Merge branch 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6

* 'drm-for-2.6.35' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6: (207 commits)
  drm/radeon/kms/pm/r600: select the mid clock mode for single head low profile
  drm/radeon: fix power supply kconfig interaction.
  drm/radeon/kms: record object that have been list reserved
  drm/radeon: AGP memory is only I/O if the aperture can be mapped by the CPU.
  drm/radeon/kms: don't default display priority to high on rs4xx
  drm/edid: fix typo in 1600x1200@75 mode
  drm/nouveau: fix i2c-related init table handlers
  drm/nouveau: support init table i2c device identifier 0x81
  drm/nouveau: ensure we've parsed i2c table entry for INIT_*I2C* handlers
  drm/nouveau: display error message for any failed init table opcode
  drm/nouveau: fix init table handlers to return proper error codes
  drm/nv50: support fractional feedback divider on newer chips
  drm/nv50: fix monitor detection on certain chipsets
  drm/nv50: store full dcb i2c entry from vbios
  drm/nv50: fix suspend/resume with DP outputs
  drm/nv50: output calculated crtc pll when debugging on
  drm/nouveau: dump pll limits entries when debugging is on
  drm/nouveau: bios parser fixes for eDP boards
  drm/nouveau: fix a nouveau_bo dereference after it's been destroyed
  drm/nv40: remove some completed ctxprog TODOs
  ...

1 files changed, 43 insertions, 23 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_ring.c b/drivers/gpu/drm/radeon/radeon_ring.c
index f6e1e8d4d986..261e98a276db 100644
--- a/drivers/gpu/drm/radeon/radeon_ring.c
+++ b/drivers/gpu/drm/radeon/radeon_ring.c
@@ -219,24 +219,26 @@ int radeon_ib_pool_init(struct radeon_device *rdev)
 void radeon_ib_pool_fini(struct radeon_device *rdev)
 {
         int r;
+        struct radeon_bo *robj;
 
         if (!rdev->ib_pool.ready) {
                 return;
         }
         mutex_lock(&rdev->ib_pool.mutex);
         radeon_ib_bogus_cleanup(rdev);
+        robj = rdev->ib_pool.robj;
+        rdev->ib_pool.robj = NULL;
+        mutex_unlock(&rdev->ib_pool.mutex);
 
-        if (rdev->ib_pool.robj) {
-                r = radeon_bo_reserve(rdev->ib_pool.robj, false);
+        if (robj) {
+                r = radeon_bo_reserve(robj, false);
                 if (likely(r == 0)) {
-                        radeon_bo_kunmap(rdev->ib_pool.robj);
-                        radeon_bo_unpin(rdev->ib_pool.robj);
-                        radeon_bo_unreserve(rdev->ib_pool.robj);
+                        radeon_bo_kunmap(robj);
+                        radeon_bo_unpin(robj);
+                        radeon_bo_unreserve(robj);
                 }
-                radeon_bo_unref(&rdev->ib_pool.robj);
-                rdev->ib_pool.robj = NULL;
+                radeon_bo_unref(&robj);
         }
-        mutex_unlock(&rdev->ib_pool.mutex);
 }
 
 
@@ -258,31 +260,41 @@ void radeon_ring_free_size(struct radeon_device *rdev)
         }
 }
 
-int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw)
+int radeon_ring_alloc(struct radeon_device *rdev, unsigned ndw)
 {
         int r;
 
         /* Align requested size with padding so unlock_commit can
          * pad safely */
         ndw = (ndw + rdev->cp.align_mask) & ~rdev->cp.align_mask;
-        mutex_lock(&rdev->cp.mutex);
         while (ndw > (rdev->cp.ring_free_dw - 1)) {
                 radeon_ring_free_size(rdev);
                 if (ndw < rdev->cp.ring_free_dw) {
                         break;
                 }
                 r = radeon_fence_wait_next(rdev);
-                if (r) {
-                        mutex_unlock(&rdev->cp.mutex);
+                if (r)
                         return r;
-                }
         }
         rdev->cp.count_dw = ndw;
         rdev->cp.wptr_old = rdev->cp.wptr;
         return 0;
 }
 
-void radeon_ring_unlock_commit(struct radeon_device *rdev)
+int radeon_ring_lock(struct radeon_device *rdev, unsigned ndw)
+{
+        int r;
+
+        mutex_lock(&rdev->cp.mutex);
+        r = radeon_ring_alloc(rdev, ndw);
+        if (r) {
+                mutex_unlock(&rdev->cp.mutex);
+                return r;
+        }
+        return 0;
+}
+
+void radeon_ring_commit(struct radeon_device *rdev)
 {
         unsigned count_dw_pad;
         unsigned i;
@@ -295,6 +307,11 @@ void radeon_ring_unlock_commit(struct radeon_device *rdev)
         }
         DRM_MEMORYBARRIER();
         radeon_cp_commit(rdev);
+}
+
+void radeon_ring_unlock_commit(struct radeon_device *rdev)
+{
+        radeon_ring_commit(rdev);
         mutex_unlock(&rdev->cp.mutex);
 }
 
@@ -344,20 +361,23 @@ int radeon_ring_init(struct radeon_device *rdev, unsigned ring_size)
 void radeon_ring_fini(struct radeon_device *rdev)
 {
         int r;
+        struct radeon_bo *ring_obj;
 
         mutex_lock(&rdev->cp.mutex);
-        if (rdev->cp.ring_obj) {
-                r = radeon_bo_reserve(rdev->cp.ring_obj, false);
+        ring_obj = rdev->cp.ring_obj;
+        rdev->cp.ring = NULL;
+        rdev->cp.ring_obj = NULL;
+        mutex_unlock(&rdev->cp.mutex);
+
+        if (ring_obj) {
+                r = radeon_bo_reserve(ring_obj, false);
                 if (likely(r == 0)) {
-                        radeon_bo_kunmap(rdev->cp.ring_obj);
-                        radeon_bo_unpin(rdev->cp.ring_obj);
-                        radeon_bo_unreserve(rdev->cp.ring_obj);
+                        radeon_bo_kunmap(ring_obj);
+                        radeon_bo_unpin(ring_obj);
+                        radeon_bo_unreserve(ring_obj);
                 }
-                radeon_bo_unref(&rdev->cp.ring_obj);
-                rdev->cp.ring = NULL;
-                rdev->cp.ring_obj = NULL;
+                radeon_bo_unref(&ring_obj);
         }
-        mutex_unlock(&rdev->cp.mutex);
 }