1 files changed, 62 insertions, 10 deletions

diff --git a/drivers/gpu/drm/i915/i915_dma.c b/drivers/gpu/drm/i915/i915_dma.c
index f112c769d53..8c4783180bf 100644
--- a/drivers/gpu/drm/i915/i915_dma.c
+++ b/drivers/gpu/drm/i915/i915_dma.c
@@ -846,7 +846,7 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
                 return 0;
         }
 
-        printk(KERN_DEBUG "set status page addr 0x%08x\n", (u32)hws->addr);
+        DRM_DEBUG("set status page addr 0x%08x\n", (u32)hws->addr);
 
         dev_priv->status_gfx_addr = hws->addr & (0x1ffff<<12);
 
@@ -885,8 +885,8 @@ static int i915_set_status_page(struct drm_device *dev, void *data,
  * some RAM for the framebuffer at early boot.  This code figures out
  * how much was set aside so we can use it for our own purposes.
  */
-static int i915_probe_agp(struct drm_device *dev, unsigned long *aperture_size,
-                          unsigned long *preallocated_size)
+static int i915_probe_agp(struct drm_device *dev, uint32_t *aperture_size,
+                          uint32_t *preallocated_size)
 {
         struct pci_dev *bridge_dev;
         u16 tmp = 0;
@@ -984,10 +984,11 @@ static int i915_probe_agp(struct drm_device *dev, unsigned long *aperture_size,
         return 0;
 }
 
-static int i915_load_modeset_init(struct drm_device *dev)
+static int i915_load_modeset_init(struct drm_device *dev,
+                                  unsigned long prealloc_size,
+                                  unsigned long agp_size)
 {
         struct drm_i915_private *dev_priv = dev->dev_private;
-        unsigned long agp_size, prealloc_size;
         int fb_bar = IS_I9XX(dev) ? 2 : 0;
         int ret = 0;
 
@@ -1002,10 +1003,6 @@ static int i915_load_modeset_init(struct drm_device *dev)
         if (IS_I965G(dev) || IS_G33(dev))
                 dev_priv->cursor_needs_physical = false;
 
-        ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
-        if (ret)
-                goto out;
-
         /* Basic memrange allocator for stolen space (aka vram) */
         drm_mm_init(&dev_priv->vram, 0, prealloc_size);
 
@@ -1082,6 +1079,44 @@ void i915_master_destroy(struct drm_device *dev, struct drm_master *master)
         master->driver_priv = NULL;
 }
 
+static void i915_get_mem_freq(struct drm_device *dev)
+{
+        drm_i915_private_t *dev_priv = dev->dev_private;
+        u32 tmp;
+
+        if (!IS_IGD(dev))
+                return;
+
+        tmp = I915_READ(CLKCFG);
+
+        switch (tmp & CLKCFG_FSB_MASK) {
+        case CLKCFG_FSB_533:
+                dev_priv->fsb_freq = 533; /* 133*4 */
+                break;
+        case CLKCFG_FSB_800:
+                dev_priv->fsb_freq = 800; /* 200*4 */
+                break;
+        case CLKCFG_FSB_667:
+                dev_priv->fsb_freq =  667; /* 167*4 */
+                break;
+        case CLKCFG_FSB_400:
+                dev_priv->fsb_freq = 400; /* 100*4 */
+                break;
+        }
+
+        switch (tmp & CLKCFG_MEM_MASK) {
+        case CLKCFG_MEM_533:
+                dev_priv->mem_freq = 533;
+                break;
+        case CLKCFG_MEM_667:
+                dev_priv->mem_freq = 667;
+                break;
+        case CLKCFG_MEM_800:
+                dev_priv->mem_freq = 800;
+                break;
+        }
+}
+
 /**
  * i915_driver_load - setup chip and create an initial config
  * @dev: DRM device
@@ -1098,6 +1133,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         struct drm_i915_private *dev_priv = dev->dev_private;
         resource_size_t base, size;
         int ret = 0, mmio_bar = IS_I9XX(dev) ? 0 : 1;
+        uint32_t agp_size, prealloc_size;
 
         /* i915 has 4 more counters */
         dev->counters += 4;
@@ -1146,9 +1182,22 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                          "performance may suffer.\n");
         }
 
+        ret = i915_probe_agp(dev, &agp_size, &prealloc_size);
+        if (ret)
+                goto out_iomapfree;
+
         /* enable GEM by default */
         dev_priv->has_gem = 1;
 
+        if (prealloc_size > agp_size * 3 / 4) {
+                DRM_ERROR("Detected broken video BIOS with %d/%dkB of video "
+                          "memory stolen.\n",
+                          prealloc_size / 1024, agp_size / 1024);
+                DRM_ERROR("Disabling GEM. (try reducing stolen memory or "
+                          "updating the BIOS to fix).\n");
+                dev_priv->has_gem = 0;
+        }
+
         dev->driver->get_vblank_counter = i915_get_vblank_counter;
         dev->max_vblank_count = 0xffffff; /* only 24 bits of frame count */
         if (IS_G4X(dev) || IS_IGDNG(dev)) {
@@ -1165,6 +1214,8 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                         goto out_iomapfree;
         }
 
+        i915_get_mem_freq(dev);
+
         /* On the 945G/GM, the chipset reports the MSI capability on the
          * integrated graphics even though the support isn't actually there
          * according to the published specs.  It doesn't appear to function
@@ -1180,6 +1231,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
                 pci_enable_msi(dev->pdev);
 
         spin_lock_init(&dev_priv->user_irq_lock);
+        spin_lock_init(&dev_priv->error_lock);
         dev_priv->user_irq_refcount = 0;
 
         ret = drm_vblank_init(dev, I915_NUM_PIPE);
@@ -1190,7 +1242,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
         }
 
         if (drm_core_check_feature(dev, DRIVER_MODESET)) {
-                ret = i915_load_modeset_init(dev);
+                ret = i915_load_modeset_init(dev, prealloc_size, agp_size);
                 if (ret < 0) {
                         DRM_ERROR("failed to init modeset\n");
                         goto out_rmmap;