summaryrefslogtreecommitdiff
path: root/drivers/gpu/drm/i915/i915_dma.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/gpu/drm/i915/i915_dma.c')
-rw-r--r--drivers/gpu/drm/i915/i915_dma.c72
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 f112c769d533..8c4783180bf6 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;