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drm/i915: Remove use on gma_bus_addr on gen6+ 

We have enough info to not use the intel_gtt bridge stuff.

v2: Move setup of mappable_base above the legacy init stuff because we
still need that on older platforms. (Daniel)

v3: Remove the dev_priv hunk which was rebased in by accident

Reviewed-by: Rodrigo Vivi <rodrigo.vivi@gmail.com> (v2)
Signed-off-by: Ben Widawsky <ben@bwidawsk.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Ben Widawsky 2013-01-17 12:45:16 -08:00 committed by Daniel Vetter
parent 5d4545aef5
commit dabb7a91ae
3 changed files with 4 additions and 4 deletions
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3
drivers/gpu/drm/i915/i915_dma.c
View File

@ -1426,7 +1426,7 @@ static void i915_kick_out_firmware_fb(struct drm_i915_private *dev_priv)
if (!ap)
return;
ap->ranges[0].base = dev_priv->mm.gtt->gma_bus_addr;
ap->ranges[0].base = dev_priv->gtt.mappable_base;
ap->ranges[0].size =
dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
primary =
@ -1543,7 +1543,6 @@ int i915_driver_load(struct drm_device *dev, unsigned long flags)
}
aperture_size = dev_priv->mm.gtt->gtt_mappable_entries << PAGE_SHIFT;
dev_priv->gtt.mappable_base = dev_priv->mm.gtt->gma_bus_addr;
dev_priv->gtt.mappable =
io_mapping_create_wc(dev_priv->gtt.mappable_base,

3
drivers/gpu/drm/i915/i915_gem_gtt.c
View File

@ -691,6 +691,8 @@ int i915_gem_gtt_init(struct drm_device *dev)
u16 snb_gmch_ctl;
int ret;
dev_priv->gtt.mappable_base = pci_resource_start(dev->pdev, 2);
/* On modern platforms we need not worry ourself with the legacy
* hostbridge query stuff. Skip it entirely
*/
@ -723,7 +725,6 @@ int i915_gem_gtt_init(struct drm_device *dev)
/* For GEN6+ the PTEs for the ggtt live at 2MB + BAR0 */
gtt_bus_addr = pci_resource_start(dev->pdev, 0) + (2<<20);
dev_priv->mm.gtt->gma_bus_addr = pci_resource_start(dev->pdev, 2);
/* i9xx_setup */
pci_read_config_word(dev->pdev, SNB_GMCH_CTRL, &snb_gmch_ctl);

2
drivers/gpu/drm/i915/intel_ringbuffer.c
View File

@ -1203,7 +1203,7 @@ static int intel_init_ring_buffer(struct drm_device *dev,
goto err_unpin;
ring->virtual_start =
ioremap_wc(dev_priv->mm.gtt->gma_bus_addr + obj->gtt_offset,
ioremap_wc(dev_priv->gtt.mappable_base + obj->gtt_offset,
ring->size);
if (ring->virtual_start == NULL) {
DRM_ERROR("Failed to map ringbuffer.\n");