Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux

Pull drm merge (part 1) from Dave Airlie:
 "So first of all my tree and uapi stuff has a conflict mess, its my
  fault as the nouveau stuff didn't hit -next as were trying to rebase
  regressions out of it before we merged.

  Highlights:
   - SH mobile modesetting driver and associated helpers
   - some DRM core documentation
   - i915 modesetting rework, haswell hdmi, haswell and vlv fixes, write
     combined pte writing, ilk rc6 support,
   - nouveau: major driver rework into a hw core driver, makes features
     like SLI a lot saner to implement,
   - psb: add eDP/DP support for Cedarview
   - radeon: 2 layer page tables, async VM pte updates, better PLL
     selection for > 2 screens, better ACPI interactions

  The rest is general grab bag of fixes.

  So why part 1? well I have the exynos pull req which came in a bit
  late but was waiting for me to do something they shouldn't have and it
  looks fairly safe, and David Howells has some more header cleanups
  he'd like me to pull, that seem like a good idea, but I'd like to get
  this merge out of the way so -next dosen't get blocked."

Tons of conflicts mostly due to silly include line changes, but mostly
mindless.  A few other small semantic conflicts too, noted from Dave's
pre-merged branch.

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (447 commits)
  drm/nv98/crypt: fix fuc build with latest envyas
  drm/nouveau/devinit: fixup various issues with subdev ctor/init ordering
  drm/nv41/vm: fix and enable use of "real" pciegart
  drm/nv44/vm: fix and enable use of "real" pciegart
  drm/nv04/dmaobj: fixup vm target handling in preparation for nv4x pcie
  drm/nouveau: store supported dma mask in vmmgr
  drm/nvc0/ibus: initial implementation of subdev
  drm/nouveau/therm: add support for fan-control modes
  drm/nouveau/hwmon: rename pwm0* to pmw1* to follow hwmon's rules
  drm/nouveau/therm: calculate the pwm divisor on nv50+
  drm/nouveau/fan: rewrite the fan tachometer driver to get more precision, faster
  drm/nouveau/therm: move thermal-related functions to the therm subdev
  drm/nouveau/bios: parse the pwm divisor from the perf table
  drm/nouveau/therm: use the EXTDEV table to detect i2c monitoring devices
  drm/nouveau/therm: rework thermal table parsing
  drm/nouveau/gpio: expose the PWM/TOGGLE parameter found in the gpio vbios table
  drm/nouveau: fix pm initialization order
  drm/nouveau/bios: check that fixed tvdac gpio data is valid before using it
  drm/nouveau: log channel debug/error messages from client object rather than drm client
  drm/nouveau: have drm debugging macros build on top of core macros
  ...

1 files changed, 107 insertions, 32 deletions

diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index 271ffa4fdb47..ef1b22144d37 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -293,6 +293,8 @@ int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 {
         int ret;
 
+        kref_init(&fb->refcount);
+
         ret = drm_mode_object_get(dev, &fb->base, DRM_MODE_OBJECT_FB);
         if (ret)
                 return ret;
@@ -306,6 +308,38 @@ int drm_framebuffer_init(struct drm_device *dev, struct drm_framebuffer *fb,
 }
 EXPORT_SYMBOL(drm_framebuffer_init);
 
