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drm/i915: use the complete gtt 

At least the part that's currently enabled by the BIOS.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Daniel Vetter 2010-09-22 23:44:24 +02:00 committed by Chris Wilson
parent 16e809acc1
commit 53984635a6
3 changed files with 13 additions and 8 deletions
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14
drivers/gpu/drm/i915/i915_dma.c
View File

@ -1195,13 +1195,17 @@ static bool i915_switcheroo_can_switch(struct pci_dev *pdev)
return can_switch;
}
static int i915_load_modeset_init(struct drm_device *dev,
unsigned long prealloc_size,
unsigned long agp_size)
static int i915_load_modeset_init(struct drm_device *dev)
{
struct drm_i915_private *dev_priv = dev->dev_private;
unsigned long prealloc_size, gtt_size, mappable_size;
int ret = 0;
prealloc_size = dev_priv->mm.gtt->gtt_stolen_entries << PAGE_SHIFT;
gtt_size = dev_priv->mm.gtt->gtt_total_entries << PAGE_SHIFT;
mappable_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
gtt_size -= PAGE_SIZE;
/* Basic memrange allocator for stolen space (aka mm.vram) */
drm_mm_init(&dev_priv->mm.vram, 0, prealloc_size);
@ -1214,7 +1218,7 @@ static int i915_load_modeset_init(struct drm_device *dev,
* at the last page of the aperture. One page should be enough to
* keep any prefetching inside of the aperture.
*/
i915_gem_do_init(dev, prealloc_size, agp_size - 4096);
i915_gem_do_init(dev, prealloc_size, mappable_size, gtt_size);
mutex_lock(&dev->struct_mutex);
ret = i915_gem_init_ringbuffer(dev);
@ -2056,7 +2060,7 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
intel_detect_pch(dev);
if (drm_core_check_feature(dev, DRIVER_MODESET)) {
ret = i915_load_modeset_init(dev, prealloc_size, agp_size);
ret = i915_load_modeset_init(dev);
if (ret < 0) {
DRM_ERROR("failed to init modeset\n");
goto out_workqueue_free;

2
drivers/gpu/drm/i915/i915_drv.h
View File

@ -1041,7 +1041,7 @@ int i915_gem_object_set_domain(struct drm_gem_object *obj,
int i915_gem_init_ringbuffer(struct drm_device *dev);
void i915_gem_cleanup_ringbuffer(struct drm_device *dev);
int i915_gem_do_init(struct drm_device *dev, unsigned long start,
unsigned long end);
unsigned long mappable_end, unsigned long end);
int i915_gpu_idle(struct drm_device *dev);
int i915_gem_idle(struct drm_device *dev);
int i915_add_request(struct drm_device *dev,

5
drivers/gpu/drm/i915/i915_gem.c
View File

@ -173,6 +173,7 @@ i915_gem_object_is_inactive(struct drm_i915_gem_object *obj_priv)
int i915_gem_do_init(struct drm_device *dev,
unsigned long start,
unsigned long mappable_end,
unsigned long end)
{
drm_i915_private_t *dev_priv = dev->dev_private;
@ -187,7 +188,7 @@ int i915_gem_do_init(struct drm_device *dev,
end - start);
dev_priv->mm.gtt_total = end - start;
dev_priv->mm.gtt_mappable_end = end;
dev_priv->mm.gtt_mappable_end = mappable_end;
return 0;
}
@ -200,7 +201,7 @@ i915_gem_init_ioctl(struct drm_device *dev, void *data,
int ret;
mutex_lock(&dev->struct_mutex);
ret = i915_gem_do_init(dev, args->gtt_start, args->gtt_end);
ret = i915_gem_do_init(dev, args->gtt_start, args->gtt_end, args->gtt_end);
mutex_unlock(&dev->struct_mutex);
return ret;