaitForIdleMMIO(ScrnInfoPtr pScrn);
 
 /* radeon_crtc.c */
 extern void radeon_crtc_load_lut(xf86CrtcPtr crtc);
+extern void radeon_crtc_modeset_ioctl(xf86CrtcPtr crtc, Bool post);
 extern Bool RADEONAllocateControllers(ScrnInfoPtr pScrn, int mask);
 extern void RADEONBlank(ScrnInfoPtr pScrn);
 extern void RADEONComputePLL(RADEONPLLPtr pll, unsigned long freq,
diff --git a/src/radeon_driver.c b/src/radeon_driver.c
index cb460230..64010fa4 100644
--- a/src/radeon_driver.c
+++ b/src/radeon_driver.c
@@ -5321,6 +5321,8 @@ Bool RADEONEnterVT(int scrnIndex, int flags)
     RADEONInfoPtr  info  = RADEONPTR(pScrn);
     unsigned char *RADEONMMIO = info->MMIO;
     uint32_t mem_size;
+    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
+    int i;
 
     xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, RADEON_LOGLEVEL_DEBUG,
 		   "RADEONEnterVT\n");
@@ -5368,6 +5370,9 @@ Bool RADEONEnterVT(int scrnIndex, int flags)
     if (IS_R300_VARIANT || IS_RV100_VARIANT)
 	RADEONForceSomeClocks(pScrn);
 
+    for (i = 0; i < config->num_crtc; i++)
+	radeon_crtc_modeset_ioctl(config->crtc[i], TRUE);
+
     pScrn->vtSema = TRUE;
 
     if (!xf86SetDesiredModes(pScrn))
@@ -5416,10 +5421,8 @@ void RADEONLeaveVT(int scrnIndex, int flags)
 {
     ScrnInfoPtr    pScrn = xf86Screens[scrnIndex];
     RADEONInfoPtr  info  = RADEONPTR(pScrn);
-#ifndef HAVE_FREE_SHADOW
-    xf86CrtcConfigPtr   config = XF86_CRTC_CONFIG_PTR(pScrn);
-    int o;
-#endif
+    xf86CrtcConfigPtr config = XF86_CRTC_CONFIG_PTR(pScrn);
+    int i;
 
     xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, RADEON_LOGLEVEL_DEBUG,
 		   "RADEONLeaveVT\n");
@@ -5442,7 +5445,9 @@ void RADEONLeaveVT(int scrnIndex, int flags)
 	    RADEONSAREAPrivPtr pSAREAPriv =
 		(RADEONSAREAPrivPtr)DRIGetSAREAPrivate(pScrn->pScreen);
 	    drmTextureRegionPtr list = pSAREAPriv->texList[0];
-	    int age = ++pSAREAPriv->texAge[0], i = 0;
+	    int age = ++pSAREAPriv->texAge[0];
+
+	    i = 0;
 
 	    do {
 		list[i].age = age;
@@ -5453,8 +5458,8 @@ void RADEONLeaveVT(int scrnIndex, int flags)
 #endif
 
 #ifndef HAVE_FREE_SHADOW
-    for (o = 0; o < config->num_crtc; o++) {
-	xf86CrtcPtr crtc = config->crtc[o];
+    for (i = 0; i < config->num_crtc; i++) {
+	xf86CrtcPtr crtc = config->crtc[i];
 
 	if (crtc->rotatedPixmap || crtc->rotatedData) {
 	    crtc->funcs->shadow_destroy(crtc, crtc->rotatedPixmap,
@@ -5471,6 +5476,9 @@ void RADEONLeaveVT(int scrnIndex, int flags)
 
     RADEONRestore(pScrn);
 
+    for (i = 0; i < config->num_crtc; i++)
+	radeon_crtc_modeset_ioctl(config->crtc[i], FALSE);
+
     xf86DrvMsgVerb(pScrn->scrnIndex, X_INFO, RADEON_LOGLEVEL_DEBUG,
 		   "Ok, leaving now...\n");
 }