Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6

[linux-2.6-omap-h63xx.git] / drivers / gpu / drm / i915 / i915_dma.c

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index d71c89f8802e08e34b7e919513c3e99aaf250a31..256e22963ae4d3949c9384aaec1921195d878ee6 100644 (file)
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -55,7 +55,8 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
                if (ring->space >= n)
                        return 0;
 
-               dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
+               if (dev_priv->sarea_priv)
+                       dev_priv->sarea_priv->perf_boxes |= I915_BOX_WAIT;
 
                if (ring->head != last_head)
                        i = 0;
@@ -75,7 +76,7 @@ int i915_wait_ring(struct drm_device * dev, int n, const char *caller)
  * Sets up the hardware status page for devices that need a physical address
  * in the register.
  */
-int i915_init_phys_hws(struct drm_device *dev)
+static int i915_init_phys_hws(struct drm_device *dev)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
        /* Program Hardware Status Page */
@@ -100,7 +101,7 @@ int i915_init_phys_hws(struct drm_device *dev)
  * Frees the hardware status page, whether it's a physical address or a virtual
  * address set up by the X Server.
  */
-void i915_free_hws(struct drm_device *dev)
+static void i915_free_hws(struct drm_device *dev)
 {
        drm_i915_private_t *dev_priv = dev->dev_private;
        if (dev_priv->status_page_dmah) {
@@ -128,7 +129,7 @@ void i915_kernel_lost_context(struct drm_device * dev)
        if (ring->space < 0)
                ring->space += ring->Size;
 
-       if (ring->head == ring->tail)
+       if (ring->head == ring->tail && dev_priv->sarea_priv)
                dev_priv->sarea_priv->perf_boxes |= I915_BOX_RING_EMPTY;
 }
 
@@ -144,8 +145,8 @@ static int i915_dma_cleanup(struct drm_device * dev)
 
        if (dev_priv->ring.virtual_start) {
                drm_core_ioremapfree(&dev_priv->ring.map, dev);
-               dev_priv->ring.virtual_start = 0;
-               dev_priv->ring.map.handle = 0;
+               dev_priv->ring.virtual_start = NULL;
+               dev_priv->ring.map.handle = NULL;
                dev_priv->ring.map.size = 0;
        }
 
@@ -433,10 +434,11 @@ static void i915_emit_breadcrumb(struct drm_device *dev)
        drm_i915_private_t *dev_priv = dev->dev_private;
        RING_LOCALS;
 
-       dev_priv->sarea_priv->last_enqueue = ++dev_priv->counter;
-
+       dev_priv->counter++;
        if (dev_priv->counter > 0x7FFFFFFFUL)
-               dev_priv->sarea_priv->last_enqueue = dev_priv->counter = 1;
+               dev_priv->counter = 0;
+       if (dev_priv->sarea_priv)
+               dev_priv->sarea_priv->last_enqueue = dev_priv->counter;
 
        BEGIN_LP_RING(4);
        OUT_RING(MI_STORE_DWORD_INDEX);
@@ -534,6 +536,9 @@ static int i915_dispatch_flip(struct drm_device * dev)
        drm_i915_private_t *dev_priv = dev->dev_private;
        RING_LOCALS;
 
+       if (!dev_priv->sarea_priv)
+               return -EINVAL;
+
        DRM_DEBUG("%s: page=%d pfCurrentPage=%d\n",
                  __func__,
                  dev_priv->current_page,
@@ -628,7 +633,8 @@ static int i915_batchbuffer(struct drm_device *dev, void *data,
        ret = i915_dispatch_batchbuffer(dev, batch);
        mutex_unlock(&dev->struct_mutex);
 
-       sarea_priv->last_dispatch = (int)hw_status[5];
+       if (sarea_priv)
+               sarea_priv->last_dispatch = (int)hw_status[5];
        return ret;
 }
 
@@ -663,7 +669,8 @@ static int i915_cmdbuffer(struct drm_device *dev, void *data,
                return ret;
        }
 
-       sarea_priv->last_dispatch = (int)hw_status[5];
+       if (sarea_priv)
+               sarea_priv->last_dispatch = (int)hw_status[5];
        return 0;
 }
 
