Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel...

[platform/kernel/linux-starfive.git] / drivers / gpu / drm / i915 / i915_gem.c

diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index e957f37..107f09b 100644 (file)
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -1399,10 +1399,18 @@ out:
        case 0:
        case -ERESTARTSYS:
        case -EINTR:
+       case -EBUSY:
+               /*
+                * EBUSY is ok: this just means that another thread
+                * already did the job.
+                */
                return VM_FAULT_NOPAGE;
        case -ENOMEM:
                return VM_FAULT_OOM;
+       case -ENOSPC:
+               return VM_FAULT_SIGBUS;
        default:
+               WARN_ONCE(ret, "unhandled error in i915_gem_fault: %i\n", ret);
                return VM_FAULT_SIGBUS;
        }
 }
@@ -1816,10 +1824,11 @@ i915_gem_object_get_pages_gtt(struct drm_i915_gem_object *obj)
                sg_set_page(sg, page, PAGE_SIZE, 0);
        }
 
+       obj->pages = st;
+
        if (i915_gem_object_needs_bit17_swizzle(obj))
                i915_gem_object_do_bit_17_swizzle(obj);
 
-       obj->pages = st;
        return 0;
 
 err_pages:
@@ -1949,11 +1958,12 @@ i915_gem_next_request_seqno(struct intel_ring_buffer *ring)
 int
 i915_add_request(struct intel_ring_buffer *ring,
                 struct drm_file *file,
-                struct drm_i915_gem_request *request)
+                u32 *out_seqno)
 {
        drm_i915_private_t *dev_priv = ring->dev->dev_private;
-       uint32_t seqno;
+       struct drm_i915_gem_request *request;
        u32 request_ring_position;
+       u32 seqno;
        int was_empty;
        int ret;
 
@@ -1968,11 +1978,9 @@ i915_add_request(struct intel_ring_buffer *ring,
        if (ret)
                return ret;
 
-       if (request == NULL) {
-               request = kmalloc(sizeof(*request), GFP_KERNEL);
-               if (request == NULL)
-                       return -ENOMEM;
-       }
+       request = kmalloc(sizeof(*request), GFP_KERNEL);
+       if (request == NULL)
+               return -ENOMEM;
 
        seqno = i915_gem_next_request_seqno(ring);
 
@@ -2024,6 +2032,8 @@ i915_add_request(struct intel_ring_buffer *ring,
                }
        }
 
+       if (out_seqno)
+               *out_seqno = seqno;
        return 0;
 }
 
@@ -3217,10 +3227,6 @@ int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
        enum i915_cache_level level;
        int ret;
 
-       ret = i915_mutex_lock_interruptible(dev);
-       if (ret)
-               return ret;
-
        switch (args->caching) {
        case I915_CACHING_NONE:
                level = I915_CACHE_NONE;
@@ -3232,6 +3238,10 @@ int i915_gem_set_caching_ioctl(struct drm_device *dev, void *data,
                return -EINVAL;
        }
 
+       ret = i915_mutex_lock_interruptible(dev);
+       if (ret)
+               return ret;
+
        obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
        if (&obj->base == NULL) {
                ret = -ENOENT;
@@ -3953,6 +3963,9 @@ i915_gem_init_hw(struct drm_device *dev)
        if (!intel_enable_gtt())
                return -EIO;
 
+       if (IS_HASWELL(dev) && (I915_READ(0x120010) == 1))
+               I915_WRITE(0x9008, I915_READ(0x9008) | 0xf0000);
+
        i915_gem_l3_remap(dev);
 
        i915_gem_init_swizzling(dev);
@@ -4092,7 +4105,6 @@ i915_gem_entervt_ioctl(struct drm_device *dev, void *data,
        }
 
        BUG_ON(!list_empty(&dev_priv->mm.active_list));
-       BUG_ON(!list_empty(&dev_priv->mm.inactive_list));
        mutex_unlock(&dev->struct_mutex);
 
        ret = drm_irq_install(dev);