+static void drm_framebuffer_free(struct kref *kref)
+{
+        struct drm_framebuffer *fb =
+                        container_of(kref, struct drm_framebuffer, refcount);
+        fb->funcs->destroy(fb);
+}
+
+/**
+ * drm_framebuffer_unreference - unref a framebuffer
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ */
+void drm_framebuffer_unreference(struct drm_framebuffer *fb)
+{
+        struct drm_device *dev = fb->dev;
+        DRM_DEBUG("FB ID: %d\n", fb->base.id);
+        WARN_ON(!mutex_is_locked(&dev->mode_config.mutex));
+        kref_put(&fb->refcount, drm_framebuffer_free);
+}
+EXPORT_SYMBOL(drm_framebuffer_unreference);
+
+/**
+ * drm_framebuffer_reference - incr the fb refcnt
+ */
+void drm_framebuffer_reference(struct drm_framebuffer *fb)
+{
+        DRM_DEBUG("FB ID: %d\n", fb->base.id);
+        kref_get(&fb->refcount);
+}
+EXPORT_SYMBOL(drm_framebuffer_reference);
+
 /**
  * drm_framebuffer_cleanup - remove a framebuffer object
  * @fb: framebuffer to remove
@@ -319,6 +353,32 @@ EXPORT_SYMBOL(drm_framebuffer_init);
 void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
 {
         struct drm_device *dev = fb->dev;
+        /*
+         * This could be moved to drm_framebuffer_remove(), but for
+         * debugging is nice to keep around the list of fb's that are
+         * no longer associated w/ a drm_file but are not unreferenced
+         * yet.  (i915 and omapdrm have debugfs files which will show
+         * this.)
+         */
+        drm_mode_object_put(dev, &fb->base);
+        list_del(&fb->head);
+        dev->mode_config.num_fb--;
+}
+EXPORT_SYMBOL(drm_framebuffer_cleanup);
+
+/**
+ * drm_framebuffer_remove - remove and unreference a framebuffer object
+ * @fb: framebuffer to remove
+ *
+ * LOCKING:
+ * Caller must hold mode config lock.
+ *
+ * Scans all the CRTCs and planes in @dev's mode_config.  If they're
+ * using @fb, removes it, setting it to NULL.
+ */
+void drm_framebuffer_remove(struct drm_framebuffer *fb)
+{
+        struct drm_device *dev = fb->dev;
         struct drm_crtc *crtc;
         struct drm_plane *plane;
         struct drm_mode_set set;
@@ -349,11 +409,11 @@ void drm_framebuffer_cleanup(struct drm_framebuffer *fb)
                 }
         }
 
-        drm_mode_object_put(dev, &fb->base);
-        list_del(&fb->head);
-        dev->mode_config.num_fb--;
+        list_del(&fb->filp_head);
+
+        drm_framebuffer_unreference(fb);
 }
-EXPORT_SYMBOL(drm_framebuffer_cleanup);
+EXPORT_SYMBOL(drm_framebuffer_remove);
 
 /**
  * drm_crtc_init - Initialise a new CRTC object
@@ -376,6 +436,7 @@ int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 
         crtc->dev = dev;
         crtc->funcs = funcs;
+        crtc->invert_dimensions = false;
 
         mutex_lock(&dev->mode_config.mutex);
 
@@ -1030,11 +1091,7 @@ void drm_mode_config_cleanup(struct drm_device *dev)
         }
 
         list_for_each_entry_safe(fb, fbt, &dev->mode_config.fb_list, head) {
-                fb->funcs->destroy(fb);
-        }
-
-        list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
-                crtc->funcs->destroy(crtc);
+                drm_framebuffer_remove(fb);
         }
 
         list_for_each_entry_safe(plane, plt, &dev->mode_config.plane_list,
@@ -1042,6 +1099,10 @@ void drm_mode_config_cleanup(struct drm_device *dev)
                 plane->funcs->destroy(plane);
         }
 
+        list_for_each_entry_safe(crtc, ct, &dev->mode_config.crtc_list, head) {
+                crtc->funcs->destroy(crtc);
+        }
+
         idr_remove_all(&dev->mode_config.crtc_idr);
         idr_destroy(&dev->mode_config.crtc_idr);
 }
@@ -1851,6 +1912,7 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
         DRM_DEBUG_KMS("[CRTC:%d]\n", crtc->base.id);
 
         if (crtc_req->mode_valid) {
+                int hdisplay, vdisplay;
                 /* If we have a mode we need a framebuffer. */
                 /* If we pass -1, set the mode with the currently bound fb */
                 if (crtc_req->fb_id == -1) {
@@ -1886,14 +1948,20 @@ int drm_mode_setcrtc(struct drm_device *dev, void *data,
 
                 drm_mode_set_crtcinfo(mode, CRTC_INTERLACE_HALVE_V);
 
