drm/nv50/disp: move sync routine to where it can be used by other modules

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

diff --git a/drivers/gpu/drm/nouveau/nv50_crtc.c b/drivers/gpu/drm/nouveau/nv50_crtc.c
index e426a9b9865a4f512902c67cdc1e2422ddc1cda6..f794b4e08f5f2ff9288e52a712fff4e62c840c4b 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_crtc.c
+++ b/drivers/gpu/drm/nouveau/nv50_crtc.c
@@ -38,39 +38,6 @@
 #include "nouveau_connector.h"
 #include "nv50_display.h"
 
-static int
-nv50_crtc_wait_complete(struct drm_crtc *crtc)
-{
-       struct drm_device *dev = crtc->dev;
-       struct drm_nouveau_private *dev_priv = dev->dev_private;
-       struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
-       struct nv50_display *disp = nv50_display(dev);
-       struct nouveau_channel *evo = disp->master;
-       u64 start;
-       int ret;
-
-       ret = RING_SPACE(evo, 6);
-       if (ret)
-               return ret;
-       BEGIN_RING(evo, 0, 0x0084, 1);
-       OUT_RING  (evo, 0x80000000);
-       BEGIN_RING(evo, 0, 0x0080, 1);
-       OUT_RING  (evo, 0);
-       BEGIN_RING(evo, 0, 0x0084, 1);
-       OUT_RING  (evo, 0x00000000);
-
-       nv_wo32(disp->ntfy, 0x000, 0x00000000);
-       FIRE_RING (evo);
-
-       start = ptimer->read(dev);
-       do {
-               if (nv_ro32(disp->ntfy, 0x000))
-                       return 0;
-       } while (ptimer->read(dev) - start < 2000000000ULL);
-
-       return -EBUSY;
-}
-
 static void
 nv50_crtc_lut_load(struct drm_crtc *crtc)
 {
@@ -303,7 +270,7 @@ nv50_crtc_set_scale(struct nouveau_crtc *nv_crtc, int scaling_mode, bool update)
 
        if (update) {
                nv50_display_flip_stop(crtc);
-               nv50_crtc_wait_complete(crtc);
+               nv50_display_sync(dev);
                nv50_display_flip_next(crtc, crtc->fb, NULL);
        }
 
@@ -515,7 +482,7 @@ nv50_crtc_commit(struct drm_crtc *crtc)
 
        nv50_crtc_blank(nv_crtc, false);
        drm_vblank_post_modeset(dev, nv_crtc->index);
-       nv50_crtc_wait_complete(crtc);
+       nv50_display_sync(dev);
        nv50_display_flip_next(crtc, crtc->fb, NULL);
 }
 
@@ -710,7 +677,7 @@ nv50_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y,
        if (ret)
                return ret;
 
-       ret = nv50_crtc_wait_complete(crtc);
+       ret = nv50_display_sync(crtc->dev);
        if (ret)
                return ret;
 
@@ -729,7 +696,7 @@ nv50_crtc_mode_set_base_atomic(struct drm_crtc *crtc,
        if (ret)
                return ret;
 
-       return nv50_crtc_wait_complete(crtc);
+       return nv50_display_sync(crtc->dev);
 }
 
 static const struct drm_crtc_helper_funcs nv50_crtc_helper_funcs = {

diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 06de250fe617df89ad4e05a34d3e05be8907f126..80b220f4b12587b3d2c114aa4e7fb31adaa77ac7 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -61,6 +61,38 @@ nv50_display_late_takedown(struct drm_device *dev)
 {
 }
 
+int
+nv50_display_sync(struct drm_device *dev)
+{
+       struct drm_nouveau_private *dev_priv = dev->dev_private;
+       struct nouveau_timer_engine *ptimer = &dev_priv->engine.timer;
+       struct nv50_display *disp = nv50_display(dev);
+       struct nouveau_channel *evo = disp->master;
+       u64 start;
+       int ret;
+
+       ret = RING_SPACE(evo, 6);
+       if (ret == 0) {
+               BEGIN_RING(evo, 0, 0x0084, 1);
+               OUT_RING  (evo, 0x80000000);
+               BEGIN_RING(evo, 0, 0x0080, 1);
+               OUT_RING  (evo, 0);
+               BEGIN_RING(evo, 0, 0x0084, 1);
+               OUT_RING  (evo, 0x00000000);
+
+               nv_wo32(disp->ntfy, 0x000, 0x00000000);
+               FIRE_RING (evo);
+
+               start = ptimer->read(dev);
+               do {
+                       if (nv_ro32(disp->ntfy, 0x000))
+                               return 0;
+               } while (ptimer->read(dev) - start < 2000000000ULL);
+       }
+
+       return -EBUSY;
+}
+
 int
 nv50_display_init(struct drm_device *dev)
 {

diff --git a/drivers/gpu/drm/nouveau/nv50_display.h b/drivers/gpu/drm/nouveau/nv50_display.h
index c2da503a22aa589bac21db214130ede72aebb8bf..0cd8819a53f66f88d990e9f2ffccff592ce0b733 100644 (file)
--- a/drivers/gpu/drm/nouveau/nv50_display.h
+++ b/drivers/gpu/drm/nouveau/nv50_display.h
@@ -73,6 +73,7 @@ void nv50_display_destroy(struct drm_device *dev);
 int nv50_crtc_blank(struct nouveau_crtc *, bool blank);
 int nv50_crtc_set_clock(struct drm_device *, int head, int pclk);
 
+int  nv50_display_sync(struct drm_device *);
 int  nv50_display_flip_next(struct drm_crtc *, struct drm_framebuffer *,
                            struct nouveau_channel *chan);
 void nv50_display_flip_stop(struct drm_crtc *);