@@ -820,9 +827,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
        base = drm_get_resource_start(dev, mmio_bar);
        size = drm_get_resource_len(dev, mmio_bar);
 
-       ret = drm_addmap(dev, base, size, _DRM_REGISTERS,
-                        _DRM_KERNEL | _DRM_DRIVER,
-                        &dev_priv->mmio_map);
+       dev_priv->regs = ioremap(base, size);
 
        i915_gem_load(dev);
 
@@ -839,8 +844,11 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         * correctly in testing on 945G.
         * This may be a side effect of MSI having been made available for PEG
         * and the registers being closely associated.
+        *
+        * According to chipset errata, on the 965GM, MSI interrupts may
+        * be lost or delayed
         */
-       if (!IS_I945G(dev) && !IS_I945GM(dev))
+       if (!IS_I945G(dev) && !IS_I945GM(dev) && !IS_I965GM(dev))
                if (pci_enable_msi(dev->pdev))
                        DRM_ERROR("failed to enable MSI\n");
 
@@ -860,8 +868,8 @@ int i915_driver_unload(struct drm_device *dev)
 
        i915_free_hws(dev);
 
-       if (dev_priv->mmio_map)
-               drm_rmmap(dev, dev_priv->mmio_map);
+       if (dev_priv->regs != NULL)
+               iounmap(dev_priv->regs);
 
        intel_opregion_free(dev);
 
@@ -935,15 +943,15 @@ struct drm_ioctl_desc i915_ioctls[] = {
        DRM_IOCTL_DEF(DRM_I915_SET_VBLANK_PIPE,  i915_vblank_pipe_set, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY ),
        DRM_IOCTL_DEF(DRM_I915_GET_VBLANK_PIPE,  i915_vblank_pipe_get, DRM_AUTH ),
        DRM_IOCTL_DEF(DRM_I915_VBLANK_SWAP, i915_vblank_swap, DRM_AUTH),
-       DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH),
-       DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_I915_HWS_ADDR, i915_set_status_page, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+       DRM_IOCTL_DEF(DRM_I915_GEM_INIT, i915_gem_init_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
        DRM_IOCTL_DEF(DRM_I915_GEM_EXECBUFFER, i915_gem_execbuffer, DRM_AUTH),
        DRM_IOCTL_DEF(DRM_I915_GEM_PIN, i915_gem_pin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
        DRM_IOCTL_DEF(DRM_I915_GEM_UNPIN, i915_gem_unpin_ioctl, DRM_AUTH|DRM_ROOT_ONLY),
        DRM_IOCTL_DEF(DRM_I915_GEM_BUSY, i915_gem_busy_ioctl, DRM_AUTH),
        DRM_IOCTL_DEF(DRM_I915_GEM_THROTTLE, i915_gem_throttle_ioctl, DRM_AUTH),
-       DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH),
-       DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH),
+       DRM_IOCTL_DEF(DRM_I915_GEM_ENTERVT, i915_gem_entervt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
+       DRM_IOCTL_DEF(DRM_I915_GEM_LEAVEVT, i915_gem_leavevt_ioctl, DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY),
        DRM_IOCTL_DEF(DRM_I915_GEM_CREATE, i915_gem_create_ioctl, 0),
        DRM_IOCTL_DEF(DRM_I915_GEM_PREAD, i915_gem_pread_ioctl, 0),
        DRM_IOCTL_DEF(DRM_I915_GEM_PWRITE, i915_gem_pwrite_ioctl, 0),
@@ -952,6 +960,7 @@ struct drm_ioctl_desc i915_ioctls[] = {
        DRM_IOCTL_DEF(DRM_I915_GEM_SW_FINISH, i915_gem_sw_finish_ioctl, 0),
        DRM_IOCTL_DEF(DRM_I915_GEM_SET_TILING, i915_gem_set_tiling, 0),
        DRM_IOCTL_DEF(DRM_I915_GEM_GET_TILING, i915_gem_get_tiling, 0),
+       DRM_IOCTL_DEF(DRM_I915_GEM_GET_APERTURE, i915_gem_get_aperture_ioctl, 0),
 };
 
 int i915_max_ioctl = DRM_ARRAY_SIZE(i915_ioctls);