-                if (mode->hdisplay > fb->width ||
-                    mode->vdisplay > fb->height ||
-                    crtc_req->x > fb->width - mode->hdisplay ||
-                    crtc_req->y > fb->height - mode->vdisplay) {
-                        DRM_DEBUG_KMS("Invalid CRTC viewport %ux%u+%u+%u for fb size %ux%u.\n",
-                                      mode->hdisplay, mode->vdisplay,
-                                      crtc_req->x, crtc_req->y,
-                                      fb->width, fb->height);
+                hdisplay = mode->hdisplay;
+                vdisplay = mode->vdisplay;
+
+                if (crtc->invert_dimensions)
+                        swap(hdisplay, vdisplay);
+
+                if (hdisplay > fb->width ||
+                    vdisplay > fb->height ||
+                    crtc_req->x > fb->width - hdisplay ||
+                    crtc_req->y > fb->height - vdisplay) {
+                        DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
+                                      fb->width, fb->height,
+                                      hdisplay, vdisplay, crtc_req->x, crtc_req->y,
+                                      crtc->invert_dimensions ? " (inverted)" : "");
                         ret = -ENOSPC;
                         goto out;
                 }
@@ -2168,6 +2236,8 @@ static int format_check(const struct drm_mode_fb_cmd2 *r)
         case DRM_FORMAT_NV21:
         case DRM_FORMAT_NV16:
         case DRM_FORMAT_NV61:
+        case DRM_FORMAT_NV24:
+        case DRM_FORMAT_NV42:
         case DRM_FORMAT_YUV410:
         case DRM_FORMAT_YVU410:
         case DRM_FORMAT_YUV411:
@@ -2334,11 +2404,7 @@ int drm_mode_rmfb(struct drm_device *dev,
                 goto out;
         }
 
-        /* TODO release all crtc connected to the framebuffer */
-        /* TODO unhock the destructor from the buffer object */
-
-        list_del(&fb->filp_head);
-        fb->funcs->destroy(fb);
+        drm_framebuffer_remove(fb);
 
 out:
         mutex_unlock(&dev->mode_config.mutex);
@@ -2488,8 +2554,7 @@ void drm_fb_release(struct drm_file *priv)
 
         mutex_lock(&dev->mode_config.mutex);
         list_for_each_entry_safe(fb, tfb, &priv->fbs, filp_head) {
-                list_del(&fb->filp_head);
-                fb->funcs->destroy(fb);
+                drm_framebuffer_remove(fb);
         }
         mutex_unlock(&dev->mode_config.mutex);
 }
@@ -3488,6 +3553,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
         struct drm_framebuffer *fb;
         struct drm_pending_vblank_event *e = NULL;
         unsigned long flags;
+        int hdisplay, vdisplay;
         int ret = -EINVAL;
 
         if (page_flip->flags & ~DRM_MODE_PAGE_FLIP_FLAGS ||
@@ -3517,14 +3583,19 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
                 goto out;
         fb = obj_to_fb(obj);
 
-        if (crtc->mode.hdisplay > fb->width ||
-            crtc->mode.vdisplay > fb->height ||
-            crtc->x > fb->width - crtc->mode.hdisplay ||
-            crtc->y > fb->height - crtc->mode.vdisplay) {
-                DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d.\n",
-                              fb->width, fb->height,
-                              crtc->mode.hdisplay, crtc->mode.vdisplay,
-                              crtc->x, crtc->y);
+        hdisplay = crtc->mode.hdisplay;
+        vdisplay = crtc->mode.vdisplay;
+
+        if (crtc->invert_dimensions)
+                swap(hdisplay, vdisplay);
+
+        if (hdisplay > fb->width ||
+            vdisplay > fb->height ||
+            crtc->x > fb->width - hdisplay ||
+            crtc->y > fb->height - vdisplay) {
+                DRM_DEBUG_KMS("Invalid fb size %ux%u for CRTC viewport %ux%u+%d+%d%s.\n",
+                              fb->width, fb->height, hdisplay, vdisplay, crtc->x, crtc->y,
+                              crtc->invert_dimensions ? " (inverted)" : "");
                 ret = -ENOSPC;
                 goto out;
         }
@@ -3717,6 +3788,8 @@ int drm_format_num_planes(uint32_t format)
         case DRM_FORMAT_NV21:
         case DRM_FORMAT_NV16:
         case DRM_FORMAT_NV61:
+        case DRM_FORMAT_NV24:
+        case DRM_FORMAT_NV42:
                 return 2;
         default:
                 return 1;
@@ -3750,6 +3823,8 @@ int drm_format_plane_cpp(uint32_t format, int plane)
         case DRM_FORMAT_NV21:
         case DRM_FORMAT_NV16:
         case DRM_FORMAT_NV61:
+        case DRM_FORMAT_NV24:
+        case DRM_FORMAT_NV42:
                 return plane ? 2 : 1;
         case DRM_FORMAT_YUV410:
         case DRM_FORMAT_YVU410: