Not the whole world is a radeon! :-)

Signed-off-by: Maarten Lankhorst <maarten.lankhorst at canonical.com>
---
 drivers/gpu/drm/radeon/radeon.h         | 11 ---------
 drivers/gpu/drm/radeon/radeon_cs.c      | 32 +++++++++++++++++++++----
 drivers/gpu/drm/radeon/radeon_display.c | 41 ++++++++++++++++++++++++---------
 drivers/gpu/drm/radeon/radeon_fence.c   |  3 +++
 drivers/gpu/drm/radeon/radeon_mode.h    |  1 +
 5 files changed, 61 insertions(+), 27 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h
index d80dc547a105..dddb2b7dd752 100644
--- a/drivers/gpu/drm/radeon/radeon.h
+++ b/drivers/gpu/drm/radeon/radeon.h
@@ -699,17 +699,6 @@ void radeon_doorbell_free(struct radeon_device *rdev, u32 
doorbell);
  * IRQS.
  */

-struct radeon_flip_work {
-       struct work_struct              flip_work;
-       struct work_struct              unpin_work;
-       struct radeon_device            *rdev;
-       int                             crtc_id;
-       uint64_t                        base;
-       struct drm_pending_vblank_event *event;
-       struct radeon_bo                *old_rbo;
-       struct radeon_fence             *fence;
-};
-
 struct r500_irq_stat_regs {
        u32 disp_int;
        u32 hdmi0_status;
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c 
b/drivers/gpu/drm/radeon/radeon_cs.c
index 6e3d1c8f3483..8ad4e2cfae15 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -248,23 +248,34 @@ static int radeon_cs_get_ring(struct radeon_cs_parser *p, 
u32 ring, s32 priority
        return 0;
 }

-static void radeon_cs_sync_rings(struct radeon_cs_parser *p)
+static int radeon_cs_sync_rings(struct radeon_cs_parser *p)
 {
        int i;

        for (i = 0; i < p->nrelocs; i++) {
                struct reservation_object *resv;
                struct fence *fence;
+               struct radeon_fence *rfence;
+               int r;

                if (!p->relocs[i].robj)
                        continue;

                resv = p->relocs[i].robj->tbo.resv;
                fence = reservation_object_get_excl(resv);
+               if (!fence)
+                       continue;
+               rfence = to_radeon_fence(fence);
+               if (!rfence || rfence->rdev != p->rdev) {
+                       r = fence_wait(fence, true);
+                       if (r)
+                               return r;
+                       continue;
+               }

-               radeon_semaphore_sync_to(p->ib.semaphore,
-                                        (struct radeon_fence *)fence);
+               radeon_semaphore_sync_to(p->ib.semaphore, rfence);
        }
+       return 0;
 }

 /* XXX: note that this is called from the legacy UMS CS ioctl as well */
@@ -474,13 +485,19 @@ static int radeon_cs_ib_chunk(struct radeon_device *rdev,
                return r;
        }

+       r = radeon_cs_sync_rings(parser);
+       if (r) {
+               if (r != -ERESTARTSYS)
+                       DRM_ERROR("Failed to sync rings: %i\n", r);
+               return r;
+       }
+
        if (parser->ring == R600_RING_TYPE_UVD_INDEX)
                radeon_uvd_note_usage(rdev);
        else if ((parser->ring == TN_RING_TYPE_VCE1_INDEX) ||
                 (parser->ring == TN_RING_TYPE_VCE2_INDEX))
                radeon_vce_note_usage(rdev);

-       radeon_cs_sync_rings(parser);
        r = radeon_ib_schedule(rdev, &parser->ib, NULL, true);
        if (r) {
                DRM_ERROR("Failed to schedule IB !\n");
@@ -567,7 +584,12 @@ static int radeon_cs_ib_vm_chunk(struct radeon_device 
*rdev,
        if (r) {
                goto out;
        }
-       radeon_cs_sync_rings(parser);
+       r = radeon_cs_sync_rings(parser);
+       if (r) {
+               if (r != -ERESTARTSYS)
+                       DRM_ERROR("Failed to sync rings: %i\n", r);
+               goto out;
+       }
        radeon_semaphore_sync_to(parser->ib.semaphore, vm->fence);

        if ((rdev->family >= CHIP_TAHITI) &&
diff --git a/drivers/gpu/drm/radeon/radeon_display.c 
b/drivers/gpu/drm/radeon/radeon_display.c
index bc894c17b2f9..715b2d95346c 100644
--- a/drivers/gpu/drm/radeon/radeon_display.c
+++ b/drivers/gpu/drm/radeon/radeon_display.c
@@ -36,6 +36,17 @@

 #include <linux/gcd.h>

+struct radeon_flip_work {
+       struct work_struct              flip_work;
+       struct work_struct              unpin_work;
+       struct radeon_device            *rdev;
+       int                             crtc_id;
+       uint64_t                        base;
+       struct drm_pending_vblank_event *event;
+       struct radeon_bo                *old_rbo;
+       struct fence                    *fence;
+};
+
 static void avivo_crtc_load_lut(struct drm_crtc *crtc)
 {
        struct radeon_crtc *radeon_crtc = to_radeon_crtc(crtc);
@@ -402,14 +413,21 @@ static void radeon_flip_work_func(struct work_struct 
*__work)

         down_read(&rdev->exclusive_lock);
        if (work->fence) {
-               r = radeon_fence_wait(work->fence, false);
-               if (r == -EDEADLK) {
-                       up_read(&rdev->exclusive_lock);
-                       do {
-                               r = radeon_gpu_reset(rdev);
-                       } while (r == -EAGAIN);
-                       down_read(&rdev->exclusive_lock);
-               }
+               struct radeon_fence *fence;
+
+               fence = to_radeon_fence(work->fence);
+               if (fence && fence->rdev == rdev) {
+                       r = radeon_fence_wait(fence, false);
+                       if (r == -EDEADLK) {
+                               up_read(&rdev->exclusive_lock);
+                               do {
+                                       r = radeon_gpu_reset(rdev);
+                               } while (r == -EAGAIN);
+                               down_read(&rdev->exclusive_lock);
+                       }
+               } else
+                       r = fence_wait(fence, false);
+
                if (r)
                        DRM_ERROR("failed to wait on page flip fence (%d)!\n", 
r);

@@ -418,7 +436,8 @@ static void radeon_flip_work_func(struct work_struct 
*__work)
                 * confused about which BO the CRTC is scanning out
                 */

-               radeon_fence_unref(&work->fence);
+               fence_put(work->fence);
+               work->fence = NULL;
        }

        /* We borrow the event spin lock for protecting flip_status */
@@ -494,7 +513,7 @@ static int radeon_crtc_page_flip(struct drm_crtc *crtc,
                DRM_ERROR("failed to pin new rbo buffer before flip\n");
                goto cleanup;
        }
-       work->fence = (struct radeon_fence 
*)fence_get(reservation_object_get_excl(new_rbo->tbo.resv));
+       work->fence = fence_get(reservation_object_get_excl(new_rbo->tbo.resv));
        radeon_bo_get_tiling_flags(new_rbo, &tiling_flags, NULL);
        radeon_bo_unreserve(new_rbo);

@@ -576,7 +595,7 @@ pflip_cleanup:

 cleanup:
        drm_gem_object_unreference_unlocked(&work->old_rbo->gem_base);
-       radeon_fence_unref(&work->fence);
+       fence_put(work->fence);
        kfree(work);
        return r;
 }
diff --git a/drivers/gpu/drm/radeon/radeon_fence.c 
b/drivers/gpu/drm/radeon/radeon_fence.c
index af9f2d6bd7d0..0262fe2580d2 100644
--- a/drivers/gpu/drm/radeon/radeon_fence.c
+++ b/drivers/gpu/drm/radeon/radeon_fence.c
@@ -541,6 +541,9 @@ int radeon_fence_wait(struct radeon_fence *fence, bool intr)
        uint64_t seq[RADEON_NUM_RINGS] = {};
        long r;

+       if (unlikely(!to_radeon_fence(&fence->base)))
+               return fence_wait(&fence->base, intr);
+
        seq[fence->ring] = fence->seq;
        r = radeon_fence_wait_seq_timeout(fence->rdev, seq, intr, 
MAX_SCHEDULE_TIMEOUT);
        if (r < 0) {
diff --git a/drivers/gpu/drm/radeon/radeon_mode.h 
b/drivers/gpu/drm/radeon/radeon_mode.h
index e27608c29c11..f6e9ee573de2 100644
--- a/drivers/gpu/drm/radeon/radeon_mode.h
+++ b/drivers/gpu/drm/radeon/radeon_mode.h
@@ -40,6 +40,7 @@

 struct radeon_bo;
 struct radeon_device;
+struct radeon_flip_work;

 #define to_radeon_crtc(x) container_of(x, struct radeon_crtc, base)
 #define to_radeon_connector(x) container_of(x, struct radeon_connector, base)
-- 
2.0.4


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